CN105081996A - Manufacturing technology of soft and elastic polishing abrasive tool - Google Patents
Manufacturing technology of soft and elastic polishing abrasive tool Download PDFInfo
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- CN105081996A CN105081996A CN201410222077.3A CN201410222077A CN105081996A CN 105081996 A CN105081996 A CN 105081996A CN 201410222077 A CN201410222077 A CN 201410222077A CN 105081996 A CN105081996 A CN 105081996A
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- soft
- silica gel
- methyl phenyl
- silicone resin
- phenyl silicone
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Abstract
The invention discloses a manufacturing technology of a soft and elastic polishing abrasive tool. Silica gel and methyl phenyl silicone resin are mainly adopted as binding agents of ingredients of the soft and elastic polishing abrasive tool. The polishing abrasive tool is mainly used for precision finishing, and can be kept in close attachment to a machined surface all the time in the precision finishing process, and surface uniformity and high-quality machining are achieved. The manufacturing technology is characterized in that all material compositions comprise, by mass, 24%-35% of silica gel, 55%-66% of grinding material (silicon carbide or boron carbide or diamond or other else), 6%-8% of methyl phenyl silicone resin, 2%-2.5% of epoxy resin flexibilizer, 0.7%-1.3% of curing agent and 0-0.18% of brightener. The grinding material and the binding agents are evenly mixed in a mechanically stirred manner, room temperature curing is carried out for 2 hours, and hardening treatment is carried out at 120 DEG C for 4-5 hours. The manufactured polishing abrasive tool is a soft and elastic body with the grinding material, is good in flexibility and high in adaptability and machining efficiency, does not damage workpieces and is an environment-friendly polishing tool with excellent performance.
Description
Technical field
The present invention relates to the polishing tool of precise finishing technical field, particularly relate to a kind of soft elastic polished grinding tool, the invention still further relates to the technology of preparing of soft bullet polishing abrasive tool.
Background technology
The mechanical type polishing of precision finishing is mainly with three kinds of forms such as fixed grain polishing, semi-consolidated Abrasive Polishing and free abrasive polishings.Fixed grain polishing wheel is elastomer, and the materials such as conventional cotton, felt, leather, paper and burlap form through sewing up or gluing together, then are adhesive in the polishing wheel of flexible material with abrasive particle; Semi-consolidated Abrasive Polishing wheel is basically identical with fixed grain polishing wheel, and just abrasive particle dubs and applies on polishing wheel; Free abrasive polishing wheel is polishing wheel in liquid, and degreasing timber and the fine felt of adopting makes more, and abrasive particle is free between polishing wheel and polishing wheel.Therefore, traditional finishing method, abrasive particle and polishing tool are not an effective entirety, and process abrasive particle and polishing tool are difficult to fit completely, cause contact zone abrasive particle unbalance stress to affect machined surface quality.As can be seen here, if making elastomeric polishing tool and abrasive material organically be combined will be very good system of selection, start in prior art with resin-based grinding tool to reduce the hardness of emery wheel, as application number: CN201110076155.X patent of invention " a kind of high-performance green resin grinding apparatus base grinding tool and preparation method thereof ", a kind of high-performance green resin grinding apparatus base grinding tool of this disclosure of the invention, comprise enhancement layer and grinding layer, it is characterized in that: described grinding layer is by abrasive material, bonding agent, filler, pigment is prepared from by weight 70-110: 15-25: 3-9: 3-8, wherein institute's abrasive material is by Brown Alundum, single corundum and pottery mix.The green grinding tool that the high-performance green resin grinding apparatus grinding tool grinding efficiency of this invention is high, do not hinder the function admirables such as workpiece, but be only the one of emery wheel from the angle of theory, just hardness decreases, and really realizes soft elastic grindstone polishing and also there is larger gap; And for example application number: CN102717341A patent of invention discloses a kind of resin matrix soft shaping grinding apparatus and finishing method thereof, it is characterized in that: each material is vinylacetate 13.6%-19.4% by mass ratio, parylene's butanediol ester 17.3%-22%, dimethyl silicone polymer 14.4%-23.3%, glass fibre 1.4%-4.5%, carborundum 26%-32%, brightener 0-1.2%, paraffin 7%-11%.A kind of high accuracy Wear-resistant Sharper that this invention proposes, adopts vinylacetate and parylene's butanediol ester to be the resin-based of bonding agent, and adopts male and fomale(M&F) inscription rubbing formula molding method to realize.In sum, all not relating in various patent of invention with silica gel is soft elastic grindstone and the technology of preparing of bonding agent.
For this reason, in precision finishing, wish to find one both can Loss reducing, simultaneously again can the polishing abrasive tool evenly processed of urged against surface, thus ensure high-quality method of surface finish.Realize these effects, the polishing of soft elasticity buffing tool is adopted to be effective method, and silica gel is exactly make the desirable bonding agent of this soft elastic grindstone, there is the features such as high temperature resistant, resistance to tearing and high resiliency, and with resin material, there is fabulous compatibility, dissolve in the methyl phenyl silicone resin that appropriate thermoelasticity is good, caking property is high in the present invention, the elasticity of this bonding agent, pliability, wearability can be played to ultimate attainment.And nontoxic for bonding agent is, tasteless, the free of contamination material such as silica gel and methyl phenyl silicone resin, be good green material.
Summary of the invention
A kind of soft elastic grindstone and preparation technology thereof are the object of this invention is to provide, it is characterized in that by quality of materials ratios such as abrasive particle, bonding agent, fillers: silica gel 24%-35%, abrasive material (carborundum, boron carbide or diamond etc.) 55%-66%, methyl phenyl silicone resin 6%-8%, epoxy resin toughener 2%-2.5%, curing agent 0.7%-1.3%, brightener 0-0.18%.Rely on the feature of the mollielast of polishing abrasive tool, in precision finishing, abrasive particle can be distributed in finished surface equably, forms splendid contact area, thus ensures good crudy.
Preferably, soft flexible polishing abrasive tool, it is characterized in that bonding agent is silica gel and methyl phenyl silicone resin, is silica gel 24%-35% by total mass ratio, methyl phenyl silicone resin 6%-8%.
Preferably, the standby technique of soft elastic polished grinding tool, by above-mentioned mass ratio: first by mixtures such as silica gel, methyl phenyl silicone resin, epoxy resin toughener and brighteners, and heat; Again abrasive particle, curing agent are poured in binder mixtures and mixed, fully stir; Die cavity coats releasing agent, is filled up in die cavity by abrasive material and suitably pressurizes, and vibration air exhaust; Admittedly put into curer again adds warm hardening to compressing mould in atmosphere, cools to the room temperature demoulding after insulation with the furnace.
Preferably, the preparation technology of soft elastic polished grinding tool, bonding agent Hybrid Heating temperature 60-70 DEG C, and be incubated 15min;
Preferably, the preparation technology of soft elastic polished grinding tool, briquetting pressure is 0.1-0.3MPa.
Preferably, manufacture craft hardening temperature and the temperature retention time of soft elastic polished grinding tool are: heating-up temperature to 120 DEG C, insulation 4-5 hour.
For reaching above-mentioned effect, make every effort to preparation method simply, cost performance is high, and the present invention controls preparation technology parameter in the error range allowed.
Accompanying drawing explanation
The soft elastic grindstone structure chart of Fig. 1.
Soft elastic grindstone of the present invention is made up of knife bar 1 and soft Spring grinding head 2, and for there being the revolving body of concentricity requirement, grinding head for polishing is the mollielast containing abrasive material, be evenly distributed between abrasive material and bonding agent, knife bar is determined by lathe size for connection, soft grinding head shape needs to determine according to workpiece, is applicable to the processing such as plane, curved surface, endoporus and inner face.
The soft elastic grindstone Tissue distribution figure of Fig. 2
1, in figure, white point is 80# black silicon carbide abrasive particle, 2, soft elastic grindstone matrix (comprising silica gel, the structural agent of methyl phenyl silicone resin, flexibilizer, curing agent and brightener etc.).Clearly can observe abrasive particle by Fig. 2 to be distributed in equably in the matrix of soft elastic grindstone.
Concrete analysis process
For the performance making polishing abrasive tool reach mollielast better, realize high-quality skin processing precision, according to the factor such as material, hardness, surface geometrical property of workpiece, soft elastic polished grinding tool is divided into low-density, Midst density and highdensity soft elastic polished grinding tool by the mass ratio of abrasive material.
Preferred mass percent determines following composition embodiment 1:
Silica gel 36.3%; 150# carborundum (SiC) 53.5%; Methyl phenyl silicone resin 6.9%; Epoxy resin toughener 2.2%; Curing agent 1%; Brightener 0.10%.
With the method that this ratio mixes, the abrasive particle of carborundum (SiC) is relatively little at grinding tool distribution abrasive material, but is prepared from bistrique and is rich in flexible, and stressed rear elastic deformability is strong, is particularly suitable for endoporus, inner face and more complicated Machining of Curved Surface.
Preferred mass percent determines following composition, embodiment 2:
Silica gel 30.6%; 150# carborundum (SiC) 59.3%; Methyl phenyl silicone resin 6.8%; Epoxy resin toughener 2.2%; Curing agent 1%; Brightener 0.1%.
The method of this ratio mixing, the abrasive particle of carborundum (SiC) is relatively many at grinding tool distribution abrasive material, but is prepared from bistrique high resilience, and stressed rear elastic deformability is medium, is suitable for the processing of endoporus, plane and general surface.
Preferred mass percent determines following composition, embodiment 3:
Silica gel 24.7%; 150# carborundum (SiC) 65.4%; Methyl phenyl silicone resin 6.7%; Epoxy resin toughener 2.3%; Curing agent 0.8%; Brightener 0.1%.
The method of this ratio mixing, the abrasive particle of carborundum (SiC) is larger in grinding tool distribution abrasive material relative density, although stressed rear elastic deformability weakens to some extent, but still there is the unapproachable soft elasticity of general polishing abrasive tool, process also can not disfiguring workpiece, many owing to participating in abrasive particle in precision finishing, working (machining) efficiency is high, is suitable for the comparatively simple Machining of Curved Surface of plane, endoporus and shape.
The properties of product test of preparing in above-described embodiment is as shown in table 1 below:
The soft elastic grindstone elastic stiffness of table 1 measures
| Example 1 | Example 2 | Example 3 | |
| Buffing tool elastic stiffness (N/mm) | 21.225 | 83.720 | 120.718 |
[0029]from table 1 test data, the polishing abrasive tool adopting technical scheme of the present invention to prepare has good soft elasticity, the performance of precision finishing of brilliance.
The foregoing is only the specific embodiment of patent of the present invention, but the technical characteristic of the invention is not limited thereto, any those skilled in the art is in the field of the invention, and the soft elastic polished grinding tool that the composition done, technique, Parameters variation or modification obtain all is encompassed among the scope of the claims of the present invention.
Claims (8)
1. the preparation technology of a soft elastic polishing tool, to it is characterized in that by materials such as abrasive particle, bonding agent, fillers by quality proportioning: silica gel 24%-35%, abrasive material (carborundum, boron carbide or diamond etc.) 55%-66%, methyl phenyl silicone resin 6%-8%, epoxy resin toughener 2%-2.5%, curing agent 0.7%-1.3%, brightener 0-0.18%, air at room temperature solidifies 2 hours, 120 DEG C of cure process 4-5 hour.
2. soft elastic grindstone as claimed in claim 1, its feature is primarily of knife bar and soft Spring grinding head composition, and there is both requiring the revolving body of concentricity requirement, knife bar is determined by lathe size for connection, soft grinding head shape needs to determine according to workpiece, is applicable to the processing such as plane, curved surface, endoporus and inner face.
3. the preparation technology of soft elastic polished grinding tool as claimed in claim 1, it is characterized in that bonding agent is silica gel and methyl phenyl silicone resin, is silica gel 24%-35% by total mass ratio, methyl phenyl silicone resin 6%-8%.
4. the preparation technology of soft elastic polished grinding tool as claimed in claim 1, it is characterized in that: by silica gel 24%-35%, methyl phenyl silicone resin 6%-8%, the Homogeneous phase mixing such as epoxy resin toughener 2%-2.5% and brightener 0-0.18%, and heating-up temperature 60-70 DEG C, and be incubated 15min mixture is heated evenly.
5. bonding agent as claimed in claim 4 mixes with abrasive material, then by abrasive particle 55%-66%, curing agent 0.7%-1.3% mixes with bonding agent, and fully stirs.
6. preparation technology as claimed in claim 1 carries out shaping preparation, and coat releasing agent in die cavity, filled up by abrasive material in die cavity, suitably pressurize, briquetting pressure is 0.1-0.3MPa, and vibration exhaust.
7. preparation technology as claimed in claim 1, solidifies 2 hours in atmosphere by compressing mould.
8. the preparation technology as described in claim 1 and 7, then the grinding tool after solidification is put into curer and added warm hardening, hardening temperature 120 DEG C, temperature retention time 4-5 hour, carry out the demoulding after cooling to room temperature with the furnace after final insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410222077.3A CN105081996A (en) | 2014-05-21 | 2014-05-21 | Manufacturing technology of soft and elastic polishing abrasive tool |
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| CN201410222077.3A CN105081996A (en) | 2014-05-21 | 2014-05-21 | Manufacturing technology of soft and elastic polishing abrasive tool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538183A (en) * | 2015-12-09 | 2016-05-04 | 郑州磨料磨具磨削研究所有限公司 | Flexible polishing head and preparation method thereof |
| CN111283560A (en) * | 2020-03-20 | 2020-06-16 | 北京荣锋精密工具有限公司 | Superhard abrasive grinding wheel for grinding fingerprint identification lock substrate and preparation method thereof |
| CN111745555A (en) * | 2020-06-08 | 2020-10-09 | 3M材料技术(合肥)有限公司 | Polishing tool manufacturing system and polishing tool manufacturing method |
| CN112045500A (en) * | 2020-09-04 | 2020-12-08 | 江西昌河航空工业有限公司 | Polishing processing method of precision hole |
| CN115008356A (en) * | 2022-07-20 | 2022-09-06 | 华侨大学 | Preparation method of soft-hard composite structure thinning grinding wheel |
| CN115056080A (en) * | 2022-06-16 | 2022-09-16 | 长安大学 | Elastic grinding and polishing tool |
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| CN1253160A (en) * | 1998-11-09 | 2000-05-17 | 科莱恩(法国)公司 | New type abrasive composition used in integrated circuit electronic industry |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538183A (en) * | 2015-12-09 | 2016-05-04 | 郑州磨料磨具磨削研究所有限公司 | Flexible polishing head and preparation method thereof |
| CN111283560A (en) * | 2020-03-20 | 2020-06-16 | 北京荣锋精密工具有限公司 | Superhard abrasive grinding wheel for grinding fingerprint identification lock substrate and preparation method thereof |
| CN111745555A (en) * | 2020-06-08 | 2020-10-09 | 3M材料技术(合肥)有限公司 | Polishing tool manufacturing system and polishing tool manufacturing method |
| CN111745555B (en) * | 2020-06-08 | 2022-04-26 | 3M材料技术(合肥)有限公司 | Polishing tool manufacturing system and polishing tool manufacturing method |
| CN112045500A (en) * | 2020-09-04 | 2020-12-08 | 江西昌河航空工业有限公司 | Polishing processing method of precision hole |
| CN112045500B (en) * | 2020-09-04 | 2022-10-11 | 江西昌河航空工业有限公司 | Polishing processing method of precision hole |
| CN115056080A (en) * | 2022-06-16 | 2022-09-16 | 长安大学 | Elastic grinding and polishing tool |
| CN115056080B (en) * | 2022-06-16 | 2023-10-10 | 长安大学 | Elastic grinding and polishing tool |
| CN115008356A (en) * | 2022-07-20 | 2022-09-06 | 华侨大学 | Preparation method of soft-hard composite structure thinning grinding wheel |
| CN115008356B (en) * | 2022-07-20 | 2023-05-05 | 华侨大学 | Preparation method of soft and hard composite structure thinning grinding wheel |
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Application publication date: 20151125 |
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