CN104059399A - Nuclear power reheat double-valve group valve rod surface wear resistant coating material - Google Patents
Nuclear power reheat double-valve group valve rod surface wear resistant coating material Download PDFInfo
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- CN104059399A CN104059399A CN201410279965.9A CN201410279965A CN104059399A CN 104059399 A CN104059399 A CN 104059399A CN 201410279965 A CN201410279965 A CN 201410279965A CN 104059399 A CN104059399 A CN 104059399A
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Abstract
The invention provides a nuclear power reheat double-valve group valve rod surface wear resistant coating material, which includes: 92% by mass of Ni60, 2-6% by mass of MoS2 and 2-6% by mass of graphite. The Ni60 powder size is in the range of 140-325 meshes, and the Ni60 comprises the following components by mass: 1.0-0.6% of C, 17-14% of Cr, 4.5-2.5% of B, 4.5-3% of Si, 0-15% of Fe, and the balance Ni. The MoS2 has a particle size of 300 meshes and purity of over 98%. The graphite has a particle size of 400 meshes and purity of 99%. Based on Ni60 as the main raw material, the wear resistant coating material is added with MoS2 and graphite with excellent lubrication performance, and the composition proportion of original Ni60 powder is changed, so that the final coating presents a polyphase structure. The composition and composition proportion of the Ni60 raw material are improved. The coating material is applicable to high temperature and easy adhesive wear conditions, and has wear resistance performance about 3 times that of a CoCrW surfacing layer.
Description
Technical field
The present invention relates to mechanical manufacturing field, be specifically related to the valve rod part that uses in nuclear power valve equipment, particularly a kind of nuclear power hot bivalve group valve rod face anti-scuff coating material again.
Background technology
Hot bivalve group sliding friction pair is the key part of bivalve group again, and its valve rod is for the flap of sutaining valve group, and valve rod is connected with flap, by the adjusting of control loop, realize the closure of valve and open, because the air pressure passing through in valve is high, so the pressure that valve rod bears is very large.Very easily there is adhesive wear in the stem surface that existing method produces.Be mainly because hot bivalve group valve rod is again in the condition work of unlubricated, alternating pressure, after a large amount of wearing and tearing of stem surface, cause component to coordinate and lost efficacy, end of life.The valve rod life-span that traditional technology is manufactured is too short, the therefore valve rod part of domestic conventional high-end hot bivalve group again dependence on import mostly, and cost is very high.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of nuclear power hot bivalve group valve rod face anti-scuff coating material is again provided, it is applicable to high temperature and longer service life very easily occurs under the specified conditions of adhesive wear.
The present invention is achieved through the following technical solutions:
Nuclear power is a hot bivalve group valve rod face anti-scuff coating material again, comprising: the MoS that the Ni60 that mass percent is 92%, mass percent are 2～6%
2with the mass percent graphite that is 2～6%;
The powder size of described Ni60 is between 140-325 order, and the component of Ni60 and mass percentage content are: C:1.0～0.6%, Cr:17～14%, B:4.5～2.5%, Si:4.5～3%, Fe:0～15%, and all the other are Ni;
Described MoS
2granularity be 300 orders, purity is greater than 98%;
The granularity of described graphite is 400 orders, and purity is 99%.
Preferably, described nuclear power hotter bivalve group valve rod face anti-scuff coating material comprise that mass percent is 92% Ni60, the MoS that mass percent is 2%
2with the mass percent graphite that is 6%.
Preferably, described nuclear power hotter bivalve group valve rod face anti-scuff coating material comprise that mass percent is 92% Ni60, the MoS that mass percent is 4%
2with the mass percent graphite that is 4%.
Preferably, described nuclear power hotter bivalve group valve rod face anti-scuff coating material comprise that mass percent is 92% Ni60, the MoS that mass percent is 6%
2with the mass percent graphite that is 2%.
The present invention be take on the basis that Ni60 is main raw material, material MoS2 and the graphite with fabulous lubricity have not only been added, and changed the composition proportion of original Ni60 powder, make final coating structure present polyphase structure, improve composition and the composition proportion of Ni60 raw material, make it possess the internal condition of the internal organizational structure formation that meets use properties requirement, this coated material is applicable to high temperature and very easily occurs under the condition of adhesive wear, is 3 times of left and right of the wear resisting property of CoCrW overlay cladding.
Embodiment
For understanding better the present invention, below in conjunction with embodiment, the invention will be further described, but embodiments of the present invention are not limited only to this.
Embodiment 1:
Nuclear power is a hot bivalve group valve rod face anti-scuff coating material again, and each constituent mass per-cent is: Ni60:92%, MoS2:2%, graphite: 6%.
Embodiment 2:
Nuclear power is a hot bivalve group valve rod face anti-scuff coating material again, and each constituent mass per-cent is: Ni60:92%, MoS2:4%, graphite: 4%.
Embodiment 3:
Nuclear power is a hot bivalve group valve rod face anti-scuff coating material again, and each constituent mass per-cent is: Ni60:92%, MoS2:6%, graphite: 2%.
Requirement to starting powder in above-mentioned powder has: Ni60 powder size is between 140-325 order, and its component and mass percentage content thereof are: C1.0～0.6, and Cr17～14, B4.5～2.5, Si4.5～3, Fe≤15, all the other are Ni; Graphite particle size is about 400 orders, and purity is 99%; MoS
2granularity is about 300 orders, and purity is greater than 98%, contains inevitable trace impurity in above-mentioned powder.
In the ratio in above-mentioned example, prepare raw material powder, adopt IPG optical fiber laser to carry out cladding forming to powder, prepared coating has good high-temperature stability and antistick polishing machine, and use temperature is more than normal temperature to 350 ℃.Wear resisting property, far above 304 stainless steels, reaches 3 times of left and right of CoCrW overlay cladding wear resisting property, possesses excellent wear resisting property.
Claims (4)
1. a nuclear power hot bivalve group valve rod face anti-scuff coating material again, is characterized in that, comprising: the MoS that the Ni60 that mass percent is 92%, mass percent are 2～6%
2with the mass percent graphite that is 2～6%;
The powder size of described Ni60 is between 140-325 order, and the component of Ni60 and mass percentage content are: C:1.0～0.6%, Cr:17～14%, B:4.5～2.5%, Si:4.5～3%, Fe:0～15%, and all the other are Ni;
Described MoS
2granularity be 300 orders, purity is greater than 98%;
The granularity of described graphite is 400 orders, and purity is 99%.
2. nuclear power according to claim 1 hot bivalve group valve rod face anti-scuff coating material again, is characterized in that, comprises that mass percent is 92% Ni60, the MoS that mass percent is 2%
2with the mass percent graphite that is 6%.
3. nuclear power according to claim 1 hot bivalve group valve rod face anti-scuff coating material again, is characterized in that, comprises that mass percent is 92% Ni60, the MoS that mass percent is 4%
2with the mass percent graphite that is 4%.
4. nuclear power according to claim 1 hot bivalve group valve rod face anti-scuff coating material again, is characterized in that, comprises that mass percent is 92% Ni60, the MoS that mass percent is 6%
2with the mass percent graphite that is 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279965.9A CN104059399A (en) | 2014-06-20 | 2014-06-20 | Nuclear power reheat double-valve group valve rod surface wear resistant coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279965.9A CN104059399A (en) | 2014-06-20 | 2014-06-20 | Nuclear power reheat double-valve group valve rod surface wear resistant coating material |
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| Publication Number | Publication Date |
|---|---|
| CN104059399A true CN104059399A (en) | 2014-09-24 |
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ID=51547340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279965.9A Pending CN104059399A (en) | 2014-06-20 | 2014-06-20 | Nuclear power reheat double-valve group valve rod surface wear resistant coating material |
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| CN (1) | CN104059399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641420A (en) * | 2018-05-14 | 2018-10-12 | 江苏久祥汽车电器集团有限公司 | A kind of method of surface of hot working die multicomponent alloy electron beam alloyage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626793A (en) * | 2003-12-10 | 2005-06-15 | 上海三电贝洱汽车空调有限公司 | Sloping cam plate in camplate type compressor and method for painting coat on the sloping cam plate |
| CN102071884A (en) * | 2011-01-26 | 2011-05-25 | 铁岭米勒石油新材料有限公司 | Columnar coupling compound sucker rod centralizer |
| FR2972497A1 (en) * | 2011-03-10 | 2012-09-14 | Peugeot Citroen Automobiles Sa | Jacket, useful for cylinder housing of internal combustion engine, comprises inner cylindrical wall and outer cylindrical wall, where volume defined between inner and outer walls is partially filled with lubricant coating material |
| CN103384728A (en) * | 2011-01-18 | 2013-11-06 | 马勒国际公司 | Thermal spray coating with a dispersion of solid lubricant particles |
-
2014
- 2014-06-20 CN CN201410279965.9A patent/CN104059399A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626793A (en) * | 2003-12-10 | 2005-06-15 | 上海三电贝洱汽车空调有限公司 | Sloping cam plate in camplate type compressor and method for painting coat on the sloping cam plate |
| CN103384728A (en) * | 2011-01-18 | 2013-11-06 | 马勒国际公司 | Thermal spray coating with a dispersion of solid lubricant particles |
| CN102071884A (en) * | 2011-01-26 | 2011-05-25 | 铁岭米勒石油新材料有限公司 | Columnar coupling compound sucker rod centralizer |
| FR2972497A1 (en) * | 2011-03-10 | 2012-09-14 | Peugeot Citroen Automobiles Sa | Jacket, useful for cylinder housing of internal combustion engine, comprises inner cylindrical wall and outer cylindrical wall, where volume defined between inner and outer walls is partially filled with lubricant coating material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641420A (en) * | 2018-05-14 | 2018-10-12 | 江苏久祥汽车电器集团有限公司 | A kind of method of surface of hot working die multicomponent alloy electron beam alloyage |
| CN108641420B (en) * | 2018-05-14 | 2019-10-29 | 江苏久祥汽车电器集团有限公司 | A kind of method of surface of hot working die multicomponent alloy electron beam alloyage |
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Application publication date: 20140924 |