CN107053023B - A kind of gum cement and preparation method thereof, hard grinding wheel and preparation method thereof - Google Patents
A kind of gum cement and preparation method thereof, hard grinding wheel and preparation method thereof Download PDFInfo
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- CN107053023B CN107053023B CN201710288183.5A CN201710288183A CN107053023B CN 107053023 B CN107053023 B CN 107053023B CN 201710288183 A CN201710288183 A CN 201710288183A CN 107053023 B CN107053023 B CN 107053023B
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- gum cement
- gum
- grinding wheel
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- 239000004568 cement Substances 0.000 title claims abstract description 63
- 238000000227 grinding Methods 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000003082 abrasive agent Substances 0.000 claims abstract description 20
- 239000006229 carbon black Substances 0.000 claims abstract description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 14
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 14
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- -1 vinylsiloxane Chemical class 0.000 claims abstract description 12
- 238000000748 compression moulding Methods 0.000 claims description 19
- 239000000080 wetting agent Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 8
- 239000007767 bonding agent Substances 0.000 claims description 7
- 238000004898 kneading Methods 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 30
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 229910000990 Ni alloy Inorganic materials 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000010935 stainless steel Substances 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 4
- 229910001315 Tool steel Inorganic materials 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 230000001404 mediated effect Effects 0.000 description 6
- 238000003801 milling Methods 0.000 description 6
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 238000010057 rubber processing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011345 viscous material Substances 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- BPYFPNZHLXDIGA-UHFFFAOYSA-N diphenylsilicon Chemical compound C=1C=CC=CC=1[Si]C1=CC=CC=C1 BPYFPNZHLXDIGA-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—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
- B24D3/22—Rubbers synthetic or natural
- B24D3/24—Rubbers synthetic or natural for close-grained structure
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a kind of gum cements and preparation method thereof, hard grinding wheel and preparation method thereof, belong to grinding materials and grinding tool technical field.Gum cement of the invention is made: 100 parts of vinylsiloxane rubber, 40~60 parts of carbon black, 3~6 parts of diphenyl silanediol, 4~8 parts of zinc stearate and 2~3 parts of hydroxy terminated fluorosilicone oil of the raw material for including following parts by weight.Utilize the characteristics such as the high intensity of vinylsiloxane rubber, soft, intensity with higher, preferable toughness after the grinding wheel being prepared using gum cement of the invention, the features such as abrasive article structures are close, the porosity is small, it can be used for the machining such as fine grinding, polishing and cutting of the metals such as stainless steel, aluminium alloy, nickel alloy, tool steel, gained workpiece surface quality is good.Gum cement of the invention, forming temperature is lower, and high temperature resistant, acid and alkali-resistance after molding, is suitable for multiple grinding, good to abrasive material holding power, has universality.
Description
Technical field
The present invention relates to a kind of gum cements and preparation method thereof, hard grinding wheel and preparation method thereof, belong to abrasive material mill
Has technical field.
Background technique
Superhard material grinding tool is widely used in field of machining, such as automobile, electronics, refrigeration, tool, LED row
The machining of industry.Superhard material grinding tool especially diamond and cubic boron nitride concretion abrasive wheel, in current grinding skill
Occupy leading position in art, extra hard material grinding wheel is that bonding agent is added in abrasive material, manufactured more through green compact, drying and roasting
Hole body.The characteristic of extra hard material grinding wheel is mainly determined by factors such as abrasive material, granularity, bonding agent, hardness, tissue, shape and size
It is fixed.The common bonding agent of superhard material wheel adopted at present has metallic bond, vitrified bond and resinoid bond etc., obtains sand
Hardness mostly with higher is taken turns, in soft viscous materials such as grinding stainless steel, aluminium alloy, nickel alloys, often will appear viscous bits, mill
Motionless, phenomena such as lines is poor.It is exactly to be ground using softer bonded abrasive tool for the best solution of soft viscous material, leads to
The comparison of multiple material is crossed, it is preferable not only high temperature resistant, but also resistance to that discovery rubber, which belongs to half organic, half inorganic polymeric elastomer,
The rubber of severe cold, its resistance to ag(e)ing, electrical insulating property are also very good, and elasticity is good, have stronger tensile strength, are prepared into
Grinding wheel can alleviate grinding wheel biggish grinding force and grinding heat in grinding process, can be effectively solved wheel face scratch and
The problems such as lines is poor improves the surface quality of workpiece, reduces rejection rate.
Summary of the invention
The object of the present invention is to provide a kind of gum cements, can be effectively solved wheel face scuffing and lines difference etc.
Problem improves the surface quality of workpiece, reduces rejection rate.
The present invention also provides a kind of preparation methods of above-mentioned gum cement, hard grinding wheel and preparation method thereof.
In order to achieve the goal above, technical solution used by gum cement of the invention is:
A kind of gum cement is made of the raw material for including following parts by weight: 100 parts of vinylsiloxane rubber, carbon black 40~
60 parts, 3~6 parts of diphenyl silanediol, 4~8 parts of zinc stearate and 2~3 parts of hydroxy terminated fluorosilicone oil.
Gum cement of the invention, as main structure material, passes through carbon black, diphenyl silicon using vinylsiloxane rubber
The cooperation of glycol, zinc stearate and hydroxy terminated fluorosilicone oil is made, and each raw material mutually acts synergistically, makes in the proportional region of restriction
Compounding mixture meets the performance requirements such as the viscosity, intensity and hardness of bonding agent, and wherein it is strong to improve pulling apart for vulcanized rubber for carbon black
The physical mechanical properties such as degree, stretching strength, wearability, diphenyl silanediol as reinforcing agent enhance rubber heat resistance and
Cohesive strength, zinc stearate improve the processing and processability of rubber, increase the plasticity of rubber, accelerate strand
Fracture, makes to tend towards stability between strand, and hydroxy terminated fluorosilicone oil can prevent rubber from sending out during processing, storage or transport
Raw aging phenomenon, while promoting viscosity when rubber is heated.
Using characteristics such as the high intensity of vinylsiloxane rubber, softs, make to be prepared into using gum cement of the invention
Intensity with higher, preferable toughness after the grinding wheel arrived, the features such as abrasive article structures are close, the porosity is small, can be used for stainless steel,
The machining such as fine grinding, polishing and cutting of the metals such as aluminium alloy, nickel alloy, tool steel, gained workpiece surface quality is good, can be
Surface of metal product is ground out fine and smooth uniform refraction lathe work.Gum cement of the invention belongs to half organic, half inorganic poly-
Elastomer is closed, is preferable not only high temperature resistant, but also cold-resistant rubber, its resistance to ag(e)ing, electrical insulating property are also very good, and form
Temperature is lower, high temperature resistant, acid and alkali-resistance after molding, is suitable for multiple grinding, good to abrasive material holding power, has universality.
Gum cement raw material of the present invention is easy to get, at low cost, and using simply, just doing conveniently, being easily adapted to industrialized production makes
With.
Preferably, the gum cement is by including that the raw material of following parts by weight is made: 100 parts of vinylsiloxane rubber,
45 parts of carbon black, 4 parts of diphenyl silanediol, 6 parts of zinc stearate and 2.5 parts of hydroxy terminated fluorosilicone oil.
Preferably, the gum cement is the particle that partial size is not more than 10 μm.
Preferably, the vinylsiloxane rubber is ethylene methacrylic silicon rubber.
Technical solution used by gum cement of the invention are as follows:
A kind of preparation method of above-mentioned gum cement, comprising the following steps: each raw material of formula ratio is taken to be mixed, mixed
Refining, be then allowed to stand, crush to get.
The preparation method of gum cement of the invention, using vinylsiloxane rubber as main structure material, by carbon black,
Diphenyl silanediol, zinc stearate and hydroxyl fluosilicic acid cooperate, by mixing be can occur between raw material it is physico
Reaction is learned, compound is formed.Wherein carbon black improves the Physical Mechanicals such as breaking strength, stretching strength, the wearability of vulcanized rubber
Can, diphenyl silanediol enhances the heat resistance and cohesive strength of rubber as reinforcing agent, and zinc stearate improves rubber
Processing and processability, increase the plasticity of rubber, accelerate molecule chain break, make to tend towards stability between strand,
Hydroxy terminated fluorosilicone oil can prevent rubber processing, storage or transport during aging phenomenon occurs, while promoted rubber by
Viscosity when hot.
Each raw material need to only be mixed, be kneaded preparation by the preparation method of new type rubber bonding agent of the invention, subsequent to pass through powder
The broken gum cement being had excellent performance to obtain the final product than traditional resinoid bond, and the preparation method of gum cement of the invention
It is easy to operate, it is easy to accomplish, it is convenient for industrial application.
Described be mixed into is mediated in kneader.The kneader can use biaxial kneader.Preferably, the kneading
Mixing speed be 40~70r/min, the time be 3~5h.
Preferably, described to be kneaded as successively from room temperature to 35~45 DEG C of 50~80min of heat preservation, then it is warming up to 130~
200 DEG C of 20~40min of heat preservation stop heating.It is 20~40min from room temperature to 35~45 DEG C of time, from 35~45 DEG C
The time for being warming up to 130~200 DEG C is 100~150min.
Also system is stirred continuously while mixing, mixing speed is 40~70r/min.Preferably, described mixed
Refining can carry out in kneader.
Preferably, the time of the standing is 20~30h.Standing after raw rubber is cooked crosslinks inner part subchain.
Preferably, the time of the crushing is 4~6h.Crushing can carry out in airflow milling.
Preferably, the material obtained after crushing can also be sieved.It is further preferred that the mesh of the sieve used when sieving
Number is not more than 300 mesh, such as can be 300 mesh, 1340 mesh.It is needed to can satisfy the granularity of resulting gum cement
It wants, can repeatedly be refined, be sieved.
Preferably, the granularity for the gum cement being prepared using the above method is no more than 10 μm.
Technical program of the present invention also lies in: a kind of hard grinding wheel using above-mentioned gum cement.
Above-mentioned hard grinding wheel can be prepared using the preparation method of rubber bonded grinding wheel in the prior art, can also
To be prepared using method comprising the following steps: above-mentioned gum cement being mixed with abrasive material, wetting agent, is pressed at 200~300 DEG C
Be made type, stand to get.
The compression moulding is that compression moulding is carried out as follows on hot press: the pressure maintaining at 1.5~2.5MPa
100~150s, then deflate 3s, then 250~350s of pressure maintaining at 3.5~4.5MPa, and then deflate 5s, then at 5~7MPa
3000~4000s of pressure maintaining.
Deflation is exactly that the pressing plate on hot press is made to leave grinding tool.Deflate in compacting can be such that internal reaction generates
Or compacting when assemble gas discharge.
The time of standing after compression moulding is 20~30h.It stands and is preferably crosslinked and polymerize convenient for internal macromolecular chain,
Enhance the intensity of grinding wheel.Standing can carry out at normal temperature.
Preferably, the abrasive material is the mixture of diamond and green silicon carbide.Institute's gum cement, diamond, green carbonization
The mass ratio of silicon is 100:56:46.The wetting agent is dimethylformamide.Wetting agent can make abrasive material and bonding agent better
In conjunction with.
Specific embodiment
Below in conjunction with specific embodiment, further description of the technical solution of the present invention.
In each embodiment when preparing hard grinding wheel, used abrasive material is the mixture of diamond and green silicon carbide, gold
The mass ratio of hard rock and green silicon carbide is 56:46, and used wetting agent is dimethylformamide.Sand is being prepared in each embodiment
When wheel, the deflation is exactly that the pressing plate on hot press is made to leave grinding tool.
Embodiment 1
The gum cement of the present embodiment is made of raw material from the following weight: 100 parts of methyl vinyl silicone rubber, carbon black
45 parts, 4 parts of diphenyl silanediol, 6 parts of zinc stearate and 2.5 parts of hydroxy terminated fluorosilicone oil.
The preparation method of the gum cement of the present embodiment, comprising the following steps:
1) each raw material of formula ratio is taken to be put into kneader, Double shaft stirring speed be 56r/min under conditions of stirring 5h into
Row is mediated；
2) material after kneading is continued to be stirred with the Double shaft stirring speed of 56r/min in kneader, and simultaneously
It is kneaded, the method for mixing are as follows: with the time of 30min by material from room temperature to 40 DEG C, keep the temperature 60min, then use
Material is warming up to 160 DEG C from 40 DEG C by the time of 120min, keeps the temperature 30min, then stops heat preservation；
3) obtained material will be kneaded to stand for 24 hours, be then placed in airflow milling and crush 5h, finally 300 mesh 3 times excessively, i.e.,
?.
The hard grinding wheel of the present embodiment is prepared using above-mentioned gum cement, preparation method the following steps are included:
Above-mentioned gum cement is mixed with abrasive material, wetting agent, compression moulding under conditions of 250 DEG C on hot press, so
The grinding wheel of compression moulding is put into baking oven afterwards stand for 24 hours to get；The mass ratio of the gum cement, abrasive material and wetting agent
For 100:102:12；The compression moulding is carried out according to the following conditions: in 2MPa pressure maintaining 120s, then deflate 3s, then in 4MPa
Pressure maintaining 300s, deflation 5s finally stop pressurization then in 6MPa pressure maintaining 3600s.
Embodiment 2
The gum cement of the present embodiment is made of raw material from the following weight: 100 parts of methyl vinyl silicone rubber, carbon black
40 parts, 5 parts of diphenyl silanediol, 4 parts of zinc stearate and 3 parts of hydroxy terminated fluorosilicone oil.
The preparation method of the gum cement of the present embodiment, comprising the following steps:
1) each raw material of formula ratio is taken to be put into kneader, Double shaft stirring speed be 56r/min under conditions of stirring 5h into
Row is mediated；
2) material after kneading is continued to be stirred with the Double shaft stirring speed of 56r/min in kneader, and simultaneously
It is kneaded, the method for mixing are as follows: with the time of 30min by material from room temperature to 40 DEG C, keep the temperature 60min, then use
Material is warming up to 160 DEG C from 40 DEG C by the time of 120min, keeps the temperature 30min, then stops heat preservation；
3) obtained material will be kneaded to stand for 24 hours, be then placed in airflow milling and crush 5h, finally 300 mesh 3 times excessively, i.e.,
?.
The hard grinding wheel of the present embodiment is prepared using above-mentioned gum cement, preparation method the following steps are included:
Above-mentioned gum cement is mixed with abrasive material, wetting agent, compression moulding under conditions of 250 DEG C on hot press, so
The grinding wheel of compression moulding is put into baking oven afterwards stand for 24 hours to get；The mass ratio of the gum cement, abrasive material and wetting agent
For 100:102:12；The compression moulding is carried out according to the following conditions: in 2MPa pressure maintaining 120s, then deflate 3s, then in 4MPa
Pressure maintaining 300s, deflation 5s finally stop pressurization then in 6MPa pressure maintaining 3600s.
Embodiment 3
The gum cement of the present embodiment is made of raw material from the following weight: 100 parts of methyl vinyl silicone rubber, carbon black
60 parts, 6 parts of diphenyl silanediol, 8 parts of zinc stearate and 2 parts of hydroxy terminated fluorosilicone oil.
The preparation method of the gum cement of the present embodiment, comprising the following steps:
1) each raw material of formula ratio is taken to be put into kneader, Double shaft stirring speed be 56r/min under conditions of stirring 5h into
Row is mediated；
2) material after kneading is continued to be stirred with the Double shaft stirring speed of 56r/min in kneader, and simultaneously
It is kneaded, the method for mixing are as follows: with the time of 30min by material from room temperature to 40 DEG C, keep the temperature 60min, then use
Material is warming up to 160 DEG C from 40 DEG C by the time of 120min, keeps the temperature 30min, then stops heat preservation；
3) obtained material will be kneaded to stand for 24 hours, be then placed in airflow milling and crush 5h, finally 300 mesh 3 times excessively, i.e.,
?.
The hard grinding wheel of the present embodiment is prepared using above-mentioned gum cement, preparation method the following steps are included:
Above-mentioned gum cement is mixed with abrasive material, wetting agent, compression moulding under conditions of 250 DEG C on hot press, so
The grinding wheel of compression moulding is put into baking oven afterwards stand for 24 hours to get；The mass ratio of the gum cement, abrasive material and wetting agent
For 100:102:12；The compression moulding is carried out according to the following conditions: in 2MPa pressure maintaining 120s, then deflate 3s, then in 4MPa
Pressure maintaining 300s, deflation 5s stop pressurization then in 6MPa pressure maintaining 3600s.
Embodiment 4
The gum cement of the present embodiment is made of raw material from the following weight: 100 parts of methyl vinyl silicone rubber, carbon black
50 parts, 3 parts of diphenyl silanediol, 5 parts of zinc stearate and 2.7 parts of hydroxy terminated fluorosilicone oil.
The preparation method of the gum cement of the present embodiment, comprising the following steps:
1) each raw material of formula ratio is taken to be put into kneader, Double shaft stirring speed be 40r/min under conditions of stirring 4h into
Row is mediated；
2) material after kneading is continued to be stirred with the Double shaft stirring speed of 40r/min in kneader, and simultaneously
It is kneaded, the method for mixing are as follows: with the time of 20min by material from room temperature to 35 DEG C, keep the temperature 80min, then use
Material is warming up to 130 DEG C from 35 DEG C by the time of 100min, keeps the temperature 40min, then stops heat preservation；
3) obtained material will be kneaded and stands 20h, be then placed in airflow milling and crush 4h, finally cross 300 meshes, repeat
Crush, the process 3 times of sieving to get.
The hard grinding wheel of the present embodiment is prepared using above-mentioned gum cement, preparation method the following steps are included:
Above-mentioned gum cement is mixed with abrasive material, wetting agent, compression moulding under conditions of 200 DEG C on hot press, so
Afterwards by the grinding wheel of compression moulding be put into baking oven stand 30h to get；The mass ratio of the gum cement, abrasive material and wetting agent
For 100:102:12；The compression moulding is carried out according to the following conditions: in 1.5MPa pressure maintaining 150s, then deflate 3s, then
4.5MPa pressure maintaining 250s, deflation 5s finally stop pressurization then in 7MPa pressure maintaining 3000s.
Embodiment 5
The gum cement of the present embodiment is made of raw material from the following weight: 100 parts of methyl vinyl silicone rubber, carbon black
55 parts, 5.5 parts of diphenyl silanediol, 7 parts of zinc stearate and 2.3 parts of hydroxy terminated fluorosilicone oil.The partial size of gum cement is not more than 10 μ
m。
The preparation method of the gum cement of the present embodiment, comprising the following steps:
1) each raw material of formula ratio is taken to be put into kneader, Double shaft stirring speed be 70r/min under conditions of stirring 3h into
Row is mediated；
2) material after kneading is continued to be stirred with the Double shaft stirring speed of 70r/min in kneader, and simultaneously
It is kneaded, the method for mixing are as follows: with the time of 30min by material from room temperature to 45 DEG C, keep the temperature 50min, then use
Material is warming up to 200 DEG C from 45 DEG C by the time of 150min, keeps the temperature 20min, then stops heat preservation；
3) obtained material will be kneaded and stand 30h, be then placed in airflow milling and crush 6h, finally 1340 mesh 3 times excessively, i.e.,
?.
The hard grinding wheel of the present embodiment is prepared using above-mentioned gum cement, preparation method the following steps are included:
Above-mentioned gum cement is mixed with abrasive material, wetting agent, compression moulding under conditions of 300 DEG C on hot press, so
Afterwards by the grinding wheel of compression moulding be put into baking oven stand 20h to get；The mass ratio of the gum cement, abrasive material and wetting agent
For 100:102:12；The compression moulding is carried out according to the following conditions: in 2.5MPa pressure maintaining 100s, then deflate 3s, then
3.5MPa pressure maintaining 350s, deflation 5s finally stop pressurization then in 5MPa pressure maintaining 4000s.
Experimental example
The tensile strength of the grinding wheel of Examples 1 to 5 is detected on tensile-strength tester respectively, and passes through Rockwell apparatus
The hardness of the grinding wheel of each embodiment is detected, test result is shown in Table 1.
The tensile strength and hardness of the grinding wheel of 1 Examples 1 to 5 of table and comparative example
As can be seen from Table 1, the characteristics such as high intensity, the soft which has are combined using rubber of the invention
Intensity with higher, preferable toughness after the grinding wheel that agent is prepared, the features such as abrasive article structures are close, the porosity is small, can use
It is machined in fine grinding, polishing and cutting of the metals such as stainless steel, aluminium alloy, nickel alloy, tool steel etc., gained workpiece surface matter
It measures.It solves the problems, such as that vitrified bond grinds motionless, surface and sticks disk, improves grinding efficiency and grinding quality, reduce
Cost.
Claims (10)
1. a kind of gum cement, it is characterised in that: be made of the raw material for including following parts by weight: 100 parts of vinylsiloxane rubber,
40~60 parts of carbon black, 3~6 parts of diphenyl silanediol, 4~8 parts of zinc stearate and 2~3 parts of hydroxy terminated fluorosilicone oil.
2. gum cement according to claim 1, it is characterised in that: be made of the raw material for including following parts by weight: second
100 parts of alkenyl silicon rubber, 45 parts of carbon black, 4 parts of diphenyl silanediol, 6 parts of zinc stearate and 2.5 parts of hydroxy terminated fluorosilicone oil.
3. gum cement according to claim 1 or 2, it is characterised in that: the gum cement is not more than for partial size
10 μm of particle.
4. a kind of preparation method of gum cement as described in claim 1, it is characterised in that: match the following steps are included: taking
Each raw material just measured is mixed, is kneaded, be then allowed to stand, crush to get.
5. the preparation method of gum cement according to claim 4, it is characterised in that: it is described to be mixed into kneading, it mediates
Mixing speed be 40~70r/min, the time be 3~5h.
6. the preparation method of gum cement according to claim 4, it is characterised in that: described be kneaded is from room temperature
To 35~45 DEG C of 50~80min of heat preservation, then 130~200 DEG C of 100~150min of heat preservation are warming up to, stop heating.
7. the preparation method of gum cement according to claim 4, it is characterised in that: the mixing speed of the mixing is
40~70r/min.
8. the preparation method of gum cement according to claim 4, it is characterised in that: the time of the standing be 20~
30h。
9. a kind of hard grinding wheel using gum cement as described in claim 1.
10. a kind of preparation method of hard grinding wheel as claimed in claim 9, characterized by the following steps: by rubber
Bonding agent is mixed with abrasive material, wetting agent, in 200~300 DEG C of compression mouldings, stand to get.
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| CN201710288183.5A CN107053023B (en) | 2017-04-27 | 2017-04-27 | A kind of gum cement and preparation method thereof, hard grinding wheel and preparation method thereof |
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| CN107825309A (en) * | 2017-09-15 | 2018-03-23 | 江苏闽江矿业有限公司 | A kind of preparation method of ground glass emery wheel |
| CN109810485B (en) * | 2019-01-29 | 2022-04-15 | 天津佐源新材料科技有限公司 | Graphite/elastic resin composite particle, preparation method thereof and application thereof in manufacturing polishing wheel |
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| JP2711621B2 (en) * | 1992-07-16 | 1998-02-10 | 信越化学工業株式会社 | Heat resistant silicone rubber composition |
| CN1206056A (en) * | 1998-07-09 | 1999-01-27 | 陈志华 | Grinder for paper-making pulper |
| CN2813206Y (en) * | 2005-08-08 | 2006-09-06 | 何青 | Rubber abrasive wheel |
| CN101781464A (en) * | 2010-03-22 | 2010-07-21 | 吴江朗科化纤有限公司 | Preparation method of silicon rubber foam material |
| CN103013130A (en) * | 2012-12-30 | 2013-04-03 | 江苏天辰硅材料有限公司 | Silicon rubber and preparation method thereof |
| CN103333499A (en) * | 2013-06-21 | 2013-10-02 | 江苏天辰硅材料有限公司 | Silicon rubber for high-temperature-resistant mold and preparation method of silicon rubber |
| CN103360771B (en) * | 2013-07-09 | 2015-10-21 | 东莞市朗晟硅材料有限公司 | Low pressure sealing inflaming retarding high-temperature sulphurated siliastic and preparation method thereof |
| CN103980715A (en) * | 2014-04-30 | 2014-08-13 | 贵州航天精工制造有限公司 | Method for preparing rubber clamp fluorosilicone rubber material |
| CN104725865A (en) * | 2014-12-17 | 2015-06-24 | 苏州锦腾电子科技有限公司 | Wear-resistant and high-temperature resistant silicone rubber and preparation method thereof |
| CN106349716B (en) * | 2016-09-14 | 2019-04-23 | 东莞市朗晟硅材料有限公司 | A kind of fluorinated silicone rubber gross rubber and preparation method thereof |
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