CN106320622B - A kind of Ceramic Tiles and its production method of dry-pressing injection forming - Google Patents
A kind of Ceramic Tiles and its production method of dry-pressing injection forming Download PDFInfo
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- CN106320622B CN106320622B CN201610644530.9A CN201610644530A CN106320622B CN 106320622 B CN106320622 B CN 106320622B CN 201610644530 A CN201610644530 A CN 201610644530A CN 106320622 B CN106320622 B CN 106320622B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 72
- 238000002347 injection Methods 0.000 title claims abstract description 54
- 239000007924 injection Substances 0.000 title claims abstract description 54
- 238000003825 pressing Methods 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 64
- 235000015895 biscuits Nutrition 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 238000005453 pelletization Methods 0.000 claims description 10
- 210000003298 dental enamel Anatomy 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 10
- 238000005336 cracking Methods 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000011449 brick Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000010433 feldspar Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010020 roller printing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/142—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/004—Devices for shaping artificial aggregates from ceramic mixtures or from mixtures containing hydraulic binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
- B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
- B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses the Ceramic Tiles and its production method of a kind of dry-pressing injection forming, including green body, the green body includes adobe layer and precoat, and the upper surface of the adobe layer has the cavity to lower recess；The precoat is set to the upper surface of adobe layer, and the precoat fills and leads up the cavity of the adobe layer.The surface that the precoat covers the adobe layer is set, solves the problems, such as the ceramic tile blank rough surface of dry-press process, the smooth surface of the green body of the Ceramic Tiles of the dry-pressing injection forming greatly increases the smoothness of finished product ceramic tile glaze paint.Moreover, the upper surface of the adobe layer has the cavity to lower recess, according to material mechanics principle it is found that the cavity disperses the stress of the adobe layer of dry-press process, it is not susceptible to season cracking, improves product quality.
Description
Technical field
The present invention relates to architectural pottery production field more particularly to a kind of Ceramic Tiles and its producer of dry-pressing injection forming
Method.
Background technique
The dry process for forming of architectural pottery is that the ceramic powder after grinding is poured into compacting tool set after non-slurry pelletizing
In, then adobe is pressed by impact molding machine.Since the ceramic powder grain shape that non-slurry pelletizing is formed is mostly particle size
Different centrum and/or cylinder forms uniform spherical particles rather than traditional mist projection granulating like that；To make it suppress
The defects of there are powder particles to be difficult to control for the adobe come, base face is coarse, and then the smoothness for generating finished product ceramic tile glaze paint is low, beautiful
Feel the problems such as poor, excellence rate is low；Moreover, adobe stress is concentrated, it is easy to happen season cracking in dry and sintering process, is broken
Loss rate is high, seriously affects product quality.
Summary of the invention
It is an object of the invention to propose a kind of adobe internal stress dispersion, finished surface is smooth, the low dry-pressing of the proportion of goods damageds
The Ceramic Tiles and its production method of injection forming.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of Ceramic Tiles of dry-pressing injection forming, including green body, the green body include adobe layer and precoat, the adobe
The upper surface of layer has the cavity to lower recess；
The precoat is set to the upper surface of adobe layer, and the precoat fills and leads up the cavity of the adobe layer.
Such structure, using cavity from adobe layer upper surface to lower recess by answering in the stamping adobe of dry method powder
Power is dispersed on radial brick face, in dry and sintering process, it is possible to reduce the breakage rate of adobe, while will be recessed using precoat
Chamber is filled and led up, it is therefore an objective to obtain smooth brick face.In order to make it have preferable composite effect, precoat is after being dried by slurry
It obtains.
Preferably, the cross section of the cavity of the adobe layer is arc, i.e., the described cavity is gradually inside from edge to center
Recess；
The central concave depth of the cavity of the adobe layer is 3~5mm.
In general, there is adobe layer surface recess texture can be relieved stress, but its section is arc, and cavity is from side
Edge can make stress obtain preferably dispersion to the structure that center is gradually recessed inwardly.The central concave depth of the cavity of adobe layer
It is set as 3~5mm, this is because within this range, the breakage rate of adobe is minimum.
Preferably, the formula of the precoat includes 40~60% non-plastic raw materials.In the formula of precoat include 40~
60% non-plastic raw material, this is because precoat preferably by injecting slurry, is formed, if wherein having more after slurry is dry
Plasticity material can then be such that slurry year increases, and specific gravity reduces, and moisture content is higher, and the precoat formed after slurry is dry in this way can
The problems such as shrinkage cracking, inwardly serious recess can be will appear, and then influence quality, therefore, precoat formula should containing compared with
More non-plastic raw materials, adjustable dry contraction, and compared with the mobility for guaranteeing slurry under low-water-content.
Preferably, the formula of above-mentioned adobe layer is identical with the formula of the precoat.It is formulated identical, the two, which is finally sintered, is
It is not easy to be layered.
Preferably, absolute value of the difference≤0.05 of the firing constriction coefficient of the adobe layer and the precoat.Selection exists
This numberical range, purpose is primarily to avoid causing due to being burnt into constriction coefficient and differing greatly between adobe layer and precoat
Layering the defects of.
Preferably, further include glaze layer and printed layer, the glaze layer be set to the precoat and the printed layer it
Between.In fabric layer surface charity glaze, printing ornament is carried out, decorative effect more abundant can be obtained.Here charity glaze can
To use well known covering type ground coat enamel, certainly transparent, translucent etc. glaze are also it can be selected that stamp can be using including but unlimited
The printing technology well known to ink-jet, roller, silk screen etc..
Preferably, above-mentioned green body with a thickness of 9~11mm.Within the scope of this green body cup depth, green body thickness is set
For 9~11mm, higher blank strength can be obtained.
Preferably, the method for the Ceramic Tiles of the dry-pressing injection forming is produced, comprising the following steps:
Adobe of the upper surface with the cavity to lower recess is made using the powder punching press of non-slurry pelletizing, to adobe in step A
Biscuiting is carried out, biscuit is obtained；
Step B selects the known ceramic tile production of absolute value of the difference≤0.05 of the adobe firing constriction coefficient with step A
Slurry is made with raw material；
Step C, by the cavity of the slurry injection step A biscuit obtained, the slurry should fill out the cavity
It is flat, obtain green body；
Step D is dried the step C green body obtained, the pottery of the dry-pressing injection forming is obtained after high temperature firing
Ceramic tile.
Preferably, in above-mentioned steps B, selecting the fineness of slurry is that 300 meshes tail over as 3~4g/100ml, slurry
Specific gravity is 1.72~1.76, and the moisture content of slurry is 34~38%, and the four flow velocity cup flow velocity of painting of slurry is 40~60s/ml.Herein
Slurry under technological parameter can obtain preferable brick face effect, and surface is uniform, and not easy to crack.
Preferably, the biscuiting temperature of adobe is 1000~1050 DEG C in the step A.
It is to be appreciated that the sequence of step A and step B can exchange.
Preferably, in the step C, the slurry is injected by slip shower in the cavity of the biscuit.
Preferably, the step D includes:
Step D1, the green body that step C is obtained dry 20min in 25~280 DEG C；
Bestow glaze in the upper surface of step D2, green body after the drying；
Green body after glazing is fired at 1100~1150 DEG C, is then polished to the green body after firing by step D3,
The Ceramic Tiles of the dry-pressing injection forming are made.
Preferably, the step D2 further includes revenue stamp process: first ground coat enamel is bestowed in the upper surface of green body after the drying, then
Overglaze is bestowed in stamp, then the upper surface of the green body after stamp.
The adobe layer and the precoat is arranged in the Ceramic Tiles of the dry-pressing injection forming, and the precoat covering is arranged
The surface of the adobe layer solves the problems, such as the ceramic tile blank rough surface of dry-press process, the pottery of the dry-pressing injection forming
The smooth surface of the green body of ceramic tile greatly increases the smoothness of finished product ceramic tile glaze paint.Moreover, the adobe layer is upper
Surface has the cavity to lower recess, according to material mechanics principle it is found that the cavity makes the adobe layer of dry-press process
Stress dispersion, is not susceptible to season cracking, improves product quality.
The adobe biscuiting that the production method of the Ceramic Tiles of the dry-pressing injection forming is first pressed into non-slurry pelletizing at
Then biscuit will obtain green body in the cavity of slurry injection biscuit again to fill and lead up the cavity, to avoid dry method
Iron tramp overflows and influence the defects of rough surface to finished product glaze quality in molding adobe.Utilize the fabric of injection forming
The slurry, is filled and led up the cavity of biscuit, it is miscellaneous both to have solved iron in the adobe of dry-press process by the extremely smooth feature of layer surface
The problem of matter spilling and rough surface, the ink-jet drying process in slip-casting shaping process is in turn avoided, reduces finished product loss, improve
The aesthetic feeling and texture of finished product glaze paint realize that the resource close friend of production technology utilizes.
Detailed description of the invention
The present invention will be further described for attached drawing, but the content in attached drawing does not constitute any limitation of the invention.
Fig. 1 is the Ceramic Tiles structural schematic diagram of the dry-pressing injection forming of the one of embodiment of the present invention.
Wherein: green body 1；Adobe layer 11；Precoat 12；Glaze layer 2；Printed layer 3.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is to be appreciated that
Attached drawing is only the schematic diagram for illustrating this programme, is not drawn in strict accordance with ratio, and in order to protrude certain design features, having
Body position may have to be zoomed in or out accordingly.
Embodiment 1
The Ceramic Tiles of the dry-pressing injection forming of the present embodiment, including green body 1, as shown in Figure 1, the green body 1 includes adobe
Layer 11 and precoat 12, the upper surface of the adobe layer 11 have the cavity to lower recess；
The precoat 12 is set to the upper surface of adobe layer 11, and the precoat 12 fills and leads up the adobe layer 11
Cavity.
The dry process for forming of architectural pottery is that the ceramic powder after grinding is poured into compacting tool set after non-slurry pelletizing
In, then adobe is pressed by impact molding machine.Since the ceramic powder grain shape that non-slurry pelletizing is formed is mostly particle size
Different centrum and cylinder forms uniform spherical particles rather than traditional mist projection granulating like that；Come to make to suppress
Adobe there are powder particles it is not easy to control, base face is coarse the defects of, and then the smoothness for generating finished product ceramic tile glaze paint is low, aesthetic feeling
Difference, the problems such as excellence rate is low；Moreover, adobe stress is concentrated, it is easy to happen season cracking, seriously affects product quality.
And the adobe layer 11 and the precoat 12, the adobe layer 11 is arranged in the Ceramic Tiles of the dry-pressing injection forming
For the powder punch forming that dry method powder obtains, the characteristics of being limited to dry method powder, the surface of stamping adobe layer 11 is thick
Rough injustice, and the precoat 12 is that high temperature sintering forms after slurry made of ball milling is dry, therefore the surface of precoat 12 is flat
It is whole smooth, therefore the surface that the precoat 12 covers the adobe layer 11 is set, solve the ceramic tile blank table of dry-press process
The coarse problem in face, the smooth surface of the green body 1 of the Ceramic Tiles of the dry-pressing injection forming are subsequent to carry out glazing to it
And/or printing ornament, it also can greatly improve the smoothness of finished product ceramic tile glaze paint.
Moreover, the upper surface of the adobe layer 11 has the cavity to lower recess, it is according to material mechanics principle it is found that described
Cavity disperses the stress of the adobe layer 11 of dry-press process, is not susceptible to season cracking, improves product quality.
Preferably, the cross section of the cavity of the adobe layer 11 be arc, i.e., the described cavity from edge to center gradually to
Sunken inside；The central concave depth of the cavity of the adobe layer 11 is 3~5mm.The cavity of the adobe layer 11 is from edge in
The heart is gradually recessed inwardly, so that the stress that will focus on middle part disperses to the surrounding of adobe layer 11, and then adobe layer is made to be not easy to send out
Raw season cracking, reduces finished product breakage rate.The central concave depth of the cavity of the adobe layer 11 is 3~5mm, preferably
4.5mm.If the central concave depth is too small, stress peptizaiton is unobvious, and breakage rate is high for finished product；If the central concave
Depth is too big, then the thickness of the adobe layer 11 is too small, and intensity decline is easy to happen fracture.
Preferably, the formula of the precoat 12 includes 40~60% non-plastic raw materials；The formula of the adobe layer 11 and institute
The formula for stating precoat 12 is identical.The non-plastic raw material is the natural minerals such as quartz, feldspar, without viscosity after mixing with water, is increased
The mobility of the raw material of the strong precoat 12, the discharge of Free water when convenient for injecting precoat 12 to adobe layer 11；Meanwhile
Contraction of the precoat 12 in drying and firing is reduced, skeleton function is played.Moreover, if non-plastic raw material ratio is too low,
The raw material of the precoat 12 is more sticky, and poor fluidity is not easy to the discharge of Free water, but also the precoat 12 is strong
Degree reduces, and the upper surface of the precoat 12 is not able to maintain horizontal and is recessed, and influences the smoothness of finished surface；If lean property
Material rate is too high, then the mobility of the slurry of the precoat 12 is big, is easy to make precoat 12 because of the too fast discharge of Free water
Through-hole is generated when dry, and then makes the roughening injustice in upper surface of the precoat 12 after burning.
The formula of the adobe layer 11 is identical with the formula of the precoat 12, to make the adobe layer 11 and the face
The bed of material 12 reaches identical shrinkage value, being consistent property.The formula of the certain or described adobe layer 11 and the precoat 12
Formula is not identical, keeps different, green body 1 can also be made to form different levels, generate unique decorative effect.
Preferably, absolute value of the difference≤0.05 of the firing constriction coefficient of the adobe layer 11 and the precoat 12, from
And prevent the absolute value of the difference for being burnt into constriction coefficient because of the two excessive, and the smoothness of the green body 1 is reduced, or even make green body 1
It cracks in drying and firing, increases finished product breakage rate.
It preferably, further include glaze layer 2 and printed layer 3, as shown in Figure 1, the glaze layer 2 is set to the precoat 12
Between the printed layer 3；The green body 1 with a thickness of 9~11mm.The Ceramic Tiles of the dry-pressing injection forming further include glaze
Layer 2 and printed layer 3, the glaze layer 2 can make the surface of the Ceramic Tiles of dry-pressing injection forming more smooth bright, have antifouling anti-
The performances such as corrosion；The printed layer 3 makes the surface of the Ceramic Tiles of dry-pressing injection forming have colourful decorative pattern, described in enhancing
The decorative effect of the Ceramic Tiles of dry-pressing injection forming.The green body 1 with a thickness of 9~11mm, preferably 10mm.
Preferably, the method for the Ceramic Tiles of the dry-pressing injection forming is produced, comprising the following steps:
Adobe of the upper surface with the cavity to lower recess is made using the powder punching press of non-slurry pelletizing, to adobe in step A
Biscuiting is carried out, biscuit is obtained；
Step B selects the known ceramic tile production of absolute value of the difference≤0.05 of the adobe firing constriction coefficient with step A
Slurry is made with raw material；
Step C, by the cavity of the slurry injection step A biscuit obtained, the slurry should fill out the cavity
It is flat, obtain green body；
Step D is dried the step C green body obtained, the pottery of the dry-pressing injection forming is obtained after high temperature firing
Ceramic tile.
The production method of the Ceramic Tiles of the dry-pressing injection forming, the adobe biscuiting that first non-slurry pelletizing is pressed at
Then biscuit will obtain green body in the cavity of slurry injection biscuit again to fill and lead up the cavity, to avoid dry method
Iron tramp overflows and influence the defects of rough surface to finished product glaze quality in molding adobe.The adobe is burnt by biscuiting
It is greatly improved at intensity after biscuit, to support the grouting with plunger of step C；Simultaneously because the complete dehydration of biscuit, thus described
Biscuit described in step C can absorb rapidly the moisture of injection slurry, and slurry is made quickly to fill and lead up the cavity, improve injection forming
Speed.The production method of the Ceramic Tiles of the dry-pressing injection forming spy extremely smooth using the fabric layer surface of injection forming
The slurry, is filled and led up the cavity of biscuit by point, has both been solved in the adobe of dry-press process iron tramp and has been overflowed and shaggy
Problem in turn avoids the ink-jet drying process in slip-casting shaping process, reduces finished product loss, improves the aesthetic feeling and matter of finished product glaze paint
Sense realizes that the resource close friend of production technology utilizes.
The upper surface that the step A is used has the adobe to the cavity of lower recess, can be by with lower surface convex
The mold of upper mold risen is suppressed, the upper mold of the mold setting lower surface outwardly convex, to form upper surface and be
The die cavity of inside concave surface suppresses the upper surface of the adobe come with the cavity to lower recess using the mold, described
The dispersion of adobe stress, is not susceptible to season cracking, improves product quality.
The step B selects the known Ceramic Tiles of absolute value of the difference≤0.05 of the adobe firing constriction coefficient with step A
Slurry is made with raw material in production, to prevent the absolute value of the difference for being burnt into constriction coefficient because of the two excessive, and reduces the green body
Smoothness, or even green body is made to crack in drying and firing, increases finished product breakage rate.Moreover, can adjust the slurry
Surface tension so that manufactured billet surface has colourful mechanism, enhance made of ceramic brick product decoration effect
Fruit；The slurry that can also be used with using the more ratios of multicomponent, in order to the parameters such as the coefficient of expansion that adjusts green body entirety, increasing
The flexibility for adding production technology to adjust improves the performance of the Ceramic Tiles of the manufactured dry-pressing injection forming.
Preferably, in the step B, selecting fineness is the slurry of 300 meshes tailed over as 3~4g/100ml, institute
The specific gravity for stating slurry is 1.72~1.76, and the moisture content of the slurry is 34~38%, the four flow velocity cup flow velocity of painting of the slurry
For 40~60s/ml.
The particle fine uniform for the slurry selected, so as to which the extremely smooth green body in surface is made；Moreover,
The ratio of the slurry is great, and moisture content is low, to prevent because slurry is containing dilutional hyponatremia, and makes the green body table made of step C
Face is not able to maintain horizontal and is recessed, and influences the smoothness of finished product glaze paint；The four flow velocity cup flow velocity of painting of the slurry be 40~
60s/ml, the good fluidity of the slurry improve blank forming speed convenient for the discharge of Free water.
Preferably, the biscuiting temperature of adobe is 1000~1050 DEG C in the step A, and the effect of biscuiting mainly makes adobe
Moisture evaporation, organic matter volatilization and burning, carbonate decomposition, mineral composition and structure preliminarily form, to make the element of firing
Sintering briquette has enough intensity, plays a supporting role for the injection of subsequent slurry.
Preferably, in the step C, the slurry is injected by slip shower in the cavity of the biscuit.The slurry
It is injected in the cavity of the biscuit by slip shower without pressurization, the slurry freely falling body injection, without pressurization, operation letter
Single, input cost is low.
Preferably, the step D includes:
Step D1, the green body that step C is obtained dry 20min in 25~280 DEG C；
Bestow glaze in the upper surface of step D2, green body after the drying；
Green body after glazing is fired at 1100~1150 DEG C, is then polished to the green body after firing by step D3,
The Ceramic Tiles of the dry-pressing injection forming are made.
Hot wind force drying can be used in the step D1, shortens the body drying time.The step D2 is to the upper of green body
Surface glazing makes the ceramic tile of firing have the antifouling performances such as anticorrosive, improves product quality.Moreover, in step D3, after firing
Green body polished, make firing ceramic tile surface more it is smooth light, color is well-balanced, more has a sense of hierarchy.
Preferably, the step D2 further includes revenue stamp process: first ground coat enamel is bestowed in the upper surface of green body after the drying, then
Overglaze is bestowed in stamp, then the upper surface of the green body after stamp.Increase revenue stamp process in the step D2, the dry-pressing can be improved
The decorative effect of the Ceramic Tiles of injection forming expands the scope of application.The revenue stamp process uses traditional ceramics printing technique, including
Ink-jet printed, screen printing and roller printing etc..
Embodiment 2
The production method of the Ceramic Tiles of the dry-pressing injection forming of the present embodiment, comprising the following steps:
Step 1, it calculates according to the mass fraction, weighs 10 parts of clays, 38 parts of silts, 51 parts of feldspars and 1.2 parts of ceramic additives,
Non-slurry pelletizing is pressed into adobe of the upper surface with the cavity to lower recess, and the central concave depth of cavity is 4.5mm, brick
The edge thickness of base is 11mm；
Step 2,30min is fired at 1020 DEG C in the adobe in step 1, obtains biscuit；
Step 3, it calculates according to the mass fraction, weighs 10 parts of clays, 38 parts of silts, 51 parts of feldspars and 1.2 parts of ceramic additives,
Mixing and ball milling is the slurry of 300 meshes tailed over as 3~4g/100ml at fineness；
Step 4, the slurry that step 3 obtains is passed through in the cavity for the biscuit that slip shower injection step 2 obtains, the slurry
Material should fill and lead up the cavity, obtain green body；
Step 5, green body step 4 obtained dry 20min in 150 DEG C；
Step 6, ground coat enamel, dry 15min are bestowed in the upper surface of green body after the drying；The green body after applying ground coat enamel is upper again
Surface is ink-jet printed, then overglaze is bestowed in the upper surface of the green body after stamp；
Step 7, the green body after step 6 glazing stamp is fired into 60min at 1120 DEG C, then to the green body after firing into
Row polishing, can be prepared by the Ceramic Tiles of the dry-pressing injection forming.
The smooth surface of the Ceramic Tiles of the dry-pressing injection forming obtained, glaze paint smoothness is good, attractive appearance, resists
Rolling over intensity is 45.86.
Embodiment 3
According to the production method of the Ceramic Tiles of dry-pressing injection forming described in embodiment 1, the cavity of adobe layer 11 is made
The different Ceramic Tiles of central concave depth, the Ceramic Tiles of every kind of central concave depth produce 1000, and more every kind of central fovea
The breakage rate and flexural strength of the Ceramic Tiles of depth are fallen into, as a result as shown in table 1 below:
Table 1
As shown in Table 1, when the central concave depth of the cavity of the adobe layer 11 is too small, then the stress of the adobe layer 11
Peptizaiton is unobvious, and breakage rate is high for finished product Ceramic Tiles；When the central concave depth is too big,
Then the thickness of the adobe layer 11 is too small, and intensity decline is easy to happen fracture.Therefore, the adobe layer 11 is recessed
The central concave depth of chamber is 3~5mm, and preferably 4.5mm disperses stress, and Ceramic Tiles intensity is suitble to, and breakage rate is low.
Embodiment 4
According to the production method of the Ceramic Tiles of dry-pressing injection forming described in embodiment 1, the lean property that precoat 12 is made is former
Expect the different green body of content, and compares billet surface smoothness, as a result as shown in table 2 below:
| Non-plastic raw material content (%) | Billet surface smoothness |
| 20~40 | There is recess, it is unsmooth |
| 40~60 | It is flat and smooth |
| 60~80 | Rough surface, hole |
Table 2
As shown in Table 2, when the non-plastic raw material content of the precoat 12 is too low, then the raw material of the precoat 12 is more viscous
Thick, poor fluidity is not easy to the discharge of Free water, but also the strength reduction of the precoat 12, makes billet surface obtained
It is not able to maintain horizontal and is recessed, influence the smoothness of finished product glaze paint；When the non-plastic raw material content of the precoat 12 is too high,
Then the mobility of the raw material of the precoat 12 is excessive, is easy that precoat 12 is made to generate through-hole, system because of the too fast discharge of Free water
The roughening injustice of billet surface obtained.Therefore, the non-plastic raw material content of the precoat 12 is set as 40~60%, both guarantees have
Free water is discharged quickly in enough mobility, also ensures that billet surface obtained is smooth, improves the glaze of finished product Ceramic Tiles
The smoothness in face.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (7)
1. a kind of Ceramic Tiles of dry-pressing injection forming, including green body, it is characterised in that: the green body includes adobe layer and fabric
Layer, the upper surface of the adobe layer have the cavity to lower recess；
The precoat is set to the upper surface of adobe layer, and the precoat fills and leads up the cavity of the adobe layer；
Adobe layer is the ceramic powder punch forming that dry method powder obtains, and precoat is high after ceramic slurry made of ball milling is dry
Temperature is sintered；
The formula of the precoat includes 40~60% non-plastic raw materials；
The cross section of the cavity of the adobe layer is arc, i.e., the described cavity is gradually recessed inwardly from edge to center；
The central concave depth of the cavity of the adobe layer is 3~5mm.
2. the Ceramic Tiles of dry-pressing injection forming according to claim 1, it is characterised in that: the adobe layer and the fabric
Absolute value of the difference≤0.05 of the firing constriction coefficient of layer.
3. the Ceramic Tiles of dry-pressing injection forming according to claim 1, it is characterised in that: further include glaze layer and stamp
Layer, the glaze layer are set between the precoat and the printed layer.
4. the method for producing the Ceramic Tiles of dry-pressing injection forming as described in claim 1, which is characterized in that including following step
It is rapid:
Step A is made adobe of the upper surface with the cavity to lower recess using the powder punching press of non-slurry pelletizing, carries out to adobe
Biscuiting obtains biscuit；
Step B selects the known ceramic tile production of absolute value of the difference≤0.05 of the adobe firing constriction coefficient with step A former
Slurry is made in material；
Step C, by the cavity of the slurry injection step A biscuit obtained, the slurry should fill and lead up the cavity, obtain
To green body；
Step D is dried the step C green body obtained, the Ceramic Tiles of the dry-pressing injection forming is obtained after high temperature firing；
In the step B, the fineness of the slurry is that 300 meshes tail over as 3~4g/100ml, and the specific gravity of the slurry is
1.72~1.76, the moisture content of the slurry is 34~38%, and the four flow velocity cup flow velocity of painting of the slurry is 40~60s/ml；
The biscuiting temperature of adobe is 1000~1050 DEG C in the step A.
5. the production method of the Ceramic Tiles of dry-pressing injection forming according to claim 4, it is characterised in that: the step C
In, the slurry is injected by slip shower in the cavity of the biscuit.
6. the production method of the Ceramic Tiles of dry-pressing injection forming according to claim 4, which is characterized in that the step D
Include:
Step D1, the green body that step C is obtained dry 20min in 25~280 DEG C；
Bestow glaze in the upper surface of step D2, green body after the drying；
Green body after glazing is fired at 1100~1150 DEG C, then polishes, be made to the green body after firing by step D3
The Ceramic Tiles of the dry-pressing injection forming.
7. the production method of the Ceramic Tiles of dry-pressing injection forming according to claim 6, which is characterized in that the step D2
Further include revenue stamp process: first ground coat enamel is bestowed in the upper surface of green body after the drying, then stamp, then the green body after stamp is upper
Bestow overglaze in surface.
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| CN108724438B (en) * | 2018-06-14 | 2020-01-21 | 佛山东鹏洁具股份有限公司 | Sanitary ceramic powder punch forming process and punch forming die used by same |
| CN108724436B (en) * | 2018-06-14 | 2020-01-21 | 佛山东鹏洁具股份有限公司 | Sanitary ceramic punch forming process |
| CN108789774B (en) * | 2018-06-14 | 2020-01-21 | 佛山东鹏洁具股份有限公司 | Die assembly for stamping and forming sanitary ceramics and stamping system using die assembly |
| CN110744685B (en) * | 2019-11-19 | 2024-08-30 | 佛山市东鹏陶瓷有限公司 | Ceramic brick mould and adobe made of same |
| CN111268908A (en) * | 2020-03-02 | 2020-06-12 | 福建省德化县昱晟工艺品有限责任公司 | Preparation method of low-temperature peacock green glaze porcelain |
| CN113400442B (en) * | 2021-06-23 | 2022-10-14 | 佛山市蓝之鲸科技有限公司 | Method for manufacturing glazed tile by using solid powder |
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Effective date of registration: 20170414 Address after: 528031 Chancheng, Foshan District, Jiangwan, No. three, No., layer 8, layer two Applicant after: Foshan Dongpeng Ceramic Co., Ltd. Applicant after: Guangdong Dongpeng Holdings Co., Ltd. Applicant after: Zibo Kapuer Ceramics Co., Ltd. Applicant after: Donghua Foshan New Material Co., Ltd. Address before: 528031 Chancheng, Foshan District, Jiangwan, No. three, No., layer 8, layer two Applicant before: Foshan Dongpeng Ceramic Co., Ltd. Applicant before: Guangdong Dongpeng Holdings Co., Ltd. Applicant before: Zibo Kapuer Ceramics Co., Ltd. Applicant before: Foshan Huashengchang Ceramic Co., Ltd. Applicant before: Guangdong Dongpeng Ceramic Co., Ltd. |
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