A kind of cashmere grinding sand disc and its production process

Abstract

The invention discloses a high-efficiency and low-cost grinding abrasive disc with a flannelette back. The high-efficiency and low-cost grinding abrasive disc comprises a flannelette layer and an abrasive cloth layer, wherein the abrasive cloth layer comprises a base material layer and an abrasive layer; a mounting hole is formed in the central position of the base material layer, and spiral grooves are uniformly distributed in the surface of the base material layer; the base material layer comprises a first base material layer and a second base material layer; the abrasive layer comprises a first abrasive layer and a second abrasive layer; and a round frosting bar is arranged in the circumferential direction of the second base material layer, and the round frosting bar is fixed at the periphery of the base material layer through a fixing plate. The invention further relates to a production technology of the high-efficiency and low-cost grinding abrasive disc with the flannelette back. The production technology comprises the following process: processing the base material layer; preparing the abrasive cloth layer; bonding abrasive cloth with flannelette; and forming holes, cutting by utilizing baffles and packaging. According to the production technology, the abrasive disc produced is simple in structure and high in strength; in use, abrasive chips and ground chips are not prone to sticking to the abrasive surface and the surfaces of processed workpieces; heat can be rapidly dissipated, so that the work temperature is lowered, and the service life is prolonged; and the cost is low, and the grinding efficiency is high.

Description

technical field [0001] The invention relates to a sand disc and a production process thereof, in particular to a fleece-backed grinding sand disc and a production process thereof, and belongs to the technical field of processing tools. Background technique [0002] Coated abrasives refer to abrasives that use adhesives to adhere abrasives to flexible substrates, also known as flexible abrasives. Coated abrasives are sheet-shaped (rectangular), disc-shaped, and belt-shaped. And other special shapes, the main varieties are gauze (paper) and abrasive belts, which are often used mechanically or manually, and are widely used in the grinding of non-metallic materials such as metal materials, wood, ceramics, plastics, leather, rubber and paint putty , Polishing and grinding, coated abrasives are composed of three parts: abrasives, binders and substrates. Commonly used abrasives are artificial abrasives such as corundum, silicon carbide and glass sand, and sometimes natural abrasive...

AI Technical Summary

Problems solved by technology

[0003] Coated abrasives are divided into seven categories according to their shapes: abrasive rolls, abrasive sheets, abrasive belts, abrasive discs, abrasive discs, abrasive discs, and special-shaped products. The abrasive disc is a kind of longitudinal multi-coated abrasive The grinding tools include sandpaper and velvet body, which are stacked and combined, and several axial through holes are processed on the sandpaper and velvet body. Using the velvet body to adhere to the Velcro belt on the tray, it is easy to assemble and use At the same time, the axial through holes on the sandpaper and the velvet body are also used to absorb the dust and powder generated during the processing in time, improve the processing accuracy, reduce the flying of dust and powder, and have good environmental protection and improve the working environment. However, the sand discs currently used Inefficient and costly to use and complicated to produce

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