Preparation method of swing block of air compressor

An air-conditioning compressor and adhesive technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of poor dimensional accuracy of parts, shape design restrictions, high hardness of shaking blocks, etc., to solve poor dimensional accuracy and reduce processing costs , the effect of high degree of automation

Active Publication Date: 2019-01-29
湖南英捷高科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods for preparing such rocking blocks, such as machining, precision casting, forging, etc., but these processes have various disadvantages to varying degrees: for example, the high hardness of materials required for traditional machining of rocking blocks makes processing difficult, Subsequent processing is cumbersome, so its preparation cost is high and efficiency is low; precision casting parts have poor dimensional accuracy, rough surface, limited shape design, easy to produce element segregation, shrinkage cavity, trachoma defects and other deficiencies; while forging The performance is superior, but its cost is high, and it is subject to the status of the parts
[0004] Metal injection molding is a processing method that can produce high-performance special-shaped metal parts with complex shapes in large quantities at a relatively low production cost, but there is no report using metal injection molding in the existing technology for preparing rockers

Method used

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  • Preparation method of swing block of air compressor
  • Preparation method of swing block of air compressor
  • Preparation method of swing block of air compressor

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example 1

[0046] A kind of preparation technology of air conditioner compressor rocking block, its process is as follows:

[0047] A. Raw material preparation: the matrix material is 440C stainless steel gas atomized powder with an average particle size of 6um provided by the British Osprey company. The chemical composition of the powder is shown in Table 1. figure 1 It is the SEM topography of 440C stainless steel powder;

[0048] Table 1 Chemical composition of 440C stainless steel powder

[0049]

[0050] B, prepare binding agent: by mass percentage, get paraffin wax (PW) 62%, polyethylene (PE) 17%, carnauba wax (CW) 18%, stearic acid (SA) 3%, at 120 ℃ of temperature Mix in a mixer for 4h to prepare the binder;

[0051] C. Preparation of feeding material: mixing and granulating the binder and base material 440C stainless steel powder according to the volume ratio of 43%:57% to make feeding material. The mixing temperature is 120°C, and the speed of the mixer is 85r / min , the mi...

example 2

[0057] A kind of preparation technology of air conditioner compressor rocking block, its process is as follows:

[0058] A. Raw material preparation: the matrix material is 440C stainless steel gas atomized powder with an average particle size of 6um provided by the British Osprey company. The chemical composition of the powder is shown in Table 1. figure 1 It is the SEM topography of 440C stainless steel powder;

[0059] B, preparation binder: by mass percentage, get paraffin wax (PW) 65%, polyethylene (PE) 19%, carnauba wax (CW) 15%, stearic acid (SA) 1%, at 130 ℃ temperature Mix in a mixer for 3 hours to prepare the binder;

[0060] C. Preparation of feed: Mix the binder and base material 440C stainless steel powder according to the volume ratio of 45%:55%, and granulate to make feed. The mixing temperature is 130°C, and the speed of the mixer is 90r / min , the mixing time is 3h;

[0061] D. Injection molding: use the injection molding machine to inject the feed into the ...

example 3

[0066] A kind of preparation technology of air conditioner compressor rocking block, its process is as follows:

[0067] A. Raw material preparation: the matrix material is 440C stainless steel gas atomized powder with an average particle size of 6um provided by the British Osprey company. The chemical composition of the powder is shown in Table 1. figure 1 It is the SEM topography of 440C stainless steel powder;

[0068] B, prepare binding agent: by mass percentage, get paraffin wax (PW) 70%, polyethylene (PE) 20%, carnauba wax (CW) 9%, stearic acid (SA) 1%, at 140 ℃ of temperature Mix in a mixer for 2 hours to prepare the binder;

[0069] C. Preparation of feeding material: mixing and granulating the binder and base material 440C stainless steel powder according to the volume ratio of 48%:52% to make feeding material. The mixing temperature is 140°C, and the speed of the mixer is 100r / min , the mixing time is 2h;

[0070] D. Injection molding: use an injection molding mac...

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Abstract

The invention discloses a preparation method of a swing block of an air compressor. The preparation method comprises the following steps: mixing a 440C stainless steel powder matrix material with a binder to prepare a uniform feed; injecting the feed into a cavity by means of an injection molding technique to obtain a product blank; and then carrying out solvent degreasing and thermal debinding processes on the binder in the blank and carrying out sintering densification, and finally carrying out heat treatment intensification to obtain the swing block product of an the compressor. Compared with the prior art, the swing block of the air compressor produced by the metal injection molding technique has the characteristics of being high in processing efficiency, high in dimensional precision,low in production cost and easy to achieve production automation, a product which is excellent in performance and stable in quality can be prepared, the tensile strength exceeds 850 MPa which is 60%better than that of a similar product and achieves the international advanced level, and the demands of client can be met well.

Description

technical field [0001] The invention relates to a preparation method of a rocking block, in particular to a preparation method of an air conditioner compressor rocking block. Background technique [0002] With the rapid development of the economy, the problem of energy shortage has become increasingly prominent, and the development of a green economy that is energy-saving and environmentally friendly is the focus of economic development in various countries. The compressor is a key component of the air conditioner. It compresses and drives the refrigerant. It continuously absorbs heat from one end of the low-pressure area into the refrigerant, and then sends it to the high-pressure area to dissipate it into the air to achieve the effect of adjusting the temperature. The development of miniaturized, low energy consumption, and green compressors is the key research and development direction of related companies. At present, the purpose of improving work efficiency and reducing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/22B22F3/10B22F3/24B22F1/00B22F5/00
CPCB22F3/1007B22F3/1017B22F3/225B22F3/24B22F5/00B22F2003/248B22F2998/10B22F2998/00B22F1/103B22F1/10B22F2201/20
Inventor 李益民余勇何浩胡幼华王霄
Owner 湖南英捷高科技有限责任公司
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