CN104402442B - A kind of cutting tool high wear-resistant pottery and preparation method thereof - Google Patents

Abstract

A kind of cutting tool, with high wear-resistant pottery, is made up of the raw material of following weight portion: boron carbide 4-6, nano silicon 3-4, silicones 2-2.5, glycerol 1-1.5, acrylamide 1-1.4, SiC50-60, silica flour 13-15, deionized water are appropriate, appropriate amount of ethanol, Polyethylene Glycol 1.7-2, antiwear assistant 3-4; The hard exquisiteness of ceramic quality of the present invention, wearability is fabulous, and heat conductivity is good, it is adaptable to cutting tool, long service life; The antiwear assistant of the application of the invention, by increasing capacitance it is possible to increase the surface smoothness of pottery, wearability and thermostability.

Description

A kind of cutting tool high wear-resistant pottery and preparation method thereof

Technical field

The present invention relates to ceramic cutting tool material field, particularly relate to a kind of cutting tool high wear-resistant pottery and preparation method thereof.

Background technology

Development along with new and high technology, cutter material is proposed the more strict and requirement of harshness by mechanical industry, need now material that workhardness is higher, need higher stock-removing efficiency, machining accuracy to also require that height, this performance just requiring to improve cutter, the cutting material hardness such as traditional high-speed steel is inadequate, and waste the resources such as rare molybdenum, nickel, therefore sintex arises at the historic moment. Ceramic cutting-tool possessed high rigidity, high density, high temperature resistant, the features such as diamagneticization, antioxidation, corrosion resistance are strong, chemical stability good, high-wearing feature, but still there is the shortcomings such as frangible, poor radiation, thermal shock resistance are poor, abrasion resistance is limited, need to improve, simultaneously need to constantly reduce production cost, realize enterprise's maximum benefit, promote scientific and technological progress.

Summary of the invention

It is an object of the invention to provide a kind of cutting tool high wear-resistant pottery and preparation method thereof, this hard exquisiteness of pottery quality, wearability is fabulous, and heat conductivity is good.

Technical scheme is as follows:

A kind of cutting tool is with high wear-resistant pottery, it is characterised in that be made up of the raw material of following weight portion: boron carbide 4-6, nano silicon 3-4, silicones 2-2.5, glycerol 1-1.5, acrylamide 1-1.4, SiC50-60, silica flour 13-15, deionized water in right amount, appropriate amount of ethanol, Polyethylene Glycol 1.7-2, antiwear assistant 3-4;

Described antiwear assistant is made up of the raw material of following weight portion: silicon nitride 1-1.4, aluminium nitride 1-1.4, titanium nitride 1-1.3, carbonitride 0.4-0.7, zirconium oxide 1-2, bortz powder 1-2, hafnium oxide 0.3-0.4, silane coupler kh-5501-2, nitrogenize silver 0.7-0.9, carborundum 1-2, polyacrylate 0.4-0.6, ethanol 6-9, water 7-11; Preparation method is: ethanol, polyacrylate, silane coupler kh-550 is added to the water, stirs, adds zirconium oxide, carborundum, heat to 70-80 DEG C, stirring reaction 20-30 minute, add other residual componentss, stir 10-20 minute, ultrasonic disperse 6-8 minute, filter, dry, pulverize, cross 40 mesh sieves, under nitrogen atmosphere, calcine 30-40 minute at 1380-1440 DEG C, pulverize, cross 40 mesh sieves, to obtain final product.

The described cutting tool preparation method of high wear-resistant pottery, it is characterised in that comprise the following steps:

(1) by boron carbide, SiC, silica flour mixing, ball milling, cross 300 mesh sieves, obtain granule;

(2) granule mixing glycerol, acrylamide and (1st) step obtained, add the ethanol of the deionized water of 20-25% weight portion, 7-10% weight portion, it is mixed into pureed, send into ball milling 2-3 in ball mill individual hour, dry, send in calcining furnace, calcine 1-2 hour at 800-900 DEG C, take out and pulverize, cross 60 mesh sieves, obtain granule;

(3) granule that (2nd) step obtains is mixed with other residual componentss, add the deionized water of 3-4 times of weight portion, Polyethylene Glycol, ball milling 2-3 hour, dry at 110-120 DEG C, cross 40 mesh sieves, hot pressing at 1580-1640 DEG C, hot pressing pressure is 20-30MPa, hot pressing time is 50-60 minute, to obtain final product.

Beneficial effects of the present invention

The hard exquisiteness of ceramic quality of the present invention, wearability is fabulous, and heat conductivity is good, it is adaptable to cutting tool, long service life; The antiwear assistant of the application of the invention, by increasing capacitance it is possible to increase the surface smoothness of pottery, wearability and thermostability.

Detailed description of the invention

A kind of cutting tool, with high wear-resistant pottery, is made up of the raw material of following weight portion (kilogram): boron carbide 5, nano silicon 3.5, silicones 2.3, glycerol 1.3, acrylamide 1.2, SiC55, silica flour 14, deionized water are appropriate, appropriate amount of ethanol, Polyethylene Glycol 1.8, antiwear assistant 3.5;

Described antiwear assistant is made up of the raw material of following weight portion (kilogram): silicon nitride 1.2, aluminium nitride 1.2, titanium nitride 1.2, carbonitride 0.6, zirconium oxide 1.5, bortz powder 1.5, hafnium oxide 0.3, silane coupler kh-5501.5, nitrogenize silver 0.8, carborundum 1.5, polyacrylate 0.5, ethanol 7, water 9; Preparation method is: ethanol, polyacrylate, silane coupler kh-550 is added to the water, stirs, adds zirconium oxide, carborundum, heat to 75 DEG C, stirring reaction 25 minutes, add other residual componentss, stir 15 clocks, ultrasonic disperse 7 minutes, filter, dry, pulverize, cross 40 mesh sieves, under nitrogen atmosphere, calcine 35 minutes at 1420 DEG C, pulverize, cross 40 mesh sieves, to obtain final product.

The described cutting tool preparation method of high wear-resistant pottery, comprises the following steps:

(1) by boron carbide, SiC, silica flour mixing, ball milling, cross 300 mesh sieves, obtain granule;

(2) granule mixing glycerol, acrylamide and (1st) step obtained, add the ethanol of the deionized water of 23% weight portion, 8% weight portion, it is mixed into pureed, send into ball milling 2.5 hours in ball mill, dry, send in calcining furnace, calcine 1.5 hours at 850 DEG C, take out and pulverize, cross 60 mesh sieves, obtain granule;

(3) granule that (2nd) step obtains is mixed with other residual componentss, add the deionized water of 3.6 times of weight portions, Polyethylene Glycol, ball milling 2.6 hours, dry at 115 DEG C, cross 40 mesh sieves, hot pressing at 1630 DEG C, hot pressing pressure is 23MPa, and hot pressing time is 55 minutes, to obtain final product.

Experimental data:

The Vickers hardness of this embodiment pottery is 99GPa, and bending strength is 1128MPa, and fracture toughness is 12MPa m^1/2。

Claims (2)

1. a cutting tool is with high wear-resistant pottery, it is characterised in that be made up of the raw material of following weight portion: boron carbide 4-6, nano silicon 3-4, silicones 2-2.5, glycerol 1-1.5, acrylamide 1-1.4, SiC50-60, silica flour 13-15, deionized water are appropriate, appropriate amount of ethanol, Polyethylene Glycol 1.7-2, antiwear assistant 3-4;

Described antiwear assistant is made up of the raw material of following weight portion: silicon nitride 1-1.4, aluminium nitride 1-1.4, titanium nitride 1-1.3, carbonitride 0.4-0.7, zirconium oxide 1-2, bortz powder 1-2, hafnium oxide 0.3-0.4, silane coupler kh-5501-2, nitrogenize silver 0.7-0.9, carborundum 1-2, polyacrylate 0.4-0.6, ethanol 6-9, water 7-11; The preparation method of antiwear assistant is: ethanol, polyacrylate, silane coupler kh-550 is added to the water, stirs, adds zirconium oxide, carborundum, heat to 70-80 DEG C, stirring reaction 20-30 minute, add other residual componentss, stir 10-20 minute, ultrasonic disperse 6-8 minute, filter, dry, pulverize, cross 40 mesh sieves, under nitrogen atmosphere, calcine 30-40 minute at 1380-1440 DEG C, pulverize, cross 40 mesh sieves, to obtain final product.

2. the cutting tool preparation method of high wear-resistant pottery according to claim 1, it is characterised in that comprise the following steps:

(1) by boron carbide, SiC, silica flour mixing, ball milling, cross 300 mesh sieves, obtain granule;

(2) granule mixing glycerol, acrylamide and (1st) step obtained, add the ethanol of the deionized water of 20-25% weight portion, 7-10% weight portion, it is mixed into pureed, send into ball milling 2-3 in ball mill individual hour, dry, send in calcining furnace, calcine 1-2 hour at 800-900 DEG C, take out and pulverize, cross 60 mesh sieves, obtain granule;

(3) granule that (2nd) step obtains is mixed with other residual componentss, add the deionized water of 3-4 times of weight portion, Polyethylene Glycol, ball milling 2-3 hour, dry at 110-120 DEG C, cross 40 mesh sieves, hot pressing at 1580-1640 DEG C, hot pressing pressure is 20-30MPa, hot pressing time is 50-60 minute, to obtain final product.