CN107717765B - A kind of grinding wheel and preparation method thereof applied to the grinding of ceramic insertion core concentricity - Google Patents
A kind of grinding wheel and preparation method thereof applied to the grinding of ceramic insertion core concentricity Download PDFInfo
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- CN107717765B CN107717765B CN201711070211.2A CN201711070211A CN107717765B CN 107717765 B CN107717765 B CN 107717765B CN 201711070211 A CN201711070211 A CN 201711070211A CN 107717765 B CN107717765 B CN 107717765B
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- 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
- B24D18/0072—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A kind of preparation method of the grinding wheel applied to the grinding of ceramic insertion core concentricity, belong to optical fiber connecting material Ultraprecision Machining field and includes the following steps: that (1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride after dilution are added in ethyl acetate, 50 DEG C -90 DEG C of stirrings 1-3 hours, sodium chloride solution is added, 75-85 DEG C of heating 45-90nin obtains block mixture, and modified polyimide resin is added, ball milling, sieving obtain bonding agent；(2) bonding agent obtained by diamond and step (1) is weighed according to mass ratio for the ratio of 1:(3-8), sieving is suppressed in 280 DEG C -360 DEG C, 5MPa-15MPa, and the dwell time is 30-80 minutes, obtains grinding layer；(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel semi-finished product；(4) the inlet port and outlet port of grinding wheel semi-finished product carry out chamfering to get.
Description
Technical field
The invention belongs to optical fiber connecting material Ultra-precision Turning fields, and in particular to one kind is applied to ceramic insertion core concentricity
Grinding wheel of grinding and preparation method thereof.
Background technique
Ceramic insertion core is that a kind of high accuracy circular cylinder special type zirconia ceramics of precise centering in optical fiber connector plug is former
Part, hardness is high, and fusing point is high, and grinding difficulty is larger.The outer circles and outer surface smoothness requirements of such workpiece are high,
It is just able to satisfy the fixation of optical fiber, meets the matching requirements of production and application.0.1 μm of < of outer circle finish Ra generally is required, concentricity
It is required that≤1 μm.
It is mainly at present ceramic bond diamond abrasive grinding wheel for the grinding wheel of this outer circles processing.But adding
There are problems that following three during work: one, Ra0.1 is not achieved in outer round surface finish part in batch production process.Two, outer
1 μm of circle concentricity >；Three, single-grain grinding is processed, the thimble fracture frequency is higher, about grinds 400 lock pins with regard to broken needle；For
Grinding is threaded, broken string phenomenon is serious, about grinding 10-13 group lock pin, just will appear broken string.Problem above not only influences product
Quality, and cause production cost higher, production efficiency is lower.
Technique of Vitrified Diamond Wheels intensity is high, resistance to grinding heat, long service life, but is being ground hard and crisp oxidation
, but can be higher due to matching hardness when zircon ceramic lock pin, and cause the self-sharpening of grinding wheel bad, it is easy to appear above-mentioned three spoken of
A problem.
Summary of the invention
The present invention is directed to the hardness of ceramic insertion core material, intensity, and requires to meet ceramic insertion core concentricity, invention
A kind of grinding wheel applied to the grinding of ceramic insertion core concentricity, the grinding wheel are resin anchoring agent diamond grinding wheel, and self-sharpening is good, grinding
It is sharp, final abrasive product finish ra < 0.08, be ground out lock pin concentricity reach 0.3 μm hereinafter, and grinding wheel using
Cheng Zhong, no matter take single-grain grinding or threading grinding, all will not broken needle broken string, be finally reached and meet the same of quality requirement
When, production efficiency is improved, processing cost is reduced.The present invention also provides a kind of sand applied to the grinding of ceramic insertion core concentricity simultaneously
The preparation method of wheel.
Based on above-mentioned purpose, the present invention is adopted the following technical scheme that:
(1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride after dilution are added in ethyl acetate, 50
DEG C -90 DEG C stirring 1-3 hours, sodium chloride solution is added, 75-85 DEG C of heating 45-90nin obtains block mixture, and modification is added
Polyimide resin, ball milling, sieving obtain bonding agent；
(2) bonding agent obtained by diamond and step (1) is weighed according to mass ratio for the ratio of 1:(3-8), sieving,
It is suppressed in 280 DEG C -360 DEG C, 5MPa-15MPa, the dwell time is 30-80 minutes, obtains grinding layer；
(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel half at
Product；
(4) the inlet port and outlet port of grinding wheel semi-finished product carry out chamfering to get.
Preferably, the phenol-formaldehyde resin modified liquid in the step (1) after dilution, zirconia hollow microsphere, the matter of calcirm-fluoride
Amount is than being 1:(18 ~ 22): (28 ~ 32), the weight of modified polyimide resin are the 1.5-2 of the block mixture weight after drying
Times
Preferably, the phenol-formaldehyde resin modified liquid after diluting described in the step (1) refers to changing according to 1:20 mass ratio
Property the dilution that carries out of phenolic resin and cresols, the concentration of the sodium chloride solution is 40-50wt%, sodium chloride solution plus
Entering amount is phenol-formaldehyde resin modified liquid after dilution, 2 ~ 8 times of zirconia hollow microsphere and calcirm-fluoride gross weight.
Preferably, zirconia hollow microsphere partial size is 50 μm -65 μm, and ball wall is broken with a thickness of 5 μm -9 μm；Calcirm-fluoride is point
It analyses pure, it is desirable that median particle diameter D50 is 60 μm, and D95 is no more than 100 μm；The partial size of modified polyimide resin powder is 24 μm of -48 μ
m。
Diamond is nickel plating diamond in the step (2) and granularity is -1500 mesh of 100 mesh.
The above-mentioned preparation method grinding wheel obtained applied to the grinding of ceramic insertion core concentricity.
The grinding wheel is followed successively by grinding wheel base body, transition zone and grinding layer from inside to outside, and grinding layer ring width is 5-25mm, transition
Layer is fluorine silicone rubber, and the width of fluorine silicone rubber is 5-25mm, and grinding wheel base body is stainless steel base, and grinding wheel overall thickness is 25-
100mm, grinding wheel diameter 75-250mm.
It is a kind of applied to ceramic insertion core concentricity grinding grinding wheel include grinding wheel base body, transition zone and grinding layer, the sand
Wheel matrix is stainless steel base；Transition zone is fluorine silicone rubber, and grinding layer is made of abrasive material, bonding agent；Abrasive material is diamond, in conjunction with
Agent is modified polyimide resin powder, phenol-formaldehyde resin modified liquid, composite ceramics microballoon pore creating material, calcirm-fluoride pore creating material etc..It is described
Abrasive material, bonding agent by mixing sieving, hot-forming at the grinding layer with ablation, carried out with grinding wheel transition zone it is be bonded,
Form the grinding wheel for being applied to the grinding of this ceramic insertion core concentricity.
Grinding wheel base body of the present invention is stainless steel base.This material has good hardness and strength, makes in high revolving speed
It in the process, is unlikely to deform, can guarantee good machining accuracy, be easy to carry out turnery processing, it can be according to mating grinding machine need
It asks, is processed into different shapes.For grinding wheel base body, the non-corrosive in the case where there is grinding fluid grinding.
Abrasive diamond abrasive material of the present invention, according to the grinding allowance of workpiece, diamond grit range can be chosen most
Thick 100 mesh, most thin 1500 mesh and median particle size range.
Modified polyimide resin powder of the present invention, particle size range are 24 μm -48 μm.
Functional stuffing of the present invention is zirconia hollow microsphere, and partial size is 50 μm -65 μm.Ball wall fracture with a thickness of 5 μm-
9μm.Calcirm-fluoride is that analysis is pure, it is desirable that median particle diameter D50 is 60 μm.D95 is no more than 100 μm.
Original creation part of the invention is, according to the hardness of ceramic lock pin based on zirconium oxide, density, concentricity requires etc., specially
Devise the grinding wheel structure that can reach this requirement, grinding wheel formula and emery wheel making technique, especially in conjunction with the manufacturing process of agent,
To be initiated in industry.Transition zone selects fluorine silicone rubber, not only has excellent high temperature resistance, but also have good cementability
Can, the elasticity having matches the grinding force with grinding wheel layer in grinding well, can be according to grinding force size, phase occurs for elasticity
It should change, suitability is fine, thus while guaranteeing sharp grinding, and can make that there is certain elasticity when wheel grinding, it is not easy
Broken needle broken string, finally obtains the grinding wheel that can be used in the grinding of ceramic insertion core concentricity.
Beneficial effects of the present invention:
The manufacture of bonding agent of the present invention, using three steps, inorganic material colloid is made in the first step, and second step is made corresponding multiple
Close bonding agent, the method that third step uses ball milling sieving.The selection or manufacture craft no matter this bonding agent is formulated, can
Guarantee that bonding agent is uniformly mixed, calcirm-fluoride and zirconia hollow microsphere pore creating material can reach 90% or more pore-creating effect, can
It improves grinding wheel sharpness and holds bits ability, and in use without finishing.
The high self-sharpening nickel plating diamond that diamond in the present invention is chosen, diamond itself possess the more of similar polycrystal
A corner angle, and have both shape retention and sharpness, it can be good at processing concentricity at 1 μm, smoothness requirements are in Ra0.3
Workpiece below.
Intermediate layer of the present invention uses fluorine silicone rubber, has certain elasticity, while having with corresponding intensity, is being ground
When elastic deformation self can occur to adjust grinding wheel for the grinding force of workpiece according to the hardness of material, can process different big
Small workpiece, while meeting the work pieces process requirement of size surplus, the phenomenon that broken needle or broken string are avoided in grinding.
This grinding wheel is designed using the structure of edge chamfer, can guarantee there is certain buffering when workpiece is fed,
The contact area for increasing charging, can guarantee that lock pin concentricity consistency, concentricity reach 0.3 micron of requirement below, meanwhile,
Also the appearance of broken needle broken string phenomenon is effectively prevented.
Detailed description of the invention
Fig. 1 is the SEM figure of wheel grinding layer made from embodiment 1；The effect of hollow sphere is obvious as can be seen from Figure 1, makes
Increased number of stomata is generated inside grinding layer, there can not only be good heat spreading function in grinding process, and there are enough appearances
It considers space to be worth doing, to prevent grinding wheel obstruction from causing to generate scratch to workpiece surface, can be good at promoting grinding skin finish and table
Face quality.
Fig. 2 is the SEM figure of wheel grinding layer made from embodiment 2；Point of the diamond in bonding agent as can be seen from Figure 2
Cloth is uniform, and is oxidized zirconium tiny balloon around diamond and wraps up well, forms thin-walled after hollow ball fractured, can reduce knot
Mixture intensity makes grinding layer have better self-sharpening, which thereby enhances grinding efficiency and sharpness, final to improve the outer of workpiece
Circle concentricity.
Fig. 3 is the structural schematic diagram of grinding wheel produced by the present invention；
In Fig. 3,1 is grinding wheel base body, and 2 be transition zone, and 3 be grinding layer,
X is grinding layer ring width, and X range is 5-25mm；
α is chamfering degree, and α range is 8 ° -25 °；
Y is transition zone width, and Y range is 5-25mm；
T is grinding wheel overall thickness, T range 25-100mm；
D is grinding wheel diameter, and D range is 75-250mm；
Grinding layer is stone layer；
Transition zone is fluorosilicone rubber layer.
Specific embodiment
Below in conjunction with specific embodiment, further details of the technical solution of the present invention, but protection model of the invention
It encloses and is not limited thereto.
Calcirm-fluoride is that analysis is pure in following embodiments, it is desirable that median particle diameter D50 is 60 μm, and D95 is no more than 100 μm；Mixing
Cresols is ordinary commercial products.Phenol-formaldehyde resin modified is the PF3032 of Shengquan Group Co. Ltd., Jinan's production, flowing length
Degree is 15-50mm, Rockwell hardness 20-40HRB, tensile strength 20-60MPa.Zirconia hollow microsphere is commercial goods, grain
Diameter is 50 μm -65 μm.Ball wall is broken with a thickness of 5 μm -9 μm.Calcirm-fluoride is that analysis is pure, it is desirable that median particle diameter D50 is 60 μm.D95
No more than 100 μm.Modified polyimide resin is the PI001, tensile strength 65- of Qinyang Tian Yi Chemical Co., Ltd. production
85MPa, Rockwell hardness 40-70HRB, partial size are 24 μm -48 μm.Diamond is nickel plating diamond, flies Meng's diamond purchased from Henan
Industrial Co., Ltd.Cresols be the meta position of cresols, contraposition, the three kinds of Cresol Isomeric Compounds in ortho position mixture, be common commercially available
Product.
Embodiment 1
A kind of preparation method of the grinding wheel applied to the grinding of ceramic insertion core concentricity, includes the following steps:
(1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride 1:20:30 in mass ratio after dilution are added
In ethyl acetate, the quality of ethyl acetate is phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride three after dilution
5 times of total weight, 50 DEG C stirred in water bath 3 hours, the sodium chloride solution of 45wt% is added, and (additional amount of sodium chloride solution is
5 times of phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and calcirm-fluoride three's total weight after dilution), 80 DEG C of heating 60min,
Dry block mixture is obtained, it is sub- that modified polyamides is added according to block mixture and 1 ︰ 2 of modified polyimide resin mass ratio
Polyimide resin, ball milling sieve with 100 mesh sieve net and obtain bonding agent, wherein the phenol-formaldehyde resin modified liquid after the dilution refers to according to 1:
The dilution of cresols progress is added into phenol-formaldehyde resin modified for 20 mass ratioes；
(2) ratio for being 1:5 according to mass ratio by bonding agent obtained by diamond and step (1) that granularity is 280 mesh
120 mesh screens are crossed in weighing, are suppressed in 280 DEG C, 10MPa, and the dwell time is 60 minutes, obtains grinding layer；
(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel half at
Product；
(4) unified in order in grinding, guarantee that the concentricity of workpiece and lock pin process continuity and size end to end
Property, as shown in Figure 1, the inlet port and outlet port of grinding wheel semi-finished product are carried out chamfering, chamfering degree α is 8 ° -25 °, and length is
2mm-15mm, the grinding wheel are followed successively by 3 layers of grinding wheel base body 1, transition zone 2 and grinding from inside to outside, and 3 ring width X of grinding layer is 5-
25mm, transition zone 2 are fluorine silicone rubber, and the width Y of fluorine silicone rubber is 5-25mm, and grinding wheel base body 1 is stainless steel base, grinding wheel total thickness
Degree T is 25-100mm, and grinding wheel diameter D is 75-250mm.
Embodiment 2
A kind of preparation method of the grinding wheel applied to the grinding of ceramic insertion core concentricity, includes the following steps:
(1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride 1:20:30 in mass ratio after dilution are added
In ethyl acetate, the quality of ethyl acetate is phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride three after dilution
3 times of total weight, 90 DEG C stirred in water bath 1 hour, the sodium chloride solution of 50wt% is added, and (additional amount of sodium chloride solution is
8 times of phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and calcirm-fluoride three's total weight after dilution), 75 DEG C of heating water baths
90min obtains block mixture, and modified polyamides is added according to block mixture and 1 ︰ 1.5 of modified polyimide resin mass ratio
Imide resin, ball milling, cross 1200 mesh screens obtain bonding agent, wherein the phenol-formaldehyde resin modified liquid after the dilution refer to according to
The dilution of cresols progress is added into phenol-formaldehyde resin modified for 1:20 mass ratio；
(2) ratio for being 1:3 according to mass ratio by bonding agent obtained by diamond and step (1) that granularity is 100 mesh
120 mesh screens are crossed in weighing, are suppressed in 320 DEG C, 15MPa, and the dwell time is 30 minutes, obtains grinding layer；
(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel half at
Product；
(4) unified in order in grinding, guarantee that the concentricity of workpiece and lock pin process continuity and size end to end
Property, as shown in Figure 1, the inlet port and outlet port of grinding wheel semi-finished product are carried out chamfering, chamfering degree α is 8 ° -25 °, and length is
2mm-15mm, the grinding wheel are followed successively by 3 layers of grinding wheel base body 1, transition zone 2 and grinding from inside to outside, and 3 ring width X of grinding layer is 5-
25mm, transition zone 2 are fluorine silicone rubber, and the width Y of fluorine silicone rubber is 5-25mm, and grinding wheel base body 1 is stainless steel base, grinding wheel total thickness
Degree T is 25-100mm, and grinding wheel diameter D is 75-250mm.
Embodiment 3
A kind of preparation method of the grinding wheel applied to the grinding of ceramic insertion core concentricity, includes the following steps:
(1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride 1:18:32 in mass ratio after dilution are added
(quality of ethyl acetate is phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the fluorine after dilution in mass fraction ethyl acetate
Change 8 times of calcium three total weight), 70 DEG C stirred in water bath 2 hours, the sodium chloride solution ((sodium chloride solution of 40wt% is added
Additional amount be phenol-formaldehyde resin modified liquid after dilution, 2 times of zirconia hollow microsphere and calcirm-fluoride three's total weight)), 85
DEG C heating water bath 45min, obtains dry block mixture, according to 1 ︰ of block mixture and modified polyimide resin mass ratio
2 are added modified polyimide resin, and ball milling sieves with 100 mesh sieve net and obtains bonding agent, wherein the modified phenolic resin after the dilution
Rouge liquid refers to the dilution that cresols progress is added into phenol-formaldehyde resin modified according to 1:20 mass ratio；
It (2) is that bonding agent obtained by 100 mesh diamonds and step (1) claims according to the ratio that mass ratio is 1:8 by granularity
Weight crosses 120 mesh screens, suppresses in 360 DEG C, 5MPa, and the dwell time is 80 minutes, obtains grinding layer；
(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel half at
Product；
(4) unified in order in grinding, guarantee that the concentricity of workpiece and lock pin process continuity and size end to end
Property, as shown in figure 3, the inlet port and outlet port of grinding wheel semi-finished product are carried out chamfering, chamfering degree α is 8 ° -25 °, and length is
2mm-15mm, the grinding wheel are followed successively by 3 layers of grinding wheel base body 1, transition zone 2 and grinding from inside to outside, and 3 ring width X of grinding layer is 5-
25mm, transition zone 2 are fluorine silicone rubber, and the width Y of fluorine silicone rubber is 5-25mm, and grinding wheel base body 1 is stainless steel base, grinding wheel total thickness
Degree T is 25-100mm, and grinding wheel diameter D is 75-250mm.
It is tested on single-grain grinding grinding machine with grinding wheel made from embodiment 1, experimental technique parameter and effect are as follows
Shown in table 1, workpiece grinding allowance is 0.3mm as shown in Table 1, and the grinding wheel single depth of cut is 0.003mm, and grinding wheel speed is
2600rpm, under conditions of X-direction is 40.00mm/min, gained grinding wheel can be in a finishing period grinding 180 in embodiment 1
The ceramic insertion core of a diameter 2.0mm is ground final concentricity between 0.010-0.025mm, fully meets and is more than this work
The concentricity industry processing request of part.Wheel grinding effect made from embodiment 2, embodiment 3 and embodiment 1 are identical.
Table 1
It should be noted last that: technical solution of the present invention that the above embodiments are only illustrative and not limiting is any right
The equivalent replacement and do not depart from the modification of spirit and scope of the invention or locally replace that the present invention carries out, should all cover in this hair
Within bright protective scope of the claims.
Claims (7)
1. a kind of preparation method of the grinding wheel applied to the grinding of ceramic insertion core concentricity, which comprises the steps of:
(1) phenol-formaldehyde resin modified liquid, zirconia hollow microsphere and the calcirm-fluoride after dilution are added in ethyl acetate, 50 DEG C-
90 DEG C stirring 1-3 hours, sodium chloride solution is added, 75-85 DEG C of heating 45-90min obtains block mixture, and modified gather is added
Imide resin, ball milling, sieving obtain bonding agent；
(2) bonding agent obtained by diamond and step (1) is weighed according to the ratio that mass ratio is 1:3-8, sieving, 280
DEG C -360 DEG C, 5MPa-15MPa compacting, dwell time are 30-80 minutes, obtain grinding layer；
(3) grinding layer is adhered on fluorine silicone rubber, fluorine silicone rubber is adhered on grinding wheel base body, obtain grinding wheel semi-finished product；
(4) the inlet port and outlet port of grinding wheel semi-finished product carry out chamfering to get.
2. being applied to the preparation method of the grinding wheel of ceramic insertion core concentricity grinding according to claim 1, which is characterized in that institute
State the phenol-formaldehyde resin modified liquid in step (1) after dilution, zirconia hollow microsphere, calcirm-fluoride mass ratio be 1:18 ~ 22:28 ~
32, the weight of modified polyimide resin is 1.5-2 times of the block mixture weight after drying.
3. being applied to the preparation method of the grinding wheel of ceramic insertion core concentricity grinding according to claim 1, which is characterized in that institute
Phenol-formaldehyde resin modified liquid after stating dilution described in step (1) refers to mixed according to the phenol-formaldehyde resin modified and cresols of 1:20 mass ratio
The dilution carried out is closed, the concentration of the sodium chloride solution is 40-50wt%, and the additional amount of sodium chloride solution is the modification after dilution
2 ~ 8 times of liquid phenolic resin, zirconia hollow microsphere and calcirm-fluoride gross weight.
4. being applied to the preparation method of the grinding wheel of ceramic insertion core concentricity grinding according to claim 2, which is characterized in that oxygen
Changing zirconium tiny balloon partial size is 50 μm -65 μm, and ball wall is broken with a thickness of 5 μm -9 μm；Calcirm-fluoride is that analysis is pure, it is desirable that median particle diameter
D50 is 60 μm, and D95 is no more than 100 μm；The partial size of modified polyimide resin powder is 24 μm -48 μm.
5. being applied to the preparation method of the grinding wheel of ceramic insertion core concentricity grinding according to claim 1, which is characterized in that institute
State that diamond in step (2) is nickel plating diamond and granularity is -1500 mesh of 100 mesh.
6. utilizing the grinding wheel for being applied to the grinding of ceramic insertion core concentricity made from any preparation method of claim 1 to 5.
7. it is according to claim 6 applied to ceramic insertion core concentricity grinding grinding wheel, which is characterized in that the grinding wheel by
Interior to be followed successively by grinding wheel base body, transition zone and grinding layer to outer, grinding layer ring width is 5-25mm, and transition zone is fluorine silicone rubber, fluorine silicon
The width of rubber is 5-25mm, and grinding wheel base body is stainless steel base, and grinding wheel overall thickness is 25-100mm, grinding wheel diameter 75-
250mm。
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| CN108747877B (en) * | 2018-06-15 | 2022-06-14 | 江苏赛扬精工科技有限责任公司 | Self-sharpening hard alloy cutter polishing grinding wheel and preparation method thereof |
| CN109015425B (en) * | 2018-06-26 | 2019-12-20 | 郑州磨料磨具磨削研究所有限公司 | Resin binder grinding wheel and preparation method thereof |
| CN113414643A (en) * | 2021-06-19 | 2021-09-21 | 贵州航箭电子产品有限公司 | Grinding method of rectangular electric connector |
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| CN201371422Y (en) * | 2008-09-17 | 2009-12-30 | 桂林矿产地质研究院 | Diamond grinding wheel and grinding equipment using same |
| CN101693356A (en) * | 2009-07-24 | 2010-04-14 | 扬中市江南砂布有限公司 | High-efficiency extra strength alloy steel moderate grinding abrasive band and detection method thereof |
| CN102501186A (en) * | 2011-11-02 | 2012-06-20 | 广东奔朗新材料股份有限公司 | Wear-resistant diamond polishing grinder and production method thereof |
| CN105598833A (en) * | 2015-12-31 | 2016-05-25 | 厉志安 | Novel disc type flexible grinding wheel machining tool |
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