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Nonmagnetic alloy and preparation method thereof

A non-magnetic alloy and press-forming technology, which is applied in the field of powder metallurgy, can solve the problems of high production cost of balance blocks, unfavorable quality of compressors, and high price, so as to facilitate large-scale and automatic production, improve production efficiency, and reduce manufacturing costs. low effect

Active Publication Date: 2014-09-10
湖南屹林材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast copper is used as the balance weight, and the production cost of the balance weight is extremely high due to the high price of copper; high-manganese steel and cast zinc alloy are used as the balance weight, because the density of the balance weight is too low, resulting in its volume is too large, making Excessive noise during high-speed rotation of the motor is not conducive to improving the quality of the compressor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Prepare a kind of non-magnetic alloy that is used to prepare compressor motor balance weight, and its preparation process comprises the following steps:

[0052] (1) Mold preparation:

[0053] According to the design size of the balance block alloy, the near-net shape mold is designed and prepared according to the shrinkage of 7.5%;

[0054] (2) Ingredients and mixing:

[0055] According to the weight percentage of each element of the base material, iron 26%, manganese 55%, copper 15.5%, nickel 2%, chromium 0.5%, tin 1%; powder as raw material powder;

[0056] According to the mass percentage of each component of the forming agent, paraffin wax 40%, SKZ-800 40%, and stearic acid 20%; respectively prepare paraffin wax, SKZ-800, and stearic acid as the raw materials of the forming agent, and mix the raw materials of the forming agent evenly , weigh the forming agent according to the mass of the forming agent accounting for 0.8% of the total mass of the base material po...

Embodiment 2

[0061] Prepare a kind of non-magnetic alloy that is used to prepare compressor motor balance weight, and its preparation process comprises the following steps:

[0062] (1) Mold preparation:

[0063] According to the design size of the balance block alloy, the near net shape mold is designed and prepared according to the shrinkage of 7%;

[0064] (2) Ingredients and mixing:

[0065] According to the weight percentage of each element of the base material, iron 43%, manganese 45%, copper 10%, tin 0.5%, zinc 0.5%, tungsten 1%; Tungsten powder as raw material powder;

[0066] According to the mass percentage of each component of the forming agent, paraffin wax 30%, SKZ-800 50%, stearic acid 10%, talcum powder 5%, polyethylene 5%, paraffin wax, SKZ-800, stearic acid, talc Powder and polyethylene are used as forming agent raw materials, and after each raw material of forming agent is mixed uniformly, take forming agent according to forming agent quality accounts for 0.9% of base ...

Embodiment 3

[0071] Prepare a kind of non-magnetic alloy that is used to prepare compressor motor balance weight, and its preparation process comprises the following steps:

[0072] (1) Mold preparation:

[0073] According to the design size of the balance block alloy, the near net shape mold is designed and prepared according to the shrinkage of 7.8%;

[0074] (2) Ingredients and mixing:

[0075] According to the weight percentage of each element of the base material, iron 61%, manganese 15%, copper 20%, nickel 2%, chromium 0.5%, tin 0.5%, zinc 0.5%, tungsten 0.5%; Chromium master alloy, copper powder, tin powder, zinc powder, tungsten powder as raw material powder;

[0076] According to the mass percentage of each component of the forming agent, 55% of paraffin wax, 38% of SKZ-800, and 7% of stearic acid are prepared respectively to take paraffin wax, SKZ-800, and stearic acid as the raw materials of the forming agent. After mixing the raw materials of the forming agent evenly, Weigh ...

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Abstract

The invention relates to a nonmagnetic alloy and a preparation method thereof, especially relates to a nonmagnetic alloy for making high-density balancing pieces for making compressor motors, and a preparation method of the alloy, and belongs to the technical field of powder metallurgy. The density of the nonmagnetic alloy is 7.7-8.0g / cm<3>; the nonmagnetic alloy comprises, by mass, 26-65% of Fe, 9.8-21.5% of Cu, 14-55% of Mn and 0.1-19% of R; and the R is selected from at least one of W, Ni, Cr, Zn and Sn. The nonmagnetic alloy has the advantages of reasonable component design, simple production process and easy mass production. The finished product prepared in the invention can completely substitute expensive cast copper balancing piece alloys for the compressor motors, so the making cost is substantially reduced; and the nonmagnetic alloy can also substitute cast high-manganese steel and cast zinc alloy balance block alloys, and reduces the original volume of the balancing pieces, so the noise of the motors in high speed rotation work obviously decreases, thereby the quality of the compressors is improved.

Description

technical field [0001] The invention relates to a non-magnetic alloy and a preparation method thereof, in particular to a non-magnetic alloy used for preparing a balance weight of a compressor motor and a preparation method of the alloy; belonging to the technical field of powder metallurgy. technical background [0002] The current non-magnetic balance weight for compressor motors is made of cast high-manganese steel, cast copper, and cast zinc alloy. The process is cumbersome and the production cycle is long. Defects such as poor dimensional stability. Therefore, it is of great significance to choose a new process to manufacture high-quality non-magnetic balance weight alloys for compressor motors. Cast copper is used as the balance weight, and the production cost of the balance weight is extremely high due to the high price of copper; high-manganese steel and cast zinc alloy are used as the balance weight, because the density of the balance weight is too low, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/16C22C22/00C22C30/02C22C33/02C22C1/05
Inventor 彭世超熊翔党胜云刘如铁刘旭
Owner 湖南屹林材料技术有限公司
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