CN105437090B - A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices and preparation method - Google Patents

A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices and preparation method Download PDF

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Publication number
CN105437090B
CN105437090B CN201510814021.1A CN201510814021A CN105437090B CN 105437090 B CN105437090 B CN 105437090B CN 201510814021 A CN201510814021 A CN 201510814021A CN 105437090 B CN105437090 B CN 105437090B
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China
Prior art keywords
verticality
ultra
thin resin
monolithic devices
superelevation
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CN105437090A (en
Inventor
杜晓旭
陈锋
肖峰
李大水
王思亮
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Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
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Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels

Abstract

The present invention relates to a kind of superelevation to cut the ultra-thin resin wheel of verticality monolithic devices, including following parts by volume raw materials：10-25 parts of abrasive material, 40-50 parts of resinoid bond, 10-40 parts of filler；The filler is the chopped strand being made of carbon fiber and/or glass fibre, wherein, 5-20 microns of chopped strand diameter, 50-500 microns of length, the draw ratio of chopped strand is 10-100：1.Compared with the ultra-thin resin wheel of monolithic devices that conventional filler makes, the ultra-thin resin wheel cutting verticality of monolithic devices of the present invention significantly improves, joint-cutting can be reduced at least about 0.01mm, cut verticality increase rate at least about 28.6%, and grinding wheel is not easy breaking, it is preferable to cut workpiece cun method, cutting quality substantially improves.

Description

A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices and preparation method
Technical field
The invention belongs to grinding materials and grinding tool manufacturing technology fields, and in particular to a kind of superelevation cuts the ultra-thin tree of verticality monolithic devices Fat grinding wheel and preparation method thereof.
Background technology
The ultra-thin resin wheel thickness of monolithic devices is generally in 0.06 mm ~ 0.5mm, no matrix, and structure is as shown in Figure 1.Such Grinding wheel is primarily adapted for use in high-accuracy cut-out and the fluting of optical glass, ceramics, semiconductor sealing material.Such grinding wheel has good Self-sharpening, cutting high efficiency, cutting good quality the advantages that, be realize it is efficient, energy saving, high-precision and automation cutting processing can not Or scarce tool.Although the ultra-thin resin wheel of monolithic devices has higher cutting verticality, cutting verticality is further improved, Still play an important roll to the raising of such grinding wheel performance.The advantages of ultra-thin resin wheel cutting verticality of monolithic devices improves table Now：1）Wheel strength is high, rigidity is good, not easy to break；2）Workpiece joint-cutting is small, saves Material Processing；3）Reduce grinding wheel side Abrasion preferably ensures that workpiece cun method is consistent；4）Cutting workpiece quality significantly improves.
CN102699834A discloses a kind of tencel reinforced resin grinding wheel, is by the embedded in glass fibre in grinding wheel Dimension enhancing mesh sheet.CN104669131A discloses a kind of calcium sulfate crystal whiskers reinforced resin grinding wheel and preparation method thereof, in addition to It is embedded to outside carbon fiber or glass fiber reinforcement mesh sheet in grinding wheel wheel, has additionally incorporated sour calcium pyroborate as fibrous monocrystal, diameter 1 ~4 μm, 20~80 μm of length.Both the above fiber reinforcement grinding wheel, although be respectively provided with higher impact resistance, safe speed and The advantages that grinding efficiency is high, but there is no relevant research, and for ultra-thin resin wheel, fiber mat for cutting verticality Thickness is thicker, is not suitable for ultra-thin resin wheel.
Invention content
Present invention aims to overcome that prior art defect, provides a kind of superelevation cutting ultra-thin resin sand of verticality monolithic devices Wheel and preparation method.The emery wheel cuts beat is small, and cutting verticality is high, consistent so as to ensure to cut workpiece cun method, improves and cuts Cut quality；Further, since grinding wheel beat reduces, grinding wheel is not easy breaking in use.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices, including following parts by volume raw materials：Abrasive material 10-25 Part, 40-50 parts of resinoid bond, 10-40 parts of filler；
The filler is the chopped strand being made of carbon fiber and/or glass fibre, wherein, chopped strand diameter 5-20 Micron, 50-500 microns of length, the draw ratio of chopped strand is 10-100：1.
Specifically, the abrasive material is diamond or cubic boron nitride, abrasive grain ranging from 2000#-100#；The tree Fat bonding agent is phenolic resin or polyimide resin.
The above-mentioned superelevation cutting ultra-thin resin wheel of verticality monolithic devices, further includes graphite, and graphite and abrasive material, resin knot Mixture, filler the sum of volume be 100 parts.
The preparation method of the above-mentioned superelevation cutting ultra-thin resin wheel of verticality monolithic devices, includes the following steps：
1）Each raw material is weighed in proportion, is uniformly mixed；
2）Molding：By step 1）Gained batch mixing is put into hot-forming acquisition grinding wheel blank in mold；Hot pressing temperature 180- 210 DEG C, hot pressing time 10-20min, hot pressing pressure 5-15MPa；
3）By step 2）Gained grinding wheel blank by design hardening curve hardening, most processed afterwards through end face, inside and outside circle processing, After putting the first edge on a knife or a pair of scissors, storage is examined；
The hardening curve is：100 DEG C are risen to from room temperature within 0.5 hour, 100 DEG C keep the temperature 0.5 hour, then heat up within 1 hour To 180-210 DEG C and 6 hours are kept the temperature, 50 DEG C is finally naturally cooling to, comes out of the stove.
Compared to the prior art, beneficial effects of the present invention：
Carbon fiber and glass fibre have many advantages, such as that axial strength is high, modulus is big in itself, and carbon fiber and glass fibre are in sand 3D straggly microcosmic reticular structures in space can be formed in tire body, grinding wheel rigidity is remarkably improved, is effectively reduced ultra-thin resin Beat amplitude under grinding wheel high speed rotation, so as to significantly improve the cutting verticality of the ultra-thin resin wheel of monolithic devices.It is filled out with tradition The ultra-thin resin wheel of monolithic devices that material makes is compared, and the ultra-thin resin wheel cutting verticality of monolithic devices of the present invention significantly improves, and cuts Seam can be reduced at least about 0.01mm, cutting verticality increase rate at least about 28.6%, and grinding wheel is not easy breaking, cutter Part cun method is preferable, and cutting quality substantially improves.
Description of the drawings
Fig. 1 is the structure diagram of the ultra-thin resin wheel of existing monolithic devices；
Fig. 2 be the ultra-thin resin wheel of monolithic devices of the present invention section and side SEM scheme, it can be seen from the figure that carbon fiber and The microcosmic reticular structures of 3D that glass fibre is formed in grinding wheel carcass.
Specific embodiment
Technical scheme of the present invention is further discussed in detail with reference to embodiments, but protection scope of the present invention It is not limited thereto.
In following embodiments, room temperature refers to 25 ± 1 DEG C.
Embodiment 1
A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices, is made of following percent by volume raw materials：2000# Diamond 20%, phenolic resin 50%, carbon fiber 15%（10 microns of diameter, 200 microns of length, draw ratio 20:1）And glass fibre 15%（10 microns of diameter, 200 microns of length, draw ratio 20:1）.
The preparation method of the above-mentioned superelevation cutting ultra-thin resin wheel of verticality monolithic devices, includes the following steps：
1）Each raw material is weighed in proportion, is uniformly mixed；
2）Molding：By step 1）Gained batch mixing is put into hot-forming acquisition grinding wheel blank in mold；200 DEG C of hot pressing temperature, Hot pressing time 15min, hot pressing pressure 10MPa；
3）By step 2）Gained grinding wheel blank by design hardening curve hardening, most processed afterwards through end face, inside and outside circle processing, After putting the first edge on a knife or a pair of scissors, storage is examined, makes and obtains the ultra-thin resin wheel of monolithic devices that specification is 56mm × 0.2mm × 40mm；
The hardening curve is：100 DEG C are risen to from room temperature within 0.5 hour, 100 DEG C keep the temperature 0.5 hour, then heat up within 1 hour To 200 DEG C and 6 hours are kept the temperature, 50 DEG C is finally naturally cooling to, comes out of the stove.
Embodiment 2
A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices, is made of following percent by volume raw materials：200# Diamond 25%, phenolic resin 40%, carbon fiber 10%（10 microns of diameter, 400 microns of length, draw ratio 40:1）And glass fibre 15%（10 microns of diameter, 400 microns of length, draw ratio 40:1）, graphite 10%.
The preparation method of the above-mentioned superelevation cutting ultra-thin resin wheel of verticality monolithic devices is with reference to embodiment 1.
Embodiment 3
A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices, is made of following percent by volume raw materials：1000# Cubic boron nitride 10%, polyimide resin 45%, carbon fiber 20%（5 microns of diameter, 300 microns of length, draw ratio 60:1）And glass Glass fiber 20%（5 microns of diameter, 300 microns of length, draw ratio 60:1）, graphite 5%.
The preparation method of the above-mentioned superelevation cutting ultra-thin resin wheel of verticality monolithic devices is with reference to embodiment 1.
Comparative example 1：
A kind of ultra-thin resin wheel of monolithic devices, raw material composition are as follows：2000# diamonds 20vol%, phenolic resin 50vol%, silicon carbide（Granularity W7）15 vol %, 15 vol % of graphite.Manufacture craft with reference to embodiment 1, making obtain 56mm × The ultra-thin resin wheel of monolithic devices of 0.2mm × 40mm.
The ultra-thin resin wheel Rockwell hardness HRB of monolithic devices obtained by above-described embodiment 1 to 3 and comparative example is 50.
By above-described embodiment 1 to 3 and the 1 ultra-thin resin wheel of gained monolithic devices of comparative example in DISCO321 Full-automatic cutting machines Upper cutting 0.5mm optical glass, cutting technique parameter：Speed of mainshaft 2000rpm, cutting speed 5mm/s.Cutting result is as follows：
Embodiment 1：Joint-cutting is 0.215mm, verticality 0.015；
Embodiment 2：Joint-cutting is 0.220mm, verticality 0.020;
Embodiment 3：Joint-cutting is 0.225mm, verticality 0.025
Comparative example 1：Joint-cutting is 0.235mm, verticality 0.035.
By the above results it can be seen that：It is compared with comparative example 1, the joint-cutting minimum 0.215mm of the embodiment of the present invention 1, vertically It is 0.015 to spend, increase rate 57%, and verticality greatly improves the beat that can reduce under grinding wheel high speed rotation, improves cutting product Matter saves Material Processing.
The computational methods of verticality：（Width of slit-blade thickness）, verticality numerical value is smaller, and verticality is better.

Claims (4)

1. a kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices, which is characterized in that including following parts by volume raw materials：Abrasive material 10-25 parts, 40-50 parts of resinoid bond, 10-40 parts of filler；
The filler is the chopped strand being made of carbon fiber and/or glass fibre, wherein, 5-20 microns of chopped strand diameter, 50-500 microns of length, the draw ratio of chopped strand is 10-100：1.
2. superelevation as described in claim 1 cuts the ultra-thin resin wheel of verticality monolithic devices, which is characterized in that the abrasive material is Diamond or cubic boron nitride, abrasive grain ranging from 2000#-100#；The resinoid bond is sub- for phenolic resin or polyamides Polyimide resin.
3. superelevation as described in claim 1 cuts the ultra-thin resin wheel of verticality monolithic devices, which is characterized in that further includes stone Ink, and graphite and abrasive material, resinoid bond, filler the sum of volume be 100 parts.
4. the preparation method of any superelevation cutting ultra-thin resin wheel of verticality monolithic devices of claims 1 to 3, feature exist In including the following steps：
1）Each raw material is weighed in proportion, is uniformly mixed；
2）Molding：By step 1）Gained batch mixing is put into hot-forming acquisition grinding wheel blank in mold；180-210 DEG C of hot pressing temperature, Hot pressing time 10-20min, hot pressing pressure 5-15MPa；
3）By step 2）Gained grinding wheel blank is most processed afterwards through end face, inside and outside circle processing, is put the first edge on a knife or a pair of scissors by the hardening curve hardening of design Afterwards, storage is examined；
The hardening curve is：100 DEG C are risen to from room temperature within 0.5 hour, 100 DEG C keep the temperature 0.5 hour, are then warming up within 1 hour 180-210 DEG C and keep the temperature 6 hours, be finally naturally cooling to 50 DEG C, come out of the stove.
CN201510814021.1A 2015-11-23 2015-11-23 A kind of superelevation cuts the ultra-thin resin wheel of verticality monolithic devices and preparation method Active CN105437090B (en)

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CN105965907A (en) * 2016-05-13 2016-09-28 高昊 Method for manufacturing glass fiber net covers
CN105834924A (en) * 2016-05-30 2016-08-10 安徽砥钻砂轮有限公司 High-speed heavy-load resin cutting sand wheel and preparation method thereof
CN106891276A (en) * 2017-04-18 2017-06-27 江西联洲研磨科技有限公司 A kind of powder fiber reinforced resin emery wheel and preparation method thereof
CN107598791A (en) * 2017-11-08 2018-01-19 苏州刘爱英科技信息咨询有限公司 A kind of manufacture method of carbon fiber skive
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CN110000717A (en) * 2019-03-14 2019-07-12 浙江亚孙砂轮有限公司 Multifunctional fibre reinforced resin abrasive cut-off wheel and its manufacturing process
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