CN106695586A - Grinding tool - Google Patents
Grinding tool Download PDFInfo
- Publication number
- CN106695586A CN106695586A CN201610519141.3A CN201610519141A CN106695586A CN 106695586 A CN106695586 A CN 106695586A CN 201610519141 A CN201610519141 A CN 201610519141A CN 106695586 A CN106695586 A CN 106695586A
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- CN
- China
- Prior art keywords
- grinding tool
- grinding
- layer
- heat dissipating
- heat
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/009—Tools not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
Abstract
The invention relates to a grinding tool. The grinding tool is composed of a grinding layer and a heat dissipation layer which are integrally formed. Multiple heat dissipation blocks are arranged in the grinding layer, so that the cutting hardness of the grinding tool is ensured, meanwhile, a heat dissipation structure which comprises heat dissipation layers and the heat dissipation blocks and is capable of bringing out the heat produced in the working process of the grinding tool is additionally arranged, accordingly, the heat dissipation performance of the grinding tool is ensured, rapid heat dissipation is achieved in the grinding process, the cooling effect is ensured, cooling efficiency is improved, the good performance of the grinding tool is ensured, and the service life of the grinding tool is prolonged.
Description
Technical field
The present invention relates to one kind grinding work, more particularly to a kind of grinding tool for being ground to workpiece, polishing and being ground.
Background technology
Organic grinding tool refers to make bonding agent with organic molecular compound, and many abrasive particles are consolidated, and forms a kind of
With certain rigid grinding tool.Organic grinding tool includes doing resin abrasive tools made by bonding agent with natural and synthetic resin,
And the rubber grinding tool made by natural or synthetic gum cement.
Organic grinding tool is typically made up of abrasive material, organic bond and stomata.Wherein, the organic bond includes resin-bonded
Agent and gum cement.And polyurethane is a kind of common gum cement of common gum cement, it is a kind of very special
Different special material, with good operating characteristics, grinding tool can be just produced by hybrid reaction, and process costs are very cheap.
Meanwhile, polyurethane is also a kind of elastic extraordinary soft substance, and with good conjugation, adds its foaming energy having
Power, the loose structure formed on grinding tool can play good chip removal effect, can be with if coordinating Brown Alundum to be as abrasive material
Rare earth polishing abrasive tool is substituted to be polished glass.
But, because the heat resistance of polyurethane is very poor, its intensity can drastically decline with the rising of temperature.In grinding tool
During being ground to workpiece, because friction produces huge heat, very big shadow is necessarily caused in itself to grinding tool material
Ring, especially for the temperature tolerance difference such as resinoid bond, gum cement or polyurethane plastics binding agent grinder or its combination
Product causes tremendous influence --- and under the hot conditions that grinding process is produced, above-mentioned bonding agent easily produces softening, melts carbon
The change of the destruction structure such as change, directly results in the performance failure of grinding tool, and such as abrasive material comes off, sharpness declines, bonding agent softening is molten
Solution blocks stomata etc..
Therefore, it is to ensure the key that grinding tool can be used normally to solve the heat dissipation problem in the work of polyurethane grinding tool.
In many occasions, grinding tool can be cooled down using coolant.That is, during grinding tool use, adding water, emulsification
The coolants such as liquid, cooling oil.But, existing use the method to grinding tool cool down or there are problems that：
1) when coolant is cooled down, the cooling effect of the binding agent grinder to temperature tolerance less than 200 DEG C is undesirable；
In the environment big for Grinding Contact Area comparison 2) (contact surface is larger when such as cup emery wheel is ground) coolant is not
Working surface can be well entered into, causes cooling failure；
3) it is in itself the non-conductor of heat for combining agent material, causes its height that abrasive material is locally produced in grinding process
Temperature quickly cannot pass to form radiating effect at all, therefore high temperature for local up to 800 DEG C also can greatly shadow
The intermediate zone property to abrasive material and bonding agent is rung, abrasive material and bonding agent is drastically declined with reference to the bad grinding tool performance that directly results in.
The content of the invention
A kind of shortcoming and defect the invention aims to solve above-mentioned prior art, there is provided grinding tool, can be in mill
Quick heat radiating during cutting, it is ensured that cooling effect and raising cooling effectiveness, so as to ensure its own good performance and extend it
Service life.
To achieve these goals, the technical solution adopted by the present invention is as follows：A kind of grinding tool, it is by integrally formed grinding
Layer and heat dissipating layer composition, are provided with multiple radiating blocks in the grinding layer.
As a further improvement on the present invention, the multiple radiating block is arranged in parallel, and per adjacent two radiating block it
Between form an accelerated passage, heat dissipating layer is delivered to accelerated heat.
As a further improvement on the present invention, the width per the accelerated passage between adjacent two radiating block by grinding layer mill
Cut end to successively decrease successively toward the direction of heat dissipating layer, heat dissipating layer is delivered to accelerated heat.
As a further improvement on the present invention, each radiating block is by abrasive material, inserts, bonding agent, heat sink material, froth breaking
Agent, curing agent and stabilizer are made as main component, and the heat sink material of each radiating block accounts for the gross weight of its all material
Percentage is 5%~10%.
As a further improvement on the present invention, the grinding layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
As a further improvement on the present invention, the heat dissipating layer is with abrasive material, inserts, bonding agent, heat sink material, froth breaking
Agent, curing agent and stabilizer are made as main component, and heat sink material accounts for the hundred of the gross weight of its all material in the heat dissipating layer
Divide than being 30%~40%.
As a further improvement on the present invention, the heat sink material in the heat dissipating layer accounts for the percentage of the gross weight of its all material
Than the side that size is combined from heat dissipating layer with grinding layer 50% is gradually incremented to toward opposite side from 20%.
The heat dissipating layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
As a further improvement on the present invention, the heat sink material is high temperature heat sink material.
By above-mentioned technical proposal, grinding tool of the present invention has reached following beneficial effect：
1) while the cutting hardness of grinding tool is ensured, increased can make take the heat in the grinding tool course of work out of
Radiator structure --- heat dissipating layer and radiating block, thereby guarantee that the heat dispersion of grinding tool such that it is able to quickly dissipated in grinding process
Heat, it is ensured that cooling effect and raising cooling effectiveness, so as to ensure its own good performance and extend its service life；
2) by the restriction for being made component of the grinding layer heat dissipating layer to grinding tool, cooling effect and extension are further optimized
The service life of grinding tool.
In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Brief description of the drawings
Fig. 1 is the internal structure partial schematic diagram of the grinding layer of grinding tool of the present invention；
Fig. 2 is the partial schematic diagram after grinding layer internal structure is improved in Fig. 1；
Fig. 3 is the partial schematic diagram after grinding layer internal structure is improved in Fig. 2.
Specific embodiment
Fig. 1 is referred to, it is made up of the grinding tool that the present invention is provided integrally formed grinding layer and heat dissipating layer, the grinding layer
Multiple radiating blocks 11 are provided with 1.
Fig. 2 is referred to, is the transmission of accelerated heat, used as a kind of more excellent technical scheme, the multiple radiating block is mutual
11 are be arranged in parallel, and form an accelerated passage 12 between every adjacent two radiating block, and heat dissipating layer is delivered to accelerated heat.
Fig. 3 is referred to, it is preferable that be the transmission of accelerated heat, as a kind of more excellent technical scheme, per adjacent two radiatings
The width d of the accelerated passage 12 between block is successively decreased successively from the grinding end 13 of grinding layer toward the direction of heat dissipating layer, with accelerated heat
It is delivered to heat dissipating layer.
Be the intensity for ensureing thermal diffusivity and grinding layer, as a kind of more excellent technical scheme, each radiating block by abrasive material,
Inserts, bonding agent, heat sink material, defoamer, curing agent and stabilizer are made as main component, and each radiating block dissipate
The percentage that hot material accounts for the gross weight of its all material is 5%~10%.
Preferably, the grinding layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
The heat dissipating layer is using abrasive material, inserts, bonding agent, heat sink material, defoamer, curing agent and stabilizer as main
Composition is made, and the percentage that heat sink material accounts for the gross weight of its all material in the heat dissipating layer is 30%~40%.
Strengthen thermal diffusivity step by step while for proof strength, as a kind of more excellent technical scheme, in the heat dissipating layer
Heat sink material account for side that the percentage size of the gross weight of its all material combined from heat dissipating layer with grinding layer toward opposite side from
20% is gradually incremented to 50%.
Preferably, the heat dissipating layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
As a further improvement on the present invention, the heat sink material is high temperature heat sink material.
Further, the heat sink material of the side for being combined with grinding layer in the heat dissipating layer accounts for the gross weight of the side all material
Percentage is 20%~30%, and the percentage that the heat sink material of opposite side accounts for the gross weight of the side all material is 40%~50%.
Further, the grinding layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
The heat dissipating layer is made up of following components in percentage by weight：
The percentage by weight sum of above each component is 100%.
Used as a kind of more excellent technical scheme, being mixed with the inserts carries out the change of the endothermic reaction when grinding tool works
Compound.The compound be inorganic salt hydrate, and the inserts by account for its percentage by weight be 40%~50% it is inorganic
Salt hydrate and 50%~60% auxiliary material composition.
In the present embodiment, the polyol is preferably PEPA or PPG.What is used is poly-
The type that ester polyol or PPG are well known to the skilled person, its hydroxyl value is preferably 7000.The abrasive material
It is natural abrasive and manufactured abrasive, preferably in Brown Alundum, white fused alumina, single alundum, carborundum, cubic boron nitride, cerium oxide
One or more.If from Brown Alundum, the Brown Alundum preferred size be in 40#, 60#, 80#, 120# at least
It is a kind of.The catalyst is catalyst commonly used in the art, preferably amines catalyst.The stabilizer is commonly used in the art
Stabilizer, preferably organotin-carboxylate, particularly preferably di-n-butyltin dilaurate.The curing agent is commonly used in the art
Curing agent, particularly preferably 3,3 '-dichloro -4,4 '-diaminodiphenyl-methane.The defoamer is commonly used in the art
Defoamer, particularly preferably dimethicone.
Preferably, the heat sink material is high temperature heat sink material, particularly preferably 150~850 DEG C of heat sink material.
Hereinafter, the preparing raw material of grinding tool of the present invention is illustrated：
Example 1
The various raw materials of grinding tool are prepared according to formula as below preparation：
The various raw materials of 1-1, grinding tool grinding layer：
PEPA (hydroxyl value 7000)：200g,
Methyl diisocyanate：300g,
Dimethicone：11g,
3,3 '-two chloro- 4,4 '-diaminodiphenyl-methanes (MOCA)：4.5g,
Amines catalyst：2.15g,
Di-n-butyltin dilaurate：3 drops,
Pigment：103g,
Calcium sulphate dihydrate：84g,
Heat sink material：200g,
Brown Alundum：680g.
The various raw materials of 1-2, grinding tool heat dissipating layer：
PEPA (hydroxyl value 7000)：200g,
Methyl diisocyanate：300g,
Dimethicone：11g,
3,3 '-two chloro- 4,4 '-diaminodiphenyl-methanes (MOCA)：4.5g,
Amines catalyst：2.15g,
Di-n-butyltin dilaurate：3 drops,
Pigment：103g,
Calcium sulphate dihydrate：84g,
Heat sink material：400g,
Brown Alundum：480g.
Specific preparation process is as follows：
1) weighing：Each component is weighed according to above formula rate, pigment and calcium sulphate dihydrate are mixed by screen cloth twice
To be mixed into siccative compound standby with Brown Alundum and heat sink material stirring again after conjunction；MOCA is screened using preceding use 80# screen clothes, so
Afterwards by dimethicone, MOCA and di-n-butyltin dilaurate addition PEPA, methyl diisocyanate is added,
It is mixed with bonding agent compound；In the step, PEPA and methyl diisocyanate have to pass through filtering, to avoid material
Material conglomeration, if other materials not on the day of using having to pass through kept dry.Additionally, all of screening materials must all have filling
The Powder Particle Size and the uniformity of foot, it is not possible to have conglomeration and uneven thick point.
2) stir：Above-mentioned bonding agent compound is stirred 30~45 seconds in advance, siccative compound stirring 2 minutes is added, then
Start that amines catalyst is added dropwise, stirred 2.5~3 minutes after completion of dropping, stop stirring.In the whipping process, indoor temperature is protected
Hold and be less than 60% less than 23 DEG C, humidity.
3) reverse mould：Using preceding smearing release agent, releasing agent adds mould for Tissuemat E (molecular weight 2000) by kerosene
Heat of solution is into pasty state.Reverse mould requirement was completed in 1 minute, and reverse mould requirement surface of material is flat, and material is enough.By first after die-filling
Step reaction has a small amount of material to be extruded in the air in die venting.Each batch turning should be kept uniform during the reverse mould, and at once
It is die-filling.
Wherein, first time reverse mould：Dividing plate is put into the accommodation space of mould, two insulating spaces is formed, after agitated
The mixing material of the grinding tool heat dissipating layer for obtaining continues the wherein isolation in the radiating accommodation space for poured into after stirring is combined mould
Space；Then through 105 DEG C of vulcanization reactions 1 hour after, come out of the stove, be cooled to 40 DEG C.Then, second reverse mould is carried out：Dividing plate is past
The direction that the base substrate of formation is opposite is moved, and toward the mixing material a certain proportion of heat sink material of addition of grinding tool heat dissipating layer,
To increase the proportion of heat sink material, it is poured between dividing plate and the base substrate of formation after stirring fully afterwards；Then through 105 DEG C
After vulcanization reaction 1 hour, come out of the stove, be cooled to 40 DEG C, form the second layer of heat dissipating layer；Carry out third time reverse mould：Dividing plate is taken out,
And the mixing material toward grinding tool heat dissipating layer adds a certain proportion of heat sink material, to increase the proportion of heat sink material again, afterwards
It is poured between the second layer of the heat dissipating layer of dividing plate and formation after stirring fully；Then through 105 DEG C of vulcanization reactions 1 hour
Afterwards, come out of the stove, be cooled to 40 DEG C, form the base substrate of heat dissipating layer.No. the 4th reverse mould：After after the half-formed grinding tool curing, by mould
In dividing plate take out, and holding multiple pieces have certain thickness baffler in grinding layer accommodation space, thus polylith baffler
Part grinding layer accommodation space is divided into multiple spaces, and toward the multiple spaces in grinding layer accommodation space be directly injected into it is agitated after
Grinding tool grinding layer mixing material；Then through 105 DEG C of vulcanization reactions 1 hour after, come out of the stove, be cooled to 40 DEG C.Again, is carried out
No. five reverse moulds：Mixing material toward grinding layer adds a certain proportion of heat sink material, takes out baffler after stirring fully, toward resistance
The grinding layer mixing material that the space that dividing plate is formed is poured into after adding heat sink material.
4) preliminary vulcanization and the demoulding：100 DEG C of vulcanization reactions are come out of the stove after 1 hour, are cooled to 40 DEG C, the demoulding；During the demoulding, institute
The grinding tool to be manufactured is shaped, it is desirable to which the base substrate after the demoulding can not be deformed and dropped off.
5) after 85~100 DEG C of 8~16h of cooked at constant, with polyurethane varnish by surface smear, surface is smeared uniformly, no
Just enter subsequent processing after having place that is blocked up or not being applied to, it is necessary to stand fully solidification.Solidification is polished after drying
Shaping, makes upper and lower two end faces reach flatness and thickness requirement.
Example 2
Prepare each raw material for preparing grinding tool according to formula as below：
The various raw materials of 2-1, grinding tool grinding layer：
PEPA (hydroxyl value 7000)：220g,
Methyl diisocyanate：350g,
Dimethicone：11g,
3,3 '-two chloro- 4,4 '-diaminodiphenyl-methanes (MOCA)：4.5g,
Amines catalyst：2.15g,
Di-n-butyltin dilaurate：4 drops,
Pigment：90g,
Calcium sulphate dihydrate：60g,
Heat sink material：220g,
Brown Alundum：620g.
The various raw materials of 2-2, grinding tool heat dissipating layer：
PEPA (hydroxyl value 7000)：220g,
Methyl diisocyanate：350g,
Dimethicone：11g,
3,3 '-two chloro- 4,4 '-diaminodiphenyl-methanes (MOCA)：4.5g,
Amines catalyst：2.15g,
Di-n-butyltin dilaurate：4 drops,
Pigment：90g,
Calcium sulphate dihydrate：60g,
Heat sink material：350g,
Brown Alundum：400g.
Specific preparation process and points for attention are same as Example 1.
Relative to prior art, while the cutting hardness of grinding tool is ensured, increased can make to grind grinding tool of the present invention
The heat sink material that heat in the tool course of work is taken out of, thereby guarantees that the heat dispersion of grinding tool such that it is able in grinding process
Quick heat radiating, it is ensured that cooling effect and raising cooling effectiveness, so as to ensure its own good performance and extend its service life.
The invention is not limited in above-mentioned implementation method, if not departing from the present invention to various changes of the invention or deformation
Spirit and scope, if these are changed and within the scope of deformation belongs to claim of the invention and equivalent technologies, then this hair
It is bright to be also intended to comprising these changes and deform.
Claims (9)
1. a kind of grinding tool, it is characterised in that：The grinding tool is made up of integrally formed grinding layer and heat dissipating layer, is set in the grinding layer
There are multiple radiating blocks.
2. grinding tool according to claim 1, it is characterised in that：The multiple radiating block is arranged in parallel, and per adjacent
An accelerated passage is formed between two radiating blocks, heat dissipating layer is delivered to accelerated heat.
3. grinding tool according to claim 2, it is characterised in that：Width per the accelerated passage between adjacent two radiating block by
The grinding end of grinding layer is successively decreased successively toward the direction of heat dissipating layer, and heat dissipating layer is delivered to accelerated heat.
4. the grinding tool according to any one of claims 1 to 3, it is characterised in that：Each radiating block by abrasive material, inserts,
Bonding agent, heat sink material, defoamer, curing agent and stabilizer are made as main component, and each radiating block heat sink material
The percentage for accounting for the gross weight of its all material is 5%~10%.
5. grinding tool according to claim 4, its feature as：The grinding layer is by following components in percentage by weight system
Into：
6. grinding tool according to claim 1, it is characterised in that：The heat dissipating layer is with abrasive material, inserts, bonding agent, radiating
Material, defoamer, curing agent and stabilizer are made as main component, and heat sink material accounts for its all material in the heat dissipating layer
The percentage of gross weight is 30%~40%.
7. grinding tool according to claim 6, it is characterised in that：Heat sink material in the heat dissipating layer accounts for its all material
The side that the percentage size of gross weight is combined from heat dissipating layer with grinding layer is gradually incremented to 50% toward opposite side from 20%.
8. grinding tool according to claim 7, it is characterised in that：The heat dissipating layer is by following components in percentage by weight system
Into：
9. the grinding tool according to any one of claim 5~8, it is characterised in that：The heat sink material is high temperature heat sink material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519141.3A CN106695586B (en) | 2016-07-01 | 2016-07-01 | A kind of grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519141.3A CN106695586B (en) | 2016-07-01 | 2016-07-01 | A kind of grinding tool |
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| Publication Number | Publication Date |
|---|---|
| CN106695586A true CN106695586A (en) | 2017-05-24 |
| CN106695586B CN106695586B (en) | 2019-05-21 |
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| CN201610519141.3A Active CN106695586B (en) | 2016-07-01 | 2016-07-01 | A kind of grinding tool |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013166087A1 (en) * | 2012-05-01 | 2013-11-07 | Baker Hughes Incorporated | Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods |
| CN103481208A (en) * | 2012-06-13 | 2014-01-01 | 台山市兰宝磨具有限公司 | Grinding tool and preparation method thereof |
| CN103962978A (en) * | 2014-05-05 | 2014-08-06 | 田继华 | Grinding wheel manufacturing method |
| CN204935414U (en) * | 2015-09-06 | 2016-01-06 | 江西省定海砂轮有限公司 | Resistance to heavy load corase grind resin wheel |
| CN105437093A (en) * | 2016-01-07 | 2016-03-30 | 河北工业大学 | Fan heat dissipation type grinding wheel |
| CN205310085U (en) * | 2016-01-07 | 2016-06-15 | 河北工业大学 | Cooling fan formula emery wheel |
-
2016
- 2016-07-01 CN CN201610519141.3A patent/CN106695586B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013166087A1 (en) * | 2012-05-01 | 2013-11-07 | Baker Hughes Incorporated | Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods |
| CN103481208A (en) * | 2012-06-13 | 2014-01-01 | 台山市兰宝磨具有限公司 | Grinding tool and preparation method thereof |
| CN103962978A (en) * | 2014-05-05 | 2014-08-06 | 田继华 | Grinding wheel manufacturing method |
| CN204935414U (en) * | 2015-09-06 | 2016-01-06 | 江西省定海砂轮有限公司 | Resistance to heavy load corase grind resin wheel |
| CN105437093A (en) * | 2016-01-07 | 2016-03-30 | 河北工业大学 | Fan heat dissipation type grinding wheel |
| CN205310085U (en) * | 2016-01-07 | 2016-06-15 | 河北工业大学 | Cooling fan formula emery wheel |
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| CN106695586B (en) | 2019-05-21 |
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