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Stainless steel production method

A production method and stainless steel technology, applied in the field of new high-performance elastic materials, can solve problems such as restricting the development and application of alloys, and achieve the effect of wide application range, good pitting corrosion resistance, and good uniform corrosion resistance.

Inactive Publication Date: 2014-05-21
丹阳市锦雄机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the winding test smaller than the specified size, and the brittle cracking problem of forward and reverse bending 90° on the same phase surface also limit the further development and application of the alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The technical solution of the present invention is achieved in the following manner: a stainless steel production method, its chemical composition is (wt.%): C: 0.01-0.03Si: 0.05-0.1Mi: 1-2S: 0.01-0.001P: 0.0015-0.015Cr: 30-35Ni: 8-10Mo: 3-4Cu: 0.2-0.8Le: 0.1-0.01 and the rest is Fe; the production method includes the following steps:

[0019] 1. Vacuum melting:

[0020] (1), raw material preparation: described charge is materials such as Ni plate, metal Cr, industrial pure Fe and metal Mn, Co, standby after baking;

[0021] (2) Charging: Load Ni, Cr, Fe, and Co furnace materials that have been baked into the intermediate frequency smelting furnace, and put C, Mn, Si, and lanthanum-cerium alloys into the material cup.

[0022] (3), refining:

[0023] For low-power chemical materials, after the material melts 70%, increase the power and high-speed melting, and enter the refining period after reaching the refining temperature after complete melting. Refining for 30 min...

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Abstract

The invention relates to a stainless steel production method. The stainless steel comprises the following chemical components (wt.%): 0.01-0.03 of C, 0.05-0.1 of Si, 1-2 of Mi, 0.01-0.001 of S, 0.0015-0.015 of P, 30-35 of Cr, 3-4 of Mo, 0.2-0.8 of Cu, 0.1-0.01 of Le, and the balance Fe. The production method includes: vacuum smelting, electroslag refining, forging cogging, hot rolling molding, cold drawing, and heat treatment. The stainless steel welding material produced by the method has good pitting resistance, crevice corrosion resistance, cavitation and wear corrosion resistance in seawater medium and high fatigue strength.

Description

technical field [0001] The invention relates to a novel high-performance elastic material suitable for a high-temperature chamber and a production method thereof, in particular to the improvement of the elastic material stainless steel. Background technique [0002] With the continuous update and development of aerospace vehicles, the requirements for material performance are getting higher and higher. The working conditions of aerospace vehicles are very complicated, and most components are in service under high composite stress, high temperature and environmental erosion. The main requirements are high temperature resistance, low temperature resistance, high specific strength, high specific stiffness, fatigue resistance, corrosion resistance, long life and low cost. In the current elastic alloy market, the elastic material used in high-end products is super duplex stainless steel alloy. This material has good corrosion resistance and high tensile strength, which can fully ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/44C22C33/06C21D8/00C21D8/06
Inventor 荆泽平
Owner 丹阳市锦雄机械制造有限公司
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