Processing technology for electric heating tube

Abstract

The invention relates to a processing technology for an electric heating tube. The processing technology includes the following steps: step 1. processing a heating wire, namely a step of mounting theheating wire on a lead rod and performing spot welding; step 2. filling powder, namely a step of changing a rubber plug structure used in a powder filling process, and increasing the creepage distancebetween a rubber plug upper lead rod and a tube nozzle, making the heating wire penetrate into a hollow tube by utilizing a powder filling machine, and filling dense magnesium oxide powder between the heating wire and the hollow tube; step 3. performing riveted joint, namely a step of riveting a tube nozzle rubber plug and the electric heating tube into a hexagon, and tightly connecting the rubber plug and the electric heating tube; step 4. stretching, riveting the pipe nozzle rubber plug and the electric heating tube into the hexagon by utilizing a riveting die to make the rubber plug and the electric heating tube tightly connected; step 5. cutting the rod, namely a step of cutting the lead rod into the rod with the consistent exposed length; and step 6. bending the tube, namely a step of bending the electric heating tube into the tube with a specified shape by utilizing a pipe bender and to meet dimensional requirements of a drawing. The processing technology for the electric heating tube overcomes the shortcomings of wasting materials and polluting environment by dust caused by a traditional process, and has the advantages of simplifying process steps and improving the processing efficiency.

Description

technical field [0001] The invention relates to the technical field of electric heating tube processing, in particular to an electric heating tube processing technology. Background technique [0002] At present, the traditional electric heating tube processing process is: heating wire processing, powder filling, tube shrinking, car tube, powder digging, rod cutting, and tube bending. The products produced by the existing shrinking process will have inconsistent tube lengths. The main reason is that the powder filling density of each product will be different, and the elongation rate of each tube will be different, etc., and the car tube process will be added later. To make the pipe into a consistent length, it is necessary to increase the powder digging process to remove the excess magnesium oxide powder at the pipe mouth. This process requires a part of the length to be removed by the car, resulting in waste of raw materials, and dust pollution in the car pipe and powder d...

AI Technical Summary

Problems solved by technology

This process requires the length of the car to go, resulting in waste of raw materials, and dust pollution in the car pipe and powder digging process, which seriously affects the environment

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