CN106890934A - Yoke casting method - Google Patents
Yoke casting method Download PDFInfo
- Publication number
- CN106890934A CN106890934A CN201510945155.7A CN201510945155A CN106890934A CN 106890934 A CN106890934 A CN 106890934A CN 201510945155 A CN201510945155 A CN 201510945155A CN 106890934 A CN106890934 A CN 106890934A
- Authority
- CN
- China
- Prior art keywords
- casting
- liquid binder
- colloidal liquid
- casting method
- yoke
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 239000011819 refractory material Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 4
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 244000035744 Hura crepitans Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0036—Casting in, on, or around objects which form part of the product gears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
- B22D19/085—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal of anti-frictional metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of yoke casting method.The present invention is that ceramic wear-resisting particle is replaced into refractory material, module surface is coated in the liquid coating that binding agent is made into, it is made pattern, it is molten to lose fusible pattern, alloy liquid is injected, as the cooled and solidified of the alloy liquid of injection forms casting, ceramic wear-resisting particle is introduced into cast(ing) surface, it is subsequently heat-treated, cast(ing) surface is increased by one layer of pottery hardened layer, improve the case hardness of casting.Using casting method of the invention, casting is once-forming, any surface finish, accurate size, few cutting or the purpose without cutting can be reached, and surface has pottery hardened layer, hardness is greatly improved, therefore needs the alloy-steel casting of high surfaces hardness process of this invention is particularly practical for preparing yoke etc..
Description
Technical field
The present invention relates to a kind of casting method, specifically, it is related to a kind of yoke casting method.
Background technology
Yoke is usually to use high strength steel, is first processed as yoke base, then be machined, the processing of yoke shape, heat treatment, the technical process such as finishing are made,
Process cycle is long, and processing technology is complicated, and machining difficulty is big.And requiring that obtained yoke torsional fatigue strength is high, case hardness is high, wearability
It is good.
Casting is one of main method of manufactured parts blank, is suitable efficiently preparation method, particularly with some brittle metals or alloy material
Part, foundry engieering is even more conventional processing method, and its forming principle is：METAL HEATING PROCESS is melted, mobility is made it have, is then poured into
Have in effigurate casting mold die cavity, die cavity is full of in the presence of gravity or external force, cool down and be frozen into casting or part.
Traditional casting technique generally comprises following steps：A, the apperance that molding and core making is made according to the shape of product；B, apperance is put into
In sandbox, mould assembling after back-up sand, consolidation, molding is carried out；C, the liquid metal after fusing is poured into the die cavity in sandbox；D, knockout are clear
Reason casting.
At present, traditional casting technique is required to substantial amounts of people in the preparation of molding sand, in the manufacturing process of sand mold and in the peeling casting in later stage
Power, labour intensity is larger, wastes the human resources of a large amount of preciousnesses, while cast each product to be required for repeating above-mentioned operation, low production efficiency.
Based on drawbacks described above, the characteristics of the present invention is for yoke, there is provided a kind of improved yoke casting method.
The content of the invention
Can be used for the casting method of yoke it is an object of the invention to provide a kind of.
Casting method of the present invention is improved investment casting method, and model casting is also known as " lost-wax casting ".This method is to note easy fusible pattern material
Enter die mould (in mould), be made fusible pattern, it is assembled into module, then apply the liquid that application refractory material and binding agent are made on module surface
Coating, then fire-resistant sand grains are spread on coating, then it is allowed to harden shelling.It is so repeated multiple times, just form multilayer shell.Shell is heated, is made
Fusible pattern is melted out, and after housing is fired, liquid alloy is poured into thereto, after solidification through cleaning etc. operation be obtain casting.
High based on the requirement to yoke, i.e. torsional fatigue strength, case hardness is high, and wearability is good, of the invention using ceramic wear-resisting particle as fire proofed wood
Material, and the liquid coating that binding agent is made into is coated in module surface, is made pattern, injects alloy liquid, with the cooling of the alloy liquid of injection
Solidification forms casting, and ceramic wear-resisting particle is introduced into cast(ing) surface, subsequently heat-treated, cast(ing) surface is increased by one layer of pottery hardened layer, improves casting
The case hardness of part.
Specifically, described casting method is invented, is comprised the following steps：
1) in the slurry for constituting preforming fusible model immersion ceramic particle and colloidal liquid binder, coating is formed on the model, is done
It is dry；
2) to step 1) the coating on the slurry that constitutes of sprayable refractory particle or coating refractory material granule and colloidal liquid binder,
Dry；
3) melt and lose fusible pattern, Baking；
4) alloyage material, alloy material melting, cast；
5) clear up：The processing step such as including shelling, removal dead head, cleaning, inspection, soldering；
6) heat treating castings.
The colloidal liquid binder is one or two mixture of polyacrylamide and polyacrylate；
The weight ratio of ceramic particle and colloidal liquid binder is 1 in the slurry that ceramic particle and colloidal liquid binder are constituted:0.1-10；It is preferred that
1:0.3-1。
Using model casting, casting is once-forming, any surface finish, accurate size, can reach few cutting or the purpose without cutting, and surface has pottery
Porcelain hardened layer, hardness is greatly improved, and being particularly suitable for preparing gear etc. needs the alloy-steel casting of high surfaces hardness.
Specific embodiment
With reference to specific embodiment, the present invention is described further.If not being otherwise indicated, the raw material used by the present invention is purchased in market.
Embodiment 1
According to following steps, yoke sample is cast,：
1) in the slurry for constituting preforming fusible model immersion ceramic particle and colloidal liquid binder, coating is formed on the model whereby, is sprayed
Mist is dried；The ceramic particle can be carborundum, silicon nitride or tungsten carbide, and the size of particle is
20-50μm；The colloidal liquid binder is polyacrylamide；In the slurry that ceramic particle and colloidal liquid binder are constituted ceramic particle and
The weight ratio of colloidal liquid binder is 1:0.1；
Wherein, step 1) repeat 3 times；
2) to step 1) the coating on the slurry that constitutes of coating refractory material granule and colloidal liquid binder, spray drying；Wherein,
Described refractory material is silica；The fire resisting material particle forms the weight ratio of material with gelling
100:5；
Wherein, step 2) repeat 2 times；
3) 200 DEG C of insulations, 1 hour molten mistake fusible pattern, Baking；；
4) alloyage material, chemical composition is shown in Table 1, and alloy material utilizes vacuum induction melting, fusion temperature：
1580 DEG C, pouring temperature is 1530 DEG C；
5) clear up：The processing step such as including shelling, removal dead head, cleaning, inspection, soldering；
6) heat treating castings：860 DEG C insulation 1 hour after oil quenching, 500 DEG C insulation 1 hour after furnace cooling.
Claims (2)
1. yoke casting method, it is characterised in that comprise the following steps：
1) in the slurry for constituting preforming fusible model immersion ceramic particle and colloidal liquid binder, coating is formed on the model whereby, is done
It is dry；
2) to step 1) the coating on the slurry that constitutes of sprayable refractory particle or coating refractory material granule and colloidal liquid binder, dry；
3) melt and lose fusible pattern, Baking；
4) alloyage material, alloy material melting, cast；
5) clear up：The processing step such as including shelling, removal dead head, cleaning, inspection, soldering；
6) heat treating castings；The colloidal liquid binder is one or two mixture of polyacrylamide and polyacrylate.
2. gear casting method according to claim 1, it is characterised in that ceramics in the slurry that ceramic particle and colloidal liquid binder are constituted
The weight ratio of grain and colloidal liquid binder is 1:0.1-10；It is preferred that 1:0.3-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945155.7A CN106890934A (en) | 2015-12-17 | 2015-12-17 | Yoke casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945155.7A CN106890934A (en) | 2015-12-17 | 2015-12-17 | Yoke casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106890934A true CN106890934A (en) | 2017-06-27 |
Family
ID=59189229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510945155.7A Pending CN106890934A (en) | 2015-12-17 | 2015-12-17 | Yoke casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106890934A (en) |
-
2015
- 2015-12-17 CN CN201510945155.7A patent/CN106890934A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102861873B (en) | Casting method of gear | |
| CN109759543B (en) | Cast copper sculpture casting production method | |
| WO2017114064A1 (en) | Method for preparing environmentally friendly fine casting mould shell | |
| CN103990761A (en) | Manufacturing method of hollow turbine blade provided with impact hole structure | |
| CN102248124B (en) | Technology for molding wax mould of single cast | |
| CN104148583A (en) | Investment casting method | |
| CN108015231A (en) | A kind of investment precision casting technology | |
| CN109365749A (en) | Precision-investment manufactures vacuum-thermoform production technology | |
| CN101288896A (en) | Gypsum cast material for melt mould casting | |
| CN103266325A (en) | Spotted copper ware manufacturing technology | |
| US3441078A (en) | Method and apparatus for improving grain structures and soundness of castings | |
| CN107695295A (en) | A kind of casting processing method of fusible pattern | |
| CN110640085A (en) | Investment casting process for hollow casting | |
| RU2743439C1 (en) | Cast multilayer shell mold | |
| RU2314891C1 (en) | Mold making method for casting with use of investment patterns | |
| CN1394706A (en) | Core material for making core of pouring forming process and method for making core by using said core material | |
| CN104226898A (en) | Investment casting method for bucket tooth | |
| CN108188345B (en) | Gear ring forming method | |
| CN106890934A (en) | Yoke casting method | |
| CN106734906A (en) | Yoke casting method | |
| CN103357819A (en) | Bucket tooth investment casting method | |
| CN110976770A (en) | Method for eliminating shrinkage cavity in precision casting based on chilling block | |
| CN108145082A (en) | Yoke casting method | |
| CN104259390B (en) | A kind of casting method of car engine cover | |
| CN103394641A (en) | Yoke casting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |
|
| WD01 | Invention patent application deemed withdrawn after publication |