High temperature and erosion resistant centrifugal roller and its manufacturing method

Abstract

This invention discloses a centrifugal roller able to endure high temperature and brushing, which comprises the roller blank parent, protective layer on the outskirt of the parent. This invention also discloses a process method, which comprises the following steps: adopting general steel material to get roller parent; wielding the roller circle by use of manganese and steel wielding wire and carbon dioxide automatic wielding machine; drilling cool water into the inner hole of the roller to form the centrifugal manganese steel protective layer; then processing the centrifugal roller to get the needed centrifugal roller with protective layer.

Description

technical field [0001] The invention relates to a centrifuge for processing high-temperature melt, in particular to a centrifugal roller on the centrifuge and a manufacturing method thereof. Background technique [0002] In the production of thermal insulation materials such as rock wool and mineral wool, the main process is that the high-temperature melt is centrifuged into fibers at high speed by a four-roller centrifuge, so the centrifuge is one of the main production equipment. As the main part of the centrifuge, the centrifugal roller must be resistant to high temperature and erosion. In order to ensure the use, all manufacturers use stainless steel welding wire (HICr18Ni9Ti) to process the protective layer on the centrifugal roller. Based on the cost problem, the centrifugal roller blank body is generally processed by ordinary steel. [0003] This kind of centrifugal roller with stainless steel as the protective layer maintains a good level in terms of service time, b...

AI Technical Summary

Problems solved by technology

[0004] First, due to the high price of argon gas used in stainless steel welding wire and stainless steel shielded welding, the cost of processing or repairing such centrifugal rollers is very high;

[0005] Second, the roll blank is easily deformed by heat during production, and the reuse rate is low;

[0006] Third, the surface of the roller is easy to expand and crack after being heated, and the finish is not high, which affects the quality of the finished product

[0007] Due to the above-mentioned defects, the production cost is very high, and the cotton yield and product quality are reduced

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