CN1025659C - core sand binder for casting - Google Patents
core sand binder for casting Download PDFInfo
- Publication number
- CN1025659C CN1025659C CN 91107467 CN91107467A CN1025659C CN 1025659 C CN1025659 C CN 1025659C CN 91107467 CN91107467 CN 91107467 CN 91107467 A CN91107467 A CN 91107467A CN 1025659 C CN1025659 C CN 1025659C
- Authority
- CN
- China
- Prior art keywords
- vegetable oil
- solvent
- oil residue
- oil
- casting
- 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.)
- Expired - Fee Related
Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 17
- 238000005266 casting Methods 0.000 title claims abstract description 11
- 239000004576 sand Substances 0.000 title claims abstract description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 17
- 239000008158 vegetable oil Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 239000011630 iodine Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002085 irritant Substances 0.000 abstract 1
- 231100000021 irritant Toxicity 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229920003319 Araldite® Polymers 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002383 tung oil Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000019774 Rice Bran oil Nutrition 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229920000263 Rubber seed oil Polymers 0.000 description 1
- 235000019485 Safflower oil Nutrition 0.000 description 1
- 235000019486 Sunflower oil Nutrition 0.000 description 1
- 235000019498 Walnut oil Nutrition 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010499 rapseed oil Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000008165 rice bran oil Substances 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000008170 walnut oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a core sand binder for casting, which is characterized in that vegetable oil residue is used as a main raw material, and auxiliary materials such as a certain amount of solvent, acid or alkali are added to prepare the core sand binder. The synthesis process comprises the following steps: heating the vegetable oil residue, acid or alkali and solvent to 150 deg.C, stirring, keeping the temperature for 4 hr, cooling, and storing in a kettle. The invention has the advantages of low price, simple process, no toxic and irritant substances and good casting performance, thereby being an ideal novel adhesive.
Description
The present invention relates to a kind of synthesis technique that utilizes the core sand binder of the foundary industry special use that the vegetable oil oil foot makes, be applicable to that foundary industry manufactures the core of different shape.
The binding agent that uses in foundary industry at present generally can be divided into three types, promptly vegetable oil, close fat and araldite.The technology of vegetable oil binding agent is the most ripe, use with a long history, various process performance index are also comparatively superior, but the primary raw material tung oil of this binding agent, flax wet goods are the valuable raw materials of national defense industry and chemical industry, not only should not be a large amount of be used for foundary industry, and from also not too reasonable economically; The synthetic fat binder primary raw material is the byproduct of chemical industry such as soapmaking, papermaking and PETROLEUM PROCESSING, light industry, but the casting technique performance of existing synthetic fat binder is relatively poor, and intensity is lower, is difficult to guarantee casting quality, and raw material sources are also very short; And araldite costs an arm and a leg, and output also is difficult to satisfy the wilderness demand of foundary industry.
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of cheap, raw material is sufficient, the casting technique performance is better, indivedual more superior novel binders of technical indicator.By retrieval, in CN1044607A, CN1032127A, four patents of GK85101910, GK86100763, speak of respectively and utilize the vegetable oil oil foot to make binder for casting, but no matter be the raw material proportioning, still manufacture craft all has obvious difference with the present invention, manufacture craft particularly, the present invention is all simple and convenient than above-mentioned four patents.
Synthesis technique of the present invention is as follows:
1. composition of raw materials
Vegetable oil residue 50～90%
Acid or alkali 1～15%
The solvent surplus
(also can add resins 0～10% such as rosin) to improve baked tensile strength.
Solvent can adopt kerosene, diesel oil etc.; Vegetable oil residue can adopt the vegetable oil residue of dryness or semi-drying, as the oil foot of rape oil, rice bran oil, cottonseed oil, sesame oil, corn oil, sunflower oil, soya-bean oil, rubber seed oil, safflower oil, walnut oil, hempseed wet goods.
2. synthesis technique:
A. pH-value and the iodine number to used vegetable oil residue raw material detects;
B. vegetable oil residue is put into reactor, and adds corresponding acid or alkali according to testing result, make its pH value for＜7, iodine number＞100, heat to 150 ℃;
C. put into stirring solvent and heat, be incubated 4 hours to 150 ℃;
D. lower the temperature and the still basin.
Good effect of the present invention is:
1. cheap, the raw material abundance.The used primary raw material of the present invention is the vegetable oil oil foot, is the waste material or the byproduct of industry, and its price only is 1/4 of a tung oil, also hangs down 10～20% than closing fat.Thereby has a remarkable advantage of inexpensive source foot.
2. nontoxic, non-stimulated.The present invention does not contain poisonous and excitor substances such as phenol, aldehyde, aromatic hydrocarbon.
3. casting character is better.Main casting character such as mucous membrane, creep resistance, resistance to water soak, gas-forming property, elevated temperature strength etc. are all close with the vegetable oil binding agent, thereby are the desirable replacement traditional plant oil binder and the novel binders of synthetic fat binder.
Embodiments of the invention:
1. synthesis technique:
A. 70 kilograms of preparation of soya-oil dregs and 3 kilograms of hydrochloric acid being put into reactor heats to 150 ℃;
B. stir after putting into 27 kilograms of solvents;
C. heat to 150 ℃, be incubated 4 hours;
D. go out the still basin after the cooling cooling.
2. composition of raw materials (percentage by weight):
A. the oil oil foot 70%
B. hydrochloric acid 3%
C. solvent 27%
Claims (2)
1, a kind of casting core sand binder is characterized in that:
1. synthesis technique is:
A. pH-value and the iodine number to used vegetable oil residue raw material detects;
B. vegetable oil residue is put into reactor, and adds corresponding acid or alkali according to testing result, make its pH value for＜7, iodine number＞100, heat to 150 ℃;
C. put into stirring solvent and heat, be incubated 4 hours to 150 ℃;
D. lower the temperature and the still basin.
2. composition of raw materials is:
Vegetable oil residue 50～90%
Acid or alkali 1～15%
Solvent 5～45%
2, composition of raw materials is:
Vegetable oil residue 50～90%
Acid or alkali 1～15%
Solvent 5～45%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107467 CN1025659C (en) | 1991-08-14 | 1991-08-14 | core sand binder for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107467 CN1025659C (en) | 1991-08-14 | 1991-08-14 | core sand binder for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069432A CN1069432A (en) | 1993-03-03 |
| CN1025659C true CN1025659C (en) | 1994-08-17 |
Family
ID=4908805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91107467 Expired - Fee Related CN1025659C (en) | 1991-08-14 | 1991-08-14 | core sand binder for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025659C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049616C (en) * | 1994-05-23 | 2000-02-23 | 王清泉 | Binder for casting core and synthesis technology |
| CA2409363A1 (en) * | 2001-02-07 | 2003-02-04 | Victor Steven Lafay | Sandcasting pattern coating compositions |
| JP4545192B2 (en) * | 2005-07-15 | 2010-09-15 | 株式会社小松製作所 | Resin coated sand for cast steel, mold made of the sand, and steel casting cast by the mold |
| CN101274351B (en) * | 2007-03-29 | 2010-04-14 | 沈阳工业大学 | A kind of foundry binder and preparation method thereof |
| CN102319869A (en) * | 2011-10-13 | 2012-01-18 | 李华山 | Molding sand for casting ductile iron |
| CN102672109A (en) * | 2012-05-18 | 2012-09-19 | 珠海市斗门福联造型材料实业有限公司 | Easy-to-demould precoated sand and production process of easy-to-demould precoated sand |
| CN103331409A (en) * | 2013-07-02 | 2013-10-02 | 海安县中丽化工材料有限公司 | Method for preparing novel casting composite binder |
| CN117206463A (en) * | 2023-07-31 | 2023-12-12 | 淄博市特种设备检验研究院 | A kind of preparation method of casting sand binder |
-
1991
- 1991-08-14 CN CN 91107467 patent/CN1025659C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1069432A (en) | 1993-03-03 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |