CN1257761A - Water-soluble non-toxic reinforcing powder binder for sand core of casting - Google Patents
Water-soluble non-toxic reinforcing powder binder for sand core of casting Download PDFInfo
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- CN1257761A CN1257761A CN 98126101 CN98126101A CN1257761A CN 1257761 A CN1257761 A CN 1257761A CN 98126101 CN98126101 CN 98126101 CN 98126101 A CN98126101 A CN 98126101A CN 1257761 A CN1257761 A CN 1257761A
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- powder
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- glycerine
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Abstract
A water-soluble non-toxic reinforcing powder binder for the sand core of casting is prepared from canna edulis powder (25-30%), Shuiru powder (25-30%), Muru powder (25-30%), Ganyouguo powder (5-10%) and water-soluble cane cellulose (5-15%) through crushing, soaking, purifying, rinsing, colloidizing, dewatering and pulverizing. Its advantages are high performance, low cost, less investment and easy preparing.
Description
The present invention relates to a kind of casting sand core binding agent, particularly a kind of water-soluble non-toxic reinforcing powder binder for sand core of casting.
In the prior art, casting sand core generally all is two types of the oils that adopts or lipids with binding agent, i.e. tung oil type or phenolic resins type or furane resins type etc.; This class binding agent in a very long period, and even now foundry industry is also played positive role always.Yet, continuous development along with science and technology, people recognize gradually, existing binding agent has been difficult to adapt to the needs of modern foundry industry development, its main cause be this class binding agent all in various degree exist some defectives and deficiency: the one, during the casting casting, the excitant peculiar smell is not only arranged, and produce pernicious gas, have a strong impact on the healthy of workman; The 2nd, the cost costliness; The 3rd, water-soluble not enough when joining sand, need add additives in addition, when casting besides, carbonization degree is low, can not effectively eliminate defectives such as bleb, burning into sand, and the core sand collapsibility is also poor.
The objective of the invention is to provide a kind of cost low, the shaping strength height, the demoulding is bright and clean, flowability and good permeability, after the casting, a kind of water-soluble non-toxic reinforcing powder binder for sand core of casting that core sand collapsibility, deformability and sand fallout are strong.
The present invention finishes as follows.According to China's national situation, environmental protection factor, workman's physical and mental health, economic benefit of enterprises are basics point of departure of the present invention, and its major technique characteristics and technical performance index then are the places of the purpose of emphasis consideration of the present invention.What binding agent of the present invention adopted is non-toxic organic raw material prescription, it mainly by adhesive dasheen powder, water eat powder, wood is eaten powder, glycerine fruit powder and the plain five kinds of raw materials of water-soluble sugarcane fibre and is formed; By its configuration proportion, the content of its raw material Main Ingredients and Appearance is respectively: adhesive dasheen powder 25-30%, water are eaten powder 25-30%, wood is eaten powder 25-30%, glycerine fruit powder 5-10%, the plain 5-15% of water-soluble sugarcane fibre.The preparation method of binding agent of the present invention is respectively glue taro, water to be eaten earlier and wooden rhizome pulverizing---immersion---purification---rinsing of eating, thereafter add glycerine fruit powder mixing carrying out gel in its ratio composition, add the plain dehydration of water-soluble sugarcane fibre, oven dry after the gel again, pulverizing at last is the powder shape.Here, glycerine fruit powder and water-soluble sugarcane fibre element are outsourcing finished product raw material.
Advantage of the present invention is: (1) material component is simple, makes and produces easily, and equipment investment is few, and raw material is extensively abundant, and product cost is low, compares with oil based binder, has only 1/2nd cost, compares with ester class binding agent, more wants much cheap.(2) be used for the core sand technical performance index: wet strength, green permeability, baked tensile strength, the dried intensity of cutting are all much higher than existing binding agent, and gas forming amount is much less then, and do not need any additives outside dewatering when joining sand.(3) because the present invention is the body plan of powdery organic matter, the carbonization degree height, residual degree goes to zero, and is a kind of of collapsibility the best in the at present domestic and international binding agent, very easily peeling; Particularly gas forming amount is low, produces a kind of reducing gas that prevents scab in the high temperature carbonization process, can effectively eliminate bleb, burning into sand defective, makes cast(ing) surface bright and clean, and these characteristics are that institutes such as oil-sand and fat sand can't have.
Be the embodiment of binding agent of the present invention below.
Most preferred embodiment one of the present invention: the requirement of configuration proportion according to the present invention, the content of five kinds of raw material compositions of the present invention are respectively that adhesive dasheen powder 30%, water are eaten powder 30%, wood is eaten powder 30%, glycerine fruit powder 5%, water-soluble sugarcane fibre element 5%.
Most preferred embodiment two of the present invention: the requirement of configuration proportion according to the present invention, the content of five kinds of raw material compositions of the present invention are respectively that adhesive dasheen powder 25%, water are eaten powder 30%, wood is eaten powder 30%, glycerine fruit powder 8%, water-soluble sugarcane fibre element 7%.
Claims (3)
1, a kind of powder binder, it is eaten powder, wood by adhesive dasheen powder, water and eats five kinds of raw materials such as powder, glycerine fruit powder and water-soluble sugarcane fibre element and form; It is characterized in that five kinds of raw material configuration proportions are: adhesive dasheen powder 25-30%, water are eaten powder 25-30%, wood is eaten powder 25-30%, glycerine fruit powder 5-10%, the plain 5-15% of water-soluble sugarcane fibre; Preparation method is respectively the rhizome that glue taro, water are eaten, wood is eaten to be pulverized earlier---to soak---purification---rinsing, thereafter add glycerine fruit powder mixing carrying out gel in its ratio composition, add the plain dehydration of water-soluble sugarcane fibre, oven dry after the gel again, pulverizing at last is the powder shape.
2, powder binder according to claim 1 is characterized in that the content of five kinds of raw material compositions is respectively: adhesive dasheen powder 30%, water are eaten powder 30%, wood is eaten powder 30%, glycerine fruit powder 5%, water-soluble sugarcane fibre element 5%.
3, powder binder according to claim 1 is characterized in that the content of five kinds of raw material compositions is respectively: adhesive dasheen powder 25%, water are eaten powder 30%, wood is eaten powder 30%, glycerine fruit powder 8%, water-soluble sugarcane fibre element 7%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126101 CN1257761A (en) | 1998-12-22 | 1998-12-22 | Water-soluble non-toxic reinforcing powder binder for sand core of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126101 CN1257761A (en) | 1998-12-22 | 1998-12-22 | Water-soluble non-toxic reinforcing powder binder for sand core of casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1257761A true CN1257761A (en) | 2000-06-28 |
Family
ID=5229469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98126101 Pending CN1257761A (en) | 1998-12-22 | 1998-12-22 | Water-soluble non-toxic reinforcing powder binder for sand core of casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1257761A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402187C (en) * | 2003-09-02 | 2008-07-16 | 新东工业株式会社 | Method of forming mold and core for metal casting |
| CN101898226A (en) * | 2010-08-16 | 2010-12-01 | 新蔡县东邦铸造有限责任公司 | Casting sand mixing auxiliary material |
-
1998
- 1998-12-22 CN CN 98126101 patent/CN1257761A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402187C (en) * | 2003-09-02 | 2008-07-16 | 新东工业株式会社 | Method of forming mold and core for metal casting |
| CN101898226A (en) * | 2010-08-16 | 2010-12-01 | 新蔡县东邦铸造有限责任公司 | Casting sand mixing auxiliary material |
| CN101898226B (en) * | 2010-08-16 | 2011-09-21 | 新蔡县东邦铸造有限责任公司 | Casting sand mixing auxiliary material |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |