CN104355652A - Ceramic with good abrasion resistance for cutting tools and preparation method of ceramic - Google Patents

Abstract

The invention relates to a ceramic with good abrasion resistance for cutting tools. The ceramic is characterized by being prepared from the following raw materials in parts by weight: 34-38 parts of calcite, 5-8 parts of mullite, 5-8 parts of alpha-aluminum oxide, 20-25 parts of silicon oxide, 0.4-0.6 parts of epoxidized soybean oil, 10-15 parts of rare-earth tailings, 17-22 parts of serpentine tailings, 1.8-2.1 parts of ethylene bis oleamide, 0.8-1.5 parts of alcohol ester 12, 2-3 parts of calcium sulfate whiskers, a proper amount of deionized water, a proper amount of ethyl alcohol, 1.7-2 parts of polyethylene glycol and 3-4 parts of an abrasion-resistant auxiliary. As the mullite and the rare-earth tailings are added, the ceramic is good in abrasion resistance, thermal shock resistance and oxidation resistance and good in chemical stability, saves resources, and has a good industrial prospect. As the calcium sulfate whiskers are added, the abrasion resistance of the ceramic is improved. The ceramic is suitable for the cutting tools and is long in service life. As the abrasion-resistant auxiliary is added, the surface smoothness, the abrasion resistance and the heat resistance of the ceramic can be improved.

Description

Good cutting tool pottery of a kind of wear resistance and preparation method thereof

Technical field

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

Background technology

Along with the development of new and high technology, mechanical industry proposes the more strict and requirement of harshness to cutter material, the higher material of workhardness, stock-removing efficiency that needs are higher, working accuracy is needed now also to require high, this just requires the performance improving cutter, the cutting material hardness such as traditional rapid steel are inadequate, and waste the resources such as rare molybdenum, nickel, therefore sintex arises at the historic moment.Ceramic cutting-tool has possessed high rigidity, high-density, high temperature resistant, the features such as diamagneticization, anti-oxidant, erosion resistance is strong, chemical stability is good, high-wearing feature, but still there is the shortcomings such as frangible, poor radiation, heat-shock resistance are poor, abrasion resistance is limited, need to improve, need constantly to reduce production cost simultaneously, realize enterprise's maximum benefit, promote scientific-technical progress.

Summary of the invention

The object of the present invention is to provide good cutting tool pottery of a kind of wear resistance and preparation method thereof, this pottery has good wear resistance, heat-shock resistance, anti-oxidant, and chemical stability is good, and has saved resource, has good industrial prospect.

Technical scheme of the present invention is as follows:

The good cutting tool pottery of a kind of wear resistance, is characterized in that being made up of the raw material of following weight part: the two amine hydroxybenzene 1.8-2.1 of calcite 34-38, mullite 5-8, Alpha-alumina 5-8, silicon oxide 20-25, epoxy soybean oil 0.4-0.6, rare-earth tailing 10-15, serpentine tailing 17-22, ethylene, alcohol ester 12 0.8-1.5, calcium sulfate crystal whiskers 2-3, deionized water in right amount, appropriate amount of ethanol, polyoxyethylene glycol 1.7-2, antiwear assistant 3-4;

Described antiwear assistant is made up of the raw material of following weight part: silicon nitride 1-1.4, aluminium nitride 1-1.4, titanium nitride 1-1.3, carbonitride 0.4-0.7, zirconium white 1-2, bortz powder 1-2, hafnia 0.3-0.4, silane coupling agent kh-550 1-2, nitrogenize silver 0.7-0.9, silicon carbide 1-2, polyacrylic ester 0.4-0.6, ethanol 6-9, water 7-11; Preparation method is: ethanol, polyacrylic ester, silane coupling agent kh-550 are added to the water, stir, then add zirconium white, silicon carbide, be heated to 70-80 DEG C, stirring reaction 20-30 minute, then add other remaining components, stir 10-20 minute, ultrasonic disperse 6-8 minute, filter, dry, pulverize, cross 40 mesh sieves, under nitrogen atmosphere, at 1380-1440 DEG C, calcine 30-40 minute, pulverize, cross 40 mesh sieves, to obtain final product.

The preparation method of the good cutting tool pottery of described wear resistance, is characterized in that comprising the following steps:

(1) by calcite, Alpha-alumina, silicon oxide mixing, ball milling, crosses 325 mesh sieves, obtains particle;

(2) by mullite, rare-earth tailing, serpentine tailing mixing, ball milling, crosses 280 mesh sieves, obtains particle;

(3) by epoxy soybean oil, ethylene two amine hydroxybenzene, alcohol ester 12, mix with the particle that first two steps obtain, add the ethanol of the deionized water of 20-25% weight part, 7-10% weight part, be mixed into pureed, send into ball milling 3-4 in ball mill individual hour, dry, send in calcining furnace, 1-2 hour is calcined at 800-900 DEG C, take out and pulverize, cross 300 mesh sieves, obtain particle;

(4) particle that (3) step obtains is mixed with other remaining components, add the deionized water of 3-4 times of weight part, polyoxyethylene 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 effect of the present invention

Pottery of the present invention with the addition of mullite, rare-earth tailing, makes pottery have good wear resistance, heat-shock resistance, anti-oxidant, and chemical stability is good, and has saved resource, has good industrial prospect; By adding calcium sulfate crystal whiskers, add the wear resistance of pottery; This pottery is applicable to cutting tool, long service life; The antiwear assistant of the application of the invention, can increase the surface smoothness of pottery, wear resistance and thermotolerance.

Embodiment

The good cutting tool pottery of wear resistance, is made up of the raw material of following weight part (kilogram): the two amine hydroxybenzene 2 of calcite 36, mullite 7, Alpha-alumina 7, silicon oxide 23, epoxy soybean oil 0.5, rare-earth tailing 13, serpentine tailing 19, ethylene, alcohol ester 12 1.2, calcium sulfate crystal whiskers 2.5, deionized water are appropriate, appropriate amount of ethanol, polyoxyethylene glycol 1.8, antiwear assistant 3.5;

Described antiwear assistant is made up of the raw material of following weight part (kilogram): silicon nitride 1.2, aluminium nitride 1.2, titanium nitride 1.2, carbonitride 0.6, zirconium white 1.5, bortz powder 1.5, hafnia 0.3, silane coupling agent kh-550 1.5, nitrogenize silver 0.8, silicon carbide 1.5, polyacrylic ester 0.5, ethanol 7, water 9; Preparation method is: ethanol, polyacrylic ester, silane coupling agent kh-550 are added to the water, stir, then add zirconium white, silicon carbide, be heated to 75 DEG C, stirring reaction 25 minutes, then add other remaining components, 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 preparation method of the good cutting tool pottery of described wear resistance, comprises the following steps:

(1) by calcite, Alpha-alumina, silicon oxide mixing, ball milling, crosses 325 mesh sieves, obtains particle;

(2) by mullite, rare-earth tailing, serpentine tailing mixing, ball milling, crosses 280 mesh sieves, obtains particle;

(3) by epoxy soybean oil, ethylene two amine hydroxybenzene, alcohol ester 12, mix with the particle that first two steps obtain, add the ethanol of the deionized water of 23% weight part, 8% weight part, be mixed into pureed, in feeding ball mill, ball milling 3.5 hours, dry, sends in calcining furnace, calcine 1.5 hours at 850 DEG C, take out and pulverize, cross 300 mesh sieves, obtain particle;

(4) particle that (3) step obtains is mixed with other remaining components, add the deionized water of 3 times of weight parts, polyoxyethylene glycol, ball milling 2.5 hours, dry at 114 DEG C, cross 40 mesh sieves, hot pressing at 1630 DEG C, hot pressing pressure is 25MPa, and hot pressing time is 52 minutes, to obtain final product.

Experimental data:

The Vickers' hardness of this embodiment pottery is 93GPa, and bending strength is 1044MPa, and fracture toughness property is 13MPam ^1/2.

Claims (2)

1. the good cutting tool pottery of a wear resistance, is characterized in that being made up of the raw material of following weight part: the two amine hydroxybenzene 1.8-2.1 of calcite 34-38, mullite 5-8, Alpha-alumina 5-8, silicon oxide 20-25, epoxy soybean oil 0.4-0.6, rare-earth tailing 10-15, serpentine tailing 17-22, ethylene, alcohol ester 12 0.8-1.5, calcium sulfate crystal whiskers 2-3, deionized water are appropriate, appropriate amount of ethanol, polyoxyethylene glycol 1.7-2, antiwear assistant 3-4;

Described antiwear assistant is made up of the raw material of following weight part: silicon nitride 1-1.4, aluminium nitride 1-1.4, titanium nitride 1-1.3, carbonitride 0.4-0.7, zirconium white 1-2, bortz powder 1-2, hafnia 0.3-0.4, silane coupling agent kh-550 1-2, nitrogenize silver 0.7-0.9, silicon carbide 1-2, polyacrylic ester 0.4-0.6, ethanol 6-9, water 7-11; Preparation method is: ethanol, polyacrylic ester, silane coupling agent kh-550 are added to the water, stir, then add zirconium white, silicon carbide, be heated to 70-80 DEG C, stirring reaction 20-30 minute, then add other remaining components, stir 10-20 minute, ultrasonic disperse 6-8 minute, filter, dry, pulverize, cross 40 mesh sieves, under nitrogen atmosphere, at 1380-1440 DEG C, calcine 30-40 minute, pulverize, cross 40 mesh sieves, to obtain final product.

2. the preparation method that the good cutting tool of wear resistance is ceramic according to claim 1, is characterized in that comprising the following steps:

(1) by calcite, Alpha-alumina, silicon oxide mixing, ball milling, crosses 325 mesh sieves, obtains particle;

(2) by mullite, rare-earth tailing, serpentine tailing mixing, ball milling, crosses 280 mesh sieves, obtains particle;

(3) by epoxy soybean oil, ethylene two amine hydroxybenzene, alcohol ester 12, mix with the particle that first two steps obtain, add the ethanol of the deionized water of 20-25% weight part, 7-10% weight part, be mixed into pureed, send into ball milling 3-4 in ball mill individual hour, dry, send in calcining furnace, 1-2 hour is calcined at 800-900 DEG C, take out and pulverize, cross 300 mesh sieves, obtain particle;

(4) particle that (3) step obtains is mixed with other remaining components, add the deionized water of 3-4 times of weight part, polyoxyethylene 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.