CN1320767A - Nm-class Ti-base ceramic covered piston ring and its method - Google Patents
Nm-class Ti-base ceramic covered piston ring and its method Download PDFInfo
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- CN1320767A CN1320767A CN 01114470 CN01114470A CN1320767A CN 1320767 A CN1320767 A CN 1320767A CN 01114470 CN01114470 CN 01114470 CN 01114470 A CN01114470 A CN 01114470A CN 1320767 A CN1320767 A CN 1320767A
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The titanium based nanometre ceramic coating film on the surface of piston ring is formed by using pure titanium or TiAlZr or TiCrNi as a target material and depositing the titanium based nanometre ceramic with PVD technique. The processing method involves cleaning the piston ring in solution by ultrasonic wave, vacuumizing and heating, passing through Ar gas and voltage glow cleaning, lowering Ar pressure and bombarding the workpiece with the titanium base plasma evaporated out from the target material by voltage arc strike, closing Ar and passing through N2 and gas containing carbon, applying an voltage in periodicity to form a titanium based nanometre ceramic film with the thickness of 3-5 um for increasing the service life of the workpiece to 2-8 times.
Description
The present invention relates to a kind of piston ring surface coating and method thereof, particularly piston ring surface coverage nm-class Ti-base ceramic and method thereof.
Piston ring is daily widely used power accessory, it is to adopt electric plating method to make piston face form chromium coating that the existing piston ring surface is handled, owing to be subjected to chromium coating hardness to be about the restriction of 800HV, and chrome-faced layer and piston ring matrix bond are not firm, wear no resistance is that existing chrome faced piston ring uses inefficacy, the main cause that working life is long, and the chrome-plated process method also is a problem that urgency is to be solved to the severe contamination of environment.
The objective of the invention is to adopt the physical gas-phase deposite method of environmentally safe, promptly the PVD method at piston ring surface deposition nm-class Ti-base ceramic coating, makes itself and piston ring matrix knot firmly, and is wear-resisting, improves working life.Thereby overcome the worn-out sick of prior art chromium plating coating and method thereof.
Technical solution of the present invention is nm-class Ti-base ceramic covered piston ring and method thereof, and piston ring surface deposition nm-class Ti-base ceramic coating forms surface coating, can form deposition on the surface of chromium plating or not chromium plating.The target of surface coating is pure Ti, and impregnation coating is TiCN, is Aubergine, and hardness reaches 2300-3000HV; Target or be TiAlZr contains Al30-50%, and Zr or Nb are 2-5%, and impregnation coating is TiAlZr (CN), is black, and hardness is 2500-4000HV; Target or be TiCrNi contains Cr40-60%, and Ni5-10%, impregnation coating are TiCrNi (CN), are light yellow or atropurpureus, and hardness is 3000-5000HV.The method of nm-class Ti-base ceramic covered piston ring is to adopt PVD vacuum arc deposition mould technology, at piston ring surface deposition nm-class Ti-base ceramic coating, forms surface coating, its method be: carry out following technological method machining piston ring workpiece successively
1) workpiece to be plated is cleaned repeatedly with solvent or pure water and with ultrasound, till confirming that workpiece surface is clean
2) workpiece after will cleaning is packed into and is evacuated to 6.7 * 10 in the vaccum ion coater
-3Pa heats to 200 ℃-400 ℃ again, is incubated 0.5-1 hour then.
3) logical argon Ar makes furnace pressure maintain 5-10Pa to the vaccum ion coater stove, and aura cleaned 30-60 minute under 1000-1500V voltage.
4) then, Ar pressure in the stove is reduced to about 1Pa, striking makes the target evaporation, under 1000-1500V voltage workpiece surface is carried out titanium base mixing plasma bombardment about 30-40 minute.
5) after the affirmation workpiece surface cleans up, close Ar gas, feed the gas of Nz and carbon containing in the stove, acetylene for example, through follow procedure: execute 15 minutes → 600V of 800V voltage and pressed 15 minutes → 50V of 15 minutes → 400V voltage, 15 minutes → 200V voltage, 15 minutes → 100V voltage voltage 30 minutes, when treating that then furnace temperature is reduced to below 60 ℃, workpiece is come out of the stove, workpiece surface can form the nm-class Ti-base ceramic thin-film covering layer of 3-5um, forms surface coating.
Specific embodiments of the invention 1 are:
Example 1: motorcycle piston ring plated film and technological method thereof:
Earlier with solvent or pure water clean → dry → advance stove → be evacuated down to 6 * 10
-3Pa or higher → be heated to 300 ℃ → Ar atmosphere 10p
a* 1500V * 20 minute → pure titanium the target of striking Ar3p
a* 1500V * 30 minute → (N
2+ CH
4) 2P
a* l000V * 15 minute → 800V * 15 minute → 600V * 15 minute → 400V * 15 minute → 200V * 15 minute the second month in a season → 100V * 15 minutes → 50V * 30 minute → be cooled to 60 ℃: obtain Aubergine Ti (CN) film (about 5um), the life-span improves more than 2 times; Be applicable to environmental work below 450 ℃.
Example 2: piston of automobile ring plated film and technological method thereof:
Clean → dry → advance stove → be evacuated down to 6 * 10
-3Pa or higher → be heated to 300 ℃ → Ar atmosphere l0p
a* 1500V * 30 minute → striking TiAlZr target: Ar3p
a* 1500V * 30 minute → (N
2+ CH
4) 2P
a* 1200V * 30 minute → 800V * 15 minute → 600V * 15 minute → 400V * 15 minute → 200V * 15 minute the second month in a season → l00V * 15 minutes → 50V * 30 minute → be cooled to below 60 ℃, obtain atropurpureus TiAlZr (CN) film: the life-span improves more than 3 times; Can in the working environment about 800 ℃, work.
Example 3: the piston of automobile ring of not chromium plating directly plates TiCrNi (CN) plated film and technological method thereof:
Clean → dry → advance stove → be evacuated down to 6.67 * 10
-3Pa is above → is heated to more than 300 ℃ below 400 ℃ → Ar atmosphere 10p
a1500V30 minute → striking TiCrNi target: Ar3p
a* 1200V * 30 minute → (N
2+ CH
4) 3P
a800V * 15 minute → 600V * 15 minute → 400V * 15 minute → 200V * 15 minute → 100V * 30 minute the second month in a season → 50V * 60 minutes → be cooled to below 60 ℃ obtain TiCrNi (CN) film of 5 μ m-7 μ m.The color on top layer can be adjusted.Its hardness, the life-span will be carried more than 2 times than chromium plating.
Advantage of the present invention is to have adopted the PVD technology of the title that have green engineering, and namely physical gas-phase deposite method comes piston Process on the surface, titanium deposition base nano ceramic on piston ring surface, and the thin layer surface coating of formation and matrix metallurgical binding, Its hardness height, strong with basal body binding force, and self-lubricating property is good, can increase substantially Service Life of Piston Ring, with existing skill The chrome faced piston of art is compared, and can improve 2-8 service life doubly, has also improved the life-span that friction is paid simultaneously. Of the present invention The largest benefit of method is environmentally safe.
Claims (5)
1, nm-class Ti-base ceramic covered piston ring is characterized in that piston ring surface deposition nm-class Ti-base ceramic coating, forms surface coating.
2, nm-class Ti-base ceramic covered piston ring according to claim 1, the target that it is characterized in that its surface coating is pure Ti, and impregnation coating is TiCN, is Aubergine, and hardness reaches 2300-3000HV,
3, nm-class Ti-base ceramic covered piston ring according to claim 1 is characterized in that the target of its surface coating is TiAlZr, contains Al30-50%, and Zr or Nb are 2-5%, and impregnation coating is TiAlZr (CN), is black.
4, nm-class Ti-base ceramic covered piston ring according to claim 1 is characterized in that the target of its surface coating is TiCrNi, contains Cr40-60%, and Ni5-10%, impregnation coating are TiCrNi (CN), are light yellow or atropurpureus.
5, the method for nm-class Ti-base ceramic covered piston ring, be to adopt PVD vacuum arc deposition mould technology, at piston ring surface deposition nm-class Ti-base ceramic coating, form surface coating, its method is characterised in that: carry out following technological method machining piston ring workpiece successively
1) workpiece to be plated is cleaned repeatedly with molten Ji or pure water and with ultrasound, till confirming that workpiece surface is clean
2) workpiece after will cleaning is packed into and is evacuated to 6.7 * 10 in the vaccum ion coater
-3Pa heats to 200 ℃-400 ℃ again, is incubated 0.5-1 hour then.
3) logical argon Ar makes to press in the stove to divide to maintain 5-10Pa to the vaccum ion coater stove, and aura cleaned 30-60 minute under 1000-1500V voltage.
4) then, Ar pressure in the stove is reduced to about 1Pa, striking makes the target evaporation, under 1000-1500V voltage workpiece surface is carried out titanium base mixing plasma bombardment about 30-40 minute.
5) after the affirmation workpiece surface cleans up, close Ar gas, feed the gas of N2 and carbon containing in the stove, acetylene for example, through follow procedure: execute 15 minutes → 600V of 800V voltage and pressed 15 minutes → 50V of 15 minutes → 400V voltage, 15 minutes → 200V voltage, 15 minutes → 100V voltage voltage 30 minutes, when treating that then furnace temperature is reduced to below 60 ℃, workpiece is come out of the stove, workpiece surface can form the nm-class Ti-base ceramic thin-film covering layer of 3-5um, forms surface coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01114470XA CN1170956C (en) | 2001-05-18 | 2001-05-18 | Nm-class Ti-base ceramic covered piston ring and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01114470XA CN1170956C (en) | 2001-05-18 | 2001-05-18 | Nm-class Ti-base ceramic covered piston ring and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1320767A true CN1320767A (en) | 2001-11-07 |
| CN1170956C CN1170956C (en) | 2004-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01114470XA Expired - Fee Related CN1170956C (en) | 2001-05-18 | 2001-05-18 | Nm-class Ti-base ceramic covered piston ring and its method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294615C (en) * | 2001-12-21 | 2007-01-10 | 应用材料有限公司 | Method of fabricating coated process chamber component |
| CN102517577A (en) * | 2012-01-12 | 2012-06-27 | 山推工程机械股份有限公司 | Composite material for piston ring coating, piston ring coating and preparation method thereof |
| CN101876060B (en) * | 2009-04-28 | 2014-04-02 | 咸阳恒信纺机器材有限公司 | Vacuum ion coating method for preparing ring |
| CN103696944A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor Ti-based nano-ceramic coating film wear-resistant piston ring |
| CN110344001A (en) * | 2019-08-16 | 2019-10-18 | 青岛滨海学院 | A kind of carbon steel surface corrosion-resistant erosion graded metal coating and preparation method thereof |
-
2001
- 2001-05-18 CN CNB01114470XA patent/CN1170956C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294615C (en) * | 2001-12-21 | 2007-01-10 | 应用材料有限公司 | Method of fabricating coated process chamber component |
| CN101876060B (en) * | 2009-04-28 | 2014-04-02 | 咸阳恒信纺机器材有限公司 | Vacuum ion coating method for preparing ring |
| CN102517577A (en) * | 2012-01-12 | 2012-06-27 | 山推工程机械股份有限公司 | Composite material for piston ring coating, piston ring coating and preparation method thereof |
| CN103696944A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor Ti-based nano-ceramic coating film wear-resistant piston ring |
| CN103696944B (en) * | 2013-12-17 | 2016-02-17 | 成都展望能源机械有限公司 | Combined type compressor nm-class Ti-base ceramic plated film abrasion-proof piston ring |
| CN110344001A (en) * | 2019-08-16 | 2019-10-18 | 青岛滨海学院 | A kind of carbon steel surface corrosion-resistant erosion graded metal coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1170956C (en) | 2004-10-13 |
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Granted publication date: 20041013 Termination date: 20100518 |