Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of wear-resistant steel casting and its preparation process

A technology for steel castings and blanks, which is applied in the field of wear-resistant steel castings and their preparation technology, can solve the problems of low high temperature strength, poor friction resistance, etc. sexual effect

Active Publication Date: 2022-07-08
安徽中建材开源新材料科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The steel castings in the prior art have the advantages of high strength and good toughness, but their high temperature strength is low and their friction resistance is poor. Therefore, we propose a wear-resistant steel casting and its preparation process to solve the above problems

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

[0023] A wear-resistant steel casting, comprising a steel casting body and a covering material, the components of the steel casting body and their weight percentages are: C 0.33%, Si 0.18%, Mn 0.50%, Cr≤0.3%, Ni≤ 0.3%, Cu≤0.25%, S≤0.035%, P≤0.035%, the balance is Fe; the components of the covering material and their weight percentages are: WC 15%, SiC12%, Mo 17%, FeB 20%, Ni 1%, Cr 2%, additive 2%, binder 3%, balance Fe.

[0024] The additive includes sodium fluoride and borax, and the mass ratio of sodium fluoride and borax is 1:1; the binder includes vinyl ester and boric acid, and the mass ratio of vinyl ester and boric acid is 2:1.

[0025] The preparation process of the above-mentioned wear-resistant steel castings comprises the following steps:

[0026] (1) adding each raw material calculated in proportion to the induction furnace for high-temperature smelting, deoxidizing molten steel with aluminum-coated wire, metamorphizing molten steel with ferrosilicon inoculant, a...

Embodiment 2

[0032] A wear-resistant steel casting, comprising a steel casting body and a covering material, the components of the steel casting body and their weight percentages are: C 0.35%, Si 0.2%, Mn 0.70%, Cr≤0.3%, Ni≤ 0.3%, Cu≤0.25%, S≤0.035%, P≤0.035%, the balance is Fe; the components of the covering material and their weight percentages are: WC 18%, SiC 15%, Mo18%, FeB 22%, Ni 2%, Cr 2%, additive 3%, binder 4%, balance Fe.

[0033] The additive includes sodium fluoride and borax, and the mass ratio of sodium fluoride and borax is 1:1; the binder includes vinyl ester and boric acid, and the mass ratio of vinyl ester and boric acid is 2:1.

[0034] The preparation process of the above-mentioned wear-resistant steel castings comprises the following steps:

[0035] (1) adding each raw material calculated in proportion to the induction furnace for high-temperature smelting, deoxidizing molten steel with aluminum-coated wire, metamorphizing molten steel with ferrosilicon inoculant, an...

Embodiment 3

[0041] A wear-resistant steel casting, comprising a steel casting body and a covering material, the components of the steel casting body and their weight percentages are: C 0.38%, Si 0.36%, Mn 0.80%, Cr≤0.3%, Ni≤ 0.3%, Cu≤0.25%, S≤0.035%, P≤0.035%, the balance is Fe; the components of the covering material and their weight percentages are: WC 20%, SiC 16%, Mo 20%, FeB 25%, Ni 3%, Cr 3%, additive 5%, binder 4%, balance Fe.

[0042] The additive includes sodium fluoride and borax, and the mass ratio of sodium fluoride and borax is 1:1; the binder includes vinyl ester and boric acid, and the mass ratio of vinyl ester and boric acid is 2:1.

[0043] The preparation process of the above-mentioned wear-resistant steel castings comprises the following steps:

[0044] (1) adding each raw material calculated in proportion to the induction furnace for high-temperature smelting, deoxidizing molten steel with aluminum-coated wire, metamorphizing molten steel with ferrosilicon inoculant, ...

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 the technical field of wear-resistant steel castings, in particular to a wear-resistant steel casting and a preparation process thereof, comprising a steel casting body and a covering material. The components of the steel casting body and their weight percentages are: C0. 33‑0.38%, Si0.18‑0.36%, Mn0.50‑0.80%, Cr≤0.3%, Ni≤0.3%, Cu≤0.25%, S≤0.035%, P≤0.035%, the balance is Fe; covered The components of the material and their weight percentages are: WC15‑20%, SiC12‑16%, Mo17‑20%, FeB20‑25%, Ni1‑3%, Cr2‑3%, additive 2‑5%, binder 3-4%, the balance is Fe; in the present invention, a layer of covering material is compounded on the surface of the steel casting body, and the high-temperature molten steel continuously penetrates between the particles of WC and SiC, and the particles of WC and SiC are combined with the metal matrix to form a composite material. layer, which improves the wear resistance and hardness of the substrate; Mo and FeB are sintered at high temperature to form a covering layer on the surface of the metal substrate, and the composite layer and the covering layer are interspersed with each other to form a more continuous coverage on the surface of the metal substrate, which further improves the steel casting. Hardness and wear resistance.

Description

technical field [0001] The invention relates to the technical field of wear-resistant steel castings, in particular to a wear-resistant steel casting and a preparation process thereof. Background technique [0002] Wear-resistant alloy materials are widely used in key components of industrial equipment such as electric power, metallurgy, cement, building materials, and chemical industry. They can withstand abrasive wear, and most of them also withstand the impact of media, such as plate hammers, grinding rollers, hammer heads, lining plates, etc. Annual demand The volume is nearly 4 million tons, and the demand is huge. Friction and wear between workpieces is the main way of failure of relatively moving workpieces. In the case of long-term continuous work, the heat generated by the friction between the workpieces increases the temperature of the friction surface of the workpieces, making the working environment worse. Among the three failure modes of wear, fracture and cor...

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): C22C38/02C22C38/04C22C38/42B22F9/04B22F1/103C22C33/04C23C24/08B22D27/18B22C3/00
CPCC22C38/02C22C38/04C22C38/42B22F9/04C22C33/04C23C24/085B22D27/18B22C3/00B22F2009/043Y02P10/20
Inventor 汪德发陈志勇王印全牛超伟严德辉汪伟赵文定
Owner 安徽中建材开源新材料科技有限公司