CN103846821A - Toughened wearable brown aluminium oxide grinding wheel - Google Patents
Toughened wearable brown aluminium oxide grinding wheel Download PDFInfo
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- CN103846821A CN103846821A CN201410047890.1A CN201410047890A CN103846821A CN 103846821 A CN103846821 A CN 103846821A CN 201410047890 A CN201410047890 A CN 201410047890A CN 103846821 A CN103846821 A CN 103846821A
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Abstract
The invention relates to the technical field of grinding wheel manufacturing, in particular to a toughened wearable brown aluminium oxide grinding wheel and a manufacturing technique thereof. The grinding wheel is prepared from the following raw materials in parts by weight: 40-45 parts of brown aluminium oxide grinding materials, 28-32 parts of white corundum grinding materials, 3-4 parts of potassium carbonate, 2-3 parts of sodium carbonate, 2-3 parts of nano SiO2 (Silicon Dioxide) powder, 3-4 parts of nano mullite powder, 1-2 parts of white carbon black, 3-4 parts of N330 carbon black, 2-3 parts of triethyl citrate, and 7-9 parts of adjuvants. According to the grinding wheel, a binding agent, which is made from a plurality of raw materials including SiO2 powder, the nano mullite powder, white carbon black, the N330 carbon black and the like, is stable in chemical property, small in coefficient of thermal expansion, large in controlling intensity of the grinding materials, and realizes flexibility and wearability; furthermore, the aluminium oxide grinding wheel prepared by the invention is high in intensity, good in tenacity, good in heat resistance in a grinding process, is unlikely to heat and block, likely to trim and realizes compression and fracture resistance; and the aluminium oxide grinding wheel is more durable in use in comparison with the general wearable brown aluminium oxide grinding wheel.
Description
Technical field
The present invention relates to emery wheel manufacturing technology field, be specifically related to a kind of toughened antiwear corundum sand wheel and production technology thereof.
Background technology
Emery wheel is the scope of application the most a kind of instrument in grinding tool, mainly to the profile of metal or non-metal workpiece roughly grind, the processing such as half fine grinding, fine grinding and fluting, cut-out, in use in High Rotation Speed state, need to bear larger impulsive force, therefore the intensity to emery wheel, impact resistance, heat resistance and anti-corrosion property energy etc. all have higher requirement, emery wheel mainly by abrasive material and bonding agent through pressed compact, dry, roasting is made, the kind of abrasive material is varied, the common corundum that mainly contains, carborundum, diamond and cubic boron nitride etc., these abrasive materials have good hardness and certain toughness, and its intensity, impact resistance, heat resistance and anti-corrosion property can all depend on bonding agent, common bonding agent is resinoid bond, vitrified bond, gum cement and metallic bond, each bonding agent all has different characteristics, in actual applications should be according to emery wheel workpiece service condition, select suitable bonding agent, to strengthen the abrasive material firm intensity that bonds, improve grinding tool intensity, improve grinding performance, give the serviceability that emery wheel is good.
Summary of the invention
The object of the invention is to, a kind of toughened antiwear corundum sand wheel is provided, to achieve these goals, the technical solution used in the present invention is as follows:
A toughened antiwear corundum sand wheel, is characterized in that, emery wheel of the present invention is made up of the raw material of following weight portion: brown corundum abrasive 40-45, white fused alumina abrasive material 28-32, potash 3-4, sodium carbonate 2-3, nanometer SiO
2powder 2-3, nano mullite powder 3-4, white carbon 1-2, N330 carbon black 3-4, triethyl citrate 2-3, auxiliary agent 7-9.
Described auxiliary agent is made up of the raw material of following weight portion: ice crystal 15-20, calcium aluminate 6-8, sodium lignin sulfonate 2-3, spent pulping liquor 6-8, alumina silicate 3-4, iron powder 10-12, manganese powder 2-3, bentonite 22-25, clay powder 25-28, chalk 12-15, preparation method is as follows: first by ice crystal, calcium aluminate, alumina silicate, bentonite, clay powder, after chalk fully mixes, at 2200-2300 ℃, be incubated 2-3h, after naturally cooling, be milled to 200-300 order powder, again sodium lignin sulfonate is mixed with appropriate water, after being stirred to sodium lignin sulfonate and dissolving completely, add above-mentioned powder and other residual components, ball milling 3-4h, dry, obtain.
The particle diameter of described abrasive material is 80-200 order.
Described a kind of toughened antiwear corundum sand wheel, its production technology is as follows:
(1) by potash, sodium carbonate, nanometer SiO
2powder, nano mullite powder, white carbon, N330 carbon black mix, and compound heats with the speed of 10-15 ℃/min, to 1000-1100 ℃ of stirring 15-20min, be cooled to subsequently room temperature, be milled to after 200-300 order powder, add auxiliary agent, stir for subsequent use;
(2) brown corundum abrasive, white fused alumina abrasive material are heated to 60-70 ℃, add other leftover materials, stir 10-12min, then add the material of step (1) gained, for subsequent use after fully mixing;
(3) mixed material (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 280-300 ℃, pressurize 4-5min under 25-30MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 560-580 ℃ in 12-15min, and insulation 6-8 hour, then be warming up to 1350-1380 ℃ by 10-15 ℃/min is incubated taking-up after 10-12 hour, naturally cooling after and get final product.
The invention has the advantages that: adopt potash, sodium carbonate, nanometer SiO
2the plurality of raw materials such as powder, nano mullite powder, white carbon, N330 carbon black have been made vitrified bond, not only stable chemical nature of this bonding agent, thermal coefficient of expansion is little, pliable and tough wear-resisting, and with abrasive material to control intensity large, corundum sand wheel intensity prepared by the present invention is high, good toughness, pressure-proof and snap-resistent, in grinding process, heat resistance is good, be difficult for heating and stop up, easily finishing, more durable in use compared with common brown corundum wheel.
The specific embodiment
Embodiment 1
The present embodiment emery wheel is made up of following weight portion raw material: brown corundum abrasive 45, white fused alumina abrasive material 32, potash 4, sodium carbonate 2, nanometer SiO
2powder 3, nano mullite powder 3, white carbon 2, N330 carbon black 3, triethyl citrate 2, auxiliary agent 7.
Auxiliary agent is made up of the raw material of following weight portion: ice crystal 20, calcium aluminate 8, sodium lignin sulfonate 2, spent pulping liquor 6, alumina silicate 4, iron powder 10, manganese powder 3, bentonite 25, clay powder 25, chalk 15, preparation method is as follows: first by ice crystal, calcium aluminate, alumina silicate, bentonite, clay powder, after chalk fully mixes, at 2300 ℃, be incubated 2h, after naturally cooling, be milled to 300 order powders, again sodium lignin sulfonate is mixed with appropriate water, after being stirred to sodium lignin sulfonate and dissolving completely, add above-mentioned powder and other residual components, ball milling 3h, dry, obtain.
The particle diameter of described abrasive material is 80 orders.
Described a kind of toughened antiwear corundum sand wheel, its production technology is as follows:
(1) by potash, sodium carbonate, nanometer SiO
2powder, nano mullite powder, white carbon, N330 carbon black mix, and compound heats with the speed of 15 ℃/min, to 1100 ℃ of stirring 15min, are cooled to subsequently room temperature, are milled to after 300 order powders, add auxiliary agent, stir for subsequent use;
(2) brown corundum abrasive, white fused alumina abrasive material are heated to 70 ℃, add other leftover materials, stir 12min, then add the material of step (1) gained, for subsequent use after fully mixing;
(3) mixed material (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 300 ℃, pressurize 5min under 25MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 580 ℃ in 15min, be incubated 8 hours, then is warming up to 1380 ℃ by 15 ℃/min, is incubated taking-up after 10 hours, naturally cooling after and get final product.
Embodiment 2
The present embodiment emery wheel is made up of following weight portion raw material: brown corundum abrasive 45, white fused alumina abrasive material 32, potash 3, sodium carbonate 3, nanometer SiO
2powder 2, nano mullite powder 4, white carbon 1, N330 carbon black 4, triethyl citrate 3, auxiliary agent 9.
Auxiliary agent is made up of the raw material of following weight portion: ice crystal 15, calcium aluminate 6, sodium lignin sulfonate 3, spent pulping liquor 8, alumina silicate 3, iron powder 12, manganese powder 2, bentonite 22, clay powder 28, chalk 12, preparation method is as follows: first by ice crystal, calcium aluminate, alumina silicate, bentonite, clay powder, after chalk fully mixes, at 2200 ℃, be incubated 3h, after naturally cooling, be milled to 200 order powders, again sodium lignin sulfonate is mixed with appropriate water, after being stirred to sodium lignin sulfonate and dissolving completely, add above-mentioned powder and other residual components, ball milling 4h, dry, obtain.
The particle diameter of described abrasive material is 200 orders.
Described a kind of toughened antiwear corundum sand wheel, its production technology is as follows:
(1) by potash, sodium carbonate, nanometer SiO
2powder, nano mullite powder, white carbon, N330 carbon black mix, and compound heats with the speed of 15 ℃/min, to 1000 ℃ of stirring 20min, are cooled to subsequently room temperature, are milled to after 300 order powders, add auxiliary agent, stir for subsequent use;
(2) brown corundum abrasive, white fused alumina abrasive material are heated to 60 ℃, add other leftover materials, stir 12min, then add the material of step (1) gained, for subsequent use after fully mixing;
(3) mixed material (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 280 ℃, pressurize 4min under 30MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 560 ℃ in 12min, be incubated 6 hours, then is warming up to 1350 ℃ by 10 ℃/min, is incubated taking-up after 12 hours, naturally cooling after and get final product.
It is as follows that above-described embodiment emery wheel is tested the technical indicator obtaining:
The performance test of emery wheel is all followed relevant criterion and is carried out, and in test, being ground material is tool steel, and grinding method is transverse grinding, emery wheel peripheral speed: 25m/s, the speed of table: 0.05m/s, grinding depth: 0.025mm.Emery wheel prepared by the present invention all obtains raising compared with hardness, the grinding performance etc. of common brown corundum wheel, and grinding ratio improves 10-15%, and bending strength improves 18-20%, the porosity is higher, more easily heat radiation, and currying work interval extends 2-4 doubly, extends 4-6 service life doubly.
Claims (3)
1. a toughened antiwear corundum sand wheel, is characterized in that, this emery wheel is made up of the raw material of following weight portion: brown corundum abrasive 40-45, white fused alumina abrasive material 28-32, potash 3-4, sodium carbonate 2-3, nanometer SiO
2powder 2-3, nano mullite powder 3-4, white carbon 1-2, N330 carbon black 3-4, triethyl citrate 2-3, auxiliary agent 7-9;
Described auxiliary agent is made up of the raw material of following weight portion: ice crystal 15-20, calcium aluminate 6-8, sodium lignin sulfonate 2-3, spent pulping liquor 6-8, alumina silicate 3-4, iron powder 10-12, manganese powder 2-3, bentonite 22-25, clay powder 25-28, chalk 12-15, preparation method is as follows: first by ice crystal, calcium aluminate, alumina silicate, bentonite, clay powder, after chalk fully mixes, at 2200-2300 ℃, be incubated 2-3h, after naturally cooling, be milled to 200-300 order powder, again sodium lignin sulfonate is mixed with appropriate water, after being stirred to sodium lignin sulfonate and dissolving completely, add above-mentioned powder and other residual components, ball milling 3-4h, dry, obtain.
2. a kind of toughened antiwear corundum sand wheel as claimed in claim 1, is characterized in that, the particle diameter of described abrasive material is 80-200 order.
3. a kind of toughened antiwear corundum sand wheel as claimed in claim 1, its technique is as follows:
(1) by potash, sodium carbonate, nanometer SiO
2powder, nano mullite powder, white carbon, N330 carbon black mix, and compound heats with the speed of 10-15 ℃/min, to 1000-1100 ℃ of stirring 15-20min, be cooled to subsequently room temperature, be milled to after 200-300 order powder, add auxiliary agent, stir for subsequent use;
(2) brown corundum abrasive, white fused alumina abrasive material are heated to 60-70 ℃, add other leftover materials, stir 10-12min, then add the material of step (1) gained, for subsequent use after fully mixing;
(3) mixed material (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 280-300 ℃, pressurize 4-5min under 25-30MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 560-580 ℃ in 12-15min, and insulation 6-8 hour, then be warming up to 1350-1380 ℃ by 10-15 ℃/min is incubated taking-up after 10-12 hour, naturally cooling after and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047890.1A CN103846821A (en) | 2014-02-11 | 2014-02-11 | Toughened wearable brown aluminium oxide grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047890.1A CN103846821A (en) | 2014-02-11 | 2014-02-11 | Toughened wearable brown aluminium oxide grinding wheel |
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| CN103846821A true CN103846821A (en) | 2014-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563354A (en) * | 2015-12-21 | 2016-05-11 | 南皮县晶钻五金磨具制品有限公司 | Unsaturated polyester resin cerium oxide polishing disk and production technology thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580537A (en) * | 1942-09-28 | 1946-09-11 | Norton Grinding Wheel Co Ltd | Method for improving water-resistant characteristics of resins and resinous articles, and resinous products resulting therefrom |
| GB774813A (en) * | 1953-11-12 | 1957-05-15 | American Viscose Corp | Molded abrasive articles and method for producing them |
| CN102009393A (en) * | 2009-09-04 | 2011-04-13 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of high-speed grinding CBN (Cubic Boron Nitride) ceramic grinding wheel |
| CN102059663A (en) * | 2009-11-13 | 2011-05-18 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of CBN (cubic boron nitride) micro ceramic grinding wheel for grinding automobile fuel injection nozzle |
-
2014
- 2014-02-11 CN CN201410047890.1A patent/CN103846821A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580537A (en) * | 1942-09-28 | 1946-09-11 | Norton Grinding Wheel Co Ltd | Method for improving water-resistant characteristics of resins and resinous articles, and resinous products resulting therefrom |
| GB774813A (en) * | 1953-11-12 | 1957-05-15 | American Viscose Corp | Molded abrasive articles and method for producing them |
| CN102009393A (en) * | 2009-09-04 | 2011-04-13 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of high-speed grinding CBN (Cubic Boron Nitride) ceramic grinding wheel |
| CN102059663A (en) * | 2009-11-13 | 2011-05-18 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of CBN (cubic boron nitride) micro ceramic grinding wheel for grinding automobile fuel injection nozzle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563354A (en) * | 2015-12-21 | 2016-05-11 | 南皮县晶钻五金磨具制品有限公司 | Unsaturated polyester resin cerium oxide polishing disk and production technology thereof |
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Application publication date: 20140611 |
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