Grinding wheel applied to coaxiality grinding of ceramic ferrule and preparation method thereof

A ceramic ferrule and concentricity technology, which is applied in the direction of grinding/polishing equipment, grinding devices, abrasives, etc., can solve the problems of high frequency of thimble breakage, broken wires, high production costs, etc., to ensure the consistency of coaxiality , avoid broken needle or thread, increase the effect of contact area

Active Publication Date: 2018-02-23
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are three problems in the process of processing: 1. In the process of mass production, the surface finish of the outer circle cannot reach Ra0.1
2. The coaxiality of the outer circle is greater than 1 μm; 3. For single-grain grinding, the frequency of thimble breakage is relatively high, and the needle will break after grinding about 400 ferrules; for threading grinding, the phenomenon of wire breakage is serious, about 10 -13 groups of ferrules, the

Method used

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  • Grinding wheel applied to coaxiality grinding of ceramic ferrule and preparation method thereof
  • Grinding wheel applied to coaxiality grinding of ceramic ferrule and preparation method thereof
  • Grinding wheel applied to coaxiality grinding of ceramic ferrule and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] A preparation method for a grinding wheel applied to ceramic ferrule coaxiality grinding, comprising the steps of:

[0043] (1) Add the diluted modified phenolic resin solution, zirconia hollow microspheres and calcium fluoride to ethyl acetate at a mass ratio of 1:20:30, and the mass of ethyl acetate is the diluted modified phenolic resin solution , 5 times the total weight of zirconia hollow microspheres and calcium fluoride, stirred in a water bath at 50°C for 3 hours, and added 45wt% sodium chloride solution (the amount of sodium chloride solution was diluted modified phenolic 5 times the total weight of the resin solution, zirconia hollow microspheres and calcium fluoride), heated at 80°C for 60 minutes to obtain a dry block mixture, according to the mass ratio of block mixture and modified polyimide resin 1:2 Add modified polyimide resin, ball mill, and pass through a 100-mesh sieve to obtain a binder, wherein the diluted modified phenolic resin solution refers to a...

Embodiment 2

[0048] A preparation method for a grinding wheel applied to ceramic ferrule coaxiality grinding, comprising the steps of:

[0049] (1) Add the diluted modified phenolic resin solution, zirconia hollow microspheres and calcium fluoride to ethyl acetate at a mass ratio of 1:20:30, and the mass of ethyl acetate is the diluted modified phenolic resin solution , 3 times the total weight of zirconia hollow microspheres and calcium fluoride, stirred in a 90°C water bath for 1 hour, and added 50wt% sodium chloride solution (the amount of sodium chloride solution was diluted modified phenolic 8 times the total weight of the resin solution, zirconia hollow microspheres and calcium fluoride), heated in a water bath at 75°C for 90 minutes to obtain a block mixture, and added according to the mass ratio of block mixture and modified polyimide resin 1:1.5 Modified polyimide resin, ball milled, passed through a 1200-mesh screen to obtain a binder, wherein the diluted modified phenolic resin ...

Embodiment 3

[0054] A preparation method for a grinding wheel applied to ceramic ferrule coaxiality grinding, comprising the steps of:

[0055] (1) Add the diluted modified phenolic resin solution, zirconia hollow microspheres and calcium fluoride to the mass fraction of ethyl acetate at a mass ratio of 1:18:32 (the mass of ethyl acetate is the diluted modified phenolic resin 8 times the total weight of the resin solution, zirconia hollow microspheres and calcium fluoride), stirred in a water bath at 70°C for 2 hours, and added 40wt% sodium chloride solution (the amount of sodium chloride solution was diluted The modified phenolic resin solution, zirconia hollow microspheres and calcium fluoride are twice the total weight)), heated in a water bath at 85°C for 45 minutes to obtain a dry block mixture, according to block mixture and modified polyimide The resin mass ratio is 1:2, adding modified polyimide resin, ball milling, and passing through a 100-mesh screen to obtain a binder, wherein ...

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Abstract

The invention relates to a preparation method of a grinding wheel applied to coaxiality grinding of a ceramic ferrule, and belongs to the technical field of ultra-precision machining of optical fiberconnecting material. The u preparation method comprises the following steps of 1, a diluted modified phenolic resin solution, a zirconium oxide hollow microsphere and calcium fluoride are added into ethyl acetate, and are stirred for 1 -3 hours at the temperature of 50-90 DEG C a sodium chloride solution is added, a mixture is heated for 45-90 minutes for at the temperature of 75-85 DEG C, a blockmixture is obtained, then modified polyimide resin is added, ball milling is carried out, and sieving is carried out to obtain a binding agent; 2, diamond and the binding agent prepared in the step 1are weighted according to the mass ratio of 1 to 3-8, sieving is carried out, pressing is carried out at the temperature of 280 DEG C with the pressure of 5 MPa to 15 MPa, the pressure maintaining time is 30-80 minutes, so that a grinding layer is obtained; 3, the grinding layer is bonded to fluorosilicone rubber, the fluorosilicone rubber is adhered to a grinding wheel base body to obtain a grinding wheel semi-finished product; and 4, feeding hole and the discharging hole chamfering of the semi-finished grinding wheel is carried out to obtain a finished product.

Description

technical field [0001] The invention belongs to the field of ultra-precision processing of optical fiber connection materials, and in particular relates to a grinding wheel used for coaxiality grinding of ceramic ferrules and a preparation method thereof. Background technique [0002] The ceramic ferrule is a high-precision cylindrical special zirconia ceramic element that is precisely centered in the fiber optic connector plug. It has high hardness and high melting point, and it is difficult to grind. The coaxiality of the outer circle and the smoothness of the outer surface of this kind of workpiece are extremely high, so as to meet the fixing requirements of the optical fiber and meet the assembly requirements for production and use. It is generally required that the outer round finish Ra<0.1μm, and the coaxiality requirement ≤1μm. [0003] At present, the grinding wheel for processing the outer circular coaxiality is mainly a vitrified bond diamond abrasive grinding ...

Claims

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Application Information

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IPC IPC(8): B24D18/00B24D3/02B24D3/34
CPCB24D3/02B24D3/342B24D18/0009B24D18/0072
Inventor 叶腾飞曹剑锋
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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