CN106607547A - Method for manufacturing automobile calipers by using precoated sand and automobile calipers - Google Patents
Method for manufacturing automobile calipers by using precoated sand and automobile calipers Download PDFInfo
- Publication number
- CN106607547A CN106607547A CN201610773826.0A CN201610773826A CN106607547A CN 106607547 A CN106607547 A CN 106607547A CN 201610773826 A CN201610773826 A CN 201610773826A CN 106607547 A CN106607547 A CN 106607547A
- Authority
- CN
- China
- Prior art keywords
- sand
- parts
- weight
- precoated
- amount
- 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
- 239000004576 sand Substances 0.000 title claims abstract description 124
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 165
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 17
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005011 phenolic resin Substances 0.000 claims abstract description 17
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 16
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 16
- 239000008116 calcium stearate Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 6
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims abstract description 5
- 239000006004 Quartz sand Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 229910052845 zircon Inorganic materials 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 229960004011 methenamine Drugs 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a method for manufacturing automobile calipers by using precoated sand and automobile calipers. The method comprises the following steps: preparing the precoated sand: heating crude sand, and mixing the crude sand with phenolic resin, water, a methenamine solution, calcium stearate and silicon dioxide to form the precoated sand N; carrying out sand jetting: after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine to jet the precoated sand N into a calipers mold under the sand jetting pressure, and obtaining a sand shell after the sand jetting is completed; and carrying out molding by casting: injecting iron liquid into the sand shell, and cooling to obtain the automobile calipers. The worthy automobile calipers are high in wear resistance and mechanical strength; furthermore, the method for manufacturing the automobile calipers is simple; and no secondary pollution is caused in the manufacturing process, so that the method is economical and environment-friendly.
Description
Technical Field
The invention relates to the field of precoated sand casting, in particular to a method for preparing automobile calipers by using precoated sand and the automobile calipers.
Background
The precoated sand mainly adopts high-quality selected natural quartz sand as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent as raw materials. According to different technical requirements of users, the proportion is properly adjusted in the aspects of curing speed, stripping property, fluidity, collapsibility, casting surface finish, storage and the like, and the material is one of the best molding materials for automobiles, tractors, hydraulic parts and the like. Brake calipers for automobiles are caliper devices having functions of decelerating, stopping, or maintaining a stopped state of a moving wheel, and the wear resistance and mechanical strength thereof are important factors affecting the performance thereof.
Therefore, the preparation of the automobile calipers with high mechanical strength and wear resistance by using the precoated sand is a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for preparing automobile calipers by using precoated sand and the automobile calipers, and the obtained automobile calipers have excellent mechanical strength and wear resistance.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method of preparing an automotive caliper using precoated sand, wherein the method comprises:
(1) preparing precoated sand: heating raw sand, and mixing the raw sand with phenolic resin, water, urotropine solution, calcium stearate and silicon dioxide to form precoated sand N;
(2) sand shooting: after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure, and obtaining a sand shell after sand shooting is finished;
(3) and (3) casting molding: pouring molten iron into the sand shell, and cooling to obtain the automobile calipers; wherein,
the usage amount of the phenolic resin is 10-25 parts by weight, the usage amount of the water is 2-9 parts by weight, the usage amount of the urotropine solution is 3-10 parts by weight, the usage amount of the calcium stearate is 2-8 parts by weight, and the usage amount of the silicon dioxide is 2-5 parts by weight relative to 100 parts by weight of the raw sand.
Preferably, the phenolic resin is used in an amount of 15-20 parts by weight, the water is used in an amount of 4-6 parts by weight, the urotropine solution is used in an amount of 5-8 parts by weight, the calcium stearate is used in an amount of 4-6 parts by weight, and the silica is used in an amount of 3.5-4 parts by weight, based on 100 parts by weight of the raw sand.
Preferably, the raw sand is one or more of quartz sand, silica sand and zircon sand.
Preferably, the particle size of the raw sand is 40-100 μm.
Preferably, the sand shooting pressure in the step (2) is 4-8MPa, and the sand shooting time is 4-9 s.
Preferably, the caliper mold in step (2) is heated to 200-220 ℃ before use.
Preferably, the cooling in step (3) is performed by air cooling.
Preferably, in the step (1), the raw sand is heated, and the heating temperature is 150-180 ℃.
The invention also provides the automobile caliper, wherein the automobile caliper is prepared by the method.
The beneficial effect of adopting above technical scheme is: the invention provides a method for preparing automobile calipers by using precoated sand and the automobile calipers, wherein the method comprises the following steps: preparing precoated sand: heating raw sand, and mixing the raw sand with phenolic resin, water, urotropine solution, calcium stearate and silicon dioxide to form precoated sand N; sand shooting: after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure, and obtaining a sand shell after sand shooting is finished; and (3) casting molding: pouring molten iron into the sand shell, and cooling to obtain the automobile calipers; the prepared automobile caliper has excellent wear resistance and mechanical strength, and the preparation method of the automobile caliper is simple, has no secondary pollution in the manufacturing process, and is economic and environment-friendly.
Detailed Description
Preferred embodiments of the present invention are described in detail below.
The specific implementation mode of the invention is as follows:
example 1
Heating 1000g of quartz sand (with the particle size of 40 mu m) to 150 ℃, and mixing with 150g of phenolic resin, 40g of water, 50g of urotropine solution, 40g of calcium stearate and 35g of silicon dioxide to form precoated sand N; after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure (the sand shooting pressure is 4MPa, and the sand shooting time is 4 s), and obtaining a sand shell after sand shooting is finished; and pouring molten iron into the sand shell, and cooling to obtain the automobile caliper.
Example 2
Heating 1000g of quartz sand (the particle size is 100 mu m) to 180 ℃, and mixing with 200g of phenolic resin, 60g of water, 80g of urotropine solution, 60g of calcium stearate and 40g of silicon dioxide to form precoated sand N; after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure (the sand shooting pressure is 8MPa, and the sand shooting time is 9 s), and obtaining a sand shell after sand shooting is finished; and pouring molten iron into the sand shell, and cooling to obtain the automobile caliper.
Example 3
Heating 1000g of quartz sand (with the particle size of 60 mu m) to 160 ℃, and mixing with 180g of phenolic resin, 50g of water, 60g of urotropine solution, 50g of calcium stearate and 38g of silicon dioxide to form precoated sand N; after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure (the sand shooting pressure is 6MPa, and the sand shooting time is 6 s), and obtaining a sand shell after sand shooting is finished; and pouring molten iron into the sand shell, and cooling to obtain the automobile caliper.
Example 4
The preparation was carried out according to the method of example 1, except that the phenolic resin was used in an amount of 100g, the water was used in an amount of 20g, the urotropin solution was used in an amount of 30g, the calcium stearate was used in an amount of 20g, and the silica was used in an amount of 20g, relative to 1000g of the raw sand.
Example 5
The preparation was carried out according to the method of example 1, except that the phenolic resin was used in an amount of 250g, the water was used in an amount of 90g, the urotropin solution was used in an amount of 100g, the calcium stearate was used in an amount of 80g, and the silica was used in an amount of 50g, relative to 1000g of the raw sand.
Comparative example 1
The preparation was carried out according to the method of example 1, except that the phenolic resin was used in an amount of 80g, the water was used in an amount of 10g, the urotropin solution was used in an amount of 20g, the calcium stearate was used in an amount of 10g, and the silica was used in an amount of 15g, relative to 1000g of the raw sand.
Comparative example 2
The preparation was carried out according to the method of example 1, except that the amount of the phenolic resin was 270g, the amount of the water was 100g, the amount of the urotropin solution was 120g, the amount of the calcium stearate was 90g and the amount of the silica was 60g, relative to 1000g of the raw sand.
TABLE 1
| Example numbering | Tensile Strength (MPa) | Yield strength (MPa) |
| Example 1 | 950 | 650 |
| Example 2 | 965 | 660 |
| Example 3 | 945 | 645 |
| Example 4 | 920 | 610 |
| Example 5 | 910 | 580 |
| Comparative example 1 | 525 | 320 |
| Comparative example 2 | 530 | 360 |
The invention provides a method for preparing automobile calipers by using precoated sand and the automobile calipers, wherein the method comprises the following steps: preparing precoated sand: heating raw sand, and mixing the raw sand with phenolic resin, water, urotropine solution, calcium stearate and silicon dioxide to form precoated sand N; sand shooting: after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure, and obtaining a sand shell after sand shooting is finished; and (3) casting molding: pouring molten iron into the sand shell, and cooling to obtain the automobile calipers; the prepared automobile caliper has excellent wear resistance and mechanical strength, and the preparation method of the automobile caliper is simple, has no secondary pollution in the manufacturing process, and is economic and environment-friendly.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. A method of making an automotive caliper from precoated sand, the method comprising:
(1) preparing precoated sand: heating raw sand, and mixing the raw sand with phenolic resin, water, urotropine solution, calcium stearate and silicon dioxide to form precoated sand N;
(2) sand shooting: after the precoated sand N is cooled, adding the precoated sand N into a core shooting machine, shooting the precoated sand N into a caliper mold through sand shooting pressure, and obtaining a sand shell after sand shooting is finished;
(3) and (3) casting molding: pouring molten iron into the sand shell, and cooling to obtain the automobile calipers; wherein,
the usage amount of the phenolic resin is 10-25 parts by weight, the usage amount of the water is 2-9 parts by weight, the usage amount of the urotropine solution is 3-10 parts by weight, the usage amount of the calcium stearate is 2-8 parts by weight, and the usage amount of the silicon dioxide is 2-5 parts by weight relative to 100 parts by weight of the raw sand.
2. The method according to claim 1, wherein the phenolic resin is used in an amount of 15-20 parts by weight, the water is used in an amount of 4-6 parts by weight, the urotropin solution is used in an amount of 5-8 parts by weight, the calcium stearate is used in an amount of 4-6 parts by weight, and the silica is used in an amount of 3.5-4 parts by weight, relative to 100 parts by weight of the raw sand.
3. The method of claim 1, wherein the raw sand is one or more of quartz sand, silica sand, and zircon sand.
4. The method according to claim 1, wherein the raw sand has a particle size of 40-100 μm.
5. The method according to claim 1, wherein the sand shooting pressure in the step (2) is 4-8MPa, and the sand shooting time is 4-9 s.
6. The method as claimed in claim 1, wherein the caliper mold in step (2) is heated to 200-220 ℃ before use.
7. The method of claim 1, wherein the cooling in step (3) is air cooled.
8. The method as claimed in claim 1, wherein the step (1) heats the crude sand at a temperature of 150 ℃ to 180 ℃.
9. Automotive caliper, characterized in that it is obtained by the process according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773826.0A CN106607547A (en) | 2016-08-31 | 2016-08-31 | Method for manufacturing automobile calipers by using precoated sand and automobile calipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773826.0A CN106607547A (en) | 2016-08-31 | 2016-08-31 | Method for manufacturing automobile calipers by using precoated sand and automobile calipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106607547A true CN106607547A (en) | 2017-05-03 |
Family
ID=58614925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773826.0A Pending CN106607547A (en) | 2016-08-31 | 2016-08-31 | Method for manufacturing automobile calipers by using precoated sand and automobile calipers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106607547A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015227A (en) * | 2017-12-15 | 2018-05-11 | 台州市陈氏铜业有限公司 | Copper alloy casting process |
| CN109746383A (en) * | 2019-03-22 | 2019-05-14 | 十堰长江造型材料有限公司 | A kind of steel-casting precoated sand process for making shell |
| CN109943768A (en) * | 2019-05-09 | 2019-06-28 | 南京正领汽车部件有限公司 | Lightweight automobile clamp production technology |
-
2016
- 2016-08-31 CN CN201610773826.0A patent/CN106607547A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015227A (en) * | 2017-12-15 | 2018-05-11 | 台州市陈氏铜业有限公司 | Copper alloy casting process |
| CN109746383A (en) * | 2019-03-22 | 2019-05-14 | 十堰长江造型材料有限公司 | A kind of steel-casting precoated sand process for making shell |
| CN109943768A (en) * | 2019-05-09 | 2019-06-28 | 南京正领汽车部件有限公司 | Lightweight automobile clamp production technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106607547A (en) | Method for manufacturing automobile calipers by using precoated sand and automobile calipers | |
| CN102921902B (en) | Composite shaping technique method of iron pattern coated sand and iron type core assembly | |
| CN103920852A (en) | Precision casting process of large casting | |
| CN101927318A (en) | High strength precoated sand | |
| CN101342573A (en) | Vacuum negative pressure real type phenolic sand molding lost foam casting method | |
| CN107699741A (en) | A kind of method of lost foam casting alloy-steel casting | |
| CN107096871A (en) | Accelerate precoated sand of cast member shaping speed and preparation method thereof | |
| CN106626195A (en) | Machining method for outer cover one-mold multi-cavity molding of antenna cover and molding device thereof | |
| CN105750493A (en) | Non-chiller ductile iron non-riser casting technology | |
| CN104690226A (en) | Evanescent mould casting process having high size precision of casting | |
| CN103567389A (en) | Technology for manufacturing mold core by using steel molding sand | |
| CN102861870A (en) | Sand mould and process for using sand mould to produce steel casting piece | |
| CN107716852B (en) | ABS gear ring cold core box and core manufacturing method thereof | |
| CN106077424A (en) | A kind of new instrument casting resin sand | |
| CN106393522B (en) | Silica gel turns over glass reinforced plastic forming method processed | |
| CN105414455A (en) | High-thermal-stability modified alkaline phenolic resin self-hardening sand for pump valve casting and preparation method of high-thermal-stability modified alkaline phenolic resin self-hardening sand | |
| CN101787202B (en) | Novel carbon fiber composite finished product and preparation method thereof | |
| CN103586794A (en) | Manufacturing method for heavy-load grinding wheel | |
| CN106751450A (en) | A kind of water-soluble core material | |
| CN106607545A (en) | Oil pressure calipers and preparation method thereof | |
| CN105364009A (en) | Evaporative pattern casting process realizing good mechanical property for castings | |
| CN208214245U (en) | It is a kind of for producing the resin-coated sand shell mould process units of container angle | |
| CN102320090A (en) | The dull and stereotyped preparation method of a kind of phenolic resins pour mass | |
| CN105364008A (en) | Evaporative pattern casting process | |
| CN105820528A (en) | Method for preparing unsaturated polyester composite board from waste needle-punched nonwoven fabrics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170503 |
|
| WD01 | Invention patent application deemed withdrawn after publication |