CN104690218A - Foaming-type fireproof paint used for lost foam - Google Patents
Foaming-type fireproof paint used for lost foam Download PDFInfo
- Publication number
- CN104690218A CN104690218A CN201310649144.5A CN201310649144A CN104690218A CN 104690218 A CN104690218 A CN 104690218A CN 201310649144 A CN201310649144 A CN 201310649144A CN 104690218 A CN104690218 A CN 104690218A
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- Prior art keywords
- parts
- lost foam
- paint
- foaming
- coating
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Classifications
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a foaming-type fireproof paint used for lost foam, which is characterized by comprising the following components by weight: 30-40 parts of chloroprene rubber, 8-12 parts of perchloro-ethylene resin, 18-22 parts of acrylic resin, 6-9 parts of methyl cellulose, 3-5 parts of benzoyl peroxide, 2-4 parts of catalyst, 2-4 parts of dimethicone, 5-7 parts of methacrylic acid, 0.3-0.5 parts of triammonium phosphate, 7-9 parts of polyvinyl alcohol and 0.6-0.8 parts of anhydrous calcium chloride. The paint prepared by components through reasonable matching has low heat conduction coefficient and can delay the ignition speed of the lost foam, the flame retardation effect is obvious; the product belongs to the foaming-type paint, finishing treatment is carried out on the surface of the lost foam material, the formed coating has high bonding intensity, a carburization zone containing flame resistance gas is provided, so that the paint has fireproof effect.
Description
Technical field
The invention belongs to technical field of coatings, be specifically related to a kind of evaporative pattern intumescent coating.
Background technology
Serviceability mainly hot property and the gas permeability of coating for dispellable mould casting, these two determine its effect in casting process.Then need measure and control its viscosity, solids content, gas permeability, pH value etc. in practical operation.Only guarantee that the stable performance of coating is consistent, just can ensure the quality of lost foam casting product.Viscosity is the important indicator weighing paint-flow, although viscosity depends primarily on the composition of coating, also by the impact of whipping process.Gas permeability directly control the speed that foam melts the product effusion of Sum decomposition, thus determines the flowing velocity of liquid metal, and then determines and whether can eliminate pore, cold shut, water generation less than defects such as, carbon distributions.The direct measurement of gas permeability controls particularly important for coating quality.Because coating at high temperature uses, directly measure its gas permeability in a state of use very difficult, existing method is carried out under being normal temperature.The thermal conductivity of coating is most important for the high-quality evaporative pattern foundry goods of acquisition, the many development at coating of measurement of heat conduction Changshu, specific heat, thermal coefficient of expansion etc. instead of in use.
Fireproof coating is for flammable substrates surface, can reduce by the rapid spread of the combustibility of painting material surface, retardance fire, in order to improve by a kind of sapecial coating being coated with material fire endurance, in order to the disaster hidden-trouble of evaporative pattern better can be eliminated, extend the service life of evaporative pattern, need to update the resistance to fuel efficiency fruit of fireproof coating.Current fireproof coating is roughly divided into intumescent coating and Non-foam fireproof paint two kinds.Intumescent coating fireproof principle is when film and heat-flash and flame contact, is formed and can expand into the 100-200 carburization zone including anti-flammability gas doubly, object and flame are separated, thus plays fireproofing function.Non-foam fireproof paint is then produce fire-suppressant gas when utilizing coating and flame contact to reach fire extinguishing function.
Summary of the invention
The object of the present invention is to provide a kind of evaporative pattern intumescent coating, belong to intumescent coating, there is lower thermal conductivity factor, the speed that further delay evaporative pattern catches fire, flame retardant effect is obvious, it is high that the coating formed has adhesion strength, includes the carburization zone of anti-flammability gas, thus play fireproofing function.
The technical scheme that the present invention takes is:
A kind of evaporative pattern intumescent coating, it is characterized in that, feed components is composed as follows according to weight portion:
Neoprene 30-40 part, superchlorinated polyvinyl chloride resin 8-12 part, acrylic resin 18-22 part, methylcellulose 6-9 part, benzoyl peroxide 3-5 part, catalyst 2-4 part, dimethicone 2-4 part, methacrylic acid 5-7 part, phosphoric acid triamine 0.3-0.5 part, polyvinyl alcohol 7-9 part, anhydrous calcium chloride 0.6-0.8 part.
Above-mentioned catalyst is the mixture that ammonium dihydrogen phosphate (ADP) and titanate coupling agent form according to mol ratio 2:1.
Beneficial effect of the present invention is:
1, the reasonably combined obtained coating of each composition of raw material, has lower thermal conductivity factor, and postpone the speed that evaporative pattern catches fire further, flame retardant effect is obvious.
2, product of the present invention belongs to intumescent coating, and carry out covering with paint process to disappearance mold materials surface, it is high that the coating of formation has adhesion strength, includes the carburization zone of anti-flammability gas, thus play fireproofing function.
Detailed description of the invention
Embodiment 1
A kind of evaporative pattern intumescent coating, it is characterized in that, feed components is composed as follows according to weight portion:
The catalyst 2 parts that neoprene 30 parts, superchlorinated polyvinyl chloride resin 8 parts, acrylic resin 18 parts, methylcellulose 6 parts, benzoyl peroxide 3 parts, ammonium dihydrogen phosphate (ADP) and titanate coupling agent form according to mol ratio 2:1, dimethicone 2 parts, methacrylic acid 5 parts, phosphoric acid triamine 0.3 part, polyvinyl alcohol 7 parts, anhydrous calcium chloride 0.6 part.
Embodiment 2
A kind of evaporative pattern intumescent coating, it is characterized in that, feed components is composed as follows according to weight portion:
The catalyst 3 parts that neoprene 35 parts, superchlorinated polyvinyl chloride resin 10 parts, acrylic resin 20 parts, methylcellulose 8 parts, benzoyl peroxide 4 parts, ammonium dihydrogen phosphate (ADP) and titanate coupling agent form according to mol ratio 2:1, dimethicone 3 parts, methacrylic acid 6 parts, phosphoric acid triamine 0.4 part, polyvinyl alcohol 8 parts, anhydrous calcium chloride 0.7 part.
Embodiment 3
A kind of evaporative pattern intumescent coating, it is characterized in that, feed components is composed as follows according to weight portion:
The catalyst 4 parts that neoprene 40 parts, superchlorinated polyvinyl chloride resin 12 parts, acrylic resin 22 parts, methylcellulose 9 parts, benzoyl peroxide 5 parts, ammonium dihydrogen phosphate (ADP) and titanate coupling agent form according to mol ratio 2:1, dimethicone 4 parts, methacrylic acid 7 parts, phosphoric acid triamine 0.5 part, polyvinyl alcohol 9 parts, anhydrous calcium chloride 0.8 part.
Claims (2)
1. an evaporative pattern intumescent coating, is characterized in that, feed components is composed as follows according to weight portion:
Neoprene 30-40 part, superchlorinated polyvinyl chloride resin 8-12 part, acrylic resin 18-22 part, methylcellulose 6-9 part, benzoyl peroxide 3-5 part, catalyst 2-4 part, dimethicone 2-4 part, methacrylic acid 5-7 part, phosphoric acid triamine 0.3-0.5 part, polyvinyl alcohol 7-9 part, anhydrous calcium chloride 0.6-0.8 part.
2. a kind of evaporative pattern intumescent coating according to claim 1, is characterized in that, described catalyst is the mixture that ammonium dihydrogen phosphate (ADP) and titanate coupling agent form according to mol ratio 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649144.5A CN104690218A (en) | 2013-12-06 | 2013-12-06 | Foaming-type fireproof paint used for lost foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649144.5A CN104690218A (en) | 2013-12-06 | 2013-12-06 | Foaming-type fireproof paint used for lost foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104690218A true CN104690218A (en) | 2015-06-10 |
Family
ID=53337980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310649144.5A Pending CN104690218A (en) | 2013-12-06 | 2013-12-06 | Foaming-type fireproof paint used for lost foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104690218A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598357A (en) * | 2016-01-19 | 2016-05-25 | 安徽涌畅铸件有限公司 | Lost foam coating with high fire resistance and preparation method of lost foam coating |
| CN106077442A (en) * | 2016-06-29 | 2016-11-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN106111951A (en) * | 2016-06-29 | 2016-11-16 | 无锡康柏斯机械科技有限公司 | A kind of casting technique of aluminium alloy wheel hub |
| CN106825389A (en) * | 2016-12-19 | 2017-06-13 | 重庆市九明机械制造有限公司 | Lost foam casting coating |
-
2013
- 2013-12-06 CN CN201310649144.5A patent/CN104690218A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598357A (en) * | 2016-01-19 | 2016-05-25 | 安徽涌畅铸件有限公司 | Lost foam coating with high fire resistance and preparation method of lost foam coating |
| CN106077442A (en) * | 2016-06-29 | 2016-11-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN106111951A (en) * | 2016-06-29 | 2016-11-16 | 无锡康柏斯机械科技有限公司 | A kind of casting technique of aluminium alloy wheel hub |
| CN106077442B (en) * | 2016-06-29 | 2018-02-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN106825389A (en) * | 2016-12-19 | 2017-06-13 | 重庆市九明机械制造有限公司 | Lost foam casting coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |