CN107414688A - A kind of rail polishing emery wheel - Google Patents
A kind of rail polishing emery wheel Download PDFInfo
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- CN107414688A CN107414688A CN201710728443.6A CN201710728443A CN107414688A CN 107414688 A CN107414688 A CN 107414688A CN 201710728443 A CN201710728443 A CN 201710728443A CN 107414688 A CN107414688 A CN 107414688A
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- Prior art keywords
- emery wheel
- rail
- phenolic resin
- rail polishing
- parts
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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
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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
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/02—Wheels in one piece
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a kind of emery wheel and preparation method thereof, more particularly to a kind of rail polishing emery wheel emery wheel and preparation method thereof, belong to emery wheel technical field.Matrix and grinding body should be included, the grinding body includes the component of following parts by weight：Abrasive material：100 110 parts, phenol-formaldehyde resin modified liquid：5 10 parts, modified phenolic resin cosmetics：10 15 parts, filler：25 35 parts.Rail polishing emery wheel of the present invention is modified using nanometer palygorskite, the heat resistance of phenolic resin can be improved, meanwhile, nano material is mixed with high polymer, the performances such as the toughness, intensity and high temperature resistant of polymeric material can be improved, at the same make up conventional rigid particle can not simultaneously activeness and quietness the shortcomings that.
Description
Technical field
The present invention relates to a kind of emery wheel and preparation method thereof, more particularly to a kind of rail polishing emery wheel emery wheel and its preparation side
Method, belong to emery wheel technical field.
Background technology
For the population above city of China 500,000 up to 245, middle and long distance passenger flow is larger at present, wherein 80% need to be held by railway
Load.With the development smoothly and faster of national economy and regional economy, whole society personnel, goods and materials are necessarily driven to accelerate flowing, it is passenger-cargo
Transportation demand has a high potential, quality requirement increasingly improves.Accelerating The Construction high-speed railway, improve railroad-transportation services ability and water
It is flat, it is fast-developing to promoting economic society, meet that growing passenger transport demand plays an important roll.In order to improve rail
The speed of service, rail polishing frequently with polishing locomotive, polish locomotive used in emery wheel be rail polishing emery wheel.Rail polishing sand
Wheel is a kind of very high special grinding apparatus of performance requirement, carries out vibration polishing using the end face of emery wheel during polishing, vertical direction
Pressure is pressurizeed using hydraulic regulation, and therefore, the load that emery wheel is born is very big, and is open work, it is necessary to which emery wheel has
The features such as intensity is high, wearability is good, grinding ratio is high, good weatherability, the abrasive material that especially emery wheel uses must compact structure, hot things
Rationality can be good, the bonding agent that selection intensity is high, wearability is good, so just can guarantee that emery wheel can bear the strength vibration of heavy load
Polishing, meet the requirement of rail polishing.
The content of the invention
The present invention be directed to the above-mentioned problems in the prior art, it is proposed that a kind of good combination property, can bear heavy burden
Rail polishing emery wheel of lotus and preparation method thereof.
The purpose of the present invention can be realized by following technical solution：A kind of rail polishing emery wheel, the rail polishing sand
Wheel includes matrix and grinding body, and the grinding body includes the component of following parts by weight：Abrasive material：100-110 parts, modified phenolic resin
Fat liquid：5-10 parts, modified phenolic resin cosmetics：10-15 parts, filler：25-35 parts.
The constituent and its parts by weight compatibility of wheel grinding body of the present invention are reasonable, and obtained wheel strength is high, hardness
Greatly, elasticity is good, heat-resist, self-sharpening is good, can bear the strength vibration polishing of heavy load, efficiency and surface smoothness compared with
It is good, it is not necessary to which that the reinforcement mesh of grinding body intensity is strengthened in increase inside grinding body, fully meets the requirement of rail polishing.
In a kind of above-mentioned rail polishing emery wheel, the abrasive material is made up of the composition of following percentage by weight：Semi-crisp corundum：
50-60%, single alundum：10-15%, carborundum：5-10%, surplus are white fused alumina.
Rail of the present invention polishes emery wheel to meet the polishing requirement of high intensity, and its abrasive material used is needed with structure cause
It is close, intensity is high, thermophysical property is good, Mohs' hardness height etc. requirement.The present invention selection semi-crisp corundum, single alundum, carborundum and
White fused alumina multiple grinding is used in mixed way, and the advantages of with reference to its each, the performance of emery wheel is optimal state, to meet high intensity
Split requirement.
Preferably, the granularity of abrasive material is 14-20 mesh.To rail carry out polish processing rail is more smoothed out, precision it is more preferable,
So the granularity of abrasive material is with regard to particularly important.Preferred size of the present invention be 14-20 mesh abrasive material, further preferred four kinds of mixer mills
The granularity of material is different value, and not only compactness is high, intensity is big for so obtained emery wheel, and the intensity effect polished is very good.
The present invention, as bonding agent, can overcome conventional resins resistance to using phenol-formaldehyde resin modified liquid and modified phenolic resin cosmetics
High-temperature behavior is poor, carburizing temperature is relatively low causes it phenol-formaldehyde resin modified can forgo tree be limited during practical application the defects of
High hazardous material in fat process, and its resistance to elevated temperatures has great lifting, meet grinding area central temperature and
Unlikely carbonization too early, therefore the service life of emery wheel made from improving, and the self-extinguishment of the resin simultaneously is good, nonirritant gas
Taste produces, and adhesion strength is higher than conventional resins.
In a kind of above-mentioned rail polishing emery wheel, the particle diameter of the modified phenolic resin cosmetics is 200-320 mesh.
Preferably, the preparation method of the modified phenolic resin cosmetics is：It is phenolic resin 1- by phenolic resin and quality
2% nanometer palygorskite is positioned on magnetic apparatus machine,massing, while carries out ultrasonic disperse, stir speed (S.S.) 1000-
1400r/min, ultrasonic disperse time are 5-6h.Nanometer palygorskite uniform particle is distributed in the polarity node of matrix resin Long carbon chain
On, filler reinforcement, increase bond energy can be played in resin, strengthens bonding interface, reduce free volume effect, so as to change comprehensively
The frictional behaviour of kind material.
Preferably, the nanometer palygorskite pre-processes by silane coupler, the silane coupler is KH-550.Adopt
Nanometer palygorskite is pre-processed with silane coupler, by increasing capacitance it is possible to increase the interface binding power of nano-particle and polymer, improve
Nano-particle dispersibility, the surface energy state of particle is reduced, eliminate the surface charge of particle, improve the affine of particle and organic phase
Power, weaken the surface polarity of particle.Meanwhile the hydroxyl of one end of KH-550 silane couplers and solid phase Palygorskite Nanometer is formed and divided
Son is combined, and the other end is combined with phenolic resin molecule, and such organic resin and inorganic nano palygorskite melts mutually to be handed over for one
Wrong netted system, enhance the performance of resin.
In a kind of above-mentioned rail polishing emery wheel, the preparation method of the phenol-formaldehyde resin modified liquid is：By modified phenolic resin
Cosmetics and the ethanol that quality is modified phenolic resin cosmetics 1-3% are merged, and phenol-formaldehyde resin modified liquid, stir speed (S.S.) are obtained after stirring
For 500-600r/min, mixing time 2-3h.
In a kind of above-mentioned rail polishing emery wheel, the filler is made up of the composition of following percentage by weight：Thermotropic liquid
It is brilliant：20-30%, graphene oxide：40-50%, surplus are Nano-meter SiO_22。
In a kind of above-mentioned rail polishing emery wheel, thermotropic liquid crystal is also added on the basis of phenol-formaldehyde resin modified.Heat
Cause property liquid crystal can form the fento with fiber-reinforcing effect.Liquid crystal polymer has liquid crystal and high molecular excellent properties concurrently, by
In the presence for the rigid mesomorphic unit largely closely piled up, excellent heat endurance, high-strength and high-modulus, low thermal expansion etc. are made it have
Excellent properties.Liquid crystal rigid molecule chain can under the conditions of flowing, shearing etc. orientations, it is high long so as to be formed in the polymer
Footpath than micro fiber.These sizes reach micron order and the fento of high length-diameter ratio is formed similar to skeleton in the composite
Enhancing structure, so as to undertake and dispersive stress and then play humidification.Further, since size is small, these fentos and base
The bond area of body resin is much bigger compared with macroscopic fibres, and this greatly enhances two alternate active forces.
In addition, the present invention is also added into a small amount of graphene oxide.Graphene carbon material with layer structure possesses excellent
Good self-lubricating property, and a member therein is used as, graphene oxide not only possesses and has self-lubricating function, also strengthens with nanometer
Effect, but due on its surface substantial amounts of hydrophilic functional groups make its hydrophily by force and lipophile is weak, reduce graphene oxide and exist
Dispersiveness in phenolic resin；Liquid crystal polymer is a kind of height with high strength and modulus, low expansion and self-reinforcing performance
Performance materials, using liquid crystal polymer modified graphene oxide, the hydrophily of graphene oxide can be reduced, improves itself and phenolic aldehyde
The compatibility of resin, strengthen the interfacial interaction of graphene oxide and phenolic resin, to utilize liquid crystal and graphene oxide
Various excellent properties, which reach collaboration, improves the mechanical performance of phenolic resin composite and the purpose of frictional behaviour.
In addition, Nano-meter SiO_22Addition, can with phenolic resin as matrix resin in chemical bond and, interface interaction raising, during abrasion not
Be also easy to produce crackle, caused tiny fragment can be also filled among the crackle of material, emery wheel roll effect under, surface is gradual
Lamellar structure is formed, material can be further worn out playing a protective role.
Preferably, the particle diameter of the filler is 200-320 mesh.
Another object of the present invention is the preparation method for providing a kind of above-mentioned rail polishing emery wheel, the preparation method bag
Include following steps：
Mixed ingredients：First semi-crisp corundum, single alundum, carborundum and white fused alumina are put into phenol-formaldehyde resin modified liquid and infiltrated,
Then by modified phenolic resin cosmetics and thermotropic liquid crystal, graphene oxide, Nano-meter SiO_22And semi-crisp corundum, monocrystalline after infiltration
Corundum, carborundum and white fused alumina uniformly mix；
Sieving：The feed particles that batch mixing is obtained are screened by sieve, granularity for 14-16 mesh particle i.e. as be used for into
The molding mass of type；
Shaping：Mould is assembled, is put into matrix, the molding mass of approrpiate wts is weighed, then puts it into mould
Shakeout, it is compressing to obtain emery wheel base；
Hardening：The emery wheel base of above-mentioned forming is dried in an oven, the temperature in baking oven from room temperature gradient increased temperature extremely
4-6 hours are incubated after 180-190 DEG C and then naturally cool to 50-60 DEG C and are come out of the stove, obtain rail polishing finished grinding wheel.
In a kind of above-mentioned preparation method of rail polishing emery wheel, in forming process, the press temperature is 80-90
DEG C, pressing pressure 20-30N/mm2, press time 30-40S.Press temperature is too low or the time is too short, and compacting is insufficient,
Grinding wheel performance does not reach requirement, is similarly obtained emery wheel substandard products.So press temperature, pressure and time are limited to by the present invention
The optimal rail polishing emery wheel of the performances such as density, intensity, hardness can be obtained in above range, after hardening.
In a kind of above-mentioned preparation method of rail polishing emery wheel, in hardening process, the gradient increased temperature is first from room
Temperature rise often raises 10 DEG C of insulation 1-2h to 80 DEG C, when then rising to 100 DEG C from 80 DEG C, and 10 are often raised when rising to 120 DEG C from 100 DEG C
DEG C insulation 2-3h, when rising to 175-185 DEG C from 120 DEG C, often raise 10 DEG C insulation 1-2h.Because thing can occur in hardening process
Reason and chemical change, when temperature rises to 80 DEG C or so, resin starts to melt, and just has moisture and steams, sclerous reaction starts；When
From when rising to 120 DEG C for 100 DEG C, the resin of melting crosslinks temperature, while can discharge the gases such as a large amount of ammonia gas and waters, from 130
When DEG C rising to 175-185 DEG C of final temperature, resin crosslinks are still arranged completely until fully hardened along with a large amount of ammonias
Go out, so soaking time must be just arranged in temperature-rise period to discharge gas, when temperature reaches most 175-185 DEG C of final temperature
When, the emery wheel being consolidated into good toughness firmly, but soaking time is unsuitable long, and resin otherwise will be caused to cross solidification, and intensity declines.
The present invention compared with prior art, has the following advantages that：
1st, the particle diameter compatibility of abrasive material, phenol-formaldehyde resin powder and filler is reasonable in the grinding body of rail polishing emery wheel of the present invention, mixes
Close it is more uniform, obtained emery wheel combination property is more preferable, more smoothed out with the rail after grinder buffing of the present invention, precision it is more preferable.
2nd, rail polishing emery wheel of the present invention is modified using nanometer palygorskite, can improve the heat resistance of phenolic resin,
Meanwhile mix nano material with high polymer, the performances such as the toughness, intensity and high temperature resistant of polymeric material can be improved, while more
Mend conventional rigid particle can not simultaneously activeness and quietness the shortcomings that.
3rd, rail polishing emery wheel preparation technology skill of the present invention is easy, reasonable, the cycle is short, and rationally setting can reach the present invention
Conditional parameter in the shaping and hardening process of grinding wheel performance requirement, be made the combination property such as density, intensity, hardness and toughness compared with
Good rail polishing emery wheel.
Embodiment
Rail abrasive grinding wheel of the present invention includes matrix and grinding body, and portion offers through hole and in matrix end face in the base
It is upper with some mounting posts for being uniformly surrounded on bore periphery, have in the matrix other end and some be uniformly surrounded on bore periphery
Connecting pole, matrix are connected by connecting pole and grinding body, and glass fiber is wound with grinding body lateral wall.
It is the specific embodiment of the present invention below, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Table 1：The component of rail polishing wheel grinding body in embodiment 1-5
Embodiment 1
Raw material is weighed by rail polishing emery wheel constituent and its parts by weight in the embodiment 1 of table 1, the grain of abrasive material in raw material
Degree is controlled in 60-80 mesh, and the particle diameter of modified phenolic resin cosmetics is 200-320 mesh, and the particle diameter of filler is 200-320 mesh；Again will mill
Material, which is put into phenol-formaldehyde resin modified liquid, to be infiltrated, and then uniformly mixes the abrasive material after modified phenolic resin cosmetics and filler and infiltration
Close；The feed particles that batch mixing is obtained are screened by sieve, and granularity is as the shaping for being molded for the particle of 14-16 mesh
Material；Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, be pressed into
Type obtains emery wheel base, wherein, press temperature is 80 DEG C, pressing pressure 20N/mm2, press time 30S；By forming
Emery wheel base is dried in an oven, and the temperature in baking oven first rises to 80 DEG C from room temperature gradient from room temperature, then rises to 100 from 80 DEG C
DEG C when often raise 10 DEG C insulation 1h, often raised when rising to 120 DEG C from 100 DEG C 10 DEG C insulation 2h, when rising to 175 DEG C from 120 DEG C,
10 DEG C of insulation 1h are often raised, 4 hours is incubated at 175 DEG C and then naturally cools to 50 DEG C and come out of the stove, obtain rail abrasive cut-off wheel finished product.
Embodiment 2
Raw material is weighed by rail polishing emery wheel constituent and its parts by weight in the embodiment 1 of table 1, the grain of abrasive material in raw material
Degree is controlled in 60-80 mesh, and the particle diameter of modified phenolic resin cosmetics is 200-320 mesh, and the particle diameter of filler is 200-320 mesh；Again will mill
Material, which is put into phenol-formaldehyde resin modified liquid, to be infiltrated, and then uniformly mixes the abrasive material after modified phenolic resin cosmetics and filler and infiltration
Close；The feed particles that batch mixing is obtained are screened by sieve, and granularity is as the shaping for being molded for the particle of 14-16 mesh
Material；Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, be pressed into
Type obtains emery wheel base, wherein, press temperature is 82 DEG C, pressing pressure 22N/mm2, press time 32S；By forming
Emery wheel base is dried in an oven, and the temperature in baking oven first rises to 80 DEG C from room temperature gradient from room temperature, then rises to 100 from 80 DEG C
DEG C when often raise 10 DEG C insulation 1h, often raised when rising to 120 DEG C from 100 DEG C 10 DEG C insulation 2h, when rising to 175 DEG C from 120 DEG C,
10 DEG C of insulation 1h are often raised, 4 hours is incubated at 175 DEG C and then naturally cools to 50 DEG C and come out of the stove, obtain rail abrasive cut-off wheel finished product.
Embodiment 3
Raw material is weighed by rail polishing emery wheel constituent and its parts by weight in the embodiment 3 of table 1, the grain of abrasive material in raw material
Degree is controlled in 60-80 mesh, and the particle diameter of modified phenolic resin cosmetics is 200-320 mesh, and the particle diameter of filler is 200-320 mesh；Again will mill
Material, which is put into phenol-formaldehyde resin modified liquid, to be infiltrated, and then uniformly mixes the abrasive material after modified phenolic resin cosmetics and filler and infiltration
Close；The feed particles that batch mixing is obtained are screened by sieve, and granularity is as the shaping for being molded for the particle of 14-16 mesh
Material；Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, be pressed into
Type obtains emery wheel base, wherein, press temperature is 85 DEG C, pressing pressure 25N/mm2, press time 35S；By forming
Emery wheel base is dried in an oven, and the temperature in baking oven first rises to 80 DEG C from room temperature gradient from room temperature, then rises to 100 from 80 DEG C
DEG C when often raise 10 DEG C insulation 1h, often raised when rising to 120 DEG C from 100 DEG C 10 DEG C insulation 2h, when rising to 175 DEG C from 120 DEG C,
10 DEG C of insulation 1h are often raised, 4 hours is incubated at 175 DEG C and then naturally cools to 50 DEG C and come out of the stove, obtain rail abrasive cut-off wheel finished product.
Embodiment 4
Raw material is weighed by rail polishing emery wheel constituent and its parts by weight in the embodiment 4 of table 1, the grain of abrasive material in raw material
Degree is controlled in 60-80 mesh, and the particle diameter of modified phenolic resin cosmetics is 200-320 mesh, and the particle diameter of filler is 200-320 mesh；Again will mill
Material, which is put into phenol-formaldehyde resin modified liquid, to be infiltrated, and then uniformly mixes the abrasive material after modified phenolic resin cosmetics and filler and infiltration
Close；The feed particles that batch mixing is obtained are screened by sieve, and granularity is as the shaping for being molded for the particle of 14-16 mesh
Material；Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, be pressed into
Type obtains emery wheel base, wherein, press temperature is 87 DEG C, pressing pressure 27N/mm2, press time 38S；By forming
Emery wheel base is dried in an oven, and the temperature in baking oven first rises to 80 DEG C from room temperature gradient from room temperature, then rises to 100 from 80 DEG C
DEG C when often raise 10 DEG C insulation 1h, often raised when rising to 120 DEG C from 100 DEG C 10 DEG C insulation 2h, when rising to 175 DEG C from 120 DEG C,
10 DEG C of insulation 1h are often raised, 4 hours is incubated at 175 DEG C and then naturally cools to 50 DEG C and come out of the stove, obtain rail abrasive cut-off wheel finished product.
Embodiment 5
Raw material is weighed by rail polishing emery wheel constituent and its parts by weight in the embodiment 5 of table 1, the grain of abrasive material in raw material
Degree is controlled in 60-80 mesh, and the particle diameter of modified phenolic resin cosmetics is 200-320 mesh, and the particle diameter of filler is 200-320 mesh；Again will mill
Material, which is put into phenol-formaldehyde resin modified liquid, to be infiltrated, and then uniformly mixes the abrasive material after modified phenolic resin cosmetics and filler and infiltration
Close；The feed particles that batch mixing is obtained are screened by sieve, and granularity is as the shaping for being molded for the particle of 14-16 mesh
Material；Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, be pressed into
Type obtains emery wheel base, wherein, press temperature is 90 DEG C, pressing pressure 30N/mm2, press time 40S；By forming
Emery wheel base is dried in an oven, and the temperature in baking oven first rises to 80 DEG C from room temperature gradient from room temperature, then rises to 100 from 80 DEG C
DEG C when often raise 10 DEG C insulation 1h, often raised when rising to 120 DEG C from 100 DEG C 10 DEG C insulation 2h, when rising to 175 DEG C from 120 DEG C, often
10 DEG C of insulation 1h of rise, are incubated 4 hours and then naturally cool to 50 DEG C and come out of the stove, obtain rail abrasive cut-off wheel finished product at 175 DEG C.
Comparative example 1
With differing only in for embodiment 1, in the comparative example rail polishing emery wheel phenolic resin without modification, its
He is same as Example 1, and here is omitted.
Comparative example 1
With differing only in for embodiment 1, comparative example rail polishing emery wheel uses common fillers, other and embodiment 1
Identical, here is omitted.
Comparative example 2
With differing only in for embodiment 1, in the comparative example rail polishing emery wheel phenolic resin without modification, its
He is same as Example 1, and here is omitted.
Comparative example 3
With differing only in for embodiment 1, the comparative example rail polishing emery wheel filler do not contain thermotropic liquid crystal, other with
Embodiment 1 is identical, and here is omitted.
Comparative example 4
With differing only in for embodiment 1, the comparative example rail polishing emery wheel filler do not contain graphene oxide, other with
Embodiment 1 is identical, and here is omitted.
Rail abrasive cut-off wheel made from above-described embodiment 1-5 and comparative example 1-3 is subjected to performance test, test result respectively
As shown in table 2.
Table 2：Rail abrasive cut-off wheel the performance test results made from embodiment 1-5 and comparative example 1-3
It can be seen that from the result of embodiment and comparative example, abrasive material, phenolic aldehyde tree in the grinding body of rail polishing emery wheel of the present invention
The particle diameter compatibility of cosmetics and filler is reasonable, and mixing is more uniform, and obtained emery wheel combination property is more preferable, with grinder buffing of the present invention
Rail afterwards more smoothes out, precision is more preferable.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, but simultaneously
Do not deviate by the spirit of the present invention or surmount scope defined in appended claims.
It is skilled to this area although having been made a detailed description to the present invention and being cited some specific embodiments
For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (9)
- The emery wheel 1. a kind of rail is polished, it is characterised in that the emery wheel includes matrix and grinding body, and the grinding body is by following heavy Measure the composition composition of number：Abrasive material：100-110 parts, phenol-formaldehyde resin modified liquid：5-10 parts, modified phenolic resin cosmetics：10-15 parts, Filler：25-35 parts.
- 2. a kind of rail polishing emery wheel according to claim 1, it is characterised in that the abrasive material is by following percentage by weight Composition composition：Semi-crisp corundum：50-60%, single alundum：10-15%, carborundum：5-10%, surplus are white fused alumina.
- 3. a kind of rail polishing emery wheel according to claim 1 or 2, it is characterised in that the granularity of the abrasive material is 14-20 Mesh.
- A kind of 4. high-intensity resin polishing rail special grinding wheel according to claim 1, it is characterised in that the modified phenol The preparation method of urea formaldehyde powder is：Phenolic resin and quality are positioned over magnetic apparatus for phenolic resin 1-2% nanometer palygorskite On machine,massing, while ultrasonic disperse is carried out, stir speed (S.S.) 1000-1400r/min, the ultrasonic disperse time is 5-6h.
- 5. a kind of rail polishing emery wheel according to claim 1 or 4, it is characterised in that the nanometer palygorskite passes through silicon Alkane coupling agent pre-processes, and the silane coupler is KH-550.
- A kind of 6. rail polishing emery wheel according to claim 1, it is characterised in that the particle diameter of the modified phenolic resin cosmetics For 200-320 mesh.
- 7. a kind of rail polishing emery wheel according to claim 1, it is characterised in that the filler is by following percentage by weight Composition composition：Thermotropic liquid crystal：20-30%, graphene oxide：40-50%, surplus are Nano-meter SiO_22。
- 8. a kind of rail polishing emery wheel according to claim 1 or 7, it is characterised in that the particle diameter of the filler is 200- 320 mesh.
- The emery wheel 9. a kind of rail is polished, it is characterised in that the preparation method comprises the following steps：Mixed ingredients：First semi-crisp corundum, single alundum, carborundum and white fused alumina are put into phenol-formaldehyde resin modified liquid and infiltrated, then By modified phenolic resin cosmetics and thermotropic liquid crystal, graphene oxide, Nano-meter SiO_22And semi-crisp corundum, the monocrystalline after infiltration are firm Beautiful, carborundum and white fused alumina uniformly mix；Sieving：The feed particles that batch mixing is obtained are screened by sieve, and granularity is as being molded for the particle of 14-16 mesh Molding mass；Shaping：Mould is assembled, is put into matrix, weighs the molding mass of approrpiate wts, then puts it into mould and shakeouts, It is compressing to obtain emery wheel base；Hardening：The emery wheel base of forming is dried in an oven, the temperature in baking oven is from room temperature gradient increased temperature to after 180-190 DEG C Then insulation 4-6 hours naturally cool to 50-60 DEG C and come out of the stove, obtain rail polishing finished grinding wheel.
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| CN201710728443.6A CN107414688B (en) | 2017-08-23 | 2017-08-23 | Rail grinding wheel |
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| CN201710728443.6A CN107414688B (en) | 2017-08-23 | 2017-08-23 | Rail grinding wheel |
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| CN107414688B CN107414688B (en) | 2020-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968221A (en) * | 2017-12-27 | 2019-07-05 | 山东圣泉新材料股份有限公司 | High-intensitive heavy duty grinding wheel and preparation method |
| WO2021036129A1 (en) * | 2019-08-28 | 2021-03-04 | 鄂州市兴方磨具有限公司 | Integrally molded sand roller and manufacturing method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588420A (en) * | 1982-07-22 | 1986-05-13 | Superior Finishers, Inc. | Methods of manufacturing abrasive articles |
| CN101386154A (en) * | 2008-09-28 | 2009-03-18 | 广东奔朗超硬材料制品有限公司 | Resin anchoring agent diamond grinding wheel and production method thereof |
| CN101659780A (en) * | 2008-08-26 | 2010-03-03 | 丁新生 | Compositely modified thermosetting phenol-formaldehyde resin powder |
| CN202137698U (en) * | 2011-05-25 | 2012-02-08 | 李冰湜 | Grinding wheel |
| CN104290042A (en) * | 2013-07-16 | 2015-01-21 | 宁波大华砂轮有限公司 | Anti-cracking and anti-knocking resin grinding wheel |
| CN104290043A (en) * | 2014-09-19 | 2015-01-21 | 宁波大华砂轮有限公司 | Track grinding wheel and preparation method thereof |
-
2017
- 2017-08-23 CN CN201710728443.6A patent/CN107414688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588420A (en) * | 1982-07-22 | 1986-05-13 | Superior Finishers, Inc. | Methods of manufacturing abrasive articles |
| CN101659780A (en) * | 2008-08-26 | 2010-03-03 | 丁新生 | Compositely modified thermosetting phenol-formaldehyde resin powder |
| CN101386154A (en) * | 2008-09-28 | 2009-03-18 | 广东奔朗超硬材料制品有限公司 | Resin anchoring agent diamond grinding wheel and production method thereof |
| CN202137698U (en) * | 2011-05-25 | 2012-02-08 | 李冰湜 | Grinding wheel |
| CN104290042A (en) * | 2013-07-16 | 2015-01-21 | 宁波大华砂轮有限公司 | Anti-cracking and anti-knocking resin grinding wheel |
| CN104290043A (en) * | 2014-09-19 | 2015-01-21 | 宁波大华砂轮有限公司 | Track grinding wheel and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 一机部郑州磨料磨具磨削研究所: "《磨料磨具人造超硬材料》", 30 April 1981 * |
| 何林: "《坡缕石及其微纳米材料的改性与工程应用》", 31 July 2012, 国防工业出版社 * |
| 康义等: "《有色金属工业绿色发展循环发展低碳发展 中国有色金属学会第九届学术年会论文集》", 30 September 2013, 中南大学出版社 * |
| 赵蕾，李林洪，李巧玲: "酚醛环氧树脂的改性研究进展", 《应用化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968221A (en) * | 2017-12-27 | 2019-07-05 | 山东圣泉新材料股份有限公司 | High-intensitive heavy duty grinding wheel and preparation method |
| WO2021036129A1 (en) * | 2019-08-28 | 2021-03-04 | 鄂州市兴方磨具有限公司 | Integrally molded sand roller and manufacturing method therefor |
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