Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nitridation quenching process based on vacuum carburization machine

A vacuum carburizing and process technology, used in quenching devices, manufacturing tools, heat treatment equipment, etc., can solve the problems of wasting plant space and wasting the cost of purchasing equipment, and achieve cost savings and good heat treatment effects.

Inactive Publication Date: 2012-10-17
鑫光热处理工业(昆山)有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It not only wastes the cost of purchasing equipment, but also wastes the corresponding workshop space

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nitridation quenching process based on vacuum carburization machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Specific embodiments of the present invention will be further described in detail below.

[0014] like figure 1 As shown, the vacuum carburizing machine includes the following structures: an antechamber 10, a heating chamber 12, an oil pool 14, and it also includes a conveyor belt for transporting workpieces to be processed between the antechamber 10, the heating chamber 12, and the oil pool 14 ( not shown), the heating chamber 12 is connected to the ammonia gas pipe 16 .

[0015] And a kind of nitriding quenching process based on vacuum carburizing machine of the present invention is to finish in vacuum carburizing machine, and it comprises the following steps:

[0016] 1) Preheating, the workpiece is sent into the heating chamber 12 of the vacuum carburizing machine through the front chamber 10 and heated to 500-700°C, and the best temperature is about 600°C±3°C;

[0017] 2) Ammonia gas is charged, and ammonia gas is charged into the heating chamber 12 of the vacuum...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a nitridation quenching process based on a vacuum carburization machine. The nitridation quenching process is characterized by comprising the following steps of: (1) pre-heating: putting a work piece into a heating chamber of the vacuum carburization machine to be heated to 500-700 DEG C; (2) inflating ammonia: inflating the ammonia into the heating chamber of the vacuum carburization machine; (3) nitriding: keeping nitriding the work piece at the temperature of 600 DEG C in the heating chamber of the vacuum carburization machine for 6-12 hours; and (4) cooling: putting the work piece into an oil tank of the vacuum carburization machine to be cooled for 10-20 min. The invention provides the nitridation quenching process which is the valuable experiences obtained by repeated experiments and is carried out by using the vacuum carburization machine. The existing equipment is sufficiently utilized and the cost is saved; and the heat treatment effect is very good through longer time of production practices so that the nitridation quenching process has a very great popularization prospect.

Description

technical field [0001] The invention relates to a metal heat treatment process, in particular to a nitriding quenching process using a vacuum carburizing machine. Background technique [0002] Vacuum carburizing machine is a common metal heat treatment equipment, which includes a front chamber, a heating chamber and an oil pool for cooling, wherein the heating chamber is externally connected with a carburizing agent gas pipe and an ammonia gas pipe to feed carburizing agent and ammonia gas. The current heat treatment processes that can be carried out using vacuum carburizing machines include quenching and tempering, carburizing and carbonitriding. Using vacuum carburizing machine to do nitriding quenching and nitriding quenching treatment process, although theoretically achievable, has not been well applied because of the complexity of the process and the instability of the effect. Including many vacuum carburizing machines imported from abroad, the instructions only indica...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C8/24C21D1/63C21D1/773
Inventor 杨洪波
Owner 鑫光热处理工业(昆山)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com