W-type electric heating pipe

Abstract

The invention discloses a W-type electric heating pipe. A metal electric heating pipe body of the W-type electric heating pipe is subjected to passivating treatment. The passivating treatment comprises the following steps that (1) 1-2 parts of dodecyl trimethyl ammonium chloride, 1.9 parts of heterogeneous aliphatic alcohol phosphate, 2.2 parts of hexyldecanol, 0.8 part of triazole, 0.6 part of magnesium nitrate are sequentially put into 35 parts of deionized water, and even stirring is conducted; (2) 5.3 parts of 1-hydroxyethylidene-1,1-diphosphonicacid, 2.3 parts of dibutyl succinate, 3.5 parts of dodecylbenzene sulfonic acid, 1.3 parts of ethylenediaminetetraacetic acid disodium salt, 0.9 part of mercaptobenzothiazole are sequentially put in, stirring is conducted continuously to enable sufficient even mixing to be achieved, and passivation treatment liquid is obtained; and (3) the metal electric heating pipe body is placed in the passivation treatment liquid to be subjected to the passivating treatment with the temperature being 50 DEG C and the treatment time being 30 seconds, and after being taken out, the metal electric heating pipe body is cleaned through pure water and then dried. According to the W-type electric heating pipe, the metal electric heating pipe body of the W-type electric heating pipe is subjected to the passivating treatment, so that performance is good, and surface smoothness is high.

Description

technical field [0001] The invention relates to a W-type electric heating tube. Background technique [0002] The existing W-type electric heating tube includes a metal electric heating tube body, but the antirust, corrosion resistance, abrasion resistance, oxidation resistance, and heat resistance of the metal electric heating tube body need to be improved, and the surface finish is not ideal. Contents of the invention [0003] The purpose of the present invention is to provide a W-type electric heating tube, the main body of the metal electric heating tube is passivated, and a uniform passivation protective film is formed on the metal surface, which has excellent rust resistance, corrosion resistance, abrasion resistance, oxidation resistance, Heat resistance and good surface finish. [0004] In order to achieve the above object, the technical solution of the present invention is to design a W-shaped electric heating tube, which includes a metal electric heating tube bo...

AI Technical Summary

Problems solved by technology

[0002] The existing W-type electric heating tube includes the main body of the metal electric heating tube, but the antirust, corrosion resistance, abrasion resistance, oxidation resistance, and heat resistance of the metal electric heating tube body need to be improved, and the surface finish is not ideal.