CN106001389A - Environment-friendly sodium silicate-bonded sand for instrument casting - Google Patents
Environment-friendly sodium silicate-bonded sand for instrument casting Download PDFInfo
- Publication number
- CN106001389A CN106001389A CN201610609969.8A CN201610609969A CN106001389A CN 106001389 A CN106001389 A CN 106001389A CN 201610609969 A CN201610609969 A CN 201610609969A CN 106001389 A CN106001389 A CN 106001389A
- Authority
- CN
- China
- Prior art keywords
- parts
- sand
- casting
- instrument
- sodium silicate
- 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 47
- 238000005266 casting Methods 0.000 title claims abstract description 33
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title abstract 5
- 229910052708 sodium Inorganic materials 0.000 title abstract 5
- 239000011734 sodium Substances 0.000 title abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 80
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 13
- 229920001661 Chitosan Polymers 0.000 claims abstract description 13
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 13
- 239000004280 Sodium formate Substances 0.000 claims abstract description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 13
- 229910021538 borax Inorganic materials 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 13
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 13
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims abstract description 13
- 235000019254 sodium formate Nutrition 0.000 claims abstract description 13
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 13
- 235000019353 potassium silicate Nutrition 0.000 claims description 30
- 230000007613 environmental effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 12
- 239000004328 sodium tetraborate Substances 0.000 claims description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 abstract description 2
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 2
- 239000004113 Sepiolite Substances 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 239000012778 molding material Substances 0.000 abstract 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003110 molding sand Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
-
- 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
- B22C1/18—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 inorganic agents
- B22C1/186—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 inorganic agents contaming ammonium or metal silicates, silica sols
- B22C1/188—Alkali metal silicates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention relates to environment-friendly sodium silicate-bonded sand for instrument casting. The environment-friendly sodium silicate-bonded sand comprises the following raw materials by weight part: 100 parts of silica sand base stocks, 1-6 parts of sodium silicate, 0.2-1 part of sodium borate, 5-10 parts of gypsum powder, 2-5 parts of kaolin, 1-5 parts of sepiolite, 1-2 parts of sodium formate, 3-6 parts of lignin sulfonate fibers and 1-2 parts of chitosan. The environment-friendly sodium silicate-bonded sand for instrument casting provided by the invention has the advantages of high strength, small dimensional deviation, excellent collapsibility and less energy consumption, has obvious economic benefit and social benefit and is known as an environment-friendly molding material. The sodium silicate-bonded sand provided by the invention can be used for casting various sand instrument castings and the surface quality and size accuracy of the castings are higher.
Description
Technical field
The present invention relates to a kind of moulding sand for casting technical field, be specifically related to a kind of instrument casting feature of environmental protection water-glass sand.
Background technology
Water-glass sand is the one of molding sand, and molding sand effect in Foundry Production is particularly important, and the casting wasted product caused because of the poor quality of molding sand accounts for the 30～50% of the total rejection number of foundry goods.Foundry Production generally requirement to molding sand is: have higher intensity and heat stability, to bear the effect of various external force and high temperature；The ability that good mobility, i.e. molding sand are mutually shifted between sand grains under external force or action of gravity own；Certain plasticity, i.e. molding sand deform under external force, can keep the ability of the shape given after external force is removed；Preferably breathability, i.e. molding sand hole are through the ability of gas；High knockability, also known as collapsibility, i.e. after casting solidification, whether molding sand is easily destroyed, if the performance easily removed from foundry goods.
Casting sand used is required higher by instrument and equipment, various different casting flaw is often there is in existing molding sand casting apparatus in foundry production, such as crackle, pore, sand holes, shrinkage cavity etc., have impact on the serviceability of molding sand casting apparatus, and the caking property between the generation of these defects and foundry goods and casting sand, detachment is relevant, existing casting sand serviceability is poor, easily produce bonding with foundry goods, foundry goods is caused to be not easily stripped, and cast breathability, plasticity and mobility are bad, thus cause cast(ing) surface coarse, make Mechanical processing of casting percent defective higher；The molding sand feature of environmental protection of casting is poor, relatively costly, limits the development of casting sand to a certain extent.
Summary of the invention
Not enough for prior art, the invention provides the instrument sodium silicate sand used for casting that a kind of high-performance, the feature of environmental protection are good.
The present invention solves the technical scheme of above-mentioned technical problem employing: a kind of instrument casting feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 1 ~ 6 part, Borax 0.2 ~ 1 part, Gypsum Fibrosum powder 5 ~ 10 parts, Kaolin 2 ~ 5 parts, meerschaum 1 ~ 5 part, sodium formate 1 ~ 2 part, lignosulfonate fiber 3 ~ 6 parts, chitosan 1 ~ 2 part.
Further, described a kind of instrument casting feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 4 parts, Borax 0.6 part, Gypsum Fibrosum powder 7 parts, Kaolin 4 parts, meerschaum 3 parts, sodium formate 1.5 parts, lignosulfonate fiber 5 parts, chitosan 1.5 parts.
Further, described a kind of instrument casting feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 1 part, Borax 0.2 part, Gypsum Fibrosum powder 5 parts, Kaolin 2 parts, meerschaum 1 part, sodium formate 1 part, lignosulfonate fiber 3 parts, chitosan 1 part.
Further, described a kind of instrument casting feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 6 parts, Borax 1 part, Gypsum Fibrosum powder 10 parts, Kaolin 5 parts, meerschaum 5 parts, sodium formate 2 parts, lignosulfonate fiber 6 parts, chitosan 2 parts.
Further, described silica sand base material SiO2Content is more than or equal to 99%, Fe2O3Content is less than or equal to 0.02%.
Compared with prior art, what the present invention possessed has the beneficial effect that
A kind of instrument casting feature of environmental protection water-glass sand sand mold intensity that the present invention prepares is high, dimensional discrepancy is little, collapsibility good, energy resource consumption is few, has significant economic benefit, social benefit, is a kind of generally acknowledged environmentally friendly Modeling Material；The water-glass sand of the present invention can be used for the production casting of various molding sand instrument foundry goods, and the surface quality of foundry goods and dimensional accuracy are high.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1: a kind of instrument casting uses feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 4 parts, Borax 0.6 part, Gypsum Fibrosum powder 7 parts, Kaolin 4 parts, meerschaum 3 parts, sodium formate 1.5 parts, lignosulfonate fiber 5 parts, chitosan 1.5 parts.
Embodiment 2: a kind of instrument casting uses feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 1 part, Borax 0.2 part, Gypsum Fibrosum powder 5 parts, Kaolin 2 parts, meerschaum 1 part, sodium formate 1 part, lignosulfonate fiber 3 parts, chitosan 1 part.
Embodiment 3: a kind of instrument casting uses feature of environmental protection water-glass sand, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 6 parts, Borax 1 part, Gypsum Fibrosum powder 10 parts, Kaolin 5 parts, meerschaum 5 parts, sodium formate 2 parts, lignosulfonate fiber 6 parts, chitosan 2 parts.
Silica sand base material SiO described in above-described embodiment 1-32Content is more than or equal to 99%, Fe2O3Content is less than or equal to 0.02%.
Concrete, in use, it is on the waiting list raw material by described parts by weight, is blended in described silica sand base material, waterglass, Borax, Gypsum Fibrosum powder, Kaolin, meerschaum, sodium formate, lignosulfonate fiber and chitosan are added continuous muller, obtains the water-glass sand of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement and modification, these improve and modify and also should be regarded as protection scope of the present invention.
Claims (5)
1. feature of environmental protection water-glass sand is used in an instrument casting, it is characterized in that, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 1 ~ 6 part, Borax 0.2 ~ 1 part, Gypsum Fibrosum powder 5 ~ 10 parts, Kaolin 2 ~ 5 parts, meerschaum 1 ~ 5 part, sodium formate 1 ~ 2 part, lignosulfonate fiber 3 ~ 6 parts, chitosan 1 ~ 2 part.
A kind of instrument casting feature of environmental protection water-glass sand the most according to claim 1, it is characterized in that, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 4 parts, Borax 0.6 part, Gypsum Fibrosum powder 7 parts, Kaolin 4 parts, meerschaum 3 parts, sodium formate 1.5 parts, lignosulfonate fiber 5 parts, chitosan 1.5 parts.
A kind of instrument casting feature of environmental protection water-glass sand the most according to claim 1, it is characterized in that, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 6 parts, Borax 1 part, Gypsum Fibrosum powder 10 parts, Kaolin 5 parts, meerschaum 5 parts, sodium formate 2 parts, lignosulfonate fiber 6 parts, chitosan 2 parts.
A kind of instrument casting feature of environmental protection water-glass sand the most according to claim 1, it is characterized in that, including the raw material of following parts by weight: silica sand base material 100 parts, waterglass 6 parts, Borax 1 part, Gypsum Fibrosum powder 10 parts, Kaolin 5 parts, meerschaum 5 parts, sodium formate 2 parts, lignosulfonate fiber 6 parts, chitosan 2 parts.
5. according to a kind of instrument casting feature of environmental protection water-glass sand described in any one of claim 1-4, it is characterised in that: described silica sand base material SiO2Content is more than or equal to 99%, Fe2O3Content is less than or equal to 0.02%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609969.8A CN106001389A (en) | 2016-07-29 | 2016-07-29 | Environment-friendly sodium silicate-bonded sand for instrument casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609969.8A CN106001389A (en) | 2016-07-29 | 2016-07-29 | Environment-friendly sodium silicate-bonded sand for instrument casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001389A true CN106001389A (en) | 2016-10-12 |
Family
ID=57115554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610609969.8A Pending CN106001389A (en) | 2016-07-29 | 2016-07-29 | Environment-friendly sodium silicate-bonded sand for instrument casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186170A (en) * | 2017-05-17 | 2017-09-22 | 安徽巨泰机械制造有限公司 | A kind of agricultural machinery metal casting sand casting process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN103495692A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Mud core moulding sand for casting and preparation method thereof |
| CN103567356A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Sodium silicate sand with high wet-compressive strength and preparation method thereof |
-
2016
- 2016-07-29 CN CN201610609969.8A patent/CN106001389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814460A (en) * | 2012-08-20 | 2012-12-12 | 合肥江淮铸造有限责任公司 | Casting molding sand and preparation method thereof |
| CN103567356A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Sodium silicate sand with high wet-compressive strength and preparation method thereof |
| CN103495692A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Mud core moulding sand for casting and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186170A (en) * | 2017-05-17 | 2017-09-22 | 安徽巨泰机械制造有限公司 | A kind of agricultural machinery metal casting sand casting process |
| CN107186170B (en) * | 2017-05-17 | 2019-01-25 | 安徽巨泰机械制造有限公司 | A kind of sand casting process of metal casting for agricultural machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |