CN110421494A - A kind of resin metallic composite mirror surface abrasive grinding wheel and preparation method thereof based on sol-gal process - Google Patents
A kind of resin metallic composite mirror surface abrasive grinding wheel and preparation method thereof based on sol-gal process Download PDFInfo
- Publication number
- CN110421494A CN110421494A CN201910716714.5A CN201910716714A CN110421494A CN 110421494 A CN110421494 A CN 110421494A CN 201910716714 A CN201910716714 A CN 201910716714A CN 110421494 A CN110421494 A CN 110421494A
- Authority
- CN
- China
- Prior art keywords
- grinding
- grinding wheel
- water
- mirror
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B24D3/02—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
- B24D3/32—Resins or natural or synthetic macromolecular compounds for porous or cellular structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/346—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties utilised during polishing, or grinding operation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The preparation method of the invention discloses a kind of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process, belongs to Precision Machining grinding and polishing field.During the preparation process, water-soluble resin is added in polyvinyl alcohol glue and obtain mixture glue, be then added to diadust, water-fast aluminium nitride micro mist, electrolytic copper powder, filler, additive dispersion mixing and prepare and prepare slurry in suspension；Slurry is poured into grinding wheel die and prepares grinding wheel and carries out repairing type and finishing.Polyvinyl alcohol and the mirror grinding grinding wheel of water-soluble resin mixture glue collosol and gel preparation have diamond distribution uniform in the present invention; the characteristics of capillary micropore penetrates through; it is added to the solvable aluminium nitride with waterproof coating; after mirror grinding grinding wheel surface layer aluminum nitride particle waterproof coating is ground off; hydrolysis of aluminium nitride, intensity decline, has the function of surface layer from dressing; and aluminium nitride waterproof coating protection inside mirror grinding grinding wheel, guarantee that mirror grinding grinding wheel internal intensity is stablized.
Description
Technical field
The invention belongs to Precision Machining grinding and polishing fields, are related to a kind of resin metallic composite mirrors based on sol-gal process
Face abrasive grinding wheel and preparation method thereof.
Background technique
Mirror grinding refers to that, through workpiece after grinding, surface roughness Ra is not more than 0.01 μm, and light such as mirror surface can be clear
Imaging, therefore claim mirror grinding.Mirror grinding is mainly abrasive grain micro- sword removal workpiece surface surplus, simultaneously because abrasive wear and become
It is blunt, friction, extruding, press polish and polishing action are generated on the surface of the workpiece.Therefore, whole realization mirror grinding takes two kinds to arrange
It applies, first is that carrying out extruding polishing with the elastic grinding wheel of gum cement using the grinding wheel of finer abrasive, and reaches mirror surface, this mirror
Face grinding roughly grind-will refine five processes of-half fine grinding-super grinding and mirror grinding, just reach mirror finish；One is adopt
It is carried out and is modified with slightly coarseness abrasive material, modified at a slow speed, abrasive material cutting blade is accomplished smooth, more flat, the grinding of wheel face finishing
Roughness is also lower afterwards.The main reason for this method reaches mirror surface is the excision effect of micro- sword.
Traditional method for manufacturing grinding wheel is powder mixing → sieving → drying → compacting → sintering, is easy to appear what object was mutually reunited
Problem, how to reduce abrasive grain abrasive tools internal flaw, guarantee grinding tool tissue uniformity be an extremely urgent matter of utmost importance, because
Polishing performance is directly affected for the uniformity of interior tissue.Traditional grinding tool exists simultaneously uses for a long time, what grinding tool was passivated
Problem, therefore, it is necessary to design mirror grinding grinding wheel with the function from dressing.
The patent of invention of Publication No. 106944939B disclose it is a kind of addition soluble resin material it is superhard from dressing
Fine grinding tool pellet and preparation method thereof dissolves " solubility " resin material on grinding tool surface layer by lapping liquid, between bonding agent
Hole is formed, playing reduces adhesive strength and its holding power to abrasive grain around, to reach the controllable dressing mill of automatic on-line
The purpose of tool, but this method is easy to generate pellet inside resin dissolution, causes to be swollen, intensity is caused to decline；Publication No.
The patent of invention of 104944956A discloses a kind of polycrystalline Nano diamond abrasive tool preparation method based on gel reaction, this method
Using the fine carry out gel of polypropylene, hardness is high, is suitable for the grinding stage；The patent of invention of Publication No. 108081159A discloses
A kind of polyvinyl acetal resin grinding tool organogel forming method, the gel method can not be suitable for water-based system, adopt simultaneously
With single resin, can not be carbonized to form capillary micropore.
To solve the problems, such as that diamond mirror grinding grinding wheel object mutually reunites, makes pore, from dressing, the present invention is using compound
Resin gel molding, a kind of resin sintering curing, another resin carbonation generate capillary micropore；Add the hydrolyzable of waterproof coating
Filler, in grinding process, mantle friction, waterproof coating is wiped off, filler hydrolysis, and bond strength decline is passivated Grain Falling Off, real
Existing surface is solvable under conditions of sharp, and grinding wheel inner stuffing will not hydrolyze, matrix strength is protected since waterproof coating is protected
Card.
Summary of the invention
The present invention by polyvinyl alcohol (PVA)+water-soluble resin lyogel make mirror grinding grinding wheel, avoid powder at
Type disperses non-uniform problem.The physical gel ability having first with PVA forms gel biscuit, water-soluble tree after sintering
Rouge solidification, PVA carbonization, water-soluble resin sintering curing temperature are also PVA carburizing temperature, and it is micro- to generate a large amount of capillarys after PVA carbonization
Hole, the hole generated compared to direct powder compacting addition pore creating material is closed pore, the capillary that this method generates in mirror grinding grinding wheel
Micropore is perforation micropore, strong to the absorbability of water, is added to the aluminium nitride that surface is coated with water-fast nanometer titanium dioxide silicon coating
Soluble powder filler, in grinding process, the silica of mirror grinding grinding wheel surface layer aln surface is worn, and aluminium nitride is ground
Liquid hydrolysis, surface bonding strength decline, passivation abrasive material fall off, and new abrasive material exposes, and keeps self-sharpening；Due to mirror grinding sand
Capillary micropore in wheel has water absorbing capacity, and the aluminium nitride of water-fast nanometer titanium dioxide silicon coating is coated with inside mirror grinding grinding wheel
It can avoid direct hydrolysis, keep the intensity of mirror grinding grinding wheel base body.
In order to achieve the above object, the present invention adopts the following technical scheme:
Step 1: preparation surface has the water-fast aluminium nitride powder of silica coating；
Step 2: diamond dust, water-fast aluminium nitride powder, electrolytic copper powder, filler, additive being dispersed in water, prepared
Obtain suspension；
Step 3: under 90 DEG C of water bath conditions, the in the mixed solvent that polyvinyl alcohol is dissolved in water and ethyl alcohol being obtained into polyvinyl alcohol
Glue adds water-soluble resin liquid in polyvinyl alcohol glue and obtains mixture glue, the polyvinyl alcohol glue in the mixture glue
The weight ratio of water and water-soluble resin liquid is 1:1~6；Mixture glue is added in suspension prepared by step 2, side is added
Side stirring, obtains material containing rubber cement；
Step 4: rubber cement material will be contained and poured into grinding wheel die, freezed 1~3 hour under the conditions of being placed in -25~-15 DEG C, thawed
It spontaneously dries 5~10 hours afterwards, green body is taken out from grinding wheel die, densification is then dry under the conditions of 45~65 DEG C
24~48 hours, the grinding wheel semi-finished product with fine pore are obtained after being sintered and cooled；
Step 5: grinding wheel shaping being carried out to the grinding wheel semi-finished product that step 4 obtains on grinding machine, then by the grinding wheel after repairing type
Semi-finished product are mounted on grinding machine, and machining area adds grinding fluid, and addition grinding fluid carries out the finishing of wheel grinding working face, the mill
The flow for cutting liquid is 100~500ml/min, and mirror grinding grinding wheel is prepared.
Further, the step 1 specifically:
By weight, 1~10 part of aluminium nitride powder and 50 parts of dehydrated alcohols are mixed, under water bath condition, are warming up to 40 DEG C,
It stirs evenly, obtains aluminium nitride alcohol dispersion liquid；By diluted 3~6 parts of ethyl orthosilicates of 30 parts of dehydrated alcohols and with 30 parts
Diluted 4~6 parts of ammonium hydroxide of dehydrated alcohol and 5 parts of water droplets are added in aluminium nitride alcohol dispersion liquid, and rate of addition is 1~2 drop/sec,
Then gel reaction 6 hours under the conditions of 35~45 DEG C, vacuum filtration, with dehydrated alcohol washed product 3 times, the product that will be obtained
It is placed in and spontaneously dries 12~24 hours under room temperature, then calcined 2 hours under the conditions of 300 DEG C, cross 200 meshes after cooling,
Obtain the water-fast aluminium nitride powder that surface has silica coating.Aluminium nitride can hydrolyze in water, in alkalinity or acidity
Under the conditions of, hydrolysis of aluminium nitride speed is adjusted, cladding layer of silicon dioxide can prevent aluminium nitride inside grinding wheel from hydrolyzing, and table
Surface layer aluminium nitride can hydrolyze under friction condition.
Further, the step 2 specifically:
By weight, by 5~10 parts 0.5~5 micron of diamond dust, 1~3 part of water-fast aluminium nitride powder, 10~30
Electrolytic copper powder, 5~10 parts of fillers and 1~5 part of additive of 200~1000 mesh of part are added in 20~50 parts of water, using planet
Formula ball mill is dispersed, and decentralized medium selects zirconium oxide microballoons, and suspension is prepared；The filler be Cu-cladding Al Rod,
Talcum powder, ice crystal, cerium oxide, alumdum, calcium carbonate, calcium oxide, zinc oxide, barium sulfate, magnesia, appointing in molybdenum disulfide
Meaning is one or several kinds of；The additive includes wetting agent, dispersing agent, organic silicon defoamer and dimethyl-silicon oil release agent,
Wetting agent additive amount is 0.1~1wt% of the dry weight of material containing rubber cement, and dispersing agent additive amount is 0.1~1.5wt% of the dry weight of material containing rubber cement,
Thixotropic agent additive amount be 0.5~1.5wt% of the dry weight of material containing rubber cement, organic silicon defoamer additive amount be the dry weight of material containing rubber cement 0.1~
1wt%, dimethyl-silicon oil release agent additive amount are 0.1~1wt% of the dry weight of material containing rubber cement, and the wetting agent selects alkylsurfuric acid
Salt, sulfonate, fatty acid, aliphatic ester sulfate, carboxylic acid soaps, phosphate anionic surfactant or polyoxy second
Allylic alkylation phenolic ether, polyoxyethylene aliphatic alcohol ether, in polyoxyethylene polyoxypropylene block copolymer nonionic surface active agent
Any one, the dispersing agent be phosphate type dispersing agent, ethoxy compound dispersing agent, polyacrylate dispersing agent,
Any one in polyester-type dispersing agent, polyether-type dispersing agent, polyolefins dispersing agent, sodium carbonate, sodium orthophosphate or herring oil.
Further, the weight ratio of the water in polyvinyl alcohol glue described in step 3 and ethyl alcohol is 3~10:1, polyethylene
Alcohol solid content is 5~15wt%；The water-soluble resin is water-soluble epoxy resin, water-soluble poly imide resin or water-soluble
Property one or more of phenolic resin, water-soluble resin fluid solid content is 40~60wt%；The mixture glue dry weight, which accounts for, to be contained
Rubber cement material dry weight ratio is 5~15wt%.
Further, grinding wheel die described in step 4 is cylindrical or circular ring shape；The densification is cold
Equal static pressure, pressure are 5~50MPa；The sintering is specially to put the green body in an oven, is warming up to 75 DEG C of heat preservations first
1 hour, then be warming up to 115 DEG C and keep the temperature 1.5 hours, then be warming up to 150~180 DEG C and keep the temperature 1 hour, finally it is warming up to 180~230
DEG C heat preservation 30min, polyvinyl alcohol glue are decomposed thermally to form uniform capillary micropore, and water-soluble resin solidification is had after cooling
The grinding wheel semi-finished product of fine pore.
Further, grinding wheel shaping described in step 5 is the vitrified bonded grinding wheel using granularity 60~100, removal
The extra rim charge for the grinding wheel semi-finished product that step 4 obtains makes grinding wheel semi-finished dimensions precision reach 0.01~0.05mm.
In addition, mirror grinding grinding wheel described in step 5 includes cross grinding grinding wheel and cylindricalo grinding grinding wheel, if by after repairing type
Grinding wheel semi-finished product end face is mounted on progress end mirror face grinding on grinding wheel pedestal as wheel grinding working face, by its end face, then
Cross grinding grinding wheel is obtained, the amount of feeding of the end face mirror grinding is 0.002mm/min；If by the grinding wheel semi-finished product after repairing type
Periphery is mounted on progress outer circle mirror grinding on grinding wheel spindle as wheel grinding working face, by its centre bore, then obtains outer
Circle abrasive grinding wheel, the back engagement of the cutting edge of the outer circle mirror grinding are 0.001~0.005mm, lateral feed is 0.2~
0.5mm/min, length feed amount are 10~20m/min；
The addition grinding fluid carries out the finishing of wheel grinding working face, specifically: first use granularity 100~400 potteries
Porcelain binding agent sand wheel removes the thickness of the wheel grinding working face 0.1mm as finishing grinding wheel, then uses the cutting-in of 0.02mm
Finishing 2 times, then modified 3 times with the cutting-in of 0.01mm, finally reciprocal 2 times without cutting-in idle stroke, the feed speed for modifying grinding wheel is equal
For 20~30mm/min；It is finely modified, the active grain of wheel face is made to form many contour micro- swords of half passive state, when grinding
Only cut fine abrasive dust, and there is burnishing appropriate to act on, while modifying grinding wheel, it is necessary to enough grinding fluids or
Other coolant liquids are flushed on the contact point of mirror grinding grinding wheel and finishing grinding wheel, grinding wheel clast are washed away in time, Yi Mianying
Ring grinding quality；
The flow of the grinding fluid is 100~500ml/min, and grinding fluid is acid grinding fluid, alkaline grinding fluid or water；
The acidity grinding fluid and alkaline grinding fluid pass through addition acidic ph modifier or alkaline pH adjusting agent in water respectively and are prepared into
It arrives, acidic ph modifier is dilute hydrochloric acid or acetic acid, and pH value adjustable range is 2~6, and alkaline pH adjusting agent is potassium hydroxide, ammonia
Water or sodium carbonate, pH value adjustable range are 8~12.The solvability to solvable nitridation Al filler is improved, dimensioned is completed
Afterwards, tarry matter two minutes.
The invention also discloses a kind of resin metallic composite mirror surface abrasive grinding wheels being prepared using the above method.
Beneficial effects of the present invention:
Mirror grinding grinding wheel grinding wheel internal organizational structure uniformity and grinding wheel self-sharpening are required it is high, conventional powder dry-pressing at
Molding sand paper production method is reunited due to easily causing particle agglomeration, the especially reunion of fine granularity abrasive material during mixing granulation
Particle is far longer than practical abrasive size, causes the scuffing in grinding process to workpiece surface；And conventional gel is poured grinding wheel system
Make method, using glue DIRECT GEL as bonding agent concretion abrasive, micropore is generated by addition pore creating material, after pore former
The hole of generation is mostly closed pore, and connectivity is bad, and polishing fluid can not permeate, and causes polishing area moisture film thick, and absorption potential energy is low, friction
Power is low, can not generate enough heat sources and promote mechanochemical treatment, polishing efficiency is low.The present invention by the dispersion mixing of slurry,
The dispersing uniformity for improving each material of grinding wheel, prevents particle agglomeration；Idiosome is formed by addition gel resin, is formed and is passed through after sintering
Logical capillary micropore；By adding water-soluble resin, grinding wheel bond concretion abrasive is used as after sintering；Have surface layer resistance to by addition
The hydrolyzable filler of water function, improves the self-sharpening of grinding wheel.
The present invention makes grinding wheel by polyvinyl alcohol and water-soluble resin mixing lyogel, reduces grinding wheel internal flaw, protects
Demonstrate,prove the uniformity of grinding wheel organization.Effect of two kinds of resins during abrasive wheel forming is different, has first with polyvinyl alcohol
Low-temperature physics gelling ability forms gel biscuit, polyvinyl alcohol sintering carbonization under high temperature, while water-soluble resin solidification is used as sand
Bonding agent is taken turns, generates a large amount of capillary micropores after polyvinyl alcohol carbonization, the hole generated compared to direct powder compacting addition pore creating material is
Closed pore, the capillary micropore that this method generates in pellet is perforation micropore, strong to the absorbability of water, is conducive to improve friction
The storage and chip removal of power, polishing fluid.
Traditional grinding wheel improves self-sharpening by addition " solvable ", " decomposable " or " can be electrolysed " filler, " solvable " and " can divide
Swelling can occur solution " for filler, and not ensure that the selectivity of surfacing from sharp, and " can be electrolysed " filler is multiple with technique
Miscellaneous disadvantage.The present invention is added to the aluminium nitride soluble powder filler that surface is coated with water-fast nanometer titanium dioxide silicon coating, grinding wheel
The silica of surface layer aln surface is worn, and aluminium nitride is ground liquid hydrolysis, and it is de- to be passivated abrasive material for surface bonding strength decline
It falls, new abrasive material exposes, and keeps self-sharpening；Since the capillary micropore in grinding wheel has water absorbing capacity, it is coated with inside grinding wheel
The aluminium nitride of water-fast nanometer titanium dioxide silicon coating can avoid direct hydrolysis, keep the intensity of grinding wheel base body, therefore, which has
Internal structure is stablized, the good advantage of surface self-sharpening.Pass through the adjustable grinding fluid of pH value of the acid or alkaline grinding fluid of allotment
To the solvability of aluminium nitride, the self-sharpening for keeping grinding tool stable improves grinding efficiency.
Detailed description of the invention
Fig. 1 sol-gal process mirror grinding grinding wheel schematic diagram of internal structure；
The mirror grinding grinding wheel SEM surface topography map that Fig. 2 embodiment 1 is prepared；
Fig. 3 cross grinding schematic illustration；
1 silicon plane mirror head mirror face grinding rear surface white light interference shape appearance figure of Fig. 4 embodiment；
1 silicon plane mirror head mirror face grinding rear surface laser interference face shape figure of Fig. 5 embodiment；
The hot-forming wheel grinding silicon plane mirror surface white light interference shape appearance figure of Fig. 6；
Two kinds of grinding wheels of Fig. 7 change over time figure to the material removing rate of workpiece；
The wear rate relational graph of Fig. 8 grinding fluid pH value and grinding wheel.
Specific embodiment
The present invention provides a kind of resin metallic composite mirror surface abrasive grinding wheel and preparation method thereof based on sol-gal process,
Collosol and gel mirror grinding grinding wheel schematic diagram of internal structure is as shown in Figure 1.Sand is made using PVA and water-soluble resin lyogel
Wheel avoids powder compacting and disperses non-uniform problem, and the physical gel ability having using PVA forms gel biscuit, sintering
Carbonization, water-soluble resin sintering curing temperature are also PVA carburizing temperature, generate the capillary micropore largely penetrated through after PVA carbonization, have
There is good water absorbing capacity, and be added to the aluminium nitride soluble powder filler that surface is coated with water-fast nanometer titanium dioxide silicon coating,
The silica of grinding wheel surface layer aln surface is worn, and aluminium nitride is ground liquid hydrolysis, and surface bonding strength decline is passivated abrasive material
It falls off, new abrasive material exposes, and keeps self-sharpening；The aluminium nitride that water-fast nanometer titanium dioxide silicon coating is coated with inside grinding wheel can be kept away
Exempt from direct hydrolysis, keep the intensity of mirror grinding grinding wheel base body, the consumption of abrasive material can be effectively reduced, improves in polishing tool
The service life and utilization rate of abrasive material.
Embodiment 1
The present embodiment preparation has the mirror grinding grinding wheel of fine pore, and on face grinding machine, to silicon plane camera lens into
Mirror grinding processing is gone.
Step 1: preparation surface has the aluminium nitride powder of water-fast film layer
By weight, taking 100g average grain diameter is that 1 micron of aluminium nitride powder and 1kg dehydrated alcohol mix, and is stirred evenly, water
Under the conditions of bath, 40 DEG C are warming up to, obtains aluminium nitride alcohol dispersion liquid；Simultaneously by the positive silicic acid second of the diluted 80g of 600g dehydrated alcohol
Ester (TEOS) and the diluted 100g ammonium hydroxide of 600g dehydrated alcohol and 100g water droplet are added in aluminium nitride alcohol dispersion liquid, are added dropwise
Speed control is 2 drops/sec, after being added dropwise, after reacting 6 hours under 40 DEG C of water bath conditions, stops reaction, is filtered by vacuum, and is used
Dehydrated alcohol washed product 3 times, then obtained product is placed in and is spontaneously dried 12 hours under room temperature, 300 are placed on after dry
It is calcined 2 hours under the conditions of DEG C, after cooling, crosses 200 meshes to get the aluminium nitride powder of coated with silica is arrived, due to titanium dioxide
Silicon has water resistance, therefore has obtained the aluminium nitride powder that surface has water-fast film layer；
Step 2: preparing suspension.By weight, taking 300g partial size is 2.5 micron diamond powders, 100g silica
The aluminium nitride powder of cladding, the electrolytic copper powder that 500g granularity is 400 mesh, 50g Cu-cladding Al Rod, 50g cryolite powder, 80g oxidation
Zinc, 150g barium sulfate, 70g alumdum, 15g polyoxyethylated alkyl phenol wetting agent, 20g polyethyleneimine, the defoaming of 10g organosilicon
Agent and 10g dimethyl-silicon oil release agent are added in 1200g water, are dispersed after mixing using planetary ball mill, and dispersion is situated between
Matter selects partial size 3mm zirconium oxide microballoons, and suspension is prepared.
Step 3: under 90 DEG C of water bath conditions, 10g polyvinyl alcohol preparation material containing rubber cement: being dissolved in 80g water and 10g ethyl alcohol
In the mixed solvent obtain 100g solid content be 10wt% polyvinyl alcohol glue；300g is added into polyvinyl alcohol glue again to contain admittedly
Amount is the water-soluble poly imide resin liquid of 40wt%, obtains 400g mixture glue, then mixture glue is added to while stirring
In suspension prepared by step 2, after mixing, dispersion 1 hour is carried out using planetary ball mill, obtains material containing rubber cement；
Step 4: preparing the mirror grinding grinding wheel semi-finished product with fine pore.100g is taken to fall in material containing rubber cement obtained
Enter in the circular ring shape mold that diameter is 55mm, freezes 2 hours, spontaneously dried 10 hours after defrosting, from mould at a temperature of being placed in -15 DEG C
Green body is taken out in tool, isostatic cool pressing under the conditions of 30MPa is put into baking oven under the conditions of 45 DEG C and dries 24 hours, after drying, grinding wheel
Green body is warming up to 230 DEG C of sintering, and heating curve is to be warming up to 75 DEG C first to keep the temperature 1 hour, then to be warming up to 115 DEG C of heat preservations 1.5 small
When, then be warming up to 180 DEG C and keep the temperature 1 hour, 230 DEG C of heat preservation 30min are finally warming up to, polyvinyl alcohol glue is decomposed thermally to form uniformly
Capillary micropore, water-soluble poly imide resin solidification, obtain the mirror grinding grinding wheel semi-finished product with fine pore, be prepared into
The collosol and gel mirror grinding grinding wheel SEM surface topography map arrived is as shown in Fig. 2, diamond, filler and electrolytic copper powder are ground in mirror surface
It cuts in grinding wheel and is evenly distributed.The polyimides bonding agent mirror grinding grinding wheel tensile strength of acquisition has reached 25MPa, and hardness reaches
60 (Shao Er hardness), elongation at break 150%.
Step 5: grinding wheel shaping.Mirror grinding grinding wheel semi-finished product are carried out using granularity 100 vitrified bonded grinding wheels
Correction of the flank shape, removes extra rim charge, and grinding wheel dimensional accuracy reaches 0.01mm；
Step 6: crushing.Mirror grinding grinding wheel semi-finished product after repairing type are pasted on grinding wheel stand, grinding wheel stand installation
Crushing is carried out on milling and grinding machine grinding wheel spindle, obtains cross grinding grinding wheel；Granularity is specially first used in the crushing
No. 150 vitrified bond corundum wheels remove the thickness of mirror grinding stone face 0.1mm, then as finishing grinding wheel
It twice, then with the cutting-in of 0.01mm is modified three times with the finishing of the cutting-in of 0.02mm, finally back and forth twice without cutting-in idle stroke, refine
When finishing wheel traverse speed be 20mm/min, finely modified, form the active grain of wheel face many etc.
The high micro- sword of half passive state, when grinding, only cut fine abrasive dust, and have burnishing appropriate to act on, in the same of finishing grinding wheel
When, it is necessary to it is flushed on the contact point of mirror grinding grinding wheel and finishing grinding wheel with enough grinding fluids or other coolant liquids,
Grinding wheel clast washes away in time, in order to avoid influence grinding quality；
Step 7: silicon plane mirror head mirror face grinding.It is first that 15 micron diamond bronze grinding wheels refine diameter with granularity
50mm silicon plane camera lens, flatness reach 1 μm, and surface roughness reaches 25nm, and it is flat to silicon to reuse above-mentioned cross grinding grinding wheel
Face camera lens carries out mirror grinding, and cross grinding machining sketch chart is as shown in figure 3, speed of grinding wheel spindle is 7654rpm, work spindle
Revolving speed is 356rpm, and amount of feeding control is in 0.002mm/min, and grinding depth is 50 μm, and tarry matter two minutes, grinding fluid was alkalinity
Grinding fluid, by adding alkaline pH adjusting agent sodium carbonate in water, pH value adjusts the dissolution improved 9 to solvable nitridation Al filler
Ability, when grinding, cutting fluid will sufficiently, and grinding fluid flow control has good filter device in 300ml/min, with anti-scratch
Hurt workpiece surface, after the completion of dimensioned, tarry matter two minutes, silicon plane mirror head mirror face grinding rear surface white light interference pattern
Figure is as shown in figure 4, surface roughness has reached 6.063nm, and there is micro-cutting trace on surface, and Fig. 5 is silicon plane mirror head mirror grinding
Rear surface laser interference face shape figure is processed, flatness PV value has reached 1.5 wavelength hereinafter, by detection milling in grinding process
Machine power, grinding load are not above 25%, illustrate that collosol and gel mirror grinding grinding wheel self-sharpening is good, may be implemented to grinding
The high flatness of workpiece is processed.
Embodiment 2
Polish comparative test: flat to silicon using conventional method powder mixing-hot-press molding method preparation mirror grinding grinding wheel
Face camera lens is ground, the silicon plane mirror head surface shape appearance figure being ground as shown in fig. 6, comparative example 1 silicon plane mirror
Head surface shape appearance figure and face shape figure, it is uniform that embodiment 1 polishes the obtained fine cut mark of silicon plane mirror head surface, and uses and be hot pressed into
The silicon plane mirror head surface roughness that type method is prepared is 10.77nm, and the definition of mirror grinding is that grinding rear surface is coarse
Degree is less than 10nm, therefore is difficult to meet the requirement of mirror grinding, while observing surface has thick scratch to occur, and illustrates dry powder mixing-
Hot-press molding method cannot achieve the evenly dispersed of different densities storeroom, when making fine granularity mirror surface grinding wheel, be easy to appear powder
Body particle agglomeration phenomenon.
The gel grinding wheel and hot-forming grinding wheel are subjected to durability comparative experiments simultaneously, grinding process parameters are consistent, see
It surveys after a period of use, two kinds of grinding wheels change over time figure to the material removing rate of workpiece, can be with from figure as shown in Fig. 7
The gel grinding wheel for seeing addition hydrolyzable aluminium nitride after a period of use, still keeps higher material removing rate, and is hot pressed into
After a period of use, surface passivation, material removing rate declines abrasive wheel.
Embodiment 3
Embodiment 1 is obtained mirror grinding grinding wheel in the grinding fluid of different pH value (7,8,9,10,11,12,13) to carry out
Grinding, for sodium carbonate as sour pH adjusting agent, other grinding parameters are consistent, observe the wear rate of grinding tool, as shown in Figure 8.From
It can be seen that becoming larger with pH value, the wear rate of grinding wheel are also improving in figure, accordingly, it is considered to arrive the service life of grinding wheel, used
Cheng Zhong need to adjust pH value according to the degree of passivation of grinding wheel, while dressing grinding wheel, control the abrasion of grinding wheel.For embodiment 1
The aluminium nitride of the obtained waterproof coating in grinding wheel, when material removing rate is higher, can control the pH value of grinding fluid 9 with
Under, slow down the abrasion of grinding wheel, when material removing rate decline, alkali pH adjusting agent sodium carbonate can be added, pH value control 10 or more,
Quick dressing.
Embodiment 4
Operate it is substantially the same manner as Example 1, carry out two groups of comparative experimentss, experiment 1 the difference is that, Buddha's warrior attendant in step 2
The partial size of stone mill material is changed to 1 μm, and by detecting milling and grinding machine power, grinding load is increased beyond 30%, and silicon plane mirror head surface is also
The scratch for having upper one of precision grinding process to leave, roughness are worse than embodiment 1, this is because abrasive grain declines, under grinding efficiency
Drop.
Experiment 2 the difference is that, the partial size of diamond abrasive in step 2 is changed to 5 μm, silicon plane mirror head surface has
Even Fil-Lumiere, roughness are equally worse than embodiment 1, this is because abrasive grain rises, abrasive grain enhances workpiece surface mechanism.
Embodiment 5
Operate it is substantially the same manner as Example 1, the difference is that, respectively add 0,50,100,150,200,250,300g
Aluminium nitride powder with waterproof coating is prepared gel mirror grinding grinding wheel, is ground to silicon plane mirror, experiment hair
Existing, aluminium nitride powder filler additive amount is more, and abrasion of grinding wheel is more obvious, and too fast wheel wear rate, is unfavorable for high-precision surface
The processing of type, flatness PV value rise, and the durability decline of aluminium nitride powder filler grinding wheel is not added, and after grinding 1 hour, occur
Glazing phenomenon.
Embodiment 6
Operate it is substantially the same manner as Example 1, the difference is that increasing in step 3 10wt% PVA glue in mixture glue
Amount to 200g, due to being carbonized after PVA sintering, can generate the capillary micropore largely with good water absorbing capacity, frictional force enhances,
Removal efficiency improves, but wear rate also improves simultaneously.
It tests as a comparison, operation is substantially the same manner as Example 1, the difference is that increasing water-soluble poly imide resin
Liquid is to 500g, and after solidification, grinding wheel resinoid bond is more, and wearability improves, and drops under the action of hydrolyzable filler aluminium nitride, uses 5
After hour, there are glazing phenomenon, removal power decline in surface.
Embodiment 7
Operate it is substantially the same manner as Example 1, the difference is that water-soluble poly imide resin is changed to water soluble phenolic resin
Rouge, in step 4, sintering temperature is changed to 180 DEG C, and sintering heating curve is to be warming up to 75 DEG C first to keep the temperature 1 hour, then be warming up to
115 DEG C keep the temperature 1.5 hours, then are warming up to 150 DEG C and keep the temperature 1 hour, are finally warming up to 180 DEG C of heat preservation 30min, obtain phenolic resin
The mirror grinding grinding wheel tensile strength of bonding agent mirror grinding grinding wheel, acquisition has reached 22MPa, and hardness has reached 56, and (Shao Er is hard
Degree), grinding silicon plane camera lens can achieve 10nm mirror effect below.
Claims (8)
1. a kind of preparation method of the resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process, it is characterised in that comprising with
Lower step:
Step 1: preparation surface has the water-fast aluminium nitride powder of silica coating；
Step 2: diamond dust, water-fast aluminium nitride powder, electrolytic copper powder, filler, additive being dispersed in water, are prepared
Suspension；
Step 3: under 90 DEG C of water bath conditions, the in the mixed solvent that polyvinyl alcohol is dissolved in water and ethyl alcohol being obtained into polyvinyl alcohol glue
Water adds water-soluble resin liquid in polyvinyl alcohol glue and obtains mixture glue, the polyvinyl alcohol glue in the mixture glue
Weight ratio with water-soluble resin liquid is 1:1~6；Mixture glue is added in suspension prepared by step 2, is stirred when being added
It mixes, obtains material containing rubber cement；
Step 4: rubber cement material will be contained and poured into grinding wheel die, freezed 1~3 hour under the conditions of being placed in -25~-15 DEG C, after defrosting certainly
So dry 5~10 hours, take out green body from grinding wheel die, densification, then dry 24 under the conditions of 45~65 DEG C~
48 hours, the grinding wheel semi-finished product with fine pore are obtained after being sintered and cooled；
Step 5: the grinding wheel semi-finished product obtained on grinding machine to step 4 carry out grinding wheel shaping, then by the grinding wheel after repairing type half at
Product are mounted on grinding machine, and addition grinding fluid carries out the finishing of wheel grinding working face, and the flow of the grinding fluid is 100~500ml/
Mirror grinding grinding wheel is prepared in min.
2. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that the step 1 specifically:
By weight, 1~10 part of aluminium nitride powder and 50 parts of dehydrated alcohols are mixed, stirs evenly, obtains under the conditions of 40 DEG C
Aluminium nitride alcohol dispersion liquid；By diluted 3~6 parts of ethyl orthosilicates of 30 parts of dehydrated alcohols and with 30 parts of dehydrated alcohols it is diluted
4~6 parts of ammonium hydroxide and 5 parts of water droplets are added in aluminium nitride alcohol dispersion liquid, and rate of addition is 1~2 drop/sec, then at 35~45 DEG C
Under the conditions of gel reaction 6 hours, vacuum filtration, with dehydrated alcohol washed product 3 times, obtained product is placed under room temperature
It spontaneously dries 12~24 hours, is then calcined 2 hours under the conditions of 300 DEG C, cross 200 meshes after cooling, obtain surface with two
The water-fast aluminium nitride powder of membranous layer of silicon oxide.
3. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that the step 2 specifically:
By weight, by 5~10 parts 0.5~5 micron of diamond dust, 1~3 part of water-fast aluminium nitride powder, 10~30 part 200
The electrolytic copper powder of~1000 mesh, 5~10 parts of fillers and 1~5 part of additive are added in 20~50 parts of water, using planetary type ball-milling
Machine is dispersed, and decentralized medium selects zirconium oxide microballoons, and suspension is prepared；The filler be Cu-cladding Al Rod, talcum powder,
Ice crystal, cerium oxide, alumdum, calcium carbonate, calcium oxide, zinc oxide, barium sulfate, magnesia, any one in molybdenum disulfide
Or it is several；The additive is mixed to get by wetting agent, dispersing agent, organic silicon defoamer and dimethyl-silicon oil release agent,
Wetting agent additive amount is 0.1~1wt% of the dry weight of material containing rubber cement, and dispersing agent additive amount is 0.1~1.5wt% of the dry weight of material containing rubber cement,
Thixotropic agent additive amount be 0.5~1.5wt% of the dry weight of material containing rubber cement, organic silicon defoamer additive amount be the dry weight of material containing rubber cement 0.1~
1wt%, dimethyl-silicon oil release agent additive amount are 0.1~1wt% of the dry weight of material containing rubber cement, and the wetting agent selects alkylsurfuric acid
Salt, sulfonate, fatty acid, aliphatic ester sulfate, carboxylic acid soaps, phosphate anionic surfactant or polyoxy second
Allylic alkylation phenolic ether, polyoxyethylene aliphatic alcohol ether, in polyoxyethylene polyoxypropylene block copolymer nonionic surface active agent
Any one, the dispersing agent be phosphate type dispersing agent, ethoxy compound dispersing agent, polyacrylate dispersing agent,
Any one in polyester-type dispersing agent, polyether-type dispersing agent, polyolefins dispersing agent, sodium carbonate, sodium orthophosphate or herring oil.
4. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that the weight ratio of water and ethyl alcohol in polyvinyl alcohol glue described in step 3 is 3~10:1, and polyvinyl alcohol is solid
Content is 5~15wt%；The water-soluble resin liquid is water-soluble epoxy resin liquid, water-soluble poly imide resin liquid or water
One or more of dissolubility liquid phenolic resin, water-soluble resin fluid solid content are 40~60wt%；Mixture glue dry weight, which accounts for, to be contained
Rubber cement material dry weight ratio is 5~15wt%.
5. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that grinding wheel die described in step 4 is cylindrical or circular ring shape；The densification is cold etc. quiet
Pressure, pressure are 5~50MPa；The sintering is specially to put the green body in an oven, and it is small to be warming up to 75 DEG C of heat preservations 1 first
When, then be warming up to 115 DEG C and keep the temperature 1.5 hours, then be warming up to 150~180 DEG C and keep the temperature 1 hour, finally it is warming up to 180~230 DEG C
Keep the temperature 30min.
6. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that grinding wheel shaping described in step 5 is the vitrified bonded grinding wheel using granularity 60~100, removes step 4
The extra rim charge of obtained grinding wheel semi-finished product makes grinding wheel semi-finished dimensions precision reach 0.01~0.05mm.
7. a kind of preparation side of resin metallic composite mirror surface abrasive grinding wheel based on sol-gal process according to claim 1
Method, it is characterised in that mirror grinding grinding wheel described in step 5 includes cross grinding grinding wheel and cylindricalo grinding grinding wheel, if by after repairing type
Grinding wheel semi-finished product end face is mounted on progress end mirror face grinding on grinding wheel pedestal as wheel grinding working face, by its end face, then
Cross grinding grinding wheel is obtained, the amount of feeding of the end face mirror grinding is 0.002mm/min；If by the grinding wheel semi-finished product after repairing type
Periphery is mounted on progress outer circle mirror grinding on grinding wheel spindle as wheel grinding working face, by its centre bore, then obtains outer
Circle abrasive grinding wheel, the back engagement of the cutting edge of the outer circle mirror grinding are 0.001~0.005mm, and lateral feed is 0.2~0.5mm/
Min, length feed amount are 10~20m/min；
The addition grinding fluid carries out the finishing of wheel grinding working face, specifically: first use granularity 100~400 ceramic junctions
Mixture grinding wheel removes the thickness of the wheel grinding working face 0.1mm as finishing grinding wheel, is then modified with the cutting-in of 0.02mm
2 times, then modified 3 times with the cutting-in of 0.01mm, finally reciprocal 2 times without cutting-in idle stroke, the feed speed for modifying grinding wheel is 20
~30mm/min；
The flow of the grinding fluid is 100~500ml/min, and grinding fluid is acid grinding fluid, alkaline grinding fluid or water, described
Acid grinding fluid and alkaline grinding fluid pass through addition acidic ph modifier or alkaline pH adjusting agent in water respectively and are prepared, acid
Property pH adjusting agent be dilute hydrochloric acid or acetic acid, pH value adjustable range be 2~6, alkaline pH adjusting agent be potassium hydroxide, ammonium hydroxide or
Sodium carbonate, pH value adjustable range are 8~12.
8. the resin metallic composite mirror surface abrasive grinding wheel that a kind of any one of claims 1-7 the method is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716714.5A CN110421494B (en) | 2019-08-05 | 2019-08-05 | Resin metal composite mirror grinding wheel based on sol-gel method and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716714.5A CN110421494B (en) | 2019-08-05 | 2019-08-05 | Resin metal composite mirror grinding wheel based on sol-gel method and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110421494A true CN110421494A (en) | 2019-11-08 |
| CN110421494B CN110421494B (en) | 2020-06-12 |
Family
ID=68414156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716714.5A Active CN110421494B (en) | 2019-08-05 | 2019-08-05 | Resin metal composite mirror grinding wheel based on sol-gel method and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110421494B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905339A (en) * | 2022-04-29 | 2022-08-16 | 江西江钨硬质合金有限公司 | Processing technology of high-precision hard alloy bar |
| CN115042101A (en) * | 2022-07-20 | 2022-09-13 | 华侨大学 | Grinding wheel agglomerate for inducing friction chemical reaction of workpiece and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181762A (en) * | 2001-12-18 | 2003-07-02 | Noritake Co Ltd | Method for manufacturing phenolic resin porous grinding stone |
| JP2003191169A (en) * | 2001-12-25 | 2003-07-08 | Noritake Co Ltd | Grinding wheel having resin core part |
| WO2005053904A1 (en) * | 2003-11-26 | 2005-06-16 | 3M Innovative Properties Company | Method of abrading a workpiece |
| CN201044950Y (en) * | 2007-04-27 | 2008-04-09 | 上海树脂砂轮厂 | Resin abrasive cut-off wheel |
| CN102172902A (en) * | 2011-02-22 | 2011-09-07 | 南京航空航天大学 | Method for manufacturing grinding wheel work layer with abrasive particle dressing function |
| CN108081159A (en) * | 2017-12-13 | 2018-05-29 | 衢州学院 | A kind of polyvinyl acetal resin grinding tool organogel forming method |
-
2019
- 2019-08-05 CN CN201910716714.5A patent/CN110421494B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181762A (en) * | 2001-12-18 | 2003-07-02 | Noritake Co Ltd | Method for manufacturing phenolic resin porous grinding stone |
| JP2003191169A (en) * | 2001-12-25 | 2003-07-08 | Noritake Co Ltd | Grinding wheel having resin core part |
| WO2005053904A1 (en) * | 2003-11-26 | 2005-06-16 | 3M Innovative Properties Company | Method of abrading a workpiece |
| CN201044950Y (en) * | 2007-04-27 | 2008-04-09 | 上海树脂砂轮厂 | Resin abrasive cut-off wheel |
| CN102172902A (en) * | 2011-02-22 | 2011-09-07 | 南京航空航天大学 | Method for manufacturing grinding wheel work layer with abrasive particle dressing function |
| CN108081159A (en) * | 2017-12-13 | 2018-05-29 | 衢州学院 | A kind of polyvinyl acetal resin grinding tool organogel forming method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905339A (en) * | 2022-04-29 | 2022-08-16 | 江西江钨硬质合金有限公司 | Processing technology of high-precision hard alloy bar |
| CN115042101A (en) * | 2022-07-20 | 2022-09-13 | 华侨大学 | Grinding wheel agglomerate for inducing friction chemical reaction of workpiece and preparation method thereof |
| CN115042101B (en) * | 2022-07-20 | 2023-05-05 | 华侨大学 | Grinding wheel caking for inducing workpiece tribochemical reaction and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110421494B (en) | 2020-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110315439A (en) | A kind of mirror grinding grinding wheel and preparation method thereof with capillary micropore | |
| CN101870091B (en) | Method for preparing ultra-fine diamond grinding wheel of vitrified bond | |
| EP2567784B1 (en) | Bonded abrasive article | |
| KR102002194B1 (en) | Bonded abrasive article | |
| CA2379950C (en) | Method for making microabrasive tools | |
| US10556316B2 (en) | Polishing pads and systems for and methods of using same | |
| CN100500375C (en) | Semi-sessile abrasive grain polishing method of plane stainless steel | |
| KR20150131077A (en) | Bonded abrasive article | |
| CN103395011A (en) | Polyvinyl alcohol-polyurethane elastic buffing wheel and preparation method thereof | |
| CN110216597A (en) | A kind of the resin finish block and preparation method of Compostie abrasive particles structure | |
| TW201623546A (en) | Polishing solutions and methods of using same | |
| CN110421494A (en) | A kind of resin metallic composite mirror surface abrasive grinding wheel and preparation method thereof based on sol-gal process | |
| CN111216037A (en) | Polishing pad and preparation method thereof | |
| CN101774160B (en) | Grainofice-type concretion abrasive polishing pad as well as rapid preparation method and device | |
| CN109202750A (en) | Hollow accumulation abrasive grain of one kind and preparation method thereof, super-hard abrasive tool | |
| CN102066055B (en) | Self-bonded foamed abrasive articles and machining with such articles | |
| CN110405543A (en) | A kind of ferrite substrate polishing method using acid polishing slurry and Metal Substrate polishing disk | |
| CN110405649B (en) | Sol-gel polishing pellet added with soluble filler with water-resistant coating and preparation method thereof | |
| CN117003581A (en) | Agglomerated diamond and preparation method and application thereof | |
| CN107793157B (en) | Preparation method of cubic silicon carbide super-fine oilstone | |
| CN105586005A (en) | Nano corundum abrasive and preparation method thereof | |
| CN111390751B (en) | Agglomerated abrasive particle and application thereof | |
| CN101176983A (en) | Semi-fixing abrasive grain polishing method of brass sheet substrate | |
| CN115008356B (en) | Preparation method of soft and hard composite structure thinning grinding wheel | |
| CN115990841A (en) | Ceramic bond grinding roller grinding wheel and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 325000 room 219, Industrial Park Road, grape shed High-tech Industrial Park, Wenzhou, Zhejiang, China, 4 Patentee after: WENZHOU HONGLIANG MACHINERY TECHNOLOGY Co.,Ltd. Address before: 78 No. 324000 Zhejiang province Kecheng District of Quzhou City Jiuhua North Avenue Patentee before: QUZHOU University |
|
| TR01 | Transfer of patent right |