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

White cast iron with higher impact resistance and manufacturing method thereof

A technology of impact resistance, white cast iron, applied in the field of iron-carbon alloys, can solve the problems of low impact resistance, poor fracture resistance, low toughness, etc., to improve toughness and wear resistance, long working life, meet strong impact Effect

Inactive Publication Date: 2019-06-18
徐州艾梅尼克工程机械有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of low toughness, low impact resistance and poor fracture resistance of white cast iron during use, the present invention proposes white cast iron with high impact resistance and a manufacturing method thereof. The composition of the white cast iron is more Reasonable, longer working life, easier to manufacture, can greatly improve the mechanical properties of white cast iron, and can meet the needs of strong impact and other uses

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

[0018] The present invention will be further described below:

[0019] White cast iron with high impact resistance, the composition of white cast iron by weight percentage is as follows: C 8-12%, Si0.05-0.25%, Cr 6.0-7.0%, Mn 0.2-0.38%, Ni 3.6-4.2 %, Mo ≤0.98%, P ≤0.045%, S ≤0.06%, and the balance is Fe.

[0020] A method for manufacturing white cast iron with high impact resistance, comprising the following steps:

[0021] (1) Material preparation: Prepare materials according to the following weight percentages: C 8%, Si 0.05%, Cr 6.0%, Mn 0.2%, Ni3.6%, Mo ≤0.98%, P ≤ 0.045%, S ≤ 0.06%, and the balance is Fe;

[0022] (2) Heating: heat the above components to 1500°C and melt them into liquid white cast iron;

[0023] (3) pouring: pouring liquid white cast iron into the mould;

[0024] (4) mold opening: mold opening after being cooled to room temperature takes out solid white cast iron;

[0025] (5) Quenching: the solid white cast iron is placed in a continuous heat treat...

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 white cast iron with higher impact resistance and a manufacturing method thereof, and belongs to the technical field of iron-carbon alloy. The white cast iron is prepared fromthe following components in percentage by weight: 8-12% of C, 0.05-0.25% of Si, 6.0-7.0% of Cr, 0.2-0.38% of Mn, 3.6-4.2% of Ni, less than or equal to 0.98% of Mo, less than or equal to 0.045% of P, less than or equal to 0.06% of S and the balance of Fe. The components of the white cast iron with higher impact resistance are more reasonable, the manufacturing process is reasonable and clear, the quenching and tempering temperatures are determined through two times of quenching and tempering, the quenching and tempering temperatures are determined through experiments, and the treatment is carried out at the temperatures, so that the toughness and wear resistance of the white cast iron are greatly improved, the working life is longer, the manufacturing is easier, the mechanical properties ofthe white cast iron can be greatly improved, and the use requirements of strong impact and the like can be met.

Description

technical field [0001] The invention belongs to the technical field of iron-carbon alloys, and relates to white cast iron and a manufacturing method thereof, in particular to white cast iron with high impact resistance and a manufacturing method thereof. Background technique [0002] Cast iron in which carbon exists in the form of cementite, its cross-section is off-white. It is a good anti-wear material and works under abrasive wear conditions. White cast iron includes ordinary white cast iron, low alloy white cast iron, medium alloy white cast iron and high alloy white cast iron. [0003] Ordinary white cast iron White cast iron with good wear resistance was made in China as early as the Spring and Autumn Period, and was used as some wear-resistant parts. This kind of cast iron has the characteristics of high carbon and low silicon, and has high hardness, but is very brittle. It is suitable for making parts with small impact load, and is generally used in plowshares, gri...

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): C22C37/10C21D5/04C21D1/18
Inventor 缪伟
Owner 徐州艾梅尼克工程机械有限公司
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