Preparation method of high-temperature alloy material for locomotive motor retaining ring

A motor guard ring and superalloy technology, which is applied in the field of superalloy materials, can solve the problems of complicated preparation process of guard ring materials, many processing equipment and high preparation cost, and achieves the advantages of improving market competitiveness, reducing processing equipment and reducing preparation cost. Effect

Inactive Publication Date: 2021-03-30
江苏新核合金科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and provide a method for preparing a high-temperature alloy material for locomotive motor retaining

Method used

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  • Preparation method of high-temperature alloy material for locomotive motor retaining ring

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preparation example Construction

[0020] A method for preparing a superalloy material for a locomotive motor retaining ring, comprising the following steps:

[0021] S1 Raw material preparation: The raw and auxiliary materials are guaranteed to be free from impurities, oil, and moisture, and are carefully baked according to the process requirements before use. The chemical composition of the raw materials is accurate, without any foreign impurities, and meets the smelting requirements.

[0022] S2 vacuum smelting: feeding sequence: bottom slag-pure iron-Ni-VFeCr-return material, when the full melting is 80%, under the condition that the slag system protects the molten steel from being exposed, MoFe is inserted into the molten steel for smelting, and the bottom is added during smelting 8kg of slag, including 4.8kg of lime and 1.6kg of fluorite powder. Measure the temperature after complete melting and adjust and control the temperature of molten steel to 1520°C. When the fluidity of deoxidized slag is good, add ...

Embodiment 1

[0043] In the high-temperature alloy material for locomotive motor retaining ring in Example 1 of the present invention, the weight percentages of each element are: C: 0.08%, Si: 1.0%, Mn: 2.0%, P: 0.030%, S: 0.020%, Cr: 16.0%, Al: 0.35%, Ti: 2.35%, Ni: 27.0%, V: 0.50%, Mo: 1.50%, B: 0.01%, and the balance is Fe and unavoidable impurities.

[0044] The preparation process of the superalloy material for the locomotive motor retaining ring of the present embodiment is as follows:

[0045] S1 Raw material preparation: The raw and auxiliary materials are guaranteed to be free from impurities, oil, and moisture, and are carefully baked according to the process requirements before use. The chemical composition of the raw materials is accurate, without any foreign impurities, and meets the smelting requirements.

[0046] S2 vacuum smelting: feeding sequence: bottom slag-pure iron-Ni-VFeCr-return material, when the full melting is 80%, under the condition that the slag system protects...

Embodiment 2

[0049] In the high-temperature alloy material for locomotive motor retaining ring in Example 2 of the present invention, the weight percentages of each element are: C: 0.06%, Si: 0.75%, Mn: 1.60%, P: 0.015%, S: 0.012%, Cr: 15.5%, Al: 0.25%, Ti: 2.30%, Ni: 25.0%, V: 0.35%, Mo: 1.3%, B: 0.007%, and the balance is Fe and unavoidable impurities.

[0050] The preparation process of the superalloy material for the locomotive motor retaining ring of the present embodiment is as follows:

[0051] S1 Raw material preparation: The raw and auxiliary materials are guaranteed to be free from impurities, oil, and moisture, and are carefully baked according to the process requirements before use. The chemical composition of the raw materials is accurate, without any foreign impurities, and meets the smelting requirements.

[0052] S2 vacuum smelting: feeding sequence: bottom slag-pure iron-Ni-VFeCr-return material, when the full melting is 80%, under the condition that the slag system protec...

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Abstract

The invention provides a preparation method of a high-temperature alloy material for a locomotive motor retaining ring. The preparation method comprises the steps of raw material preparation, vacuum smelting and electroslag remelting. According to the preparation method, the process of an existing high-temperature alloy material for the retaining ring is optimally designed, the feeding sequence isreasonably arranged, the preparation process is simplified, the processing equipment is reduced, the preparation cost is reduced, and the market competitiveness of enterprises is improved.

Description

technical field [0001] The invention relates to the field of high-temperature alloy materials, in particular to a preparation method of a high-temperature alloy material for locomotive motor retaining rings. Background technique [0002] In recent years, with the rapid development of my country's rail transit, the demand for locomotive motor components is increasing, and the requirements are getting higher and higher. [0003] Among them, the retaining ring, as one of the important parts of the locomotive motor assembly, needs to bear high stress, has sufficient high temperature strength, good shape and toughness, so its preparation process is more complicated and requires more processing equipment. The preparation cost is higher. Contents of the invention [0004] The purpose of the present invention is to solve the shortcomings in the prior art and provide a method for preparing a high-temperature alloy material for locomotive motor retaining rings, which is used to sol...

Claims

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Application Information

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IPC IPC(8): C22B9/18C22C33/04C22C38/02C22C38/04C22C38/06C22C38/44C22C38/46C22C38/50C22C38/54C22C38/58
CPCC22B9/18C22C33/04C22C38/02C22C38/06C22C38/04C22C38/58C22C38/50C22C38/46C22C38/44C22C38/54
Inventor 华鹏夏东兴张加国武冬平邵兴明
Owner 江苏新核合金科技有限公司
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