CN1006305B - Plasma spray coating material for strengthening piston ring surfaces - Google Patents
Plasma spray coating material for strengthening piston ring surfacesInfo
- Publication number
- CN1006305B CN1006305B CN86106714A CN86106714A CN1006305B CN 1006305 B CN1006305 B CN 1006305B CN 86106714 A CN86106714 A CN 86106714A CN 86106714 A CN86106714 A CN 86106714A CN 1006305 B CN1006305 B CN 1006305B
- Authority
- CN
- China
- Prior art keywords
- piston ring
- strengthening
- present
- performance
- spray coating
- 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.)
- Expired
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention relates to a plasma spraying technique. Plasma spray coating materials for strengthening the surface of a piston ring manufacture a spreading and strengthening layer at the surface of a piston ring. The abrasive resistance, the self running-in characteristics and the performance for resisting scuff wear of the present invention are superior to the abrasive resistance, the self running-in characteristics and the performance for resisting scuff wear of a chrome plating piston ring. Because the melting point and the heat conduction coefficient of a coating are high, certain porosity exists, and oil attaching performance is good, the service life of a cylinder sleeve is improved. Compared with a chromium plating process, the present invention has the advantages of short periodicity, low waste product rate, little environmental pollution, low productive cost, etc. The present invention can also use the plasma spraying technique for manufacturing spreading and strengthening layers at the surfaces of other steel parts.
Description
The present invention relates to a kind of plasma spray coating material for strengthening piston ring surfaces that is used for hot-spraying techniques.
For a long time, both at home and abroad the strengthening piston ring process application is the widest is chrome-faced, because chromium coating has the hardness height, and advantage such as wear-resisting and corrosion-resistant.But, along with engine constantly develops to high-power, high rotating speed, high compression ratio direction, chrome plated piston ring more and more can not adapt to the requirement of new operating mode, its major cause is the attached oily poor performance of chromium coating, scuff wear takes place under high temperature, high pressure and boundary friction condition easily, there is current efficiency low (12～15%) in chrome-plated process in addition, and the production cycle long (3.5～4 hours) is about scrap rate height (20%).Environmental pollution is serious, shortcomings such as " three wastes " difficult treatment and facility investment height.And the application plasma spraying technology at the reinforcement overlay that the piston ring surface preparation has property, can overcome the shortcoming that adopts chrome-plated process to exist.The objective of the invention is provides material prescription for the strengthening piston ring plasma sprayed coating.
First prescription is (weight percent):
Molybdenum (Mo) 61.75～68.25%; Carbon (C) 0.19～0.21%; Chromium (Cr) 3.80～4.20%; Nickel (Ni) 17.86～19.74%; Boron (B) 0.83～0.92; Silicon (Si) 1.07～1.18%; Aluminum oxide (2-Al
2O
3) 9.5～10.5%.
Second prescription is (weight percent):
Molybdenum (Mo) 61.75～68.25%; Carbon (C) 0.02～0.03%; Chromium (Cr) 4.99～5.51%; Tungsten (W) 1.19～1.31%; Boron (B) 0.52～0.58%; Cobalt (Co) 16.56～18.30%; Silicon (Si) 0.48～0.53%;
Aluminum oxide (α-Al
2O
3) 9.5～10.5%.
Adopt the piston ring of plasma spray coating material for strengthening piston ring surfaces strengthening surface of the present invention, its wear resistance, performance from break-in performance and anti-scuff wear all is better than chrome plated piston ring, because the fusing point and the thermal conductivity height of coating, and certain porosity is arranged, attached oiliness is splendid, generally can prolong 20～25% so join secondary lining life with it.And adopt plasma spray coating material for strengthening piston ring surfaces of the present invention to carry out piston ring production, its production cycle will shorten greatly, with regard to spraying process, only need about 25 minutes, be 1/8 of chromium plating operation institute time-consuming, scrap rate is lower than 2%, and environmental pollution alleviates, facility investment saves 4/5 approximately than chrome-plated process, and production cost of products also reduces about 1/3 than chrome plated piston ring.
Enforcement operation of the present invention is as follows:
For every kind of material, can be respectively with molybdenum (Mo) and aluminum oxide (α-Al
2O
3) make powder, again with the i.e. chromium (Cr) in first prescription of the chemical element of all the other components, boron (B), silicon (Si), carbon (C), chromium (Cr) boron (B) in the nickel (Ni) or second prescription, silicon (Si), carbon (C), tungsten (W), unified respectively mixed smelting such as cobalt (Co) is made the low melting point alloy powder, at last molybdenum powder, aluminum oxide powder and low melting point alloy powder three is screened mechanical the mixing in back and is plasma spray coating material for strengthening piston ring surfaces of the present invention, can use plasma spraying technology and make the coating strengthening layer on the piston ring surface.
The present invention also can be used for the piece surface that plasma spraying technology makes at steel, cast iron and cast steel material and makes the coating strengthening layer.
Claims (1)
1, use plasma spraying method, the piece surface of making in cast iron and steel, especially the piston ring surface preparation applies the plasma spraying coating material of strengthening layer, mainly by molybdenum, carbon, chromium, boron, silicon and aluminum oxide are formed, and it is characterized in that the proportioning (weight) of various compositions is: molybdenum 61.75～68.25%, carbon 0.19～0.21%, chromium 3.8～4.20%, nickel 17.86～19.74%, boron 0.83～0.92%, silicon 1.07～1.18%, aluminum oxide 9.5～10.5% or proportioning (weight) are: molybdenum 61.75～68.25%, carbon 0.02～0.03% chromium 4.99～5.51%, tungsten 1.19～1.31%, boron 0.52～0.58%, cobalt 16.56～18.30%, silicon 0.48～0.53%, aluminum oxide 9.5～10.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106714A CN1006305B (en) | 1986-09-28 | 1986-09-28 | Plasma spray coating material for strengthening piston ring surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106714A CN1006305B (en) | 1986-09-28 | 1986-09-28 | Plasma spray coating material for strengthening piston ring surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86106714A CN86106714A (en) | 1988-04-13 |
| CN1006305B true CN1006305B (en) | 1990-01-03 |
Family
ID=4803332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86106714A Expired CN1006305B (en) | 1986-09-28 | 1986-09-28 | Plasma spray coating material for strengthening piston ring surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006305B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119721A (en) * | 2016-07-29 | 2016-11-16 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of ageing-resistant composite coating piston ring for combustion engines |
| CN106086628A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high lubrication composite coating piston ring for combustion engines |
| CN106077663A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of nanometer yttrium aluminum garnet fiber composite coating piston ring for combustion engines |
| CN106077662A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high temperature resistant composite coating piston ring for combustion engines |
| CN106222563A (en) * | 2016-07-29 | 2016-12-14 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high strength composite coating piston ring for combustion engines |
| CN106319430A (en) * | 2016-10-10 | 2017-01-11 | 扬州大学 | Preparation method of remanufactured coating for inner wall of air cylinder sleeve |
| CN108754394A (en) * | 2018-05-25 | 2018-11-06 | 安徽尚忠活塞环有限公司 | A kind of piston ring face processing method using aluminium oxide |
-
1986
- 1986-09-28 CN CN86106714A patent/CN1006305B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86106714A (en) | 1988-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |