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

Spheroidal graphite cast iron alloy material and preparation method thereof

A technology of alloy material and nodular cast iron, which is applied in the field of cast iron alloy, can solve the problems of brake disc coating deformation, limited high temperature resistance, wear and tear of brake disc coating, etc., achieve uniform growth, uniform grain size, and improve performance Effect

Inactive Publication Date: 2015-01-28
张超
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cast iron alloys have a defect that they have limited high temperature resistance during use. Under high temperature conditions, cast iron alloys will soften. Generally, the suitable temperature for cast iron alloys is lower than 350°C.
However, parts of cast iron alloys such as brake discs will locally generate high temperatures of 800-900°C through friction during the braking process. This result not only wears the coating of the brake disc, but also causes the coating of the brake disc to deform. Affects the performance of the brake disc, so the disc must be replaced after a period of use, which leads to increased costs

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

preparation example Construction

[0018] A method for preparing a ductile iron alloy material, comprising the following steps,

[0019] ingredients,

[0020] Melting, the above ingredients are smelted into liquid at 1250-1280°C, after refining such as slag removal, they are incubated at 1180-1200°C for 1-2 hours for inoculation, and then the temperature is lowered by at least 50°C / min by 100-200°C, and then heated up To 1180-1200 ℃, and keep warm for 0.5-1 hour;

[0021] Casting, casting the solution at a constant temperature and then cooling down to 150-180°C at a constant speed to make a blank;

[0022] Heat treatment, put the cooled blank into a quenching furnace at 750-780°C for 2-4 hours, then quench to 300-400°C in a salt bath, and then heat it for 1-2 hours, then quench to 130-150°C;

[0023] Tempering, keep warm in a tempering furnace at 180-200°C for 2-4 hours and then cool down to room temperature.

[0024] The ingredients are composed of 3.2-3.3% carbon, 2.8-3.0% silicon, 0.03-0.04% magnesium, 0....

Embodiment 1

[0028] The preparation method is:

[0029] A kind of ductile iron alloy material, its batch composition is by weight percentage, the carbon of 3.2%, the silicon of 2.8%, the magnesium of 0.03%, the chromium of 0.01%, the aluminum of 0.005%, the boron of 0.005%, the manganese of 0.6%, 0.08% copper, 0.01% vanadium, 0.01% zirconium, 0.03% tin, 0.001% neodymium, 0.03% barium, less than 0.1% impurities, and the balance is iron.

Embodiment 2

[0031] A kind of ductile iron alloy material, its ingredients are composed by weight percentage, 3.3% carbon, 3.0% silicon, 0.04% magnesium, 0.025% chromium, 0.01% aluminum, 0.01% boron, 0.8% manganese, 0.12% copper, 0.02% vanadium, 0.02% zirconium, 0.05% tin, 0.003% neodymium, 0.035% barium, less than 0.1% impurities, and the balance is iron.

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 relates to a spheroidal graphite cast iron alloy material and a preparation method thereof. The spheroidal graphite cast iron alloy material is prepared from the following materials in percentage by weight: 3.2%-3.3% of carbon, 2.8%-3.0% of silicon, 0.03%-0.04% of magnesium, 0.01%-0.025% of chromium, 0.005%-0.01% of aluminum, 0.005%-0.01% of boron, 0.6%-0.8% of manganese, 0.08%-0.12% of copper, 0.01%-0.02% of vanadium, 0.01%-0.02% of zirconium, 0.03%-0.05% of tin, 0.001%-0.003% of neodymium, 0.03%-0.035% of barium, less than 0.1% of impurities and the balance of iron.

Description

technical field [0001] The invention belongs to the field of cast iron alloys, in particular to a nodular cast iron alloy material and a preparation method. Background technique [0002] In the field of automobile or machinery manufacturing, cast iron alloys are used to prepare parts with high wear resistance or parts with complex structures. The use of cast iron alloy and casting process can reduce the difficulty of processing and reduce production costs. However, cast iron alloys have a defect that they have limited high temperature resistance during use. Under high temperature conditions, cast iron alloys will soften. Generally, the suitable temperature of cast iron alloys is lower than 350°C. However, parts of cast iron alloys such as brake discs will locally generate high temperatures of 800-900°C through friction during the braking process. This result not only wears the coating of the brake disc, but also causes the coating of the brake disc to deform. The performan...

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): C22C37/04C22C37/06C22C37/10
CPCC22C37/04C22C37/06C22C37/10
Inventor 张超
Owner 张超
Features
  • Generate Ideas
  • 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