Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part

A composite reinforcement and ceramic composite technology is applied in the field of preparation of metal-ceramic preform composite reinforcement wear parts, and achieves the effects of strong selectivity, cost saving and good combination.

Active Publication Date: 2013-06-12
NANTONG GAOXIN ANTIWEAR MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to apply 10-60mm self-fluxing alloy materials to the surface of wear-resistant parts to strengthen steel-based composite materials has not been reported in China

Method used

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  • Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part
  • Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part
  • Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Composite cast grinding roller liner

[0044] (1) Mix alumina ceramics with a particle size of 6-50 mesh or surface-pretreated alumina ceramics and iron-based self-fluxing alloy powder with polyvinyl alcohol to obtain a mixture, in which ceramic particles and self-fluxing alloy powder The volume ratio of the ceramic is 1:19~1:1, and the amount of polyvinyl alcohol added is 1%-6% of the ceramic mass;

[0045](2) Fill the above mixture into the cavity of the press mold, place a 2~10mm ordinary steel gasket in advance on the bottom of the cavity, place a layer of 0.2~0.5mm graphite paper on the gasket, press it with a certain pressure, and mold and demould Finally, put the biscuit together with the gasket into a drying oven at 150°C for 2 hours;

[0046] (3) Put the dried biscuit together with the gasket into a vacuum furnace at a temperature of 1000°C and a vacuum degree of 0.2-0.4Pa for sintering for 60 minutes, and after cooling out of the furnace, a metal-c...

Embodiment 2

[0052] Example 2: Composite cast grinding disc liner

[0053] (1) Mix tungsten carbide ceramics with a particle size of 6~50 mesh or tungsten carbide ceramics with surface pretreatment and nickel-based self-fluxing alloy powder with polyvinyl alcohol to obtain a mixture, in which ceramic particles and self-fluxing alloy powder The volume ratio of the ceramic is 1:19~1:1, and the amount of polyvinyl alcohol added is 1%-6% of the ceramic mass;

[0054] (2) Fill the above mixture into the cavity of the press mold, place a 2~10mm ordinary steel gasket in advance on the bottom of the cavity, place a layer of 0.2~0.5mm graphite paper on the gasket, press it with a certain pressure, and mold and demould Finally, put the biscuit together with the gasket into a drying oven at 150°C for 2 hours;

[0055] (3) Put the dried biscuit together with the gasket into a vacuum furnace at a temperature of 1050°C and a vacuum degree of 0.2-0.4Pa for sintering for 90 minutes, and after cooling out...

Embodiment 3

[0061] Example 3: Composite Casting Crusher Hammer

[0062] (1) Mix titanium nitride ceramics with a particle size of 6-50 mesh or surface-pretreated titanium nitride ceramics with cobalt-based self-fluxing alloy powder with polyvinyl alcohol to obtain a mixture, in which ceramic particles and self-fluxing The volume ratio of the alloy powder is 1:19~1:1, and the amount of polyvinyl alcohol added is 1%-6% of the ceramic mass;

[0063] (2) Fill the above mixture into the cavity of the press mold, place a 2~10mm ordinary steel gasket in advance on the bottom of the cavity, place a layer of 0.2~0.5mm graphite paper on the gasket, press it with a certain pressure, and mold and demould Finally, put the biscuit together with the gasket into a drying oven at 150°C for 2 hours;

[0064] (3) Put the dried biscuit together with the gasket into a vacuum furnace at a temperature of 1300°C and a vacuum of 0.2-0.4Pa for sintering for 30 minutes, and after cooling out of the furnace, a meta...

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Abstract

The invention discloses a composite reinforced wear-resistant part of a metal-ceramic prefabricated member and a manufacturing method of the composite reinforced wear-resistant part. The manufacturing method comprises the steps as follows: uniformly mixing ceramic particles with self-fluxing alloy powder to obtain a mixture; filling a mould cavity of a pressing machine with the mixture, pressing by pressure, forming and demoulding, and placing biscuits and gaskets into a drying box for drying; placing the dried biscuits and gaskets into a vacuum furnace for sintering, cooling and discharging to obtain the metal-ceramic composite prefabricated member; carrying out sand blasting on the prefabricated member, and spraying a layer of nickel-based self-fluxing alloy powder onto the surface of the prefabricated member; and placing the processed fabricated member onto the end surface of a cast cavity, and pouring metal liquid formed by smelting metal matrix materials into the bottom of the cast cavity to obtain the composite reinforced wear-resistant part of the metal-ceramic prefabricated member. According to the manufacturing method, the wear resistance and the impact resistance of the composite wear-resistant part are improved.

Description

technical field [0001] The invention relates to a method for preparing a metal-ceramic prefabricated composite reinforced wear-resistant part. Background technique [0002] With the development of science and technology and modern industry, the requirements for wear resistance of materials are getting higher and higher. The wearing parts of equipment in industries such as electric power, cement, mining, metallurgy, and coal are subject to various materials such as coal mines, sandstone, and soil. The wear of the grinding body consumes a large amount of metal every year. In many fields of industrial production, there are harsh working environments, requiring working parts to have comprehensive properties of wear and heat resistance or wear and corrosion resistance at the same time, so materials with a single performance can no longer meet the needs of working conditions. Over the years, the process research on particle reinforced steel matrix composites has been one of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/08B22F1/00B22F3/16
Inventor 钱兵
Owner NANTONG GAOXIN ANTIWEAR MATERIALS TECH CO LTD
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