SU963842A2 - Endless diamond-abrasive saw - Google Patents

Description

The invention relates to the production of diamond abrasive belt tools and can be applied to the processing of single-crystal, polycrystalline semiconductor and dielectric materials.

Known infinite diamond abrasive saw, for cutting silicon ingots, gallium arsenide, sapphire and other materials 1}

This saw is a core in the form of coils, arranged parallel to J3pyr to a friend and interconnected by means of fastenings of a kits element on which diamond abrasive elements are fastened.

When using a saw on a belt grinding machine, when irregular tensile forces act on the coils for a long time, an uneven elongation of the coils occurs, as a result of which the saw loses stability, its performance decreases, and it goes prematurely out of order. At the same time, a saw is seen moving away from the driving pulley and the separation of turns, since the strength of fixing the turns with the aid of individual elements is insufficient.

The purpose of the additional invention is to improve the performance and durability of a diamond diamond abrasive endless tool.

This goal is achieved by the fact that in the well-known tool the basis of the add. is coated on the outside with a plastic material, and on the inside with an elastic material.

ten

Metal, for example, nickel, is used as a plastic material, and phenolic rubber based glue is used as an elastic material.

15

As a result of the reinforcement of the inner surface of an elastic material based on fenolouchouchuk, the coupling of the tool with the drive pulley is improved. Reinforcement outer

20 surface plastic material increases the strength of the connection of the coils between themselves, which prevents elongation of the coils and their displacement in the longitudinal direction relative to

25 each other.

The drawing shows a diamond-abg raspivna saw.

The tool includes a diamond abrasive layer 1, a casing of pro30 volts 2 which are laid

close to each other. There is an elastic material 3 on the inner surface of the base, and a plastic material 4 on the outer surface. The saw works in the following manner. On the machine, the saw is placed on the driving and driven drum and, with the necessary force, is set in motion with: the required speed. The cutting surface of the saw face is brought into contact with the cut ingot SU1ITOK (or saw) is fed in the direction perpendicular to the direction of movement of the working branch of the saw.

The use of the proposed tool improves the quality of the machined surface due to the increased tool stability. This leads to an increase in the yield of suitable products made of expensive materials, as well as by 20-30%

prolong tool life.

Claims (2)

1. Endless diamond abrasive saw on author. St. 856780, from 1 to 1 so that, in order to improve its performance and durability, the base is provided with a coating of plastic material on the outside, and of elastic material from the inside. 2. The saw according to claim 1, wherein a metal is selected as the plastic material, and as ej actic - film adhesive based on fenokauchuki. Sources of information taken into account in the examination of i 1. USSR Copyright Certificate 856780, cl. B 24 D 5/12, 19.77.