CN105856089A - Grinding composite body and preparation method thereof - Google Patents

Grinding composite body and preparation method thereof Download PDF

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Publication number
CN105856089A
CN105856089A CN201610381173.1A CN201610381173A CN105856089A CN 105856089 A CN105856089 A CN 105856089A CN 201610381173 A CN201610381173 A CN 201610381173A CN 105856089 A CN105856089 A CN 105856089A
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CN
China
Prior art keywords
abrasive
diamond
oxide
grinding
composite
Prior art date
Application number
CN201610381173.1A
Other languages
Chinese (zh)
Inventor
朱联烽
田多胜
Original Assignee
东莞市中微纳米科技有限公司
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.)
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Publication date
Application filed by 东莞市中微纳米科技有限公司 filed Critical 东莞市中微纳米科技有限公司
Priority to CN201610381173.1A priority Critical patent/CN105856089A/en
Publication of CN105856089A publication Critical patent/CN105856089A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/11Lapping tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/04Physical 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 inorganic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/20Physical 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
    • B24D3/28Resins or natural or synthetic macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • C09K3/1409Abrasive particles per se
    • C09K3/1418Abrasive particles per se obtained by division of a mass agglomerated by sintering

Abstract

The invention relates to the field of grinding material products and particularly relates to a grinding composite body capable of being applied to grinding hard and crispy materials including a ceramic workpiece or a sapphire and the like and a preparation method of the grinding composite body. The composite body is mainly composed of a sintering composite grinding material and resin, wherein the sintering composite grinding material is composed of a diamond and an inorganic bonding agent; the diamond is a monocrystalline diamond or a polycrystalline diamond or a mixture thereof; the particle granularity of the diamond is 0.2-380 microns; in the sintering composite grinding material, the content of the diamond is 10%-80%; and the inorganic bonding agent is formed by mixing silicon oxide, bismuth oxide, boron oxide, cerium oxide, zinc oxide, iron oxide and copper oxide. The sintering composite grinding material provided by the invention has extremely high rigidity and strength, and the diamond is tightly stuck and is not easy to fall off; and meanwhile, the binding force between the sintering composite grinding material and the resin is enhanced, and the sintering composite grinding material can resist falling in a grinding process and has relatively strong tolerance, so that the cutting rate of the hard and crispy materials is improved and the service life of a consolidated grinding material product is prolonged.

Description

A kind of abrasive composite and preparation method thereof
Technical field
The present invention relates to abrasive product field, espespecially can be applicable to the one of the hard brittle materials such as milled ceramic workpiece or sapphire Plant abrasive composite and preparation method thereof.
Background technology
Synthetic sapphire is a kind of monocrystal material with extreme hardness, good light permeability.This material is by widely Medium as LED substrate, guided missile dome, high-grade watch mirror, mobile phone window screen, camera lens device;Synthetic sapphire Need, through polishing, just there is good transparency, but owing to its hardness is high, grinding and polishing difficulty is the biggest;Existing sapphire Surface process and general use free type grinding and polishing, be i.e. directed to use with grinding and polishing liquid;Grinding and polishing liquid is a kind of by superhard The liquid system that abrasive material and liquid-mixing are set to, by this liquid input to plane lapping equipment, sapphire plane workpiece is positioned at and grinds In mill equipment, under the motion of mill and abrasive material, the fluctuating of sapphire surface is removed, and surface progressivelyes reach smooth;Surface is thick Rugosity is relevant with the granularity of abrasive material, and granularity is the least, and roughness is the lowest;The material surface quality that free type glossing obtains is very Good, scuffing rate is low;But this technique there is also many, and problem, such as working (machining) efficiency are low, energy consumption is big, liquid waste processing is difficult, and production capacity cannot Promote;Additionally using lapping liquid auxiliary material huge, cost is difficult to decline.
Relative to conventional abrasive material free type process for, solidified abrasive grinding polishing technology meet the tendency in this context and Raw;Abrasive grain binding agent is mainly fixed by concretion abrasive, and abrasive particle and workpiece that abutment surface is protruding interact, and reach The effect that material is removed;Employing solidified abrasive grinding polishes, and has higher working (machining) efficiency, can reduce process for treating waste liquor and workpiece Cleaning, significantly reduce environmental pollution;The more important thing is, solidified abrasive grinding throwing mode is possible not only to lifting and adds work efficiency Rate, moreover it is possible to extremely efficiently utilize abrasive material, greatly reduces the usage amount of the high super hard abrasive of price so that grind cost big Width declines;The supply making the high-volume low cost of sapphire product obtains may.
The concrete corresponding product of concretion abrasive polishing technology is a lot, has emery wheel, abrasive disk, grinding pad or grinds first-class;This A little products are by being molded with assembling or mould profile after compound to abrasive material and binding agent;The bonding agent that concretion abrasive is conventional has metal Bonding agent (such as Chinese patent 201080032139.4, metal-bonded grinding wheel and manufacture method thereof), resinoid bond are (such as China Patent 201110329216.9, a kind of resin wheel and preparation method thereof) and vitrified bond (such as Chinese patent 200910225700.X, vitrified bonded grinding wheel) etc.;Abrasive material can be consolidated and reach grinding effect by these schemes well;Gold Bonded abrasive article prepared by genus bonding agent and vitrified bond has high stock-removing efficiency, but surface of the work easily produces and draws Wound, causes product rejection unrepairable;The surface of the work that resinoid bond bonded abrasive article processes is good, but stock-removing efficiency is relatively Low.
In resin type concretion abrasive product, generally use monodispersed superhard material as abrasive material, weigh super the most in proportion Hard material and corresponding auxiliary packing, remix resin and insert mould molding.The Chinese invention of such as Lan Si Science and Technology Ltd. Patent application 201510188055.4, by diamond dust and molybdenum bisuphide, wollastonite, aerosil and resinoid bond It is blended, then by mould molding, is prepared as composite diamond abrasive block;The resin that Chinese invention patent 201110329216.9 is announced Emery wheel, is blended Brown Alundum, ice crystal and phenolic resin, is prepared as resin wheel, has and is not easily blocked and good self-sharpening Advantage.
In the art, in addition to using single superhard material as abrasive material, people is also had to be prepared as being combined by abrasive particle Abrasive particle makes resin type consolidation abrasive product again, it is therefore an objective to increases the cohesive force of abrasive material and resin, makes resin bonded abrasive product Life-span longer, stock removal rate is higher;Chinese invention patent 201310675871.9 discloses the system of a kind of single-crystal diamond abrasive particle Making method, by micron order single-crystal diamond and metal powder co-sintering, diamond is bondd by metal and is coated with, obtained diamond Abrasive particle presents the rough morphology of uniqueness, has higher self-sharpening;Chinese invention patent 201310663857.7 discloses one The preparation method of self-sharpening diamond abrasive particle, uses diamond abrasive to be blended with iron, cobalt, manganese simple substance or their alloy powder and burns Knot, it is thus achieved that self-sharpening diamond abrasive particle;The Chinese invention patent 02828130.6 of 3M company discloses a kind of zirconia grain, The metal oxide co-sintering using polycrystal zirconia and plurality of stable zirconium oxide is broken prepared;The middle promulgated by the State Council of 3M company Bright patent 02818937.X also disclosed a kind of fused alumina grain, by the Multimetal oxide such as aluminum oxide and silica Co-sintering is also broken into the alumina composite particle of different size granularity;The preparation method of more fused alumina grain can be joined Examine United States Patent (USP) 1161620,1192709,1247337,1268533 and 2424645;And fused alumina-zirconia grain Preparation method can find in following United States Patent (USP), United States Patent (USP) 3891408,3781172, and 3893826,4126429, 4457767 and 5143522.United States Patent (USP) 5023212 and 5336280 discloses the preparation method of consolidation nitrogen oxides abrasive particle.
Although resin bonded abrasive product based on Compostie abrasive particles has many patents, but wants according to the grinding of sapphire workpiece Sue for peace actually used situation, such as, prevent surface of the work from scratching, it is desirable to have and high grind clearance and relatively low rough surface Degree etc., grinding technics need nonetheless remain for the concretion abrasive product of other novel Compostie abrasive particles bases, it is therefore desirable to unique material is joined Side and manufacturing process.
Sapphire be a kind of composition be the crystalline material of the extreme hardness of aluminum oxide, its hardness is only second to diamond, compound Sapphire grinding cutting is imitated by abrasive particle such as fused alumina grain, fused alumina-zirconia grain, nitrogen oxides abrasive particle Rate is relatively low;The diamond abrasive grain that metal burns diamond abrasive grain altogether or other oxides burn altogether has higher hardness, cutting Power is relatively strong, but surface tear more problems, the life-span is short;In order to prevent card from blocking, above-mentioned abrasive compound consolidation product is using Time need often finishing, fluting, complex operation, workload is big.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is desirable to provide a kind of abrasive product field, espespecially can be applicable to grind A kind of abrasive composite of the mill hard brittle material such as ceramic workpiece or sapphire and preparation method thereof.
The technical scheme that the present invention mainly uses: a kind of abrasive composite, described complex is mainly by sintered combined mill Material and resin form;Wherein said sintered combined abrasive material is made up of diamond and inorganic binder;
In described sintered combined abrasive material, diamond content is 10% ~ 80%;
Described diamond is single-crystal diamond or polycrystalline diamond or combinations thereof thing, the grain graininess of diamond is 0.2 ~ 380 um;
Described inorganic binder is by silica, bismuth oxide, boron oxide, cerium oxide, zinc oxide, iron oxide and cupric oxide mixing group Becoming, each composition proportioning by mass percentage is as follows:
Silica 20% ~ 50%
Bismuth oxide 10% ~ 20%
Boron oxide 4% ~ 8%
Cerium oxide 5% ~ 8%
Zinc oxide 3% ~ 9%
Iron oxide 1% ~ 3%
Cupric oxide 10% ~ 15%.
The preparation method of a kind of abrasive composite, described preparation method mainly comprises the steps that
First: prepare sintered combined abrasive material
(1) dispensing: weigh raw material by this weight ratio and mix with mixer, diamond 8% ~ 50%, inorganic binder 15% ~ 60%, deionized water 30% ~ 50%;
(2) baking material: the slurry stirred is poured into and dries in heating platen surface, it is thus achieved that blank;
(3) sintering: blank is loaded in crucible, be placed in vacuum drying oven, be evacuated to 20 ~ 2Pa, be warming up to 500 ~ 1000oC protects Temperature 1 ~ 8 hour, insulation naturally cools to room temperature after terminating, it is thus achieved that sintering feed;
(4) powder crushes: sintering feed powder crusher crushed, and by varigrained sintered combined abrasive material sieving and grading.
Second: preparation abrasive composite
(1) dispensing: weigh following raw material by this weight ratio and mix with mixer, sintered combined abrasive material 20% ~ 90%, tree Fat 80% ~ 10%;
(2) compound is filled to mould inner pressure in fact, be placed in 25 ~ 100oHeat cure shaping in C baking oven, it is thus achieved that grind compound Body.
Described sintered combined abrasive grain is 1 ~ 2000 um.
The particle diameter of described single sintered combined abrasive grain is 2 times or more than 2 times of single diamond particles particle diameter.
Described resin is polyurethane resin, phenolic resin, acrylic resin, a kind of in epoxy resin or their group Close.
The beneficial effects are mainly as follows: abrasive body is mainly made up of resin and sintered combined abrasive material, wherein burns Knot abrasive compound crushes screening after being burnt altogether by diamond and inorganic binder and forms.Many diamonds are bonded in by inorganic binder Forming bulky grain together to reunite, this sintered combined abrasive material has high hardness, and part diamond is exposed to sintering again simultaneously Close the surface of abrasive material, form unique Rough Horizontal Plane;The most sintered combined abrasive particle has high hardness and intensity, diamond Bondd very consolidation, is difficult to be ground disengaging, and the most sintered combined abrasive material strengthens with the adhesion of resin, and abrasive material is at mill Can resist during cutting and come off, tolerance is higher, thus improves the stock removal rate of hard brittle material and extend concretion abrasive product Life-span.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of abrasive composite of the present invention.
Fig. 2 is a kind of Typical abrasive mode of abrasive composite of the present invention, i.e. disk cylindrical lapping mode.
Fig. 3 is the another kind of Typical abrasive mode of abrasive composite of the present invention, i.e. disk card lapping mode.
Accompanying drawing mark explanation: 100-abrasive composite;101-resin;The sintered combined abrasive material of 102-;103-diamond;104- Inorganic binder.
Detailed description of the invention
The embodiment of detailed description patent of the present invention below in conjunction with the accompanying drawings:
As it is shown in figure 1, abrasive composite (100) is made up of resin (101) and sintered combined abrasive material (102), the most sintered combined Abrasive material (102) is made up of diamond (103) and inorganic binder (104), and the preparation method of described abrasive composite is as follows:
Specific embodiment one
First: prepare sintered combined abrasive material
(1) configuration inorganic binder (104): weigh oxide powder by this weight ratio and stir, it is thus achieved that inorganic binder (104) powder.Silica 50%, bismuth oxide 20%, boron oxide 5%, stannous oxide 5%, zinc oxide 3%, iron oxide 2%, oxygen Change copper 15%.
(2) weigh raw material by this weight ratio and mix with mixer, diamond (103) 30%, inorganic binder (104) 20%, deionized water 50%;Diamond (103) granularity is 26 ~ 36 um.
(3) baking material: the slurry stirred is poured into and dries in heating platen surface, it is thus achieved that blank;
(4) sintering: blank is loaded in crucible, be placed in vacuum drying oven, be evacuated to 10Pa, be warming up to 800oIt is little that C is incubated 8 Time, insulation naturally cools to room temperature after terminating, it is thus achieved that sintering feed;
(5) powder crushes: sintering feed powder crusher crushed, and by varigrained sintered combined abrasive material sieving and grading; Filter out the sintered combined abrasive material that granularity is 60 ~ 100 um standby.
Second: preparation abrasive composite
(1) dispensing: weigh following raw material by this weight ratio and mix with mixer, sintered combined abrasive material 90%, asphalt mixtures modified by epoxy resin Fat 10%;
(2) compound is filled to mould inner pressure in fact, be placed in 25oC~100 oHeat cure shaping in C baking oven, it is thus achieved that grind multiple Fit.Abrasive composite typical appearance form after shaping is as shown in Figures 2 and 3.Fig. 2 illustrates a kind of emery wheel product, will grind Workpiece, at the cylindrical of circle wheel, is ground with cylindrical or polishes by mill complex preparation.Fig. 3 illustrates a kind of flat tool, Abrasive composite is prepared in the card of disk, with disk card workpiece is ground or polishes.
Specific embodiment two
First: prepare sintered combined abrasive material
Identical with the first step in embodiment one, differ only in: the diamond using granularity to be 1 ~ 5 um in embodiment two (103) burn altogether with inorganic binder (104);The particle filter of the most sintered combined abrasive material is that 10 ~ 100 um use;
Second: preparation abrasive composite
Identical with the second step in embodiment one, differ only in: embodiment two uses polyurethane as resin;
Specific embodiment three
First: prepare sintered combined abrasive material
Identical with the first step in embodiment one, differ only in: the Buddha's warrior attendant using granularity to be 0.1 ~ 1 um in embodiment three Stone (103) burns altogether with inorganic binder (104);The particle filter of the most sintered combined abrasive material is that 1 ~ 10 um uses;
Second: preparation abrasive composite
Identical with the second step in embodiment one, differ only in: embodiment three uses phenolic resin as resin.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the technical scope of the present invention, one's own profession The technical staff of industry, under the inspiration of the technical program, can make some deformation and amendment, every technology according to the present invention Any amendment, equivalent variations and the modification that above embodiment is made by essence, all still falls within the scope of technical solution of the present invention In.

Claims (5)

1. an abrasive composite, it is characterised in that: described complex is mainly made up of sintered combined abrasive material and resin;Wherein Described sintered combined abrasive material is made up of diamond and inorganic binder;
Described diamond is single-crystal diamond or polycrystalline diamond or combinations thereof thing, the grain graininess of diamond is 0.2 ~ 380 um;
In described sintered combined abrasive material, diamond content is 10% ~ 80%;
Described inorganic binder is by silica, bismuth oxide, boron oxide, cerium oxide, zinc oxide, iron oxide and cupric oxide mixing group Becoming, each composition proportioning by mass percentage is as follows:
Silica 20% ~ 50%
Bismuth oxide 10% ~ 20%
Boron oxide 4% ~ 8%
Cerium oxide 5% ~ 8%
Zinc oxide 3% ~ 9%
Iron oxide 1% ~ 3%
Cupric oxide 10% ~ 15%.
2. the preparation method of an abrasive composite, it is characterised in that: described preparation method mainly comprises the steps that
First: prepare sintered combined abrasive material
(1) dispensing: weigh raw material by this weight ratio and mix with mixer, diamond 8% ~ 50%, inorganic binder 15% ~ 60%, deionized water 30% ~ 50%;
(2) baking material: the slurry stirred is poured into and dries in heating platen surface, it is thus achieved that blank;
(3) sintering: blank is loaded in crucible, be placed in vacuum drying oven, be evacuated to 20 ~ 2Pa, be warming up to 500 ~ 1000oC protects Temperature 1 ~ 8 hour, insulation naturally cools to room temperature after terminating, it is thus achieved that sintering feed;
(4) powder crushes: sintering feed powder crusher crushed, and by varigrained sintered combined abrasive material sieving and grading;
Second: preparation abrasive composite
(1) dispensing: weigh following raw material by this weight ratio and mix with mixer, sintered combined abrasive material 20% ~ 90%, tree Fat 80% ~ 10%;
(2) compound is filled to mould inner pressure in fact, be placed in 25 ~ 100oHeat cure shaping in C baking oven, it is thus achieved that abrasive composite.
A kind of abrasive composite the most according to claim 1 and 2, it is characterised in that: described sintered combined abrasive grain is 1 ~2000 um。
A kind of abrasive composite the most according to claim 1 and 2, it is characterised in that: described single sintered combined abrasive material The particle diameter of grain is 2 times or more than 2 times of single diamond particles particle diameter.
A kind of abrasive composite the most according to claim 1 and 2, it is characterised in that: described resin is polyurethane resin, phenol Urea formaldehyde, acrylic resin, the one in epoxy resin or combinations thereof.
CN201610381173.1A 2016-06-01 2016-06-01 Grinding composite body and preparation method thereof CN105856089A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105368398A (en) * 2015-12-28 2016-03-02 祝世连 Novel diamond abrasive material for LED sapphire substrate processing and preparation method of novel diamond abrasive material
CN106938446A (en) * 2017-04-14 2017-07-11 龙口东润砂轮有限公司 Polyurethane emery wheel
CN107457713A (en) * 2017-10-19 2017-12-12 柳州凯通新材料科技有限公司 A kind of skive material
CN107488439A (en) * 2017-09-30 2017-12-19 南京航空航天大学 A kind of grinding and polishing glass abrasive compound and preparation method thereof
CN110016322A (en) * 2019-05-09 2019-07-16 东莞市中微纳米科技有限公司 Micron order magnetic coupling abrasive material and water-base magnetic rheology polishing liquid
CN110628385A (en) * 2019-10-24 2019-12-31 清远市简一陶瓷有限公司 Composite diamond particles for magnetorheological polishing and preparation method thereof

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CN103753411A (en) * 2014-01-08 2014-04-30 袁德禄 Ceramic and resin composite grinding wheel
CN105538177A (en) * 2015-12-09 2016-05-04 河南广度超硬材料有限公司 Composite binder grinding wheel and manufacturing method thereof

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CN105538177A (en) * 2015-12-09 2016-05-04 河南广度超硬材料有限公司 Composite binder grinding wheel and manufacturing method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105368398A (en) * 2015-12-28 2016-03-02 祝世连 Novel diamond abrasive material for LED sapphire substrate processing and preparation method of novel diamond abrasive material
CN106938446A (en) * 2017-04-14 2017-07-11 龙口东润砂轮有限公司 Polyurethane emery wheel
CN107488439A (en) * 2017-09-30 2017-12-19 南京航空航天大学 A kind of grinding and polishing glass abrasive compound and preparation method thereof
CN107457713A (en) * 2017-10-19 2017-12-12 柳州凯通新材料科技有限公司 A kind of skive material
CN110016322A (en) * 2019-05-09 2019-07-16 东莞市中微纳米科技有限公司 Micron order magnetic coupling abrasive material and water-base magnetic rheology polishing liquid
CN110628385A (en) * 2019-10-24 2019-12-31 清远市简一陶瓷有限公司 Composite diamond particles for magnetorheological polishing and preparation method thereof

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