CN107474796A - A kind of nitride modified aluminas abrasive material and its production technology - Google Patents
A kind of nitride modified aluminas abrasive material and its production technology Download PDFInfo
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- CN107474796A CN107474796A CN201710624212.0A CN201710624212A CN107474796A CN 107474796 A CN107474796 A CN 107474796A CN 201710624212 A CN201710624212 A CN 201710624212A CN 107474796 A CN107474796 A CN 107474796A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
Abstract
A kind of nitride modified aluminas abrasive material and its production technology, it includes aluminum oxide 90~99%, nitride 0.5~2%, modified oxide 0~9.5%, processing step：S1, raw material mixing：Alumina powder, nitride and modified oxide are mixed；S2, fusing：Feed the mixture into the fusing of electric arc furnaces high temperature；S3, cooling：Poured into after fusing in access package barrel, with conventional chilling, or quick cooling；S4, broken and screening：Material fragmentation after cooled and solidified is sieved into abrasive grain.Beneficial effect of the present invention：Nitride directly is added in corundum smelting, substantially reduces energy consumption；Production cost is low；Grinding performance is significantly improved compared with Brown Alundum and white fused alumina, is suitable as cutting sheet, grinding, louvre blade, sand paper and vitrified bonded grinding wheel.
Description
Technical field
The invention belongs to abrasive art, specially a kind of nitride modified aluminas abrasive material and its production technology.
Background technology
Since artificial abrasive material in 1891, the kind of electro-corundum be mainly Brown Alundum, white fused alumina, single alundum,
Pink fused alumina and fused alumina zirconia, they have obtained commercial application one after another in 20th century, but from after the 1980s, it is few
New electro-corundum invention.Although the production capacity of current Chinese electro-corundum exceedes more than 2 times of world demand, more than 95% all
It is the Brown Alundum and white fused alumina that production technology falls behind, therefore is badly in need of new product and carries out upgrading and transformation.
The alumina abrasive that nitride or nitrogen oxides are modified is when doing refractory material, wellability of the ferrous materials to it
It is very poor, that is the aluminum oxide that nitride or nitrogen oxides are modified meeting non-stick steel iron filings, Ke Yiti in high temperature grinding process
High grinding performance.
United States Patent (USP) US5023212 describes a kind of novel electric melting corundum, mainly by aluminum oxide, oxidation of coal aluminium and nitrogen oxidation
Aluminium heterogeneous material forms, wherein, alumina material forms corundum matrix, oxidation of coal aluminium, aluminum oxynitride and the carbon nitrogen oxygen of crystallite phase
Change aluminium to be uniformly dispersed therein, carbon content is between 0.05-5%, and nitrogen content is between 0.05-5%.The production of the material passes through
Add carbon and spray into nitrogen in alumina melt and obtain, the major defect of the production technology is to cause to consume energy because of nitrogen to be sprayed into
Greatly, as described in its patent Example, about 10,000 degree of electricity of abrasive material energy consumption per ton, and the ton energy consumption of common Brown Alundum and white fused alumina is about
2000-26000 degree electricity.Meanwhile the abrasive material only can just embody preferable grinding performance at elevated pressures, when pressure is relatively low
It is little with common Brown Alundum difference, so purposes is extremely limited.
US2005/0284029A1 describes the aluminum oxide and zirconia that a kind of nitrogen oxides is modified, fused alumina zirconia mill
Material includes more than 50% aluminium oxide-zirconium oxide eutectic structure, and the nitrogen comprising 0.3-3%, more than 75% crystal of zirconium oxide is cube
Phase.But as described in the patent Example, the nitrogen of the abrasive material be by themselves by the Nitration synthesis of metallic aluminium powder and Lai, close
Into complex process, cost of investment is high, while the main component of the abrasive material is fused alumina zirconia, and cost is very high, is only suitable for the weight of high pressure
Duty grinding wheel, for resin bonded abrasives cutting sheet and grinding, coated abrasive tool louvre blade and sand paper application are not suitable for, and can not do
Vitrified bonded grinding wheel.
Above mentioned problem is current in the prior art also without the effective solution of appearance.
The content of the invention
It is an object of the invention to provide a kind of nitride modified aluminas abrasive material and its production technology, by adding 0.5-2%
Nitride reduce electro-corundum abrasive material the mill of electro-corundum abrasive material improved to the adhesiveness of borings in grinding process
Performance is cut, the present invention sprays into nitrogen nitridation with nitride such as aluminium nitride or silicon nitride directly as raw material, substitution traditional handicraft
Method so that energy consumption substantially reduces, while other components added in abrasive material be adapted for doing cutting sheet, mill by controlling
The different grinding tool such as piece, louvre blade, sand paper or vitrified bonded grinding wheel.
To achieve these goals, the technical solution used in the present invention is as follows：
A kind of nitride modified aluminas abrasive material, it includes the raw material of following weight percentage：Aluminum oxide 90~99%, nitridation
Thing 0.5~2%, modified oxide 0~9.5%.
Wherein, the nitride is aluminium nitride or silicon nitride.
Wherein, the modified oxide be titanium dioxide, zirconium oxide, magnesia, rare earth oxide, strontium oxide strontia, barium monoxide,
The composition of one or both of iron oxide, manganese oxide or cobalt oxide etc. any of the above ratio.
A kind of production technology of nitride modified aluminas abrasive material, its processing step are as follows：
S1, raw material mixing：Alumina powder, nitride and modified oxide are mixed；
S2, fusing：Feed the mixture into the fusing of electric arc furnaces high temperature；
S3, cooling：Poured into after fusing in access package barrel or other cooling devices, with conventional chilling, or quick cooling；
S4, broken and screening：Material fragmentation after cooled and solidified is sieved into abrasive grain.
Preferably, in step S1, the nitride is aluminium nitride or silicon nitride.
Preferably, in step S1, the modified oxide be titanium dioxide, zirconium oxide, magnesia, rare earth oxide,
The composition of one or both of strontium oxide strontia, barium monoxide, iron oxide, manganese oxide or cobalt oxide etc. any of the above ratio.
Preferably, in step S4, material after cooled and solidified is according to the screening that is broken of FEPA or ansi standard
The abrasive material of F8-F120, P24-P120 or P120-P600 granularity.
Beneficial effect of the present invention
1st, nitride is directly added in corundum smelting, rather than sprays into nitrogen, energy consumption can be substantially reduced；
2nd, nitride obtains for commercially available purchase, is synthesized without oneself, reduces enormous investment expense；
3rd, corundum matrix is mainly made up of aluminum oxide, rather than expensive aluminium oxide-zirconium oxide eutectic matrix；
4th, aluminum oxide, nitride and modified oxide proportion are scientific and reasonable, the modified effect that can be got well, cost again not
It is high；
5th, production cost is low, and grinding performance is significantly improved compared with Brown Alundum and white fused alumina, is suitable as cutting sheet, grinding, blinds
Piece, sand paper and vitrified bonded grinding wheel.
Brief description of the drawings
Fig. 1 is production technological process of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.In the following detailed description, the side of explanation is only passed through
Formula describes some one exemplary embodiments of the present invention.Associated description is inherently illustrative, rather than for limiting power
The protection domain that profit requires.
Embodiment one（It is 1% to nitrogenize aluminium content）
Raw material weight proportioning of soup processed is：1 part of 98 parts of alumina powder, 1 part of aluminium nitride and titanium dioxide
Above-mentioned raw materials are mixed first, are put into melting in three-phawse arc furnace, after all material fusing, are poured into access package barrel
Or cooled and solidified in other cooling devices, then crushing and screening take out P36 abrasive material into P24-P120 abrasive material, 178 millis are made
The vulcanized paper sanding discs of rice diameter.
By vulcanized paper sanding discs made from the inventive method compared with the conventional art vulcanized paper sanding discs of same specification, grinding performance is big
It is big to improve.
Modified aluminas vulcanized paper sanding discs and traditional use No. 45 carbon steels of the content made from the inventive method for 1% aluminium nitride
With Brown Alundum P36 vulcanized paper sanding discs performance comparision, its grindability improves 48%.
Embodiment two（It is 1.5% to nitrogenize aluminium content）
Raw material weight proportioning of soup processed is：1 part of 97.5 parts of alumina powder, 1.5 parts of aluminium nitride and titanium dioxide
Above-mentioned raw materials are mixed first, are put into melting in three-phawse arc furnace, after all material fusing, are poured into access package barrel
Or cooled and solidified in other cooling devices, then crushing and screening take out P36 abrasive material into P24-P120 abrasive material, 178 millis are made
The vulcanized paper sanding discs of rice diameter.
Modified aluminas vulcanized paper sanding discs and traditional use No. 45 carbon of the content made from the inventive method for 1.5% aluminium nitride
The vulcanized paper sanding discs performance comparision of steel and Brown Alundum P36, its grinding performance improve 63%.
The present invention instead of penetrating nitrogen in traditional processing technology by directly adding nitride in corundum smelting
Link, so as to greatly reduce energy consumption, and the grinding performance of abrasive material produced by the invention have compared to Brown Alundum and white fused alumina it is bright
Aobvious to improve, by adding different modified oxides, abrasive material produced by the present invention can be used as cutting sheet, grinding, louvre blade, sand paper
Or the grinding tool that vitrified bonded grinding wheel etc. is different, rare earth oxide is such as added, is adapted to do cutting sheet, grinding or louvre blade, is added
Chromium oxide is adapted to do vitrified bonded grinding wheel.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
The other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (7)
1. a kind of nitride modified aluminas abrasive material, it is characterised in that it includes the raw material of following weight percentage：Aluminum oxide
90~99%, nitride 0.5~2%, modified oxide 0~9.5%.
2. a kind of nitride modified aluminas abrasive material according to claim 1, it is characterised in that the nitride is nitridation
Aluminium or silicon nitride.
3. a kind of nitride modified aluminas abrasive material according to claim 1, it is characterised in that the modified oxide is
One kind in titanium dioxide, zirconium oxide, magnesia, rare earth oxide, strontium oxide strontia, barium monoxide, iron oxide, manganese oxide or cobalt oxide
Or the composition of two or more arbitrary proportions.
4. a kind of production technology of nitride modified aluminas abrasive material, it is characterised in that its processing step is as follows：
S1, raw material mixing：Alumina powder, nitride and modified oxide are mixed；
S2, fusing：Feed the mixture into the fusing of electric arc furnaces high temperature；
S3, cooling：Poured into after fusing in access package barrel or other cooling devices, with conventional chilling, or quick cooling；
S4, broken and screening：Material fragmentation after cooled and solidified is sieved into abrasive grain.
A kind of 5. production technology of nitride modified aluminas abrasive material according to claim 4, it is characterised in that step S1
In, the nitride is aluminium nitride or silicon nitride.
A kind of 6. production technology of nitride modified aluminas abrasive material according to claim 4, it is characterised in that step S1
In, the modified oxide is titanium dioxide, zirconium oxide, magnesia, rare earth oxide, strontium oxide strontia, barium monoxide, iron oxide, oxygen
Change the composition of one or both of manganese or cobalt oxide any of the above ratio.
A kind of 7. production technology of nitride modified aluminas abrasive material according to claim 4, it is characterised in that step S4
In, it is F8-F120, P24-P120 or P120- that the material after cooled and solidified, which is broken according to FEPA or ansi standard and sieved,
The abrasive material of P600 granularities.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531780A (en) * | 2018-12-25 | 2019-03-29 | 河南联合精密材料股份有限公司 | A kind of strong cutting low-loss whetstone, preparation method and applications |
| CN112917399A (en) * | 2021-03-10 | 2021-06-08 | 河南捷利达超硬制品有限公司 | Ceramic bond and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271237A1 (en) * | 1986-11-20 | 1988-06-15 | Minnesota Mining And Manufacturing Company | Aluminum nitride/aluminum oxynitride/group IV B metal nitride abrasive particles derived from a sol-gel process |
| EP1576069A1 (en) * | 2002-12-23 | 2005-09-21 | Pem Abrasifs-Refractaires | Aluminium and zirconium oxynitride abrasive grains |
| CN101921575A (en) * | 2009-06-16 | 2010-12-22 | 河南富耐克超硬材料有限公司 | Manufacturing method of cubic boron nitride-aluminum oxide polycrystal compounded abrasive |
| CN104293291A (en) * | 2014-01-09 | 2015-01-21 | 河南富耐克超硬材料股份有限公司 | Superhard composite abrasive material and preparation method thereof |
| CN104416491A (en) * | 2013-08-23 | 2015-03-18 | 青岛锋锐达机械磨具有限公司 | Composite cutting abrasive and grinding tool and manufacturing process thereof |
| CN105754379A (en) * | 2016-03-28 | 2016-07-13 | 江南大学 | Surface modification method for aluminum oxide abrasive powder |
-
2017
- 2017-07-27 CN CN201710624212.0A patent/CN107474796B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271237A1 (en) * | 1986-11-20 | 1988-06-15 | Minnesota Mining And Manufacturing Company | Aluminum nitride/aluminum oxynitride/group IV B metal nitride abrasive particles derived from a sol-gel process |
| EP1576069A1 (en) * | 2002-12-23 | 2005-09-21 | Pem Abrasifs-Refractaires | Aluminium and zirconium oxynitride abrasive grains |
| CN101921575A (en) * | 2009-06-16 | 2010-12-22 | 河南富耐克超硬材料有限公司 | Manufacturing method of cubic boron nitride-aluminum oxide polycrystal compounded abrasive |
| CN104416491A (en) * | 2013-08-23 | 2015-03-18 | 青岛锋锐达机械磨具有限公司 | Composite cutting abrasive and grinding tool and manufacturing process thereof |
| CN104293291A (en) * | 2014-01-09 | 2015-01-21 | 河南富耐克超硬材料股份有限公司 | Superhard composite abrasive material and preparation method thereof |
| CN105754379A (en) * | 2016-03-28 | 2016-07-13 | 江南大学 | Surface modification method for aluminum oxide abrasive powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531780A (en) * | 2018-12-25 | 2019-03-29 | 河南联合精密材料股份有限公司 | A kind of strong cutting low-loss whetstone, preparation method and applications |
| CN112917399A (en) * | 2021-03-10 | 2021-06-08 | 河南捷利达超硬制品有限公司 | Ceramic bond and preparation method and application thereof |
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| CN107474796B (en) | 2019-04-23 |
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