CN1063476A - Ceramic drawing die with precise structure and manufacture method thereof - Google Patents
Ceramic drawing die with precise structure and manufacture method thereof Download PDFInfo
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- CN1063476A CN1063476A CN91100335A CN91100335A CN1063476A CN 1063476 A CN1063476 A CN 1063476A CN 91100335 A CN91100335 A CN 91100335A CN 91100335 A CN91100335 A CN 91100335A CN 1063476 A CN1063476 A CN 1063476A
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Abstract
The present invention be a kind of be wortle and the manufacture method thereof that material is made with Zirconia reinforced alumina base fine structure pottery.ZrO in the employed composite ceramic powder
2(t) number of phases＞85%, mean particle size≤0.5 μ m.Composite powder mixes two kinds of forming agents and carries out operations such as uniform mixing, granulation, two-way coldmoulding, pre-burning, sintering, makes wortle.The wear resistance of this wortle, work-ing life and the wire surface smooth finish that is drawn all are better than sintered carbide wire drawing die, and raw material is easy to get, and cost is low.
Description
The present invention relates to a kind of fine structure stupalith product, particularly a kind of is wortle and the manufacture method thereof that material is made with Zirconia reinforced alumina base fine structure pottery.
In the industrial production, be used to draw the wortle of various ferrous metal, non-ferrous metal wire and wire rod at present, mostly make with Wimet; Drawing the following silk material of φ 0.2mm then is to use diamond mould.Sintered carbide wire drawing die is short work-ing life, produces adhesive attraction between nib wall and the wire in the drawing process, influences surface property wiry; And make 15% the cobalt metal of having an appointment in the Wimet of wortle, and belong to rare elements, increased manufacturing cost.Though the diamond mould wear resisting property is good, long service life involves great expense, and cost is too high.
The purpose of this invention is to provide a kind of intensity height, good toughness, wear-resisting and the life-span is long, the silk material surface smoothness height of drawing, and low ceramic drawing die with precise structure and the manufacture method thereof of cost.
The present invention has studied the characteristics of Zirconia reinforced alumina fine structure pottery, adopts this material to make wortle, and its structural shape is identical with the structural shape of existing sintered carbide wire drawing die and diamond wortle mould.Manufacture method is that composite ceramic powder is mixed with forming agent, then batch mixing is carried out granulation, and powder is inserted and carried out coldmoulding in the punching block, through pre-burning, sintering, operation such as come out of the stove, forms mould.
Describe the present invention below in conjunction with embodiment.Raw material is a Zirconia reinforced alumina base composite ceramic powder, and its recipe ratio is:
α-Al
2O
3: ZrO
2(Y
2O
3+ CeO
2)=50～85: 50～15(weight ratio); ZrO
2Stablizer is to adopt Y
2O
3And CeO
2One package stabilizer; ZrO
2In cubic number of phases ZrO
2(t)＞85%; α-Al
2O
3Purity 〉=99.9%; The mean particle size of composite ceramic powder≤0.5 μ m.
Forming agent (1) is a polyoxyethylene glycol.
Forming agent (2) is a paraffin wax, sodium butadiene rubber.
1, batch mixing: Zirconia reinforced alumina base composite powder and forming agent (1) are modulated into slurry and carry out atomization drying, add forming agent (2) again, carry out uniform mixing.Composite ceramic powder can mix with forming agent (2) separately, also can with forming agent (1) and the compound batch mixing of forming agent (2).The content of the forming agent in the batch mixing (1) is 0.5～2%(weight), the content of forming agent (2) is 3～5%(weight).The total content of two kinds of forming agents is within 4～8%.
2, granulation: will dope the composite powder of forming agent, and under the pressure of 100～150Mpa, be pressed into piece in advance, and wipe sieve with 45～60 purpose mesh screens.Can obtain the second particle of better size distribution, to improve loose density and flowability.
3, coldmoulding:, under 80～130Mpa pressure, carry out two-way compacting coldmoulding with the punching block of packing into of the powder after the granulation.The wortle pressed compact surface that suppresses should smooth N/D.Said punching block in this operation is meant according to the made mould of the structural shape of wortle.
4, pre-burning: the wortle pressed compact that suppresses is put into corundum burn boat, send into pre-burning stove, progressively be warmed up to 650 ℃ by room temperature.Compacting unrelieved stress in the pressed compact is faded away, and the organic substance volatilization fully.Heat-up rate is 15～30 ℃/hour.Cooling is come out of the stove then.
5, sintering: the wortle blank after the pre-burning is put into the High Temperature Furnaces Heating Apparatus sintering.The beginning heat-up rate is 100～200 ℃/hour, cross 400 ℃ after heat-up rate be 300～400 ℃/hour, make temperature reach 1650～1700 ℃ of following sintering, be incubated 1～2 hour.The process that begins to heat up should avoid heat-up rate too fast.Less because of the thermal conductivity of pottery, the too fast meeting that heats up causes blank surface and core excessive temperature differentials, produces bigger thermal stresses, causes blank crackle to occur.
6, goods are come out of the stove: the blank behind the sintering has become goods, i.e. ceramic bull block.Treat that furnace temperature reduces to below 200 ℃, just goods can be come out of the stove.
Ceramic drawing die with precise structure provided by the present invention all is better than sintered carbide wire drawing die in its wear resistance and work-ing life.Drawn wire improves the life-span more than 6 times than sintered carbide wire drawing die, draws tungsten filament, molybdenum filament, alloy-steel wire etc. and improves 2～4 times of life-spans.Because pottery has self lubricity and inert, thereby improve the surface smoothness wiry that is drawn, and solved wortle in the drawing process and the adhesion phenomenon between wire.The raw material sources of fine structure pottery are abundant, and low cost of manufacture is in light weight, only is 1/4th of stell(ite) weight.Because the life-span of ceramic bull block is long, reduced the replacing number of times of mould in the drawing process, improved labour productivity.
Claims (7)
1, a kind of ceramic drawing die with precise structure has the structural shape of known wortle, and the structure material that it is characterized in that it is a Zirconia reinforced alumina base fine structure pottery.
2, a kind of method of making ceramic drawing die with precise structure is characterized in that, composite ceramic powder is mixed with forming agent, then batch mixing is carried out granulation, and powder is inserted and carried out coldmoulding in the punching block through pre-burning, sintering, operation such as come out of the stove, and forms goods.
According to the described manufacture method of claim 2, it is characterized in that 3, composite ceramic powder adopts Zirconia reinforced alumina base composite ceramic powder, its proportioning is:
α-Al
2O
3: ZrO
2(Y
2O
3+ CeO
2)=50～85: 50～15(weight ratio); ZrO
2Stablizer is to adopt Y
2O
3And CeO
2One package stabilizer, it is polyoxyethylene glycol that forming agent adopts forming agent (1), forming agent (2) is a paraffin wax, sodium butadiene rubber; Composite ceramic powder ZrO
2Four directions number of phases ZrO
2(t)＞85%; α-Al2O3 purity 〉=99.9%; Mean particle size≤0.5 μ m.
4, according to the described manufacture method of claim 2, it is characterized in that, in the batch mixing process, Zirconia reinforced alumina base composite ceramic powder and forming agent (1) are modulated into slurry and carry out atomization drying, add forming agent (2) again, carry out even batch mixing, also can with forming agent (1) and the compound batch mixing of forming agent (2).The content (weight) of forming agent in the batch mixing (1) is 0.5～2%, and the content of forming agent (2) is 3～5%.The total content of two kinds of forming agents is 4～8%.
According to the described manufacture method of claim 2, it is characterized in that 5, granulation process is that batch mixing is pressed into piece in advance, its pressure is 100～150Mpa, and wipes sieve with 45～60 purpose mesh screens.
According to the described manufacture method of claim 2, it is characterized in that 6, two-way compacting is adopted in coldmoulding, its pressure is 80～130Mpa.
According to the described manufacture method of claim 2, it is characterized in that 7, the pressed compact pre-burning is progressively to be warming up to 650 ℃ by room temperature, heat-up rate is 15～30 ℃/hour.The pressed compact sintering temperature is 1650～1700 ℃, and heat-up rate is 100～200 ℃/hour before 400 ℃, is 300～800 ℃/hour after 400 ℃, is incubated 1～2 hour after reaching sintering temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100335A CN1045946C (en) | 1991-01-24 | 1991-01-24 | Ceramic drawing die with precise structure and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100335A CN1045946C (en) | 1991-01-24 | 1991-01-24 | Ceramic drawing die with precise structure and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1063476A true CN1063476A (en) | 1992-08-12 |
| CN1045946C CN1045946C (en) | 1999-10-27 |
Family
ID=4904565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91100335A Expired - Fee Related CN1045946C (en) | 1991-01-24 | 1991-01-24 | Ceramic drawing die with precise structure and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045946C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289313B (en) * | 2008-05-29 | 2010-09-08 | 大连理工大学 | Method for preparing aluminum oxide based nano complex phase ceramic bull block |
| CN103586296A (en) * | 2013-10-23 | 2014-02-19 | 大连理工大学 | Mosaic ceramic drawing die and making method thereof |
| CN104307901A (en) * | 2014-10-30 | 2015-01-28 | 苏州广型模具有限公司 | Machining method of die core material of wire-drawing die |
| CN106518026A (en) * | 2016-10-08 | 2017-03-22 | 常州创索新材料科技有限公司 | Method for preparing ceramic drawing die material |
| CN108975886A (en) * | 2018-09-25 | 2018-12-11 | 鲁东大学 | A kind of micro- texture self-lubricating wire drawing die based on 3D printing technique |
| CN109133885A (en) * | 2018-09-18 | 2019-01-04 | 广东蓝狮医疗科技有限公司 | A kind of preparation method of Zinc oxide doped antibacterial artificial hip joint ceramics bulb |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4666467A (en) * | 1984-04-06 | 1987-05-19 | Toyo Soda Manufacturing Co., Ltd. | High-strength metal working tool made of a zirconia-type sintered material |
| JPS6270041A (en) * | 1985-09-25 | 1987-03-31 | 三菱重工業株式会社 | Manufacture of compounded ceramics |
| JPS62114718A (en) * | 1985-11-14 | 1987-05-26 | Hitachi Metals Ltd | Die for wire drawing |
| JPS6395154A (en) * | 1986-10-08 | 1988-04-26 | 日立金属株式会社 | Squeeze mold |
| JP2533863B2 (en) * | 1986-10-08 | 1996-09-11 | 日立金属株式会社 | Dies for powder press molding |
-
1991
- 1991-01-24 CN CN91100335A patent/CN1045946C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289313B (en) * | 2008-05-29 | 2010-09-08 | 大连理工大学 | Method for preparing aluminum oxide based nano complex phase ceramic bull block |
| CN103586296A (en) * | 2013-10-23 | 2014-02-19 | 大连理工大学 | Mosaic ceramic drawing die and making method thereof |
| CN103586296B (en) * | 2013-10-23 | 2017-01-11 | 大连理工大学 | Mosaic ceramic drawing die and making method thereof |
| CN104307901A (en) * | 2014-10-30 | 2015-01-28 | 苏州广型模具有限公司 | Machining method of die core material of wire-drawing die |
| CN106518026A (en) * | 2016-10-08 | 2017-03-22 | 常州创索新材料科技有限公司 | Method for preparing ceramic drawing die material |
| CN109133885A (en) * | 2018-09-18 | 2019-01-04 | 广东蓝狮医疗科技有限公司 | A kind of preparation method of Zinc oxide doped antibacterial artificial hip joint ceramics bulb |
| CN108975886A (en) * | 2018-09-25 | 2018-12-11 | 鲁东大学 | A kind of micro- texture self-lubricating wire drawing die based on 3D printing technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045946C (en) | 1999-10-27 |
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Free format text: CORRECT: PATENTEE; FROM: HEFEI UNIVERSITY OF TECHNOLOGY TO: XINKE NEW MATERIAL STOCK CO., LTD. |
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Address after: 241010 Wuhu economic and Technological Development Zone, Anhui, Zhujianglu Road Patentee after: Anhui Xinke New Material Co., Ltd. Address before: 230010 Tunxi Road, Anhui, Hefei Patentee before: Hefei University of Technology |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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