Method for optimized quenching process for obtaining 8Cr4Mo4V steel

A process, austempering technology, applied in the direction of quenching agent, manufacturing tools, heat treatment equipment, etc., can solve the problems of inability to effectively control the steel structure, unsatisfactory wear resistance, low hardness, etc., to achieve space for performance improvement, the effect is remarkable , the effect of low quenching temperature
CN111411203AActive Publication Date: 2020-07-14SHENYANG POLYTECHNIC UNIV
7 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG POLYTECHNIC UNIV
Publication Date
2020-07-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for an optimized quenching process for obtaining 8Cr4Mo4V steel. The method comprises the following steps of (1) determining a heating solution process; (2) determining the time point of the highest hardness of isothermal hardening; (3) carrying out composite quenching treatment on the basis of the step (2); (4) selecting an optimized composite quenching process sample; and (5) carrying out tempering treatment on the optimized composite quenching process sample obtained in the step (4) at 510-550 DEG C for 1.8-2.5 h for 3-4 times, and obtaining the 8Cr4Mo4V steel subjected to final optimized heat treatment. The method has the advantages of scientificity, feasibility, simplicity in operation and the remarkable effect, and a space for improving the performance of the 8Cr4Mo4V steel is enlarged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention belongs to the field of special steel heat treatment research, and relates to a quenching technology for effectively improving the structure of 8Cr4Mo4V steel and a method for obtaining an optimized quenching process for 8Cr4Mo4V steel. Background technique:

[0002] 8Cr4Mo4V steel is an important high-temperature bearing steel, widely used in the manufacture of high-temperature bearing components such as aero-engines and gas turbines. In recent years, some scholars have conducted extensive research on the heat treatment technology of 8Cr4Mo4V steel, and explored a series of related heat treatment procedures. With the continuous development of industrial technology and production level, the performance requirements of 8Cr4Mo4V steel are getting higher and higher, and the original heat treatment system can no longer meet the needs of the development of the times. It is urgent to further refine and quantify the steel structure, and to exp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More