CN105062008A - Plane millstone filling system with self-sharpening function - Google Patents
Plane millstone filling system with self-sharpening function Download PDFInfo
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- CN105062008A CN105062008A CN201510555491.0A CN201510555491A CN105062008A CN 105062008 A CN105062008 A CN 105062008A CN 201510555491 A CN201510555491 A CN 201510555491A CN 105062008 A CN105062008 A CN 105062008A
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Abstract
The invention discloses a plane millstone filling system with a self-sharpening function. The plane millstone filling system is prepared from the following raw materials: epoxy resin, a curing agent, microcrystal fused alumina, chromium sesquioxide and absolute ethyl alcohol. An inorganic abrasive material in a filled layer has a micro-crushing function and can be automatically crushed during passivation in the milling process to generate a novel milling cutting edge, so that the self-sharpening performance of the filled layer is improved. When the plane millstone filling system is used for filling a gap of a plane millstone, the preparation process is simple, no special recruitments for raw materials are required, the leveling property is good during filling, and a filler can be in favorable contact with an abrasive block; the filled plane millstone is favorable in heat radiating capability, strength and rigidity, capable of favorably solving the problem of scrap and workpiece burning in the existing milling process, prolonging the finishing intervals and further increasing the milling efficiency and suitable for industrial production and application.
Description
Technical field
The present invention relates to mill infill system, be specifically related to a kind of plane mill infill system had from sharp function, belong to grinding parts preparing technical field.
Background technology
Along with the development of science and technology, numerical control ultra-precision grinding machine, high-speed, high precision crankshaft grinding machine and camshaft grinding machine, all kinds of high-precision high-speed special purpose grinders etc., become one of field that China gives priority to, and the raising of working (machining) efficiency is the important directions of numerically control grinder field development, require that the cutting force of emery wheel is good, sharp; Require that again the shape-holding property of emery wheel is good, processing can be continued; Require simultaneously emery wheel can Nai Gaore, resistance to brute force extruding.
Double-ended grinding machine is a kind of high efficiency plane machining lathe, and it can process two and have the parallel end faces that dimensional precision is high and surfaceness is good in rountrip.Machinery Tool Automation degree is high, within general one hour, can process thousands of workpiece, be widely used in the industries such as compressor, bearing, magneticsubstance.The machinable workpiece size of double-ended grinding machine is generally Ф 10-150mm, thickness 3-60mm.
Plane mill is the core component of double-ended grinding machine, and diameter is generally at 500-1200mm, and according to the difference of bonding agent used, both-end mill can be divided into ceramic bond, metallic bond and resinoid bond both-end mill.Ceramic bond grinding disc with double end faces is all generally that the mode adopting knobble or regular hexagon block abrading block to be bonded in above metallic matrix is made, certain gap is there is between little abrading block, if for processing undersized workpiece (diameter is less than 40mm), gap then between abrading block must be filled, if do not fill the collision easily caused between workpiece and abrading block.The material that current filling both-end mill uses is all generally pure epoxy resin, pure epoxy resin is filled in the sharpness that can reduce mill to a certain extent, make mill to go out sword performance bad, grinding efficiency is not high, the surface damage problems such as the sticky bits of easy generation mill or burned work-surface, affect the processing quality of workpiece, the currying work of mill, every also shorter, needs frequently to repair mill.
Therefore, the infill system that necessary exploitation is new, in order to fill the gap between flat stone mill mill block, this infill system needs to have excellent grinding performance, also to have good cementability, prevent from coming off in high-speed grinding process, also need satisfied certain heat resistant requirements simultaneously, avoid high-speed grinding to be heated and cause filling position softening and the bad phenomenon such as sticky bits occur.
Summary of the invention
The object of this invention is to provide a kind of infill system for filling gap between flat stone mill mill block, it can improve plane mill packing layer sharpness and have from sharp function, use this filling formulation significantly can improve the plane mill sharpness needing filling, reduce the generation of sticky bits and workpiece burn problem in grinding process, promote currying work every, thus improve grinding efficiency.
For achieving the above object, the concrete technical scheme of the present invention is: a kind of plane mill infill system had from sharp function, is made up of the raw material of following volume percent:
Epoxy resin 40 ~ 70%
Amine curing agent 4 ~ 7%
Microcrystal fused alumina 15 ~ 40%
Chromium sesquioxide 1 ~ 10%
Dehydrated alcohol 5 ~ 15%
The oxirane value of described epoxy resin is 0.44 ~ 0.56, is preferably 0.55 ~ 0.56;
The particle diameter of described microcrystal fused alumina is 20 ~ 80 μm, is preferably 30 ~ 40 μm; Shape is non-equivalance shape, and length-to-diameter ratio is 1.5 ~ 2.0.
The present invention adopts the microcrystal fused alumina of non-equivalance shape, its area of all is not identical, and limiting length-to-diameter ratio is 1.5 ~ 2.0, is applied in epoxy-resin systems, is uniformly dispersed in resin, wetting property is good, aggregation phenomenon is few, can be promoted the solidification of resin by particle surface effect, can not produce simultaneously destroy resin crosslinked structure, the curing performance of maximum raising resin, ensures the weighting material thermal characteristics after solidification, mechanical property, excellent in adhesion.More importantly coordinate with other fillers in infill system or organism, make to play interfacial effect between each component, reach synergy, avoid the incompatible defect bringing overall performance to decline of a certain component.
In technique scheme, described epoxy resin is glycidyl ether type epoxy resin.Resin is the major embodiment person of infill system performance, it not only plays the fundamental property such as bonding, heat-resisting, wear-resisting of self, the consistency of all components in more importantly coordination system, resin system composition of the present invention rationally, the oxirane value of epoxy resin is 0.44 ~ 0.56, is preferably 0.55 ~ 0.56, and curing reaction cross-linking density that is fast and solidifying agent is high, be conducive to the curing performance improving infill system, there is excellent thermotolerance and cementability; Coordinate with solidifying agent, filler with the epoxy resin of functional group by adopting reasonable oxirane value, avoid material fragility is large, sticking power is low defect after the solidification of existing resin system, also overcome after existing epoxy resin and solidifying agent conbined usage solidify wear no resistance, the problem of sharpness difference.
In technique scheme, described chromium sesquioxide is abrasive material level chromic oxide, and particle diameter is 300 order ~ 700 orders, preferably 400 order ~ 600 orders.Chromium sesquioxide can improve the surface smoothness of grinding workpiece, promotes grinding quality; In addition, also add the mixing of resin system and filler, be conducive to each component and be uniformly distributed.
In preferred technical scheme, described amine curing agent is quadrol.Amine curing agent is the Common Curing Agents of epoxy-resin systems, kind is a lot, the formula that itself and epoxy resin form is innumerable especially, be applied to the aspects such as coating, sizing agent, composition board, but the selection of different compositions, different ratio of functional groups and polymer molecular structure all can have an impact to the solidification effect of Epoxy-amine System, thus such system is served many purposes, the present invention adopts quadrol and glycidyl ether type epoxy resin combination, reactive behavior is good, the introducing of polarity amido makes the dipole-dipole interaction of amine and epoxy resin strengthen, both consistencies are improved, oxirane value is adopted to be 0.44 ~ 0.56, ensure epoxide group on epoxy molecule chain open and reasonable with the reaction of amido, Epoxy resin chain extension is reacted can carry out in room temperature, simultaneously ensure epoxy resin and amine curing cross-linked effective, to improve the heat-resisting of infill system, wear resisting property, also avoid easily fast forming dope and being polymerized too fast and causing the defect of condensate performance difference of existing existence.
In preferred technical scheme, described in there is plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin 50 ~ 55%
Amine curing agent 4 ~ 6%
Microcrystal fused alumina 28 ~ 33%
Chromium sesquioxide 2 ~ 4%
Dehydrated alcohol 6 ~ 10%.
Further in preferred technical scheme, described in there is plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin 54%
Amine curing agent 5%
Microcrystal fused alumina 30%
Chromium sesquioxide 3%
Dehydrated alcohol 8%.
The invention also discloses the above-mentioned preparation method with plane mill infill system from sharp function, comprise the following steps: successively epoxy resin, microcrystal fused alumina, chromium sesquioxide, dehydrated alcohol are inserted in blender, add solidifying agent after premix is even and obtain that there is the plane mill infill system from sharp function.
In technique scheme, when adding solidifying agent, stir while adding, until mix.
Rationally, inorganics is dispersed in organic system above-mentioned infill system composition, by resin homogeneous immersion, and the stress defect avoiding inorganics to gather bringing; Resin filling, good leveling property, curing performance is good, can not produce cure shrinkage, effectively ensures the contact area at infill system and flat stone mill mill block interface, promotes interfacial effect, increases the adhesive effect of weighting material and abrading block; Solidification value is low, the time is short, and state of cure is high; Have micro-crushing function, mineral filler can produce new grinding cutting edge by automatic pulverizing during passivation in the process of grinding, significantly can promote the self-sharpening energy of mill packing layer, ensures mill packing layer sharpness and processing work quality.Therefore the invention also discloses above-mentioned have preparing the application in flat stone mill mill block gap weighting material from the plane mill infill system of sharp function, the plane mill infill system had from sharp function is poured in the abrading block gap of plane mill, drawout; Then in self-vulcanizing 12 ~ 36 hours, the filling of flat stone mill mill block gap is namely completed.Firmly be bonded between flat stone mill mill block after infill system solidification of the present invention, form flat stone mill mill block gap weighting material, gap between effective filling abrading block, significantly improve the plane mill sharpness needing to fill, reduce the generation of sticky bits and workpiece burn problem in grinding process, promote currying work every, thus improve grinding efficiency.
In technique scheme, with scraping tablet by infill system drawout.
Due to the application of such scheme, the present invention compared with prior art has the following advantages:
1, the present invention makes public for the first time a kind of plane mill infill system had from sharp function, and rationally, organic-inorganic phase consistency is good for composition; Both the sharpness having improved plane mill is good, the characteristic that self-sharpening is good, has again that cementability is good, wear resistance is good, the advantage of good heat resistance, meets the service requirements of double-ended grinding machine plane mill.
2, when the infill system that the present invention is first public is applied as flat stone mill mill block packing material, solidification value is low, general self-vulcanizing, and set time is short, spends the night to place namely to complete solidification; Particularly solidify after fixing degree high, in system, macromolecular chain entanglement density is high, and cross-linking set is evenly distributed, and ensure that the thermotolerance of weighting material, wear resistance; Overcome the existing weighting material easily sticky defect of considering to be worth doing, causing burned work-surface.
3, infill system organic constituent configuration disclosed by the invention rationally, except ensureing the reactivity of resin and solidifying agent, organic functional group such as epoxide group, amino group can with inorganic materials generation interfacial effect in system, avoid the boundary defect of organic-inorganic hybrid material routine, obdurability and thermotolerance are provided, methene chain gives flexibility, and ehter bond gives chemical proofing, and hydroxyl gives reactive and cementability; Reactive functionality simultaneously in system can produce stronger chemical interactions with flat stone mill mill block surface hydroxyl etc., ensure that the cementability of infill system, overcomes existing weighting material caducous defect in high-speed grinding process.
4, in infill system disclosed by the invention, inorganic materials can be uniformly dispersed in organic system, without aggregation phenomenon, avoids the problem of the system overall performance decline caused due to the existence of defect point; Have micro-crushing function, mineral filler can produce new grinding cutting edge by automatic pulverizing during passivation in the process of grinding, significantly can promote the self-sharpening energy of mill packing layer, ensures mill packing layer sharpness and processing work quality; Overcome the defect that existing weighting material reduces plane mill sharpness.
5, the chromium sesquioxide in infill system disclosed in this invention can improve the surface smoothness of grinding workpiece, promotes grinding quality; In addition, also add the mixing of resin system and filler, be conducive to each component and be uniformly distributed.
6, preparation technology when infill system disclosed in this invention is for filling plane abrasive disk space is simple, and raw material is without particular requirement, and good leveling property during filling, cure shrinkage are little, are conducive to the contact of weighting material and abrading block; Plane mill after filling has good heat-sinking capability, good strength and stiffness, well to solve in existing grinding process the problem of sticky bits and workpiece burn, promote currying work every, thus improve grinding efficiency; Be suitable for suitability for industrialized production and application.
Accompanying drawing explanation
Fig. 1 is the workpiece comparison diagram that embodiment one processes with comparative example one;
Fig. 2 be embodiment two with comparative example two grinding after (before finishing) packing layer comparison diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment one
There is the plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin E5454%
Quadrol 5%
Microcrystal fused alumina 30%
Chromium sesquioxide 3%
Dehydrated alcohol 8%
The particle diameter of above-mentioned microcrystal fused alumina is 30 ~ 40 μm; Shape is non-equivalance shape, and length-to-diameter ratio is 1.5 ~ 2.0; The particle diameter of chromium sesquioxide is 70 ~ 90 μm.
Above-mentioned infill system is used for the filling of plane mill, and step is as follows:
The first step, batch mixing, be placed in glassware by epoxy resin, microcrystal fused alumina, chromium sesquioxide, dehydrated alcohol successively by above-mentioned volume percent, and slowly add curing agent ethylene diamine after premix is even, limit edged stirs, until mix;
Second step, casting, pour in the gap of mill (the ceramic CBN of Ф 720), with scraping tablet by stopping composition drawout by the plane mill infill system mixed;
3rd step, solidification, self-vulcanizing 36 hours.
The Ф 720 ceramic CBN plane mill processing compressor sliding blade performance data using above-mentioned plane mill infill system to prepare is in table 1.
Embodiment two
There is the plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin E5150%
Quadrol 6%
Microcrystal fused alumina 28%
Chromium sesquioxide 4%
Dehydrated alcohol 10%
The particle diameter of described microcrystal fused alumina is 30 ~ 40 μm; Shape is non-equivalance shape, and length-to-diameter ratio is 1.5 ~ 2.0; The particle diameter of chromium sesquioxide is 70 ~ 90 μm.
By the method for embodiment one, use above-mentioned infill system self-vulcanizing 24 hours preparation Ф 1020 ceramic metal hard rock plane mills, processing rigid alloy knife graininess can in table 1.
Embodiment three
There is the plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin E4440%
Quadrol 4%
Microcrystal fused alumina 40%
Chromium sesquioxide 10%
Dehydrated alcohol 6%
The particle diameter of described microcrystal fused alumina is 20 ~ 80 μm; Shape is non-equivalance shape, and length-to-diameter ratio is the particle diameter of 1.5 ~ 2.0 chromium sesquioxides is 70 ~ 90 μm.
By the method for embodiment one, use above-mentioned infill system self-vulcanizing 12 hours preparation Ф 840 ceramic metal hard rock plane mills, processing rigid alloy knife graininess can in table 1.
Embodiment four
There is the plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin F5170%
Quadrol 7%
Microcrystal fused alumina 15%
Chromium sesquioxide 1%
Dehydrated alcohol 7%
The particle diameter of described microcrystal fused alumina is 20 ~ 80 μm; Shape is non-equivalance shape, and length-to-diameter ratio is 1.5 ~ 2.0; The particle diameter of chromium sesquioxide is 50 ~ 100 μm.
By the method for embodiment one, use above-mentioned infill system self-vulcanizing 24 hours preparation Ф 700 ceramic metal hard rock plane mills, processing compressor disk (HT250) performance is in table 1.
Comparative example one
Plane mill infill system by volume percent be 1: 0.11 epoxy resin E54 and quadrol form, by the method for embodiment one, use above-mentioned infill system self-vulcanizing 36 hours preparation Ф 1020 ceramic metal hard rock plane mills, processing rigid alloy knife graininess can in table 1.
Comparative example two
Epoxy resin E20, quadrol, microcrystal fused alumina and dehydrated alcohol that plane mill infill system is 1: 0.1: 0.8: 0.2 by volume percent form, by the method for embodiment one, use above-mentioned infill system self-vulcanizing 36 hours preparation Ф 700 ceramic metal hard rock plane mills, processing compressor disk (HT250) performance is in table 1.
Table 1 embodiment and comparative example performance data
| Process period | Finishing frequency | Grinding force | Burn situation | |
| Comparative example one | 120-150s | < 10 coil/repair | 0.5MPa | Workpiece burn |
| Comparative example two | 110-130s | 15 coil/repair | 0.45MPa | Part workpiece burn |
| Embodiment one | 60-90s | 50-70 dish/repair | 0.3MPa | Without burn |
| Embodiment two | 70-95s | 50-60 dish/repair | 0.3MPa | Without burn |
| Embodiment three | 85-100s | 30-40 dish/repair | 0.25MPa | Without burn |
| Embodiment four | 80-95s | 40-50 dish/repair | 0.4MPa | Without burn |
Test above-mentioned complex body mesentery sticking power, embodiment is all 5B, and comparative example is 4B.
Test the heat-drawn wire of above-mentioned cured article, the heat-drawn wire of embodiment one to four, comparative example one, two cured article is 210 DEG C, 204 DEG C, 207 DEG C, 201 DEG C, 206 DEG C, 154 DEG C, 168 DEG C.
Accompanying drawing 1 is the workpiece comparison diagram that embodiment one processes with comparative example one, can find out, the workpiece of mill processing prepared by embodiment one infill system is without burn, and comparative example one workpiece has burn.
Accompanying drawing 2 are embodiments two with comparative example two grinding after (before finishing) packing layer comparison diagram, can find out, embodiment two packing layer is without sticky bits, and comparative example two packing layer has sticky bits.
Claims (10)
1. there is the plane mill infill system from sharp function, it is characterized in that, be made up of the raw material of following volume percent:
Epoxy resin 40 ~ 70%
Amine curing agent 4 ~ 7%
Microcrystal fused alumina 15 ~ 40%
Chromium sesquioxide 1 ~ 10%
Dehydrated alcohol 5 ~ 15%
The oxirane value of described epoxy resin is 0.44 ~ 0.56;
The particle diameter of described microcrystal fused alumina is 20 ~ 80 μm, and shape is non-equivalance shape, and length-to-diameter ratio is 1.5 ~ 2.0;
The particle diameter of described chromium sesquioxide is 300 order ~ 700 orders.
2. there is plane mill infill system from sharp function according to claim 1, it is characterized in that: described epoxy resin is glycidyl ether type epoxy resin.
3. there is plane mill infill system from sharp function according to claim 1, it is characterized in that: described solidifying agent is quadrol.
4. there is plane mill infill system from sharp function according to claim 1, it is characterized in that: the oxirane value of described epoxy resin is 0.55 ~ 0.56; The particle diameter of described microcrystal fused alumina is 30 ~ 40 μm; The particle diameter of described chromium sesquioxide is 400 order ~ 600 orders.
5. there is plane mill infill system from sharp function according to claim 1, it is characterized in that: described in there is plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin 50 ~ 55%
Amine curing agent 4 ~ 6%
Microcrystal fused alumina 28 ~ 33%
Chromium sesquioxide 2 ~ 4%
Dehydrated alcohol 6 ~ 10%.
6. there is plane mill infill system from sharp function according to claim 5, it is characterized in that: described in there is plane mill infill system from sharp function, be made up of the raw material of following volume percent:
Epoxy resin 54%
Amine curing agent 5%
Microcrystal fused alumina 30%
Chromium sesquioxide 3%
Dehydrated alcohol 8%.
7. described in claim 1 ~ 6, any one has the preparation method of the plane mill infill system from sharp function, it is characterized in that, comprise the following steps: successively epoxy resin, microcrystal fused alumina, chromium sesquioxide, dehydrated alcohol are placed in blender, add solidifying agent after premix is even and obtain infill system.
8. there is the preparation method of the plane mill infill system from sharp function according to claim 7, it is characterized in that: when adding solidifying agent, stir while adding, until mix.
9. described in claim 1 ~ 6, any one has and is preparing the application in flat stone mill mill block gap weighting material from the plane mill infill system of sharp function.
10. apply according to claim 9, it is characterized in that, comprise the following steps: the plane mill infill system had from sharp function is poured in the abrading block gap of plane mill, drawout; Then self-vulcanizing 12 ~ 36 hours, namely obtains flat stone mill mill block gap weighting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510555491.0A CN105062008B (en) | 2015-09-02 | 2015-09-02 | A kind of plane mill obturator system with from sharp function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510555491.0A CN105062008B (en) | 2015-09-02 | 2015-09-02 | A kind of plane mill obturator system with from sharp function |
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| CN105062008A true CN105062008A (en) | 2015-11-18 |
| CN105062008B CN105062008B (en) | 2017-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048093A (en) * | 2020-09-16 | 2020-12-08 | 上海拓毕新材料科技有限公司 | Polishing film with self-sharpening grinding coating and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62130179A (en) * | 1985-11-29 | 1987-06-12 | Fujimi Kenmazai Kogyo Kk | Composition for grinding |
| CN1299731A (en) * | 2001-01-05 | 2001-06-20 | 华南理工大学 | Granite polishing apparatus and its manufacture |
| CN102756341A (en) * | 2012-07-24 | 2012-10-31 | 苏州赛力精密工具有限公司 | Method for preparing grinding wheel sharpener ingredient |
| CN202684767U (en) * | 2012-07-24 | 2013-01-23 | 苏州赛力精密工具有限公司 | Planar grinding disc |
-
2015
- 2015-09-02 CN CN201510555491.0A patent/CN105062008B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62130179A (en) * | 1985-11-29 | 1987-06-12 | Fujimi Kenmazai Kogyo Kk | Composition for grinding |
| CN1299731A (en) * | 2001-01-05 | 2001-06-20 | 华南理工大学 | Granite polishing apparatus and its manufacture |
| CN102756341A (en) * | 2012-07-24 | 2012-10-31 | 苏州赛力精密工具有限公司 | Method for preparing grinding wheel sharpener ingredient |
| CN202684767U (en) * | 2012-07-24 | 2013-01-23 | 苏州赛力精密工具有限公司 | Planar grinding disc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048093A (en) * | 2020-09-16 | 2020-12-08 | 上海拓毕新材料科技有限公司 | Polishing film with self-sharpening grinding coating and preparation method |
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