CN103551982A - Compression-molded flat wheel comprising gridded sisal hemp back cover - Google Patents
Compression-molded flat wheel comprising gridded sisal hemp back cover Download PDFInfo
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- CN103551982A CN103551982A CN201310552327.5A CN201310552327A CN103551982A CN 103551982 A CN103551982 A CN 103551982A CN 201310552327 A CN201310552327 A CN 201310552327A CN 103551982 A CN103551982 A CN 103551982A
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- abrasive material
- tiny balloon
- sisal hemp
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- face wheel
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Abstract
The invention discloses a compression-molded flat wheel comprising a gridded sisal hemp back cover. The compression-molded flat wheel comprises the gridded sisal hemp back cover and a grinding body, and the grinding body is produced with a material consisting of hollow microspheres, abrasive and binder. By regulating the usage of the hollow microspheres and the abrasive, the grinding effect of the compression-molded flat wheel can be regulated.
Description
Technical field
The present invention relates to a kind of compression molding face wheel containing grid sisal hemp back of the body lid, belong to grinding tool field.
Background technology
The various face wheels of current making are to arrange after moulding and bond and form by rule with emery cloth sheet substantially, are not integrated connection between emery cloth sheet, and the fabricbase of emery cloth can not participate in grinding, and the grinding life-span is short.
General resin bond wheel (bonded abrasive tool) is mainly to be formed through mixing, compression molding, heat hardening by abrasive material, resin adhesive, and the use of this class emery wheel exists such as defects such as the heating of the large cutting force of needs, workpiece are serious.
Pore in porous grinding wheel (bonded abrasive tool) be generally in cure process by fill can be at the temperature higher than more than 130 degree the filler (as walnut shell, refined naphthalene etc.) of burn off (being carbonization) burn and form.Thereby but natural fiber also can lose efficacy under this operating mode in carbonization.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of new compression molding face wheel containing grid sisal hemp back of the body lid.
Above-mentioned purpose of the present invention is achieved by the following technical solution: a kind of compression molding face wheel containing grid sisal hemp back of the body lid, comprise grid sisal hemp back of the body lid and grinding body, and described grinding body is made by the raw material that comprises tiny balloon, abrasive material and bonding agent.
In the present invention, described tiny balloon has the characteristic of low-density, high-ratio surface, and its hollow space can hold a large amount of guest molecules or large scale object, the tiny balloon that the present invention adopts includes but not limited to glass tiny balloon, resin tiny balloon or macromolecule tiny balloon, ceramic hollow microballoon; The diameter 20um-10000um of described tiny balloon.
In the present invention, described abrasive material refers to sharp keen, hard, in order to the material of the softer material surface of grinding.Described abrasive material can be natural abrasive, includes but not limited to natural emery, Naxas emery, garnet and natural diamond etc.; Also can be artificial abrasive material, include but not limited to brown corundum abrasive, white fused alumina abrasive material, single alundum abrasive material, black silicon carbide grain, green silicon carbide abrasive material, cubic silicon carbide abrasive material, cerium silicon carbide abrasive material, boron carbide, diamond and cubic boron nitride etc., and the recovery sand of vitrified abrasive, resin wheel etc. etc.
In the present invention, described bonding agent can be phenolic resins, urea aldehyde, melamine resin, epoxy resin or inorganic binder etc., also can be phenolic resin modified, the phenolic aldehyde that comprises the modifications such as urea aldehyde, melamine resin, epoxy, acrylic acid, consumption of binder is raw material total mass ratio 20～50%.
In the present invention, the consumption of described tiny balloon and abrasive material can be adjusted according to actual needs, and the consumption of tiny balloon is the 1-50% of abrasive material volume.Can be 1%, 10.7%, 15%, 20%, 25%, 30%, 35%, 40%, 45% etc.
Fig. 1 shows the typical structure of compression molding face wheel.Grinding body is carried on the grid sisal hemp back of the body and covers.During use, grinding body participates in grinding and consumes self.Grid sisal hemp back of the body lid is for support grinding body transferring power.
Fig. 2 is the microstructure schematic diagram of compression molding face wheel.Binding agent is jointly combined in securely the grid sisal hemp back of the body by abrasive material and tiny balloon and covers.Fig. 3 is depicted as another kind of microstructure schematic diagram, and difference is to have increased one deck grid sisal hemp cloth in the middle of grinding body.
Compression molding face wheel preparation method of the present invention has two kinds:
One: be to be heated and cured into grinding body after abrasive material, tiny balloon and binding agent are mixed to rear mold pressing, and then grinding body and grid sisal hemp back of the body lid are bonded to an integral body with binding agent, form compression molding face wheel, technical process is batch mixing → blowing → mold pressing → solidify → demoulding → glue → dress grid sisal hemp back of the body lid → solidify → packing.
Two: be after directly abrasive material, tiny balloon being mixed with binding agent, to put the grid sisal hemp back of the body to be heating and curing after mold pressing together with covering and to form compression molding face wheel, technical process is: the batch mixing → blowing → dress grid sisal hemp back of the body lid → mold pressing → curing → demoulding → packing.
Accompanying drawing explanation
Fig. 1 is the typical structure of compression molding face wheel of the present invention.
Fig. 2 is the microstructure schematic diagram of compression molding face wheel.
Fig. 3 is another kind of microstructure schematic diagram.
Fig. 4 is the shaping mould that is heating and curing of the present invention.
Fig. 5 is compression molding face wheel stereogram of the present invention.
Fig. 6 is compression molding face wheel sectional schematic diagram of the present invention.
Fig. 7 is face wheel sample 1-3 tiny balloon and the variation of abrasive material volume ratio and grinding ratio, grinding efficiency relation.
Fig. 8 is that face wheel sample 1-3 tiny balloon and abrasive material volume ratio change and exemplar surface roughness relation.
Fig. 9 is that face wheel sample 4-6 tiny balloon and abrasive material volume ratio meet or exceed critical value and grinding ratio, grinding efficiency relation.
Figure 10 is that face wheel sample 4-6 tiny balloon and abrasive material volume ratio meet or exceed critical value and exemplar surface roughness relation.
Figure 11 is the embodiment of the present invention 1 process chart.
In figure 1 for grid sisal hemp back of the body lid, 2 be grinding body, 3 for tiny balloon, 4 for binding agent, 5 for abrasive material, 6 for grid sisal hemp cloth, 7 for abrasive material, binding agent and tiny balloon mixture, 8 be metal mold cavity mould.
The specific embodiment
Formula
1, sample production
11 batch mixings: in ratio in each style formula in formula 1, take successively abrasive material, then add coarse whiting (can be calcined kaolin etc.), stir; Under stirring, add the tiny balloon of handling well, guarantee to stir; Finally under stirring, add modification liquid phenolic resin, stir.Have suffered batch mixing process, surely will guarantee that batch mixing evenly (can not occur caking, clustering phenomena).
2.2 compactings are with curing: press shaping density 2.3-2.5g/cm
3, according to done rubbing down wheel volume size, calculate weighing.Load weighted material is divided in die cavity uniformly (as pressed method two, first will ask back of the body lid (grid sisal hemp back of the body lid) to pack die cavity into, then the material of 1/2 amount is spread out in uniformly to the holder back of the body and covers, then put into grid sisal hemp cloth, then remaining material is spread out on grid sisal hemp cloth uniformly).After dress mould completes, with hydraulic press, pressurize for the first time compressing.Then release is toasted after 2h at 80 ℃, pressurizes for the second time after compacting, toasts after 4-6h (face wheel solidifies 4h, thousand pages of curing 6h of wheel) at 120 ℃, come out of the stove after being slowly down to room temperature, and mould unloading.
2.3 tests are made style and are: the face wheel of plane rubbing down: overall diameter is 4 inches (101.6-103mm), and internal diameter is 55mm, and aperture is 16mm, thickness 6-8mm);
Detect and test data contrast:
1, method of testing explanation: this grinding detects material and is: the face wheel of plane rubbing down: 45# steel plate (the thick * 10mm of the wide 100mm* of long 200mm*); Under identical grinding condition, (grinding material, rubbing down wheel bear pressure, and rotational line speed (60m/s) is all identical respectively.
2, each index calculating method explanation:
2.1 grinding efficiencies: refer to that the worn amount of material is divided by the grinding time, the g/min of unit.
2.2 grinding ratios: the worn amount of material of exemplar and the ratio of rubbing down foot wheel abrasion amount.
2.3 surface roughnesses: refer to less spacing and small peak valley unevenness that finished surface has, the um of unit.Surface roughness is less, and surface is more smooth.With two-tube light-section microscope, measure.
Total grinding testing time is 30min, and every 10min is one section, and minute three sections of collection data, ask arithmetic mean of instantaneous value.
3, Data Collection
3.1 use formulas 1 do face wheel (sample 1, sample 2, sample 3) for plane rubbing down with conventional with grain 60#(common corundum) 4 inches of face wheels contrast:
Note: tiny balloon and abrasive material volume ratio are: sample 4:10.7% sample 5:15% sample 6:20%.
Table 1
Face wheel sample 1-3 tiny balloon and the variation of abrasive material volume ratio and grinding ratio, grinding efficiency relation are as shown in Figure 7; Face wheel sample 1-3 tiny balloon and the variation of abrasive material volume ratio and exemplar surface roughness relation are as shown in Figure 8.
Tiny balloon and abrasive material volume ratio are risen to: sample 7:30% sample 8:40% sample 9:50%, when exploration tiny balloon and abrasive material volume ratio meet or exceed critical value, the rubbing down effect of wheel.
Table 2
Face wheel sample 4-6 tiny balloon and abrasive material volume ratio meet or exceed critical value and grinding ratio, grinding efficiency relation as shown in Figure 9; Face wheel sample 4-6 tiny balloon and abrasive material volume ratio meet or exceed critical value and exemplar surface roughness relation as shown in figure 10.
3.3 face wheel styles 6, with same specification nylon wheel, the contrast of sisal hemp wheel grinding index.
Table 3
Test brief summary:
In same wheel, in the certain situation of sand amount, along with tiny balloon and abrasive material volume ratio become large, the polishing performance of wheel, grinding performance is improved and (but notes: according to 3.2 test datas, find, when tiny balloon and abrasive material volume ratio reach critical value or surpass critical value, grinding performance is by step-down; The consumption of tiny balloon will and be ground material according to the kind of selected microballoon, specification (diameter) size the requirement of the polishing performance of wheel, grinding performance is considered); Can regulate by abrasive species and meet the different requirements of material to the polishing performance of wheel, grinding performance that are ground from grain number simultaneously.
Claims (6)
1. containing the molded face wheel of grid sisal hemp back cover, comprise grid sisal hemp back of the body lid and grinding body, described grinding body is made by raw materials such as comprising tiny balloon, abrasive material and bonding agent.
2. compression molding face wheel as claimed in claim 1, described tiny balloon is selected from glass tiny balloon, resin tiny balloon, macromolecule tiny balloon, ceramic hollow microballoon; The diameter 20um-10000um of described tiny balloon.
3. compression molding face wheel as claimed in claim 1, wherein said abrasive material is selected from the recovery sand of natural emery, Naxas emery, garnet, natural diamond, brown corundum abrasive, white fused alumina abrasive material, single alundum abrasive material, black silicon carbide grain, green silicon carbide abrasive material, cubic silicon carbide abrasive material, cerium silicon carbide abrasive material, boron carbide, diamond, cubic boron nitride or vitrified abrasive, resin wheel.
4. compression molding face wheel as claimed in claim 1, wherein said bonding agent is selected from phenolic resins, urea aldehyde, melamine resin, epoxy resin, inorganic binder or by phenolic resins, urea aldehyde, melamine resin, epoxy, acrylic acid modified phenolic aldehyde.
5. compression molding face wheel as claimed in claim 1, the consumption of wherein said tiny balloon is the 1-50% of abrasive material volume.
6. compression molding face wheel as claimed in claim 1, has increased and has also comprised one deck grid sisal hemp cloth in the middle of wherein said grinding body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552327.5A CN103551982A (en) | 2013-11-08 | 2013-11-08 | Compression-molded flat wheel comprising gridded sisal hemp back cover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310552327.5A CN103551982A (en) | 2013-11-08 | 2013-11-08 | Compression-molded flat wheel comprising gridded sisal hemp back cover |
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| CN103551982A true CN103551982A (en) | 2014-02-05 |
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| CN201310552327.5A Pending CN103551982A (en) | 2013-11-08 | 2013-11-08 | Compression-molded flat wheel comprising gridded sisal hemp back cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041765A (en) * | 2016-05-31 | 2016-10-26 | 安徽砥钻砂轮有限公司 | High-toughness wear-resisting resin cutting grinding wheel and preparing method thereof |
Citations (6)
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|---|---|---|---|---|
| CN1232419A (en) * | 1996-10-09 | 1999-10-20 | 诺顿公司 | Silicon carbide abrasive wheel |
| US20050170764A1 (en) * | 2004-01-31 | 2005-08-04 | Sun Abrasives Co., Ltd. | Back up pad of grinding wheel |
| CN201645338U (en) * | 2009-11-20 | 2010-11-24 | 王毅力 | Hollow ball grinding wheel |
| WO2012000647A1 (en) * | 2010-06-29 | 2012-01-05 | Gerd Eisenblätter Gmbh | Tool support with a reinforcement of jute fibers, and an injection molding method for producing such a tool support |
| CN202922435U (en) * | 2012-11-27 | 2013-05-08 | 天津友昇研磨科技发展有限公司 | Grid rigid abrasive disc |
| CN103372817A (en) * | 2012-04-26 | 2013-10-30 | 圣戈班磨料磨具(上海)有限公司 | Improved tool |
-
2013
- 2013-11-08 CN CN201310552327.5A patent/CN103551982A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232419A (en) * | 1996-10-09 | 1999-10-20 | 诺顿公司 | Silicon carbide abrasive wheel |
| US20050170764A1 (en) * | 2004-01-31 | 2005-08-04 | Sun Abrasives Co., Ltd. | Back up pad of grinding wheel |
| CN201645338U (en) * | 2009-11-20 | 2010-11-24 | 王毅力 | Hollow ball grinding wheel |
| WO2012000647A1 (en) * | 2010-06-29 | 2012-01-05 | Gerd Eisenblätter Gmbh | Tool support with a reinforcement of jute fibers, and an injection molding method for producing such a tool support |
| CN103372817A (en) * | 2012-04-26 | 2013-10-30 | 圣戈班磨料磨具(上海)有限公司 | Improved tool |
| CN202922435U (en) * | 2012-11-27 | 2013-05-08 | 天津友昇研磨科技发展有限公司 | Grid rigid abrasive disc |
Non-Patent Citations (2)
| Title |
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| 李志宏: "《陶瓷磨具制造》", 30 September 2000 * |
| 邹文俊: "《涂附磨具制造》", 31 December 2000, 中国标准出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041765A (en) * | 2016-05-31 | 2016-10-26 | 安徽砥钻砂轮有限公司 | High-toughness wear-resisting resin cutting grinding wheel and preparing method thereof |
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