CN104289663B - A kind of high temperature resistant repair paint - Google Patents
A kind of high temperature resistant repair paint Download PDFInfo
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- CN104289663B CN104289663B CN201410523339.XA CN201410523339A CN104289663B CN 104289663 B CN104289663 B CN 104289663B CN 201410523339 A CN201410523339 A CN 201410523339A CN 104289663 B CN104289663 B CN 104289663B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Abstract
The invention discloses a kind of high temperature resistant repair paint.Coating is made up of following raw material: quartz sand, fire clay, sodium tripolyphosphate, cellulose, acrylic resin, zinc stearate 12 20 parts, paraffin and water；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol.The high temperature resistant repair paint of the present invention, has good high-temperature behavior, and raw material sources is extensive, and collapsibility is good, expands the range of coating.The present invention improves the resistance to elevated temperatures of coating by adding fire clay, and coordinated cementation with acrylic resin, zinc stearate and paraffin can play peptizaiton so that coating mix homogeneously, improve the intensity of coating by interpolation sodium tripolyphosphate and cellulose；Wherein, fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol, and fire resistance is good, and has stronger adsorptivity and viscosity, it is possible to meet the requirement of coating.
Description
Technical field
The present invention relates to a kind of high temperature resistant repair paint, belong to foundary industry technical field.
Background technology
Foundry production is generally divided into the links such as sand process, moulding, coremaking, drying, mould assembly, melting, cast, peeling.The cast product that there are about half in actual production needs coremaking, an important step during therefore coremaking is foundry technology process.Using core shooter coremaking is a kind of high efficiency mechanization coremaking mode, and it is for power, with high speed, core sand to be injected core box with compressed air to obtain the core of consolidation.The ad-hoc location that core is fixed in sand mo(u)ld after making is poured into a mould, and after having cast, core has been wrapped in foundry goods, breaks core into pieces, thus forms the chamber portion in foundry goods.
During coremaking, due to tooling device precision, temperature control, there are the reasons such as gap, core box aerofluxus be the most smooth in raw and auxiliary material and core box abrasion, core box, the core surface made is commonly present the defect such as out-of-flatness, misrun, for ensureing the cast product outward appearance precision and the dimensional requirement that produce, need to use mending paste repair the core of existing defects and smear the gap after back-up sand core combines, to prevent foundry goods from producing " fleshiness " and the defect such as fash is excessive, thus improve the product quality of foundry goods, rate of reducing the number of rejects and seconds.In casting process, mending paste is by after the heat effect of molten metal, moisture, Organic substance and some mineral generating gasification in mending paste, so burn, distil, the effect such as decomposition, gas can be produced, portion gas can not escape the most in time, a part is stayed in hole, forms bigger pressure, stops the infiltration of molten metal.If after low melting point remains in and will form sinter layer on cast(ing) surface in mending paste product, if sinter layer adheres to each other with cast(ing) surface, chemical scab will be formed.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of high temperature resistant repair paint.
The present invention is achieved through the following technical solutions:
A kind of high temperature resistant repair paint, is made up of the raw material of following parts by weight: quartz sand 90-110 part, fire clay 25-35 part, sodium tripolyphosphate 10-16 part, cellulose 3-9 part, acrylic resin 11-14 part, zinc stearate 12-20 part, paraffin 3-5 part and water 10-16 part；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol.
Described one is high temperature resistant repair paint, described fire clay is made up of crushed crude pearlite 22-27 part, SILICA FUME 22-27 part, clay 3-8 part, starch 1.5-3.5 part, water 28-32 part and ethanol 5-12 part in terms of parts by weight.
Described one is high temperature resistant repair paint, described crushed crude pearlite is 1:1 with the weight ratio of SILICA FUME.
Described one is high temperature resistant repair paint, described fire clay through the following steps that obtain: the water by 1/3rd is miscible with ethanol, obtain ethanol water, the water of other 2/3rds is heated to 50-55 DEG C, add starch, add crushed crude pearlite after obtaining suspension and SILICA FUME is sufficiently mixed, add clay and be sufficiently stirred for, be eventually adding ethanol water and obtain fire clay.
Described one is high temperature resistant repair paint, described zinc stearate is 4:1 with the weight ratio of paraffin.
Described one is high temperature resistant repair paint, described acrylic resin is thermosetting acrylic resin.
The beneficial effect that the present invention is reached:
The high temperature resistant repair paint of the present invention, has good high-temperature behavior, and raw material sources is extensive, and collapsibility is good, expands the range of coating.
The present invention improves the resistance to elevated temperatures of coating by adding fire clay, and coordinated cementation with acrylic resin, zinc stearate and paraffin can play peptizaiton so that coating mix homogeneously, improve the intensity of coating by interpolation sodium tripolyphosphate and cellulose；Wherein, fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol, and fire resistance is good, and has stronger adsorptivity and viscosity, it is possible to meet the requirement of coating.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Embodiment 1
A kind of high temperature resistant repair paint, is made up of the raw material of following parts by weight: quartz sand 90 parts, fire clay 35 parts, sodium tripolyphosphate 10 parts, cellulose 9 parts, acrylic resin 11 parts, zinc stearate 12 parts, 3 parts of paraffin and 10 parts of water；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol, and wherein, described acrylic resin is thermosetting acrylic resin.
Described fire clay is made up of crushed crude pearlite 22 parts, SILICA FUME 22 parts, clay 3 parts, starch 3.5 parts, 28 parts of water and ethanol 12 parts in terms of parts by weight.
Described fire clay through the following steps that obtain: the water by 1/3rd is miscible with ethanol, obtain ethanol water, the water of other 2/3rds is heated to 55 DEG C, add starch, add crushed crude pearlite after obtaining suspension and SILICA FUME is sufficiently mixed, add clay to be sufficiently stirred for, be eventually adding ethanol water and obtain fire clay.
Embodiment 2
A kind of high temperature resistant repair paint, is made up of the raw material of following parts by weight: quartz sand 110 parts, fire clay 25 parts, sodium tripolyphosphate 16 parts, cellulose 3 parts, acrylic resin 14 parts, zinc stearate 20 parts, 5 parts of paraffin and 16 parts of water；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol, and wherein, described acrylic resin is thermosetting acrylic resin.
Described fire clay is made up of crushed crude pearlite 27 parts, SILICA FUME 27 parts, clay 8 parts, starch 1.5 parts, 32 parts of water and ethanol 5 parts in terms of parts by weight.
Described fire clay through the following steps that obtain: the water by 1/3rd is miscible with ethanol, obtain ethanol water, the water of other 2/3rds is heated to 50 DEG C, add starch, add crushed crude pearlite after obtaining suspension and SILICA FUME is sufficiently mixed, add clay to be sufficiently stirred for, be eventually adding ethanol water and obtain fire clay.
Embodiment 3
A kind of high temperature resistant repair paint, is made up of the raw material of following parts by weight: quartz sand 100 parts, fire clay 28 parts, sodium tripolyphosphate 15 parts, cellulose 6 parts, acrylic resin 13 parts, zinc stearate 16 parts, 4 parts of paraffin and 13 parts of water；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol, and wherein, described acrylic resin is thermosetting acrylic resin.
Described fire clay is made up of crushed crude pearlite 24 parts, SILICA FUME 24 parts, clay 6 parts, starch 2.6 parts, 30 parts of water and ethanol 7 parts in terms of parts by weight.
Described fire clay through the following steps that obtain: the water by 1/3rd is miscible with ethanol, obtain ethanol water, the water of other 2/3rds is heated to 50-55 DEG C, add starch, add crushed crude pearlite after obtaining suspension and SILICA FUME is sufficiently mixed, add clay to be sufficiently stirred for, be eventually adding ethanol water and obtain fire clay.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (5)
1. a high temperature resistant repair paint, it is characterized in that, be made up of the raw material of following parts by weight: quartz sand 90-110 part, fire clay 25-35 part, sodium tripolyphosphate 10-16 part, cellulose 3-9 part, acrylic resin 11-14 part, zinc stearate 12-20 part, paraffin 3-5 part and water 10-16 part；Described fire clay is made up of crushed crude pearlite, SILICA FUME, clay, starch, water and ethanol.
2. according to the high temperature resistant repair paint of the one described in claim 1, it is characterized in that, described fire clay is made up of crushed crude pearlite 22-27 part, SILICA FUME 22-27 part, clay 3-8 part, starch 1.5-3.5 part, water 28-32 part and ethanol 5-12 part in terms of parts by weight.
3. according to the high temperature resistant repair paint of the one described in claim 2, it is characterised in that described crushed crude pearlite is 1:1 with the weight ratio of SILICA FUME.
4. according to the high temperature resistant repair paint of the one described in claim 1 or 2, it is characterized in that, described fire clay through the following steps that obtain: the water by 1/3rd is miscible with ethanol, obtain ethanol water, the water of other 2/3rds is heated to 50-55 DEG C, adds starch, adds crushed crude pearlite and SILICA FUME is sufficiently mixed after obtaining suspension, add clay to be sufficiently stirred for, be eventually adding ethanol water and obtain fire clay.
5. according to the high temperature resistant repair paint of the one described in claim 1, it is characterised in that described acrylic resin is thermosetting acrylic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410523339.XA CN104289663B (en) | 2014-10-08 | 2014-10-08 | A kind of high temperature resistant repair paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410523339.XA CN104289663B (en) | 2014-10-08 | 2014-10-08 | A kind of high temperature resistant repair paint |
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| CN104289663A CN104289663A (en) | 2015-01-21 |
| CN104289663B true CN104289663B (en) | 2016-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014009B (en) * | 2015-07-31 | 2017-05-17 | 宁夏共享模具有限公司 | Material capable of eliminating evaporative pattern surface roughness and preparation method thereof |
| CN107216692A (en) * | 2017-05-19 | 2017-09-29 | 成都亨通兆业精密机械有限公司 | A kind of coating sprayed for camshaft |
| CN112658200B (en) * | 2020-12-11 | 2022-09-23 | 盐城仁创砂业科技有限公司 | Repair paste for resin coated sand core and preparation method |
| CN113290207A (en) * | 2021-04-30 | 2021-08-24 | 宁波明凌科技有限公司 | Large sand mold crack repairing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1438910A2 (en) * | 1987-06-04 | 1988-11-23 | Ростовский-На-Дону Институт Сельскохозяйственного Машиностроения | Composition of protective coating for repair of metallic surface |
| CN101941049A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Quartz powder repair paste |
| CN101954443A (en) * | 2010-09-03 | 2011-01-26 | 吴江市液铸液压件铸造有限公司 | Fire-resistant quartz powder mending paste |
| CN102030541A (en) * | 2010-09-02 | 2011-04-27 | 吴江市液铸液压件铸造有限公司 | Coating for repairing forehearth ladle of casting furnace |
| CN103990764A (en) * | 2014-05-20 | 2014-08-20 | 朝阳佳诚耐火材料有限公司 | Casting sand core repairing paste and preparation method thereof |
-
2014
- 2014-10-08 CN CN201410523339.XA patent/CN104289663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1438910A2 (en) * | 1987-06-04 | 1988-11-23 | Ростовский-На-Дону Институт Сельскохозяйственного Машиностроения | Composition of protective coating for repair of metallic surface |
| CN102030541A (en) * | 2010-09-02 | 2011-04-27 | 吴江市液铸液压件铸造有限公司 | Coating for repairing forehearth ladle of casting furnace |
| CN101941049A (en) * | 2010-09-03 | 2011-01-12 | 吴江市液铸液压件铸造有限公司 | Quartz powder repair paste |
| CN101954443A (en) * | 2010-09-03 | 2011-01-26 | 吴江市液铸液压件铸造有限公司 | Fire-resistant quartz powder mending paste |
| CN103990764A (en) * | 2014-05-20 | 2014-08-20 | 朝阳佳诚耐火材料有限公司 | Casting sand core repairing paste and preparation method thereof |
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| CN104289663A (en) | 2015-01-21 |
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Effective date of registration: 20230822 Address after: 401320 No. 6 East Round Road, Nanpeng Highway Logistics Base, Banan District, Chongqing Patentee after: Chongqing Gretel new building materials Co.,Ltd. Address before: No. 6 Shenta Longjiang Road, Fenhu Economic Development Zone, Wujiang City, Suzhou City, Jiangsu Province, 215213 Patentee before: WU JIANG YE ZHU YE YA JIAN ZHU ZAO Co.,Ltd. |