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

Casting process of automobile brake part

A casting process and automobile braking technology, applied in the field of casting, can solve the problems of prone to premature cracks, prone to abnormal noise and jitter, and achieve the effect of preventing white spots from appearing, not easy to brake and slip, and increasing pearlite.

Inactive Publication Date: 2014-12-03
无锡柯马机械有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, automobile brake parts play a vital role in the entire automobile composition. However, the hardness of the automobile brake parts manufactured by the current method is relatively high, and cracks are prone to appear prematurely during use, especially during the braking process. , prone to abnormal noise and jitter

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 1

[0010] Embodiment 1: First put 10% scrap steel into high-frequency electric furnace to melt into molten steel, then add carbon agent, when the temperature in high-frequency electric furnace rises to 1500 ~ 1800 °, then drop 0.1% chromium, 30% scrap steel, 40% of the pig iron and 20% of the returned material, and then slagging, after the slagging, add 0.7% of ferromanganese and 2% of ferrosilicon alloy. When the temperature in the electric furnace rises to 1500°, the iron is tapped. At this time, 0.5% copper is added to the ladle together with the molten iron, and then poured. After 10 minutes, the casting is taken out, annealed to relieve stress, and it is cooled to room temperature for machining. , check the storage.

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 discloses a casting process of an automobile brake part. The casting process comprises the following steps: adding 0.5%-0.8% by weight of copper and 0.1%-0.3% by weight of chromium into raw materials including carbon, silicon, manganese, sulfur and phosphorus during gray cast iron smelting, melting, pouring, forming, annealing, removing sand, and machining to obtain the automobile brake part. According to the casting process, a small quantity of chromium is added, so that graphite is refined; iron is reduced and pearlite is added, so that martensite transformation in tissues can be reduced, white spots are prevented, slipping of the brake is hardly caused, and the stability and safety of the brake are improved. The actual measurement shows that the automobile brake part has the strength of 250-300MPa and the brake surface hardness of 187-250HB; the service life of the automobile brake part after the automobile brake part is mounted on an automobile is more than 90,000km, and the fatigue test frequency is more than 5,000 times.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a casting process of an automobile brake part. Background technique [0002] At present, automobile brake parts play a vital role in the entire automobile composition. However, the hardness of the automobile brake parts manufactured by the current method is relatively high, and cracks are prone to appear prematurely during use, especially during the braking process. , prone to abnormal noise and jitter. Contents of the invention [0003] The object of the present invention is to provide a casting process for automobile brake parts. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a casting process of automobile brake parts, which is characterized in that copper and chromium are added to the raw materials carbon, silicon, manganese, sulfur and phosphorus when gray cast iron is smelted, 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
IPC IPC(8): C22C37/10C22C33/08
Inventor 孙建新
Owner 无锡柯马机械有限公司
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