CN103331409A - Method for preparing novel casting composite binder - Google Patents
Method for preparing novel casting composite binder Download PDFInfo
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- CN103331409A CN103331409A CN2013102733731A CN201310273373A CN103331409A CN 103331409 A CN103331409 A CN 103331409A CN 2013102733731 A CN2013102733731 A CN 2013102733731A CN 201310273373 A CN201310273373 A CN 201310273373A CN 103331409 A CN103331409 A CN 103331409A
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Abstract
The invention relates to the technical field of composite binders and particularly relates to a method for preparing a novel casting composite binder. The method comprises the following steps of: (1) mixing and stirring 20-40 parts (by weight) of epoxy resin, 10-20 parts (by weight) of fatty acid ester and 30-50 parts (by weight) of water, heating up to the temperature of 80-90 DEG C, and carrying out heat preservation for 1-2 hours; and (2) adding 5-10 parts (by weight) of hydrochloric acid and 10-20 parts (by weight) of methanol to the mixture obtained in the step (1), uniformly stirring, cooling down to the temperature of 50-70 DEG C, and carrying out heat preservation for 0.5-1 hours. The product of the method is excellent in performance, high in dry tensile strength and can be universally used in a manner of replacing compound fatty oil in the prior art; firstly, after wet core sand using the product is released, in the process of drying and moving, a geometric switch does not change, and the yield of cores can be increased to 98% compared with that of the prior art; secondly, the core drying temperature is low, the roasting time is short, energy sources are saved, the scattering performance after pouring is good, and the sand removal is very easy; and finally, the reduction of environmental pollution and improvement on work environment are facilitated.
Description
Technical field
The present invention relates to the composite adhesive technical field, be specifically related to the preparation method of novel casting composite adhesive.
Background technology
At present, the common employing of existing casting composite adhesive is closed fatty oil and is made, but adopts its poor performance of adhesive of aforesaid way, and baked tensile strength is low, and bonding effect is poor, and the fuse yield rate is low.Simultaneously, existing adhesive a large amount of cigarettes and toxic odor very easily occur in oven dry and casting process, causes environmental pollution.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of function admirable, baked tensile strength height, fuse yield rate height, nontoxic, tasteless, the novel casting composite adhesive that is conducive to improve working environment.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: the preparation method of novel casting composite adhesive may further comprise the steps:
(1), by weight 20～40 parts of epoxy resins, 10～20 parts of fatty acid esters and water are mixed stirring for 30～50 parts, heat temperature raising to 80～90 ℃, temperature retention time 1～2 hour;
(2), in described step (one's) mixed material, add 10～20 parts of 5～10 parts of weight portion hydrochloric acid and methyl alcohol, stir, and be cooled to 50～70 ℃, temperature retention time 0.5～1 hour;
(3), in described step (twos') mixed material, add the weight portion talcum powder and stir for 10～30 parts, cool off naturally then, product.
The present invention has following beneficial effect: the preparation method of novel casting composite adhesive of the present invention, be primary raw material with epoxy resin, fatty acid ester and water, in addition auxiliary material is taken out and is made simultaneously, and its properties of product are good, the baked tensile strength height, the fatty oil that closes that can substitute prior art generally uses; At first, after the green sand core sand demoulding of use this product, in oven dry and moving process, how much switches do not change, and the fuse yield rate can be increased to 98% than prior art; Secondly, the fuse bake out temperature is low, and the barbecue time is short, saves the energy, and cast back collapsibility is good, very easily sand removal; At last, smokeless, tasteless, nontoxic in oven dry and casting process, be conducive to improve environmental pollution and working environment.In addition, production technology of the present invention is simple, and cost is low, is mainly used in bonding core sand.
The specific embodiment
Below the present invention will be further described in detail.
Embodiment one.
The preparation method of novel casting composite adhesive may further comprise the steps:
(1), by weight 20 parts of epoxy resins, 10 parts of fatty acid esters and water are mixed stirring for 30 parts, heat temperature raising to 80 ℃, temperature retention time 1 hour;
(2), in described step (one's) mixed material, add 10 parts of 5 parts of weight portion hydrochloric acid and methyl alcohol, stir, and be cooled to 50 ℃, temperature retention time 0.5 hour;
(3), in described step (twos') mixed material, add the weight portion talcum powder and stir for 10 parts, cool off naturally then, product.
Embodiment two.
The preparation method of novel casting composite adhesive may further comprise the steps:
(1), by weight 30 parts of epoxy resins, 15 parts of fatty acid esters and water are mixed stirring for 40 parts, heat temperature raising to 85 ℃, temperature retention time 1.5 hours;
(2), in described step (one's) mixed material, add 15 parts of 8 parts of weight portion hydrochloric acid and methyl alcohol, stir, and be cooled to 60 ℃, temperature retention time 0.8 hour;
(3), in described step (twos') mixed material, add the weight portion talcum powder and stir for 20 parts, cool off naturally then, product.
Embodiment three.
The preparation method of novel casting composite adhesive may further comprise the steps:
(1), by weight 40 parts of epoxy resins, 20 parts of fatty acid esters and water are mixed stirring for 50 parts, heat temperature raising to 90 ℃, temperature retention time 2 hours;
(2), in described step (one's) mixed material, add 20 parts of 10 parts of weight portion hydrochloric acid and methyl alcohol, stir, and be cooled to 70 ℃, temperature retention time 1 hour;
(3), in described step (twos') mixed material, add the weight portion talcum powder and stir for 30 parts, cool off naturally then, product.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. the preparation method of novel casting composite adhesive is characterized in that, may further comprise the steps:
(1), by weight 20～40 parts of epoxy resins, 10～20 parts of fatty acid esters and water are mixed stirring for 30～50 parts, heat temperature raising to 80～90 ℃, temperature retention time 1～2 hour;
(2), in described step (one's) mixed material, add 10～20 parts of 5～10 parts of weight portion hydrochloric acid and methyl alcohol, stir, and be cooled to 50～70 ℃, temperature retention time 0.5～1 hour;
(3), in described step (twos') mixed material, add the weight portion talcum powder and stir for 10～30 parts, cool off naturally then, product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102733731A CN103331409A (en) | 2013-07-02 | 2013-07-02 | Method for preparing novel casting composite binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102733731A CN103331409A (en) | 2013-07-02 | 2013-07-02 | Method for preparing novel casting composite binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103331409A true CN103331409A (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102733731A Pending CN103331409A (en) | 2013-07-02 | 2013-07-02 | Method for preparing novel casting composite binder |
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| CN (1) | CN103331409A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB789308A (en) * | 1954-10-06 | 1958-01-15 | Mo Och Domsjoe Ab | Improvements in or relating to the manufacture of sand cores and other sand mould parts for metal casting |
| CN1069432A (en) * | 1991-08-14 | 1993-03-03 | 吴正永 | Casting type, core sand binder |
| CN1218728A (en) * | 1997-11-30 | 1999-06-09 | 高瑞安 | Adhesive for casting core |
| US20050020725A1 (en) * | 2003-07-25 | 2005-01-27 | Xianping Wang | Binders containing an epoxy resin, an ester of a fatty acid, and a fluorinated acid |
| PT1663545E (en) * | 2003-07-25 | 2008-07-04 | Ashland Licensing & Intellectu | Acrylate-free binders containing an epoxy resin and an alkyl silicate |
| CN101274351A (en) * | 2007-03-29 | 2008-10-01 | 沈阳工业大学 | Method for preparing environment-friendly type casting adhesive agent |
-
2013
- 2013-07-02 CN CN2013102733731A patent/CN103331409A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB789308A (en) * | 1954-10-06 | 1958-01-15 | Mo Och Domsjoe Ab | Improvements in or relating to the manufacture of sand cores and other sand mould parts for metal casting |
| CN1069432A (en) * | 1991-08-14 | 1993-03-03 | 吴正永 | Casting type, core sand binder |
| CN1218728A (en) * | 1997-11-30 | 1999-06-09 | 高瑞安 | Adhesive for casting core |
| US20050020725A1 (en) * | 2003-07-25 | 2005-01-27 | Xianping Wang | Binders containing an epoxy resin, an ester of a fatty acid, and a fluorinated acid |
| PT1663545E (en) * | 2003-07-25 | 2008-07-04 | Ashland Licensing & Intellectu | Acrylate-free binders containing an epoxy resin and an alkyl silicate |
| CN101274351A (en) * | 2007-03-29 | 2008-10-01 | 沈阳工业大学 | Method for preparing environment-friendly type casting adhesive agent |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131002 |