CN102513528A - Self-fluxing cobalt-chromium-tungsten alloy powder - Google Patents
Self-fluxing cobalt-chromium-tungsten alloy powder Download PDFInfo
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- CN102513528A CN102513528A CN2011104238975A CN201110423897A CN102513528A CN 102513528 A CN102513528 A CN 102513528A CN 2011104238975 A CN2011104238975 A CN 2011104238975A CN 201110423897 A CN201110423897 A CN 201110423897A CN 102513528 A CN102513528 A CN 102513528A
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Abstract
The invention belongs to the metallurgy industry, and particularly relates to a self-fluxing cobalt-chromium-tungsten alloy powder, which is used for increasing hardness of metal surface materials, improving corrosion resistance and wear resistance of the metal surface materials and prolonging the service life of equipment. The self-fluxing cobalt-chromium-tungsten alloy powder is characterized by comprising raw materials, by weight percentage, 40% of cobalt, 22% of chromium and 38% of tungsten, and is prepared by mixing 26% of the cobalt, chromium and tungsten mixture with 74% of iron powder according to the volume percentage. With the self-fluxing cobalt-chromium-tungsten alloy powder, the surface hardness of alloyed metal materials can be higher than 58HRC (Rockwell C hardness) while the wear resistance is increased by 30-50 times as compared with that of the original metal materials.
Description
Technical field
The invention belongs to hardness, the raising corrosion-resistant and wearability of metallurgy industry in order to improve the metal surface material, the alloy powder that prolongation equipment uses is particularly about a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder.
Background technology
Along with national economy is fast-developing, the coal industry also increases with the cement sectors demand day by day, and construction of coal mine is at large-scale development, the colliery with column demand every year all about up to ten thousand, cement plant roll more or less a hundred, so it is very big to keep in repair market.Increasing utilizes our alloy powder cladding and technique for overlaying; Column repair in the process use in the weld deposit process with roll alloy powder have cobalt chromium tungsten powder proportion low weight in weld deposit process cobalt, chromium, tungsten powder fly upward the content that has reduced cobalt, chromium, tungsten and can not make it reach optimum performance, for this reason our specialize the welding block of cobalt-chromium-tungsten alloy self-fluxing nature powder.
Summary of the invention
The purpose of this invention is to provide a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder, it can overcome above deficiency, improves hardness, corrosion and the wearability of metal surface material, prolongs the service life of equipment.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder is provided, it is characterized in that: it is synthetic by following raw materials by weight percent; Co cobalt 40%; Cr chromium 22%; W tungsten 38%; By volume percentage will be handled mixed cobalt chromium tungsten 26% and the processing of 74% iron powder mix again.
Above-mentioned a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder preparing process process is:
1, cobalt chromium tungsten is pressed according to Co cobalt 40%; Cr chromium 22%; W tungsten 38% weight ratio was mixed, and mixture is under-0.08 condition in vacuum, with insulation under 120 ± 5 ℃ the temperature two hours;
2, iron powder was under-0.08 condition in vacuum also, with insulation under 120 ± 5 ℃ the temperature two hours;
3, account for 26% preparation of whole volume again by the volume of cobalt chromium tungsten;
4, account for 26% of cumulative volume by total volume percent cobalt chromium tungsten, all the other 74%Fe iron powder mix;
5,4 mixed cobalt chromium tungsten powders, iron powder were mixed 8-12 hours in the three-dimensional rotation batch mixer;
6, put mixed cobalt chromium tungsten powder, iron powder into ball mill-24 ℃ to-30 ℃ ball millings 8-10 hours then;
7, the cobalt-chromium-tungsten alloy self-fluxing nature powder behind the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation under 120 ± 5 ℃ the temperature.
The present invention compared with prior art, advantage and effect that the present invention has are following:
This cobalt-chromium-tungsten alloy self-fluxing nature of the present invention powder is that a kind of equipment corrosion that is applied to coal mining and cement sectors, wear-resisting, hardness improve greatly, and also the time of having practiced thrift has been improved production efficiency simultaneously, thereby has improved profit.
Technical parameter and performance indications compare:
Hardness: original metal material surface hardness is 40～45HRC;
Metal of alloying material surface hardness of the present invention is＞58HRC;
Wearability: improve 30～50 times than original metal material wearability.
The specific embodiment:
Cobalt-chromium-tungsten alloy self-fluxing nature powder of the present invention is a kind of pipeline internal corrosion and molten multiple material of the coating of repairing the hole point of being applied to, and also is the hardfacing materials of roll outer surface.
This cobalt-chromium-tungsten alloy self-fluxing nature of embodiment powder, it is synthetic by following raw materials by weight percent; Co cobalt 40%; Cr chromium 22%; W tungsten 38%; By volume percentage will be handled mixed cobalt chromium tungsten 26% and the processing of 74% iron powder mix again.
Above-mentioned a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder preparing process process is:
1, cobalt chromium tungsten is pressed according to Co cobalt 40%; Cr chromium 22%; W tungsten 38% weight ratio was mixed, and mixture is under-0.08 condition in vacuum, with insulation under 120 ± 5 ℃ the temperature two hours;
2, iron powder was under-0.08 condition in vacuum also, with insulation under 120 ± 5 ℃ the temperature two hours;
3, account for 26% preparation of whole volume again by the volume of cobalt chromium tungsten;
4, account for 26% of cumulative volume by total volume percent cobalt chromium tungsten, all the other 74%Fe iron powder mix;
5,4 mixed cobalt chromium tungsten powders, iron powder were mixed 8-12 hours in the three-dimensional rotation batch mixer;
6, put mixed cobalt chromium tungsten powder, iron powder into ball mill-24 ℃ to-30 ℃ ball millings 8-10 hours then;
7, the cobalt-chromium-tungsten alloy self-fluxing nature powder behind the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation under 120 ± 5 ℃ the temperature.
Claims (2)
1. cobalt-chromium-tungsten alloy self-fluxing nature powder is characterized in that: it is synthetic by following raw materials by weight percent; Co cobalt 40%; Cr chromium 22%; W tungsten 38%; By volume percentage will be handled mixed cobalt chromium tungsten 26% and the processing of 74% iron powder mix again.
2. above-mentioned a kind of cobalt-chromium-tungsten alloy self-fluxing nature powder preparing process process is:
1, cobalt chromium tungsten is pressed according to Co cobalt 40%; Cr chromium 22%; W tungsten 38% weight ratio was mixed, and mixture is under-0.08 condition in vacuum, with insulation under 120 ± 5 ℃ the temperature two hours;
2, iron powder was under-0.08 condition in vacuum also, with insulation under 120 ± 5 ℃ the temperature two hours;
3, account for 26% preparation of whole volume again by the volume of cobalt chromium tungsten;
4, account for 26% of cumulative volume by total volume percent cobalt chromium tungsten, all the other 74%Fe iron powder mix;
5,4 mixed cobalt chromium tungsten powders, iron powder were mixed 8-12 hours in the three-dimensional rotation batch mixer;
6, put mixed cobalt chromium tungsten powder, iron powder into ball mill-24 ℃ to-30 ℃ ball millings 8-10 hours then;
7, the cobalt-chromium-tungsten alloy self-fluxing nature powder behind the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation under 120 ± 5 ℃ the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104238975A CN102513528A (en) | 2011-12-18 | 2011-12-18 | Self-fluxing cobalt-chromium-tungsten alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104238975A CN102513528A (en) | 2011-12-18 | 2011-12-18 | Self-fluxing cobalt-chromium-tungsten alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102513528A true CN102513528A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104238975A Pending CN102513528A (en) | 2011-12-18 | 2011-12-18 | Self-fluxing cobalt-chromium-tungsten alloy powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959365A (en) * | 2022-02-22 | 2022-08-30 | 中国舰船研究设计中心 | Novel CoCrW-based self-lubricating composite material and preparation method thereof |
-
2011
- 2011-12-18 CN CN2011104238975A patent/CN102513528A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959365A (en) * | 2022-02-22 | 2022-08-30 | 中国舰船研究设计中心 | Novel CoCrW-based self-lubricating composite material and preparation method thereof |
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Application publication date: 20120627 |