CN103465186A - Vitrified bonded grinding wheel manufacturing method - Google Patents
Vitrified bonded grinding wheel manufacturing method Download PDFInfo
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- CN103465186A CN103465186A CN2013104182042A CN201310418204A CN103465186A CN 103465186 A CN103465186 A CN 103465186A CN 2013104182042 A CN2013104182042 A CN 2013104182042A CN 201310418204 A CN201310418204 A CN 201310418204A CN 103465186 A CN103465186 A CN 103465186A
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Abstract
The invention discloses a vitrified bonded grinding wheel manufacturing method. The method includes the steps: 1) preparing a vitrified bond; 2) taking, by weight, 10-12 parts of the vitrified bond, 2-3 parts of yellow dextrin and 3-5 parts of sodium silicate to be mixed, adding the mixture into a ball mill for ball milling for 1 hour, enabling weight ratio of pellets in the ball mill to be 5:1, and discharging prior to sieving to obtain formed balls; pressing a grinding wheel blank through the formed materials, and naturally drying the grinding wheel blank for 2-3 days; 4) placing the naturally-dried grinding wheel blank into a drying room for drying, drying at the temperature of 30-40 DEG C for 48 hours, then drying at the temperature of 40-60 DEG C for 48 hours prior to drying at the temperature of 60-70 DEG C for 48 hours, and finally naturally cooling to the temperature of 35-40 DEG C; sintering the grinding wheel bland dried in the drying room to obtain a vitrified bonded grinding wheel. The vitrified bonded grinding wheel manufacturing method is capable of effectively enhancing strength of the grinding wheel.
Description
Technical field
The present invention relates to the manufacture method of vitrified bonded grinding wheel.
Background technology
In order to improve working (machining) efficiency, the intensity of emery wheel is also proposed to more and more higher requirement due to machinery industry.
At present large specification emery wheel, fabrication yield is low, when it runs up, often there will be degradation problem under crackle, intensity, and main cause is: the liquid phase that (1) vitrified bond forms when high temperature burns till is inadequate, affects wheel strength; (2) large specification is because diameter is large, and the temperature difference be subject in kiln is also corresponding large, comprises the temperature difference of emery wheel surrounding in the middle of this, also comprises the temperature difference that emery wheel is inside and outside, and the temperature difference finally can form stress in emery wheel, causes wheel strength to reduce; (3) coefficient of expansion of abrasive material and bond is mismatched; (4) dry problem, the emery wheel of large specification, need to be than the better drying condition of plain wheel because volume is large.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of vitrified bonded grinding wheel, can effectively improve the intensity of emery wheel.
For achieving the above object, technical scheme of the present invention is the manufacture method of a kind of vitrified bonded grinding wheel of design, comprises the steps:
1) prepare vitrified bond: get 2～3 mass parts lithias, 33～36 mass parts feldspar powders, 41～44 mass parts clays, 33～35 mass parts high boron glasses and put into mixing tank and mix 2 hours, after mixing, sieve and obtain vitrified bond;
2) get 10～12 mass parts vitrified bonds, 2～3 mass parts yellow starch gums, 3～5 mass parts sodium metasilicate mixing, add in ball mill and carry out ball milling; In ball mill, the pellet weight ratio is 5:1, and Ball-milling Time 1 hour, sieve after discharging and obtain molding mass;
3) molding mass compacting emery wheel blank, and natural drying 2～3 days;
4) the emery wheel blank after natural drying is put into drying room and is carried out drying, and first 30～40 ℃ of dryings are 48 hours, then 40～60 ℃ of dryings 48 hours, then 60～70 ℃ of dryings 48 hours, finally naturally is cooled to 35～40 ℃;
5) the dried emery wheel blank of drying room burns till to obtain vitrified bonded grinding wheel; Burning till heating curve is: directly be warming up to 50 ℃, be warming up to 145 ℃ with 25 ℃/h again, then be warming up to 250 ℃ with 20 ℃/h, then be warming up to 420 ℃ with 30 ℃/h, be warming up to 680 ℃ with 25 ℃/h again, be warming up to 900 ℃ with 30 ℃/h again, then be warming up to 1050 ℃ with 15 ℃/h, then be warming up to 1200 ℃ with 15 ℃/h, be warming up to 1250 ℃ with 10 ℃/h again, be incubated again 10 hours, then with 100 ℃/h, be cooled to 900 ℃, finally carry out the nature cooling.
Advantage of the present invention and beneficial effect are: a kind of manufacture method of vitrified bonded grinding wheel is provided, can effectively improves the intensity of emery wheel.
Lithia is as urging flux to impel vitrified bond to form glassy phase, thus the raising wheel strength.
By improving the drying condition of emery wheel, improvement is burnt till heating curve and is improved the stability while burning till, and then guarantees intensity and the product qualified rate of emery wheel.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention more clearly is described, and can not limit the scope of the invention with this.
The concrete technical scheme of implementing of the present invention is:
Embodiment 1
A kind of manufacture method of vitrified bonded grinding wheel, comprise the steps:
1) prepare vitrified bond: get 2 mass parts lithias, 33 mass parts feldspar powders, 41 mass parts clays, 33 mass parts high boron glasses and put into mixing tank and mix 2 hours, after mixing, sieve and obtain vitrified bond;
2) get 10 mass parts vitrified bonds, 2 mass parts yellow starch gums, 3 mass parts sodium metasilicate mixing, add in ball mill and carry out ball milling; In ball mill, the pellet weight ratio is 5:1, and Ball-milling Time 1 hour, sieve after discharging and obtain molding mass;
3) molding mass compacting emery wheel blank, and natural drying 2 days;
4) the emery wheel blank after natural drying is put into drying room and is carried out drying, and first 30 ℃ of dryings are 48 hours, then 40 ℃ of ℃ of dryings 48 hours, then 60 ℃ of dryings 48 hours, finally naturally is cooled to 35 ℃:
5) the dried emery wheel blank of drying room burns till to obtain vitrified bonded grinding wheel; Burning till heating curve is: directly be warming up to 50 ℃, be warming up to 145 ℃ with 25 ℃/h again, then be warming up to 250 ℃ with 20 ℃/h, then be warming up to 420 ℃ with 30 ℃/h, be warming up to 680 ℃ with 25 ℃/h again, be warming up to 900 ℃ with 30 ℃/h again, then be warming up to 1050 ℃ with 15 ℃/h, then be warming up to 1200 ℃ with 15 ℃/h, be warming up to 1250 ℃ with 10 ℃/h again, be incubated again 10 hours, then with 100 ℃/h, be cooled to 900 ℃, finally carry out the nature cooling.
The emery wheel of the present embodiment is compared with the emery wheel that existing technique is produced, and intensity can improve 15%.
Embodiment 2
A kind of manufacture method of vitrified bonded grinding wheel, comprise the steps:
1) prepare vitrified bond: get 2.5 mass parts lithias, 35 mass parts feldspar powders, 43 mass parts clays, 34 mass parts high boron glasses and put into mixing tank and mix 2 hours, after mixing, sieve and obtain vitrified bond;
2) get 11 mass parts vitrified bonds, 2.5 mass parts yellow starch gums, 4 mass parts sodium metasilicate mixing, add in ball mill and carry out ball milling; In ball mill, the pellet weight ratio is 5:1, and Ball-milling Time 1 hour, sieve after discharging and obtain molding mass;
3) molding mass compacting emery wheel blank, and natural drying 2.5 days;
4) the emery wheel blank after natural drying is put into drying room and is carried out drying, and first 35 ℃ of dryings are 48 hours, then 50 ℃ of dryings 48 hours, then 65 ℃ of dryings 48 hours, finally naturally is cooled to 37 ℃;
5) the dried emery wheel blank of drying room burns till to obtain vitrified bonded grinding wheel; Burning till heating curve is: directly be warming up to 50 ℃, be warming up to 145 ℃ with 25 ℃/h again, then be warming up to 250 ℃ with 20 ℃/h, then be warming up to 420 ℃ with 30 ℃/h, be warming up to 680 ℃ with 25 ℃/h again, be warming up to 900 ℃ with 30 ℃/h again, then be warming up to 1050 ℃ with 15 ℃/h, then be warming up to 1200 ℃ with 15 ℃/h, be warming up to 1250 ℃ with 10 ℃/h again, be incubated again 10 hours, then with 100 ℃/h, be cooled to 900 ℃, finally carry out the nature cooling.
The emery wheel of the present embodiment is compared with the emery wheel that existing technique is produced, and intensity can improve 18%.
Embodiment 3
A kind of manufacture method of vitrified bonded grinding wheel, comprise the steps:
1) prepare vitrified bond: get 3 mass parts lithias, 36 mass parts feldspar powders, 44 mass parts clays, 35 mass parts high boron glasses and put into mixing tank and mix 2 hours, after mixing, sieve and obtain vitrified bond;
2) get 12 mass parts vitrified bonds, 3 mass parts yellow starch gums, 5 mass parts sodium metasilicate mixing, add in ball mill and carry out ball milling; In ball mill, the pellet weight ratio is 5:1, and Ball-milling Time 1 hour, sieve after discharging and obtain molding mass;
3) molding mass compacting emery wheel blank, and natural drying 3 days;
4) the emery wheel blank after natural drying is put into drying room and is carried out drying, and first 40 ℃ of dryings are 48 hours, then 460 ℃ of dryings 48 hours, then 70 ℃ of dryings 48 hours, finally naturally is cooled to 40 ℃;
5) the dried emery wheel blank of drying room burns till to obtain vitrified bonded grinding wheel; Burning till heating curve is: directly be warming up to 50 ℃, be warming up to 145 ℃ with 25 ℃/h again, then be warming up to 250 ℃ with 20 ℃/h, then be warming up to 420 ℃ with 30 ℃/h, be warming up to 680 ℃ with 25 ℃/h again, be warming up to 900 ℃ with 30 ℃/h again, then be warming up to 1050 ℃ with 15 ℃/h, then be warming up to 1200 ℃ with 15 ℃/h, be warming up to 1250 ℃ with 10 ℃/h again, be incubated again 10 hours, then with 100 ℃/h, be cooled to 900 ℃, finally carry out the nature cooling.
The emery wheel of the present embodiment is compared with the emery wheel that existing technique is produced, and intensity can improve 20%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the manufacture method of vitrified bonded grinding wheel, is characterized in that, comprises the steps:
1) prepare vitrified bond: get 2～3 mass parts lithias, 33～36 mass parts feldspar powders, 41～44 mass parts clays, 33～35 mass parts high boron glasses and put into mixing tank and mix 2 hours, after mixing, sieve and obtain vitrified bond;
2) get 10～12 mass parts vitrified bonds, 2～3 mass parts yellow starch gums, 3～5 mass parts sodium metasilicate mixing, add in ball mill and carry out ball milling; In ball mill, the pellet weight ratio is 5:1, and Ball-milling Time 1 hour, sieve after discharging and obtain molding mass;
3) molding mass compacting emery wheel blank, and natural drying 2～3 days;
4) the emery wheel blank after natural drying is put into drying room and is carried out drying, and first 30～40 ℃ of dryings are 48 hours, then 40～60 ℃ of dryings 48 hours, then 60～70 ℃ of dryings 48 hours, finally naturally is cooled to 35～40 ℃;
5) the dried emery wheel blank of drying room burns till to obtain vitrified bonded grinding wheel; Burning till heating curve is: directly be warming up to 50 ℃, be warming up to 145 ℃ with 25 ℃/h again, then be warming up to 250 ℃ with 20 ℃/h, then be warming up to 420 ℃ with 30 ℃/h, be warming up to 680 ℃ with 25 ℃/h again, be warming up to 900 ℃ with 30 ℃/h again, then be warming up to 1050 ℃ with 15 ℃/h, then be warming up to 1200 ℃ with 15 ℃/h, be warming up to 1250 ℃ with 10 ℃/h again, be incubated again 10 hours, then with 100 ℃/h, be cooled to 900 ℃, finally carry out the nature cooling.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191381A (en) * | 2014-09-22 | 2014-12-10 | 苏州远东砂轮有限公司 | High-strength low-melting-point ceramic abrasive tool bonding agent and preparation method thereof |
| CN104315830A (en) * | 2014-11-05 | 2015-01-28 | 江苏苏北砂轮厂有限公司 | Drying method for grinding steel ball grinding wheel |
| CN105619266A (en) * | 2015-12-23 | 2016-06-01 | 郑州磨料磨具磨削研究所有限公司 | Low-temperature sintering ceramic binding agent, grinding wheel and preparation method thereof |
| CN107421239A (en) * | 2017-07-20 | 2017-12-01 | 江苏苏北砂轮厂有限公司 | Major diameter pink fused alumina emery wheel drying means |
| CN111002239A (en) * | 2019-11-22 | 2020-04-14 | 辽宁程瑞砂轮有限公司 | Method for manufacturing ceramic bond large-diameter grinding wheel |
| CN112662869A (en) * | 2020-12-16 | 2021-04-16 | 郑州银泰冶金材料有限公司 | Bonding agent for ball pressing type refining agent, preparation method of bonding agent and ball pressing type refining agent |
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| CN101870091A (en) * | 2010-06-17 | 2010-10-27 | 大连理工大学 | Method for preparing ultra-fine diamond grinding wheel of vitrified bond |
| CN102976725A (en) * | 2012-11-27 | 2013-03-20 | 江苏苏北砂轮厂有限公司 | Ceramic bond |
| CN103029048A (en) * | 2012-12-24 | 2013-04-10 | 常熟市巨力砂轮有限责任公司 | Manufacturing method of large-sized ceramic high-speed grinding wheel |
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| US10307A (en) * | 1853-12-13 | Bit-stock of braces | ||
| US4920704A (en) * | 1987-07-23 | 1990-05-01 | Red Hill Grinding Wheel Corporation | Grinding wheel containing dissolvable granular material |
| CN1613609A (en) * | 2003-11-03 | 2005-05-11 | 郑洪典 | Sintering formula and process for sand wheel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191381A (en) * | 2014-09-22 | 2014-12-10 | 苏州远东砂轮有限公司 | High-strength low-melting-point ceramic abrasive tool bonding agent and preparation method thereof |
| CN104315830A (en) * | 2014-11-05 | 2015-01-28 | 江苏苏北砂轮厂有限公司 | Drying method for grinding steel ball grinding wheel |
| CN105619266A (en) * | 2015-12-23 | 2016-06-01 | 郑州磨料磨具磨削研究所有限公司 | Low-temperature sintering ceramic binding agent, grinding wheel and preparation method thereof |
| CN107421239A (en) * | 2017-07-20 | 2017-12-01 | 江苏苏北砂轮厂有限公司 | Major diameter pink fused alumina emery wheel drying means |
| CN111002239A (en) * | 2019-11-22 | 2020-04-14 | 辽宁程瑞砂轮有限公司 | Method for manufacturing ceramic bond large-diameter grinding wheel |
| CN112662869A (en) * | 2020-12-16 | 2021-04-16 | 郑州银泰冶金材料有限公司 | Bonding agent for ball pressing type refining agent, preparation method of bonding agent and ball pressing type refining agent |
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Application publication date: 20131225 |