阅读说明：本技术 一种旋转式压缩机滑片的制造方法及旋转式压缩机滑片 (Manufacturing method of rotary compressor sliding vane and rotary compressor sliding vane ) 是由 李海成 龙春仙 于 2019-09-27 设计创作，主要内容包括：本申请提供了一种旋转式压缩机滑片的制造方法及旋转式压缩机滑片,该制造方法包括：采用氮化钢基材制成滑片半成品；对所述滑片半成品依次进行调质热处理和氮化处理,以在所述滑片半成品的表面形成白亮层,其中,所述白亮层的厚度为0.004mm-0.03mm,表面硬度为1100HV-1350HV,与所述白亮层接触的扩散层厚度为0.15mm-0.45mm；对氮化处理后的与所述滑片半成品的先端相邻的侧面进行精磨,维持所述滑片半成品的先端不变,使所述滑片半成品的所述侧面上的所述白亮层的厚度为0mm-0.03mm,表面粗糙度≤1.6μm；而所述滑片半成品的先端上的所述白亮层的厚度为0.004mm-0.03mm,表面粗糙度≤2.5μm,以制成所述滑片。通过上述方式,本申请能够提供一种成本较低且性能符合要求的氮化钢基材的滑片。(The application provides a manufacturing method of a rotary compressor slip sheet and the rotary compressor slip sheet, wherein the manufacturing method comprises the following steps: manufacturing a semi-finished product of the sliding sheet by adopting a steel nitride substrate; carrying out quenching and tempering heat treatment and nitriding treatment on the semi-finished product of the slip sheet in sequence to form a white and bright layer on the surface of the semi-finished product of the slip sheet, wherein the thickness of the white and bright layer is 0.004-0.03 mm, the surface hardness is 1100HV-1350HV, and the thickness of a diffusion layer in contact with the white and bright layer is 0.15mm-0.45 mm; finely grinding the side surface adjacent to the front end of the semi-finished product of the sliding sheet after the nitriding treatment, and maintaining the front end of the semi-finished product of the sliding sheet unchanged to ensure that the thickness of the white and bright layer on the side surface of the semi-finished product of the sliding sheet is 0-0.03 mm and the surface roughness is less than or equal to 1.6 mu m; and the thickness of the white and bright layer on the front end of the semi-finished product of the slip sheet is 0.004mm-0.03mm, and the surface roughness is less than or equal to 2.5 mu m, so as to prepare the slip sheet. By the mode, the sliding sheet of the steel nitride base material is low in cost and meets the performance requirement.)

1. A method for manufacturing a sliding vane of a rotary compressor, comprising:

manufacturing a semi-finished product of the sliding sheet by adopting a steel nitride substrate;

carrying out quenching and tempering heat treatment and nitriding treatment on the semi-finished product of the slip sheet in sequence to form a white and bright layer on the surface of the semi-finished product of the slip sheet, wherein the thickness of the white and bright layer is 0.004-0.03 mm, the surface hardness is 1100HV-1350HV, and the thickness of a diffusion layer in contact with the white and bright layer is 0.15mm-0.45 mm;

finely grinding the side surface adjacent to the front end of the semi-finished product of the sliding sheet after the nitriding treatment, and maintaining the front end of the semi-finished product of the sliding sheet unchanged to ensure that the thickness of the white and bright layer on the side surface of the semi-finished product of the sliding sheet is 0-0.03 mm and the surface roughness is less than or equal to 1.6 mu m; and the thickness of the white and bright layer on the front end of the semi-finished product of the slip sheet is 0.004mm-0.03mm, and the surface roughness is less than or equal to 2.5 mu m, so as to prepare the slip sheet.

2. The manufacturing method according to claim 1, wherein the step of quenching and tempering heat treatment of the semi-finished product of the sliding sheet comprises:

quenching the semi-finished product of the sliding sheet;

and tempering the semi-finished product of the sliding vane after quenching treatment at least once.

3. The manufacturing method according to claim 2, wherein before the quenching treatment of the semi-finished slider product, the manufacturing method further comprises:

and carrying out preheating treatment on the semi-finished product of the sliding sheet.

4. The manufacturing method according to claim 3,

the preheating temperature of the preheating treatment is 550-850 ℃; and/or the heat preservation temperature of the quenching treatment is 830-1100 ℃; and/or the tempering temperature is 450-650 ℃.

5. The manufacturing method according to claim 1, wherein after the quenching and tempering heat treatment is performed on the semi-finished product of the sliding piece and before the nitriding treatment is performed, the manufacturing method further comprises:

performing stress relief annealing treatment on the semi-finished product of the slip sheet after the quenching and tempering heat treatment; wherein the annealing temperature of the stress relief annealing treatment is 400-650 ℃, and the treatment time is 2-5 hours.

6. The manufacturing method according to claim 1, wherein said manufacturing of a semi-finished slider from a steel nitride substrate comprises:

normalizing or annealing the nitrided steel substrate; wherein the normalizing treatment temperature is 930-970 ℃, and the treatment time is 2-5 hours; the annealing temperature is 680-830 ℃, and the treatment time is 2-4.5 hours.

7. The manufacturing method according to claim 1,

the nitriding treatment adopts a gas nitriding process, the treatment temperature is 450-650 ℃, and the treatment time is 5-7 hours.

8. The manufacturing method according to claim 1,

the hardness of the end surface of the semi-finished product of the sliding vane or the end of the sliding vane after the nitriding treatment, which is 30 mu m away from the surface, is more than or equal to 900HV, the hardness of the end surface of the semi-finished product of the sliding vane, which is 60 mu m away from the surface, is more than or equal to 500HV, and the core hardness is more than or equal to 360 HV.

9. The manufacturing method according to claim 1,

the model of the nitrided steel is 38 CrMoAl.

10. A rotary compressor vane, characterized in that it is manufactured by the manufacturing method according to any one of claims 1 to 9.

Technical Field

The present disclosure relates to compressor technologies, and in particular, to a method for manufacturing a sliding vane of a rotary compressor and a sliding vane of a rotary compressor.

Background

The sliding vane is used as an important part of the rotary compressor, in the working process of the rotary compressor, the sliding vane is tightly attached to an eccentric piston of the rotary compressor, and the part of the sliding vane, which is contacted with the piston, is easy to wear, so that the sliding vane is required to have certain wear resistance.

At present, high-carbon stainless steel and high-grade alloy tool steel are generally adopted as slide sheet base materials and are subjected to corresponding heat treatment so as to enable the performance of the slide sheet base materials to meet requirements. Because of the high content of the alloying elements contained in the above base material, the manufacturing process is complicated and the cost is high, and for example, the current high carbon stainless steel of SUS440C type is about 2 ten thousand per ton and the high grade alloy tool steel of W6Mo5Cr4V2 type is about 6 ten thousand per ton. Therefore, there is a need for a rotary compressor vane that is relatively low in cost and meets performance requirements.

Disclosure of Invention

The technical problem that the application mainly solves is to provide a manufacturing method of a rotary compressor slip sheet and the rotary compressor slip sheet, and the slip sheet of the steel nitride base material with lower cost and performance meeting the requirement can be provided.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a method for manufacturing a sliding vane of a rotary compressor, comprising: manufacturing a semi-finished product of the sliding sheet by adopting a steel nitride substrate; carrying out quenching and tempering heat treatment and nitriding treatment on the semi-finished product of the slip sheet in sequence to form a white and bright layer on the surface of the semi-finished product of the slip sheet, wherein the thickness of the white and bright layer is 0.004-0.03 mm, the surface hardness is 1100HV-1350HV, and the thickness of a diffusion layer in contact with the white and bright layer is 0.15mm-0.45 mm; finely grinding the side surface adjacent to the front end of the semi-finished product of the sliding sheet after the nitriding treatment, and maintaining the front end of the semi-finished product of the sliding sheet unchanged to ensure that the thickness of the white and bright layer on the side surface of the semi-finished product of the sliding sheet is 0-0.03 mm and the surface roughness is less than or equal to 1.6 mu m; and the thickness of the white and bright layer on the front end of the semi-finished product of the slip sheet is 0.004mm-0.03mm, and the surface roughness is less than or equal to 2.5 mu m, so as to prepare the slip sheet.

Wherein, the step of quenching and tempering heat treatment of the semi-finished product of the slip sheet comprises the following steps: quenching the semi-finished product of the sliding sheet; and tempering the semi-finished product of the sliding vane after quenching treatment at least once.

Before the quenching treatment is carried out on the semi-finished product of the sliding sheet, the manufacturing method further comprises the following steps: and carrying out preheating treatment on the semi-finished product of the sliding sheet.

Wherein the preheating temperature of the preheating treatment is 550-850 ℃; and/or the heat preservation temperature of the quenching treatment is 830-1100 ℃; and/or the tempering temperature is 450-650 ℃.

After the quenching and tempering heat treatment is carried out on the semi-finished product of the sliding vane and before the nitriding treatment is carried out on the semi-finished product of the sliding vane, the manufacturing method further comprises the following steps: performing stress relief annealing treatment on the semi-finished product of the slip sheet after the quenching and tempering heat treatment; wherein the annealing temperature of the stress relief annealing treatment is 400-650 ℃, and the treatment time is 2-5 hours.

Wherein, adopt nitride steel substrate to make gleitbretter semi-manufactured goods, include: normalizing or annealing the nitrided steel substrate; wherein the normalizing treatment temperature is 930-970 ℃, and the treatment time is 2-5 hours; the annealing temperature is 680-830 ℃, and the treatment time is 2-4.5 hours.

Wherein the nitriding treatment adopts a gas nitriding process, the treatment temperature is 450-650 ℃, and the treatment time is 5-7 hours.

Wherein, the hardness of the end surface of the semi-finished product of the sliding vane or the end of the sliding vane after the nitriding treatment, which is 30 mu m away from the surface, is not less than 900HV, the hardness of the end surface of the semi-finished product of the sliding vane, which is 60 mu m away from the surface, is not less than 500HV, and the core hardness is not less than 360 HV.

Wherein the type of the nitrided steel is 38 CrMoAl.

In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a rotary compressor vane made by the method of any one of the above.

The beneficial effect of this application is: when the rotary compressor sliding vane is manufactured, a steel nitride base material is subjected to quenching and tempering heat treatment, nitriding treatment and fine grinding in sequence, so that a white bright layer is formed on the surface of the front end of the sliding vane, the thickness of the white bright layer is 0.004-0.03 mm, the surface roughness is less than or equal to 2.5 mu m, the surface hardness is 1100HV-1350HV, the thickness of a diffusion layer in contact with the white bright layer is 0.15-0.45 mm, the thickness of the white bright layer on the side surface adjacent to the front end of the sliding vane is 0-0.03 mm, and the surface roughness is less than or equal to 1.6 mu m. The front end of the slip sheet provided by the mode has higher surface hardness and good wear resistance; and the surface roughness of the side surface of the front end periphery of the slip sheet is small, so that the wear-in between the side surface of the slip sheet and the surrounding structure is good, and the friction loss is low. The sliding vane of the steel nitride base material can be suitable for the rotary compressor, and the cost of the steel nitride base material is low, so that the cost for manufacturing the sliding vane of the rotary compressor can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic structural diagram of an embodiment of a compression mechanism of a rotary compressor according to the present application;

FIG. 2 is a schematic view of a vane of the rotary compressor according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart illustrating a method for manufacturing a compressor vane according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For ease of understanding, the rotary compressor vane and the compression mechanism of the rotary compressor will be described first. Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of a compression mechanism of a rotary compressor of the present application, and fig. 2 is a schematic structural diagram of an embodiment of a vane of a rotary compressor of the present application.

The rotary compressor, which may be generally used in an air conditioner, a refrigerator, or the like, includes a housing, and a motor part and a compression mechanism 10 disposed in the housing, wherein the motor part is used to output a rotational power, and the compression mechanism 10 and the motor part perform a motion transmission via a crankshaft. The compression mechanism 10 includes a piston 100 that eccentrically rotates by being driven by a crankshaft, and a cylinder 102 that engages with the piston 100, and a compression chamber 104 is formed between an inner peripheral surface of the cylinder 102 and an outer peripheral surface of the piston 100. A sliding piece mounting groove (not marked) is formed in the cylinder 102, a sliding piece 106 is movably arranged in the sliding piece mounting groove, and a front end a of the sliding piece 106 extends out of the sliding piece mounting groove and abuts against the outer peripheral surface of the piston 100 so as to divide the compression cavity 104 into an air suction cavity and an air exhaust cavity. The end of the sliding vane 106, which abuts against the outer peripheral surface of the piston 100, may be an arc end surface (as shown in fig. 1 and fig. 2), and the end of the sliding vane 106, which abuts against the end a of the piston 100, is required to have high wear resistance. The side surfaces (e.g., four side surfaces in fig. 2) around the leading end a of the vane 106 are located in the vane mounting groove of the cylinder, and thus it is required that the wear between the side surfaces of the vane 106 and the cylinder is small.

Referring to FIG. 3, FIG. 3 is a schematic flow chart of an embodiment of a method for manufacturing a sliding vane of a compressor according to the present application, the method comprising:

s101: the semi-finished product of the sliding sheet is made of a steel nitride substrate.

Specifically, the type of the nitrided steel can be 38CrMoAl, and the 38CrMoAl nitrided steel has high surface hardness, wear resistance and fatigue strength and good heat resistance and corrosion resistance. The cost of 38CrMoAl nitride steel on the market is about 5000 yuan/ton at present, which is far lower than the cost of the sliding sheet made of the traditional SUS440C type high-carbon stainless steel and W6Mo5Cr4V2 type high-grade alloy tool steel.

The 38CrMoAl mainly comprises the following chemical components, carbon C: 0.35% -0.42% (e.g., 0.37%, 0.40%, etc.), silicon Si: 0.20% -0.45% (e.g., 0.30%, 0.40, etc.), manganese Mn: 0.30% -0.60% (e.g., 0.40%, 0.50%, etc.), sulfur S: 0.035% (e.g., 0.03%, 0.02%, etc.), phosphorus P0.035% (e.g., 0.03%, 0.02%, etc.), chromium Cr: 1.35% -1.65% (e.g., 1.45%, 1.55%, etc.), aluminum Al: 0.70% -1.10% (e.g., 0.9%, 1.0%, etc.), nickel Ni: ≦ 0.30% (e.g., 0.2%, 0.1%, etc.), copper Cu: 0.30% (e.g., 0.2%, 0.1%, etc.), molybdenum Mo: 0.15% -0.25% (e.g., 0.2%, etc.).

Wherein, the functions of each element in the chemical components are as follows: carbon is an essential element for securing the strength of the nitrided steel. The silicon element can increase the hardenability of the nitrided steel, and can reduce the diffusion speed of carbon in ferrite, so that carbides precipitated during tempering are not easy to gather, and the tempering stability of the nitrided steel after quenching is improved. The manganese element can obviously reduce the temperature for forming austenite and the decomposition speed of the austenite of the nitrided steel, and improve the hardenability of the steel. Chromium is an excellent nitride-promoting element and is the main alloying element of nitriding steel. The aluminum element has high affinity with nitrogen and oxygen, and can be used for deoxidizing and refining crystal grains and promoting the nitrided steel to form a corrosion-resistant layer. The nickel element and the copper element can refine ferrite grains and improve the plasticity and the toughness of the nitriding steel. Molybdenum is present in a solid solution phase and a carbide phase in the nitrided steel, and can improve hardenability of the nitrided steel and prevent temper embrittlement.

In this embodiment, the step S101 specifically includes: and sequentially cutting and mechanically roughing the steel nitride substrate to form a semi-finished product of the sliding sheet.

Further, the step S101 further includes: normalizing or annealing the steel nitride base material; wherein the normalizing treatment temperature is 930-970 ℃ (e.g., 940 ℃, 950 ℃, 960 ℃, etc.), and the treatment time is 2-5 hours (e.g., 3 hours, 4 hours, etc.); the annealing temperature is 680 ℃ to 830 ℃ (e.g., 700 ℃, 750 ℃, 800 ℃, etc.), and the treatment time is 2 hours to 4.5 hours (e.g., 3 hours, 4 hours, etc.).

The normalizing treatment is a heat treatment process for improving the toughness of the nitrided steel, and the specific process can be as follows: after the nitrided steel is heated to the temperature of Ac3 (namely all ferrite is converted into austenite), the nitrided steel is kept warm for a period of time, and then is discharged from a furnace for air cooling, and the normalizing treatment can refine the crystal grains of the nitrided steel, improve the strength, obviously improve the toughness and reduce the cracking probability of the nitrided steel. The number of normalizing treatments may be one or more.

The annealing process is a heat treatment process in which the nitrided steel is exposed to a high temperature for a period of time and then slowly cooled, and is mainly aimed at releasing stress and increasing ductility and toughness of the nitrided steel. The number of the annealing treatments may be one or more.

S102: and (3) sequentially carrying out quenching and tempering heat treatment and nitriding treatment on the semi-finished product of the sliding vane so as to form a white bright layer on the surface of the semi-finished product of the sliding vane, wherein the thickness of the white bright layer is 0.004-0.03 mm (for example, 0.01mm, 0.02mm and the like), the surface hardness is 1100HV-1350HV (for example, 1200HV, 1300HV and the like), and the thickness of a diffusion layer in contact with the white bright layer is 0.15mm-0.45mm (for example, 0.20mm, 0.30mm, 0.40mm and the like).

Specifically, in an embodiment, the step of performing a thermal refining heat treatment on the vane semi-finished product in the step S102 includes: A. quenching the semi-finished product of the sliding blade; B. and tempering the semi-finished product of the slide sheet after quenching treatment at least once.

The quenching treatment process comprises the following steps: firstly, heating a semi-finished product of the sliding sheet to a temperature above a eutectoid temperature, and preserving heat for a period of time, wherein a steel nitride substrate is austenitized; and then rapidly cooling to a bainite transformation region in quenching liquid for isothermal treatment, wherein an austenitizing part is transformed into bainite, and the strength and toughness of the bainite are high. In the present embodiment, the heat-retention temperature of the quenching treatment is 830 to 1100 ℃ (i.e., the temperature at which the quenching treatment is heated to a temperature higher than the eutectoid temperature in the above process), for example, 900 ℃, 1000 ℃, and the quenching liquid is oil or water. The strength, hardness and wear resistance of the nitrided steel are improved after the quenching process.

Because internal stress can appear in the gleitbretter semi-manufactured goods after the quenching treatment cooling, plasticity and toughness reduce to some extent, in order to further improve the comprehensive properties of gleitbretter semi-manufactured goods, carry out tempering to the gleitbretter semi-manufactured goods after above-mentioned quenching treatment, the tempering process includes: and (4) heating the quenched semi-finished product of the sliding sheet to a proper temperature, preserving heat for a plurality of times, and then slowly or rapidly cooling. In the present embodiment, the tempering temperature of the tempering treatment is 450 ℃ to 650 ℃, for example, 500 ℃ to 550 ℃. Furthermore, the tempering may be performed once or more, for example, the semi-finished vane may be tempered three times, and the temperatures of the three tempering times may be the same or different.

In an application scenario, before the step a performs the quenching process on the semi-finished product of the slider, the manufacturing method provided by the present application further includes: the semi-finished product of the sliding sheet is preheated at 550-850 deg.C, such as 600 deg.C, 700 deg.C, 750 deg.C, 800 deg.C, etc. The preheating treatment can reduce the thermal stress during the subsequent quenching treatment and reduce the probability of deformation of the semi-finished product of the sliding sheet. In this embodiment, the preheating step may be one or more warming preheats.

In another embodiment, the nitriding in step S102 is a chemical heat treatment process for making nitrogen atoms penetrate into the surface layer of the workpiece in a certain medium at a certain temperature, and the wear resistance, fatigue resistance, corrosion resistance and high temperature resistance of the semi-finished product of the sliding vane after nitriding are improved, and the aluminum element, the chromium element and the molybdenum element in the nitrided steel are beneficial to nitriding. In this embodiment, the step S102 of performing nitridation on the semi-finished product of the slider specifically includes: and (3) treating the semi-finished product of the slide sheet by adopting a gas nitriding process, wherein the treatment temperature is 450-650 ℃ (for example, 480 ℃, 500 ℃, 520 ℃, 600 ℃ and the like), and the treatment time is 5-7 hours (for example, 6 hours and the like). In an application scenario, the gas nitriding process comprises: placing the semi-finished product of the sliding vane in a nitriding furnace at 450-650 ℃, wherein the temperature in the nitriding furnace is the treatment temperature value; then ammonia gas is fed into the nitriding furnace and treated for 5 to 7 hours, nitrogen elements decomposed by the ammonia gas are diffused into the surface of the nitrided steel to form a wear-resistant and corrosion-resistant white bright layer on the surface, the thickness of the white bright layer is 0.004 to 0.03mm (e.g., 0.01mm, 0.02mm, etc.), the surface hardness is 1100 to 1350HV (e.g., 1200HV, 1300HV, etc.), and the thickness of the diffusion layer in direct contact with the white bright layer is 0.15 to 0.45mm (e.g., 0.25mm, 0.35mm, etc.). The formed white and bright layer has the characteristics of high hardness and wear resistance.

In the tip of the nitrided vane blank, the hardness of the end face 30 μm from the surface is 900HV or more (e.g., 950HV, 1000HV, etc.), the hardness of the end face 60 μm from the surface is 500HV or more (e.g., 600HV, 700HV, 800HV, etc.), and the core hardness is 360HV or more (e.g., 400HV, 450HV, etc.), where core hardness generally refers to the hardness within the diffusion layer. The performance of the semi-finished product of the sliding vane after the nitridation treatment meets the requirements of the sliding vane of the compressor.

In another embodiment, after the quenching and tempering heat treatment is performed on the vane semi-finished product in the step S102, before the nitriding treatment is performed, the manufacturing method provided by the present application further includes: carrying out stress relief annealing treatment on the semi-finished product of the slide sheet after the conditioning heat treatment; wherein the annealing temperature of the stress-relief annealing treatment is 400 ℃ to 650 ℃ (e.g., 450 ℃, 550 ℃, etc.), and the treatment time is 2 hours to 5 hours (e.g., 3 hours, 4 hours, etc.). The stress relief annealing treatment can eliminate the internal stress of the nitrided steel.

S103: finely grinding the side surface adjacent to the front end of the semi-finished product of the sliding vane after the nitriding treatment, and maintaining the front end of the semi-finished product of the sliding vane to be unchanged, so that the thickness of a white and bright layer on the side surface of the semi-finished product of the sliding vane is 0mm-0.03mm (for example, 0.01mm, 0.02mm and the like), and the surface roughness is less than or equal to 1.6 mu m (for example, 1.2um, 1.0um and the like); and the thickness of the white and bright layer on the tip of the semi-finished product of the slide sheet is 0.004mm-0.03mm (e.g. 0.01mm, 0.02mm), and the surface roughness is less than or equal to 2.5 μm (e.g. 2.0um, 2.2um, etc.), so as to prepare the slide sheet.

Specifically, the tip of the slip sheet is a part which always abuts against the piston, so that abrasion is easily caused, and the mode of maintaining the tip of the semi-finished slip sheet unchanged is beneficial to improving the abrasion resistance of the tip of the slip sheet, so that the service life of the slip sheet is prolonged. Further, in the present embodiment, in the tip end of the vane, the hardness of the end face 30 μm from the surface is 900HV or more (e.g., 950HV, 1000HV, etc.), the hardness of the end face 60 μm from the surface is 500HV or more (e.g., 600HV, 700HV, 800HV, etc.), and the core hardness is 360HV or more (e.g., 400HV, 450HV, etc.). The performance of the front end of the sliding vane after the nitriding treatment meets the requirement of the sliding vane of the compressor.

The above-mentioned manner of performing fine grinding treatment on the side surface of the tip of the semi-finished product of the slip sheet may be: precision grinding is carried out to gleitbretter semi-manufactured goods thickness direction and direction of height, and the roughness of the side of gleitbretter semi-manufactured goods's tip can effectively be reduced to this mode for when the gleitbretter slides in the gleitbretter mounting groove of cylinder, better with the running-in of cylinder on every side, frictional loss is lower.

The following provides a specific application scenario for further explanation of the manufacturing method of the compressor sliding vane provided in the present application. The manufacturing method comprises the following steps: a. cutting the 38CrMoAl plate, and mechanically roughly processing the plate into a semi-finished product; b. quenching and tempering heat treatment before nitriding treatment: quenching the 38CrMoAl semi-finished slide at 930 ℃, tempering for the first time at 560 ℃, tempering for the second time at 580 ℃, and tempering for the third time at 550 ℃, wherein the hardness of the 38CrMoAl base material is 38 HRc; c. performing stress relief annealing treatment at 550 ℃ for 2.5h, and then performing primary finish machining treatment on the semi-finished product of the sliding sheet; d. performing gas nitriding treatment at the temperature of 450-550 ℃ for 5-7 h; e. and (3) finely grinding the side surfaces of the semi-finished product of the sliding vane after the nitriding treatment in the thickness direction and the height direction, keeping the front end of the semi-finished product of the sliding vane unchanged, wherein the hardness of the front end of the sliding vane after the nitriding treatment is 1151HV at the position with the section 30 mu m away from the surface, 1040HV at the position with the section 60 mu m away from the surface, the core hardness is 403HV, and the thickness of a white layer is 0.018 mm.

Referring again to FIG. 2, the rotary compressor vane provided in FIG. 2 may be fabricated using the fabrication methods of any of the embodiments described above.

The material of the rotary compressor vane 106 is nitrided steel, for example, 38CrMoAl nitrided steel. The rotary compressor vane 106 includes a tip A having a thickness of 0.004mm to 0.03mm (e.g., 0.01mm, 0.02mm), a surface roughness of 2.5 μm or less (e.g., 2.0um, 2.2um, etc.), a surface hardness of 1100HV to 1350HV (e.g., 1200HV, 1300HV, etc.), and a diffusion layer in contact with the tip A having a thickness of 0.15mm to 0.45mm (e.g., 0.20mm, 0.30mm, 0.40mm, etc.), and a side surface adjacent to the tip A. The thickness of the white layer on the side surface adjacent to the tip A is 0mm to 0.03mm (e.g., 0.01mm, 0.02mm, etc.), and the surface roughness is not more than 1.6 μm (e.g., 1.2um, 1.0um, etc.).

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.