CN106914829B - A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel and preparation method thereof - Google Patents
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel and preparation method thereof Download PDFInfo
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- CN106914829B CN106914829B CN201710262883.7A CN201710262883A CN106914829B CN 106914829 B CN106914829 B CN 106914829B CN 201710262883 A CN201710262883 A CN 201710262883A CN 106914829 B CN106914829 B CN 106914829B
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- grinding wheel
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Classifications
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- 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
- B24D3/28—Resins or natural or synthetic macromolecular compounds
-
- 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
- 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
- B24D3/34—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
- B24D3/344—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 the bonding agent being organic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of high self-sharpening resin bonding agent diamond coreless grinding wheels, including matrix and abrasive material, the abrasive material is prepared by the raw material of following parts by weight: 15-25 parts of resin-oatmeal, 10-35 parts of micron order boron carbide powder, 45-65 parts of polycrystalline diamond abrasive, 1-5 parts of FeCrAl alloy fiber, 1-2 parts of wetting agent.High self-sharpening resin bonding agent diamond coreless grinding wheel provided by the invention has the advantages that self-sharpening is high, crushing number is few, durability is high, improves processing efficiency compared with traditional resin bonding agent diamond coreless grinding wheel.In addition, improved mixing procedure is high-efficient, mixing uniformity is good, it can be achieved that mass production, improves production efficiency.Mixing procedure of the invention using abrasive material and bonding agent respectively dry ball milling be further filled with wetting agent three-dimensional machine it is mixed by the way of, improve mixing efficiency and mixing uniformity effects.
Description
Technical field
The invention belongs to efficient precise grinding processing technique fields, and in particular to a kind of high self-sharpening resinoid bond Buddha's warrior attendant
Stone coreless grinding wheel and preparation method thereof.
Background technique
With being constantly progressive for precision processing technology, it is widely used to respectively using the grinding technique of skive
The corase grinding and precision grinding process of class material, which, which has become, realizes accurate and superfinishing in modern mechanical manufacturing field
Close to process effective and widely used basic fundamental, the Ultra-precision Turning for high-precision, great surface quality workpiece is laid a good foundation.
Corresponding to be, high-performance, high automation grinding machine equipment are to using the performance requirements of the grinding tools such as grinding wheel also increasingly
It is high.
Ideal tools of the skive as grinding hard brittle material are widely used to grinding hard alloy, pottery
The materials such as porcelain, glass, stone material, semiconductor or field.Resin bonding agent diamond coreless grinding wheel is because having high-precision, high surface
Quality and efficient processing characteristics and increasingly by client favor.
Resin bonding agent diamond coreless grinding wheel used at present has the disadvantage that
1) grinding wheel self-sharpening is poor；
2) often, durability is low for crushing.
The resin anchoring agent diamond grinding wheel formula system that the country uses is usually that resin adds the fillers such as copper powder to make, especially
Grinding wheel is easily blocked in grinding hard brittle material because the ductility of copper powder is good for the coreless grinding wheel of major diameter, Gao Houdu
Surface causes the self-sharpening of grinding wheel to be deteriorated, so that making the grinding performance of grinding wheel reduces.According to above-mentioned problem, in order to full
The process requirements of sufficient hard brittle material high, precision and frontier, urgent need invent a kind of high self-sharpening resin bonding agent diamond coreless grinding wheel.
Summary of the invention
The problems such as present invention aim to address current grinding wheel self-sharpening difference and low durabilitys, using certain formula and life
Production. art provides a kind of high self-sharpening resin bonding agent diamond coreless grinding wheel and preparation method thereof, improves processing efficiency, reaches
To the purpose for improving grinding wheel self-sharpening and durability.
The object of the present invention is achieved in the following manner:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, the abrasive material by
The raw material of following parts by weight is prepared: 15-25 parts of resin-oatmeal, 10-35 parts of micron order boron carbide powder, and polycrystalline diamond abrasive
45-65 parts, 1-5 parts of FeCrAl alloy fiber, 1-2 parts of wetting agent.
The resin-oatmeal is the imide resin powder of imide resin powder or modification.
The wetting agent is cresols, polyvinyl alcohol or silane coupling agent.
6-10 μm of diameter of the FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by resin-oatmeal, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and wetting agent press than
Example carry out mixing, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 215-235 DEG C, hot pressing time 45-90min, pressure 2-15MPa；
(3) the grinding wheel blank after hot pressing being placed in hardening baking oven, oven temperature rises to 95-105 DEG C through 1-1.5h,
2-3h is kept the temperature, 225-240 DEG C of holding temperature is warming up to through 2-3h, keeps the temperature 10-12 hours, taken out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
The step (1) is first by polycrystalline diamond abrasive dry ball milling 1-2h, resin-oatmeal and micron order boron carbide powder dry method
Ball milling 2-3h, then resin-oatmeal, micron order boron carbide powder, the polycrystalline after FeCrAl alloy fiber and wetting agent and ball milling is golden
Mixing 0.5-1h in three-dimensional eddy current batch mixer, which is added, in hard rock abrasive material can be obtained molding mass.
Boron carbide hardness is high, and Mohs' hardness is only second to super hard abrasive, the micron order boron carbide micro powder hardness in formula is high,
High-temperature stability and chemical stability are good, contain the sharp cutting basil, have certain assistant grinding effect, while playing increasing
The effect of strong abrasive material integral strength.
The features such as polycrystalline diamond abrasive has rustic fold, and micro- sword is more, good toughness, this special construction and performance
The sharp ability and hardness of grinding wheel can be improved, realize that grinding wheel is certainly broken in Grinding Process, gradually expose new sword, it is sustainable
From sharp, be conducive to the self-sharpening and durability that improve grinding wheel, reduce the frequency of crushing.
Boron carbide powder and polycrystalline diamond abrasive can improve the sharp ability and hardness of grinding wheel, be conducive to improve grinding wheel
Self-sharpening and durability.
FeCrAl alloy fiber, has good conductive, thermally conductive, magnetic conduction and high temperature resistant by 6-10 μm of diameter, length 0.5mm
Performance, has high resiliency and wearability, and the present invention selects suitable draw ratio FeCrAl alloy fiber, can effectively increase grinding wheel
Bonding agent intensity is conducive to preferably be combined between bonding agent and each component, improves its holding intensity to abrasive material, improves grinding wheel
Whole intensity.
Wetting agent is the temporary adhesive in resin abrasive tools molding mass, after it soaks abrasive surface, enables bonding agent
It uniformly is sticked to the surface of abrasive material, thus the generation for preventing component to be layered.Wetting agent in the application can not only prevent component
Layering, and the face shape stability of resin abrasive tools, the cementitiousness of reinforcing filler and resin boundary surface can be improved.
Compared with the existing technology, high self-sharpening resin bonding agent diamond coreless grinding wheel provided by the invention and traditional
Resin bonding agent diamond coreless grinding wheel is compared, and is had the advantages that self-sharpening is high, crushing number is few, durability is high, is mentioned
High processing efficiency.In addition, improved mixing procedure is high-efficient, mixing uniformity is good, it can be achieved that mass production, improves life
Produce efficiency.Dry ball milling is further filled with the mixed side of wetting agent three-dimensional machine to mixing procedure of the invention respectively using abrasive material and bonding agent
Formula improves mixing efficiency and mixing uniformity effects.
Specific embodiment
Embodiment 1:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: 15-25 parts of resin-oatmeal, 10-35 parts of micron order boron carbide powder, and polycrystalline diamond abrasive 45-65
Part, 1-5 parts of FeCrAl alloy fiber, 1-2 parts of wetting agent.
Resin-oatmeal is the imide resin powder of imide resin powder or modification.
Wetting agent is cresols, polyvinyl alcohol or silane coupling agent.
6-10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by resin-oatmeal, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and wetting agent press than
Example carry out mixing, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 215-235 DEG C, hot pressing time 45-90min, pressure 2-15MPa；
(3) the grinding wheel blank after hot pressing being placed in hardening baking oven, oven temperature rises to 95-105 DEG C through 1-1.5h,
2-3h is kept the temperature, 225-240 DEG C of holding temperature is warming up to through 2-3h, keeps the temperature 10-12 hours, taken out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing, which put the first edge on a knife or a pair of scissors, do dynamic balancing etc., (cannot write, such as there are also other processes
Please enumerate in detail) process, final inspection storage.
The step (1) is first by polycrystalline diamond abrasive dry ball milling 1-2h, resin-oatmeal and micron order boron carbide powder dry method
Ball milling 2-3h, then resin-oatmeal, micron order boron carbide powder, the polycrystalline after FeCrAl alloy fiber and wetting agent and ball milling is golden
Mixing 0.5-1h in three-dimensional eddy current batch mixer, which is added, in hard rock abrasive material can be obtained molding mass.
Embodiment 2:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: polyimide resin powder 15kg, 10 kg of micron order boron carbide powder, polycrystalline diamond abrasive 45
1 kg of kg, FeCrAl alloy fiber, 1 kg of cresols.
6 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and first
Phenol carries out mixing in proportion, obtains molding mass；
(2) matrix and required molding mass are packed into mold, prepare grinding wheel hair by certain moulding process on hot press
Base, hot-forming temperature are 215 DEG C, hot pressing time 45min, pressure 2MPa；
(3) the grinding wheel blank after hot pressing being placed in hardening baking oven, oven temperature rises to 95 DEG C through 1h, 2h is kept the temperature,
225 DEG C of holding temperature are warming up to through 2h, 10 hours is kept the temperature, is taken out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1h, polyimide resin powder and micron order boron carbide dried bean noodles
Method ball milling 2h, then by after FeCrAl alloy fiber and cresols and ball milling polyimide resin powder, micron order boron carbide powder,
Mixing 0.5h in three-dimensional eddy current batch mixer, which is added, in polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 3:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: bimaleimide resin powder 16kg, 12 kg of micron order boron carbide powder, polycrystalline diamond stone mill
Expect 47 kg, 1.5 kg of FeCrAl alloy fiber, 1.1 kg of polyvinyl alcohol.
7 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by bimaleimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber
Mixing is carried out in proportion with polyvinyl alcohol, obtains molding mass；
(2) matrix and required molding mass are packed into mold, prepare grinding wheel hair by certain moulding process on hot press
Base, hot-forming temperature are 217 DEG C, hot pressing time 50min, pressure 4MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 96 DEG C through 1.05h, heat preservation
2.1h is warming up to 226 DEG C of holding temperature through 2.1h, keeps the temperature 10.2 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.1h, bimaleimide resin powder and micron order carbonization
Boron powder dry ball milling 2.1h, then by after FeCrAl alloy fiber and polyvinyl alcohol and ball milling bimaleimide resin powder,
Mixing 0.6h in three-dimensional eddy current batch mixer, which is added, in micron order boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 4:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: organic-silicon-modified polyimide resin powder 17kg, 15 kg of micron order boron carbide powder, polycrystalline
Diamond abrasive 49kg, FeCrAl alloy fiber 2 kg, 1.2 kg of cresols.
8 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by organic-silicon-modified polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl
Alloy fiber and cresols carry out mixing in proportion, obtain molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 219 DEG C, hot pressing time 55min, pressure 5MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 97 DEG C through 1.1h, heat preservation
2.2h is warming up to 228 DEG C of holding temperature through 2.2h, keeps the temperature 10.4 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.2h, organic-silicon-modified polyimide resin powder and micro-
Meter level boron carbide powder dry ball milling 2.2h, then will be organic-silicon-modified poly- after FeCrAl alloy fiber and cresols and ball milling
Imide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive are added mixing 0.7h in three-dimensional eddy current batch mixer and can obtain
To molding mass.
Embodiment 5:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: Study of Epoxy-Imide Resin powder 18kg, 18 kg of micron order boron carbide powder, polycrystalline diamond abrasive
2.5 kg of 50kg, FeCrAl alloy fiber, 1.3 kg of silane coupling agent.
9 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by Study of Epoxy-Imide Resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and silicon
Alkane coupling agent carries out mixing in proportion, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 220 DEG C, hot pressing time 60min, pressure 6MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 98 DEG C through 1.15h, heat preservation
2.3h is warming up to 230 DEG C of holding temperature through 2.3h, keeps the temperature 10.6 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.3h, Study of Epoxy-Imide Resin powder and micron order boron carbide powder
Dry ball milling 2.3h, then by Study of Epoxy-Imide Resin powder, the micron after FeCrAl alloy fiber and silane coupling agent and ball milling
Mixing 0.8h in three-dimensional eddy current batch mixer, which is added, in grade boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 6:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: polyimide resin powder 19kg, 20 kg of micron order boron carbide powder, polycrystalline diamond abrasive
3 kg of 52kg, FeCrAl alloy fiber, 1.4 kg of silane coupling agent.
10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and silicon
Alkane coupling agent carries out mixing in proportion, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 222 DEG C, hot pressing time 65min, pressure 7MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 99 DEG C through 1.2h, heat preservation
2.4h is warming up to 232 DEG C of holding temperature through 2.4h, keeps the temperature 10.8 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.4h, polyimide resin powder and micron order boron carbide powder
Dry ball milling 2.4h, then by the polyimide resin powder after FeCrAl alloy fiber and silane coupling agent and ball milling, micron order
Mixing 0.9h in three-dimensional eddy current batch mixer, which is added, in boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 7:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: bimaleimide resin powder 20kg, 22 kg of micron order boron carbide powder, polycrystalline diamond stone mill
Expect 54kg, 3.2 kg of FeCrAl alloy fiber, 1.5 kg of cresols.
6 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by bimaleimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber
Mixing is carried out in proportion with wetting agent, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 225 DEG C, hot pressing time 70min, pressure 8MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 100 DEG C through 1.25h, heat preservation
2.5h is warming up to 233 DEG C of holding temperature through 2.5h, keeps the temperature 11 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.5h, bimaleimide resin powder and micron order carbonization
Boron powder dry ball milling 2.5h, then by bimaleimide resin powder, the micron after FeCrAl alloy fiber and cresols and ball milling
Mixing 1h in three-dimensional eddy current batch mixer, which is added, in grade boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 8:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: organic-silicon-modified polyimide resin powder 21kg, 25 kg of micron order boron carbide powder, polycrystalline
Diamond abrasive 56kg, FeCrAl alloy fiber 3.5 kg, polyvinyl alcohol 1.6kg.
7 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by organic-silicon-modified polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl
Alloy fiber and polyvinyl alcohol carry out mixing in proportion, obtain molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 228 DEG C, hot pressing time 75min, pressure 10MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 101 DEG C through 1.3h, heat preservation
2.6h is warming up to 235 DEG C of holding temperature through 2.6h, keeps the temperature 11.2 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.6h, organic-silicon-modified polyimide resin powder and micro-
Meter level boron carbide powder dry ball milling 2.6h, then will be organic-silicon-modified after FeCrAl alloy fiber and polyvinyl alcohol and ball milling
Polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive be added three-dimensional eddy current batch mixer in mixing 0.5h be
Molding mass can be obtained.
Embodiment 9:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: Study of Epoxy-Imide Resin powder 22kg, 28 kg of micron order boron carbide powder, polycrystalline diamond abrasive
58kg, FeCrAl alloy fiber 3.8 kg, polyvinyl alcohol 1.7kg.
8 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by Study of Epoxy-Imide Resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and poly-
Vinyl alcohol carries out mixing in proportion, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 230 DEG C, hot pressing time 80min, pressure 11MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 102 DEG C through 1.35h, heat preservation
2.7h is warming up to 236 DEG C of holding temperature through 2.7h, keeps the temperature 11.5 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.7h, Study of Epoxy-Imide Resin powder and micron order boron carbide powder
Dry ball milling 2.7h, then by Study of Epoxy-Imide Resin powder, the micron order after FeCrAl alloy fiber and polyvinyl alcohol and ball milling
Mixing 0.6h in three-dimensional eddy current batch mixer, which is added, in boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 10:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: the polyimide resin powder 23kg that cycloalkane is modified, 30 kg of micron order boron carbide powder, polycrystalline
Diamond abrasive 60kg, FeCrAl alloy fiber 4 kg, cresols 1.8kg.
9 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by the modified polyimide resin powder of cycloalkane, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl
Alloy fiber and cresols carry out mixing in proportion, obtain molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 232 DEG C, hot pressing time 85min, pressure 12MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 103 DEG C through 1.4h, heat preservation
2.8h is warming up to 238 DEG C of holding temperature through 2.8h, keeps the temperature 11.6 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.8h, the modified polyimide resin powder of cycloalkane and micro-
Meter level boron carbide powder dry ball milling 2.8h, then gather what the cycloalkane after FeCrAl alloy fiber and cresols and ball milling was modified
Imide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive are added mixing 0.7h in three-dimensional eddy current batch mixer and can obtain
To molding mass.
Embodiment 11:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: bimaleimide resin powder 24kg, 32 kg of micron order boron carbide powder, polycrystalline diamond stone mill
Expect 62kg, FeCrAl alloy fiber 4 .5kg, silane coupling agent 1.9kg.
10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by bimaleimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber
Mixing is carried out in proportion with silane coupling agent, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 234 DEG C, hot pressing time 90min, pressure 14MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 104 DEG C through 1.45h, heat preservation
2.9h is warming up to 239 DEG C of holding temperature through 2.9h, keeps the temperature 11.8 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 1.9h, bimaleimide resin powder and micron order carbonization
Boron powder dry ball milling 2.9h, then by the bimaleimide resin after FeCrAl alloy fiber and silane coupling agent and ball milling
Mixing 0.8h in three-dimensional eddy current batch mixer, which is added, in powder, micron order boron carbide powder, polycrystalline diamond abrasive can be obtained molding mass.
Embodiment 12:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: organic-silicon-modified polyimide resin powder 25kg, 35 kg of micron order boron carbide powder, polycrystalline
Diamond abrasive 65kg, FeCrAl alloy fiber 5kg, polyvinyl alcohol 2kg.
6 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by organic-silicon-modified polyimide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl
Alloy fiber and polyvinyl alcohol carry out mixing in proportion, obtain molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 235 DEG C, hot pressing time 90min, pressure 15MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 105 DEG C through 1.5h, heat preservation
3h is warming up to 240 DEG C of holding temperature through 3h, keeps the temperature 12 hours, take out after being naturally cooling to 40 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
Step (1) is first by polycrystalline diamond abrasive dry ball milling 2h, organic-silicon-modified polyimide resin powder and micron
Grade boron carbide powder dry ball milling 2h, then will be organic-silicon-modified poly- after FeCrAl alloy fiber and polyvinyl alcohol and ball milling
Imide resin powder, micron order boron carbide powder, polycrystalline diamond abrasive are added mixing 1h in three-dimensional eddy current batch mixer and can be obtained
Molding mass.
Embodiment 13:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: polyimide resin powder 22kg, 10 kg of boron carbide powder that diameter is 1.5 μm, polycrystalline diamond
Abrasive material 65kg, FeCrAl alloy fiber 3kg, polyvinyl alcohol 2kg.
6 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
215 DEG C, hot pressing time 50min of hot-forming temperature, 220 DEG C of holding temperature are hardened, other are the same as embodiment 10.
Embodiment 14:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: bimaleimide resin powder 15kg, 35 kg of boron carbide powder that diameter is 0.5 μm, polycrystalline gold
Hard rock abrasive material 45kg, FeCrAl alloy fiber 5kg, cresols 1kg.
10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
225 DEG C, hot pressing 50min of hot-forming temperature, 230 DEG C of holding temperature are hardened, other are the same as embodiment 10.
Embodiment 15:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: organic-silicon-modified polyimide resin powder 25kg, 20 kg of boron carbide powder that diameter is 5 μm,
Polycrystalline diamond abrasive 50kg, FeCrAl alloy fiber 5kg, silane coupling agent 1kg.
10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
235 DEG C, hot pressing 90min of hot-forming temperature, 245 DEG C of holding temperature are hardened, other are the same as embodiment 10.
Embodiment 16:
A kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following
The raw material of parts by weight is prepared: polyimide resin powder 21kg, 22 kg of boron carbide powder that diameter is 3.5 μm, polycrystalline diamond
Abrasive material 55kg, FeCrAl alloy fiber 2kg, silane coupling agent 1kg.
6 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
235 DEG C, hot pressing 90min of hot-forming temperature, 245 DEG C of holding temperature are hardened, other are the same as embodiment 10.
Comparative example:
A kind of general resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, abrasive material is by following heavy
The raw material of amount part is prepared: 20 kg of phenol-formaldehyde resin powder, 15 kg of copper powder, 15 kg of silicon carbide, 45 kg of RVD diamond abrasive,
4 kg of calcium oxide, 1 kg of cresols wetting agent.
The preparation method of comparative example, specific as follows:
(1) by phenol-formaldehyde resin powder, copper powder, silicon carbide, RVD diamond abrasive, calcium oxide, cresols wetting agent raw material is in proportion
Mixing is carried out, molding mass is obtained；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank by certain moulding process on hot press, heat
Molded temperature is 185 DEG C, hot pressing time 60min, pressure 12MPa；
(3) the grinding wheel blank after hot pressing being placed in hardening baking oven, oven temperature rises to 105 DEG C through 1,2h is kept the temperature,
185 DEG C of holding temperature are warming up to through 2h, 8 hours is kept the temperature, is taken out after being naturally cooling to 60 DEG C；
(4) grinding wheel blank after hardening by the assembling of multi-disc bonding, matrix is rough turn, matrix smart car, determine matrix datum level,
Matrix aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
First hand lapping 30min in RVD diamond abrasive is added in cresols wetting agent by step (1), then unclassified stores is added
Enter, being put into mixing 1h in three-dimensional eddy current batch mixer can be obtained molding mass.
For grinding YG12 bar, the high self-sharpening resin bonding agent diamond coreless grinding wheel of embodiment 13-16 preparation
1 is shown in Table with the grinding test Comparative result of comparative example.
The high self-sharpening resin bonding agent diamond coreless grinding wheel of embodiment 13-16 preparation and pair of traditional handicraft production
Show than embodiment wheel grinding test result:
1) the high self-sharpening resin bonding agent diamond coreless grinding wheel grinding spindle power that prepared by embodiment 13- 16 is equal
It lower than comparative example grinding wheel, modifies number and reduces more than half, the grinding performance of grinding wheel is better than comparative example, and grinding wheel is from sharp
Property it is good, finishing number is few, and durability is high；
2) spindle power of embodiment 16, finishing number, grinding wheel radial direction waste and volume grinding ratio are superior to other realities
Example is applied, comprehensive performance is best；
3) the grinding wheel radial direction waste of embodiment 13 is higher than comparative example, and volume grinding ratio is lower than embodiment, illustrates it
The service life of grinding wheel is slightly below embodiment grinding wheel, but its spindle power, finishing number are superior to comparative example, the self-sharpening of grinding wheel
Comparative example grinding wheel is still higher than with processing efficiency.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (3)
1. a kind of high self-sharpening resin bonding agent diamond coreless grinding wheel, including matrix and abrasive material, it is characterised in that: described
Abrasive material is prepared by the raw material of following parts by weight: 15-25 parts of resin-oatmeal, 10-35 parts of micron order boron carbide powder, and polycrystalline diamond
45-65 parts of stone mill material, 1-5 parts of FeCrAl alloy fiber, 1-2 parts of wetting agent；
The resin-oatmeal is the imide resin powder of imide resin powder or modification；
The wetting agent is cresols, polyvinyl alcohol or silane coupling agent；
Such as the preparation method of above-mentioned high self-sharpening resin bonding agent diamond coreless grinding wheel, the specific steps are as follows:
(1) by resin-oatmeal, micron order boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and wetting agent in proportion into
Row mixing, obtains molding mass；
(2) matrix and molding mass are packed into mold, prepare grinding wheel blank, hot-forming temperature by moulding process on hot press
It is 215-235 DEG C, hot pressing time 45-90min, pressure 2-15MPa；
(3) the grinding wheel blank after hot pressing is placed in hardening baking oven, oven temperature rises to 95-105 DEG C through 1-1.5h, heat preservation
2-3h is warming up to 225-240 DEG C of holding temperature through 2-3h, keeps the temperature 10-12 hours, take out after being naturally cooling to 40 DEG C；
(4) the grinding wheel blank after hardening is assembled by multi-disc bonding, matrix is rough turn, matrix smart car, determines matrix datum level, matrix
Aperture smart car, grinding wheel abrasive material end face and cylindrical finishing put the first edge on a knife or a pair of scissors, do dynamic balancing process, final inspection storage.
2. high self-sharpening resin bonding agent diamond coreless grinding wheel according to claim 1, it is characterised in that: described
6-10 μm of the diameter of FeCrAl alloy fiber, length 0.5mm.
3. high self-sharpening resin bonding agent diamond coreless grinding wheel according to claim 1, it is characterised in that: the step
Suddenly (1) is first by polycrystalline diamond abrasive dry ball milling 1-2h, resin-oatmeal and micron order boron carbide powder dry ball milling 2-3h, then incites somebody to action
Resin-oatmeal, micron order boron carbide powder, polycrystalline diamond abrasive after FeCrAl alloy fiber and wetting agent and ball milling are added three
Molding mass can be obtained in mixing 0.5-1h in dimension vortex batch mixer.
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| CN108129067B (en) * | 2017-12-30 | 2020-09-29 | 苏州赛尔科技有限公司 | Diamond scribing knife for ceramic substrate segmentation and preparation method thereof |
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| CN111890244B (en) * | 2018-06-21 | 2022-06-28 | 江苏赛扬精工科技有限责任公司 | Preparation method of resin-based centerless grinding wheel |
| CN109015425B (en) * | 2018-06-26 | 2019-12-20 | 郑州磨料磨具磨削研究所有限公司 | Resin binder grinding wheel and preparation method thereof |
| CN109277956B (en) * | 2018-11-09 | 2024-01-05 | 浙江亚孙砂轮有限公司 | High-speed grinding wheel for handheld engine large-diameter cutting machine and production process |
| CN109551381A (en) * | 2018-12-29 | 2019-04-02 | 柳州凯通新材料科技有限公司 | A kind of processing technology of metal anchoring agent diamond wheel |
| CN112428163A (en) * | 2020-11-17 | 2021-03-02 | 东莞市晶菱磨料磨具科技有限公司 | Production formula and production process of resin polishing wheel |
| CN114131520B (en) * | 2021-12-09 | 2022-09-27 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel for machining highlight cutter, and preparation method and application thereof |
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