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Nano diamond alkene-reinforced hard alloy composite material and preparation method thereof

A nanodiamondene and cemented carbide technology, applied in metal processing equipment, transportation and packaging, coating and other directions, can solve the problems of poor hardness, difficulty in taking both hardness and toughness into account, and poor toughness, and achieve high thermal conductivity, Increased hardness, wear resistance and increased service life

Active Publication Date: 2017-06-20
河南省豫星碳材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional cemented carbide is prepared by powder metallurgy with hard particles and binder. The binder is a soft phase. If the content is too much, the material has good toughness but poor hardness. If the content is too low, the hardness is high but the toughness is poor, so the hardness Difficult to balance with toughness at the same time

Method used

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  • Nano diamond alkene-reinforced hard alloy composite material and preparation method thereof
  • Nano diamond alkene-reinforced hard alloy composite material and preparation method thereof
  • Nano diamond alkene-reinforced hard alloy composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A nanodiamondene reinforced hard alloy composite material, the composite material is made of the following raw materials in parts by weight: 30 parts of hard alloy powder, 25 parts of nanodiamondene, 15 parts of 663-Cu-rare earth pre-alloyed powder, Co 15 parts of powder, 5 parts of Ni-Mn pre-alloyed powder, and 10 parts of Fe-P pre-alloyed powder. The nanodiamondene must be cleaned and treated with titanium coating before use, and its particle size ratio is 50nm:100nm:250nm=1:2:4. In the 663-Cu-rare earth pre-alloy powder, Sn5-7%, Zn5-7%, Pb2-4%, rare earth 1-3%, the balance is Cu powder; Ni and Mn in the Ni-Mn pre-alloy powder The weight ratio is 2:1, and the weight ratio of Fe and P in the Fe-P pre-alloyed powder is 5:1. The cemented carbide powder is tungsten carbide.

[0037] The nanodiamantene must undergo the following pretreatment before adding:

[0038] a) Ultrasonic alkaline cleaning: place nanodiamondene in alkaline solution for ultrasonic alkaline cleanin...

Embodiment 2

[0052] A nanodiamondene reinforced cemented carbide composite material, the composite material is made of the following raw materials in parts by weight: 45 parts of cemented carbide, 5 parts of nanodiamondene, 25 parts of 663-Cu-rare earth pre-alloyed powder, Co powder 5 parts, Ni-Mn pre-alloyed powder 15 parts, Fe-P pre-alloyed powder 5 parts. The nanodiamondene must be cleaned and treated with titanium coating before use, and its particle size ratio is 50nm:100nm:250nm=2:3:5. In the 663-Cu-rare earth pre-alloy powder, Sn5-7%, Zn5-7%, Pb2-4%, rare earth 1-3%, the balance is Cu powder; Ni and Mn in the Ni-Mn pre-alloy powder The weight ratio is 2:1, and the weight ratio of Fe and P in the Fe-P pre-alloyed powder is 5:1. The cemented carbide powder is titanium carbide.

[0053] The nanodiamantene must undergo the following pretreatment before adding:

[0054] a) Ultrasonic alkaline cleaning: place nanodiamondene in lye for ultrasonic alkaline cleaning, the ultrasonic freque...

Embodiment 3

[0068] A nanodiamondene reinforced cemented carbide composite material, the composite material is made of the following raw materials in parts by weight: 60 parts of cemented carbide powder, 10 parts of nanodiamondene, 15 parts of 663-Cu-rare earth pre-alloyed powder, Co 5 parts of powder, 5 parts of Ni-Mn pre-alloyed powder, and 5 parts of Fe-P pre-alloyed powder. The nanodiamondene must be cleaned and treated with titanium coating before use, as in Example 1, and its particle size ratio is 50nm:100nm:250nm=1:2:5. In the 663-Cu-rare earth pre-alloy powder, Sn5-7%, Zn5-7%, Pb2-4%, rare earth 1-3%, the balance is Cu powder; Ni and Mn in the Ni-Mn pre-alloy powder The weight ratio is 2:1, and the weight ratio of Fe and P in the Fe-P pre-alloyed powder is 5:1. The cemented carbide powder is tungsten carbide.

[0069] The preparation method of the nanodiamondene reinforced cemented carbide composite material is the same as that in Example 1.

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Abstract

The invention relates to a nano diamond alkene-reinforced hard alloy composite material which is prepared from the following raw materials, by weight, 30-60 parts of hard alloy powder, 5-25 parts of nano diamond alkene, 15-25 parts of 663-Cu-rare earth pre-alloyed powder, 5-15 parts of Co powder, 5-15 parts of Ni-Mn pre-alloyed powder and 5-15 parts of Fe-P pre-alloyed powder, the sum of the above raw materials is 100 parts. The invention also discloses a preparation method of the nano diamond alkene-reinforced hard alloy composite material. By adding a proper amount of the nano diamond alkene, the hardness of the material can be improved to a great extent on the premise of not reducing the original toughness of the hard alloy, so that the wear resistant of the material is greatly enhanced and the service life of the material is greatly prolonged; in addition, the heat conductivity of the nano diamond alkene is high, and by adding the nano diamond alkene, the heat dissipating rate of a hard alloy product can be increased, and the probability of cracking caused by an excessive temperature difference and stress concentration is reduced. The material provided by the invention is simple in preparation method, and a hard alloy manufacturer can realize industrial production without inputting a lot of funds.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a nanodiamondene-reinforced cemented carbide composite material and a preparation method thereof. Background technique [0002] With the rapid development of industries such as machinery manufacturing, mining and construction, more and more wear-resistant materials and their products are used, and at the same time, higher and higher requirements are put forward for the quality of products. At present, there are mainly two kinds of wear-resistant materials commonly used: one is cemented carbide represented by tungsten carbide, and the other is non-metallic superhard material represented by artificial diamond. Compared with cemented carbide, diamond has the characteristics of high hardness, good wear resistance, small friction coefficient and high thermal conductivity. However, cemented carbide has not been completely replaced because compared with diamond,...

Claims

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Application Information

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IPC IPC(8): C22C29/08C22C29/10C22C30/06C22C32/00B22F1/02B22F9/04B22F3/16
CPCC22C29/08C22C29/10C22C30/02C22C30/04C22C30/06C22C32/0047C22C32/0084B22F3/16B22F9/04B22F2009/042B22F1/17
Inventor 张洪涛尹维召杨晋中武艳强李盟文炯王聪
Owner 河南省豫星碳材有限公司