CN103182470A - Mold manufacturing process in investment casting - Google Patents
Mold manufacturing process in investment casting Download PDFInfo
- Publication number
- CN103182470A CN103182470A CN2013101149019A CN201310114901A CN103182470A CN 103182470 A CN103182470 A CN 103182470A CN 2013101149019 A CN2013101149019 A CN 2013101149019A CN 201310114901 A CN201310114901 A CN 201310114901A CN 103182470 A CN103182470 A CN 103182470A
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- CN
- China
- Prior art keywords
- wax
- casting
- slip
- mould
- wax pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000004519 manufacturing process Methods 0.000 title claims abstract 6
- 238000005495 investment casting Methods 0.000 title abstract 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract 4
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract 4
- 238000005266 casting Methods 0.000 claims 11
- 239000000463 material Substances 0.000 claims 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 235000011837 pasties Nutrition 0.000 claims 3
- 238000003756 stirring Methods 0.000 claims 3
- 238000001816 cooling Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000004576 sand Substances 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 2
- 239000010935 stainless steel Substances 0.000 claims 2
- 235000021355 Stearic acid Nutrition 0.000 claims 1
- 230000036760 body temperature Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 230000001788 irregular Effects 0.000 claims 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 235000019353 potassium silicate Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000008117 stearic acid Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000003915 air pollution Methods 0.000 abstract 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a mold manufacturing process in investment casting. As magnesium chloride is adopted as a hardening agent, no volatile gas exists, so that the air pollution is reduced, and the damage to the physical health of a worker is reduced, and meanwhile, the production cost can also be reduced; and a manufactured and obtained mold wall cavity is smooth in surface and has no hole.
Description
Technical field
The present invention relates to a kind of manufacturing process, specifically casting mold manufacturing process in a kind of model casting is used for making the casting mold that the moulding implements are used.
Background technology
Full form casting process is that motlten metal is poured into casting mold, solidifies the forming method that the back acquisition has the metal blank of definite shape, size and performance.
Make the mould that to make implements of wax, coat mud at wax-pattern then, main component is ammonium chloride, as everyone knows, ammonium chloride volatilizes ammonia easily, a kind of gas of penetrating odor, and the workman works in the environment of thrilling property gas for a long time, it is healthy to influence the workman, the easy respiratory tract aspect disease that gets; In addition, penetrating odor is dispersed in the middle of the air easily, causes air pollution, influences air quality; The wax-pattern quality of making simultaneously directly has influence on the height of later stage casting mold quality.
Summary of the invention
Technical problem to be solved by this invention is: a kind of minimizing air pollution is provided, reduces casting mold manufacturing process in the healthy model casting of infringement workman.
The technical solution used in the present invention is: casting mold manufacturing process in a kind of model casting, comprise the steps, the mould material that one, will prepare is dissolved into liquid, mould feed liquid body temperature degree is set at 80 ℃～95 ℃, remove impurity, in Stainless steel basin, water into the thick stencil plate of 10mm～20mm then, naturally cooling;
Two, with cooled stencil plate, knock (20～50mm) * (20～50mm) irregular fritters;
Three, pour in the stainless steel cask with 80 ℃～95 ℃ aqueous wax water, add the wax stone that has struck in the step 2 again, stir simultaneously, according to the pasty state situation of mould material, wax water treats that pasty state mould material does not have till the particle a little during stirring, during stirring, the lifting Agitator Impeller is in order to beat paste;
Four, the wax material of pasty state is poured in the wax injector, wax injector is incubated in advance at 48 ℃～52 ℃;
Five, before the casting, check earlier mould, brush the thin releasing agent of one deck at mold cavity, assemble mould and carry out casting, casting air pressure remains on 2.5～3.5 kilograms, fills with 3～10 seconds of back pressurize, and cooling and demolding obtains wax pattern;
Six, the wax pattern that obtains is carried out deburring, scrape off slitter edge;
Seven, be coated with in the outer order of wax pattern and coat slurry, sand material and curing agent, described curing agent employing pH value is at 1.4～1.9 magnesium chloride solution;
Eight, wax pattern should immerse gently and be coated with in the slip, slowly rotate after a circle mentions, rotate gently, slip is evenly distributed, and get rid of unnecessary slip, run into blind hole, crack and do not soak the slip place, brush with the writing brush benefit, pick up wax pattern then on the other hand and rotate, simultaneously toward its stucco material, after treating its solid type, immerse in the magnesium chloride solution, after mention; Be coated with slip earlier according to coating, sprinkle the sand material again, coat the magnesium chloride solution order at last so repeatedly more than five times;
Nine, boiler pressure is adjusted to 0.03～0.05 kilogram, dewaxing pond water temperature is heated to 90～98 ℃, the wax pattern in the step 8 is inserted in the dewaxing pond, till wax has all taken off, form the casting mold blank;
Ten, the casting mold blank in the step 9 is dried in the air put more than 10 hours, again the roasting hardened forming.
A kind of wax pattern mould material ratio of described step is that dewax is 7.5: 2.5 than stearic acid.
The slip that is coated with in the described step 8 is mixed with 1 to 1.2～1.4 ratio with 9# silica flour by waterglass.
The invention has the beneficial effects as follows: casting mold manufacturing process in the model casting of the present invention, adopt magnesium chloride as curing agent, there is not escaping gas, reduce air pollution, reduction infringement workman is healthy, can also reduce production costs simultaneously; And it is smooth to make the casting mold inwall mold cavity surface that obtains, the Wu Keng hole.
The specific embodiment
Below be preferred embodiment of the present invention, but therefore do not limit protection scope of the present invention.
The present invention has disclosed casting mold manufacturing process in a kind of model casting, comprises the steps one, the mould material that will prepare is dissolved into liquid, mould feed liquid body temperature degree is set at 80 ℃～95 ℃, remove impurity, in Stainless steel basin, water into the thick stencil plate of 10mm～20mm then, naturally cooling;
Two, with cooled stencil plate, knock (20～50mm) * (20～50mm) irregular fritters;
Three, pour in the stainless steel cask with 80 ℃～95 ℃ aqueous wax water, add the wax stone that has struck in the step 2 again, stir simultaneously, according to the pasty state situation of mould material, wax water treats that pasty state mould material does not have till the particle a little during stirring, during stirring, the lifting Agitator Impeller is in order to beat paste;
Four, the wax material of pasty state is poured in the wax injector, wax injector is incubated in advance at 48 ℃～52 ℃;
Five, before the casting, check earlier mould, brush the thin releasing agent of one deck at mold cavity, assemble mould and carry out casting, casting air pressure remains on 2.5～3.5 kilograms, fills with 3～10 seconds of back pressurize, and cooling and demolding obtains wax pattern;
Six, the wax pattern that obtains is carried out deburring, scrape off slitter edge;
Seven, be coated with in the outer order of wax pattern and coat slurry, sand material and curing agent, described curing agent employing pH value is at 1.4～1.9 magnesium chloride solution;
Eight, wax pattern should immerse gently and be coated with in the slip, slowly rotate after a circle mentions, rotate gently, slip is evenly distributed, and get rid of unnecessary slip, run into blind hole, crack and do not soak the slip place, brush with the writing brush benefit, pick up wax pattern then on the other hand and rotate, simultaneously toward its stucco material, after treating its solid type, immerse in the magnesium chloride solution, after mention; Be coated with slip earlier according to coating, sprinkle the sand material again, coat the magnesium chloride solution order at last so repeatedly more than five times;
Nine, boiler pressure is adjusted to 0.03～0.05 kilogram, dewaxing pond water temperature is heated to 90～98 ℃, the wax pattern in the step 8 is inserted in the dewaxing pond, till wax has all taken off, form the casting mold blank;
Ten, the casting mold blank in the step 9 is dried in the air put more than 10 hours, again the roasting hardened forming.
A kind of wax pattern mould material ratio of described step is that dewax is 7.5: 2.5 than stearic acid.
The slip that is coated with in the described step 8 is mixed with 1 to 1.2～1.4 ratio with 9# silica flour by waterglass.
The present invention adopts magnesium chloride as curing agent, does not have escaping gas, reduces air pollution, and reduction infringement workman is healthy, can also reduce production costs simultaneously; And it is smooth to make the casting mold inwall mold cavity surface that obtains, the Wu Keng hole.
Claims (3)
1. casting mold manufacturing process in the model casting is characterized in that: comprise the steps one, the mould material that will prepare is dissolved into liquid, mould feed liquid body temperature degree is set at 80 ℃～95 ℃, remove impurity, in Stainless steel basin, water into the thick stencil plate of 10mm～20mm then, naturally cooling;
Two, with cooled stencil plate, knock (20～50mm) * (20～50mm) irregular fritters;
Three, pour in the stainless steel cask with 80 ℃～95 ℃ aqueous wax water, add the wax stone that has struck in the step 2 again, stir simultaneously, according to the pasty state situation of mould material, wax water treats that pasty state mould material does not have till the particle a little during stirring, during stirring, the lifting Agitator Impeller is in order to beat paste;
Four, the wax material of pasty state is poured in the wax injector, wax injector is incubated in advance at 48 ℃～52 ℃;
Five, before the casting, check earlier mould, brush the thin releasing agent of one deck at mold cavity, assemble mould and carry out casting, casting air pressure remains on 2.5～3.5 kilograms, fills with 3～10 seconds of back pressurize, and cooling and demolding obtains wax pattern;
Six, the wax pattern that obtains is carried out deburring, scrape off slitter edge;
Seven, be coated with in the outer order of wax pattern and coat slurry, sand material and curing agent, described curing agent employing pH value is at 1.4～1.9 magnesium chloride solution;
Eight, wax pattern should immerse gently and be coated with in the slip, slowly rotate after a circle mentions, rotate gently, slip is evenly distributed, and get rid of unnecessary slip, run into blind hole, crack and do not soak the slip place, brush with the writing brush benefit, pick up wax pattern then on the other hand and rotate, simultaneously toward its stucco material, after treating its solid type, immerse in the magnesium chloride solution, after mention; Be coated with slip earlier according to coating, sprinkle the sand material again, coat the magnesium chloride solution order at last so repeatedly more than five times;
Nine, boiler pressure is adjusted to 0.03～0.05 kilogram, dewaxing pond water temperature is heated to 90～98 ℃, the wax pattern in the step 8 is inserted in the dewaxing pond, till wax has all taken off, form the casting mold blank;
Ten, the casting mold blank in the step 9 is dried in the air put more than 10 hours, again the roasting hardened forming.
2. casting mold manufacturing process in the model casting according to claim 1, it is characterized in that: a kind of wax pattern mould material ratio of described step is that dewax is 7.5: 2.5 than stearic acid.
3. casting mold manufacturing process in the model casting according to claim 1, it is characterized in that: the slip that is coated with in the described step 8 is mixed with 1 to 1.2～1.4 ratio with 9# silica flour by waterglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101149019A CN103182470A (en) | 2013-03-22 | 2013-03-22 | Mold manufacturing process in investment casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101149019A CN103182470A (en) | 2013-03-22 | 2013-03-22 | Mold manufacturing process in investment casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103182470A true CN103182470A (en) | 2013-07-03 |
Family
ID=48674057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101149019A Pending CN103182470A (en) | 2013-03-22 | 2013-03-22 | Mold manufacturing process in investment casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103182470A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439055A (en) * | 2014-11-21 | 2015-03-25 | 柳州金特机械有限公司 | Method for manufacturing precise cast wax mold |
| CN104439053A (en) * | 2014-11-13 | 2015-03-25 | 柳州金特机械有限公司 | Wax mold manufacturing method of melting mold precision-casting bridge shell |
| CN108637174A (en) * | 2018-05-21 | 2018-10-12 | 青岛市平度天鑫铸钢有限公司 | A kind of investment casting method and system |
| CN109175232A (en) * | 2018-11-23 | 2019-01-11 | 安徽应流铸业有限公司 | A kind of thin-walled pressure-bearing casting lost wax casting technique |
| CN109986025A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Stainless steel water pump vane wheel full form casting process |
| CN109986029A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Pump body full form casting process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392007A (en) * | 2002-05-29 | 2003-01-22 | 秦中林 | Cast piece forming and hardening method |
| CN1683099A (en) * | 2005-02-02 | 2005-10-19 | 哈尔滨鑫润精铸工业有限公司 | Fine casting method for super long lower pressure partition guide blade of turbine in stainless steel investment mold |
| EP2305454A1 (en) * | 2008-05-26 | 2011-04-06 | Sony Corporation | Shaping apparatus and shaping method |
-
2013
- 2013-03-22 CN CN2013101149019A patent/CN103182470A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392007A (en) * | 2002-05-29 | 2003-01-22 | 秦中林 | Cast piece forming and hardening method |
| CN1683099A (en) * | 2005-02-02 | 2005-10-19 | 哈尔滨鑫润精铸工业有限公司 | Fine casting method for super long lower pressure partition guide blade of turbine in stainless steel investment mold |
| EP2305454A1 (en) * | 2008-05-26 | 2011-04-06 | Sony Corporation | Shaping apparatus and shaping method |
Non-Patent Citations (1)
| Title |
|---|
| 王胜辉: "抛丸器耐磨件的复合型壳熔模铸造工艺与设备研究", 《万方学位论文》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439053A (en) * | 2014-11-13 | 2015-03-25 | 柳州金特机械有限公司 | Wax mold manufacturing method of melting mold precision-casting bridge shell |
| CN104439055A (en) * | 2014-11-21 | 2015-03-25 | 柳州金特机械有限公司 | Method for manufacturing precise cast wax mold |
| CN109986025A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Stainless steel water pump vane wheel full form casting process |
| CN109986029A (en) * | 2017-12-29 | 2019-07-09 | 宁波鑫象不锈钢制品有限公司 | Pump body full form casting process |
| CN108637174A (en) * | 2018-05-21 | 2018-10-12 | 青岛市平度天鑫铸钢有限公司 | A kind of investment casting method and system |
| CN109175232A (en) * | 2018-11-23 | 2019-01-11 | 安徽应流铸业有限公司 | A kind of thin-walled pressure-bearing casting lost wax casting technique |
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Application publication date: 20130703 |