CN102357648A - Chill coating for casting - Google Patents
Chill coating for casting Download PDFInfo
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- CN102357648A CN102357648A CN2011103093042A CN201110309304A CN102357648A CN 102357648 A CN102357648 A CN 102357648A CN 2011103093042 A CN2011103093042 A CN 2011103093042A CN 201110309304 A CN201110309304 A CN 201110309304A CN 102357648 A CN102357648 A CN 102357648A
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- graphite powder
- powder
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- coating
- casting
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Abstract
The invention discloses a chill coating for casting, which is composed of graphite powder, sodium bentonite, iron oxide red, silicon iron powder, colophony and ethyl alcohol. Amorphous graphite powder is combined with flaky-shaped graphite powder in usage. The chill coating for the casting can effectively prevent chill from appearing at chill portions and improve casting quality.
Description
Technical field
The invention belongs to casting technology field, especially relate to a kind of foundry goods and use chill coating.
Background technology
In spheroidal graphite cast-iron was produced, for a change the casting solidification mode guaranteed that shrinkage porosite, shrinkage cavity do not appear in foundry goods inside; Usually place the chill of some; Thereby reach the quality problems that solve shrinkage porosite, shrinkage cavity, but another outstanding quality problems occurred, spoken parts in traditional operas appears in chill position foundry goods; Processing difficulties is simultaneously also with air holes.Aborning, use traditional chill coating, as: 1. rosin 25%, jet-black 15%, system are with oil 60%; 2. graphite powder 94%, potter's clay 6%, water are an amount of.But effect is all not obvious, and particularly the spoken parts in traditional operas at chill position is difficult for eliminating, and has only and adopts heat-treating methods to eliminate again, has increased the castings production cost.
Summary of the invention
The objective of the invention is: provide a kind of foundry goods of avoiding the chill position spoken parts in traditional operas, raising casting quality to occur to use chill coating.
Technical scheme of the present invention is: this coating is made up of following material by weight percentage: graphite powder 86-91%, sodium bentonite 2-4%, ferric oxide red powder 2-3%, ferrosilicon powder 2-3%, rosin 3-4%, ethanol are an amount of; Said graphite powder is that amorphous graphite powder and the combination of flaky graphite powder are used, and is by weight percentage: flaky graphite powder 25-35%, amorphous graphite powder 65-75%.
Preferred version of the present invention is: this coating is made up of following material by weight percentage: graphite powder 88.5%, sodium bentonite 3%, ferric oxide red powder 2.5%, ferrosilicon powder 2.5%, rosin 3.5%, ethanol are an amount of; Said graphite powder is that amorphous graphite powder and the combination of flaky graphite powder are used, and is by weight percentage: flaky graphite powder 30%, amorphous graphite powder 70%.
The invention has the beneficial effects as follows: the present invention chooses graphite powder as the coating skeleton, swashs heat coating cracking down for guaranteeing thick and large casting high temperature, and amorphous graphite and flaky graphite combination are used, and having good temperature resistance can; Simultaneously, for preventing bleb, add the ferric oxide red powder of 2-3%; Select for use an amount of high purity ethanol as carrier, prevent that moisture is too high, produce pore; Select for use sodium bentonite as suspending agent, reduced cost; For preventing the chill pore, select hydrophobic type binding agent-rosin for use; Add ferrosilicon powder and can prevent that spoken parts in traditional operas from appearring in foundry goods.This coating has good wetability, has improved normal temperature, elevated temperature strength and the rigidity of coating, effectively avoids the chill position spoken parts in traditional operas to occur, reduces casting defect.In castings production in enormous quantities, improve casting yield, low cost of manufacture.
The specific embodiment
Embodiment 1: this chill coating is made up of following material by weight percentage: graphite powder 88.5%, sodium bentonite 3%, ferric oxide red powder 2.5%, ferrosilicon powder 2.5%, rosin 3.5%, ethanol are an amount of; Graphite powder is that amorphous graphite powder and the combination of flaky graphite powder are used, and is by weight percentage: flaky graphite powder 30%, amorphous graphite powder 70%.
The collocation method of this coating: 1. rosin is pulverized, cross 200/270 screen size; 2. after rosin being dissolved in ethanol, add bentonite and stir, add flaky graphite powder, amorphous graphite powder, ferric oxide red powder, ferrosilicon powder then, use stirs.During use, evenly brush is on the chill working surface with spread pen, and the about 0.1-0.3mm of thickness lights baking then.
Embodiment 2: this chill coating is made up of following material by weight percentage: graphite powder 89%, sodium bentonite 2%, ferric oxide red powder 3%, ferrosilicon powder 3%, rosin 3%, ethanol are an amount of; The ratio of amorphous graphite powder and flaky graphite powder is 25:75.
Embodiment 3: this chill coating is made up of following material by weight percentage: graphite powder 88%, sodium bentonite 4%, ferric oxide red powder 2%, ferrosilicon powder 2%, rosin 4%, ethanol are an amount of; The ratio of amorphous graphite powder and flaky graphite powder is 35:65.
Embodiment 4: this chill coating is made up of following material by weight percentage: graphite powder 86%, sodium bentonite 4%, ferric oxide red powder 3%, ferrosilicon powder 3%, rosin 4%, ethanol are an amount of; The usage ratio of amorphous graphite powder and flaky graphite powder is 30:70.
Embodiment 5: this chill coating is made up of following material by weight percentage: graphite powder 91%, sodium bentonite 2%, ferric oxide red powder 2%, ferrosilicon powder 2%, rosin 3%, ethanol are an amount of; The usage ratio of amorphous graphite powder and flaky graphite powder is 32:68.
Claims (2)
1. a foundry goods is used chill coating, it is characterized in that: this coating is made up of following material by weight percentage: graphite powder 86-91%, sodium bentonite 2-4%, ferric oxide red powder 2-3%, ferrosilicon powder 2-3%, rosin 3-4%, ethanol are an amount of; Said graphite powder is that amorphous graphite powder and the combination of flaky graphite powder are used, and is by weight percentage: flaky graphite powder 25-35%, amorphous graphite powder 65-75%.
2. foundry goods according to claim 1 is used chill coating, it is characterized in that: this coating is made up of following material by weight percentage: graphite powder 88.5%, sodium bentonite 3%, ferric oxide red powder 2.5%, ferrosilicon powder 2.5%, rosin 3.5%, ethanol are an amount of; Said graphite powder is that amorphous graphite powder and the combination of flaky graphite powder are used, and is by weight percentage: flaky graphite powder 30%, amorphous graphite powder 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103093042A CN102357648A (en) | 2011-10-13 | 2011-10-13 | Chill coating for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103093042A CN102357648A (en) | 2011-10-13 | 2011-10-13 | Chill coating for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357648A true CN102357648A (en) | 2012-02-22 |
Family
ID=45583060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103093042A Pending CN102357648A (en) | 2011-10-13 | 2011-10-13 | Chill coating for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102357648A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836960A (en) * | 2012-09-28 | 2012-12-26 | 遵义市润丰源钢铁铸造有限公司 | Coating for metal casting EPC (Expandable Pattern Casting) |
| CN103752809A (en) * | 2014-01-07 | 2014-04-30 | 南通宏德机电有限公司 | Method for eliminating aluminum alloy casting pore defects |
| CN104148579A (en) * | 2014-09-03 | 2014-11-19 | 李华山 | Resin sand-produced nodular cast iron paint and preparation method thereof |
| CN104493077A (en) * | 2014-12-29 | 2015-04-08 | 南京理工大学常熟研究院有限公司 | Paint of chill for casting aluminum alloy |
| CN104646605A (en) * | 2015-03-05 | 2015-05-27 | 苏州宇希新材料科技有限公司 | Coating for cast aluminum alloy |
| CN109175226A (en) * | 2018-11-15 | 2019-01-11 | 西峡县众德汽车部件有限公司 | Chill coating and its preparation method and application, chill and its application |
| CN111515334A (en) * | 2020-04-28 | 2020-08-11 | 宁夏共享化工有限公司 | Casting coating for external chill |
| CN113426979A (en) * | 2021-05-25 | 2021-09-24 | 芜湖泓鹄材料技术有限公司 | Manufacturing and using method of automobile stamping and drawing die solid casting section surface chilling block |
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| CN87105150A (en) * | 1987-07-23 | 1988-02-10 | 陕西省金属结构厂 | The coating that is used for stud and internal densener |
| JPH04138838A (en) * | 1990-09-28 | 1992-05-13 | Kawasaki Steel Corp | Facing agent for cast iron casting |
| CN1073958A (en) * | 1991-12-30 | 1993-07-07 | 陕西机械学院 | The trace-element paint that is used for spherulitic iron piece with big cross section |
| JP2003126940A (en) * | 2001-10-19 | 2003-05-08 | Tsuchiyoshi Acty Corp | Casting mold and manufacturing method therefor |
| CN1652888A (en) * | 2002-05-13 | 2005-08-10 | 本田技研工业株式会社 | Cast iron internal chill member and method of producing the same |
| JP2010131665A (en) * | 2008-12-08 | 2010-06-17 | Okazaki Kosanbutsu Kk | Facing material for casting |
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2011
- 2011-10-13 CN CN2011103093042A patent/CN102357648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105150A (en) * | 1987-07-23 | 1988-02-10 | 陕西省金属结构厂 | The coating that is used for stud and internal densener |
| JPH04138838A (en) * | 1990-09-28 | 1992-05-13 | Kawasaki Steel Corp | Facing agent for cast iron casting |
| CN1073958A (en) * | 1991-12-30 | 1993-07-07 | 陕西机械学院 | The trace-element paint that is used for spherulitic iron piece with big cross section |
| JP2003126940A (en) * | 2001-10-19 | 2003-05-08 | Tsuchiyoshi Acty Corp | Casting mold and manufacturing method therefor |
| CN1652888A (en) * | 2002-05-13 | 2005-08-10 | 本田技研工业株式会社 | Cast iron internal chill member and method of producing the same |
| JP2010131665A (en) * | 2008-12-08 | 2010-06-17 | Okazaki Kosanbutsu Kk | Facing material for casting |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836960A (en) * | 2012-09-28 | 2012-12-26 | 遵义市润丰源钢铁铸造有限公司 | Coating for metal casting EPC (Expandable Pattern Casting) |
| CN103752809A (en) * | 2014-01-07 | 2014-04-30 | 南通宏德机电有限公司 | Method for eliminating aluminum alloy casting pore defects |
| CN103752809B (en) * | 2014-01-07 | 2015-11-25 | 南通宏德机电有限公司 | A kind of method eliminating aluminium alloy castings hole defect |
| CN104148579A (en) * | 2014-09-03 | 2014-11-19 | 李华山 | Resin sand-produced nodular cast iron paint and preparation method thereof |
| CN104493077A (en) * | 2014-12-29 | 2015-04-08 | 南京理工大学常熟研究院有限公司 | Paint of chill for casting aluminum alloy |
| CN104646605A (en) * | 2015-03-05 | 2015-05-27 | 苏州宇希新材料科技有限公司 | Coating for cast aluminum alloy |
| CN104646605B (en) * | 2015-03-05 | 2016-07-20 | 苏州宇希新材料科技有限公司 | A kind of Cast aluminium alloy gold coating |
| CN109175226A (en) * | 2018-11-15 | 2019-01-11 | 西峡县众德汽车部件有限公司 | Chill coating and its preparation method and application, chill and its application |
| CN111515334A (en) * | 2020-04-28 | 2020-08-11 | 宁夏共享化工有限公司 | Casting coating for external chill |
| CN113426979A (en) * | 2021-05-25 | 2021-09-24 | 芜湖泓鹄材料技术有限公司 | Manufacturing and using method of automobile stamping and drawing die solid casting section surface chilling block |
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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: 20120222 |