CN102094169A - Surface PVD coating method for blade (slip sheet) for novel compressor - Google Patents
Surface PVD coating method for blade (slip sheet) for novel compressor Download PDFInfo
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- CN102094169A CN102094169A CN2009102001883A CN200910200188A CN102094169A CN 102094169 A CN102094169 A CN 102094169A CN 2009102001883 A CN2009102001883 A CN 2009102001883A CN 200910200188 A CN200910200188 A CN 200910200188A CN 102094169 A CN102094169 A CN 102094169A
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- slide plate
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- blade
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Abstract
The invention relates to a surface physical vapor deposition (PVD) coating method for a blade (slip sheet) for a novel compressor. The matrix material consists of chromium-containing iron series alloy and comprises high-speed steel and stainless steel materials used for the conventional slip sheet. The method is characterized in that: nonmetallic protective films are formed on five working faces of the slip sheet by using a PVD method. The method is characterized in that: the surface of the matrix material is subjected to nitriding treatment, and then chromium or titanium or chromium nitride or titanium nitride forms a bottom layer by using a magnetron sputtering or electric arc method. The method is characterized in that: the materials for forming the nonmetallic protective films on the surfaces of the slip sheet by using the PVD method comprise carbon, silicon, tungsten, gas containing silicon, liquid and acetylene. The method has the advantages that: the service life of the slip sheet is prolonged by over 5 times compared with the untreated slip sheet, and the slip sheet can fully meet the service life requirement of the compressor for a new coolant or CO2 refrigerator.
Description
Technical field
The present invention relates to the surperficial PVD method of coating of a kind of new type compressor with blade (slide plate).
Background technology
Present rotary compressor of air conditioner is the compressor of using always, its principle of work as shown in Figure 1,1 cylinder wherein, 2 pistons, 3 slide plates.During compressor operating, piston 2 is made clockwise pure rolling along cylinder 1 endoporus, and slide plate 3 contacts with piston 2 under the spring force effect, cylinder 1 is divided into A, B two portions of sealing.When piston 2 was made clockwise pure rolling, chamber A enlarged-and air-breathing, chamber B reduces-compresses.When piston 2 rotated to bottom dead centre, it is minimum that chamber B reduces to, and it is maximum that pressure reaches, and carries out exhaust.Continue rotation, then chamber A begins compression, and chamber B begins air-breathing, goes round and begins again.Slide plate is in the compressor of air conditioner, most important wear-resisting slide unit, and in its six surfaces, five surfaces all relatively move and slide with other strength members of compressor.The compressor of air conditioner that traditional employing R-22 or F134a make refrigerant, its slide plate adopt rapid steel to make usually, and the surface does not need to carry out special processing, and its wear resistance and work-ing life just can reach design requirements.
But along with environmental protection, energy-conservation and consumption reduction are required to improve constantly, the pressure of low fluorine, floride-free refrigerant is used on the referred agenda.And the popularization of frequency conversion, power-saving technology and use high-power, large capacity conditioner, and the exploitation of heat pump compressor and carbon dioxide compressor, its operating pressure increases substantially (makes the compressor of air conditioner of refrigerant as adopting R410a, its operating pressure ratio adopts the compressor of R22 refrigerant to want high by 40%, reaches 26～28kg/cm
2), to requirements at the higher level are arranged in intensity, wear resistance, resistance to fatigue and work-ing life of slide plate, without surface Hardening Treatment slide plate can't satisfy the high loading compressor to its wear resistance and the requirement in complete machine work-ing life.Therefore demand inventing the problem that novel plating process exists with solution urgently.
Summary of the invention:
The objective of the invention is to solve in the prior art rotatable compressor of air conditioner because of after operating pressure increases substantially, without surface Hardening Treatment slide plate can't satisfy the high loading compressor to its wear resistance and the problem in complete machine work-ing life, the surperficial PVD method of coating of a kind of new type compressor with blade (slide plate) is provided.The present invention designs the surperficial PVD method of coating of new type compressor with blade (slide plate); its body material is made up of the iron-based alloy that contains chromium; comprise rapid steel and stainless material that present slide plate uses, it is characterized in that: the nonmetal protective membrane that on five working faces of slide plate, forms with physical gas-phase deposite method.It is characterized in that: nonmetal protective membrane is that the physical gas-phase deposite method that adopts comprises that the method for arc-over or geseous discharge, sputter is used singly or in combination the diamond-like coating of formation; comprising DLC is quasi-diamond; DLC-Si is siliceous quasi-diamond; DLC-W is the quasi-diamond of tungstenic, and WC/C is a wolfram varbide.It is characterized in that: handle through nitriding on the surface of its body material, forms bottom with the method for magnetron sputtering or electric arc with chromium or titanium or chromium nitride or titanium nitride then.It is characterized in that: the material that the nonmetal protective membrane that forms with physical gas-phase deposite method on the slide plate surface forms nonmetal protective membrane is carbon, silicon, tungsten and siliceous gas, liquid, acetylene.Advantage of the present invention is the work-ing life of having improved slide plate, and does not have treated slide plate relatively to make to have improved more than 5 times, can satisfy the requirement in work-ing life of new cooling media or CO2 compressor used for refrigerator fully.
Description of drawings
Fig. 1 is the operation synoptic diagram that slide plate of the present invention is used for compressor,
Fig. 2 is a slide vane structure synoptic diagram of the present invention,
Friction inefficacy sketch and the hardness gradient figure of Fig. 3-1 for not handling and do not have the coating transition through nitriding,
Friction inefficacy sketch and the hardness gradient figure of Fig. 3-2 for handling and the coating transition is arranged through nitriding,
Fig. 4 is the synoptic diagram of coating, and 3 is slide plate, and 4 is nitride layer, and 5 is the chromium nitride transition layer, and 6 is the diamond-like coating of the method formation of geseous discharge.
Below in conjunction with example the present invention is made detailed operation instruction.
Embodiment:
The new type compressor surperficial PVD method of coating of blade (slide plate); its body material is made up of the iron-based alloy that contains chromium; comprise rapid steel and stainless material that present slide plate uses, it is characterized in that: the nonmetal protective membrane that on five working faces of slide plate, forms with physical gas-phase deposite method.It is characterized in that: nonmetal protective membrane is that the physical gas-phase deposite method that adopts comprises that the method for arc-over or geseous discharge, sputter is used singly or in combination the diamond-like coating of formation; comprising DLC is quasi-diamond; DLC-Si is siliceous quasi-diamond; DLC-W is the quasi-diamond of tungstenic, and WC/C is a wolfram varbide.It is characterized in that: handle through nitriding on the surface of its body material, forms bottom with the method for magnetron sputtering or electric arc with chromium or titanium or chromium nitride or titanium nitride then.It is characterized in that: the material that the nonmetal protective membrane that forms with physical gas-phase deposite method on the slide plate surface forms nonmetal protective membrane is carbon, silicon, tungsten and siliceous hydrocarbon gas, liquid, and hydrocarbon gas is (as CH
4, C
6H
12Deng).
The used method of the present invention is: adopt the method for arc-over or geseous discharge, sputter to form 0.5---5 μ m quasi-diamond PVD coating at five faces (R face, S face, H face) or most advanced and sophisticated (the R face) of slide plate, effectively improve the hardness on slide plate surface, thus the work-ing life of improving slide plate.Aforesaid method can use use also capable of being combined separately.Show as Fig. 2.
In order better to guarantee the bonding force of quasi-diamond PVD coating and matrix metal, prevent coating stripping, must carry out nitriding to matrix metal and handle, form iron and chromium and nitrogen compound in base metal surface.Before forming quasi-diamond PVD coating, form chromium or titanium or chromium nitride or titanium nitride bottom simultaneously, make quasi-diamond PVD coating and matrix metal form the hardness gradient transition, thereby guarantee that quasi-diamond PVD coating combines with the effective of matrix metal, prevents coating stripping.
Show as Fig. 3.Fig. 3-the 1st, not friction inefficacy sketch and the hardness gradient figure that handles and do not have the coating transition through nitriding, as can be seen, because matrix is softer relatively, peeling off of coating and matrix can take place in the effective support that lacks hard coat, and the fracture of coating inside, cause the slide plate life-span to reduce.
Fig. 3-the 2nd, friction inefficacy sketch and hardness gradient figure that the process nitriding is handled and the coating transition is arranged, as can be seen, because the support strength of matrix improves, effective transition of the bottom of coating simultaneously, prevented peeling off of coating and matrix, and the fracture of coating inside, the work-ing life of having improved slide plate.
Coating described above is to be the coating of main component with the quasi-diamond, comprises DLC, DLC-Si, DLC-W, WC/C and be not limited only to contain the coating of crystalline carbon.Test shows that in containing the coating of crystalline carbon secondly preferred DLC-Si is DLC, is DLC-W secondly again, WC/C, but its performance all can satisfy the life requirements of compressor sliding blade.
Embodiment
As Fig. 4, slide plate adopts 6542 rapid steel, handles through nitriding, forms the effective nitride layer of 40 η m, adopt the chromium nitride transition layer of the method for electric arc, form the quasi-diamond DLC coating of 3 μ m again in the method for chromium nitride transition layer external application geseous discharge at most advanced and sophisticated nitride layer surface formation 200 η m.Pass through its work-ing life of slide plate of this processing and do not have treated slide plate comparison to improve 5 times work-ing life, can satisfy the requirement in work-ing life of 410 cold medium compressors fully.
Slide plate adopts 6542 rapid steel, handle through nitriding, form the effective nitride layer of 40 η m, adopt the chromium nitride transition layer of the method for electric arc, form the quasi-diamond DLC-Si coating of 3 μ m again in the method for chromium nitride transition layer external application geseous discharge at nitride layer surface formation 200 η m.Slide plate through this processing has not improved 10-15 doubly with there being treated slide plate comparison its work-ing life work-ing life, can satisfy the requirement in work-ing life of CO2 compressor used for refrigerator fully.
Slide plate adopts the 11Cr17 stainless steel, handle through nitriding, form the effective nitride layer of 40 η m, adopt the titanium nitride transition layer of the method for sputter, form the quasi-diamond DLC-Si coating of 3 μ m again in the method for titanium nitride transition layer external application geseous discharge at nitride layer surface formation 200 η m.Slide plate through this processing has not improved 10-15 doubly with there being treated slide plate comparison its work-ing life work-ing life, can satisfy the requirement in work-ing life of CO2 compressor used for refrigerator fully.
Claims (4)
- New type compressor with blade (slide plate) surperficial PVD method of coating; its body material is made up of the iron-based alloy that contains chromium; comprise rapid steel and stainless material that present slide plate uses, it is characterized in that: the nonmetal protective membrane that on five working faces of slide plate, forms with physical gas-phase deposite method.
- 2. by the surperficial PVD method of coating of the described new type compressor of claim 1 with blade (slide plate); it is characterized in that: nonmetal protective membrane is that the physical gas-phase deposite method that adopts comprises that the method for arc-over or geseous discharge, sputter is used singly or in combination the diamond-like coating of formation; comprising DLC is quasi-diamond; DLC-Si is siliceous quasi-diamond; DLC-W is the quasi-diamond of tungstenic, and WC/C is a wolfram varbide.
- 3. by the surperficial PVD method of coating of the described new type compressor of claim 1 with blade (slide plate), it is characterized in that: handle through nitriding on the surface of its body material, and then form bottom with the method for magnetron sputtering or electric arc with chromium or titanium or chromium nitride or titanium nitride.
- 4. by the surperficial PVD method of coating of the described new type compressor of claim 1 with blade (slide plate); it is characterized in that: the nonmetal protective membrane that forms with physical gas-phase deposite method on the slide plate surface; the material that forms nonmetal protective membrane is carbon, silicon, tungsten and siliceous hydrocarbon gas, liquid, and hydrocarbon gas is (as CH 4, C 6H 12Deng).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102001883A CN102094169A (en) | 2009-12-09 | 2009-12-09 | Surface PVD coating method for blade (slip sheet) for novel compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102001883A CN102094169A (en) | 2009-12-09 | 2009-12-09 | Surface PVD coating method for blade (slip sheet) for novel compressor |
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| CN102094169A true CN102094169A (en) | 2011-06-15 |
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| CN2009102001883A Pending CN102094169A (en) | 2009-12-09 | 2009-12-09 | Surface PVD coating method for blade (slip sheet) for novel compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762648A (en) * | 2017-01-24 | 2017-05-31 | 广东美芝制冷设备有限公司 | Compressor, refrigeration system and automobile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182807A (en) * | 1996-09-06 | 1998-05-27 | 三洋电机株式会社 | Coated hard carbon coating base and mfg. method |
| CN101208461A (en) * | 2005-05-26 | 2008-06-25 | 贝卡尔特股份有限公司 | Piston ring having hard multi-layer coating |
| US20090060408A1 (en) * | 2005-03-02 | 2009-03-05 | Ebara Corporation | Diamond-coated bearing or seal structure and fluid machine comprising the same |
-
2009
- 2009-12-09 CN CN2009102001883A patent/CN102094169A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182807A (en) * | 1996-09-06 | 1998-05-27 | 三洋电机株式会社 | Coated hard carbon coating base and mfg. method |
| US20090060408A1 (en) * | 2005-03-02 | 2009-03-05 | Ebara Corporation | Diamond-coated bearing or seal structure and fluid machine comprising the same |
| CN101208461A (en) * | 2005-05-26 | 2008-06-25 | 贝卡尔特股份有限公司 | Piston ring having hard multi-layer coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762648A (en) * | 2017-01-24 | 2017-05-31 | 广东美芝制冷设备有限公司 | Compressor, refrigeration system and automobile |
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Owner name: ZHEJIANG BAIDA PRECISION INDUSTRY CO., LTD. Free format text: FORMER OWNER: TAIZHOU BAIDA REFRIGERATION CO., LTD. Effective date: 20120322 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Qibin Inventor after: Shi Jianwei Inventor before: Wei Chenggang Inventor before: Zhang Qibin Inventor before: Shi Jianwei |
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Effective date of registration: 20120322 Address after: 318000 No. 908, Lane 28, Middle Road, Taizhou, Zhejiang Applicant after: Zhejiang Baida Precision Co., Ltd. Address before: 318000 No. 908, Lane 28, Middle Road, Taizhou, Zhejiang Applicant before: Taizhou Baida Refrigeration Co., Ltd. |
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Application publication date: 20110615 |