CN103846818A - Algin-containing cubic boron nitride grinding wheel - Google Patents
Algin-containing cubic boron nitride grinding wheel Download PDFInfo
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- CN103846818A CN103846818A CN201410047941.0A CN201410047941A CN103846818A CN 103846818 A CN103846818 A CN 103846818A CN 201410047941 A CN201410047941 A CN 201410047941A CN 103846818 A CN103846818 A CN 103846818A
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Abstract
The invention relates to the technical field of grinding wheel manufacturing and particularly relates to an algin-containing cubic boron nitride grinding wheel and a production process thereof. The grinding wheel is prepared from the following raw materials in parts by weight: 50-54 parts of cubic boron nitride grinding material, 23-26 parts of white corundum grinding material, 4-5 parts of zinc oxide, 3-4 parts of magnesium oxide, 2-3 parts of white carbon black, 1-2 parts of bamboo powder, 4-5 parts of algin and 7-9 parts of accessory ingredient. According to the grinding wheel, the algin is used for preparing a high-viscosity solution, so that the bonding between the raw materials (such as zinc oxide, white carbon black and bamboo powder) and the grinding materials is firmer, the tenacity is high, and the grinding wheel is easy to mold. The cubic boron nitride grinding wheel prepared by virtue of the production process has improved rigidity and tenacity, and is high in gas hole ratio, rapid in heat dissipation, low in production cost and more excellent in grinding performance.
Description
Technical field
The present invention relates to emery wheel manufacturing technology field, be specifically related to a kind of cubic boron nitride abrasive wheel and production technology thereof containing algin.
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 cubic boron nitride abrasive wheel containing algin is provided, to improve its hardness and toughness, improve grinding performance, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of cubic boron nitride abrasive wheel containing algin, it is characterized in that, emery wheel of the present invention is made up of the raw material of following weight portion: cubic boron nitride abrasive materials 50-54, white fused alumina abrasive material 23-26, zinc oxide 4-5, magnesia 3-4, white carbon 2-3, bamboo powder 1-2, algin 4-5, auxiliary agent 7-9.
Described auxiliary agent is made up of the raw material of following weight portion: thin yellow mud 4-5, ammonium citrate 2-3, kaolin 20-25, glass dregs 6-8, mullite 15-18, potassium silicate 2-3, chromium oxide 1-2, straw pulp 2-3, polyacrylamide 2-3, hydroxyethylcellulose 1-2, flyash 12-15, preparation method is as follows: first by kaolin, glass dregs, mullite, after flyash fully mixes, at 2300-2400 ℃, be incubated 2-3h, after naturally cooling, be milled to 200-300 order powder, again by ammonium citrate, polyacrylamide, hydroxyethylcellulose adds in appropriate water, after being stirred to it 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 cubic boron nitride abrasive wheel containing algin, its production technology is as follows:
(1) algin is mixed with appropriate water, be stirred to algin and dissolve completely, gained solution for standby;
(2) other leftover materials are fully mixed, with the mixing of materials of step (1), stir 20-25min;
(3) material step (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 70-80 ℃, 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 450-500 ℃ in 12-15min, and insulation 4-6 hour, then be warming up to 1350-1500 ℃ by 10-15 ℃/min is incubated taking-up after 8-10 hour, naturally cooling after and get final product.
The invention has the advantages that: utilize algin to be prepared into the solution of high viscosity, make the raw materials such as zinc oxide, white carbon, bamboo powder and abrasive material bonding more firm, toughness is high, easy-formation, make cubic boron nitride abrasive wheel hardness and toughness prepared by the present invention obtain lifting, and the porosity is high, rapid heat dissipation, production cost is low, and grinding performance is more good.
The specific embodiment
Embodiment 1
The present embodiment emery wheel is made up of following weight portion raw material: cubic boron nitride abrasive materials 54, white fused alumina abrasive material 23, zinc oxide 5, magnesia 3, white carbon 3, bamboo powder 1, algin 5, auxiliary agent 7.
Auxiliary agent is made up of the raw material of following weight portion: thin yellow mud 5, ammonium citrate 2, kaolin 25, glass dregs 6, mullite 18, potassium silicate 2, chromium oxide 2, straw pulp 2, polyacrylamide 3, hydroxyethylcellulose 1, flyash 12, preparation method is as follows: first by kaolin, glass dregs, mullite, after flyash fully mixes, at 2400 ℃, be incubated 2h, after naturally cooling, be milled to 300 order powders, again by ammonium citrate, polyacrylamide, hydroxyethylcellulose adds in appropriate water, after being stirred to it 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 cubic boron nitride abrasive wheel containing algin, its production technology is as follows:
(1) algin is mixed with appropriate water, be stirred to algin and dissolve completely, gained solution for standby;
(2) other leftover materials are fully mixed, with the mixing of materials of step (1), stir 25min;
(3) material step (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 80 ℃, pressurize 5min under 25MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 500 ℃ in 15min, be incubated 4 hours, then is warming up to 1500 ℃ by 15 ℃/min, is incubated taking-up after 8 hours, naturally cooling after and get final product.
Embodiment 2
The present embodiment emery wheel is made up of following weight portion raw material: cubic boron nitride abrasive materials 50, white fused alumina abrasive material 26, zinc oxide 4, magnesia 4, white carbon 2, bamboo powder 2, algin 4, auxiliary agent 9.
Auxiliary agent is made up of the raw material of following weight portion: thin yellow mud 4, ammonium citrate 3, kaolin 20, glass dregs 8, mullite 15, potassium silicate 3, chromium oxide 1, straw pulp 3, polyacrylamide 2, hydroxyethylcellulose 2, flyash 15, preparation method is as follows: first by kaolin, glass dregs, mullite, after flyash fully mixes, at 2300 ℃, be incubated 3h, after naturally cooling, be milled to 200 order powders, again by ammonium citrate, polyacrylamide, hydroxyethylcellulose adds in appropriate water, after being stirred to it 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 cubic boron nitride abrasive wheel containing algin, its production technology is as follows:
(1) algin is mixed with appropriate water, be stirred to algin and dissolve completely, gained solution for standby;
(2) other leftover materials are fully mixed, with the mixing of materials of step (1), stir 20min;
(3) material step (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 70 ℃, pressurize 4min under 30MPa condition, and depanning obtains idiosome;
(4) idiosome is carried out to sintering processes, idiosome is first warming up to 450 ℃ in 12min, be incubated 6 hours, then is warming up to 1450 ℃ by 10 ℃/min, is incubated taking-up after 10 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 titanium alloy, and grinding method is transverse grinding, emery wheel peripheral speed: 30m/s, the speed of table: 0.05m/s, grinding depth: 0.025mm.The hardness of the more common cubic boron nitride abrasive wheel of emery wheel prepared by the present invention, grinding performance, bending strength etc. all obtain and improve, and grinding ratio improves 8-12%, and bending strength improves 17-24%.
Claims (3)
1. the cubic boron nitride abrasive wheel containing algin, it is characterized in that, this emery wheel is made up of the raw material of following weight portion: cubic boron nitride abrasive materials 50-54, white fused alumina abrasive material 23-26, zinc oxide 4-5, magnesia 3-4, white carbon 2-3, bamboo powder 1-2, algin 4-5, auxiliary agent 7-9;
Described auxiliary agent is made up of the raw material of following weight portion: thin yellow mud 4-5, ammonium citrate 2-3, kaolin 20-25, glass dregs 6-8, mullite 15-18, potassium silicate 2-3, chromium oxide 1-2, straw pulp 2-3, polyacrylamide 2-3, hydroxyethylcellulose 1-2, flyash 12-15, preparation method is as follows: first by kaolin, glass dregs, mullite, after flyash fully mixes, at 2300-2400 ℃, be incubated 2-3h, after naturally cooling, be milled to 200-300 order powder, again by ammonium citrate, polyacrylamide, hydroxyethylcellulose adds in appropriate water, after being stirred to it and dissolving completely, add above-mentioned powder and other residual components, ball milling 3-4h, dry, obtain.
2. a kind of cubic boron nitride abrasive wheel containing algin as claimed in claim 1, is characterized in that, the particle diameter of described abrasive material is 80-200 order.
3. a kind of cubic boron nitride abrasive wheel containing algin as claimed in claim 1, its technique is as follows:
(1) algin is mixed with appropriate water, be stirred to algin and dissolve completely, gained solution for standby;
(2) other leftover materials are fully mixed, with the mixing of materials of step (1), stir 20-25min;
(3) material step (2) being obtained is sent in mould compressing, condition of molding: mould design temperature is 70-80 ℃, 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 450-500 ℃ in 12-15min, and insulation 4-6 hour, then be warming up to 1350-1500 ℃ by 10-15 ℃/min is incubated taking-up after 8-10 hour, naturally cooling after and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047941.0A CN103846818A (en) | 2014-02-11 | 2014-02-11 | Algin-containing cubic boron nitride grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410047941.0A CN103846818A (en) | 2014-02-11 | 2014-02-11 | Algin-containing cubic boron nitride grinding wheel |
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| CN201410047941.0A Pending CN103846818A (en) | 2014-02-11 | 2014-02-11 | Algin-containing cubic boron nitride grinding wheel |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825559A (en) * | 2012-07-31 | 2012-12-19 | 安徽威铭耐磨材料有限公司 | Ceramic CBN (Cubic Boron Nitride) grinding wheel doped with bamboo charcoal powders |
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- 2014-02-11 CN CN201410047941.0A patent/CN103846818A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825559A (en) * | 2012-07-31 | 2012-12-19 | 安徽威铭耐磨材料有限公司 | Ceramic CBN (Cubic Boron Nitride) grinding wheel doped with bamboo charcoal powders |
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Application publication date: 20140611 |