CN102350727A - Silicon carbide ceramic millstone and preparation method - Google Patents
Silicon carbide ceramic millstone and preparation method Download PDFInfo
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- CN102350727A CN102350727A CN2011101681533A CN201110168153A CN102350727A CN 102350727 A CN102350727 A CN 102350727A CN 2011101681533 A CN2011101681533 A CN 2011101681533A CN 201110168153 A CN201110168153 A CN 201110168153A CN 102350727 A CN102350727 A CN 102350727A
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Abstract
The invention provides a silicon carbide ceramic millstone and a preparation method. The silicon carbide ceramic millstone is characterized by comprising a ceramic circular ring (A) with a certain wall thickness, grooves formed by alternate bulges (15) and sags (16) are distributed on one surface of the ceramic circular ring (A), and eight through-holes (17) with the same specification are alternately and evenly distributed along the inner side and the outer side of the ceramic circular ring. The preparation method comprises the steps of raw material preparation, pressing, firing and processing, and is characterized in that phenolic resin is evenly mixed with silicon carbide powder with the granularity of 0.1 to 3mum at the ratio of 1:3 to 5; after a mixture is solidified at a temperature of 40 DEG C to 100 DEG C, granulated powder (14) with the granularity of 50 to 200mu m is prepared and is then evenly loaded into a special mould; under the pressure of 50 to 300Mpa, isostatic pressing is conducted and the pressure is maintained for 10 to 30 minutes; then the granulated powder is demoulded and a green body of the silicon carbide ceramic millstone is manufactured; and after the firing and cold working, the silicon carbide ceramic millstone is manufactured. The silicon carbide ceramic millstone has the advantages of high strength, high toughness, excellent wear-resisting property and long service life, and is suitable for industrialized large scale production.
Description
Technical field
The present invention relates to a kind of silicon carbide ceramics mill and preparation method, belong to the structural ceramics preparing technical field.
Background technology
Ceramic millstone normally adopts injection forming; Or be pressed into fan-shaped fritter porcelain base through burning till, process, be combined into then ceramic millstone, and the ceramic millstone of producing at present is owing to the restriction of technology, and the ceramic millstone intensity of production is low, toughness is low, poor flatness; Production cost is high, and service life is short.
Summary of the invention
The object of the present invention is to provide a kind of silicon carbide ceramics mill and preparation method that can overcome above-mentioned defective, adapt to condition of work wide ranges, function admirable.Its technical scheme is:
Include the ceramic annulus (A) of certain wall thickness, on a face of ceramic annulus (A), distributing protruding (15) and depression (16) alternate groove, along the ceramic annulus outside and in the through hole (17) of eight same sizes of alternate even distribution.
The preparation method of described silicon carbide ceramics mill; With phenolic resins and granularity is that the silicon carbide powder of 0.1～3 μ m evenly mixes in 1: 3～5 ratio, under 40 ℃～100 ℃ temperature, solidifies, and is prepared into 50～200 μ m granulation powders (14); Evenly pack into then in the special mould; Be isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa. at pressure, silicon carbide ceramics mill base substrate is processed in the demoulding then, fires at 1500～2000 ℃ * 2～4 hours nitrogen atmospheres; Through cold working, process the silicon carbide ceramics mill.
The preparation method of described silicon carbide ceramics mill; Special mould comprises cope match-plate pattern (1), cope match-plate pattern rubber blanket (2), middle mould cylinder (3), middle mould rubber cylinder (4), lower bolster rubber blanket (5), lower bolster (6), main core tube (7), main mould jig (8), main core tube jig (9), main core tube rubber tube (10), auxilliary core tube (11), auxilliary core tube jig (12) and auxilliary core tube rubber tube (13), wherein cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) process by the thick stainless steel of 0.5～3mm and on the space of a whole page or periphery, to be uniformly distributed with many diameters be the 2mm through hole.
The preparation method of described silicon carbide ceramics mill; Earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again and be sleeved on the auxilliary core tube (11), the relevant position that the main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1) is with main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing; Again with middle mould cylinder (3) liner rubber tube (4) and fixing with cope match-plate pattern (1); The granulation powder (14) of packing into then, in again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing, put into the isostatic compaction machine; Hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery; Pressure is acted on granulation powder (14) through rubber blanket or rubber tube, compression moulding, silicon carbide ceramics mill base substrate is processed in the demoulding then.
The present invention compared with prior art, its advantage is:
1, the present invention produces silicon carbide ceramics mill uniform microstructure, and intensity is high, and global reliability is high, adapts to characteristics such as condition of work wide ranges;
2, because this method has adopted whole isostatic compaction, make that silicon carbide ceramics mill overall structure is even, appearance and size is accurate, long service life.
Description of drawings
Fig. 1 is the structural representation of silicon carbide ceramics mill embodiment, and wherein, figure (A) is a silicon carbide ceramics mill front view, and figure (B) is a silicon carbide ceramics mill vertical view, and figure (C) is a silicon carbide ceramics mill partial enlarged drawing;
Fig. 2 is the mould structure sketch map of silicon carbide ceramics mill embodiment, and wherein, figure (D) is a silicon carbide ceramics mill mould partial enlarged drawing.
Among the figure: 1, cope match-plate pattern, 2, cope match-plate pattern rubber blanket, 3, middle mould cylinder, 4, middle mould rubber cylinder, 5, lower bolster rubber blanket, 6, lower bolster, 7, main core tube, 8, main mould jig, 9, main core tube jig, 10, main core tube rubber tube, 11, auxilliary core tube, 12, auxilliary core tube jig, 13, auxilliary core tube rubber tube, 14, granulation powder, 15 convexities, 16 depressions, 17, through hole.
The specific embodiment
In the embodiment shown in Fig. 1-2: the silicon carbide ceramics mill includes the ceramic annulus (A) of certain wall thickness; On a face of ceramic annulus (A), distributing protruding (15) and depression (16) alternate groove, along the ceramic annulus outside and in the through hole (17) of eight same sizes of alternate even distribution.Earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again is sleeved on the auxilliary core tube (11); The relevant position that main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1); With main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing, again with middle mould cylinder (3) liner rubber tube (4) and fixing, the granulation powder (14) of packing into then with cope match-plate pattern (1); In again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing; Put into the isostatic compaction machine, hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery, pressure is acted on granulation powder (14) through rubber blanket or rubber tube; Compression moulding, silicon carbide ceramics mill base substrate is processed in the demoulding then.
Embodiment 1
1, feedstock production
With phenolic resins and granularity is that the silicon carbide powder of 0.1 μ m evenly mixes in 1: 3 ratio, under 40 ℃ temperature, solidifies, and is prepared into 50 μ m granulation powders (14).
2, compression moulding
Earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again is sleeved on the auxilliary core tube (11); The relevant position that main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1); With main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing, again with middle mould cylinder (3) liner rubber tube (4) and fixing, the granulation powder (14) of packing into then with cope match-plate pattern (1); In again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing; Put into the isostatic compaction machine, hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery, pressure is acted on granulation powder (14) through rubber blanket or rubber tube; The forming under the pressure of 50Mpa and pressurize 10 minutes, silicon carbide ceramics mill base substrate was processed in the demoulding then.
3, burn till
Silicon carbide ceramics mill base substrate is fired at 1500 ℃ * 4 hours nitrogen atmospheres, processed silicon carbide ceramics mill blank.
4, the fine finishining of silicon carbide ceramics mill blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
With phenolic resins and granularity is that the silicon carbide powder of 1.5 μ m evenly mixes in 1: 4 ratio, under 70 ℃ temperature, solidifies, and is prepared into 130 μ m granulation powders (14).
2, compression moulding
Earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again is sleeved on the auxilliary core tube (11); The relevant position that main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1); With main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing, again with middle mould cylinder (3) liner rubber tube (4) and fixing, the stabilized with yttrium oxide carborundum mist projection granulating powder (14) of packing into then with cope match-plate pattern (1); In again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing; Put into the isostatic compaction machine, hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery, pressure is acted on stabilized with yttrium oxide carborundum mist projection granulating powder (14) through rubber blanket or rubber tube; The forming under the pressure of 200Mpa and pressurize 10 minutes, silicon carbide ceramics mill base substrate was processed in the demoulding then.
3, burn till
Silicon carbide ceramics mill base substrate after solidifying is fired at 1750 ℃ * 3 hours nitrogen atmospheres, processed silicon carbide ceramics mill blank.
4, the fine finishining of silicon carbide ceramics mill blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
1, feedstock production
With phenolic resins and granularity is that the silicon carbide powder of 3 μ m evenly mixes in 1: 5 ratio, under 100 ℃ temperature, solidifies, and is prepared into 200 μ m granulation powders (14).
2, compression moulding
Earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again is sleeved on the auxilliary core tube (11); The relevant position that main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1); With main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing, again with middle mould cylinder (3) liner rubber tube (4) and fixing, the stabilized with yttrium oxide carborundum mist projection granulating powder (14) of packing into then with cope match-plate pattern (1); In again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing; Put into the isostatic compaction machine, hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery, pressure is acted on stabilized with yttrium oxide carborundum mist projection granulating powder (14) through rubber blanket or rubber tube; The forming under the pressure of 300Mpa and pressurize 10 minutes, silicon carbide ceramics mill base substrate was processed in the demoulding then.
3, burn till
Silicon carbide ceramics mill base substrate is fired at 2000 ℃ * 2 hours nitrogen atmospheres, processed silicon carbide ceramics mill blank.
4, the fine finishining of silicon carbide ceramics mill blank is met the requirements of precise measure.
The purity of testing used proportion material is technical pure.
Claims (4)
1. the preparation method of a silicon carbide ceramics mill; It is characterized in that: the ceramic annulus (A) that includes certain wall thickness; On a face of ceramic annulus (A), distributing protruding (15) and depression (16) alternate groove, along the ceramic annulus outside and in the through hole (17) of eight same sizes of alternate even distribution.
2. the preparation method of silicon carbide ceramics mill according to claim 1 comprises feedstock production, suppresses, burns till, processes, and it is characterized in that: with phenolic resins and granularity is that the silicon carbide powder of 0.1～3 μ m evenly mixes in 1: 3～5 ratio; Under 40 ℃～100 ℃ temperature, solidify; Being prepared into 50～200 μ m granulation powders (14), in the special mould of evenly packing into then, is isostatic compaction and pressurize 10～30 minutes under the pressure of 50～300Mpa. at pressure; Silicon carbide ceramics mill base substrate is processed in the demoulding then; Fire at 1500～2000 ℃ * 2～4 hours nitrogen atmospheres,, process the silicon carbide ceramics mill through cold working.
3. according to the preparation method of claim 1,2 described silicon carbide ceramics mills; It is characterized in that: special mould comprises cope match-plate pattern (1), cope match-plate pattern rubber blanket (2), middle mould cylinder (3), middle mould rubber cylinder (4), lower bolster rubber blanket (5), lower bolster (6), main core tube (7), main mould jig (8), main core tube jig (9), main core tube rubber tube (10), auxilliary core tube (11), auxilliary core tube jig (12) and auxilliary core tube rubber tube (13), wherein cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) process by the thick stainless steel of 0.5～3mm and on the space of a whole page or periphery, to be uniformly distributed with many diameters be the 2mm through hole.
4. according to the preparation method of claim 1,2,3 described silicon carbide ceramics mills; It is characterized in that: earlier cope match-plate pattern rubber blanket (2) is installed on the cope match-plate pattern (1) during compacting; Main core tube rubber tube (10) is sleeved on the main core tube (7); To assist core tube rubber tube (13) again and be sleeved on the auxilliary core tube (11), the relevant position that the main core tube (7) that then cover is installed and auxilliary core tube (11) are sleeved on cope match-plate pattern (1) is with main core tube jig (9) and auxilliary core tube jig (12) and cope match-plate pattern (1) positioning and fixing; Again with middle mould cylinder (3) liner rubber tube (4) and fixing with cope match-plate pattern (1); The granulation powder (14) of packing into then, in again lower bolster rubber blanket (5) and lower bolster (6) being sleeved on the other end of mould cylinder (3) liner rubber tube (4) with main mould jig (8), main core tube jig (9) and auxilliary core tube jig (12) locate, sealing and fixing, put into the isostatic compaction machine; Hydraulic oil is uniformly distributed with many through holes on the space of a whole page of cope match-plate pattern (1), middle mould cylinder (3), lower bolster (6), main core tube (7) and auxilliary core tube (11) or periphery; Pressure is acted on granulation powder (14) through rubber blanket or rubber tube, compression moulding, silicon carbide ceramics mill base substrate is processed in the demoulding then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110168153 CN102350727B (en) | 2011-08-25 | 2011-08-25 | Preparation method of silicon carbide ceramic millstone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110168153 CN102350727B (en) | 2011-08-25 | 2011-08-25 | Preparation method of silicon carbide ceramic millstone |
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| CN102350727A true CN102350727A (en) | 2012-02-15 |
| CN102350727B CN102350727B (en) | 2013-08-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140383A (en) * | 2015-07-02 | 2016-11-23 | 宁夏佳晶科技有限公司 | A kind of reworked material reducing mechanism for sapphire kyropoulos and breaking method thereof |
| CN112169911A (en) * | 2019-07-03 | 2021-01-05 | 上海谷励智能设备有限公司 | Alpha infrared heating mill |
| CN113021573A (en) * | 2021-03-12 | 2021-06-25 | 陈敬 | Silicon carbide sealing washer apparatus for producing of clout can fully be collected |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2553956Y (en) * | 2002-08-05 | 2003-06-04 | 吴为华 | Grinding head structure for polishing ceramic concave-convex surface |
| CN1843735A (en) * | 2006-04-12 | 2006-10-11 | 李志林 | Process for making ceramic brick with tenuous concave-convex pattern |
| US20070037501A1 (en) * | 2005-08-11 | 2007-02-15 | Saint-Gobain Abrasives, Inc. | Abrasive tool |
-
2011
- 2011-08-25 CN CN 201110168153 patent/CN102350727B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2553956Y (en) * | 2002-08-05 | 2003-06-04 | 吴为华 | Grinding head structure for polishing ceramic concave-convex surface |
| US20070037501A1 (en) * | 2005-08-11 | 2007-02-15 | Saint-Gobain Abrasives, Inc. | Abrasive tool |
| CN1843735A (en) * | 2006-04-12 | 2006-10-11 | 李志林 | Process for making ceramic brick with tenuous concave-convex pattern |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140383A (en) * | 2015-07-02 | 2016-11-23 | 宁夏佳晶科技有限公司 | A kind of reworked material reducing mechanism for sapphire kyropoulos and breaking method thereof |
| CN112169911A (en) * | 2019-07-03 | 2021-01-05 | 上海谷励智能设备有限公司 | Alpha infrared heating mill |
| CN113021573A (en) * | 2021-03-12 | 2021-06-25 | 陈敬 | Silicon carbide sealing washer apparatus for producing of clout can fully be collected |
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| CN102350727B (en) | 2013-08-21 |
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