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Preparation method of nanometer composite wear resisting alloy

A wear-resistant alloy and nano-composite technology, which is applied in the field of preparation of nano-composite wear-resistant alloys, can solve the problems of decreased high temperature wear resistance, poor stability, easy deformation, etc., to achieve enhanced mechanical properties, good stability, and not easy to crack. Effect

Inactive Publication Date: 2016-09-07
袁春华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of easy deformation and cracking, poor stability and sharp decline in high temperature wear resistance of the current high boron wear-resistant alloys, a method for treating silicon oxide whiskers and titanium oxide whiskers is provided. , Silicon carbide whiskers are ball milled to obtain powder, and then the powder is reacted with glass powder under high temperature and high pressure to obtain nanostructure ceramics, and then metals such as reduced iron powder and titanium diboride are added to the nanostructure ceramics to mix and press to form a blank. Then sintering the billet and quenching with sodium silicate to obtain a nanocomposite wear-resistant alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] First, weigh 6g of silicon oxide whiskers, 3g of titanium oxide whiskers, and 8g of silicon carbide whiskers in sequence, add them to a ball mill, then add 100mL of deionized water, and ball mill with zirconium balls for 2 hours to obtain a slurry, and place the slurry in Dry in an oven at 95°C for 6 hours to obtain powder; then weigh 5g of glass, pulverize it with a pulverizer, and sieve to obtain a 100-mesh powder. Add the glass powder into a beaker, add the above powder into the beaker, and stir for 5 minutes. The mixed powder is obtained, and the mixed powder is added to the high-pressure reactor, the temperature is controlled at 700°C, the pressure is 20MPa, and the reaction is stirred for 4 hours to obtain the reactant; the above reactant is added to the flask, and the flask is placed in an ice-water bath , control the temperature at 0°C, stir for 20 minutes to obtain a solid, put the solid in an oven at 95°C and dry for 2 hours to obtain nanostructured ceramics; a...

example 2

[0019] First, weigh 7g of silicon oxide whiskers, 4g of titanium oxide whiskers, and 9g of silicon carbide whiskers in turn, add them to a ball mill, then add 150mL of deionized water, and ball mill with zirconium balls for 2.5 hours to obtain a slurry, and mix the slurry Dry in an oven at 100°C for 6.5 hours to obtain powder; then weigh 7g of glass, pulverize it with a pulverizer, and sieve it to obtain a 150-mesh powder. Add the glass powder into a beaker, add the above powder into the beaker, and stir 8min, the mixed powder was obtained, and the mixed powder was added to the high-pressure reactor, the temperature was controlled at 750°C, the pressure was 25MPa, and the reaction was stirred for 4.5h to obtain the reactant; the above reactant was added to the flask, and the flask was placed in In an ice-water bath, control the temperature at 3°C, stir for 25 minutes to obtain a solid, and place the solid in an oven at 100°C to dry for 2.5 hours to obtain nanostructured ceramic...

example 3

[0022] First, weigh 8g of silicon oxide whiskers, 5g of titanium oxide whiskers, and 10g of silicon carbide whiskers in turn, add them to a ball mill, then add 200mL of deionized water, and ball mill with zirconium balls for 3 hours to obtain a slurry, and place the slurry in Dry in an oven at 105°C for 7 hours to obtain powder; then weigh 8g of glass, pulverize it with a pulverizer, and sieve to obtain a 200-mesh powder. Add the glass powder into a beaker, add the above powder into the beaker, and stir for 10 minutes. The mixed powder is obtained, and the mixed powder is added to the high-pressure reactor, the temperature is controlled at 800 ° C, the pressure is 30 MPa, and the reaction is stirred for 5 hours to obtain the reactant; the above reactant is added to the flask, and the flask is placed in an ice-water bath , control the temperature at 5°C, stir for 30 minutes to obtain a solid, put the solid in an oven at 105°C and dry for 3 hours to obtain nanostructured ceramics...

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Abstract

The invention relates to a preparation method of a nanometer composite wear resisting alloy, and belongs to the technical field of alloy preparation. The ball milling is performed for silicon oxide whiskers, titanium oxide whiskers and silicon carbide whiskers to obtain powder; then, the powder and glass powder are reacted under high temperature and high pressure to obtain nanometer structured ceramic; such metal as reduced iron powder and titanium diboride is added in the nanometer structured ceramic for mixing and pressing to obtain a blank; and the sintering and the sodium silicate quenching are performed for the blank to obtain the nanometer composite wear resisting alloy. The wear resisting alloy, prepared by the method, is not easy to deform and crack, is excellent in stability, hardly changes high-temperature wear resistance, enhances the mechanical performance through adding the nanometer structured ceramic, delays the chilling of the wear resisting alloy by quenching liquid through using sodium silicate solution as a quenching agent, realizes the purposes of no split and no crack of the wear resisting alloy in quenching, and is simple in operation and easy to realize industrial production.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite wear-resistant alloy, belonging to the technical field of alloy preparation. Background technique [0002] Wear-resistant materials play a very important role in the national economy. Commonly used wear-resistant materials are mainly high-manganese steel, high-chromium cast iron and nickel-hard cast iron. High-manganese steel will show excellent wear resistance only when austenite transforms into martensite under strong impact in industrial and mining, and high-manganese steel will show excellent wear resistance. Chromium cast iron and nickel hard cast iron contain expensive nickel, molybdenum, vanadium, niobium and other alloying elements, resulting in high production costs and weak market competitiveness. On this basis, high-boron wear-resistant alloys have been successfully developed at home and abroad with cheap boron as the main alloying element. [0003] However, ordinary high-bor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/14C22C47/14C22C47/06C22C101/06C22C101/14
CPCC22C49/14C22C47/06C22C47/14
Inventor 袁春华孟浩影
Owner 袁春华
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