Cast steel matrix for process for preparing forging mould through double-layer build-up welding and preparation method thereof

A process and technology for casting steel, applied in the field of cast steel matrix and its preparation, can solve the problems of easy cracking of the surfacing layer, and achieve the effects of saving forging process, good weldability and excellent welding performance.

Active Publication Date: 2014-01-15
CHONGQING UNIV +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of implementing the above method, the inventor found that the forging die made by the double-layer surfacing process was used repeatedly, and the surfacing layer of the forging die was prone to appear under the repeated impact of the die. detachment

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
  • Cast steel matrix for process for preparing forging mould through double-layer build-up welding and preparation method thereof
  • Cast steel matrix for process for preparing forging mould through double-layer build-up welding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further verified and illustrated below in conjunction with specific experiments.

[0026] In order to verify the effect of the present invention, the applicant has carried out an orthogonal experiment. During the experiment, in the formula of the matrix material of the present invention, the specific proportions of C, Mn, Cr, and Ni four elements that play a major role in the performance of the material are selected, and the orthogonal experiment is adopted. For verification, the process is to obtain the cast steel matrix by normalizing and then tempering, wherein the normalizing temperature is 980-1020°C; the tempering temperature is 550-600°C, and the performance parameters such as the strength of the cast steel matrix obtained by testing , and then adopt the double-layer surfacing welding preparation forging die process described in the background technology to surfacing a transition layer on the surface of the cast steel substrate, and d...

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
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a cast steel matrix for a process for preparing a forging mould through double-layer build-up welding and a preparation method thereof. The cast steel matrix is prepared from the following materials in percentage by element content: 0.2-0.35% of carbon, 0.1-0.5% of silicon, 1.0-1.8% of manganese, not more than 0.01% of phosphorus, not more than 0.01% of sulfur, 0.3-0.8% of chromium, 0.1-0.8% of nickel, 0.1-0.5% of molybdenum, not more than 0.5% of copper and the balance of iron; and the cast steel matrix is obtained by a tempering after normalizing process, wherein the normalizing temperature is within 980-1020 DEG C, the tempering temperature is within 550-600 DEG C, and the thermal insulation time is determined according to the size of a mould. The cast steel matrix prepared by the method disclosed by the invention can simultaneously greatly meet performance requirements of the forging mould on hardness, strength and two aspects, such as ductility and toughness, and also has excellent welding property.

Description

technical field [0001] The invention relates to a method for preparing a forging die based on double-layer metal surfacing welding of a cast steel matrix, in particular to a cast steel matrix used in the process and a preparation method thereof. Background technique [0002] With the rapid development of my country's economic level and the great improvement of the degree of industrialization, the application of various forging dies is becoming more and more common and important. How to use less resources to produce more products with better quality will be It is a direction of industrial development, so when designing forging dies, it is necessary to comprehensively consider its performance and cost. In the prior art, various die steels are often used to manufacture forging dies. Some die steels have good comprehensive properties such as strength, hardness and toughness, which can meet the requirements of forging die working conditions, but generally have higher prices, more...

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): C22C38/44C22C38/58C21D1/18B21J13/02B23P15/24
Inventor 周杰董旭刚卢顺权国政刘阳
Owner CHONGQING UNIV
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap