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

Method for achieving steel casting full-annealing treatment based on iron casting stress relief annealing furnace

A steel casting, full annealing technology, applied in the field of heat treatment, can solve the problems of high cost of heat treatment, large investment in equipment, unusable iron castings, etc., and achieve the effect of low cost, simple structural transformation and simple structure

Active Publication Date: 2022-01-11
东风汽车零部件集团有限公司通用铸锻分公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantage: its heat treatment cost is too high
Disadvantages: First, the investment in equipment is large; second, it is not available for normal production of iron castings

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
  • Method for achieving steel casting full-annealing treatment based on iron casting stress relief annealing furnace
  • Method for achieving steel casting full-annealing treatment based on iron casting stress relief annealing furnace
  • Method for achieving steel casting full-annealing treatment based on iron casting stress relief annealing furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solution (including the preferred technical solution) of the present invention will be further described in detail below by means of the accompanying drawings and listing some optional embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower" and so on is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. It is not intended to indicate or imply that the device or element referr...

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

PropertyMeasurementUnit
heating valueaaaaaaaaaa
heating valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for achieving steel casting full-annealing treatment based on an iron casting stress relief annealing furnace. The method comprises the following steps that S1, a fire barrier is additionally arranged on a trolley in a steel casting full-annealing heat treatment chamber of the annealing furnace, the steel casting full-annealing heat treatment chamber is divided into a high-temperature chamber and a low-temperature chamber by the fire barrier, and the high-temperature chamber communicates with a combustion chamber; S2, high-calorific-value coal is added into the combustion chamber; and S3, a combustion fan is started, and compressed air is introduced into the high-temperature chamber when the combustion fan is at a certain temperature. According to the method, structural transformation is simple, full-annealing heat treatment can be effectively conducted on the steel casting, and meanwhile the stress relief heat treatment which does not affect an iron casting is achieved.

Description

technical field [0001] The invention discloses a method for full annealing treatment of steel castings, which belongs to the technical field of heat treatment, and specifically discloses a method for realizing full annealing treatment of steel castings based on a stress relief annealing furnace for iron castings. Background technique [0002] Cast iron workshops are generally equipped with a large stress relief annealing furnace in the production of large castings. When the cast iron workshop produces the cast iron blanks for the mold manufacturer's automobile drawing die, the mold manufacturer packs and orders some steel castings on the mold. These castings must be fully annealed (full annealing temperature 850 ~ 900 ° C). [0003] Generally speaking, iron casting workshops are only equipped with an annealing furnace (400-600°C) for stress relief of iron castings. As a result, the full annealing of this part of steel castings has become a product that restricts the deliver...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/30C21D9/00C21D11/00
CPCC21D1/30C21D9/0006C21D9/0068C21D11/00Y02P10/20
Inventor 何小溪胡启朋程勇马朝阳成安华汪思奇
Owner 东风汽车零部件集团有限公司通用铸锻分公司
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