CN107201061A - A kind of coating for CEMENTED CARBIDE PRODUCTION - Google Patents
A kind of coating for CEMENTED CARBIDE PRODUCTION Download PDFInfo
- Publication number
- CN107201061A CN107201061A CN201610147161.2A CN201610147161A CN107201061A CN 107201061 A CN107201061 A CN 107201061A CN 201610147161 A CN201610147161 A CN 201610147161A CN 107201061 A CN107201061 A CN 107201061A
- Authority
- CN
- China
- Prior art keywords
- coating
- cemented carbide
- tween
- present
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
Abstract
The present invention relates to a kind of coating composition, especially a kind of coating for CEMENTED CARBIDE PRODUCTION；It is made of to use following components and proportioning：Graphite powder 20~40%, tween 4~8%, polyvinyl alcohol 0.2~1.0%, formaldehyde 0.05~0.5%, alumina powder 1~5%, water-soluble glue 0.1~1.0%, distilled water 50~70%；The present invention has adhesive force strong, it is easily dispersed during brushing uniform, the features such as excellent to the antistick characteristic of hard metal article during vacuum-sintering, and preparing process is simple, cost is low, the stability of hart metal product quality can be improved using it, is conducive to the large-scale industrial production of hard alloy, it is good in economic efficiency.
Description
Technical field
The present invention relates to a kind of coating composition, especially a kind of coating for CEMENTED CARBIDE PRODUCTION.
Background technology
It is well known that boat used in vacuum-sintering process needs one kind to prevent product from gluing during CEMENTED CARBIDE PRODUCTION
The coating of boat, with the fast development of hard carbide industry, vacuum sintering technology is progressively widely used, used in its boat
Release coating consumption is also increasing, and kind is also more and more diversified.In general, produce used release coating be by
Graphite powder, tween, buna, distilled water etc. are formulated, but generally existing coating is not strong to the adhesive force of graphite boat,
It is difficult to be uniformly dispersed during brushing, not good enough to the antistick characteristic of hart metal product during vacuum-sintering, product is easily viscous with boat
Knot, causes the serious carburizing of product or local carburzing, causes serious product quality problem, and damage the defects such as boat.
The content of the invention
It is an object of the invention to overcome the shortcomings of conventional release coating, there is provided a kind of preparing process is simple, product quality
The low hard alloy vacuum sintering boat release coating of stable, production cost.
The technical scheme is that realized by following approach, it is made of to use following components and proportioning：Graphite
It is powder 20~40%, tween 4~8%, polyvinyl alcohol 0.2~1.0%, formaldehyde 0.05~0.5%, alumina powder 1~5%, water-soluble
Property glue 0.1~1.0%, distilled water 50~70%.
Compared with conventional technology, the present invention has adhesive force strong, and uniform, vacuum-sintering process is easily dispersed during brushing
In it is excellent to the antistick characteristic of hard metal article the features such as, and preparing process is simple, and cost is low, and can improve hard using it closes
The stability of golden product quality, is conducive to the large-scale industrial production of hard alloy, good in economic efficiency.
Embodiment
Embodiments of the present invention are detailed below, it is made of to use following component and proportioning：Graphite powder 20~
40%th, tween 4~8%, polyvinyl alcohol 0.2~1.0%, formaldehyde 0.05~0.5%, alumina powder 1~5%, water-soluble glue
0.1~1.0%, distilled water 50~70%.
The tween that the present invention is used is Tween 80.
The compound method of the present invention includes the preparation of raw material, by than dispensing, stirring.
1. the preparation of raw material：
All raw materials are ready on request, and polyvinyl alcohol is needed to be dissolved by heating with distilled water in advance, 5% aqueous solution is made；
2. by proportion ingredient：Strictly press recipe requirements, the weight for each component that weighs with scale；
3. stirring：Various components first stir under dry type state in process for preparation, then add distilled water and are stirred using machinery
Mix 4 hours.
The present invention three embodiments be：
Embodiment 1：Graphite powder 30%, tween 6%, polyvinyl alcohol 0.6%, formaldehyde 0.3%, alumina powder 3%, water-soluble glue
0.6%th, distilled water 59.5%.
Embodiment 2：It is graphite powder 30%, tween 8%, polyvinyl alcohol 0.5%, formaldehyde 0.3%, alumina powder 3%, water-soluble
Property glue 0.5%, distilled water 5 7.7%.
Embodiment 3：Graphite powder 2 5%, tween 5%, polyvinyl alcohol 0.8%, formaldehyde 0.08%, alumina powder 3%, water
Soluble gum 0.3%, distilled water 65.82%.
Claims (1)
1. a kind of coating for CEMENTED CARBIDE PRODUCTION, it is characterised in that its component and percentage by weight be：Graphite powder 20
4~8% polyvinyl alcohol of~40% tween, 0.2~1.0% formaldehyde, 0.05~0.5% alumina powder 1~5% is water-soluble
The property distilled water 50~70% of glue 0.1~1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147161.2A CN107201061A (en) | 2016-03-16 | 2016-03-16 | A kind of coating for CEMENTED CARBIDE PRODUCTION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147161.2A CN107201061A (en) | 2016-03-16 | 2016-03-16 | A kind of coating for CEMENTED CARBIDE PRODUCTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107201061A true CN107201061A (en) | 2017-09-26 |
Family
ID=59903519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147161.2A Pending CN107201061A (en) | 2016-03-16 | 2016-03-16 | A kind of coating for CEMENTED CARBIDE PRODUCTION |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107201061A (en) |
-
2016
- 2016-03-16 CN CN201610147161.2A patent/CN107201061A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170926 |