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A kind of x53 material cyanidation process method

A process method and cyanidation treatment technology, applied in the direction of metal material coating process, solid diffusion coating, coating, etc., to achieve the effect of improving wear resistance

Active Publication Date: 2022-05-06
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no literature report on the chemical heat treatment of X53 material cyanide surface modification

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0024] The technical solution of the present invention is: a X53 material cyanidation process method, the X53 material is treated by sand blowing before cyanidation, and the cyanidation is carried out by using a well-type cyanidation furnace or a controllable atmosphere cyanide furnace.

[0025] X53 material cyanide temperature: the minimum cyanide temperature is AC3 temperature -10°C, in order to prevent NH3 from corroding the substrate at high temperature, the maximum cyanide temperature is T conventional carburizing temperature -20°C, the recommended process temperature range is (850~ 890)°C.

[0026] When adopting controllable atmosphere cyanidation, cyanide carbon potential (0.90~1.10)wt.%, ammonia flow rate is (0.35~0.65)m3 / h; (120±20) drops / min, ammonia flow rate is (0.35~0.65)m3 / h.

[0027] After the cyanidation heat preservation stage is over, the temperature is lowered to (800±20)°C with the furnace, and the heat preservation is carried out for (20-30) min. The inf...

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Abstract

The present application provides a cyanidation process for X53 material, the method comprising: performing sand blowing treatment on X53 material; performing cyanidation treatment on X53 material, and the cyanidation treatment includes the first stage, the second stage and the furnace air cooling stage , the first stage is used to cyanide the X53 material, the second stage is used to adjust the carbide precipitation on the X53 material, and the furnace air cooling stage is used to accelerate the cooling of the X53 material.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and relates to a cyanidation process method of X53 material. Background technique [0002] X53 material is a second-generation carburized bearing gear steel with excellent performance. It has high temperature resistance and is a new generation of high-performance carburized bearing and gear materials. At present, X53 mainly adopts carburizing, quenching, ice cooling, tempering (aging) chemical heat treatment methods for surface modification and strengthening. [0003] With the continuous promotion and application of X53 materials, some X53 materials with small and medium-sized spline structures, due to the relatively small size and modulus of the splines, there is a risk of complete carburization of the tooth top after carburizing. [0004] High-temperature cyaniding is mainly carburizing, forming nitrogen-containing high-carbon austenite, and the carburized layer structure after qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/32C21D1/18C21D6/04
CPCC23C8/32C21D1/18C21D6/04
Inventor 孙振淋钱钰辛玉武
Owner HARBIN DONGAN ENGINE GRP