Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A kind of production method of h13 continuous casting billet

A production method and continuous casting technology, applied in the direction of improving process efficiency, manufacturing converters, etc., can solve the problems of high energy consumption in electric arc furnace smelting and unfavorable low-cost production, so as to reduce the amount of cutting heads and tails, and reduce energy consumption. consumption and ensure the effect of surface quality

Active Publication Date: 2018-01-12
武汉钢铁有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its electric arc furnace smelting consumes a lot of energy, which is not conducive to low-cost production

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
  • A kind of production method of h13 continuous casting billet
  • A kind of production method of h13 continuous casting billet
  • A kind of production method of h13 continuous casting billet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention is described in detail below:

[0022] Table 1 is the value list of the chemical components of each embodiment of the present invention and comparative examples;

[0023] Table 2 is the main process value list of each embodiment of the present invention and comparative examples;

[0024] Table 3 is a list of test results of each embodiment of the present invention and comparative examples.

[0025] Each embodiment of the present invention is produced according to the following steps:

[0026] 1) Desulfurization pretreatment of blast furnace hot metal is carried out by spraying magnesium powder combined with slag removal method, and the amount of magnesium powder injected is 0.7-0.8Kg / t molten iron, so as to satisfy the principle that the sulfur weight percentage content of molten iron is S≤0.015%;

[0027] 2) Carry out composite converter blowing, control the final slag basicity at 3.0~4.0, blowing end point C at 0.06%~0.12%, end point P≤0.015%, ...

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

Disclosed is a production method of an H13 continuous casting billet. The production method comprises the steps of adopting a method of combining magnesium powder blowing with slagging off to carry out desulfurization pretreatment on blast-furnace molten iron, converter combined blowing, argon blowing treatment, LF refining treatment, RH vacuum treatment, adopting full-process protection casting, and placing the casting billet into a slow cooling pit to be subject to slow cooling. According to the method, giant energy consumption generated by an electric arc furnace can be greatly reduced, the cleanliness of molten steel is high, the head cropping and end cropping amount caused by the die casting process can be reduced, and on the premise that the user needs are met, the production cost is greatly reduced by 6.5%.

Description

technical field [0001] The invention relates to a production method of die steel, in particular to a production method of H13 continuous casting billet. Background technique [0002] H13 die steel is an air-cooled hardened steel, which is the most widely used and most representative hot work die steel. This steel has the advantages of good hardenability, high toughness, high wear resistance, excellent thermal crack resistance and small heat treatment deformation. It is usually used to manufacture forging dies, hot extrusion dies, precision forging dies, Die-casting molds for aluminum, copper and their alloys. However, due to the high alloy content of this type of steel, problems such as segregation and porosity are prone to occur inside the slab, most of them are produced by electric arc furnace, electroslag remelting and forging. Although its technology and product quality are relatively mature, its power consumption is large, resulting in higher production costs. [000...

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 Patents(China)
IPC IPC(8): C22C38/18C22C38/12C22C38/04C22C38/02C21C5/35C21C7/10C21C7/076B22D11/16
CPCB22D11/16C21C5/35C21C7/076C21C7/10C22C38/02C22C38/04C22C38/12C22C38/18Y02P10/20
Inventor 郑建国齐江华周剑华朱敏陈光友王瑞敏费俊杰
Owner 武汉钢铁有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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