CN104446582B - A kind of high-wearing feature machining ceramic and its preparation method - Google Patents
A kind of high-wearing feature machining ceramic and its preparation method Download PDFInfo
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Abstract
A kind of high-wearing feature machining ceramic, be made up of the raw material of following weight part: Alumina gel 2-3, silicon sol 1-2, titanium oxide whisker 10-14, tantalum carbide whisker 10-15, crystal whisker of hexa potassium titanate 10-15, ��-Si3N4 whisker 10-14, sodium metaaluminate 4-6, aluminium nitride 40-45, ethanol is appropriate, deionized water is appropriate, polyacrylic acid 1-1.5, polyoxyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5; The hardness height of the pottery of the present invention, especially has very high bending strength and wear resistance, is applicable to making cutting tool, resistance to lasting work; The wear-resistant auxiliary agent of the application of the invention, it is possible to increase wear resistance and the thermotolerance of pottery.
Description
Technical field
The present invention relates to ceramic cutting tool material field, particularly relate to a kind of high-wearing feature machining ceramic and its preparation method.
Background technology
Cut the Wimet (WC-Co, WC-TiC-Co) that steel, cast iron, alloy steel products and stainless steel etc. generally adopt carbide base at present. The diamond and cubic boron nitride (CBN) that hardness is the highest is also adopted for some exotic materials, but their strength ratio Wimet is lower, and diamond tool is unfavorable for cutting ferrous materials, because the diamond of carbonaceous element is easy and ferro element reaction generates iron carbide, and make diamond loss. And sintex is to a lot of material all Fails To Responds such as iron bases, processing cold hard cast-iron, stellite, heat-resisting nickel-base alloy etc. had good performance.
Current Stupalox has much excellent performance, there is 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 these pottery costs are higher, kind is few, also need the stupalith that further research is new, reduce costs, improve the toughness of sintex, thermal diffusivity, bend resistance, the use properties such as wear-resistant simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of high-wearing feature machining ceramic and its preparation method, the hardness height of this pottery, especially has very high bending strength and wear resistance, is applicable to making cutting tool, resistance to lasting work.
The technical scheme of the present invention is as follows:
A kind of high-wearing feature machining ceramic, it is characterised in that be made up of the raw material of following weight part: Alumina gel 2-3, silicon sol 1-2, titanium oxide whisker 10-14, tantalum carbide whisker 10-15, crystal whisker of hexa potassium titanate 10-15, ��-Si3N4 whisker 10-14, sodium metaaluminate 4-6, aluminium nitride 40-45, ethanol is appropriate, deionized water is appropriate, polyacrylic acid 1-1.5, polyoxyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part: lanthanum trioxide 0.2-0.3, nano zircite 0.6-0.9, yttrium oxide 0.4-0.5, nano aluminium oxide 0.3-0.5, acetic acid 5-7, Yttrium trinitrate 0.3-0.5, zirconium oxychloride 3-3.5,1-2% hydrochloric acid soln is appropriate, water is appropriate, preparation method is: by Yttrium trinitrate, zirconium oxychloride adds in the water of 24-30 weight part, drip after stirring and dissolving and add acetic acid, magnetic agitation 4-5 hour, add nano zircite, nano aluminium oxide, continue to stir 2-3 hour, it is placed under room temperature 1-2 days, add yttrium oxide more while stirring, lanthanum trioxide, stir 2-3 hour, 120-130 DEG C of oil bath is stirred to drying, send into calcining furnace, in nitrogen atmosphere, 50-60 minute is calcined at 1200-1500 DEG C, the 1-2% hydrochloric acid soln adding 2-3 times of weight part washs 2-3 time, it is washed to neutrality, dry, pulverize, cross 100 order sieves, obtain.
The preparation method of described high-wearing feature machining ceramic, it is characterised in that comprise the following steps:
(1) by titanium oxide whisker, tantalum carbide whisker, crystal whisker of hexa potassium titanate, the mixing of ��-Si3N4 whisker, add the deionized water of 4-5 times of weight part, stir post-heating to 70-80 DEG C, stir 10-15 minute, then add sodium metaaluminate, Alumina gel, silicon sol, continue to stir 30-40 minute, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, 40-50 minute is calcined at 700-800 DEG C, pulverize, cross 50 order sieves, obtain particle;
(2) aluminium nitride is added the ethanol of 0.8-1 times of weight part, is milled to below 50 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with other remaining components except polyacrylic acid, polyoxyethylene glycol, get the deionized water of 3-4 times of weight part of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir evenly, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dry at 110-120 DEG C, cross 40 order sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1610-1670 DEG C, hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and naturally cooling, to obtain final product.
The useful effect of the present invention
The hardness height of the pottery of the present invention, especially has very high bending strength and wear resistance, is applicable to making cutting tool, resistance to lasting work; The wear-resistant auxiliary agent of the application of the invention, it is possible to increase wear resistance and the thermotolerance of pottery.
Embodiment
A kind of high-wearing feature machining ceramic, is made up of the raw material of following weight part (kilogram): Alumina gel 2.5, silicon sol 1.5, titanium oxide whisker 12, tantalum carbide whisker 13, crystal whisker of hexa potassium titanate 13, ��-Si3N4 whisker 12, sodium metaaluminate 5, aluminium nitride 43, ethanol is appropriate, deionized water is appropriate, polyacrylic acid 1.3, polyoxyethylene glycol 1.4, wear-resistant auxiliary agent 4.5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part (kilogram): lanthanum trioxide 0.2, nano zircite 0.8, yttrium oxide 0.4, nano aluminium oxide 0.4, acetic acid 6, Yttrium trinitrate 0.4, zirconium oxychloride 3.3,1.5% hydrochloric acid soln is appropriate, water is appropriate, preparation method is: by Yttrium trinitrate, zirconium oxychloride adds in the water of 27 weight parts, drip after stirring and dissolving and add acetic acid, magnetic agitation 4.5 hours, add nano zircite, nano aluminium oxide, continue to stir 2.5 hours, it is placed in room temperature lower 1.5 days, add yttrium oxide more while stirring, lanthanum trioxide, stir 2.5 hours, 125 DEG C of oil baths are stirred to drying, send into calcining furnace, in nitrogen atmosphere, calcine 55 minutes at 1400 DEG C, 1.5% hydrochloric acid soln adding 2.5 times of weight parts washs 3 times, it is washed to neutrality, dry, pulverize, cross 100 order sieves, obtain.
The preparation method of described high-wearing feature machining ceramic, comprises the following steps:
(1) by titanium oxide whisker, tantalum carbide whisker, crystal whisker of hexa potassium titanate, the mixing of ��-Si3N4 whisker, add the deionized water of 4.5 times of weight parts, stir post-heating to 75 DEG C, stir 13 minutes, then add sodium metaaluminate, Alumina gel, silicon sol, continue to stir 35 minutes, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, calcine 45 minutes at 750 DEG C, pulverize, cross 50 order sieves, obtain particle;
(2) aluminium nitride is added the ethanol of 0.9 times of weight part, is milled to below 50 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with other remaining components except polyacrylic acid, polyoxyethylene glycol, get the deionized water of 3.5 times of weight parts of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir evenly, add mixing material, ball milling 1.5 hours, ultrasonic disperse 15 minutes, dry at 115 DEG C, cross 40 order sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1650 DEG C, hot pressing pressure is 28MPa, and hot pressing time is 45 minutes, and naturally cooling, to obtain final product.
Experimental data:
The Vickers' hardness of this embodiment pottery is 104GPa, and bending strength is 1180MPa, and fracture toughness property is 16MPa m1/2��
Claims (1)
1. a high-wearing feature machining ceramic, it is characterised in that be made up of the raw material of following weight part: Alumina gel 2-3, silicon sol 1-2, titanium oxide whisker 10-14, tantalum carbide whisker 10-15, crystal whisker of hexa potassium titanate 10-15, ��-Si3N4Whisker 10-14, sodium metaaluminate 4-6, aluminium nitride 40-45, ethanol is appropriate, deionized water is appropriate, polyacrylic acid 1-1.5, polyoxyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5;
Described wear-resistant auxiliary agent is made up of the raw material of following weight part: lanthanum trioxide 0.2-0.3, nano zircite 0.6-0.9, yttrium oxide 0.4-0.5, nano aluminium oxide 0.3-0.5, acetic acid 5-7, Yttrium trinitrate 0.3-0.5, zirconium oxychloride 3-3.5,1-2% hydrochloric acid soln is appropriate, water is appropriate, preparation method is: by Yttrium trinitrate, zirconium oxychloride adds in the water of 24-30 weight part, drip after stirring and dissolving and add acetic acid, magnetic agitation 4-5 hour, add nano zircite, nano aluminium oxide, continue to stir 2-3 hour, it is placed under room temperature 1-2 days, add yttrium oxide more while stirring, lanthanum trioxide, stir 2-3 hour, 120-130 DEG C of oil bath is stirred to drying, send into calcining furnace, in nitrogen atmosphere, 50-60 minute is calcined at 1200-1500 DEG C, the 1-2% hydrochloric acid soln adding 2-3 times of weight part washs 2-3 time, it is washed to neutrality, dry, pulverize, cross 100 order sieves, obtain,
The preparation method of described high-wearing feature machining ceramic comprises the following steps:
(1) by titanium oxide whisker, tantalum carbide whisker, crystal whisker of hexa potassium titanate, ��-Si3N4Whisker mixes, and adds the deionized water of 4-5 times of weight part, stirs post-heating to 70-80 DEG C, stir 10-15 minute, then add sodium metaaluminate, Alumina gel, silicon sol, continue to stir 30-40 minute, spraying dry, obtain particle, then send in calcining furnace, in nitrogen atmosphere, 40-50 minute is calcined at 700-800 DEG C, pulverize, cross 50 order sieves, obtain particle;
(2) aluminium nitride is added the ethanol of 0.8-1 times of weight part, is milled to below 50 orders, dry, obtain particle;
(3) particle first two steps obtained mixes with wear-resistant auxiliary agent, obtain mixing material, get the deionized water of 3-4 times of weight part of mixing material, add polyacrylic acid, polyoxyethylene glycol, stir evenly, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dries at 110-120 DEG C, cross 40 order sieves, obtain particle;
(4) particle (3) step obtained is in nitrogen atmosphere, and hot pressing at 1610-1670 DEG C, hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and naturally cooling, to obtain final product.
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| CN105964985A (en) * | 2016-05-23 | 2016-09-28 | 安徽鑫宏机械有限公司 | Wear-resistant hammer head of potassium titanate whisker-enhanced casting-penetration composite mining crusher and production method thereof |
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Effective date of registration: 20200921 Address after: No.19, Guangming West Road, high tech Zone, Zaozhuang City, Shandong Province Patentee after: ZAOZHUANG KESHUN DIGITAL Co.,Ltd. Address before: 401320 Chongqing city Banan District Yudong Jinzhu Street No. 3 Patentee before: CHONGQING YIZHU MACHINERY MANUFACTURING Co.,Ltd. |
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