CN104446403B - A kind of rare earth cutting tool pottery and preparation method thereof - Google Patents
A kind of rare earth cutting tool pottery and preparation method thereof Download PDFInfo
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Abstract
A kind of rare earth cutting tool pottery, is prepared by the raw materials in: marble 15-25, potassium feldspar 48-55, quartz 10-18, rare earth 5-11, polyether modified silicane 0.3-0.5, kaolin 8-10, cobalt oxide 1-2, manganese oxide 2-4, nickel oxide 1-2, nepheline syenite 4-5, appropriate amount of ethanol, silane coupler kh-550 0.4-0.6, deionized water in right amount, polyacrylic acid 1-1.5, polyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5；The pottery of the present invention with the addition of rare earth, adds toughness and the wearability of pottery, can be used for cutting tool, and heat-resist, the ratio special cermacis low costs such as zirconium oxide, service life is longer；The wear-resistant auxiliary agent of the application of the invention, by increasing capacitance it is possible to increase the wearability of pottery and heat resistance.
Description
Technical field
The present invention relates to ceramic cutting tool material field, particularly relate to a kind of rare earth cutting tool pottery and preparation method thereof.
Background technology
Development along with new technology revolution, it is desirable to improve constantly machining productivity ratio and reduce the development of production cost, particularly Digit Control Machine Tool, it is desirable to develop new-type cutter higher than hard alloy cutter cutting speed, more resistant to mill.The most various high intensity, high rigidity, corrosion-resistant, the wear-resisting and resistant to elevated temperatures new material being difficult to cut are increasing.Estimate according to document, this kind of material oneself account for and process more than the 50% of sum in the world., hard alloy cutter to the difficult processing of wherein many new materials with competent.On the other hand, the most in the world hard alloy yield oneself reach 20000-25 000 t.The substantial amounts of metal of annual consumption, such as W, Co, Ta and Nb etc..The mineral resources of these metals reduce the most day by day, rise in price, by depletion rate, have more than is needed decades a few days ago. and some resource will exhaust.Sintex is exactly to grow up in this context.
Sintex is the most extensive with ceramic applications such as zirconia ceramics, aluminum oxide, aluminium nitride at present, there is high rigidity, high density, high temperature resistant, the features such as diamagneticization, anti-oxidant, corrosion resistance is strong, chemical stability is good, high-wearing feature is good, but these pottery costs are high, also need to study new material further, reducing cost, the performance such as ceramics toughness to be improved, thermal diffusivity, thermal shock resistance, wear resistence, to adapt to the technology requirement of development.
Summary of the invention
It is an object of the invention to provide a kind of rare earth cutting tool pottery and preparation method thereof, the toughness of this pottery and wearability are good, can be used for cutting tool, heat-resist, than special cermacis low costs such as zirconium oxides.
Technical scheme is as follows:
A kind of rare earth cutting tool pottery, it is characterised in that be prepared by the raw materials in: marble 15-25, potassium feldspar 48-55, quartz 10-18, rare earth 5-11, polyether modified silicane 0.3-0.5, kaolin 8-10, cobalt oxide 1-2, manganese oxide 2-4, nickel oxide 1-2, nepheline syenite 4-5, appropriate amount of ethanol, silane coupler kh-550 0.4-0.6, deionized water in right amount, polyacrylic acid 1-1.5, polyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5；
Described wear-resistant auxiliary agent is prepared by the raw materials in: magnesium borate crystal whisker 1.3-1.5, boric acid ester coupler 0.2-0.4, trichloride antimony 0.3-0.5, urea 0.4-0.5, aluminium borate whisker 0.8-1.2, nano micro crystal cellulose 0.2-0.4, Y2Si2O7 whisker 1-2, tin oxide 0.2-0.3, nano-graphite 0.4-0.8,1-2% hydrochloric acid solution is appropriate, water is appropriate；Preparation method is: by trichloride antimony, urea, nano micro crystal cellulose, tin oxide adds in the water of 8-10 weight portion, magnetic agitation 20-25 minute, add magnesium borate crystal whisker, aluminium borate whisker, Y2Si2O7 whisker continues stirring 2-3 hour, add boric acid ester coupler, it is heated to 70-80 DEG C, stirring reaction 20-30 minute, add nano-graphite, stir 20-30 minute, in 120-130 DEG C of oil bath, stirring is to being dried, send into calcining furnace, in nitrogen atmosphere, calcine 50-60 minute at 700-800 DEG C, the 1-2% hydrochloric acid solution adding 2-3 times of weight portion washs 2-3 time, it is washed to neutrality, dry, pulverize, cross 40 mesh sieves, obtain.
The preparation method of described rare earth cutting tool pottery, it is characterised in that comprise the following steps:
(1) by ball milling after kaolin, rare earth mixing, cross 250 mesh sieves, add the water of 4-5 times of weight portion, add silane coupler kh-550 after stirring, be heated to 70-80 DEG C, stir 10-15 minute, add cobalt oxide, manganese oxide, nickel oxide, continue stirring 30-40 minute, be spray-dried, obtain particle, be re-fed in calcining furnace, in nitrogen atmosphere, calcine 40-50 minute at 700-800 DEG C, pulverize, cross 200 mesh sieves, obtain particle；
(2) by marble, potassium feldspar, quartz, nepheline syenite mixing, add the ethanol of 0.8-1 times of weight portion, be milled to below 200 mesh, be dried, obtain particle；
(3) particle first two steps obtained mixes with other residual components, take the deionized water of 3-4 times of weight portion of mixing material, add polyacrylic acid, polyethylene glycol, stir, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dry at 110-120 DEG C, cross 40 mesh sieves, obtain particle；
(4) particle (3rd) step obtained is in nitrogen atmosphere, hot pressing at 1610-1670 DEG C, and hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and cooling, to obtain final product naturally.
Beneficial effects of the present invention
The pottery of the present invention with the addition of rare earth, adds toughness and the wearability of pottery, can be used for cutting tool, and heat-resist, the ratio special cermacis low costs such as zirconium oxide, service life is longer；The wear-resistant auxiliary agent of the application of the invention, by increasing capacitance it is possible to increase the wearability of pottery and heat resistance.
Detailed description of the invention
A kind of rare earth cutting tool pottery, is made up of the raw material of following weight portion (kilogram): marble 20, potassium feldspar 51, quartz 14, rare earth 8, polyether modified silicane 0.4, kaolin 9, cobalt oxide 1.5, manganese oxide 3, nickel oxide 1.5, nepheline syenite 4.5, appropriate amount of ethanol, silane coupler kh-550 0.5, deionized water are appropriate, polyacrylic acid 1.3, polyethylene glycol 1.4, wear-resistant auxiliary agent 4.5；
Described wear-resistant auxiliary agent is made up of the raw material of following weight portion (kilogram): magnesium borate crystal whisker 1.4, boric acid ester coupler 0.3, trichloride antimony 0.4, urea 0.4, aluminium borate whisker 1, nano micro crystal cellulose 0.3, Y2Si2O7 whisker 1.5, tin oxide 0.3, nano-graphite 0.6,1.5% hydrochloric acid solution is appropriate, water is appropriate；Preparation method is: by trichloride antimony, urea, nano micro crystal cellulose, tin oxide adds in the water of 9 weight portions, magnetic agitation 23 minutes, add magnesium borate crystal whisker, aluminium borate whisker, Y2Si2O7 whisker continues stirring 2.5 hours, add boric acid ester coupler, it is heated to 75 DEG C, stirring reaction 25 minutes, add nano-graphite, stir 25 minutes, in 125 DEG C of oil baths, stirring is to being dried, send into calcining furnace, in nitrogen atmosphere, calcine 55 minutes at 750 DEG C, 1.5% hydrochloric acid solution adding 2.5 times of weight portions washs 2.5 times, it is washed to neutrality, dry, pulverize, cross 40 mesh sieves, obtain.
The preparation method of described rare earth cutting tool pottery, comprises the following steps:
(1) by ball milling after kaolin, rare earth mixing, cross 250 mesh sieves, add the water of 4.5 times of weight portions, add silane coupler kh-550 after stirring, be heated to 75 DEG C, stir 13 minutes, add cobalt oxide, manganese oxide, nickel oxide, continue stirring 33 minutes, be spray-dried, obtain particle, be re-fed in calcining furnace, in nitrogen atmosphere, calcine 45 minutes at 750 DEG C, pulverize, cross 200 mesh sieves, obtain particle；
(2) by marble, potassium feldspar, quartz, nepheline syenite mixing, add the ethanol of 0.9 times of weight portion, be milled to below 200 mesh, be dried, obtain particle；
(3) particle first two steps obtained mixes with other residual components, takes the deionized water of 3.5 times of weight portions of mixing material, adds polyacrylic acid, polyethylene glycol, stir, add mixing material, ball milling 1.5 hours, ultrasonic disperse 15 minutes, dry at 115 DEG C, cross 40 mesh sieves, obtain particle；
(4) particle (3rd) step obtained is in nitrogen atmosphere, hot pressing at 1640 DEG C, and hot pressing pressure is 28MPa, and hot pressing time is 45 minutes, and cooling, to obtain final product naturally.
Experimental data:
The Vickers hardness of this embodiment pottery is 87GPa, and bending strength is 1000MPa, and fracture toughness is 10MPa m1/2。
Claims (2)
1. rare earth cutting tool pottery, it is characterised in that be prepared by the raw materials in: marble 15-25, potassium feldspar 48-55, quartz 10-18, rare earth 5-11, polyether modified silicane 0.3-0.5, kaolin 8-10, cobalt oxide 1-2, manganese oxide 2-4, nickel oxide 1-2, nepheline syenite 4-5, appropriate amount of ethanol, silane resin acceptor kh-550 0.4-0.6, deionized water are appropriate, polyacrylic acid 1-1.5, polyethylene glycol 1.2-1.6, wear-resistant auxiliary agent 4-5；
Described wear-resistant auxiliary agent is prepared by the raw materials in: magnesium borate crystal whisker 1.3-1.5, boric acid ester coupler 0.2-0.4, trichloride antimony 0.3-0.5, urea 0.4-0.5, aluminium borate whisker 0.8-1.2, nano micro crystal cellulose 0.2-0.4, Y2Si2O7 whisker 1-2, tin oxide 0.2-0.3, nano-graphite 0.4-0.8,1-2% hydrochloric acid solution is appropriate, water is appropriate；Preparation method is: by trichloride antimony, urea, nano micro crystal cellulose, tin oxide adds in the water of 8-10 weight portion, magnetic agitation 20-25 minute, add magnesium borate crystal whisker, aluminium borate whisker, Y2Si2O7 whisker continues stirring 2-3 hour, add boric acid ester coupler, it is heated to 70-80 DEG C, stirring reaction 20-30 minute, add nano-graphite, stir 20-30 minute, in 120-130 DEG C of oil bath, stirring is to being dried, send into calcining furnace, in nitrogen atmosphere, calcine 50-60 minute at 700-800 DEG C, the 1-2% hydrochloric acid solution adding 2-3 times of weight portion washs 2-3 time, it is washed to neutrality, dry, pulverize, cross 40 mesh sieves, obtain.
The preparation method of rare earth cutting tool pottery the most according to claim 1, it is characterised in that comprise the following steps:
(1) by ball milling after kaolin, rare earth mixing, cross 250 mesh sieves, add the water of 4-5 times of weight portion, add silane resin acceptor kh-550 after stirring, be heated to 70-80 DEG C, stir 10-15 minute, add cobalt oxide, manganese oxide, nickel oxide, continue stirring 30-40 minute, be spray-dried, obtain particle, be re-fed in calcining furnace, in nitrogen atmosphere, calcine 40-50 minute at 700-800 DEG C, pulverize, cross 200 mesh sieves, obtain particle；
(2) by marble, potassium feldspar, quartz, nepheline syenite mixing, add the ethanol of 0.8-1 times of weight portion, be milled to below 200 mesh, be dried, obtain particle；
(3) particle first two steps obtained mixes with polyether modified silicane, wear-resistant auxiliary agent, take the deionized water of 3-4 times of weight portion of mixing material, add polyacrylic acid, polyethylene glycol, stir, add mixing material, ball milling 1-2 hour, ultrasonic disperse 13-17 minute, dry at 110-120 DEG C, cross 40 mesh sieves, obtain particle；
(4) particle (3rd) step obtained is in nitrogen atmosphere, hot pressing at 1610-1670 DEG C, and hot pressing pressure is 25-30MPa, and hot pressing time is 40-50 minute, and cooling, to obtain final product naturally.
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| CN104846253A (en) * | 2015-04-27 | 2015-08-19 | 苏州统明机械有限公司 | Ceramic containing nickel-chromium alloy and preparation method thereof |
| CN105110762A (en) * | 2015-08-03 | 2015-12-02 | 佛山蓝途科技有限公司 | Ceramic cutter material prepared from serpentine tailings and preparation method therefor |
| CN105418054B (en) * | 2015-11-30 | 2018-07-31 | 上海秉丰生物科技有限公司 | A kind of preparation method of special ceramic material |
| CN106077661A (en) * | 2016-06-15 | 2016-11-09 | 苏州洪河金属制品有限公司 | A kind of shredder ultra-thin ceramic Metal Cutting cutter and preparation method thereof |
| CN107602067A (en) * | 2017-09-26 | 2018-01-19 | 湖南湘讯企业管理有限公司 | A kind of wear-resistant special cermacis and preparation method thereof |
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| JPH02133369A (en) * | 1988-11-11 | 1990-05-22 | Mitsubishi Metal Corp | Ceramic cutting tool containing whisker having excellent wear resistance |
| CN103204678B (en) * | 2012-01-16 | 2016-01-20 | 佛山市陶瓷研究所有限公司 | Strong superelevation toughened ceramic cutter of a kind of superelevation and preparation method thereof |
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Effective date of registration: 20190812 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Patentee after: Anhui Eagle Dragon Industrial Design Co., Ltd. Address before: 230051 Taiping Lake Road, Anhui, Hefei, No. 78 Patentee before: HEFEI DAAN PRINTING CO., LTD. |
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Effective date of registration: 20191204 Address after: 239000 Aihua Computer Technology Service Co., Ltd. Dingyuan County, Chuzhou City, Anhui Province Patentee after: Dingyuan County net Meng Agel Ecommerce Ltd Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Patentee before: Anhui Eagle Dragon Industrial Design Co., Ltd. |