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Glow-ion nitriding treatment method for gear made of 05Cr17Ni4Cu4Nb material

A glow ion, nitriding treatment technology, applied in the field of metal materials, can solve the bottleneck of service life and qualification rate, difficult to obtain nitride, diffusion layer and uneven hardness, etc., to save energy, improve diffusion layer, prolong The effect of service life and operational reliability

Inactive Publication Date: 2017-03-22
GUIZHOU QUNJIAN PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the nitriding process of this material, it is difficult to obtain nitrides stably, and phenomena such as diffusion layer and uneven hardness appear, which form a bottleneck for improving the service life and qualification rate of the product

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0019] This example is a glow ion nitriding treatment process for gears made of 05Cr17Ni4Cu4Nb material. The process includes the following steps: material preparation→rough turning→solution treatment→finish turning→gear hobbing→precipitation hardening→grinding→sand blasting→nitriding → Inspection → Storage. In this example, after the material has undergone solid solution treatment + precipitation treatment, a glow ion nitriding treatment process is added. The glow ion nitriding process is to process the parts according to the process parameters; min, each temperature is 180-190°C, 300-320°C, 450-470°C, 530-540°C, 510-520°C, each holding time is 5-10min, 5-10min, 25-30min, 840 ~ 870min, 180 ~ 200min, the fourth and fifth sections are nitriding holding temperature, the pressure used is 220 ~ 240Pa, after the fifth section is completed, it is cooled to below 160°C with the furnace.

[0020] When processing according to the above process, the rough turning process reserves a ma...

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PUM

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Abstract

The invention discloses a glow-ion nitriding treatment method for a gear made of a 05Cr17Ni4Cu4Nb material. The method comprises the processes of material preparing, rough turning, solution treating, finish turning, gear hobbing, precipitation hardening, gear grinding, abrasive blasting, nitriding, inspecting and warehousing. According to the method, the glow-ion nitriding treatment process is added after the precipitation hardening treatment process. By means of all the processes adopted in the method, energy can be saved, stability of hardness and a diffusion layer of the gear which is made of the 05Cr17Ni4Cu4Nb material and subjected to glow-ion nitriding treatment, and the technical problems that current products are low in yield and insufficient in fatigue property are well solved. Abrasive resistance of parts is obviously improved, the service life of the parts is prolonged, operation reliability of the parts is improved, and the defects in the prior art are overcome.

Description

technical field [0001] The invention relates to a glow ion nitriding treatment method for gears made of 05Cr17Ni4Cu4Nb material, which belongs to the technical field of metal materials. Background technique [0002] Glow ion nitriding treatment is a new ion bombardment chemical heat treatment method developed in recent years. It has a wide range of applications. It has the characteristics of high efficiency, high wear resistance, energy saving, low labor intensity, and less environmental pollution. The 05Cr17Ni4Cu4Nb material belongs to the precipitation hardening steel type. This material has good mechanical properties and is widely used in the aviation field. With the deepening of various fields, there is a higher demand for the service life of parts. In some fields, the Insufficient fatigue life of materials is a major problem. Nitriding can significantly improve the fatigue performance of materials, and promote the service life of nitrided parts to be greatly improved. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 陈汉兵申曙光
Owner GUIZHOU QUNJIAN PRECISION MACHINERY
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