Preparation method of ground section

Abstract

A method for preparing a grinding disc is characterized in that the method includes the following method: a. placing a basal disc in a pressing plate mould; b. coating a second gluing surface of the basal disc and a first gluing surface of the pressing plate mould with an adhesive; c. pasting carborundum discs flatly and smoothly to the corresponding positions of the basal disc and the pressing plate mould coated with the adhesive, and compacting; d. compacting the pressing plate mould so as to hold the original adhesive state of the carborundum discs, then solidifying for molding, and demoulding. Compared with prior art, the method has the advantages of low equipment requirement, easy operation, practicability and convenience; the entire preparation flow has less work procedure and higher efficiency; and the prepared product has stable quality, firm carborundum disc adhesion and high integrity; since the adhesive is pasted only on the part back of the carborundum disc, the product has high utilization ratio and wear resistance; a slicing machine is adopted to carry out cutting and pressing, therefore, the method is convenient, rapid and laborsaving.

Description

technical field [0001] The invention relates to a preparation method of a grinding sheet, which is suitable for grinding or polishing metal and non-metal surfaces. Background technique [0002] At present, the common grinding plate structure includes a base plate and a sand plate glued to the periphery of the base plate. The preparation method generally includes the following steps in sequence: [0003] a. Punch the sand flakes into small pieces and put them into the box in a certain order to make the sand flakes as a whole; [0004] b. Push the sand flakes into the mold with grids as a whole, and put the sand flakes into the corresponding grids; [0005] c. Apply glue to the surface of the tray; d. Take the aforementioned tray and press it into a mold with sand chips; [0006] e. Demoulding. After demoulding, string the screw into the screw rod, dry it after fixing, and obtain the required grinding disc. [0007] This preparation has the following weak points: [0008]...

AI Technical Summary

Problems solved by technology

[0008] First, it is easy to disperse and lose. After the sand flakes are punched into small pieces, they must be arranged so that they can be accurately pushed into the grid of the mold. The sand flakes are small and difficult to tidy. easy to miss;

[0009]Secondly, product quality is difficult to guarantee and work efficiency is low. Punching, unscrambling, inserting, gluing, and threading are all manual operations. There are errors, and the product quality is uneven, which is difficult to guarantee;

[0010]Third, the work efficiency is low, the whole preparation work is still in the family workshop mode, the large-scale production is limited, and it is difficult to meet the needs of modern production;

[0011]Fourth, the fastness is not enough, the glue is only applied on one side of the tray, and there is little glue seepage between the sand sheets, resulting in insufficient glue viscosity, and easy to fly during use ,There are security risks;

[0012]Fifth, the sand sheet is easy to shift, and the product is inserted after demoulding, so it is easy to shift during drying, which affects the integrity

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