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

A kind of preparation method of composite coating wear-resistant ball

A composite coating, wear-resistant ball technology, applied in the field of wear-resistant materials, can solve the problems of poor wear resistance, heat resistance and corrosion resistance, low hardness, rough crystal structure of wear-resistant balls, etc., to improve corrosion resistance. The effect of high resistance and wear resistance, low comprehensive performance, and simple preparation method

Active Publication Date: 2019-05-14
NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The crystal structure of the existing wear-resistant ball is rough, the hardness is relatively low, and the performance of wear resistance, heat resistance and corrosion resistance is not good, which cannot meet the requirements of modern society for wear-resistant balls

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of composite coating wear-resistant ball

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a composite coating wear-resistant ball, comprising the following steps:

[0022] (1) Prepare wear-resistant ball crude product: wear-resistant ball crude product, composed of the following elements by mass fraction: C 1.82%, Si 1.50%, Cr 0.87%, Mn 1.44%, Ni 0.25%, V 0.27%, Ti 0.02% , Mo 0.08%, Sc 0.03%, P≤0.012%, S≤0.012%, the rest are iron and other unavoidable impurities;

[0023] (2) Prepare coating powder: melt the raw materials to obtain alloy liquid, which is composed of the following elements in mass fraction: Ni 34.5%, W 18.5%, Cr 15.6%, Al 5.5%, Mo 9.0%, Co 0.15%, the rest For iron and other unavoidable impurities, the deoxidized and slag-cleaned alloy liquid is atomized under high pressure under nitrogen protection, the atomization pressure is 4MPa, nano-scale ceramic powder is added during atomization, and separated by a separator after atomization. draw coating powder;

[0024] (3) Plasma spraying: Use acetone to purify the surface...

Embodiment 2

[0028] A preparation method of a composite coating wear-resistant ball, comprising the following steps:

[0029] (1) Prepare wear-resistant ball crude product: wear-resistant ball crude product, composed of the following elements by mass fraction: C 1.33%, Si 1.36%, Cr 1.07%, Mn 1.36%, Ni 0.38%, V 0.29%, Ti 0.02% , Mo 0.06%, Sc 0.05%, P≤0.012%, S≤0.012%, the rest are iron and other unavoidable impurities;

[0030] (2) Preparation of coating powder: melt the raw materials to obtain alloy liquid, which is composed of the following elements by mass fraction: Ni 43.2%, W 16.5%, Cr 12.3%, Al 5.7%, Mo 8.0%, Co 0.16%, the rest For iron and other unavoidable impurities, the deoxidized and slag-cleaned alloy liquid is atomized under high pressure under the protection of argon, the atomization pressure is 3MPa, nano-scale ceramic powder is added during atomization, and separated by a separator after atomization , draw coating powder;

[0031] (3) Plasma spraying: Use acetone to purify...

Embodiment 3

[0035] A preparation method of a composite coating wear-resistant ball, comprising the following steps:

[0036] (1) Prepare wear-resistant ball crude product: wear-resistant ball crude product, composed of the following elements by mass fraction: C 1.13%, Si 1.15%, Cr 0.84%, Mn 1.26%, Ni 0.23%, V 0.24%, Ti 0.01% , Mo 0.06%, Sc 0.02%, P≤0.012%, S≤0.012%, the rest are iron and other unavoidable impurities;

[0037] (2) Prepare coating powder: melt the raw materials to obtain alloy liquid, which is composed of the following elements in mass fraction: Ni 33.7%, W 10.0%, Cr 12.3%, Al 4.6%, Mo 8.0%, Co 0.12%, the rest For iron and other unavoidable impurities, the deoxidized and slag-cleaned alloy liquid is atomized under high pressure under the protection of helium, the atomization pressure is 2MPa, nano-scale ceramic powder is added during atomization, and separated by a separator after atomization , draw coating powder;

[0038] (3) Plasma spraying: Use acetone to purify the s...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method for a composite coating wear-resistant ball and relates to the field of wear-resistant material. The preparation method includes the steps of preparing a wear-resistant ball crude product, preparing coating powder, purifying of the surface of the wear-resistant ball crude product with acetone, spraying a layer of composite coating with the thickness of 25-40Mum on the surface of the wear-resistant ball with a plasma spraying device after sandblasting and cleaning with spraying parameters of 40KW of power, 0.6MPa of main pressure, 0.6MPa of subpressure, power delivery speed of 15g / min and spraying distance of 120mm, putting into a resistance furnace and heating up to 620-640 DEG C after spraying, air cooling and taking out after 1-2 hours of heatpreservation, so as to obtain the composite coating wear-resistant ball. The preparation method for the composite coating wear-resistant ball has the advantages of high mechanical strength, excellentwear resistance and corrosion resistance, simple preparation method and long service life.

Description

technical field [0001] The invention relates to the field of wear-resistant materials, in particular to a preparation method of a composite coating wear-resistant ball. Background technique [0002] Wear-resistant ball is a kind of crushing medium used in ball mills, which can be used to crush materials in ball mills. One is white cast iron with chromium as the main alloying element, referred to as chromium alloy cast iron, and the cast grinding ball with chromium alloy cast iron as material It is called chromium alloy cast iron grinding ball; the other casting grinding ball made of ductile iron is called nodular cast iron grinding ball. Main equipment. During the working process of the ball mill, the grinding ball is the main wearable part, which has a great impact on the cost of use. With the development of industry, various large-scale ball mills have increased year by year, and the consumption of grinding balls has also increased significantly. The crystal structure of ...

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): C23C4/134C23C4/06C22C30/00C22C33/08C22C37/08C22C37/10B02C17/20
CPCB02C17/20C22C30/00C22C33/08C22C37/08C22C37/10C23C4/06C23C4/134
Inventor 李根有李骏
Owner NINGGUO ZHENGXING WEAR RESISTANT MATERIALS