Check patentability & draft patents in minutes with Patsnap Eureka AI!

Composite microalloyed high impact energy cast steel and manufacturing method thereof

A technology of microalloying and manufacturing method, which is applied in the field of cast steel with high impact energy, can solve the problems of affecting the operation of complete sets of equipment, insufficient impact resistance, and difficulty in meeting the requirements of use, and achieves good impact toughness, low production cost, and good The effect of economic and social benefits

Inactive Publication Date: 2012-06-27
ZHANGJIAGANG DINGLI CAST STEEL
View PDF4 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This steel is a kind of steel with good strength and toughness, but the impact energy used for sampling the pin row seat body on the scraper conveyor is ≤38J. In China, ZG30MnSi material is mainly used, and its impact energy is only ≤30 J, and the impact resistance is obviously insufficient. , it is difficult to meet the use requirements, and the operation of the complete set of equipment is often affected by the damage of this part during the use of the equipment

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The invention provides a composite microalloyed cast steel with high impact energy. The chemical composition and mass percentage of the cast steel are: C: 0.18-0.22; Si: 0.20-0.50; Mn: 1.20-1.50; Cr: 0.3-0.6; Ni: 0.6-0.9; Mo: 0.15-0.30; V: 0.05-0.08; Ti: 0.03-0.05; Re: 0.01-0.02. Among them, the main functions of each alloy are:

[0014] Carbon (C): The higher the carbon content, the higher the strength and hardness of the steel, but the lower the plasticity and toughness;

[0015] Silicon (Si): Strengthen ferrite, increase tensile strength and yield strength, improve heat resistance and corrosion resistance, reduce plasticity and toughness;

[0016] Manganese (Mn): Improves strength, hardness and wear resistance;

[0017] Chromium (Cr): reduces the thermal conductivity of steel and improves the wear resistance of steel;

[0018] Nickel (Ni): expands the austenite zone, is an effective element for austenitization, improves strength without significantly reducing plas...

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
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high impact energy cast steel, in particular to a composite microalloyed high impact energy cast steel capable of being used as key components of a pin row seat on a scraper conveyor in coal mining machinery and having high impact energy, simple processing technique and low cost. The chemical ingredients of the cast steel and the mass percents thereof are as follows: 0.18-0.22% of C, 0.20-0.50% of Si, 1.20-1.50% of Mn, 0.3-0.6% of Cr, 0.6-0.9% of Ni, 0.15-0.30% of Mo, 0.05-0.08% of V, 0.03-0.05% of Ti and 0.01-0.02% of Re. The tensile strength of the cast steel is 930-1080 MPa, the yield strength is not smaller than 830 MPa, the extensibility is not smaller than 9%, the impact energy is not smaller than 50 J, and the hardness thereof is 292-337 HB.

Description

technical field [0001] The invention relates to a cast steel with high impact energy, in particular to the cast steel with high impact energy added with trace vanadium, titanium and rare earth elements, which can be used for the key parts of the pin row seat on the scraper conveyor of coal mining equipment and its manufacturing method. Background technique [0002] With the rapid development of the energy industry, the demand for underground coal mining equipment continues to increase. Various coal mining equipment have been developed at home and abroad to meet this requirement. The pin row seat on the scraper conveyor is a key part of the whole set of coal mining equipment. Its quality directly affects the normal operation and maintenance cost of the equipment. Improving its quality has always been the goal pursued by scientific and technological workers. For a long time, foreign pin seats are mainly made of 22NiMoCr56. This steel is a kind of steel with good strength and ...

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): C22C38/50C22C33/06C21C7/06B22D1/00
Inventor 郭凯成
Owner ZHANGJIAGANG DINGLI CAST STEEL
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com