CN106607772B - Grinding tool - Google Patents
Grinding tool Download PDFInfo
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- CN106607772B CN106607772B CN201610519143.2A CN201610519143A CN106607772B CN 106607772 B CN106607772 B CN 106607772B CN 201610519143 A CN201610519143 A CN 201610519143A CN 106607772 B CN106607772 B CN 106607772B
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- Prior art keywords
- grinding
- grinding tool
- heat sink
- layer
- percentage
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Classifications
-
- 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
-
- 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
Abstract
The present invention relates to a kind of grinding tools, are made of abrasive material, organic bond and stomata, and using abrasive material, filler material, bonding agent, defoaming agent, curing agent and stabilizer as main component.Heat sink material is mixed in the abrasive material.Thus the present invention is while guaranteeing the cutting hardness of grinding tool, increase the heat sink material that can make to take the heat in the grinding tool course of work out of, thereby guarantee that the heat dissipation performance of grinding tool, so as to the rapid cooling in grinding process, guarantee cooling effect and improve cooling efficiency, to guarantee its own good performance and prolong its service life.
Description
Technical field
The present invention relates to the grinding tools that a kind of grinding work, in particular to a kind of pair of workpiece are ground, polished and is ground.
Background technique
Organic grinding tool, which refers to, makees bonding agent with organic molecular compound, and many abrasive grains are consolidated, one kind is formed
With certain rigid grinding tool.Organic grinding tool includes doing resin abrasive tools made by bonding agent with natural and synthetic resin,
And rubber grinding tool made by natural or synthetic gum cement.
Organic grinding tool is generally made of abrasive material, organic bond and stomata.Wherein, which includes resin-bonded
Agent and gum cement.And polyurethane is a kind of gum cement that common gum cement is common, is a kind of very special
Different special material has good operating characteristics, can produce grinding tool by hybrid reaction, process costs are very cheap.
Meanwhile polyurethane is also a kind of extraordinary soft substance of elasticity, and has good conjugation, in addition its foaming energy for having
Power, the porous structure formed on grinding tool can play the role of good chip removal, if cooperation Brown Alundum can as abrasive material
Substitution rare earth polishing abrasive tool polishes glass.
But since the heat resistance of polyurethane is very poor, intensity can decline as the temperature rises and sharply.In grinding tool
During being ground to workpiece, since friction generates huge heat, very big shadow is necessarily caused to grinding tool material itself
It rings, especially for the temperature tolerances 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 generates, above-mentioned bonding agent is easy to produce softening, melts carbon
Change etc. destroys the variation of structure, directly results in the performance failure of grinding tool, as abrasive material falls off, sharpness declines, bonding agent softening is molten
Solution blocking stomata etc..
Therefore, solving the heat dissipation problem in the work of polyurethane grinding tool is to guarantee that grinding tool is capable of a key of normal use.
In in many occasions, it will use coolant liquid and grinding tool cooled down.That is, water, emulsification is added in grinding tool use process
The coolant liquids such as liquid, cooling oil.But existing use this method, which carries out cooling to grinding tool, still has some problems:
1) it is undesirable lower than the cooling effect of 200 DEG C of binding agent grinder to temperature tolerance when coolant liquid is cooling；
In environment biggish for Grinding Contact area ratio 2) (contact surface is larger when such as cup emery wheel is ground) coolant liquid is not
Working surface can be entered well, lead to cooling failure；
3) for being hot non-conductor, the height for causing its abrasive material in grinding process locally to generate in conjunction with agent material itself
Temperature quickly cannot pass to form heat dissipation effect at all, therefore also can greatly shadow for the high temperature of up to 800 DEG C of part
The intermediate zone property for arriving abrasive material and bonding agent is rung, makes abrasive material and bonding agent that the bad grinding tool performance that directly results in be combined sharply to decline.
Summary of the invention
The shortcomings that the purpose of the present invention is to solve the above-mentioned prior arts and deficiency provide a kind of grinding tool, can grind
Rapid cooling during cutting guarantees cooling effect and improves cooling efficiency, to guarantee its own good performance and extend it
Service life.
To achieve the goals above, The technical solution adopted by the invention is as follows: a kind of grinding tool, by abrasive material, organic bond
It is constituted with stomata, and using abrasive material, filler material, bonding agent, defoaming agent, curing agent and stabilizer as main component；Its feature exists
In: in the abrasive material it is mixed with heat sink material.
As a further improvement of the present invention, which is in turn divided into grinding layer and heat dissipation from one side toward its other side
Layer；
The grinding layer is using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as mainly
Ingredient is made, and it is 10%~15% that the heat sink material in the grinding layer, which accounts for the percentage of its all material gross weight,；
The heat dissipating layer is using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as mainly
Ingredient is made, and it is 30%~40% that heat sink material, which accounts for the percentage of the gross weight of its all material, in the heat dissipating layer.
As a further improvement of the present invention, the heat sink material of the side in the heat dissipating layer in conjunction with grinding layer accounts for the side
The percentage of the gross weight of all material is 20%~30%, and the heat sink material of the other side accounts for the percentage of the gross weight of the side all material
Than being 40%~50%.
As a further improvement of the present invention, the grinding layer is made of following components in percentage by weight:
The sum of weight percent of the above components is 100%.
As a further improvement of the present invention, the heat dissipating layer is made of following components in percentage by weight:
The sum of weight percent of the above components is 100%.
As a further improvement of the present invention, the heat sink material is high temperature heat sink material.
As a further improvement of the present invention, the change that the endothermic reaction is carried out in grinding tool work is mixed in the filler material
Close object.
As a further improvement of the present invention, the compound is inorganic salt hydrate and the filler material by Zhan Qichong
Percentage is measured as 40%~50% inorganic salt hydrate and 50%~60% auxiliary material composition.
Through the above technical solutions, grinding tool of the present invention reached it is following the utility model has the advantages that
1) while guaranteeing the cutting hardness of grinding tool, increasing can make to take out of the heat in the grinding tool course of work
Heat sink material thereby guarantees that the heat dissipation performance of grinding tool, so as to the rapid cooling in grinding process, guarantees cooling effect and mentions
High cooling efficiency, to guarantee its own good performance and prolong its service life；
2) by the way that grinding tool is divided into grinding layer and heat dissipating layer, guarantee it while further ensuring the grinding hardness of grinding tool
Heat dissipation performance further improves the radiating efficiency in the grinding tool course of work, optimizes cooling effect, is conducive to extend making for grinding tool
Use the service life；
3) by the restriction that component is made of the grinding layer heat dissipating layer to grinding tool, cooling effect and extension have been advanced optimized
The service life of grinding tool；
4) by being mixed into inorganic salt hydrate in filler material, filler material is improved, is conducive to advanced optimize
Heat dissipation effect in stomata, to advanced optimize cooling effect and extend the service life of grinding tool.
Specific embodiment
Grinding tool provided by the invention is made of abrasive material, organic bond and stomata, and with abrasive material, filler material, bonding agent, disappear
Infusion, curing agent and stabilizer are as main component.Also, the present invention is mixed with heat sink material in the abrasive material.
Specifically, grinding tool of the present invention is in turn divided into grinding layer and heat dissipating layer from one side toward its other side.The grinding
Layer is made using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as main component, and the mill
Cutting the heat sink material in layer and accounting for the percentage of its all material gross weight be the percentage of its gross weight is 10%~15%.The heat dissipation
Layer is made using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as main component, and this is dissipated
It is 30%~40% that heat sink material, which accounts for the percentage of the gross weight of its all material, in thermosphere.
Further, the heat sink material of the side in the heat dissipating layer in conjunction with grinding layer accounts for the gross weight of the side all material
Percentage is 20%~30%, and the percentage that the heat sink material of the other side accounts for the gross weight of the side all material is 40%~50%.
Further, the grinding layer is made of following components in percentage by weight:
The sum of weight percent of the above components is 100%.
The heat dissipating layer is made of following components in percentage by weight:
The sum of weight percent of the above components is 100%.
As a kind of more preferably technical solution, the change that the endothermic reaction is carried out in grinding tool work is mixed in the filler material
Close object.The compound be inorganic salt hydrate and the filler material by account for its weight percent be 40%~50% it is inorganic
Salt hydrate and 50%~60% auxiliary material composition.
In the present embodiment, the polyol is preferably polyester polyol or polyether polyol.It is used poly-
The type that ester polyol or polyether polyol are well known to the skilled person, hydroxyl value are preferably 7000.The abrasive material
For natural abrasive and manufactured abrasive, preferably Brown Alundum, white fused alumina, single alundum, silicon carbide, cubic boron nitride, in cerium oxide
It is one or more.If selecting Brown Alundum, the Brown Alundum preferred size be 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-methanes.The defoaming agent is commonly used in the art
Defoaming agent, 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, illustrate the present invention grinding tool prepares raw material:
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:
Polyester polyol (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:
Polyester polyol (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: weighing each component according to the above formula rate, and pigment and calcium sulphate dihydrate are mixed by sieve twice
It is spare that with Brown Alundum and heat sink material siccative mixture is stirred into again after conjunction；MOCA is screened using preceding with 80# sieve, so
Dimethicone, MOCA and di-n-butyltin dilaurate are added in polyester polyol afterwards, add methyl diisocyanate,
It is mixed with bonding agent mixture；In the step, the pure and mild methyl diisocyanate of polyester polyols has to pass through filtering, to avoid material
Conglomeration is expected, if use does not have to pass through kept dry to other materials on the day of.It is filled in addition, all screening materials must all have
The Powder Particle Size and the uniformity of foot, it is not possible to have conglomeration and non-uniform thick point.
2) it stirs: above-mentioned bonding agent mixture is stirred 30~45 seconds in advance, siccative mixture stirring 2 minutes is added, then
Start that amines catalyst is added dropwise, stirred 2.5~3 minutes after being added dropwise, stops stirring.In the whipping process, room temperature is protected
It holds lower than 23 DEG C, humidity lower than 60%.
3) reverse mould: mold is using preceding smearing release agent, and release agent is that polyethylene wax (molecular weight 2000) adds by kerosene
Heat of solution is at paste.Reverse mould requires to complete in 1 minute, and reverse mould requires surface of material 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 secondary batch turning should be kept uniform during the reverse mould, and at once
It is die-filling.
Wherein, first time reverse mould: the mixing material of the grinding tool heat dissipating layer obtained after agitated is continued to fall after stirring combines
Enter in the heat dissipation accommodating space of mold；Then it after vulcanization reaction 1 hour, comes out of the stove through 105 DEG C, is cooled to 40 DEG C.Then, the is carried out
Secondary reverse mould: after the half-formed grinding tool curing, the partition in mold is taken out, and is directly infused in grinding layer accommodating space
Enter it is agitated after grinding tool grinding layer mixing material.
4) tentatively vulcanization and demoulding: 100 DEG C after vulcanization reaction 1 hour, are come out of the stove, and are cooled to 40 DEG C, demoulding；When demoulding, institute
The grinding tool to be manufactured is shaped, it is desirable that the idiosome after demoulding cannot deform and drop off.
5) it after 85~100 DEG C of 8~16h of cooked at constant, is smeared with polyurethane varnish by surface, smearing surface is uniform, no
There can be place that is blocked up or not being applied to, just enter subsequent processing after needing to stand to sufficiently solidification.It polishes after curing and 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:
Polyester polyol (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:
Polyester polyol (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 step and points for attention are same as Example 1.
Compared with the existing technology, while guaranteeing the cutting hardness of grinding tool, increasing can make 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 dissipation performance of grinding tool, so as in grinding process
Rapid cooling guarantees cooling effect and improves cooling efficiency, to guarantee its own good performance and prolong its service life.
The invention is not limited to above embodiment, if not departing from the present invention to various changes or deformation of the invention
Spirit and scope, if these changes and deformation belong within the scope of claim and equivalent technologies of the invention, then this hair
It is bright to be also intended to encompass these changes and deformation.
Claims (6)
1. a kind of grinding tool is made of abrasive material, organic bond and stomata, and with abrasive material, filler material, bonding agent, defoaming agent, solidification
Agent and stabilizer are as main component；It is characterized by: being mixed with heat sink material in the abrasive material；
The grinding tool is in turn divided into grinding layer and heat dissipating layer from one side toward its other side；
The grinding layer is using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as main component
It is made, and it is 10%~15% that the heat sink material in the grinding layer, which accounts for the percentage of its all material gross weight,；
The heat dissipating layer is using abrasive material, filler material, bonding agent, heat sink material, defoaming agent, curing agent and stabilizer as main component
It is made, and it is 30%~40% that heat sink material, which accounts for the percentage of the gross weight of its all material, in the heat dissipating layer；
The percentage that the heat sink material of side in the heat dissipating layer in conjunction with grinding layer accounts for the gross weight of the side all material is
20%~30%, the percentage that the heat sink material of the other side accounts for the gross weight of the side all material is 40%~50%.
2. grinding tool according to claim 1, it is characterised in that: the grinding layer is by following components in percentage by weight system
At:
The sum of weight percent of the above components is 100%.
3. grinding tool according to claim 1, it is characterised in that: the heat dissipating layer is by following components in percentage by weight system
At:
The sum of weight percent of the above components is 100%.
4. described in any item grinding tools according to claim 1~3, it is characterised in that: the heat sink material is high temperature heat sink material.
5. described in any item grinding tools according to claim 1~3, it is characterised in that: be mixed in the filler material in grinding tool work
The compound of the endothermic reaction is carried out when making.
6. grinding tool according to claim 5, it is characterised in that: the compound is inorganic salt hydrate and the filling
Material is that 40%~50% inorganic salt hydrate and 50%~60% auxiliary material form by accounting for its weight percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519143.2A CN106607772B (en) | 2016-07-01 | 2016-07-01 | Grinding tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519143.2A CN106607772B (en) | 2016-07-01 | 2016-07-01 | Grinding tool |
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| CN106607772A CN106607772A (en) | 2017-05-03 |
| CN106607772B true CN106607772B (en) | 2019-06-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032229A (en) * | 2017-12-19 | 2018-05-15 | 广东纳德新材料有限公司 | A kind of formula and preparation method of resin-diamond edging wheel |
| CN109517527A (en) * | 2018-12-04 | 2019-03-26 | 长春安旨科技有限公司 | A kind of wear-resisting polishing material |
| CN109679326A (en) * | 2018-12-04 | 2019-04-26 | 长春安旨科技有限公司 | A kind of optical polish material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292742A (en) * | 1998-05-08 | 2001-04-25 | 诺顿公司 | Abrasive grinding tools with hydrated and nonhalogenated inorganic grinding aids |
| DE102005026474A1 (en) * | 2005-06-09 | 2006-12-14 | Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg | Abrasive layer has abrasive particles embedded in a galvanic layer with a selected proportion of PTFE particles |
| 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 |
| CN103786103A (en) * | 2014-01-10 | 2014-05-14 | 当涂县南方红月磨具磨料有限公司 | Toughened heat-resistant ceramic CBN (cubic boron nitride) grinding wheel |
| CN104816257A (en) * | 2015-05-14 | 2015-08-05 | 湖北小蚂蚁金刚石工具有限公司 | Screen printing type casting diamond dry grinding sheet and manufacturing process thereof |
-
2016
- 2016-07-01 CN CN201610519143.2A patent/CN106607772B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292742A (en) * | 1998-05-08 | 2001-04-25 | 诺顿公司 | Abrasive grinding tools with hydrated and nonhalogenated inorganic grinding aids |
| DE102005026474A1 (en) * | 2005-06-09 | 2006-12-14 | Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg | Abrasive layer has abrasive particles embedded in a galvanic layer with a selected proportion of PTFE particles |
| 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 |
| CN103786103A (en) * | 2014-01-10 | 2014-05-14 | 当涂县南方红月磨具磨料有限公司 | Toughened heat-resistant ceramic CBN (cubic boron nitride) grinding wheel |
| CN104816257A (en) * | 2015-05-14 | 2015-08-05 | 湖北小蚂蚁金刚石工具有限公司 | Screen printing type casting diamond dry grinding sheet and manufacturing process thereof |
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