Detailed introduction

17

2020

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10

Three Common Heating Methods of Cone Double Barrel Screw

cone double barrel screwThe process is one of the more commonly used in recent years,cone double barrel screwIt is a process combination product with excellent corrosion resistance and wear resistance of the screw. It uses high-speed spraying equipment to spray the surface of the screw to obtain a compact conical twin-barrel screw.cone double barrel screwUsing the method of casting, the high tungsten carbide alloy and cylinder cast into one, the use of special technology, precision molding.

 

cone double barrel screwIn the extrusion process, we can see that the cone double barrel screw works under high temperature, corrosion, strong wear and large torque. There are three common heating methods,MoreThe popular and widely used heating method is the resistance heating method.：

1Resistance heating method

Is to let the current through the resistance is relatively large wire(resistance wire), thereby generating heat, which is then conducted to the material through the barrel wall.

 

2Electric induction heating method.

The outer circumference of the barrel body is equipped with a coil, and the periphery of the coil is equipped with a magnetic conductive silicon steel sheet: when the coil has electricity flowing through, the silicon steel sheet and the barrel form a closed magnetic circuit, and the alternating magnetic flux induces the barrel to generate current, then the barrel generates heat due to a certain resistance value.

 

3Heat carrier heating method.

This heating method refers to the use of water vapor or oil as a heat medium to heat the barrel. Steam needs to be transported by boiler equipment and pipelines, and oil heating is carried by resistance heaters. Two kinds of heating equipment are more messy, high cost, temperature control is difficult, so now rarely used.


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