CN102836958A - Coating for shell mold casting and application of coating - Google Patents
Coating for shell mold casting and application of coating Download PDFInfo
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- CN102836958A CN102836958A CN2012103204764A CN201210320476A CN102836958A CN 102836958 A CN102836958 A CN 102836958A CN 2012103204764 A CN2012103204764 A CN 2012103204764A CN 201210320476 A CN201210320476 A CN 201210320476A CN 102836958 A CN102836958 A CN 102836958A
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Abstract
The invention relates to a coating for shell mold casting. The coating comprises the following components in percentage by weight: 20-30 percent of zircon sand, 30-40 percent of bauxite, 6.3-8.5 percent of adhesive, 2 percent of lithium-based bentonite, 4-6 percent of suspension, 0.5 percent of sodium methylene dinaphthalenesulfonate, 0.5 percent of surfactant (OP-10) and 20-30 percent of water. The invention further relates to application of the coating for shell mold casting. By using the coating, the coating effect is good; and the adhesive property is good under a high temperature condition, the scouring of high-temperature molten iron casting can be resisted, the strength is high, and a coating layer is kept perfectly all the time. The requirements of thin shell casting are fully met, and the cost can be effectively reduced.
Description
Technical field
The present invention relates to casting field, particularly the Shell Casting Technology field.
Background technology
Shell Casting Technology is just produced the method for foundry goods with the shell casting mold; Main feature is not use sandbox to cast, and particularly makes the shell casting mold with resin sand and can significantly reduce and use molding sand quantity, live cast(ing) surface bright and clean; Dimensional accuracy is high; Be of high quality, can be particularly suitable for producing various thin wall alloy foundry goods without following process or only processing on a small quantity.
Yet shell moulded casting is very high to the requirement of strength of shell owing to imbedding sandbox, so complex process will be done 7-8 layer coating usually, casts successfully with assurance, causes processing cost high, has influenced and has promoted the use of.
Summary of the invention
Defective to prior art of the present invention proposes a kind of shell-molded coating that is used for:
Technical scheme of the present invention is following:
The present invention provides a kind of shell-molded coating that is used for, and the mass percent of its each component is: zircon sand 20-30%, bauxite 30～40%; Binding agent 6.3～8.5%; Lithium bentonite 2%, suspending agent 4～6%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%; Surfactant (OP-10) 0.5%, water 20～30%.
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins.
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
In one embodiment of the invention, the proportioning of said each component that is used for shell-molded coating is following: zircon sand 30%, bauxite 30%; Binding agent 8.5%, lithium bentonite 2%, suspending agent 6%; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 22.5%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
In another embodiment of the present invention, the proportioning of said each component that is used for shell-molded coating is following: zircon sand 20%, bauxite 40%; Binding agent 6.3%, lithium bentonite 2%, suspending agent 4%; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 26.7%;
Said binding agent is: mass ratio is the waterglass of 8:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 2:3.
In another embodiment of the present invention, the proportioning of said each component that is used for shell-molded coating is following: zircon sand 20%, bauxite 35%; Binding agent 7%, lithium bentonite 2%, suspending agent 5%; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 30%;
Said binding agent is: mass ratio is the waterglass of 9:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
In another embodiment of the present invention, the proportioning of said each component that is used for shell-molded coating is following: zircon sand 25%, bauxite 40%; Binding agent 8%, lithium bentonite 2%, suspending agent 4%; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 20%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:3.
The present invention also provides a kind of application that is used for shell-molded coating, comprises following steps: 1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mix to evenly; 2) make the shell casting mold: model is immersed in the coating, suitably stir, rotational model slowly after mentioning makes coating can evenly cover on the said model, and said model is put into quartz sand, carries out stucco.The said model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond to carry out cure process, takes out said model then and cleans with clear water, carries out air-dry; 3) repeat above-mentioned processing procedure, treat that said shell thickness reaches 2-3mm after, carry out next step and cure operation.
Further, said step 1) also comprises and mix to stir 2 hours, leave standstill 3 hours subsequent use.
It is effective that coating of the present invention is coated with extension; Adhesive property under the hot conditions is good, washing away when making it in the high temperature casting process, can stand the high temperature liquid iron cast, and intensity is high, and coating remains integrality.Reached the requirement of shell moulded casting fully, and cost is lower, application prospect is good.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment 1
1. raw material is prepared
The mass percent of each component is in the coating: 250 purpose zircon sands, 30%, 230 purpose bauxite 30%, binding agent 8.5%, lithium bentonite 2%, suspending agent 6%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 22.5%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
2. applying step:
1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mixing and stirring;
2) make the shell casting mold: model is immersed in the coating, suitably stir, rotational model slowly after mentioning makes coating evenly to cover on the model, and model is put into quartz sand, carries out stucco;
3) model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond and carries out cure process, takes out model then and cleans with clear water, carries out air-dry;
4) repeating step 2)-3), treat that shell thickness reaches 3mm after, carry out next step and cure operation.
Embodiment 2
1. raw material is prepared
The mass percent of each component is in the coating: 230 purpose zircon sands, 20%, 250 purpose bauxite 40%, binding agent 6.3%, lithium bentonite 2%, suspending agent 4%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 26.7%;
Said binding agent is: mass ratio is the waterglass of 8:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 2:3.
2. applying step:
1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mix and stirred 2 hours, leave standstill 3
Hour for use;
2) make the shell casting mold: model is immersed in the coating, suitably stir, rotational model slowly after mentioning makes coating evenly to cover on the model, and model is put into quartz sand, carries out stucco.
3) model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond and carries out cure process, takes out model then and cleans with clear water, carries out air-dry.
4) repeating step 2)-3), treat that shell thickness reaches 2mm after, carry out next step and cure operation.
Embodiment 3
1. raw material is prepared
280 purpose zircon sands, 20%, 200 purpose bauxite 35%, binding agent 7%, lithium bentonite 2%, suspending agent 5%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 30%;
Said binding agent is: mass ratio is the waterglass of 9:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.2.
Applying step:
1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mix and stirred 2 hours, leave standstill 3 hours for use;
2) make the shell casting mold: model is immersed in the coating, suitably stir, rotational model slowly after mentioning makes coating evenly to cover on the model, and model is put into quartz sand, carries out stucco.
3) model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond and carries out cure process, takes out model then and cleans with clear water, carries out air-dry.
4) repeating step 2)-3), treat that shell thickness reaches 3mm after, carry out next step and cure operation.
Embodiment 4
1. raw material is prepared
280 purpose zircon sands, 25%, 200 purpose bauxite 40%, binding agent 8%, lithium bentonite 2%, suspending agent 4%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 20%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:32.
2. applying step:
1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mix and stirred 2 hours, leave standstill 3 hours for use;
2) make the shell casting mold: model is immersed in the coating, suitably stir, rotational model slowly after mentioning makes coating evenly to cover on the model, and model is put into quartz sand, carries out stucco.
3) model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond and carries out cure process, takes out model then and cleans with clear water, carries out air-dry.
4) repeating step 2)-3), treat that shell thickness reaches 2mm after, carry out next step and cure operation.
Through test, it is effective that coating of the present invention is coated with extension; Adhesive property under the hot conditions is good, washing away when making it in the high temperature casting process, can stand the high temperature liquid iron cast, and intensity is high, and coating remains integrality.Reached the requirement of shell moulded casting fully, and cost is lower, application prospect is good.
The above is merely preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of claim of the present invention.
Claims (7)
1. one kind is used for shell-molded coating, it is characterized in that, the mass percent of each component of coating is:
Zircon sand 20-30%, bauxite 30～40%, binding agent 6.3～8.5%, lithium bentonite 2%, suspending agent 4～6%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 20～30%.
2. coating as claimed in claim 1 is characterized in that, the mass percent of each component of coating is:
Zircon sand 30%, bauxite 30%, binding agent 8.5%, lithium bentonite 2%, suspending agent 6%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 22.5%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
3. coating as claimed in claim 1 is characterized in that, the mass percent of each component of coating is:
Zircon sand 20%, bauxite 40%, binding agent 6.3%, lithium bentonite 2%, suspending agent 4%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 26.7%;
Said binding agent is: mass ratio is the waterglass of 8:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 2:3.
4. coating as claimed in claim 1 is characterized in that, the mass percent of each component of coating is:
Zircon sand 20%, bauxite 35%, binding agent 7%, lithium bentonite 2%, suspending agent 5%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 30%;
Said binding agent is: mass ratio is the waterglass of 9:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:2.
5. coating as claimed in claim 1 is characterized in that, the mass percent of each component of coating is:
Zircon sand 25%, bauxite 40%, binding agent 8%, lithium bentonite 2%, suspending agent 4%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 0.5%, surfactant (OP-10) 0.5%, water 20%;
Said binding agent is: mass ratio is the waterglass of 8.5:1 and the composition of phenolic resins;
Said suspending agent is: the mass ratio between the bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:3.
6. the application that is used for shell-molded coating as claimed in claim 1 comprises:
1) by the mass ratio of above-mentioned coating component with the batching ball mill of packing into, mixing and stirring;
2) make the shell casting mold: model is immersed in the coating, suitably stir, slowly rotate said model after mentioning, make coating can evenly cover on the said model, said model is put into quartz sand, carry out stucco;
3) the said model that the surface is affixed quartz sand takes out, and immerses in the ammonium chloride sclerosis pond and carries out cure process, takes out model then and cleans with clear water, carries out air-dry;
4) repeating step 2)-3), treat that said shell thickness reaches 2-3mm after, carry out next step and cure operation.
7. method as claimed in claim 6 is characterized in that, step 1) further comprises and mix to stir 2 hours, leave standstill 3 hours for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320476.4A CN102836958B (en) | 2012-08-31 | 2012-08-31 | Coating for shell mold casting and application of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320476.4A CN102836958B (en) | 2012-08-31 | 2012-08-31 | Coating for shell mold casting and application of coating |
Publications (2)
| Publication Number | Publication Date |
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| CN102836958A true CN102836958A (en) | 2012-12-26 |
| CN102836958B CN102836958B (en) | 2014-10-29 |
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| CN201210320476.4A Active CN102836958B (en) | 2012-08-31 | 2012-08-31 | Coating for shell mold casting and application of coating |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357813A (en) * | 2013-07-24 | 2013-10-23 | 翼城县福旺铸造实业有限公司 | Lost foam steel-casting paint formula and technology method thereof |
| CN103586398A (en) * | 2013-11-27 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Casting technology of stainless steel casting |
| CN103600023A (en) * | 2013-11-20 | 2014-02-26 | 江苏江旭铸造集团有限公司 | Coating for dewaxing casting |
| CN103658509A (en) * | 2013-11-27 | 2014-03-26 | 福州文泰机械铸造有限公司 | High-suspension sand mold coating and preparation method thereof |
| CN105344920A (en) * | 2015-10-08 | 2016-02-24 | 蚌埠冠宜型材科技有限公司 | Sodium silicate binder for improving collapsibility |
| CN107216695A (en) * | 2017-07-04 | 2017-09-29 | 张黎明 | A kind of water pump foundry facing and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666828A (en) * | 2005-01-18 | 2005-09-14 | 湖北工业大学 | Anti-seepage burnon casting paint made from alcohol base or aqueous sand powder |
| CN101412073A (en) * | 2008-11-25 | 2009-04-22 | 李德全 | Special paint for lost foam casting |
| CN101497104A (en) * | 2009-03-11 | 2009-08-05 | 杨玉光 | Lost foam paint and method for producing the same |
| CN102049464A (en) * | 2011-01-26 | 2011-05-11 | 东风汽车有限公司 | Special coating for full mold casting and preparation method thereof |
| CN102389943A (en) * | 2011-11-26 | 2012-03-28 | 淅川县华新铸造有限公司 | Manufacturing method of thin shell |
| CN102407275A (en) * | 2011-04-25 | 2012-04-11 | 湖北工业大学 | Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof |
| CN102601300A (en) * | 2012-03-31 | 2012-07-25 | 湖北省机电研究设计院 | Sintering-strippable red cast iron coating and preparation method thereof |
-
2012
- 2012-08-31 CN CN201210320476.4A patent/CN102836958B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666828A (en) * | 2005-01-18 | 2005-09-14 | 湖北工业大学 | Anti-seepage burnon casting paint made from alcohol base or aqueous sand powder |
| CN101412073A (en) * | 2008-11-25 | 2009-04-22 | 李德全 | Special paint for lost foam casting |
| CN101497104A (en) * | 2009-03-11 | 2009-08-05 | 杨玉光 | Lost foam paint and method for producing the same |
| CN102049464A (en) * | 2011-01-26 | 2011-05-11 | 东风汽车有限公司 | Special coating for full mold casting and preparation method thereof |
| CN102407275A (en) * | 2011-04-25 | 2012-04-11 | 湖北工业大学 | Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof |
| CN102389943A (en) * | 2011-11-26 | 2012-03-28 | 淅川县华新铸造有限公司 | Manufacturing method of thin shell |
| CN102601300A (en) * | 2012-03-31 | 2012-07-25 | 湖北省机电研究设计院 | Sintering-strippable red cast iron coating and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357813A (en) * | 2013-07-24 | 2013-10-23 | 翼城县福旺铸造实业有限公司 | Lost foam steel-casting paint formula and technology method thereof |
| CN103600023A (en) * | 2013-11-20 | 2014-02-26 | 江苏江旭铸造集团有限公司 | Coating for dewaxing casting |
| CN103586398A (en) * | 2013-11-27 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Casting technology of stainless steel casting |
| CN103658509A (en) * | 2013-11-27 | 2014-03-26 | 福州文泰机械铸造有限公司 | High-suspension sand mold coating and preparation method thereof |
| CN105344920A (en) * | 2015-10-08 | 2016-02-24 | 蚌埠冠宜型材科技有限公司 | Sodium silicate binder for improving collapsibility |
| CN107216695A (en) * | 2017-07-04 | 2017-09-29 | 张黎明 | A kind of water pump foundry facing and preparation method thereof |
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|---|---|
| CN102836958B (en) | 2014-10-29 |
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Address after: 215431 Jiangsu city of Suzhou province Taicang City Liuhe Town Liu Village Patentee after: Suzhou Cobol Machine Tool Group Co., Ltd. Address before: 215431 Jiangsu city of Suzhou province Taicang Liuhe Liu Hutai Road No. 89 New Village Patentee before: Taicang Keboer Precision Casting Co., Ltd. |