CN102825557A - Polyvinyl acetal resin grinding wheel and production method thereof - Google Patents
Polyvinyl acetal resin grinding wheel and production method thereof Download PDFInfo
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- CN102825557A CN102825557A CN201210271109XA CN201210271109A CN102825557A CN 102825557 A CN102825557 A CN 102825557A CN 201210271109X A CN201210271109X A CN 201210271109XA CN 201210271109 A CN201210271109 A CN 201210271109A CN 102825557 A CN102825557 A CN 102825557A
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Abstract
The invention discloses a polyvinyl acetal resin grinding wheel and a production method thereof. The polyvinyl acetal resin grinding wheel comprises the following materials in weight by parts: 50-60 parts of CBN abrasives, 5-10 parts of zirconia corundum abrasives, 5-10 parts of silicon powders, 5-15 parts of polyvinyl acetal resin powders, 2-6 parts of furfural, 1-2 parts of trioctyl trimellitate, 5-10 parts of cryolite, 5-10 parts of bauxite, 2-5 parts of nanometer siliceous shale powders and 2-5 parts of tool steel powders. The binder polyvinyl acetal resin used by the invention has high mechanical strength and good heat resistance, and the durability of the prepared resin grinding wheel is greatly improved. According to the invention, ceramic materials are added into a filer, thus the polyvinyl acetal resin grinding wheel has good bonding performance, the abrasives do not easily fall off, the heat resistance and the hardness of the resin grinding wheel are improved, cracks formed by rigid grinding are reduced, and the service efficiency and the service life of the resin grinding wheel are improved; and in addition, as the tool steel powders are added, thus the heat dissipation is fast to be beneficial for fast dissipating a large number of head emitted during cutting of the grinding wheel the role of reducing the cutting temperature is played.
Description
Technical field
The present invention relates to a kind of polyvinyl acetal resin emery wheel and preparation method thereof, belong to the grinding tool processing technique field.
Background technology
Emery wheel is topmost one type of grinding tool in the grinding.Emery wheel is in abrasive material, to add bond, the porous body of processing through pressed compact, drying and roasting.Emery wheel is a kind of that consumption is maximum in the grinding tool, use face is the widest, rotates at a high speed during use, can roughly grind the cylindrical of metal or non-metal workpiece, interior circle, plane and various profiles etc., half correct grinding and correct grinding and fluting and cut-out etc.Material in order to bonded abrasive in the emery wheel is claimed bond, intensity, impact resistance, hear resistance and the resistance to corrosion of the performance decision emery wheel of bond.At present bond mainly is divided into four kinds on pottery, resin, rubber and metal, and wherein resinoid bond intensity is high, elasticity is big, shock-resistant, is applicable to v>high-speed grinding of 50m/s, can be made into disc wheel, be used for slot grinding, cutting etc.Be referred to as resin wheel with resin as the emery wheel of bond.
Resin wheel divides by abrasive material and generally is divided into ordinary resin emery wheel and superhard resin wheel.The ordinary resin emery wheel is to be the emery wheel of main grinding composition with conventional abrasive materials such as brown corundum, brown corundum, carborundum, and superhard resin wheel is to be the emery wheel of main grinding composition with diamond or CBN.Resin wheel has that grinding force is little, grinding temperature is low, self-sharpening is good, the grinding efficiency advantages of higher, is widely used in the grinding of hard brittle materials such as carbide alloy, pottery, glass.We know; At present resin wheel many with phenolic resins as bond; Bakelite bonded wheel is relatively poor in the grinding process hear resistance; Thereby restricted the service efficiency and the life-span of resin wheel to a great extent, therefore developed the focus that a kind of new high resin wheel of hear resistance becomes current research.
Summary of the invention
For addressing the above problem, the invention provides a kind of polyvinyl acetal resin emery wheel and preparation method thereof, improved the hear resistance of resin wheel.
The present invention adopts following technical scheme:
A kind of polyvinyl acetal resin emery wheel is characterized in that, its raw material by following weight portion is processed:
CBN abrasive material 50-60, fused alumina zirconia abrasive material 5-10, carborundum powder 5-10, polyvinyl acetal resin powder 5-15, furfural 2-6, trimellitic acid three different monooctyl ester 1-2, ice crystal 5-10, bauxite 5-10, the siliceous shale powder 2-5 of nanometer, instrument comminuted steel shot 2-5.
One of each prescription in the weight portion of described each raw material components of polyvinyl acetal resin emery wheel such as the following table:
| Raw material | The CBN abrasive material | The fused alumina zirconia abrasive material | Carborundum powder | The polyvinyl acetal resin powder | Furfural | Trimellitic acid three different monooctyl esters | Ice crystal | Bauxite | The siliceous shale powder of nanometer | The instrument comminuted steel shot |
| Prescription 1 | 51 | 5 | 6 | 6 | 2 | 1.2 | 5 | 6 | 3 | 2 |
| Prescription 2 | 53 | 7 | 8 | 10 | 4 | 1.5 | 7 | 8 | 5 | 4 |
| Prescription 3 | 56 | 8 | 9 | 13 | 5 | 1.7 | 9 | 8 | 6 | 5 |
| Prescription 4 | 59 | 10 | 10 | 15 | 6 | 2.0 | 10 | 10 | 7 | 6 |
The preparation method of described polyvinyl acetal resin emery wheel is characterized in that comprising the following steps:
(1) mixing material
Take by weighing raw material by said ratio; Then brown corundum abrasive and carborundum powder being put into furfural soaks into; Abrasive material and furfural will be mixed even; Add polyvinyl acetal resin powder, trimellitic acid three different monooctyl esters, ice crystal, bauxite, the siliceous shale powder of nanometer, instrument comminuted steel shot again, discharging is mixed rapidly;
(2) sieve
The sieve of mixed material particles through 8-12 mesh sieve hole screened 1-2 time, be used for the molding mass of moulding through the i.e. conduct of particle of sieve;
(3) compression moulding
Take by weighing the molding mass of approrpiate wts; Be poured in the mould and shakeout; Make the molding mass thickness even; And in molding mass, add reinforced sheet reinforced sheet is flatly imbedded in the molding mass fully, adopt low temperature and pressure moulding low temperature and pressure temperature to be controlled at 80-90 ℃, press and scrape the back and be about to mould and be inverted in and carry out the demoulding on the glass plate;
(4) solidify
The emery wheel base that the demoulding is obtained moves into that heating makes its curing in the curing oven.80 ℃ are played temperature, per hour to heat up 10 ℃ speed, rise to 160-170 ℃, be incubateds after 4-5 hour and cool off naturally, reduce to room temperature and promptly get required emery wheel goods.
Described mould should be beneficial to the demoulding at die cavity shop one deck nylon paper before putting into molding mass.
Described reinforced sheet is a 20-40 thigh yarn, 6-8 purpose fiberglass gridding cloth, and the grid cloth two sides scribbles phenolic resins, with the caking property of increase with goods.
The present invention has following beneficial effect:
(1) the used bond polyvinyl acetal resin of the present invention has higher mechanical strength, has good hear resistance, and the resin wheel durability for preparing improves greatly;
(2) the present invention has added ceramic material in filler, and its adhesive property is good, makes the abrasive material difficult drop-off, and has improved the hear resistance and the hardness of resin wheel, reduces the crackle that the rigidity grinding forms, thereby improves the service efficiency and the life-span of resin wheel; Also added the tool steel flour gold in addition and belonged to powder, rapid heat dissipation helps dissipating a large amount of heats that emery wheel is emitted fast in cutting process, plays the effect that reduces cutting temperature.
The specific embodiment
Followingly the present invention is further described through specific embodiment.
Embodiment 1
The polyvinyl acetal resin emery wheel is processed by the raw material of following weight portion: the siliceous shale powder of the different monooctyl ester of CBN abrasive material 51, fused alumina zirconia abrasive material 5, carborundum powder 6, polyvinyl acetal resin powder 6, furfural 2, trimellitic acid three 1.2, ice crystal 5, bauxite 6, nanometer 3, instrument comminuted steel shot 2.
The preparation method of polyvinyl acetal resin emery wheel may further comprise the steps:
(1) mixing material
Take by weighing raw material by said ratio; Then brown corundum abrasive and carborundum powder being put into furfural soaks into; Abrasive material and furfural will be mixed even, add polyvinyl acetal resin powder, epoxidation triglyceride, ice crystal, bauxite, the siliceous shale powder of nanometer, instrument comminuted steel shot again, and discharging is mixed rapidly;
(2) sieve
The sieve of mixed material particles through 8-12 mesh sieve hole screened 1-2 time, be used for the molding mass of moulding through the i.e. conduct of particle of sieve;
(3) compression moulding
Take by weighing the molding mass of approrpiate wts; Be poured in the mould and shakeout; Make the molding mass thickness even; And in molding mass, add reinforced sheet reinforced sheet is flatly imbedded in the molding mass fully, adopt low temperature and pressure moulding low temperature and pressure temperature to be controlled at 80-90 ℃, press and scrape the back and be about to mould and be inverted in and carry out the demoulding on the glass plate;
(4) solidify
The emery wheel base that the demoulding is obtained moves into that heating makes its curing in the curing oven.80 ℃ are played temperature, per hour to heat up 10 ℃ speed, rise to 160-170 ℃, be incubateds after 4-5 hour and cool off naturally, reduce to room temperature and promptly get required emery wheel goods.
Described mould should be beneficial to the demoulding at die cavity shop one deck nylon paper before putting into molding mass.
Described reinforced sheet is a 20-40 thigh yarn, 6-8 purpose fiberglass gridding cloth, and the grid cloth two sides scribbles phenolic resins, with the caking property of increase with goods.
Embodiment 2
The polyvinyl acetal resin emery wheel is processed by the raw material of following weight portion: the siliceous shale powder of the different monooctyl ester of CBN abrasive material 53, fused alumina zirconia abrasive material 7, carborundum powder 8, polyvinyl acetal resin powder 10, furfural 4, trimellitic acid three 1.5, ice crystal 7, bauxite 8, nanometer 5, instrument comminuted steel shot 4.
The preparation method of polyvinyl acetal resin emery wheel is with embodiment 1.
Embodiment 3
The polyvinyl acetal resin emery wheel is processed by the raw material of following weight portion: the siliceous shale powder of the different monooctyl ester of CBN abrasive material 56, fused alumina zirconia abrasive material 8, carborundum powder 9, polyvinyl acetal resin powder 13, furfural 5, trimellitic acid three 1.7, ice crystal 9, bauxite 8, nanometer 6, instrument comminuted steel shot 5.
The preparation method of polyvinyl acetal resin emery wheel is with embodiment 1.
Embodiment 4
The polyvinyl acetal resin emery wheel is processed by the raw material of following weight portion: the siliceous shale powder of the different monooctyl ester of CBN abrasive material 59, fused alumina zirconia abrasive material 10, carborundum powder 10, polyvinyl acetal resin powder 15, furfural 6, trimellitic acid three 2.0, ice crystal 10, bauxite 10, nanometer 7, instrument comminuted steel shot 6.
The preparation method of polyvinyl acetal resin emery wheel is with embodiment 1.
Claims (4)
1. a polyvinyl acetal resin emery wheel is characterized in that, its raw material by following weight portion is processed:
CBN abrasive material 50-60, fused alumina zirconia abrasive material 5-10, carborundum powder 5-10, polyvinyl acetal resin powder 5-15, furfural 2-6, trimellitic acid three different monooctyl ester 1-2, ice crystal 5-10, bauxite 5-10, the siliceous shale powder 2-5 of nanometer, instrument comminuted steel shot 2-5.
2. polyvinyl acetal resin emery wheel according to claim 1 is characterized in that, one of each prescription in the weight portion of described each raw material components of polyvinyl acetal resin emery wheel such as the following table:
A kind of preparation method of polyvinyl acetal resin emery wheel according to claim 1 or claim 2 is characterized in that comprising the following steps:
Mixing material
Take by weighing raw material by said ratio; Then brown corundum abrasive and carborundum powder being put into furfural soaks into; Abrasive material and furfural will be mixed even; Add polyvinyl acetal resin powder, trimellitic acid three different monooctyl esters, ice crystal, bauxite, the siliceous shale powder of nanometer, instrument comminuted steel shot again, discharging is mixed rapidly;
Sieve
The sieve of mixed material particles through 8-12 mesh sieve hole screened 1-2 time, be used for the molding mass of moulding through the i.e. conduct of particle of sieve;
Compression moulding
Take by weighing the molding mass of approrpiate wts; Be poured in the mould and shakeout; Make the molding mass thickness even; And in molding mass, add reinforced sheet reinforced sheet is flatly imbedded in the molding mass fully, adopt low temperature and pressure moulding low temperature and pressure temperature to be controlled at 80-90 ℃, press and scrape the back and be about to mould and be inverted in and carry out the demoulding on the glass plate;
Solidify
The emery wheel base that the demoulding is obtained moves into that heating makes its curing in the curing oven, and 80 ℃ are played temperature, per hour to heat up 10 ℃ speed, rises to 160-170 ℃, be incubated after 4-5 hour and cools off naturally, reduces to room temperature and promptly gets required emery wheel goods.
3. the preparation method of polyvinyl acetal resin emery wheel according to claim 3 is characterized in that, described mould should be beneficial to the demoulding at die cavity shop one deck nylon paper before putting into molding mass.
4. the preparation method of polyvinyl acetal resin emery wheel according to claim 3 is characterized in that, described reinforced sheet is a 20-40 thigh yarn, 6-8 purpose fiberglass gridding cloth, and the grid cloth two sides scribbles phenolic resins, with the caking property of increase with goods.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364731A (en) * | 2015-09-28 | 2016-03-02 | 沈阳市盛世磨料磨具有限公司 | Heavy-load grinding wheel and machining method thereof |
| CN107020584A (en) * | 2017-05-27 | 2017-08-08 | 江苏赛扬精工科技有限责任公司 | With circle mill CBN emery wheels and preparation method thereof in a kind of efficient high life cylinder |
| CN107378803A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high-strength abrasion-proof emery wheel material and preparation method thereof |
| CN107378804A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high cooling efficiency emery wheel material |
| CN108214338A (en) * | 2017-12-19 | 2018-06-29 | 黄山安卡重负荷砂轮有限公司 | A kind of production technology of interface modification type high-strength environment-friendly heavy duty grinding wheel |
| CN109531452A (en) * | 2018-11-29 | 2019-03-29 | 河南利刚王磨料磨具有限公司 | A kind of environmental protection type resin grinding wheel and preparation method thereof |
| CN112959228A (en) * | 2021-02-24 | 2021-06-15 | 南京美宏研磨有限公司 | Fiber reinforced resin grinding wheel and preparation method thereof |
| CN113618646A (en) * | 2021-08-04 | 2021-11-09 | 白鸽磨料磨具有限公司 | PVA/CBN composite fiber abrasive and resin grinding wheel prepared by same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364731A (en) * | 2015-09-28 | 2016-03-02 | 沈阳市盛世磨料磨具有限公司 | Heavy-load grinding wheel and machining method thereof |
| CN107020584A (en) * | 2017-05-27 | 2017-08-08 | 江苏赛扬精工科技有限责任公司 | With circle mill CBN emery wheels and preparation method thereof in a kind of efficient high life cylinder |
| CN107020584B (en) * | 2017-05-27 | 2019-09-13 | 江苏赛扬精工科技有限责任公司 | A kind of interior circle mill CBN grinding wheel and preparation method thereof of efficient high life cylinder |
| CN107378803A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high-strength abrasion-proof emery wheel material and preparation method thereof |
| CN107378804A (en) * | 2017-08-09 | 2017-11-24 | 安徽昌悌进出口贸易有限公司 | A kind of resin base high cooling efficiency emery wheel material |
| CN108214338A (en) * | 2017-12-19 | 2018-06-29 | 黄山安卡重负荷砂轮有限公司 | A kind of production technology of interface modification type high-strength environment-friendly heavy duty grinding wheel |
| CN109531452A (en) * | 2018-11-29 | 2019-03-29 | 河南利刚王磨料磨具有限公司 | A kind of environmental protection type resin grinding wheel and preparation method thereof |
| CN109531452B (en) * | 2018-11-29 | 2020-10-16 | 河南利刚王磨料磨具有限公司 | Environment-friendly resin grinding wheel and preparation method thereof |
| CN112959228A (en) * | 2021-02-24 | 2021-06-15 | 南京美宏研磨有限公司 | Fiber reinforced resin grinding wheel and preparation method thereof |
| CN113618646A (en) * | 2021-08-04 | 2021-11-09 | 白鸽磨料磨具有限公司 | PVA/CBN composite fiber abrasive and resin grinding wheel prepared by same |
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| CN102825557B (en) | 2015-07-15 |
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