CN100516530C - Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer - Google Patents
Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer Download PDFInfo
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- CN100516530C CN100516530C CNB2007100121044A CN200710012104A CN100516530C CN 100516530 C CN100516530 C CN 100516530C CN B2007100121044 A CNB2007100121044 A CN B2007100121044A CN 200710012104 A CN200710012104 A CN 200710012104A CN 100516530 C CN100516530 C CN 100516530C
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- layer
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- plane
- wearing layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0436—Iron
- F05C2201/0439—Cast iron
- F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron
Abstract
This invention relates to refrigeration compressor spare parts with a wear layer and a preparation method of the layer, in which the spare part includes a blade, a rolling sleeve and a crank shaft, the metal body of the spare part is coated with a transition layer and a wear layer on a slide surface, the transition layer is pure Ti or pure Cr and the surface wear layer is TiN or CrN film prepared by a vacuum arc ionic plating method by setting a filter grid made by Z-shape metal table-flaps arranged orderly characterizing that the filter grid is formed by multiple parallel metal hipped-plates in the shape of Z including top plane, a slant and a bottom plane and the largest distance between two adjacent plates is a connecting line between the start point of the top plane and the terminal point of its adjacent lower metal plate to be tangent with the salient point of the two plates.
Description
Technical field
The present invention relates to a kind of metal parts overlay coating technology, especially relate to a kind of preparation method who is provided with the parts of refrigeration compressor and the wearing layer thereof of wearing layer.
Background technique
At present, there are a plurality of moving elements in the air conditioner refrigerating compressor pump, mainly contain blade, bent axle and roll sleeve.Long-term operation under the environment of refrigeration agent, refrigerator oil and higher load and temperature, its wear resistance, corrosion resistance have been subjected to harsh test.Particularly along with floride-free refrigerant, the pressure that is mainly R407C, R410A is used, and also has the generally popularization of energy-saving and frequency-variable technology, and lubricating condition deterioration, running load and the rotating speed of these parts are increased, and its wear resistance and working life are descended.Solved its mode has in the past: adopt the wear resistance that improves body material, select for use spheroidal graphite cast iron, blade to select for use wear resistant tools steel or stainless steel, roll sleeve to adopt the nickel chromium triangle manganese alloy as bent axle; The 2nd, carry out surface treatment, carry out nitrocarburizing and handle as bent axle being carried out phosphatization and being coated with molybdenum, blade.These methods are complex process, cost costliness not only, and effect is not very good, and above-mentioned parts depreciation remains to hinder and improves the complete machine principal element in working life.
Summary of the invention
At the deficiencies in the prior art part, the object of the invention provides a kind of preparation method who is provided with the parts of refrigeration compressor and the wearing layer thereof of wearing layer.This part wear resistance is good, long service life.Simple, the realization easily of this preparation method, quality of coating is stable.
The technical solution adopted for the present invention to solve the technical problems is: the blade in the refrigeration compressor, bent axle and roll sleeve reach the transition layer and the wearing layer that are coated in successively on this metallic matrix by metallic matrix and form, transition layer and wearing layer are coated on the slidingsurface at least, wherein, transition layer is pure titanium or pure chromium layer, average bed thickness＜1.5 μ m; During the pure relatively ti interlayer of surface wear-resistant layer is titanium nitride membrane, is chromium nitride film during pure relatively chromium transition layer, average bed thickness＞0.5 μ m, R
zSurface roughness is＜1.2 μ m, and Vickers hardness is HV＞1300Kgf/mm
2
The preparation method of transition layer and wearing layer adopts filtered cathode vacuum arc; its process step comprises: earlier will put into the equipment vacuum chamber after the workpiece cleaning drying, through vacuumizing, logical argon gas, opening arc, add negative bias, sputter clean, logical nitrogen, plated film, stop taking out workpiece after the stages such as arc, black furnace.Wherein, between cathode arc source target and workpiece, be provided with by " Z " shape metal flap and be arranged in order and the filter grid that constitutes.This filter grid is used for stoping arc ions depositing process ubiquitous " large particle (being drop) " to pass through.The structural feature of this filter grid is to be set up in parallel by a plurality of metal flaps to form, and this plate folding has last plane, inclined-plane and lower plane, like " Z " shape.The condition that determines ultimate range between adjacent two metal flaps is that to go up the last plane break of the lower plane break of the line between the plane starting point and bottom adjacent metal flap lower plane terminal point and last metal flap on the metal flap and bottom adjacent metal flap crossing.
Good effect of the present invention is the wear resistance that has improved the compressor components surface, and makes it have superior stripper-resistance and corrosivity, has improved the working life of complete machine.
Description of drawings
Fig. 1 part surface coating structure of the present invention schematic representation
Fig. 2 filter grid structural representation of the present invention
Fig. 3 scribbles photo behind 1000 hours durability experiments of titanium layer and titanium nitride layer blade
Fig. 4 scribbles photo behind 1000 hours durability experiments of chromium layer and chromium nitride layer blade
1 part base solid among the figure, 2 transition layers, 3 wearing layers, plane on the 4 metal flaps, 5 metal flap inclined-planes, 6 metal flap lower planes
Embodiment
As shown in Figure 1, parts of refrigeration compressor of the present invention is made up of part base solid 1, transition layer 2 and wearing layer 3.
Part is a blade among the embodiment 1, and the part base solid material is W
6Mo
5Cr
4V
2, transition layer is pure titanium, wearing layer is a titanium nitride membrane.
Part is a blade among the embodiment 2, and the part base solid material is W
6Mo
5Cr
4V
2, transition layer is pure chromium, and wearing layer is a chromium nitride film, and the coating position is a part top cambered surface.
The preparation method adopts filtered cathode vacuum arc technology; its step comprises: earlier will put into the equipment vacuum chamber after the workpiece cleaning drying, through vacuumizing, logical argon gas, opening arc, add negative bias, sputter clean, logical nitrogen, plated film, stop taking out workpiece after the stages such as arc, black furnace.The ion plating of carrying out a period of time before feeding nitrogen forms the transition layer of pure titanium or pure chromium, and the coating process behind the feeding nitrogen forms titanium nitride or chromium nitride film, and the thickness of transition layer and the thickness of wearing layer were controlled by the plated film time.Wherein, between cathode arc source target and workpiece, be provided with by " Z " shape metal flap and be arranged in order and the filter grid that constitutes.This filter grid is used for stoping arc ions depositing process ubiquitous " large particle (being drop) " to pass through.As shown in Figure 2, the structural feature of this filter grid is to be set up in parallel by a plurality of metal flaps to form, and this plate folding has last plane 4, inclined-plane 5 and lower plane 6, like " Z " shape.Ultimate range between adjacent two metal flaps is that the break of the line between plane starting point and the bottom adjacent metal flap lower plane terminal point and two plates is tangent on the metal flap.
After embodiment 1 part is handled, the average bed thickness 0.9 μ m of pure titanium layer, the average bed thickness 3.3 μ m of titanium nitride, surface roughness R
z=0.9 μ m, surface hardness HV1310.
After embodiment 2 part is handled, the average bed thickness 1.2 μ m of pure chromium layer, the average bed thickness 2.6 μ m of chromium nitride, surface roughness R
z=1.1 μ m, surface hardness HV1330.
Will embodiment's 1,2 parts carry out 1000 hours durability experiments behind the floride-free refrigerant frequency-changeable compressor of assembling R410A, Fig. 3, Fig. 4 are respectively the photo of experiment back parts depreciation situation, and wearing and tearing are slight and do not have the mill layer and peel off phenomenon.
Claims (2)
1, a kind of parts of refrigeration compressor that is provided with wearing layer, comprise blade, bent axle and roll sleeve, blade, bent axle and roll sleeve reach the transition layer and the wearing layer that are coated in successively on this metallic matrix by metallic matrix and form, transition layer and wearing layer are coated on the slidingsurface at least, wherein, transition layer is pure titanium or pure chromium layer, during the pure relatively ti interlayer of surface wear-resistant layer is titanium nitride membrane, during pure relatively chromium transition layer is chromium nitride film, surface roughness＜the 1.2um that it is characterized in that titanium nitride membrane or chromium nitride film wearing layer, vickers hardness hv＞1300Kgf/mm
2
2; make the method for the described parts of refrigeration compressor wearing layer of claim 1; process step comprises: put into the equipment vacuum chamber after the workpiece cleaning drying; through vacuumizing; logical argon gas; open arc; add negative bias; sputter clean; logical argon gas; plated film; stop arc; take out workpiece after stages such as black furnace; it is characterized in that between cathode arc source target and workpiece, being provided with by " Z " shape metal flap and be arranged in order and the filter grid that constitutes; the structural feature of this filter grid is to be set up in parallel by a plurality of metal flaps to form; this metal flap has last plane; inclined-plane and lower plane; like " Z " shape, the condition that determines ultimate range between adjacent two metal flaps is that the last plane starting point that goes up the metal flap intersects with the lower plane break of line between the adjacent metal flap lower plane terminal point of bottom and last metal flap and the last plane break of bottom adjacent metal flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100121044A CN100516530C (en) | 2007-07-13 | 2007-07-13 | Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100121044A CN100516530C (en) | 2007-07-13 | 2007-07-13 | Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092959A CN101092959A (en) | 2007-12-26 |
| CN100516530C true CN100516530C (en) | 2009-07-22 |
Family
ID=38991356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100121044A Active CN100516530C (en) | 2007-07-13 | 2007-07-13 | Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN100516530C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057205B (en) * | 2013-01-23 | 2014-10-22 | 鲁东大学 | Titanium nitride nanometer multilayer coating impeller and preparation method thereof |
| CN103161733B (en) * | 2013-03-15 | 2015-04-08 | 鲁东大学 | Ti / TiCrN nanometer multilayer coating impeller and preparation method thereof |
| CN103255399B (en) * | 2013-05-24 | 2014-12-24 | 中国科学院金属研究所 | Preparation method of protective coating of dry scroll vacuum pump |
| CN113903515B (en) * | 2021-08-25 | 2023-09-19 | 安徽电缆股份有限公司 | Nuclear-grade cable wrapping shell resistant to ultraviolet irradiation |
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2007
- 2007-07-13 CN CNB2007100121044A patent/CN100516530C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101092959A (en) | 2007-12-26 |
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Address after: 110004 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee after: Northeastern University Patentee after: Shenyang CATIC electromechanical SANYO refrigeration equipment Co., Ltd. Address before: 110004 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: Northeastern University Patentee before: China Resources (Shenyang) Sanyo Compressor Co., Ltd. |