CN107674304A - Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing - Google Patents

Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing Download PDF

Info

Publication number
CN107674304A
CN107674304A CN201711004407.1A CN201711004407A CN107674304A CN 107674304 A CN107674304 A CN 107674304A CN 201711004407 A CN201711004407 A CN 201711004407A CN 107674304 A CN107674304 A CN 107674304A
Authority
CN
China
Prior art keywords
abrasive material
parts
thermoplasticity
hard alloy
temperature
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.)
Pending
Application number
CN201711004407.1A
Other languages
Chinese (zh)
Inventor
吕鸿图
马春霞
晏敏胜
胡立峰
徐维浓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Nano New Material Technologies Co Ltd
Original Assignee
Kunshan Nano New Material Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kunshan Nano New Material Technologies Co Ltd filed Critical Kunshan Nano New Material Technologies Co Ltd
Priority to CN201711004407.1A priority Critical patent/CN107674304A/en
Publication of CN107674304A publication Critical patent/CN107674304A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2351/04—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
    • C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention discloses a kind of hard alloy polishing thermoplasticity abrasive material and its manufacture method, the material is made up of the component comprising following parts by weight：60 80 parts of abrasive material, 19 35 parts of thermal plastic high polymer, 0.1 1.5 parts of dispersant, 0.1 1 parts of lubricant, 0.1 1.5 parts of antioxidant, 0.6 2.4 parts of coupling agent, 60 240 parts of industrial alcohol, are made using banburying prilling.The material of the present invention has good cutting ability, and wearability is good, and toughness is high, pit, cut is not produced to workpiece during polishing, not chipping, cleaning is easy；And preparation technology is simple, production efficiency is high, it is with short production cycle, green, can repeatedly reclaim cyclic process and use.

Description

Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing
Technical field：
The present invention relates to a kind of hard alloy polishing thermoplasticity abrasive material and preparation method thereof, belongs to polishing material grinding Grinding tool technical field.
Background technology：
The existing abrasive material applied to polishing field is divided into natural abrasive and artificial mill according to its material and its manufacture method Material, wherein natural abrasive such as cobblestone, Bai Shi, quartz sand, artificial abrasive material are further divided into Organic abrasive and inorganic abradant, had Machine abrasive material such as leather, shell, wood chip etc., inorganic abradant such as oxide, carbide, metallic steel, diamond dust, resinous abrasive materials etc..My god The advantages of right abrasive material is exactly that exploitation is convenient, cheap, but grinding performance is single, and rubbing down quality is relatively low.And artificial Organic abrasive It is adapted to soft workpiece polishing, to hard-alloy grinding dynamics deficiency, is relatively adapted to workpiece cleaning.General hard alloy is relatively suitable Conjunction uses artificial inorganic abrasive material.
Oxide, carbide abrasives surface are rougher, larger with workpiece surface or mutual rubbing action, are ground in increase Cut and also increase unnecessary abrasion outside, increase abrasive material use cost, at the same be by ebonite bonding or sinter molding, firmly It is crisp frangible；Metal steel ball does not have cutting edge, is only hit by extruding and realizes polishing, it is impossible to realized the processing of big stock removal, and throwing Light time is hit due to extruding easily causes pit to workpiece；Quartz sand, diamond dust profile are irregular polyhedronses, are had sharp Seamed edge and wedge angle, but own wt kicks the beam, impact that dynamics is too small, and particularly resistance is too small, there is that grinding is hypodynamic to ask Topic；The grains of sand are meticulous simultaneously, are mixed with polishing dust and are difficult to clear up, and after certain time, cutting swarf is excessive, influence to process matter Amount even makes processing not carry out, and can only scrap；Resinous abrasive materials, as substrate adhesion, bond a variety of hard by phenolic resin Material, itself has certain elasticity and surface is smooth, during polishing, abrasive material and abrasive material, is rubbed first between abrasive material and workpiece Top layer phenolic resin is come off, expose hard material, there is stronger grinding force, successively come off as grinding carries out abrasive material, all the time Grinding force is kept, possessed elasticity can prevent abrasive material fragmentation during collision, but phenolic aldehyde belongs to thermoset materials in itself, Simultaneous manufacturing can be only carried out, recycling can not be carried out.
As patent CN101200053A discloses a kind of grinding tool of epoxy resin combination abrasive material, using epoxy resin, abrasive material, Curing agent and other auxiliary materials are adequately mixed after stirring, and carry out moulding by casting at normal temperatures, solid in 80 DEG C -150 DEG C Change and product be made in 6 hours, CN103949987A discloses a kind of elastic grinding material and its manufacture method, the patent using epoxy resin, Curing agent is added to after abrasive material, filler, stirring solvent viscose mixture is made, after fiber is immersed into viscose mixture, plural pieces Fiber is superimposed, and is put into mould the cover half that pressurizes, and stamp is carried out after the demoulding, solidification obtains elastic grinding material.These patents are all with thermoplastic Property macromolecule is matrix material, complex manufacturing technology, production cycle length be present, low production efficiency, can only be processed and formed at one time, The shortcomings that can not carrying out repeatedly reclaiming cyclic process.
The content of the invention：
The technical problems to be solved by the invention are：A kind of hard alloy polishing thermoplasticity abrasive material is provided, the hard closes Golden polishing thermoplasticity abrasive material has good cutting ability, and wearability is good, and toughness is high, product is not produced during polishing pit, Cut, not chipping, cleaning is easy.And manufacturing process is simple, production efficiency is high, it is with short production cycle, green, can be more Secondary recovery cyclic process and use.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
Thermoplasticity abrasive material is used in a kind of hard alloy polishing, is made up of llowing group of materials according to the component of parts by weight：Abrasive material, 60- 80 parts；Thermal plastic high polymer, 19-35 parts；Dispersant, 0.1-1.5 parts；Lubricant, 0.1-1 parts；Antioxidant, 0.1-1.5 parts； Coupling agent, 0.6-2.4 parts；Industrial alcohol, 60-240 parts.
Preferably, the abrasive material is firm selected from aluminum oxide, carborundum, boron carbide, diamond, Brown Alundum, white fused alumina, zirconium Jade, microcrystal fused alumina, single alundum, pink fused alumina, Pr-Nb fused alumina, the one or more of black corundum and alumina alundum, institute The mesh number for stating abrasive material is 500 mesh to 3000 mesh.
Preferably, the thermal plastic high polymer is selected from polyolefin macromolecular, polystyrene family macromolecule, polyamide One or more in family macromolecule, polyester-based polymer, styrene copolymer macromolecule；
Preferably, the polyolefin macromolecular is selected from polypropylene, the one or more of polyethylene；
Preferably, the polystyrene family macromolecule is selected from high impact polystyrene；
Preferably, the polyamide-based macromolecule is selected from polyamide 6, polyamide 66, polyamide 11, polyamide 12 It is one or more kinds of；
Preferably, the polyester-based polymer is selected from polyethylene terephthalate, polybutylene terephthalate The one or more of ester；
Preferably, the styrene copolymer is selected from selected from acrylonitrile-butadiene-styrene copolymer, propylene One or more in nitrile-styrol copolymer or acrylonitrile-styrene-acrylic ester terpolymer.
Preferably, any one of the dispersant in stearic acid or amide-type dispersant；
Preferably, stearic acid dispersant further preferred stearic acid, calcium stearate, zinc stearate or the season penta One or several kinds of mixtures in tetrol stearate；
Preferably, the amide-type dispersant is one kind in erucyl amide, oleamide or ethylene bis stearamide Or several mixture.
Preferably, the lubricant is selected from paraffin, Tissuemat E, polyoxyethylene wax, polypropylene wax, polyester wax, crystallite The one or more of wax.
Preferably, the antioxidant is selected from primary antioxidant and synergistic antioxidant is used in combination, the primary antioxidant and synergistic resist Oxygen agent is by weight 1: 1 compounding；
Preferably, the primary antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] Ji Wusi Alcohol ester, β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyl) propionic acid, triethylene-glycol it is double [β-(the 3- tert-butyl groups- 5- methyl -4- hydroxy phenyls) propionic ester] it is one or more kinds of；
Preferably, the synergistic antioxidant is selected from three (2,4-DTBP) phosphite esters or thio-2 acid One or more in double lauryl alcohol esters or double (3,5- di-tert-butyl-phenyl) pentaerythritol diphosphites.
Preferably, one or more of the coupling agent in silane coupler or titanate coupling agent；
Preferably, the silane coupler is γ-methacryloxypropyl trimethoxy silane, γ-(2,3- The oxygen of epoxy third) one or more in propyl trimethoxy silicane or gamma-aminopropyl-triethoxy-silane, the metatitanic acid Ester coupling agent is the oleic acid acyloxy titanate esters of isopropyl three.
A kind of manufacture method of hard alloy polishing thermoplasticity abrasive material, step are as follows：
(1) 0.6-2.4 part coupling agents are added in 60-240 part industrial alcohol and be well mixed, be then added to stirring In machine, 60-80 part abrasive materials are added in mixer, water bath with thermostatic control heating stirring, after industrial alcohol volatilization is clean, gone out Expect drying, obtain surface-treated abrasive material.
(2) abrasive material after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring.
(3) by 19-35 parts thermal plastic high polymer, 0.1-1.5 parts dispersant, 0.1-1 parts lubricant, 0.1-1.5 part antioxygens Agent is added to the mixing of high-speed mixer high speed.
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, made Grain, obtains hard alloy polishing thermoplasticity abrasive material, and the thermoplasticity abrasive material is made into different shapes with injection machine.
Preferably, the temperature of stirring is 60-80 DEG C, speed of agitator 60-80r/min in the step (1), stirring Time is 40-60min, and drying temperature is 90-110 DEG C, drying time 6-8h；
Preferably, banburying-granulation all-in-one preheating temperature is 110-130 DEG C in the step (2), speed of agitator is 10-20r/min, preheating time 3-5min；
Preferably, the speed of step (3) the high speed mixer is 600-1000rmp, mixing temperature 40-60 DEG C, incorporation time 3-5min；
Preferably, banburying-granulation all-in-one melting temperature is 190-280 DEG C in the step (4), speed of agitator is 30-40r/min, mixing time 30-40min, the banburying-granulation all-in-one extrusion die temperature are 170-220 DEG C, are squeezed It is that 190-260 DEG C of screw speed is 15-25HZ to go out extruder temperature, and pelletizing speed is 40-50HZ.
Preferably, in the step (4) thermoplasticity abrasive material be shaped as circle, ellipse, cone, oblique circular cylinder shape, Rhombus, cube, positive tetrahedron shape, cube shaped one or more.
Preferably, mold temperature is 80-120 DEG C in the injection machine, the injection front portion temperature of the injection machine is 170-260 DEG C, injection middle portion temperature is 190-280 DEG C, and injection rear part temperature is 190-275 DEG C, injection pressure 1600- 2000kgf/cm2, injection speed 100-200mm/s, injection time 2-3s, dwell pressure 800-1000kgf/cm2, Pressurize speed is 20-40mm/s, dwell time 1-2s, cool time 10-20s.
Compared with prior art, usefulness of the present invention is：
(1) present invention is pre-processed using process for treating surface to abrasive material, and it is high with thermoplasticity effectively to enhance abrasive material Intermolecular cohesive, so as to ensure that bond strength between abrasive material and thermal plastic high polymer, make it effective in polishing process Prevent coming off for abrasive material.
(2) present invention carries out the hard alloy throwing of compound preparation using surface-treated abrasive material with thermal plastic high polymer Light thermoplasticity abrasives, the high molecular extrusion of conventional thermoplastic, the technique of injection can be used to be processed, preparation technology Simply, it is easily operated, it is with short production cycle, and raw material is cheap and easy to get, so as to substantially reduce production cost, improves production efficiency, With larger economic benefit.
(3) primary antioxidant that the present invention uses compounds with auxiliary anti-oxidant, produces cooperative effect, effectively improves hard alloy Polishing thermoplasticity abrasive material stability in process.
(4) present invention carries out the hard alloy throwing of compound preparation using surface-treated abrasive material with thermal plastic high polymer Light thermoplasticity abrasives, the good cutting ability of abrasive material and the high mechanical strength of thermal plastic high polymer are provided simultaneously with, Wearability is good, and pit, cut are not produced to workpiece the characteristics of good toughness and high impact strength, during polishing, not chipping, clearly Reason is easy.
(5) present invention carries out the hard alloy throwing of compound preparation using surface-treated abrasive material with thermal plastic high polymer Light thermoplasticity abrasives, it is green, can repeatedly reclaim cyclic process and use.
Embodiment：
With reference to embodiment, the present invention will be described in detail：
In following examples, all raw materials are all in parts by weight.
In following examples, using 10mm × 10mm × 5mm aluminium alloy sample block, it is carried out in vibratory finishing machine Polishing test, in 30min, testAluminium alloy sample blockSurface roughness Ra and Rz, Ra areProfile arithmetic average error, Rz It is10 points of height of nao-and micro relief。
Embodiment 1：
(1) surface treatment of abrasive material：1 part of coupling agent γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane is added to It is well mixed in 100 parts of industrial alcohol, adds in mixer, 60 parts of aluminum oxide (500 mesh) are added in mixer, in perseverance Tepidarium heating stirring, it is heated to be temperature 60 C, speed of agitator is 80 r/min., and mixing time 40min, alcohol volatilizees dry After discharge drying, drying temperature is 100 DEG C, drying time 7h；
(2) aluminum oxide after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring, in advance Hot temperature is 110 DEG C, rotating speed 10r/min, preheating time 5min；
(3) by 35 parts of polypropylene, 1.5 parts of stearic acid, 1 part of Tissuemat E, 0.75 part of antioxidant β-(3,5- di-t-butyls- 4- hydroxy phenyls) the positive octadecanol ester of propionic acid adds with 0.75 part of three (2,4-DTBP) phosphite ester synergistic antioxidant Enter to high-speed mixer high speed and mix, high-speed mixer speed is 1000rmp, and mixing temperature is 40 DEG C, mixes 3min；
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, made Grain, hard alloy polishing thermoplastic polypropylene abrasives being obtained, melting temperature is 190 DEG C, speed of agitator 30r/min, Mixing time is 40min, and extrusion die temperature is 170 DEG C, and extrusion screw rod temperature is 190 DEG C, and extrusion screw rod rotating speed is 25HZ, Pelletizing speed is 45HZ；
(5) hard alloy polishing can be molded with thermoplastic polypropylene abrasives, obtains the hard alloy of circle Thermoplastic polypropylene abrasive material is used in polishing；
The Shooting Technique is：Mold temperature is 80 DEG C, is molded anterior temperature as 170-180 DEG C, and injection middle portion temperature is 190-210 DEG C, 190-200 DEG C of rear portion, injection pressure 1700kgf/cm2, injection time 2s, cool time 10s.
The test of product correlated performance is shown in Table 1.
Embodiment 2：
(1) surface treatment of abrasive material：0.8 part of coupling agent gamma-aminopropyl-triethoxy-silane is added to 80 portions of industrial wine It is well mixed in essence, adds in mixer, 80 parts of diamonds (800 mesh) are added in mixer, is stirred in water bath with thermostatic control heating Mix, be heated to be temperature 70 C, speed of agitator 60r/min., mixing time 50min, discharge drying after alcohol volatilization is dry, does Dry temperature is 90 DEG C, drying time 8h；
(2) diamond after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring, in advance Hot temperature is 120 DEG C, rotating speed 15r/min, preheating time 4min；
(3) by 18 parts of polyamide 6s, 0.3 part of pentaerythrite stearate, 0.6 part of microwax, 0.15 part of antioxidant four [β- (3,5- di-tert-butyl-hydroxy phenyl) propionic ester] the double lauryl alcohol ester synergistics of pentaerythritol ester and 0.15 part of thio-2 acid resist Oxygen agent is added to the mixing of high-speed mixer high speed, and high-speed mixer speed is 800rmp, and mixing temperature is 50 DEG C, mixing 4min；
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, made Grain, hard alloy polishing polyamide thermoplastic abrasives being obtained, melting temperature is 250 DEG C, speed of agitator 40r/min, Mixing time is 35min, and extrusion die temperature is 185 DEG C, and extrusion screw rod temperature is 230 DEG C, and extrusion screw rod rotating speed is 20HZ, Pelletizing speed is 50HZ；
(5) hard alloy polishing is molded with polyamide thermoplastic abrasives, the hard alloy for obtaining taper is thrown Light polyamide thermoplastic abrasive material；
The Shooting Technique is：Mold temperature is 100 DEG C, is molded anterior temperature as 210-220 DEG C, is molded middle portion temperature For 240-260 DEG C, 235-255 DEG C of rear portion, injection pressure 2000kgf/cm2, injection time 3s, cool time 15s.
The test of product correlated performance is shown in Table 1.
Embodiment 3：
(1) surface treatment of abrasive material：2.4 parts of oleic acid acyloxy titanate esters of coupling agent isopropyl three are added to 240 parts of works It is well mixed in industry alcohol, adds in mixer, 68 parts of white fused aluminas (1500 mesh) are added in mixer, in water bath with thermostatic control Heating stirring, it is heated to be 80 DEG C, speed of agitator 70r/min., mixing time 60min of temperature, is discharged after alcohol volatilization is dry Dry, drying temperature is 110 DEG C, drying time 6h；
(2) diamond after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring, in advance Hot temperature is 130 DEG C, rotating speed 20r/min, preheating time 3min；
(3) 27 parts of polybutylene terephthalate (PBT)s, 0.6 part of ethylene bis stearamide, 1 part of polyester wax, 0.5 part are resisted Oxygen agent triethylene-glycol double [β-(the 3- tert-butyl group -5- methyl -4- hydroxy phenyls) propionic ester] and 0.5 part of double (3,5- bis- tertiary fourth Base phenyl) pentaerythritol diphosphites synergistic antioxidant be added to high-speed mixer high speed mixing, high-speed mixer speed For 600rmp, mixing temperature is 60 DEG C, mixes 5min；
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, made Grain, hard alloy polishing thermoplastic poly mutual-phenenyl two acid bromide two alcohol ester's abrasives are obtained, melting temperature is 280 DEG C, stirring Rotating speed is 35r/min, and mixing time 30min, extrusion die temperature is 220 DEG C, and extrusion screw rod temperature is 260 DEG C, extrudes spiral shell Bar rotating speed is 15HZ, and pelletizing speed is 40HZ；
(5) the hard alloy polishing that step 4 obtains is carried out with thermoplastic poly mutual-phenenyl two acid bromide two alcohol ester abrasives Injection, obtain hard alloy polishing thermoplastic poly mutual-phenenyl two acid bromide two alcohol ester's abrasive material of ellipse；
The Shooting Technique is：Mold temperature is 120 DEG C, is molded anterior temperature as 250-260 DEG C, is molded middle portion temperature For 260-280 DEG C, 255-275 DEG C of rear portion, injection pressure 1600kgf/cm2, injection time 2.5s, cool time is 20s。
The test of product correlated performance is shown in Table 1.
Embodiment 4：
(1) surface treatment of abrasive material：0.6 part of coupling agent γ-methacryloxypropyl trimethoxy silane is added It is well mixed into 60 parts of industrial alcohol, adds in mixer, 72 parts of Brown Alundums (2000 mesh) are added in mixer, Water bath with thermostatic control heating stirring, it is heated to be temperature 60 C, speed of agitator 70r/min., mixing time 50min, alcohol volatilization Discharge drying after dry, and drying temperature is 100 DEG C, drying time 6h；
(2) Brown Alundum after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring, in advance Hot temperature is 120 DEG C, rotating speed 18r/min, preheating time 4min；
(3) by 26.2 parts of acrylonitrile-butadiene-styrene copolymers, 0.1 part of erucyl amide, 1 part of paraffin, 0.05 part of master [β-(3, the 5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester of antioxidant four and 0.05 part of double (3,5- di-t-butyl Phenyl) pentaerythritol diphosphites synergistic antioxidant is added to the mixing of high-speed mixer high speed, and high-speed mixer speed is 600rmp, mixing temperature are 60 DEG C, mix 5min；
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, made Grain, obtains hard alloy polishing thermoplastic acrylonitrile-butadiene diene-styrene copolymer abrasives, melting temperature 260 DEG C, speed of agitator 40r/min, mixing time 30min, extrusion die temperature are 210 DEG C, and extrusion screw rod temperature is 240 DEG C, extrusion screw rod rotating speed is 20HZ, and pelletizing speed is 45HZ；
(5) the hard alloy polishing thermoplastic acrylonitrile-butadiene diene-styrene copolymer abrasive material material for obtaining step 4 Material is molded, and obtains the hard alloy polishing thermoplastic acrylonitrile-butadiene diene-styrene copolymer abrasive material of oblique circular cylinder shape；
The Shooting Technique is：Mold temperature is 100 DEG C, is molded anterior temperature as 240-250 DEG C, is molded middle portion temperature For 240-260 DEG C, 245-255 DEG C of rear portion, injection pressure 1800kgf/cm2, injection time 2s, cool time 10s.
The test of product correlated performance is shown in Table 1.
Embodiment 5：
(1) surface treatment of abrasive material：2 parts of coupling agent gamma-aminopropyl-triethoxy-silanes are added to 200 portions of industrial wine It is well mixed in essence, adds in mixer, 60 parts of carborundum (1500 mesh) are added in mixer, is heated in water bath with thermostatic control Stirring, it is heated to be 80 DEG C, speed of agitator 60r/min., mixing time 60min of temperature, discharge drying after alcohol volatilization is dry, Drying temperature is 110 DEG C, drying time 5h；
(2) carborundum after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring, in advance Hot temperature is 130 DEG C, rotating speed 20r/min, preheating time 5min；
(3) by 35 parts of high impact polystyrenes, 0.1 part of zinc stearate, 0.1 part of polypropylene wax, 0.7 part of primary antioxidant two Contracting triethylene glycol double [β-(the 3- tert-butyl group -5- methyl -4- hydroxy phenyls) propionic ester] and the double lauryl alcohols of 0.7 part of thio-2 acid Ester synergistic antioxidant is added to the mixing of high-speed mixer high speed, and high-speed mixer speed is 1000rmp, mixing temperature 40 DEG C, mix 5min；
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) be kneaded, It is granulated, obtains hard alloy polishing thermoplastic polystyrene abrasives, melting temperature is 190 DEG C, speed of agitator 40r/ Min, mixing time 30min, extrusion die temperature are 170 DEG C, and extrusion screw rod temperature is 185 DEG C, and extrusion screw rod rotating speed is 25HZ, pelletizing speed are 50HZ；
(5) the hard alloy polishing that step 4 obtains is molded with thermoplastic polystyrene abrasives, stood Thermoplastic polystyrene abrasive material is used in the hard alloy polishing of cube shape；
The Shooting Technique is：Mold temperature is 80 DEG C, is molded anterior temperature as 170-180 DEG C, and injection middle portion temperature is 180-200 DEG C, 190-210 DEG C of rear portion, injection pressure 1600kgf/cm2, injection time 2.5s, cool time 15s.
The test of product correlated performance is shown in Table 1.
Surface roughness Ra and Rz test tables 1
Table 1 is tested by surface roughness Ra and Rz, in 30min, Ra and Rz gradually subtract with the increase of time It is small, therefore the hard alloy polishing thermoplasticity abrasive material of the present invention has good cutting ability and polishing performance, and wearability Good, toughness is high, and pit, cut are not produced to product in polishing, not chipping, can meet its actual operation requirements.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation here Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be Within protection scope of the present invention.
It is emphasized that：It the above is only presently preferred embodiments of the present invention, not the present invention made any formal Limitation, any simple modification that every technical spirit according to the present invention is made to above example, equivalent variations are with repairing Decorations, in the range of still falling within technical solution of the present invention.

Claims (10)

1. thermoplasticity abrasive material is used in a kind of hard alloy polishing, it is characterised in that is made up of llowing group of materials according to the component of parts by weight： Abrasive material, 60-80 parts；Thermal plastic high polymer, 19-35 parts；Dispersant, 0.1-1.5 parts；Lubricant, 0.1-1 parts；Antioxidant, 0.1- 1.5 part；Coupling agent, 0.6-2.4 parts；Industrial alcohol, 60-240 parts.
2. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The abrasive material is selected from oxidation Aluminium, carborundum, boron carbide, diamond, Brown Alundum, white fused alumina, fused alumina zirconia, microcrystal fused alumina, single alundum, pink fused alumina, praseodymium neodymium are firm The one or more of beautiful, black corundum and alumina alundum, the mesh number of the abrasive material is 500 mesh to 3000 mesh.
3. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The thermal plastic high polymer Selected from polyolefin macromolecular, polystyrene family macromolecule, polyamide-based macromolecule, polyester-based polymer, phenylethylene copolymerization One or more in thing macromolecule；
The polyolefin macromolecular is selected from polypropylene, the one or more of polyethylene；
The polystyrene family macromolecule is selected from high impact polystyrene；
The polyamide-based macromolecule is selected from polyamide 6, polyamide 66, polyamide 11, the one or more of polyamide 12；
The polyester-based polymer is selected from polyethylene terephthalate, one kind or one kind of polybutylene terephthalate (PBT) More than；
The styrene copolymer is selected from selected from acrylonitrile-butadiene-styrene copolymer, acrylonitritrile-styrene resin Or the one or more in acrylonitrile-styrene-acrylic ester terpolymer.
4. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The dispersant is selected from hard Any one in resin acid class or amide-type dispersant；
In the further preferred stearic acid of the stearic acid dispersant, calcium stearate, zinc stearate or pentaerythrite stearate One or several kinds of mixtures；
The amide-type dispersant is one or several kinds of mixing in erucyl amide, oleamide or ethylene bis stearamide Thing.
5. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The lubricant is selected from stone Wax, Tissuemat E, polyoxyethylene wax, polypropylene wax, polyester wax, the one or more of microwax.
6. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The antioxidant is selected from master Antioxidant and synergistic antioxidant are used in combination, and primary antioxidant and the synergistic antioxidant is by weight 1: 1 compounding；
The primary antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol esters, β-(3,5- bis- Tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, the double [β-(the 3- tert-butyl group -5- methyl -4- hydroxy benzenes of triethylene-glycol Base) propionic ester] it is one or more kinds of；
The synergistic antioxidant is selected from three (2,4-DTBP) phosphite esters or the double lauryl alcohol esters or double of thio-2 acid One or more in (3,5- di-tert-butyl-phenyl) pentaerythritol diphosphites.
7. thermoplasticity abrasive material is used in hard alloy polishing according to claim 1, it is characterised in that：The coupling agent is selected from silicon One or more in alkane coupling agent or titanate coupling agent；
The silane coupler is γ-methacryloxypropyl trimethoxy silane, γ-(2,3- the third oxygen of epoxy) propyl group three One or more in methoxy silane or gamma-aminopropyl-triethoxy-silane, the titanate coupling agent are isopropyl Three oleic acid acyloxy titanate esters.
8. a kind of manufacture method of hard alloy polishing thermoplasticity abrasive material, it is characterised in that step is as follows：
(1) 0.6-2.4 part coupling agents are added in 60-240 part industrial alcohol and are well mixed, is then added in mixer, 60-80 part abrasive materials are added in mixer, water bath with thermostatic control heating stirring, after industrial alcohol volatilization is clean, discharge drying, Obtain surface-treated abrasive material.
(2) abrasive material after step (1) is surface-treated is added in banburying-granulation all-in-one to be preheated while stirring.
(3) 19-35 parts thermal plastic high polymer, 0.1-1.5 parts dispersant, 0.1-1 parts lubricant, 0.1-1.5 part antioxidant are added Enter to high-speed mixer high speed and mix.
(4) mixed material that step (3) obtains is added in banburying-granulation all-in-one of step (2) and is kneaded, be granulated, obtained Different shapes is made in the thermoplasticity abrasive material to hard alloy polishing thermoplasticity abrasive material, and with injection machine.
9. the manufacture method of hard alloy polishing thermoplasticity abrasive material according to claim 8, it is characterised in that：The step Suddenly the temperature of stirring is 60-80 DEG C, speed of agitator 60-80r/min, mixing time 40-60min in (1), and drying temperature is 90-110 DEG C, drying time 6-8h；
Banburying-granulation all-in-one preheating temperature is 110-130 DEG C, speed of agitator 10-20r/min in the step (2), preheating Time is 3-5min；
The speed of step (3) the high speed mixer is 600-1000rmp, and mixing temperature is 40-60 DEG C, incorporation time 3- 5min；
Banburying-granulation all-in-one melting temperature is 190-280 DEG C, speed of agitator 30-40r/min in the step (4), is kneaded Time is 30-40min, and the banburying-granulation all-in-one extrusion die temperature is 170-220 DEG C, and extrusion screw rod temperature is 190- 260 DEG C of screw speeds are 15-25HZ, and pelletizing speed is 40-50HZ.
Thermoplasticity abrasive material is shaped as circle, ellipse, cone, oblique circular cylinder shape, rhombus, cube, just in the step (4) Tetrahedroid, cube shaped one or more.
10. the manufacture method of hard alloy polishing thermoplasticity abrasive material according to claim 8, it is characterised in that：It is described Mold temperature is 80-120 DEG C in injection machine, and the injection front portion temperature of the injection machine is 170-260 DEG C, and injection middle portion temperature is 190-280 DEG C, injection rear part temperature is 190-275 DEG C, injection pressure 1600-2000kgf/cm2, injection speed 100- 200mm/s, injection time 2-3s, dwell pressure 800-1000kgf/cm2, pressurize speed is 20-40mm/s, the dwell time For 1-2s, cool time 10-20s.
CN201711004407.1A 2017-10-17 2017-10-17 Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing Pending CN107674304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711004407.1A CN107674304A (en) 2017-10-17 2017-10-17 Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711004407.1A CN107674304A (en) 2017-10-17 2017-10-17 Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing

Publications (1)

Publication Number Publication Date
CN107674304A true CN107674304A (en) 2018-02-09

Family

ID=61141677

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711004407.1A Pending CN107674304A (en) 2017-10-17 2017-10-17 Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing

Country Status (1)

Country Link
CN (1) CN107674304A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108659715A (en) * 2018-05-11 2018-10-16 浙江平湖领新材料科技有限公司 A kind of polishing thermoplastic polyurethane optics auxiliary material and preparation method thereof
CN108838386A (en) * 2018-06-28 2018-11-20 武汉新锐合金工具有限公司 A kind of carbide alloy mixture preparation method using modified waxes forming agent
CN108892821A (en) * 2018-07-25 2018-11-27 中山国鳌智能科技有限公司 A kind of high temperature resistant test abrasive material and preparation method thereof
EP3670589A1 (en) * 2018-12-20 2020-06-24 LANXESS Deutschland GmbH Polyamide compositions
CN111363224A (en) * 2020-03-31 2020-07-03 深圳市长旺工业材料有限公司 Synthetic abrasive and preparation method thereof
WO2021195991A1 (en) * 2020-03-31 2021-10-07 深圳市长旺工业材料有限公司 Synthetic abrasive and preparation method therefor
CN113527876A (en) * 2021-07-20 2021-10-22 西安特种设备检验检测院 Polymer/ceramic composite material for elevator guide shoe liner, preparation method and application
CN113861670A (en) * 2021-09-30 2021-12-31 西安特种设备检验检测院 Wear-resistant self-lubricating composite material for elevator guide shoe liner, and preparation method and application thereof
CN115070628A (en) * 2022-06-28 2022-09-20 阳江市伟艺抛磨材料有限公司 Preparation method of burnout-proof polishing wheel for wood and polishing wheel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1615348A (en) * 2001-12-20 2005-05-11 Ppg工业俄亥俄公司 Polishing pad
CN103965832A (en) * 2013-01-30 2014-08-06 比亚迪股份有限公司 Polishing abrasive and preparation method thereof
CN105778861A (en) * 2014-12-24 2016-07-20 深圳富泰宏精密工业有限公司 Elastic abrasive particle and manufacturing method thereof
CN106366637A (en) * 2016-10-31 2017-02-01 湖南科技大学 Method for preparing brown-fused-alumina-based polishing synthetic paper
CN107127691A (en) * 2016-08-25 2017-09-05 王建秋 Polyurethane matrix stone grinding polished silicon wafer and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1615348A (en) * 2001-12-20 2005-05-11 Ppg工业俄亥俄公司 Polishing pad
CN103965832A (en) * 2013-01-30 2014-08-06 比亚迪股份有限公司 Polishing abrasive and preparation method thereof
CN105778861A (en) * 2014-12-24 2016-07-20 深圳富泰宏精密工业有限公司 Elastic abrasive particle and manufacturing method thereof
CN107127691A (en) * 2016-08-25 2017-09-05 王建秋 Polyurethane matrix stone grinding polished silicon wafer and preparation method thereof
CN106366637A (en) * 2016-10-31 2017-02-01 湖南科技大学 Method for preparing brown-fused-alumina-based polishing synthetic paper

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108659715A (en) * 2018-05-11 2018-10-16 浙江平湖领新材料科技有限公司 A kind of polishing thermoplastic polyurethane optics auxiliary material and preparation method thereof
CN108838386A (en) * 2018-06-28 2018-11-20 武汉新锐合金工具有限公司 A kind of carbide alloy mixture preparation method using modified waxes forming agent
CN108838386B (en) * 2018-06-28 2020-08-07 武汉新锐合金工具有限公司 Preparation method of hard alloy mixture by adopting modified wax forming agent
CN108892821A (en) * 2018-07-25 2018-11-27 中山国鳌智能科技有限公司 A kind of high temperature resistant test abrasive material and preparation method thereof
EP3670589A1 (en) * 2018-12-20 2020-06-24 LANXESS Deutschland GmbH Polyamide compositions
CN111363224A (en) * 2020-03-31 2020-07-03 深圳市长旺工业材料有限公司 Synthetic abrasive and preparation method thereof
WO2021195991A1 (en) * 2020-03-31 2021-10-07 深圳市长旺工业材料有限公司 Synthetic abrasive and preparation method therefor
CN113527876A (en) * 2021-07-20 2021-10-22 西安特种设备检验检测院 Polymer/ceramic composite material for elevator guide shoe liner, preparation method and application
CN113861670A (en) * 2021-09-30 2021-12-31 西安特种设备检验检测院 Wear-resistant self-lubricating composite material for elevator guide shoe liner, and preparation method and application thereof
CN115070628A (en) * 2022-06-28 2022-09-20 阳江市伟艺抛磨材料有限公司 Preparation method of burnout-proof polishing wheel for wood and polishing wheel

Similar Documents

Publication Publication Date Title
CN107674304A (en) Thermoplasticity abrasive material and its manufacture method are used in a kind of hard alloy polishing
CN107674294A (en) One kind polishing thermoplastic elastic abrasive material and preparation method thereof
US5607488A (en) Molded abrasive article and process
EP0695614B1 (en) Process and apparatus for extruding mixtures of thermoplastic and thermoset materials and products made therefrom
JP2007537905A (en) Method for producing injection molded abrasive article
CN1868679A (en) Block tool for surface finishing operations and method of obtaining the same
JP5707403B2 (en) Production method and use of leather pellets and compound granules
JPH05253849A (en) Abrasive article, and its manufacture
CN101531799A (en) PMMA/wood plastic composite rostone material and the preparing method thereof
CN104231425A (en) PMMA/wood-plastic artificial stone composite material and preparation method thereof
CN106145810A (en) A kind of artificial stone of resistance to water logging and preparation method thereof
CN101766934B (en) High-density polyethylene modified filter press plate and making method
CN109161132A (en) Polyvinyl chloride automobile interior trimming panel and preparation method thereof
CN201534828U (en) PMMA wood-plastic artificial stone composite material
CN110125822A (en) Fixed grinding tool and preparation method thereof for sapphire substrate wafer grinding
KR100765985B1 (en) Thermoplastic resin composition for rotational molding process using rubber mold and resin composition by the method
CN108659715A (en) A kind of polishing thermoplastic polyurethane optics auxiliary material and preparation method thereof
CN105237877B (en) High molecular nanometer outdoor antiskid plate and preparation method thereof
CN101637886B (en) Preparation method of resin cutting piece used for cutting metallurgical sample
KR100319419B1 (en) abrasive
CN105017666A (en) Magnetic material and preparation method thereof
CN101804678B (en) Method for eliminating marks on surface of colored injection mouldings
JPH101547A (en) Abrasive
CN102850776B (en) Manufacturing method of polyurethane cyclone accessory
CN104774404A (en) Method for preparing PVC (polyvinyl chloride)-based wood-plastic composite material by using wood sawdust flour

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20180209

RJ01 Rejection of invention patent application after publication