CN87100234A - Masking agent for hot spraying - Google Patents
Masking agent for hot spraying Download PDFInfo
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- CN87100234A CN87100234A CN198787100234A CN87100234A CN87100234A CN 87100234 A CN87100234 A CN 87100234A CN 198787100234 A CN198787100234 A CN 198787100234A CN 87100234 A CN87100234 A CN 87100234A CN 87100234 A CN87100234 A CN 87100234A
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- China
- Prior art keywords
- kaolin
- aluminum oxide
- water
- graphite powder
- grams
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Abstract
The present invention is a kind of masking agent for hot spraying, belongs to the shaded surface material in applied material surface-coated molten state coating (thermospray) usefulness.It is formulated by kaolin, Graphite Powder 99, aluminum oxide powder, acrylic fibers glue and water.Can be used for workpiece surface localized heat metallize or oxide coating.Covering agent of the present invention has the advantages that high temperature resistant flame stream impacts, removes easily, and is non-foaming after pyrolytic coating, do not chap, and figure is complete, the edge is clear.
Description
The present invention is a masking agent for hot spraying, belongs to the shaded surface material in applied material surface coated molten state coating (thermospray surface) usefulness, is the material that the applied material pre-treatment is used.
Molten state coated material spraying (thermospray) technology, for example oxygen-acetylene flame sprayed coating, plasma spraying, discharge (electric arc) spraying etc., all be after coated material (metal or oxide compound) is heated to molten state, high fast direction workpiece surface, form coating, to improve heatproof, wear-resisting, the corrosion resisting property of workpiece.For the part workpiece surface that on workpiece, obtains needed spraying figure and size, hide not need to spray.The method that hides mainly contains two kinds: mask method and squeegee process.The former is as figure mask (for example Japanese kokai publication sho 61-170553, DE3601319 and patent families Japanese kokai publication sho 61-166962,61-171964) with the photo-resist of tinsel or brushing heatproof.This method cost height, the preparation of mask and fixing all very difficult, thereby big at workpiece, inapplicable under the quantity situation how.Squeegee process is on the surface that does not need to spray at workpiece with the covering agent brushing.This covering agent must satisfy two primary conditions: the washing away of (1) is high temperature resistant flame stream, when the hot flame stream with the fused coating medium washes away workpiece surface at a high speed, require covering agent do not burn, do not chap, indeformable.(2) be easy to remove.No matter be (covering agent of mummification) or the covering agent of spraying back (behind the high temperature sintering) before the spraying, all should easily remove.English Patent GB1491604 had once reported a kind of masking agent for hot spraying, and its composition is the wilkinite of methyl fiber, china clay, a wilkinite 27(close organism treated cation), yellow ochre, Graphite Powder 99 and water.This covering agent composition complexity, and methyl fiber and wilkinite 27 be two kinds of special agents, domestic still do not have this series products.
The objective of the invention is with inexpensive domestic raw material preparation masking agent for hot spraying.
The present invention tempers and forms with kaolin, Graphite Powder 99, aluminum oxide powder, acrylic fibers glue.The weight ratio of kaolin, Graphite Powder 99 and aluminum oxide powder is 100: 3-7: 2-5, its granularity is less than 10 μ m.Particle is thin more, and effect is good more, but corresponding cost up.Consider two factors of effect and cost, generally adopt 6-10 μ m for well.The mixture of per 100 gram kaolin, Graphite Powder 99 and aluminum oxide powders is equipped with 150-270cm
3Acrylic fibers glue, add water 200-400cm
3Its viscosity is to be suitable for brushing for well.Can allow its seasoning or oven dry after the brushing, also can carry out thermospray when wet little.
Covering agent of the present invention is if the preparation time passes for a long time during mummification, only need add water and stir and can recover its performance and be convenient to brushing.After thermospray, only need it to be brushed away with hard brush, water washes away then easier removing.
Covering agent of the present invention not only can be used as the covering agent of thermospray (oxygen-acetylene flame sprayed coating, general plasma spraying or electric arc spraying) metallic coating, and can be used as the covering agent of high-temperature plasma spraying oxide coating (for example aluminum oxide, zirconium white, chromic oxide etc.).It is non-foaming, do not ftracture under the impact of hot flame stream.Directly placing 1000 ℃ High Temperature Furnaces Heating Apparatus without any pretreated workpiece that scribbles covering agent, crackle does not appear yet.
Fig. 1 (photo) is the covering agent pattern line of brushing by hand, the situation after plasma sprayed aluminum.Black partly is covering agent among the figure.As seen from the figure, after the high-temperature plasma spraying, the covering agent figure is complete, and the edge is clear.This shows that the high temperature resistant impact property of covering agent of the present invention is splendid.Have the advantages that construction (brushing) is convenient, be easy to remove.
Embodiment 1:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 20 grams: 15 gram: 800cm
3: 1000cm
3
The present embodiment modest viscosity.
Embodiment 2:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 25 grams: 20 gram: 700cm
3: 1500cm
3
Present embodiment viscosity is less.
Embodiment 3:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 15 grams: 10 gram: 1000cm
3: 1000cm
3
This embodiment viscosity is bigger.
Claims (6)
1, a kind of masking agent for hot spraying that contains Graphite Powder 99 and water, special card of the present invention is that the composition of covering agent is:
Kaolin, Graphite Powder 99, aluminum oxide powder, acrylic fibers glue and water.
2, by the described covering agent of claim 1, it is characterized in that the prescription of listed composition is:
The weight ratio of kaolin, Graphite Powder 99, aluminum oxide powder mixture is
100∶3-7∶2-5
Per 100 gram said mixtures add acrylic fibers glue 150-270cm
3, water 200-400cm
3
3, by claim 1 or 2 described covering agents, the granularity that it is characterized in that kaolin, Graphite Powder 99 and aluminum oxide powder is preferably 6-10 μ m less than 10 μ m.
4,, it is characterized in that prescription is by claim 1 or 2 described covering agents:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 20 grams: 15 gram: 800cm
3: 1000cm
3
5, by claim 1 or 2 described covering agents, it is characterized in that its prescription is:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 25 grams: 20 gram: 700cm
3: 1000cm
3
6, by claim 1 or 2 described covering agents, it is characterized in that its prescription is:
Kaolin: Graphite Powder 99: aluminum oxide powder: acrylic fibers glue: water
=400 grams: 15 grams: 10 gram: 1000cm
3: 1000cm
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787100234A CN87100234A (en) | 1987-02-19 | 1987-02-19 | Masking agent for hot spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787100234A CN87100234A (en) | 1987-02-19 | 1987-02-19 | Masking agent for hot spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87100234A true CN87100234A (en) | 1988-09-21 |
Family
ID=4812776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787100234A Pending CN87100234A (en) | 1987-02-19 | 1987-02-19 | Masking agent for hot spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87100234A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904068A (en) * | 2015-02-20 | 2016-08-31 | 福特全球技术公司 | PTWA coating on pistons and/or cylinder heads and/or cylinder bores |
| CN105936775A (en) * | 2016-06-23 | 2016-09-14 | 中国人民解放军第五七九工厂 | Method for protecting non-sprayed surface in hot spraying |
| CN106280976A (en) * | 2016-08-31 | 2017-01-04 | 株洲中航动科南方燃气轮机成套制造安装有限公司 | Thermal spraying frock clamp protective coating, means of defence and application |
| CN106566294A (en) * | 2016-10-27 | 2017-04-19 | 中国人民解放军第五七九工厂 | Part non-spraying surface protection material, preparation method thereof and application thereof |
-
1987
- 1987-02-19 CN CN198787100234A patent/CN87100234A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904068A (en) * | 2015-02-20 | 2016-08-31 | 福特全球技术公司 | PTWA coating on pistons and/or cylinder heads and/or cylinder bores |
| CN105936775A (en) * | 2016-06-23 | 2016-09-14 | 中国人民解放军第五七九工厂 | Method for protecting non-sprayed surface in hot spraying |
| CN106280976A (en) * | 2016-08-31 | 2017-01-04 | 株洲中航动科南方燃气轮机成套制造安装有限公司 | Thermal spraying frock clamp protective coating, means of defence and application |
| CN106280976B (en) * | 2016-08-31 | 2019-07-02 | 株洲中航动科南方燃气轮机成套制造安装有限公司 | Thermal spraying frock clamp protective coating, means of defence and application |
| CN106566294A (en) * | 2016-10-27 | 2017-04-19 | 中国人民解放军第五七九工厂 | Part non-spraying surface protection material, preparation method thereof and application thereof |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |