CN1082466A - Resin sand mould (core) or cast part type (core) is used water based paint - Google Patents
Resin sand mould (core) or cast part type (core) is used water based paint Download PDFInfo
- Publication number
- CN1082466A CN1082466A CN 93110103 CN93110103A CN1082466A CN 1082466 A CN1082466 A CN 1082466A CN 93110103 CN93110103 CN 93110103 CN 93110103 A CN93110103 A CN 93110103A CN 1082466 A CN1082466 A CN 1082466A
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- powder
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- based paint
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Abstract
A kind of is refractory powder with graphite powder, zirconium English powder, high-alumina fly, titanium slag powder etc., and bentonite, Ludox, calgon, CMC, kaolin are suspending agent and binding agent, and Fe
2O
3, the water based paint that is mixed with of chaff alcohol and water, its rheological characteristic, suspension, gas-forming property, anti-cracking behavior, high-temperature stability are all good after testing.During casting was used, coating had higher-strength, and hand is touched, ash is not all fallen in air-blowing, and its inside and outside sur-face peeling is effective behind the casting falling sand, and the surface reaches the A level product standard of JB/TR449-86 quality grading regulation.Coating price is cheap.
Description
The present invention relates to its sand mold surface coating and manufacture method thereof in the Foundry Production.
Along with the foundary industry development, more and more higher to the requirement of casting workpiece surface quality.Sand mold (core) surface coating is required the quality homogeneous, and adhesive property is good, and good water-fast, weatherability are arranged, and at normal temperature and high temperatures, is easy to brushing, can reach defectives such as preventing scab, burning into sand when casting, obtains the foundry goods of any surface finish.The coating that CN86106485 provides is to form with graphite, bentonite, clay, resin, CMC, silica gel, talcum powder, surfactant and water, be applicable to clay-bonded sand, resin sand, close brushing on the fat sand mold, spraying or dip-coating, can make surface roughness mean value reach 9～5 μ m.CN90100454.5 then proposes with zirconium English powder, silica flour, attaclay, emulsifying agent, lithium and calcium bentonite, silicate solution, CMC sodium, sodium methylene bis-naphthalene sulfonate and TiO
2The water based paint of forming, its suspension is good, anti-stick sand during use, easily peels off.Yet at present water based paint still exists in the use and can not guarantee the high-quality defective of foundry goods, particularly to production large-scale, intricate casting, easily produces permeability scab, and Chang Yintuo is counterdie and subscription rate not.
The purpose of this invention is to provide a kind of rheological characteristic, suspension, gas-forming property, anti-cracking behavior and the good water based paint of high-temperature stability, its processing performance is good and with low cost.
Water based paint of the present invention is made up of refractory powder, suspending agent and binding agent, assistant and water, and its proportioning (weight) is:
Refractory powder 100
Bentonite 0.2～4.0
Ludox 0.5～30.0
Composite thickening binding agent 1.2～10.0
Fe
2O
30～12.0
Furfuryl alcohol 0～5.0
Water is an amount of
Refractory powder is selected graphite powder, zirconium English powder, high-alumina fly, titanium slag powder, talcum powder, silica flour, feldspar powder, mica powder for use, selects wherein one or more combination use for use according to the foundry goods needs, and its proportioning is:
Graphite powder 0～100%
Zirconium English powder 0～100%
High-alumina fly 0～80%
Titanium slag powder 0～80%
Talcum powder 0～10%
Silica flour 0～30%
Feldspar powder 0～8%
Mica powder 0～8%
Refractory powder can form the density fireproof coating as the key component of coating on type (core) surface under pouring temperature, prevent that molten metal from infiltrating in the sand mold (core), can obtain the foundry goods of any surface finish.The thickening binding agent is to adopt compounding ingredients, and its proportioning (weight) is:
Calgon 0.1～1.0
CMC 0.1～1.0
Kaolin 1.0～8.0
Has the effect that suspends with bonding.Add Fe
2O
3Can reduce cast(ing) surface flash or veiny line defective, a small amount of furfuryl alcohol add as surfactant that each component of favourable coating is mixed and with the combining of sand mold.Its mixing technique is that first water and thickening binding agent dissolve and stir, then limit in the refractory powder of its particle superfine (200～400 order) and mixing is stirred, add suspending agent item by item, the composite thickening binding agent, binding agent and assistant and suitable quantity of water, batch mixing 2h discharging.
Coating has carried out performance measurements such as rheological characteristic, suspension, gas-forming property, anti-cracking behavior and high-temperature stability, and the coating products HOLCO TE 110 of main performance and Britain FOCECO company compares.Made its yield value of coating of the present invention is close with HOLCO TE 110, and curve shape is more near pseudoplastic fluid.The suspension measurement result is that 24h precipitates height＞0.9 relatively to belong to suspension good.Total gas forming amount＜the 20ml/g(850 of coating ℃ mensuration), belong to low gas-forming property.Anti-cracking behavior test is the coating of brushing the present invention on φ 50mm * 50mm standard core, the 24h that dries in the shade, no cracking phenomena, insert in the drying box and heat up 200 ℃, 2h takes out does not still have cracking phenomena, again sample is put into 1000 ℃ of high temperature furnaces, and 1min takes out coating does not still have cracking phenomena.The high-temperature stable property testing is to increase at φ 50mm * 75mm to brush the 1mm thick coating on the knob standard specimen, dries the back and immerses 1min in 1400 ℃ of molten iron, and the taking-up coating surface is smooth, nothing ftractures, no chemical erosion phenomenon.During the production practical application, coating has higher-strength, and hand is touched to fall ash, air-blowing is dust not, free from environmental pollution, nontoxic, harmless, behind the casting falling sand, inside and outside sur-face peeling is effective, cast(ing) surface reaches the A level product standard of JB/TR449-86 quality grading regulation, has avoided the phenomenon of scab in the casting, sand washing, burning into sand peeling and gagger sand, reduces the casting leakage rate, soldering rate and percent defective, and alleviate the cleaning work amount.
The present invention has characteristics: (1) prescription is unique, and the brushability of coating, rheological characteristic, stability etc. are good, pour into a mould effective.Choosing is plucked and is optimized material and prescription, selecting for use of particularly compound thickening bonding agent, iron oxide and furfuryl alcohol improves the quality that coating itself reaches cast(ing) surface, substantially solve and easily produce scab, demoulding difficulty in the resin bonded sand mould casting, particularly the normal problem that occurs in complicated part casting.(2) mix the equipment of system coating with method is simple.(3) the raw material source is wide, price is low, remarkable in economical benefits.(4) coating of the present invention not only is suitable for iron casting production, and cast steel, non-ferrous metals casting also are suitable for.
Example 1
Formulation for coating material (by weight) is:
Graphite powder 60 high-alumina flies 35
Feldspar powder 5 bentonites 3
Ludox 4 calgons 0.5
CMC 0.2 kaolin 2.5
Fe
2O
34 furfuryl alcohols 1
Water is an amount of
Calgon, CMC, Ludox water are dissolved and stir.With graphite powder (200 order), high-alumina fly (325 order), feldspar powder (300 order) in batch mixer dried be mixed even, thickening binding agent, binding agent and the assistant and the suitable quantity of water that under agitation add suspending agent item by item, prepare, batch mixing 2h.This coating is used for φ 100 serial piston compressor bodies, also is used for casting similar, little complicated part, and percolation ratio is 0.076%.
Example 2
Formulation for coating material (by weight):
Graphite powder 60 high-alumina flies 15
Zirconium English powder 25 bentonites 2
Ludox 5.5 calgons 0.8
CMC 0.2 kaolin 3
Fe
2O
34 furfuryl alcohols 1
Water is an amount of
Preparation method for coating such as example 1, coating are used for φ 170, φ 250 serial piston compressor bodies, and effect is fine.
Example 3
Formulation for coating material (by weight):
Zirconium English powder 100 bentonites 2
Ludox 7.5 calgons 1
CMC 0.1 kaolin 3.5
Fe
2O
34 furfuryl alcohols 1
Water is an amount of
Coating method for making such as example 1, this coating is anti-stick sand coating, is used for KA25, and series sheath core complexity such as large and medium-sized helical-lobe compressor body such as KA31.5 are eaten that husky amount is too small, skin depth, are easily produced permeability scab position, and it is effective.
Example 4
Formulation for coating material (by weight):
High-alumina fly 70 silica flours 30
Ludox 6.5 calgons 1
CMC 0.2 kaolin 3
Fe
2O
34 furfuryl alcohols 1
Bentonite 2 water are an amount of
Coating method for making such as example 1, the coating of this example are anti-impact erosion coating, are used for complicated part, the string skin is more, the cast at the position that erosion is serious, the generation of the sand washing that causes in the time of can avoiding casting, trachoma seepage.
Claims (3)
1, a kind of cast iron water based paint of forming with refractory powder, binding agent, suspending agent, surfactant, water etc. is characterized in that prescription (by weight) is:
Refractory powder graphite powder and/or zirconium English powder
(fineness 200～400 orders) 100.0
Bentonite 0.2～4.0
Ludox 0.5～30.0
The composite thickening binding agent
Calgon 0.1～1.0
CMC 0.1～1.0
Kaolin 1.0～8.0
Fe
2O
30～12
Furfuryl alcohol 0～5
Water is an amount of
Its preparation method is that stirring is miscible.
2, water based paint as claimed in claim 1 is characterized in that the prescription of refractory powder is:
Graphite powder 0～100%
Zirconium English powder 0～100%
High-alumina fly 0～80%
Titanium slag powder 0～80%
Talcum powder 0～10%
Silica flour 0～30%
Feldspar powder 0～8%
Mica powder 0～8%
3, water based paint as claimed in claim 1, it is characterized in that earlier composite thickening binding agent water being dissolved when coating prepares and stir, following add item by item suspending agent, composite thickening bonding agent, bonding agent, assistant and suitable quantity of water, batch mixing 2h are stirred in the limit in the siccative of mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110103 CN1082466A (en) | 1993-02-15 | 1993-02-15 | Resin sand mould (core) or cast part type (core) is used water based paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110103 CN1082466A (en) | 1993-02-15 | 1993-02-15 | Resin sand mould (core) or cast part type (core) is used water based paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1082466A true CN1082466A (en) | 1994-02-23 |
Family
ID=4988010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93110103 Pending CN1082466A (en) | 1993-02-15 | 1993-02-15 | Resin sand mould (core) or cast part type (core) is used water based paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082466A (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049166C (en) * | 1997-10-08 | 2000-02-09 | 冶金工业部钢铁研究总院 | Coating for casting thin foundry goods |
| CN1102165C (en) * | 1999-08-23 | 2003-02-26 | 蒋德奎 | High-strength quick-solidifying refractory adhesive |
| CN100347257C (en) * | 2006-03-16 | 2007-11-07 | 沈阳金安铸造材料厂 | Water-based dipping paint without pollution |
| CN100409973C (en) * | 2005-05-25 | 2008-08-13 | 霍万福 | Water base paint special for resin sand automobile mould full mold casting |
| CN100436000C (en) * | 2007-01-24 | 2008-11-26 | 中国重型汽车集团有限公司 | Water borne coating for metal mold casting and its prepn. |
| CN101259517B (en) * | 2008-04-14 | 2010-06-09 | 戚建明 | Double-roller rolling strip steel machine side seal board surface recombination coating and its preparation method and spraying coating method |
| CN101890475A (en) * | 2010-01-27 | 2010-11-24 | 上海市机械制造工艺研究所有限公司 | Water-based zircon powder quick drying paint for ultra-large steel casting |
| CN101941048A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Graphite paste coating |
| CN101982254A (en) * | 2010-11-23 | 2011-03-02 | 东华大学 | Yellow soil-base sinter-strippable casting coating and preparation method thereof |
| 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 |
| CN102328018A (en) * | 2011-10-28 | 2012-01-25 | 上海市机械制造工艺研究所有限公司 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
| CN102407279A (en) * | 2011-11-29 | 2012-04-11 | 朱小英 | Method for preparing water-based coating for sand mold casting |
| CN102584297A (en) * | 2012-03-01 | 2012-07-18 | 辽宁工业大学 | Method for preparing fire-proof material from the carbon chromium residue or titanium residue of metallurgy furnace |
| CN102836952A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Resin sand type casting coating and preparation method thereof |
| CN102836955A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Coating used for casting resin sand |
| CN101554641B (en) * | 2008-04-11 | 2013-03-20 | 上海市机械制造工艺研究所有限公司 | Zircon powder alcohol group dope |
| CN103113121A (en) * | 2012-03-01 | 2013-05-22 | 辽宁工业大学 | Method for preparing refractory material through utilizing metallurgical furnace titanium slag |
| CN103252445A (en) * | 2013-04-25 | 2013-08-21 | 吴江市液铸液压件铸造有限公司 | Coating for die cavity surface |
| CN103480796A (en) * | 2013-10-12 | 2014-01-01 | 青海三工镁业有限公司 | Magnesium and magnesium alloy ingot mold release agent and preparation method thereof |
| CN103551495A (en) * | 2013-10-17 | 2014-02-05 | 湖北三新硅业有限责任公司 | High temperature-resistant de-molding paint as well as preparation method thereof |
| 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 |
| CN103878301A (en) * | 2014-03-03 | 2014-06-25 | 安徽华通铸业有限公司 | Paint for iron casting surface coatings |
| CN104907488A (en) * | 2015-06-25 | 2015-09-16 | 苏州明志科技有限公司 | Anti-crack sand mold coating |
| CN107321910A (en) * | 2017-07-03 | 2017-11-07 | 李吕军 | Cracking resistance coating agent for model casting casting and preparation method thereof |
| CN107737868A (en) * | 2017-11-08 | 2018-02-27 | 湖北工程职业学院 | A kind of water base lost foam paint of high intensity and preparation method thereof |
| CN108515141A (en) * | 2018-04-26 | 2018-09-11 | 贵阳灵峰铸造材料有限公司 | Novel casting coating and preparation method thereof for heavy castings and cylinder block and head |
| CN110625063A (en) * | 2019-10-11 | 2019-12-31 | 柳州市顺昇机械有限公司 | V-method casting process for producing engineering machinery counterweight block |
| CN112570644A (en) * | 2020-12-09 | 2021-03-30 | 安徽信息工程学院 | Coating and preparation method thereof |
| CN112605335A (en) * | 2020-12-09 | 2021-04-06 | 安徽信息工程学院 | Coating material and preparation method thereof |
| CN114769503A (en) * | 2022-04-06 | 2022-07-22 | 中国第一汽车股份有限公司 | Coating for sand core of gray iron cylinder body of automobile engine and preparation method of coating |
-
1993
- 1993-02-15 CN CN 93110103 patent/CN1082466A/en active Pending
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049166C (en) * | 1997-10-08 | 2000-02-09 | 冶金工业部钢铁研究总院 | Coating for casting thin foundry goods |
| CN1102165C (en) * | 1999-08-23 | 2003-02-26 | 蒋德奎 | High-strength quick-solidifying refractory adhesive |
| CN100409973C (en) * | 2005-05-25 | 2008-08-13 | 霍万福 | Water base paint special for resin sand automobile mould full mold casting |
| CN100347257C (en) * | 2006-03-16 | 2007-11-07 | 沈阳金安铸造材料厂 | Water-based dipping paint without pollution |
| CN100436000C (en) * | 2007-01-24 | 2008-11-26 | 中国重型汽车集团有限公司 | Water borne coating for metal mold casting and its prepn. |
| CN101554641B (en) * | 2008-04-11 | 2013-03-20 | 上海市机械制造工艺研究所有限公司 | Zircon powder alcohol group dope |
| CN101259517B (en) * | 2008-04-14 | 2010-06-09 | 戚建明 | Double-roller rolling strip steel machine side seal board surface recombination coating and its preparation method and spraying coating method |
| CN101890475A (en) * | 2010-01-27 | 2010-11-24 | 上海市机械制造工艺研究所有限公司 | Water-based zircon powder quick drying paint for ultra-large steel casting |
| CN101890475B (en) * | 2010-01-27 | 2015-05-13 | 上海市机械制造工艺研究所有限公司 | Water-based zircon powder quick drying paint for ultra-large steel casting |
| CN101941048B (en) * | 2010-09-03 | 2012-07-04 | 吴江市液铸液压件铸造有限公司 | Graphite paste coating |
| CN101941048A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Graphite paste coating |
| CN101982254A (en) * | 2010-11-23 | 2011-03-02 | 东华大学 | Yellow soil-base sinter-strippable casting coating and preparation method thereof |
| 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 |
| CN102049464B (en) * | 2011-01-26 | 2012-07-04 | 东风汽车有限公司 | Special coating for full mold casting and preparation method thereof |
| CN102328018A (en) * | 2011-10-28 | 2012-01-25 | 上海市机械制造工艺研究所有限公司 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
| CN102407279B (en) * | 2011-11-29 | 2013-09-11 | 宁波兴柯汽车新材料科技有限公司 | Method for preparing water-based coating for sand mold casting |
| CN102407279A (en) * | 2011-11-29 | 2012-04-11 | 朱小英 | Method for preparing water-based coating for sand mold casting |
| CN103113121B (en) * | 2012-03-01 | 2014-05-07 | 辽宁工业大学 | Method for preparing refractory material through utilizing metallurgical furnace titanium slag |
| CN103113121A (en) * | 2012-03-01 | 2013-05-22 | 辽宁工业大学 | Method for preparing refractory material through utilizing metallurgical furnace titanium slag |
| CN102584297A (en) * | 2012-03-01 | 2012-07-18 | 辽宁工业大学 | Method for preparing fire-proof material from the carbon chromium residue or titanium residue of metallurgy furnace |
| CN102584297B (en) * | 2012-03-01 | 2013-09-18 | 辽宁工业大学 | Method for preparing fire-proof material from the carbon chromium residue or titanium residue of metallurgy furnace |
| CN102836952A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Resin sand type casting coating and preparation method thereof |
| CN102836955A (en) * | 2012-08-31 | 2012-12-26 | 太仓科博尔精密铸业有限公司 | Coating used for casting resin sand |
| CN103252445A (en) * | 2013-04-25 | 2013-08-21 | 吴江市液铸液压件铸造有限公司 | Coating for die cavity surface |
| CN103252445B (en) * | 2013-04-25 | 2015-07-01 | 吴江市液铸液压件铸造有限公司 | Coating for die cavity surface |
| CN103480796A (en) * | 2013-10-12 | 2014-01-01 | 青海三工镁业有限公司 | Magnesium and magnesium alloy ingot mold release agent and preparation method thereof |
| CN103480796B (en) * | 2013-10-12 | 2015-04-29 | 青海三工镁业有限公司 | Magnesium and magnesium alloy ingot mold release agent and preparation method thereof |
| CN103551495B (en) * | 2013-10-17 | 2015-10-28 | 湖北三新硅业有限责任公司 | A kind of high temperature resistant mould wash and preparation method thereof |
| CN103551495A (en) * | 2013-10-17 | 2014-02-05 | 湖北三新硅业有限责任公司 | High temperature-resistant de-molding paint as well as preparation method thereof |
| 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 |
| CN103878301B (en) * | 2014-03-03 | 2016-08-17 | 安徽华通铸业有限公司 | A kind of iron castings face coat coating |
| CN103878301A (en) * | 2014-03-03 | 2014-06-25 | 安徽华通铸业有限公司 | Paint for iron casting surface coatings |
| CN104907488A (en) * | 2015-06-25 | 2015-09-16 | 苏州明志科技有限公司 | Anti-crack sand mold coating |
| CN107321910A (en) * | 2017-07-03 | 2017-11-07 | 李吕军 | Cracking resistance coating agent for model casting casting and preparation method thereof |
| CN107737868A (en) * | 2017-11-08 | 2018-02-27 | 湖北工程职业学院 | A kind of water base lost foam paint of high intensity and preparation method thereof |
| CN108515141A (en) * | 2018-04-26 | 2018-09-11 | 贵阳灵峰铸造材料有限公司 | Novel casting coating and preparation method thereof for heavy castings and cylinder block and head |
| CN110625063A (en) * | 2019-10-11 | 2019-12-31 | 柳州市顺昇机械有限公司 | V-method casting process for producing engineering machinery counterweight block |
| CN112570644A (en) * | 2020-12-09 | 2021-03-30 | 安徽信息工程学院 | Coating and preparation method thereof |
| CN112605335A (en) * | 2020-12-09 | 2021-04-06 | 安徽信息工程学院 | Coating material and preparation method thereof |
| CN114769503A (en) * | 2022-04-06 | 2022-07-22 | 中国第一汽车股份有限公司 | Coating for sand core of gray iron cylinder body of automobile engine and preparation method of coating |
| CN114769503B (en) * | 2022-04-06 | 2023-11-14 | 中国第一汽车股份有限公司 | Coating for gray iron cylinder sand core of automobile engine and preparation method thereof |
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