CN108818330A - A kind of grinding CBN grinding wheel and preparation method thereof - Google Patents
A kind of grinding CBN grinding wheel and preparation method thereof Download PDFInfo
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- CN108818330A CN108818330A CN201810748935.6A CN201810748935A CN108818330A CN 108818330 A CN108818330 A CN 108818330A CN 201810748935 A CN201810748935 A CN 201810748935A CN 108818330 A CN108818330 A CN 108818330A
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- abrasive material
- cbn
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- powder
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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
- B24D3/02—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
- B24D3/04—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 inorganic
- B24D3/06—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 inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
-
- 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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- 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
- B24D18/0072—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing
-
- 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
- B24D3/342—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 incorporated in the bonding agent
-
- 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
- B24D3/346—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 utilised during polishing, or grinding operation
Abstract
A kind of grinding CBN grinding wheel and preparation method thereof, grinding wheel include steel core, abrasive material circle, and steel core and abrasive material circle pass through resinoid bond resin glue caking agent and combine；Abrasive material circle is prepared by CBN abrasive material, metallic bond and additional adhesive by mass percentage before being sintered；Metallic bond is by Cu powder and TiH2Powder composition；Abrasive material circle group becomes：CBN abrasive material, metallic bond and hole；Preparation method：1) by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, and mixture A is made；2) additional adhesive is uniformly mixed with mixture A, mixture B is made；3) mixture B is dried；4) the mixture B after drying is sieved；5) by the mixture B cold moudling after sieving, abrasive material circle green compact are obtained；6) it by abrasive material circle green compact, is sintered and cooled comes out of the stove under inert gas atmosphere, obtain abrasive material circle green body；7) resin glue caking agent is used, abrasive material circle green body and steel core are bonded, must be ground and use CBN grinding wheel.
Description
Technical field
The present invention relates to super hard abrasive fields, and in particular to a kind of grinding CBN grinding wheel and preparation method thereof.
Background technique
With modern mechanical processing towards high-precision, at high speed, hard processing, dry processing (no coolant liquid) and reduce cost etc.
Direction is developed, and proposes quite high requirement to grinding tool performance.Traditional silicon carbide and corundum conventional abrasive material mold cannot be complete
The current high speed of full up foot, efficient, high-precision grinding requirement, therefore various excellent wear-resisting properties are developed, it can carry out for a long time steady
Surely the superhard removing material processed is inevitable development trend.Currently used superhard removing material includes cubic boron nitride
(CBN) and two kinds of abrasive materials of diamond.Though the hardness of cubic boron nitride abrasive materials is lower than diamond, but still is much higher than corundum and silicon carbide
Material, and the thermal stability of the abrasive material is better than diamond, there is good Wear-resistant corrosion-resistant.Cubic boron nitride abrasive wheel can not only
The high-strength tenacities such as titanium alloy, nickel base superalloy applied to efficient precise grinding aircraft engine parts (such as disk, axis)
Unmanageable material, and will not react with iron and ferroalloy and can be widely applied for ferrous alloy (ferrous metal) material
Expect such as hardened steel, high-speed tool steel, bearing steel, stainless steel, mould steel, heat resisting steel, advanced high-strength steel and rich chromium cast iron material.
The performances such as grinding efficiency, machining accuracy and the wearability of CBN super-hard abrasive tool (grinding wheel) are the key that in High-speed & Precision Grinding processing
Problem.
Bonding agent in super-hard abrasive tool for fixed grain is the key factor for influencing super-hard abrasive tool performance.Traditional is super
Hard grind tool (grinding wheel) mostly uses the techniques manufactures such as resin, ceramics, metallic bond sintering and plating, the problem is that monocrystalline
Grain is only embedded in bonding agent and electroplated layer by machinery embedding, weaker with bonding agent and plating interlayer active force.It is specific next
It says, although resinoid bond is easier processing and modifies, but poor heat resistance, and bond strength is low, and abrasive material falls off seriously, serious shadow
Ring efficiency；Vitrified bond finishing is relatively easy, and using temperature height, however brittleness is big, and toughness and fatigability are poor, Yi Fa
Raw embrittlement, it is difficult to be used for High-speed machining.Although it is strong that metallic bond is sintered heat resistance, between usual bonding agent and abrasive grain not
Enhanced primary treatment can be generated, thus abrasive grain is only embedded in bonding agent by machinery embedding, holding power is limited；In metal plating
Abrasive grain is also only mechanically embedded.Therefore it is easy to fall off because of abrasive material in particle and is removed in flakes with coating due to lead to the entirety of grinding wheel
Failure, such situation are especially apparent in more unmanageable material high efficient grinding；In addition, plating thickness, abrasive material proud exposure
Low, chip space is small, and when grinding is easy to fail because the adherency of chip blocks.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of grinding CBN grinding wheel and preparation method thereof, which is one
Kind can bear the CBN grinding wheel compared with big load during high-speed grinding, while have outstanding impact resistance and good shape
Retentivity, specific technical solution are as follows：
A kind of grinding CBN grinding wheel of the invention comprising steel core, abrasive material circle, steel core and abrasive material circle pass through resin-bonded
Agent resin glue caking agent combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：35~
70%, metallic bond：30~60%, additional adhesive：3~12%, CBN abrasive material, metallic bond and additional adhesive matter
Measuring the sum of percentage is 100%；The mass percent that the metallic bond contains ingredient is：Cu powder：60~90%, TiH2
Powder：5~40%, Cu powder and TiH2The sum of mass percent is 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 10
~50%, metallic bond 10~47%, hole 20~45%, the percent by volume of CBN abrasive material, metallic bond and hole it
Be 100%.
The Cu powder and TiH2The particle size range of powder is 30~300 μm.
The additional adhesive is acrylic emulsion.
A kind of grinding preparation method of CBN grinding wheel of the invention, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, and mixing is made
Expect A；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is uniformly mixed with mixture A, and mixing is made
Expect B；
Step 3, it dries：
Mixture B is heated to 50~200 DEG C, is dried in mass ratio, the mixture B after drying：Mixing before drying
Expect B=80~95%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 20~300 mesh；
Step 5, it forms：
By the mixture B after sieving, uniformly putting into mold, cold moudling, pressure is 40~150MPa, pressure maintaining 10~
Abrasive material circle green compact are made in 70min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 3~10 DEG C/min, from room temperature liter
Temperature is to 1050~1200 DEG C of sintering temperature, 10~150min of sintering time；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
A kind of above-mentioned grinding CBN grinding wheel and preparation method thereof, wherein：
In the step 1, incorporation time is 1~6h.
It in the step 2, stirs by mixing, mixing time is 0.5~2h.
In the step 3, drying soaking time is 1~4h.
In the step 4, it is sieved 2~10 times.
In the step 5, cold moudling uses hydraulic press.
In the step 6, inert gas is argon gas.
A kind of grinding CBN grinding wheel and preparation method thereof of the invention has the beneficial effect that compared with prior art：
(1) grinding of the invention with CBN grinding wheel there is fabulous thermal conductivity can quickly reduce grinding workpiece surface
Temperature improves grinding speed to reduce power loss；Additional adhesive in formula is conducive to the formation of product hole, can
With effective space for increasing the abrasive grain that receiving falls off, the utilization of abrasive material is more abundant, while metallic bond has extremely strong holding
Power；Grinding wheel has the characteristics that grinding efficiency is high, grinding temperature is low, power loss is low, good processing accuracy, long service life.
(2) preparation method provided by the invention, since sintering time is short, the characteristic of abrasive material is not damaged, sintering temperature
Degree, metallic bond, porosity and the control of time, making grinding wheel during the work time has good thermal conductivity and biggish appearance
It considers space to be worth doing, is also not easy to plug during high-speed grinding, be ground sharp, grinding accuracy height, and there is self-sharpening.
Specific embodiment
Below with reference to specific implementation case, the invention will be further described, but the invention is not limited to these to implement
Example.
In following embodiment, inert gas is argon gas.
Embodiment 1
A kind of grinding CBN grinding wheel comprising steel core, abrasive material circle, steel core and abrasive material circle are combined by resin glue caking agent,
Wherein, abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：45%, metallic bond：50%, auxiliary is viscous
Tie agent：The sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metallic bond
Mass percent containing ingredient is：Cu powder：60%, TiH2Powder：40%, Cu powder and TiH2The sum of mass percent is 100%；
Abrasive material circle is formed by percent by volume：CBN abrasive material 30%, metallic bond 30%, hole 40%, CBN abrasive material, metal bonding
The sum of percent by volume of agent and hole is 100%；CBN abrasive material, Cu powder and the TiH2The partial size of powder is 60 μm；It is described
Additional adhesive be acrylic emulsion.
The above-mentioned grinding preparation method of CBN grinding wheel, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, incorporation time
For 2h, mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 1h；
Step 3, it dries：
Mixture B is heated to 50 DEG C, drying soaking time is 2h, in mass ratio, the mixture B after drying：Before drying
Mixture B=88%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 5 times；
Step 5, it forms：
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 65MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 10 DEG C/min, from room temperature
To 1100 DEG C of sintering temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
Embodiment 2
A kind of grinding CBN grinding wheel comprising steel core, abrasive material circle, steel core and abrasive material circle pass through resinoid bond resin glue
Binder combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：47%, metallic bond：
48%, additional adhesive：The sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；It is described
The metallic bond mass percent that contains ingredient be：Cu powder：65%, TiH2Powder：35%, Cu powder and TiH2Mass percent
The sum of be 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 33%, metallic bond 30%, hole 37%, CBN
The sum of percent by volume of abrasive material, metallic bond and hole is 100%；CBN abrasive material, Cu powder and the TiH2The partial size of powder
It is 100 μm；The additional adhesive is acrylic emulsion.
The above-mentioned grinding preparation method of CBN grinding wheel, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, incorporation time
For 2h, mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 1h；
Step 3, it dries：
Mixture B is heated to 50 DEG C, drying soaking time is 2h, in mass ratio, the mixture B after drying：Before drying
Mixture B=88%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 5 times；
Step 5, it forms：
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 65MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 10 DEG C/min, from room temperature
To 1100 DEG C of sintering temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
Embodiment 3
A kind of grinding CBN grinding wheel comprising steel core, abrasive material circle, steel core and abrasive material circle pass through resinoid bond resin glue
Binder combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：50%, metallic bond：
45%, additional adhesive：The sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；It is described
The metallic bond mass percent that contains ingredient be：Cu powder：70%, TiH2Powder：30%, Cu powder and TiH2Mass percent
The sum of be 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 38%, metallic bond 29%, hole 33%, CBN
The sum of percent by volume of abrasive material, metallic bond and hole is 100%；CBN abrasive material, Cu powder and the TiH2The partial size of powder
It is 150 μm；The additional adhesive is acrylic emulsion.
The above-mentioned grinding preparation method of CBN grinding wheel, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, incorporation time
For 2h, mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 1h；
Step 3, it dries：
Mixture B is heated to 50 DEG C, drying soaking time is 2h, in mass ratio, the mixture B after drying：Before drying
Mixture B=88%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 5 times；
Step 5, it forms：
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 65MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 10 DEG C/min, from room temperature
To 1100 DEG C of sintering temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
Embodiment 4
A kind of grinding CBN grinding wheel comprising steel core, abrasive material circle, steel core and abrasive material circle pass through resinoid bond resin glue
Binder combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：55%, metallic bond：
40%, additional adhesive：The sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；It is described
The metallic bond mass percent that contains ingredient be：Cu powder：75%, TiH2Powder：25%, Cu powder and TiH2Mass percent
The sum of be 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 42%, metallic bond 27%, hole 31%, CBN
The sum of percent by volume of abrasive material, metallic bond and hole is 100%；CBN abrasive material, Cu powder and the TiH2The partial size of powder
It is 200 μm；The additional adhesive is acrylic emulsion.
The above-mentioned grinding preparation method of CBN grinding wheel, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, incorporation time
For 2h, mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 1h；
Step 3, it dries：
Mixture B is heated to 50 DEG C, drying soaking time is 2h, in mass ratio, the mixture B after drying：Before drying
Mixture B=88%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 5 times；
Step 5, it forms：
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 65MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 10 DEG C/min, from room temperature
To 1100 DEG C of sintering temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
Embodiment 5
A kind of grinding CBN grinding wheel comprising steel core, abrasive material circle, steel core and abrasive material circle pass through resinoid bond resin glue
Binder combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：60%, metallic bond：
35%, additional adhesive：The sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；It is described
The metallic bond mass percent that contains ingredient be：Cu powder：80%, TiH2Powder：20%, Cu powder and TiH2Mass percent
The sum of be 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 46%, metallic bond 25%, hole 29%, CBN
The sum of percent by volume of abrasive material, metallic bond and hole is 100%；CBN abrasive material, Cu powder and the TiH2The partial size of powder
It is 250 μm；The additional adhesive is acrylic emulsion.
The above-mentioned grinding preparation method of CBN grinding wheel, includes the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, incorporation time
For 2h, mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 1h；
Step 3, it dries：
Mixture B is heated to 50 DEG C, drying soaking time is 2h, in mass ratio, the mixture B after drying：Before drying
Mixture B=88%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 5 times；
Step 5, it forms：
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 65MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered：
(1) it by abrasive material circle green compact, is sintered under inert gas atmosphere, with the heating rate of 10 DEG C/min, from room temperature
To 1100 DEG C of sintering temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, finishing molding, CBN is used in obtained grinding
Grinding wheel.
Claims (7)
1. a kind of grinding CBN grinding wheel, which is characterized in that including steel core, abrasive material circle, steel core and abrasive material circle pass through resinoid bond
Resin glue caking agent combines, wherein abrasive material circle is prepared from the following components by mass percentage：CBN abrasive material：35~70%,
Metallic bond：30~60%, additional adhesive：3~12%, CBN abrasive material, metallic bond and additional adhesive quality percentage
Than the sum of be 100%；The mass percent that the metallic bond contains ingredient is：Cu powder：60~90%, TiH2Powder：5~
40%, Cu powder and TiH2The sum of mass percent is 100%；Abrasive material circle is formed by percent by volume：CBN abrasive material 10~
50%, metallic bond 10~47%, hole 20~45%, the sum of CBN abrasive material, metallic bond and percent by volume of hole
It is 100%.
2. a kind of grinding CBN grinding wheel according to claim 1, peculiar to be, the Cu powder and TiH2The partial size model of powder
Enclose is 30~300 μm.
3. a kind of grinding CBN grinding wheel according to claim 1, which is characterized in that the additional adhesive is propylene
Yogurt liquid.
4. the preparation method that CBN grinding wheel is used in a kind of grinding described in claim 1, which is characterized in that include the following steps：
Step 1, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, by CBN abrasive material, Cu powder and TiH2Powder is uniformly mixed, and mixture A is made；
Step 2, mixing：
The composition proportion that CBN grinding wheel is used by a kind of grinding, additional adhesive is uniformly mixed with mixture A, and mixture B is made；
Step 3, it dries：
Mixture B is heated to 50~200 DEG C, is dried in mass ratio, the mixture B after drying：Mixture B=before drying
80~95%；
Step 4, it is sieved：
By the mixture B sieving after drying, crossing grit number is 20~300 mesh；
Step 5, it forms：
By the mixture B after sieving, uniformly putting into mold, cold moudling, pressure is 40~150MPa, 10~70min of pressure maintaining,
Abrasive material circle green compact are made；
Step 6, it is sintered：
(1) by abrasive material circle green compact, be sintered under inert gas atmosphere, with the heating rate of 3~10 DEG C/min, from room temperature to
1050~1200 DEG C of sintering temperature, 10~150min of sintering time；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds：
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, grinding CBN sand is made in finishing molding
Wheel.
5. the preparation method that CBN grinding wheel is used in a kind of grinding according to claim 4, which is characterized in that in the step 1,
Incorporation time is 1~6h.
6. the preparation method that CBN grinding wheel is used in a kind of grinding according to claim 4, which is characterized in that in the step 2,
It stirs by mixing, mixing time is 0.5~2h.
7. the preparation method that CBN grinding wheel is used in a kind of grinding according to claim 4, which is characterized in that in the step 3,
Drying soaking time is 1~4h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633575A (en) * | 2020-06-30 | 2020-09-08 | 郑州高新磨料磨具有限公司 | Metal bond CBN grinding wheel for machining thrust surface and preparation method thereof |
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| EP0071022A2 (en) * | 1981-07-24 | 1983-02-09 | Norton Company | Grinding wheel |
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| CN106625297A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | CBN (Cubic Boron Nitride) grinding wheel |
| CN106625296A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | Diamond grinding wheel |
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| CN103465179A (en) * | 2013-09-05 | 2013-12-25 | 宁波大华砂轮有限公司 | Resin rough grinding wheel and preparation method thereof |
| CN103551972A (en) * | 2013-10-25 | 2014-02-05 | 沈阳一蒙砂轮有限公司 | Nuclear turbine special grinding wheel and manufacturing method thereof |
| CN106625297A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | CBN (Cubic Boron Nitride) grinding wheel |
| CN106625296A (en) * | 2016-11-29 | 2017-05-10 | 磐维科技（青岛）有限公司 | Diamond grinding wheel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111633575A (en) * | 2020-06-30 | 2020-09-08 | 郑州高新磨料磨具有限公司 | Metal bond CBN grinding wheel for machining thrust surface and preparation method thereof |
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