Method for producing large-diameter high-speed resin cutting slice and heavy-load resin grinding wheel

Abstract

The present invention discloses a method for manufacturing large-diameter high-speed resin cutting slice and heavy-load resin abrasive wheel. The improvement of the invention is that the pressing of blank is executed on a presser with pressure of 32000-72000KN, and the pressing time is 5-120min. The pressing temperature is preferably 40-180 DEG C. The pressing time is preferably 5-20min to the large-diameter high-speed resin cutting slice. The pressing time is preferably 30-120min to the heavy-load resin abrasive wheel. A plurality of layered placement mold modes can be adopted for pressing, and 3-20 pieces of large-diameter high-speed resin cutting slice or heavy-load resin abrasive wheel are pressed each time. The manufacturing method of the invention remarkably increases the pressing pressure and is matched with appropriate pressing time and pressing temperature. The flowing, fusing and polymerization performances of material in pressing procedure are increased. The product densityand revolving intensity are increased thereby effectively increasing the cutting performance and service lifetime, increasing the production efficiency and guaranteeing the quality stabilization.

Description

technical field [0001] The invention relates to a method for making a large-diameter high-speed resin cutting sheet for high-temperature and high-speed cutting of steel and a heavy-duty resin grinding wheel for heavy-duty grinding of steel. Background technique [0002] The diameter is between 1250-1800mm, and the line speed is between 80-120m / s, that is, the large-diameter high-speed resin cutting disc and the heavy-duty resin grinding wheel have a very high impact on the molding density and gyration strength of the product due to their special working conditions. requirements. The pressing process in the existing production method of this type of product is completed on a press with a pressure of 16,000-31,000KN, the pressing temperature is normal temperature or high temperature, and a single set of molds is used, that is, only one grinding wheel blank can be pressed at a time. Cutting discs and grinding wheels made by this method have a molding density of 2.1g / cm 3 Belo...

AI Technical Summary

Problems solved by technology

Cutting discs and grinding wheels made by this method have a molding density of 2.1g / cm 3 Below, the gyration strength is difficult to meet the work requirements, and the service life is short. Usually, a cutting blade can only cut 60-85 tons of bars with a diameter of 60mm. At the same time, the production efficiency of the existing production methods is also low.

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