Manufacturing method of slip sheet base material of rotary air conditioner compressor

Abstract

The manufacturing method of the rotary type air conditioner compressor slip sheet base material comprises the following steps: (1) material selection: selecting proper steel; (2) hot rolling: performing hot rolling to form a flat strip-shaped profile; and (3) cold drawing is conducted, specifically, multiple times of cold drawing are conducted according to the shape of the slip sheet, during each cold drawing, the diameter of the cylinder, the width of the joint of the cylinder and the cuboid body and the length and height of the cuboid body are sequentially reduced, and after the last time of cold drawing, the diameter of the cylinder and the length and height of the cuboid body are slightly larger than the specification requirement of the slip sheet.

Description

Technical Field

[0001] The present invention relates to a rotary compressor component. Background Art

[0002] The main body of the rotary air-conditioning compressor is mainly composed of a rotating piston and a stator. The stator is a cylinder body, and the rotor is eccentrically placed in the stator. There is a vane between the rotor and the cylinder body. The cylinder volume on both sides of the vane changes due to the rotation of the rotor, thereby completing the continuous suction and compression of the medium. Vane compressors are widely used because of their simple structure, high efficiency, easy operation and maintenance, quiet operation, and low vibration.

[0003] As the core component of the compressor, the vane needs to be in close contact with the eccentric rolling piston of the compressor. The shape, size, surface finish, hardness and nitriding layer of the compressor vane need to be determined according to the requirements of the application. At present, the vane manufacturing generally cuts out the vane substrate first, and then the vane substrate undergoes various treatments to obtain a qualified vane. There is a mature vane manufacturing method for processing the vane substrate into a qualified vane. From the appropriate material to the formed vane, corresponding cutting, heat treatment, nitriding, fine grinding, etc. are performed to meet the requirements of the shape, precision, hardness and nitriding of the vane, such as the methods disclosed in Chinese patent documents CN1424510A, CN101629573A, CN102251167A, CN102251166A, CN103206379A, etc.

[0004] See also Figure 7 This is an existing rotary air-conditioning compressor vane, the connection end of which with the piston is a cylinder, the vane body is a cuboid, and a depression is formed between the cuboid and the cylinder, so its structure is complex. At present, the above-mentioned vane can only be processed by cutting method, which not only has a complex manufacturing process and low efficiency, but also is difficult to meet the surface accuracy requirements of the cylinder and the vane body. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a method for manufacturing a rotary air-conditioning compressor vane substrate, so that the processing of the vane substrate is convenient and efficient.

[0006] The technical solution adopted by the present invention to solve the above problems is: The manufacturing method of the rotary air-conditioning compressor vane substrate is characterized by comprising the following steps: (1) Material selection: Choose the right steel; (2) Hot rolling: hot rolling into flat strips; (3) Cold drawing: The semi-finished product is cold drawn multiple times according to the shape of the slide. After each cold drawing, the dimensions of the semi-finished product are as follows: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body decrease in sequence. After the last cold drawing, the dimensions of the semi-finished product are as follows: the diameter of the cylinder and the length and height of the rectangular body are slightly larger than the specifications of the slide.

[0007] Preferably, step (3) cold drawing: after the last cold drawing, the diameter of the cylinder and the length of the rectangular body are close to the specification requirements of the slide, and the height is larger than the specification.

[0008] Preferably, the cold drawing comprises four cold drawing steps. (3-1) First cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced; (3-2) Second cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced again; (3-3) The third cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are further reduced; (3-4) The fourth cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are close to the specifications of the slide.

[0009] Preferably, the above step (3) cold drawing: After the last cold drawing, the size of the semi-finished product is as follows: the diameter of the cylinder and the length of the cuboid body are slightly larger than the specification requirements of the slide, and the height is 0.1-0.3 mm more than the specification requirements of the slide. (Reservation for finishing) Preferably, the steel in the above step (1) is stainless steel, alloy steel or other metal suitable for cold drawing.

[0010] Preferably, the step (2) hot rolling: hot rolling the stainless steel into a flat strip, the length L0 of which is L+2.1-2.3 mm, and the height W0 of which is W+2.1-2.3 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is D2+0.3-0.5 mm, the width H1 of the junction between the cylinder and the rectangular body is H2+0.7-0.9 mm, the length L1 of the cylinder and the rectangular body is L2+0.4-0.6 mm, and the height W1 of the rectangular body is W2+0.4-0.6 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is D3+0.8-1.0 mm, the width H2 of the junction between the cylinder and the rectangular body is H3+0.8-1.0 mm, the length L2 of the cylinder and the rectangular body is L3+0.65-0.85 mm, and the height W2 of the rectangular body is W3+0.7-0.9 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is D4+0.4-0.6, the width H3 of the junction between the cylinder and the rectangular body is H4+0.6-0.8 mm, the length L3 of the cylinder and the rectangular body is L4+0.4-0.6 mm, and the height W3 of the rectangular body is W4+0.55-0.75 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is D, the width H4 of the junction between the cylinder and the rectangular body is H mm, the length L4 of the cylinder and the rectangular body is L+0.1--0.3 mm, and the height W4 of the rectangular body is W+0.1--0.3 mm.

[0011] Preferably, the step (2) of hot rolling is to hot roll the stainless steel into a flat strip having a length L0 of L+2 mm and a height W0 of W+2 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is D2+0.4 mm, the width H1 of the junction between the cylinder and the rectangular body is H2+0.8 mm, the length L1 of the cylinder and the rectangular body is L2+0.5 mm, and the height W1 of the rectangular body is W2+0.5 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is D3+0.9 mm, the width H2 of the junction between the cylinder and the rectangular body is H3+0.9 mm, the length L2 of the cylinder and the rectangular body is L3+0.75 mm, and the height W2 of the rectangular body is W3+0.8 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is D4+0.5, the width H3 of the junction between the cylinder and the rectangular body is H4+0.7 mm, the length L3 of the cylinder and the rectangular body is L4+0.5 mm, and the height W3 of the rectangular body is W4+0.65 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is D, the width H4 of the junction between the cylinder and the rectangular body is H mm, the length L4 of the cylinder and the rectangular body is L+0.1--0.3 mm, and the height W4 of the rectangular body is W+0.1--0.3 mm.

[0012] Since there have been many studies on heat treatment and processing of existing sliding vane substrates to obtain qualified sliding vanes, the methods are also disclosed in the background technology and other relevant documents. For example, the following method is adopted: heat treatment method is used to improve the hardness of the sliding vane, and nitriding treatment is used to meet the requirements of the sliding vane surface layer. Therefore, the order and conditions of the treatment can be changed accordingly according to the different materials of the sliding vane substrate. The sliding vane can also be treated according to the method disclosed in Chinese patent document CN103572174A, and the treated sliding vane substrate is subjected to coarse grinding and fine grinding of each surface. Since the focus of the present invention is on the preparation method of the sliding vane substrate, the post-treatment of the sliding vane substrate will not be described in detail here.

[0013] Compared with the prior art, since the method of the present invention can obtain qualified rotary air-conditioning compressor vane substrates at one time, the manufacture of rotary air-conditioning compressor vane substrates is more convenient and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the raw materials for preparing the rotary air-conditioning compressor vane substrate according to an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of a semi-finished product after hot rolling of a raw material for a rotary air-conditioning compressor vane substrate according to an embodiment of the present invention.

[0016] Figure 3 It is a schematic diagram of a semi-finished product after the first cold drawing of a rotary air-conditioning compressor vane substrate in an embodiment of the present invention.

[0017] Figure 4 It is a schematic diagram of a semi-finished product after the second cold drawing of a rotary air-conditioning compressor vane substrate in an embodiment of the present invention.

[0018] Figure 5 It is a schematic diagram of a semi-finished product after the third cold drawing of a rotary air-conditioning compressor vane substrate in an embodiment of the present invention.

[0019] Figure 6 It is a schematic diagram of a semi-finished product after the fourth cold drawing of a rotary air-conditioning compressor vane substrate in an embodiment of the present invention.

[0020] Figure 7 It is a schematic diagram of preparing a rotary air-conditioning compressor vane substrate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 7 As shown, the rotary air conditioning compressor vane substrate includes a cylinder and a cuboid, the diameter D of the cylinder, the height H at the junction of the cylinder and the cuboid body, the length L and the height W of the cuboid body, and the width of the cuboid body depend on the specifications of the vane and can be obtained by cutting the substrate in the width direction. Example 1

[0023] like Figure 1-6 As shown, the manufacturing method of the rotary air-conditioning compressor vane substrate comprises the following steps: (1) Material selection: Select stainless steel, for example, a cylindrical material with a diameter of 18 mm. The length of the cylindrical material can be determined according to the final size of the slide substrate and the processing equipment; (2) Hot rolling: hot rolling the stainless steel into a flat strip with a length L0 of 28 mm and a height W0 of 5.4 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is 4.9 mm, the height H1 of the junction between the cylinder and the rectangular body is 4.1 mm, the length L1 of the cylinder and the rectangular body is 27.75 mm, and the height W1 of the rectangular body is 5.35 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is 4.5 mm, the width H2 of the junction between the cylinder and the rectangular body is 3.5 mm, the length L2 of the cylinder and the rectangular body is 27.25 mm, and the height W2 of the rectangular body is 4.85 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is 3.6 mm, the width H3 of the junction between the cylinder and the rectangular body is 2.6 mm, the length L3 of the cylinder and the rectangular body is 26.5 mm, and the height W3 of the rectangular body is 4.05 mm; (3-4) Fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is 3.1 mm, the width H4 of the junction between the cylinder and the rectangular body is 1.9 mm, the length L4 of the cylinder and the rectangular body is 26 mm, and the height W4 of the rectangular body is 3.4 mm.

[0024] The width of the sliding vane of the rectangular body of the rotary air-conditioning compressor sliding vane substrate is determined by the specification and can be obtained by cutting the substrate in the width direction. Figure 7 . Example 2

[0025] refer to Figure 1-6 As shown, the manufacturing method of the rotary air-conditioning compressor vane substrate comprises the following steps: (1) Material selection: alloy steel, such as cylindrical material with a diameter of 18 mm. The length of the cylindrical material can be determined according to the final size of the slide substrate and the processing equipment; (2) Hot rolling: hot rolling the alloy steel into a flat strip with a length L0 of 28 mm and a height W0 of 5.5 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is 5.0 mm, the width H1 of the junction between the cylinder and the rectangular body is 4.2 mm, the length L1 of the cylinder and the rectangular body is 27.85 mm, and the height W1 of the rectangular body is 5.45 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is 4.6 mm, the width H1 of the junction between the cylinder and the rectangular body is 3.6 mm, the length L1 of the cylinder and the rectangular body is 27.35 mm, and the height W1 of the rectangular body is 4.95 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is 3.7 mm, the width H3 of the junction between the cylinder and the rectangular body is 2.7 mm, the length L3 of the cylinder and the rectangular body is 26.6 mm, and the height W3 of the rectangular body is 4.15 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is 3.1 mm, the width H4 of the junction between the cylinder and the rectangular body is 1.9 mm, the length L4 of the cylinder and the rectangular body is 26 mm, which is close to the specification requirements of the slide, and the height W4 of the rectangular body is 3.4 mm.

[0026] The width of the rectangular body of the rotary air-conditioning compressor vane substrate is determined by the specification and can be obtained by cutting the substrate in the width direction. Figure 7 .

[0027] The key point of the present invention is how to obtain a slider substrate by cold drawing. In the above process, hot rolling and other processes are common processes and will not be described in detail here. The commonly used processing processes in the slider manufacturing process, such as cleaning, will not be described in detail. After the slider substrate is obtained at one time, there are various methods for manufacturing the slider substrate into a finished slider. For example, heat treatment is used to increase the hardness of the slider, nitriding is used to meet the requirements of the slider surface layer, and rough grinding and fine grinding of each surface of the treated slider substrate are performed. These are well known to ordinary technicians in this field and will not be described in detail here.

Claims

1. A method for manufacturing a rotary air-conditioning compressor vane substrate, characterized in that: The following steps are involved: (1) Material selection: Choose the right steel; (2) Hot rolling: hot rolling into flat strips; (3) Cold drawing: The semi-finished product is cold drawn multiple times according to the shape of the slide. After each cold drawing, the dimensions of the semi-finished product are as follows: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body decrease in sequence. After the last cold drawing, the dimensions of the semi-finished product are as follows: the diameter of the cylinder and the length and height of the rectangular body are slightly larger than the specifications of the slide.

2. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1, characterized in that: The cold drawing comprises four cold drawing steps. (3-1) First cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced; (3-2) Second cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced again; (3-3) The third cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are further reduced; (3-4) The fourth cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length of the rectangular body are close to the specifications of the slide.

3. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1 or 2, characterized in that: (3) Cold drawing: After the last cold drawing, the dimensions of the semi-finished product are as follows: the diameter of the cylinder and the length of the rectangular body are slightly larger than the slider specification requirements, and the height is 0.1-0.3 mm more than the slider specification requirements.

4. The method for manufacturing an air-conditioning compressor vane substrate according to claim 3, characterized in that: (1) Material selection: Choose the right steel; (2) Hot rolling: hot rolling the stainless steel into a flat strip with a length L0 of L+2.1-2.3 mm and a height W0 of W+2.1-2.3 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is D2+0.3-0.5 mm, the width H1 of the junction between the cylinder and the rectangular body is H2+0.7-0.9 mm, the length L1 of the cylinder and the rectangular body is L2+0.4-0.6 mm, and the height W1 of the rectangular body is W2+0.4-0.6 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is D3+0.8-1.0 mm, the width H2 of the junction between the cylinder and the rectangular body is H3+0.8-1.0 mm, the length L2 of the cylinder and the rectangular body is L3+0.65-0.85 mm, and the height W2 of the rectangular body is W3+0.7-0.9 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is D4+0.4-0.6, the width H3 of the junction between the cylinder and the rectangular body is H4+0.6-0.8 mm, the length L3 of the cylinder and the rectangular body is L4+0.4-0.6 mm, and the height W3 of the rectangular body is W4+0.55-0.75 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is D, the width H4 of the junction between the cylinder and the rectangular body is H mm, the length L4 of the cylinder and the rectangular body is L+0.1--0.3 mm, and the height W4 of the rectangular body is W+0.1--0.3 mm.

5. The method for manufacturing an air-conditioning compressor vane substrate according to claim 4, characterized in that: (2) Hot rolling: hot rolling the stainless steel into a flat strip with a length L0 of L+2 mm and a height W0 of W+2 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is D2+0.4 mm, the width H1 of the junction between the cylinder and the rectangular body is H2+0.8 mm, the length L1 of the cylinder and the rectangular body is L2+0.5 mm, and the height W1 of the rectangular body is W2+0.5 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is D3+0.9 mm, the width H2 of the junction between the cylinder and the rectangular body is H3+0.9 mm, the length L2 of the cylinder and the rectangular body is L3+0.75 mm, and the height W2 of the rectangular body is W3+0.8 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is D4+0.5, the width H3 of the junction between the cylinder and the rectangular body is H4+0.7 mm, the length L3 of the cylinder and the rectangular body is L4+0.5 mm, and the height W3 of the rectangular body is W4+0.65 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D4 of the cylinder is D, the width H4 of the junction between the cylinder and the rectangular body is H mm, the length L4 of the cylinder and the rectangular body is L+0.1--0.3 mm, and the height W4 of the rectangular body is W+0.1--0.3 mm.

6. The method for manufacturing an air-conditioning compressor vane substrate according to claim 3, characterized in that: (2) Hot rolling: hot rolling the stainless steel into a flat strip with a length L0 of 28 mm and a height W0 of 5.4 mm; (3-1) First cold drawing: the semi-finished product of the flat strip after the first cold drawing is: the diameter of the cylinder is 4.8-5.0 mm, the width of the junction of the cylinder and the rectangular body is 4.0-4.2 mm, the length of the cylinder and the rectangular body is 27.65-27.85 mm, and the height of the rectangular body is 5.25-5.45 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter of the cylinder is 4.4-4.6 mm, the width of the junction of the cylinder and the rectangular body is 3.4-3.6 mm, the length of the cylinder and the rectangular body is 27.15-27.35 mm, and the height of the rectangular body is 4.75-4.95 mm; (3-3) The third cold drawing: The semi-finished product after the second cold drawing is as follows: The semi-finished product after the second cold drawing is as follows: The diameter of the cylinder is 3.5-3.7 mm, the width of the junction of the cylinder and the rectangular body is 2.5-2.7 mm, the length of the cylinder and the rectangular body is 26.4-26.6 mm, and the height of the rectangular body is 3.95-4.15 mm; (3-4) The fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter of the cylinder is 3.0-3.2 mm, the width of the junction between the cylinder and the rectangular body is .8-2.0 mm, the length of the cylinder and the rectangular body is 25.9-26.1 mm, and the height of the rectangular body is 3.3-3.5 mm, which is close to the specification requirements of the slide.

7. The method for manufacturing an air-conditioning compressor vane substrate according to claim 5, characterized in that: (1) Material selection: Select cylindrical materials made of stainless steel. The length of the cylindrical materials can be determined according to the final size of the slider substrate and the processing equipment. (2) Hot rolling: hot rolling the stainless steel into a flat strip with a length L0 of 28 mm and a height W0 of 5.4 mm; (3-1) First cold drawing: The semi-finished product of the flat strip after the first cold drawing is: the diameter D1 of the cylinder is 4.9 mm, the width H1 of the junction between the cylinder and the rectangular body is 4.1 mm, the length L1 of the cylinder and the rectangular body is 27.75 mm, and the height W1 of the rectangular body is 5.35 mm; (3-2) Second cold drawing: The semi-finished product after the first cold drawing is as follows: the diameter D2 of the cylinder is 4.5 mm, the width H2 of the junction between the cylinder and the rectangular body is 3.5 mm, the length L2 of the cylinder and the rectangular body is 27.25 mm, and the height W2 of the rectangular body is 4.85 mm; (3-3) Third cold drawing: The semi-finished product after the second cold drawing is as follows: the diameter D3 of the cylinder is 3.6 mm, the width H3 of the junction between the cylinder and the rectangular body is 2.6 mm, the length L3 of the cylinder and the rectangular body is 26.5 mm, and the height W3 of the rectangular body is 4.05 mm; (3-4) Fourth cold drawing: The semi-finished product after the third cold drawing is as follows: the diameter D of the cylinder is 3.1 mm, the width H of the junction between the cylinder and the rectangular body is 1.9 mm, the length L4 of the cylinder and the rectangular body is 26 mm, and the height W4 of the rectangular body is 3.4 mm.

8. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1, characterized in that: The steel material in step 1) is stainless steel, alloy steel or other metal suitable for cold drawing.

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