CN110497327A - Big outer diameter resin wheel and preparation method thereof - Google Patents
Big outer diameter resin wheel and preparation method thereof Download PDFInfo
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- CN110497327A CN110497327A CN201910812611.9A CN201910812611A CN110497327A CN 110497327 A CN110497327 A CN 110497327A CN 201910812611 A CN201910812611 A CN 201910812611A CN 110497327 A CN110497327 A CN 110497327A
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- resin
- outer diameter
- parts
- big outer
- wheel
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Classifications
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- 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
-
- 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
- B24D3/285—Reaction products obtained from aldehydes or ketones
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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
- B24D3/34—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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
Abstract
The invention discloses big outer diameter resin wheels and preparation method thereof, are related to the technical field of grinding wheel manufacture and production, and formula includes the component of following parts by weight: 480-520 parts of white fused alumina；2400-2600 parts of Brown Alundum；280-320 parts of bonding agent；95-105 parts of ice crystal；135-145 parts of potassium sulfate；Wherein bonding agent includes phenol-formaldehyde resin powder and liquid phenolic resin, and the weight fraction ratio of phenol-formaldehyde resin powder and liquid phenolic resin is 2:1-3:1.The preparation method of the big outer diameter resin wheel includes mixing procedure and moulding process, and mixing procedure is the following steps are included: A1. is blended premix, A2. is blended coarse sand material, A3. coarse sand material screen material；Moulding process is the following steps are included: B1. molding mass is laid with, B2. is press-formed, B3. drying hardening.The present invention has the technical effect that bending strength is high, grinding performance is good.
Description
Technical field
The present invention relates to the technical fields of grinding wheel manufacture and production, more particularly, to big outer diameter resin wheel and its preparation side
Method.
Background technique
Resin wheel is the grinding wheel being made into resin, with intensity is high, heat resistance is low, self-sharpening is good, simple for production, technique
The features such as period is short is widely used in corase grinding, snagging, cutting and is freely ground, and such as grinds steel ingot, and casting deburrs, is commonly used for cutting
Pitch cutting, heavy duty grinding wheel, polishing wheel etc..Resin wheel is widely used in the fields such as mechanical metallurgy, building, military project, construction of railways,
It is mainly used for the cutting and polishing of the common metals material such as steel pipe, fashioned iron, reinforcing bar.
Resin wheel is divided by abrasive material is generally divided into ordinary resin grinding wheel and superhard resin wheel.Ordinary resin grinding wheel be with
The conventional abrasive materials such as white fused alumina, Brown Alundum, silicon carbide are the grinding wheel being mainly ground to point, superhard resin wheel be with diamond or
CBN is the grinding wheel being mainly ground to point.It is most common above ordinary resin grinding wheel market to have ordinary resin cutting sheet and common tree
Rouge grinding, typical diameters 100,180,230,300,350,400,500.Mainly there is superhard tree above superhard resin wheel market
Rouge cutting sheet and superhard resin mill, the diameter of common cutting sheet are 100,125,150,200.The specification of common mill is straight
Diameter is 150,200,250,300,400.
The big outer diameter resin wheel used on the market at present, the problem that generally existing brittleness is big, bending strength is low cause big
Outer diameter resin wheel is easy tipping or fracture in use, finally makes the reuse number of big outer diameter resin wheel significantly
It reduces, reduced service life.
Summary of the invention
The purpose of the present invention one is to provide the big outer diameter resin wheel that a kind of bending strength is high, grinding performance is good, the present invention
Purpose two be to provide the preparation method of the big outer diameter resin wheel.
The technical scheme is that:
A kind of big outer diameter resin wheel, the component including following parts by weight:
Wherein bonding agent includes phenol-formaldehyde resin powder and liquid phenolic resin, and the weight fraction ratio of phenol-formaldehyde resin powder and liquid phenolic resin is
2:1-3:1。
By using above-mentioned technical proposal, the basic abrasive material of white fused alumina and Brown Alundum as resin wheel has good
Grinding performance.Wherein the hardness of Brown Alundum is high, toughness is big, grinding performance is good；The toughness of white fused alumina is lower than Brown Alundum, but grinding heat
Measure small, the small impact resistance of crystalline size, and particle is mostly spherical particle, surface is done clean, is easy to bonding agent combination.Brown Alundum and Bai Gang
Jade is combined as the basic abrasive material of resin wheel, assigns the higher hardness of resin wheel, lower grinding heat, good toughness
And grinding performance.
Phenol-formaldehyde resin powder and liquid phenolic resin get up loose abrasive material consolidation as bonding agent, and being formed has grinding function
Grinding wheel, wherein liquid phenolic resin is the wetting agent of abrasive material, and phenol-formaldehyde resin powder is main bonding agent.Liquid phenolic resin infiltration is attached to
Abrasive particle surface forms a thin resin film, when abrasive material that this surface is infiltrated and phenol-formaldehyde resin powder and ice crystal and
When the fleuts such as potassium sulfate mix, flour will effectively be bonded in the abrasive surface for having infiltrated resin, and then play
Good cementation allows grinding wheel material to keep stable blank shape in compacting.
Ice crystal and potassium sulfate are the reinforcing fillers of resin wheel, wherein donor of the potassium sulfate as sulphur, are being cut through
Sulphur is provided in journey, to promote the fracture of metal material chemical bond, improves the cutting power and efficiency of grinding wheel.Ice crystal then conduct
Wheel strength can be improved in supporting material；The fusing point of ice crystal is low, the cryolite molten in cutting process, and abrasive material is promoted to fall off,
Wheel topography is prevented, grinding wheel self-sharpening is improved；At the same time, the ice crystal under molten condition plays lubricating action, reduces grinding wheel
Abrasion, and fluorine is precipitated in ice crystal in cutting process, fluorine has strong oxidizing property, metal can be aoxidized and then promote metallochemistry
Key fracture, improves cutting efficiency.
Resin wheel, as abrasive material, enhances the hardness, toughness and grinding performance of grinding wheel using Brown Alundum, white fused alumina；Phenolic aldehyde
Abrasive material is carried out secure bond as bonding agent by resin-oatmeal and liquid phenolic resin, reduces grinding wheel brittleness to improve the bending resistance of grinding wheel
Intensity；The supporting material of ice crystal and potassium sulfate as grinding wheel improves wheel strength self-sharpening and cutting efficiency, extends grinding wheel
Service life.
Be further arranged to: the Brown Alundum includes the corundum sand 30# and corundum sand 36# that weight fraction ratio is 2:1.
By using above-mentioned technical proposal, weight fraction ratio is the corundum sand 30# and corundum sand 36# and phenolic aldehyde of 2:1
The powders such as resin-oatmeal, ice crystal, potassium sulfate make to keep good holding between the abrasive grain in grinding wheel there are grain size distribution
Power, and then the self-sharpening of grinding wheel is kept for a long time, grinder buffing or cutting are sharper, and working efficiency is higher.
Be further arranged to: the phenol-formaldehyde resin powder is thermoplastic phenolic resin, and the liquid phenolic resin is thermosetting property phenol
Urea formaldehyde.
By using above-mentioned technical proposal, phenol-formaldehyde resin powder is thermoplastic phenolic resin and is used as main knot in grinding wheel abrasive material
Mixture, the fluidity with higher when heated connect so that abrasive material is carried out cladding with filler；And liquid phenolic resin is thermosetting
Property phenolic resin, heat cured liquid phenolic resin is thermal post curing, make grinding wheel material compacting when keep stable blank shape.This
Outside, liquid phenolic resin can also be crosslinked with phenol-formaldehyde resin powder in solidification and be reacted, so that crosslinking curing, further increases sand
The adhesion strength and bending strength of wheel.
It is further arranged to: further including the carbon black that parts by weight are 4-6 parts.
By using above-mentioned technical proposal, carbon black makes grinding wheel that black, and inherently a kind of benefit of carbon black be presented as pigment
The wear-resisting property of grinding wheel can be enhanced in strong agent.
A kind of preparation method of big outer diameter resin wheel, including mixing procedure and moulding process, the mixing procedure include
Following steps:
A1. be blended premix: white fused alumina, Brown Alundum are mixed evenly to form abrasive material, added into abrasive material liquid phenolic resin and
Carbon black is uniformly mixed and forms premix；
A2. be blended coarse sand material: potassium sulfate, ice crystal and phenol-formaldehyde resin powder are mixed evenly to form mixed powder, by mixture
Powder is mixed with premix obtained in A1 step, is uniformly mixed and is formed coarse sand material；
A3. coarse sand material screen material: successively passing through 12 mesh for coarse sand material obtained in A2 step and 14 mesh screens carry out sieve material, finally
To molding mass；
The moulding process the following steps are included:
B1. molding mass is laid with: taking three layers of molding mass obtained in step A3 point to be laid in molding die, and adjacent two layers one-tenth
Glass fiber mesh is placed between moulding mixture；
B2. it is press-formed: being laid with molding molding mass surface in step bl is determined and be laid with the trade mark scraps of paper, then in molding mass centre of surface
Grinding wheel washer is placed, then extrusion forming obtains forming grinding wheel；
B3. it drying hardening: hardens the drying of forming grinding wheel obtained in step B2 25h to obtain finished product grinding wheel to forming grinding wheel.
By using above-mentioned technical proposal, in the step A1 of mixing procedure, first white fused alumina and Brown Alundum are mixed and stirred for
After uniformly, adds liquid phenolic resin and carbon black is uniformly mixed and forms premix, making liquid phenolic resin, first sufficiently infiltration is attached to
Abrasive particle surface forms a thin resin film.In step A2, abrasive material that this surface is infiltrated and phenol-formaldehyde resin powder and
When the fleuts such as ice crystal and potassium sulfate mix, flour will effectively be bonded in the abrasive surface for having infiltrated resin,
And then good cementation is played, so that grinding wheel material is kept stable blank shape in compacting.
In step A3, coarse sand material successively passes through 12 mesh and 14 mesh screens carry out sieve material, can will generate in mixing process
Dough, material block screen out, and keep mix size uniformly and loose, make even density after abrasive wheel forming, mechanical property is more excellent.
In the step B1 of moulding process, three layers of molding mass point are laid with and are laid with glass fiber mesh, glass between adjacent two layers
Heat resistance, the high temperature resistant cutting, structural strength of grinding wheel can be improved in enhancing base materials of the web as phenolic resin binder
And bending strength.
Step B2 is laid with the trade mark scraps of paper and in as last extrusion forming process, being laid with molding molding mass surface
The heart places grinding wheel washer, and then pressurization is integrally formed molding mass, glass fiber mesh, the trade mark scraps of paper and grinding wheel washer, grinding wheel
Connected between different component it is even closer securely, the overall structural strength of grinding wheel is higher, and service performance is more preferable.
Be further arranged to: in the A3 step, coarse sand material is 20- in temperature T1 by the sieving materials after 12 mesh screens
25 DEG C, humidityTo park under the conditions of 60-70, storage period t1 is 2-24h, then carries out 14 mesh mesh screen material.
By using above-mentioned technical proposal, the bulk density of mixture is just stablized after coarse sand material is parked 2-24 hours, in turn
Make the consistent in density of semi-finished product grinding wheel green body after molding everywhere, guarantee grinding wheel product in each particle synchronous consumption of use process,
Improve the stability in use of grinding wheel.Coarse sand material is 20-25 DEG C, humidity in temperature T1To be parked under conditions of 60-70, can make
Coarse sand material keeps stablizing while stable accumulation density, reduces phenolic resin and other powders with the variation width of temperature, humidity
Degree stablizes coarse sand material property.
Be further arranged to: the glass fiber mesh is phenolic resin modified glass fiber mesh.
Be further arranged to: the phenolic resin content w in the glass fiber mesh is 35-40%.
By using above-mentioned technical proposal, glass fiber mesh is modified using phenolic resin, and phenolic resin on the one hand can
To carry out cross-linking and curing reaction with the phenol-formaldehyde resin powder in molding mass, the bonding improved between glass fiber mesh and molding mass is strong
Degree.In addition, reducing by phenolic resin modified glass fiber mesh brittleness, toughness increases, heat resistance is more preferable, thus as increasing
When strong basis material, hence it is evident that improve the bending strength and heat resistance of grinding wheel.
Be further arranged to: in the B2 step, the pressure P of extrusion forming is 150-170bar, and the dwell time, t2 was
1.5-2.5s。
Be further arranged to: in the step S3, drying temperature T2 is 65-175 DEG C, drying time 25h.
By using above-mentioned technical proposal, forming grinding wheel, the material of forming grinding wheel are obtained by extrusion forming in B2 step
Between powerful cohesive force generated due to high pressure pressing, so that stablizing forming grinding wheel keeps blank shape.In step B3, molding
Grinding wheel dries 25h under the conditions of temperature T2 is 65-175 DEG C, the steam in drying forming grinding wheel, and promotes the phenol in forming grinding wheel
Urea formaldehyde bonding agent crosslinking curing improves Wheel hardness and grinding performance.
In conclusion advantageous effects of the invention are as follows:
(1) hardness, toughness and grinding performance of grinding wheel are enhanced as abrasive material using Brown Alundum, white fused alumina；Phenol-formaldehyde resin powder and phenol
Abrasive material is carried out secure bond as bonding agent by urea formaldehyde liquid, reduces grinding wheel brittleness to improve the bending strength of grinding wheel；Ice crystal
The supporting material of stone and potassium sulfate as grinding wheel improves wheel strength self-sharpening and cutting efficiency, to extend the use of grinding wheel
Service life；
(2) reinforcing filler of ice crystal and potassium sulfate as resin wheel is selected, donor of the potassium sulfate as sulphur is being cut through
Sulphur is provided in journey, to promote the fracture of metal material chemical bond, improves the cutting power and efficiency of grinding wheel；Ice crystal is in addition to increasing
Strong wheel strength melts in cutting process due also to fusing point is low, and abrasive material is promoted to fall off, and prevents wheel topography, improves grinding wheel certainly
Sharp property；At the same time, the ice crystal under molten condition plays lubricating action, reduces abrasion of grinding wheel, and ice crystal is in cutting process
Middle precipitation fluorine, fluorine have strong oxidizing property, and metal can be aoxidized to and then be promoted the fracture of metallochemistry key, improve cutting efficiency；
(3) three layers of molding mass point is laid in molding die, and phenolic resin modified glass fibers are placed between adjacent two layers molding mass
Net is tieed up, glass fiber mesh improves the structural strength of grinding wheel, and the phenolic aldehyde in glass fiber mesh as the enhancing base-material of resin wheel
Resin carries out cross-linking and curing reaction with the phenol-formaldehyde resin powder in molding mass in forming process, improves glass fiber mesh and molding mass
Between adhesion strength；In addition, reducing by phenolic resin modified glass fiber mesh brittleness, toughness increases, heat resistance is more preferable,
To when as enhancing base-material, hence it is evident that improve the bending strength and heat resistance of grinding wheel.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of medium plain emery wheel and molding die of the present invention.
Appended drawing reference: 1, molding die；2, finished product grinding wheel；3, molding mass；4, glass fiber mesh；5, the trade mark scraps of paper；6, sand
Take turns washer.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1: a kind of big outer diameter resin wheel, recipe ingredient and its content are as shown in table 1.Wherein phenol-formaldehyde resin powder is
Thermoplastic phenolic resin, liquid phenolic resin are thermosetting phenolic resin.The corundum sand that Brown Alundum is 2:1 by weight fraction ratio
30# and corundum sand 36# are mixed.The preparation method of the big outer diameter resin wheel includes mixing procedure and moulding process, is mixed
Expect technique the following steps are included:
A1. it is blended premix: by formula ratio feeding, simultaneously by corundum sand 30# in white fused alumina, Brown Alundum and corundum sand 36#
It is mixed evenly to form abrasive material, liquid phenolic resin and carbon black is added into abrasive material, be uniformly mixed and form premix；
A2. be blended coarse sand material: potassium sulfate, ice crystal and phenol-formaldehyde resin powder are mixed evenly to form mixed powder, by mixture
Powder is mixed with premix obtained in A1 step, is uniformly mixed and is formed coarse sand material；
A3. coarse sand material screen material: first passing through 12 mesh screens for coarse sand material obtained in A2 step and carry out the first sieve and expect, removal dough,
Expect block after by coarse sand material temperature T be 20 DEG C, humidityIt is parked under conditions of being 60, storage period t1 is 2h, using 14 meshes
Net carries out second sieve material removal dough, material block, finally obtains molding mass；
Moulding process the following steps are included:
B1. molding mass is laid with: taking three layers of molding mass obtained in step A3 point to be laid in molding die, and adjacent two layers one-tenth
The modified glass fiber mesh of liquid phenolic resin submergence is placed through between moulding mixture, the content w of phenolic resin in glass fiber mesh
It is 35%；
B2. it is press-formed: being laid with molding molding mass surface in step bl is determined and be laid with the trade mark scraps of paper, then on top layer molding mass surface
Grinding wheel washer is placed at center, and then extrusion forming obtains forming grinding wheel, and briquetting pressure P is 150bar, and dwell time t2 is 1.5s,
The cross-sectional view of molding die and finished product grinding wheel is as shown in Figure 1；
B3. drying hardening: molding obtained in step B2 is carried out to be dried to forming grinding wheel hardening, finished product grinding wheel is obtained, dries
Temperature and time is as shown in table 2.
Embodiment 2: a kind of big outer diameter resin wheel, the present embodiment the difference from embodiment 1 is that, recipe ingredient content is not
Technological parameter same, in preparation method is different.The formula concrete component content of the present embodiment as shown in table 1, in preparation method
Technological parameter is as shown in table 3.
Embodiment 3: a kind of big outer diameter resin wheel, the present embodiment the difference from embodiment 1 is that, recipe ingredient content is not
Technological parameter same, in preparation method is different.The formula concrete component content of the present embodiment as shown in table 1, in preparation method
Technological parameter is as shown in table 3.
Embodiment 4: a kind of big outer diameter resin wheel, the present embodiment the difference from embodiment 1 is that, recipe ingredient content is not
Technological parameter same, in preparation method is different.The formula concrete component content of the present embodiment as shown in table 1, in preparation method
Technological parameter is as shown in table 3.
Embodiment 5: a kind of big outer diameter resin wheel, the present embodiment the difference from embodiment 1 is that, recipe ingredient content is not
Technological parameter same, in preparation method is different.The formula concrete component content of the present embodiment as shown in table 1, in preparation method
Technological parameter is as shown in table 3.
1 embodiment 1-5 recipe ingredient content table (1 part=1g) of table
2 forming grinding wheel drying temperature of table and timetable
The process parameter table of 3 embodiment 1-5 of table
Comparative example 1: this comparative example the difference from embodiment 1 is that, in formula do not contain white fused alumina.
Comparative example 2: this comparative example the difference from embodiment 1 is that, in formula do not contain Brown Alundum.
Comparative example 3: this comparative example the difference from embodiment 1 is that, in formula do not contain ice crystal.
Comparative example 4: this comparative example the difference from example 2 is that, in formula do not contain potassium sulfate.
Comparative example 5: the difference of this comparative example and embodiment 3 is, phenol-formaldehyde resin powder and liquid phenolic resin in bonding agent
It is thermoplastic phenolic resin.
Comparative example 6: the difference of this comparative example and embodiment 3 is, phenol-formaldehyde resin powder and liquid phenolic resin in bonding agent
It is thermosetting phenolic resin.
Comparative example 7: the difference of this comparative example and embodiment 4 is, in A3 step, coarse sand material without parking, directly into
Row twice expect by sieve.
Comparative example 8: the difference of this comparative example and embodiment 5 is that glass fiber mesh is without phenolic resin modified.
Performance test:
(1) bending strength test
Finished sand wheel in Example 1-5, comparative example 1-6 is as test sample, using three point bending test method to test
Sample carries out bending strength test, and test result is as shown in table 4.
4 embodiment 1-5 of table, comparative example 1-8 flexural strength data table
(2) resistance to grinding performance test
Using high speed abrasive wheel cutting machine SQ-40-1 to finished product grinding wheel obtained in embodiment 1-5 and comparative example 1-8 to 160mm*
The 45# seamless steel pipe of 150mm (outer diameter * internal diameter) is cut, and cuts grinding condition and grinding performance is as shown in table 5.
The grinding performance tables of data of 5 embodiment 1-5 of table, comparative example 1-8
It the implementation principle of the present embodiment and has the beneficial effect that using Brown Alundum, white fused alumina as abrasive material, enhances the hard of grinding wheel
Abrasive material is carried out secure bond as bonding agent by degree, toughness and grinding performance, phenol-formaldehyde resin powder and liquid phenolic resin, reduces grinding wheel
Brittleness is to improve the bending strength of grinding wheel.Supporting material using ice crystal and potassium sulfate as grinding wheel improves wheel strength
Self-sharpening and cutting efficiency, to extend the service life of grinding wheel.Two layers of phenolic resin is laid with when abrasive wheel forming in molding mass
Modified glass-fiber net reduces the brittleness of resin wheel, improves the structural strength of resin wheel, toughness, bending strength and heat-resisting
Performance extends the service life of resin wheel so that comprehensive improve resin wheel items mechanical property.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of big outer diameter resin wheel, which is characterized in that the component including following parts by weight:
480-520 parts of white fused alumina；
2400-2600 parts of Brown Alundum；
280-320 parts of bonding agent；
95-105 parts of ice crystal；
135-145 parts of potassium sulfate；
Wherein bonding agent includes phenol-formaldehyde resin powder and liquid phenolic resin, and the weight fraction ratio of phenol-formaldehyde resin powder and liquid phenolic resin is
2:1-3:1。
2. big outer diameter resin wheel according to claim 1, it is characterised in that: the Brown Alundum includes that weight fraction ratio is
The corundum sand 30# and corundum sand 36# of 2:1.
3. big outer diameter resin wheel according to claim 1 or 2, it is characterised in that: the phenol-formaldehyde resin powder is thermoplasticity
Phenolic resin, the liquid phenolic resin are thermosetting phenolic resin.
4. big outer diameter resin wheel according to claim 1, it is characterised in that: further include the charcoal that parts by weight are 4-6 parts
It is black.
5. a kind of preparation method of the big outer diameter resin wheel as described in claim 1-4, which is characterized in that including mixing procedure
And moulding process, the mixing procedure the following steps are included:
A1. be blended premix: white fused alumina, Brown Alundum are mixed evenly to form abrasive material, added into abrasive material liquid phenolic resin and
Carbon black is uniformly mixed and forms premix；
A2. be blended coarse sand material: potassium sulfate, ice crystal and phenol-formaldehyde resin powder are mixed evenly to form mixed powder, by mixture
Powder is mixed with premix obtained in A1 step, is uniformly mixed and is formed coarse sand material；
A3. coarse sand material screen material: successively passing through 12 mesh for coarse sand material obtained in A2 step and 14 mesh screens carry out sieve material, finally
To molding mass；
The moulding process the following steps are included:
B1. molding mass is laid with: taking three layers of molding mass obtained in step A3 point to be laid in molding die, and adjacent two layers one-tenth
Glass fiber mesh is placed between moulding mixture；
B2. it is press-formed: being laid with molding molding mass surface in step bl is determined and be laid with the trade mark scraps of paper, then in molding mass centre of surface
Grinding wheel washer is placed, then extrusion forming obtains forming grinding wheel；
B3. drying hardening: forming grinding wheel obtained in step B2 is dried to forming grinding wheel hardening, obtains finished product grinding wheel.
6. the preparation method of big outer diameter resin wheel according to claim 5, it is characterised in that: in the A3 step, slightly
Sand material is parked under the conditions of temperature T1 is 20-25 DEG C, humidity φ is 60-70 by the sieving materials after 12 mesh screens, when parking
Between t1 be 2-24h, then carry out 14 mesh mesh screen material.
7. the preparation method of big outer diameter resin wheel according to claim 5, it is characterised in that: the glass fiber mesh is
Phenolic resin modified glass fiber mesh.
8. the preparation method of big outer diameter resin wheel according to claim 7, it is characterised in that: in the glass fiber mesh
Phenolic resin content w be 35-40%.
9. the preparation method of big outer diameter resin wheel according to claim 5, it is characterised in that: in the B2 step, add
Molded pressure P is 150-170bar, and dwell time t2 is 1.5-2.5s.
10. the preparation method of big outer diameter resin wheel according to claim 5, it is characterised in that: in the step S3, dry
Dry temperature T2 is 65-175 DEG C, drying time 25h.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977793A (en) * | 2019-12-20 | 2020-04-10 | 郑州九天工贸有限公司 | Resin grinding wheel and preparation method thereof |
| CN111941294A (en) * | 2020-07-20 | 2020-11-17 | 中铁隆昌铁路器材有限公司 | Grinding wheel for steel rail curved surface grinding vehicle and preparation method thereof |
| CN114260833A (en) * | 2021-12-31 | 2022-04-01 | 江苏邦富莱苏蒙新材料有限公司 | Large-diameter resin cutting sheet and hardening method |
| CN115008353A (en) * | 2022-07-04 | 2022-09-06 | 临沂市大鹏五金磨具有限公司 | Resin grinding wheel and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683724A (en) * | 2008-09-28 | 2010-03-31 | 廊坊菊龙五金磨具有限公司 | High-strength dry-type rail resin abrasive cutting wheel and preparation method thereof |
| CN102699834A (en) * | 2012-05-18 | 2012-10-03 | 曹现珂 | Novel fibre reinforced resin grinding wheel |
| CN103056786A (en) * | 2012-12-20 | 2013-04-24 | 郑州新安华砂轮有限公司 | Resin cutting disc and production method thereof |
| US20130337730A1 (en) * | 2012-06-06 | 2013-12-19 | Siddharth Srinivasan | Large diameter cutting tool |
| CN103522209A (en) * | 2013-10-31 | 2014-01-22 | 山东圣泉化工股份有限公司 | Resin grinding wheel |
| CN105563355A (en) * | 2015-12-29 | 2016-05-11 | 大冶市铜矿工业有限公司 | Grinding wheel for rapidly polishing surface of workpiece and preparation method of grinding wheel |
-
2019
- 2019-08-29 CN CN201910812611.9A patent/CN110497327A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683724A (en) * | 2008-09-28 | 2010-03-31 | 廊坊菊龙五金磨具有限公司 | High-strength dry-type rail resin abrasive cutting wheel and preparation method thereof |
| CN102699834A (en) * | 2012-05-18 | 2012-10-03 | 曹现珂 | Novel fibre reinforced resin grinding wheel |
| US20130337730A1 (en) * | 2012-06-06 | 2013-12-19 | Siddharth Srinivasan | Large diameter cutting tool |
| CN103056786A (en) * | 2012-12-20 | 2013-04-24 | 郑州新安华砂轮有限公司 | Resin cutting disc and production method thereof |
| CN103522209A (en) * | 2013-10-31 | 2014-01-22 | 山东圣泉化工股份有限公司 | Resin grinding wheel |
| CN105563355A (en) * | 2015-12-29 | 2016-05-11 | 大冶市铜矿工业有限公司 | Grinding wheel for rapidly polishing surface of workpiece and preparation method of grinding wheel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977793A (en) * | 2019-12-20 | 2020-04-10 | 郑州九天工贸有限公司 | Resin grinding wheel and preparation method thereof |
| CN111941294A (en) * | 2020-07-20 | 2020-11-17 | 中铁隆昌铁路器材有限公司 | Grinding wheel for steel rail curved surface grinding vehicle and preparation method thereof |
| CN114260833A (en) * | 2021-12-31 | 2022-04-01 | 江苏邦富莱苏蒙新材料有限公司 | Large-diameter resin cutting sheet and hardening method |
| CN114260833B (en) * | 2021-12-31 | 2023-01-10 | 江苏邦富莱苏蒙新材料有限公司 | Large-diameter resin cutting sheet and hardening method |
| CN115008353A (en) * | 2022-07-04 | 2022-09-06 | 临沂市大鹏五金磨具有限公司 | Resin grinding wheel and preparation method thereof |
| CN115008353B (en) * | 2022-07-04 | 2024-01-23 | 临沂市大鹏五金磨具有限公司 | Resin grinding wheel and preparation method thereof |
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