High-temperature resistant workshop primer and preparation process thereof

Abstract

The invention discloses a high-temperature resistant workshop primer, which consists of curing agent and slurry according to a weight ratio of 1:2-4, wherein the slurry comprises the following components in portion by weight: 10 to 30 portions of isopropanol, 0.5 to 4 portions of bentonite, 0.1 to 2 portions of nano gaseous silica, 0 to 5 portions of precipitated silica, 2 to 10 portions of butanol, 1 to 10 portions of industrial ethanol, 50 to 70 portions of zinc powder, 5 to 15 portions of dimethyl benzene, 0 to 20 portions of ferro-phosphorus powder, 0 to 10 portions of ferrotitanium powder, 0 to 5 portions of stainless steel powder, 0 to 2 portions of nickel powder, 0 to 2 portions of titanium white powder, 0 to 2 portions of alumina powder, 0 to 2 portions of precipitated barium sulfate, 0 to 5 portions of feldspar powder, and 0 to 2 portions of aluminum paste. The curing agent comprises the following components in portion by weight: 0 to 2 portions of ammonia water, 0 to 2 portions of sodium ethylate, 0 to 2 portions of potassium fluoride, 15 to 50 portions of ethyl silicate, 0 to 2 portions of AMP-95, 0.05 to 1 portion of sulfuric acid, 0 to 0.5 portion of potassium hydroxide, 3 to 15 portions of distilled water, 5 to 10 portions of industrial ethanol, 15 to 60 portions of isopropanol, and 0 to 10 portions of silicon resin. The temperature resistance of the high-temperature workshop primer can reach 800 DEG C, and the burned area of the workshop primer in welding seams and fire areas can be reduced after high-temperature processing such as welding, cutting, fire correcting and the like.

Description

technical field [0001] The invention relates to an inorganic zinc silicate shop primer which can reduce the burnt area of ​​the shop primer in the welding seam and the pyrotechnic correction area after welding, cutting, pyrotechnic correction and other high-temperature processing, and its temperature resistance can reach 800°C. Preparation. Background technique [0002] Shop primer, also known as steel pretreatment primer and maintenance primer, refers to the first primer sprayed on the steel plate after spraying to a certain level. Its main function is to protect the steel plate during production (including welding, cutting, etc.) , Pyrotechnic correction, etc.) are less subject to atmospheric corrosion. For example, in the shipbuilding industry, it is generally equipped with a large-scale pretreatment and spraying shop primer production workshop. The purchased steel plate is directly sent to the workshop, and the automatic assembly line is used for shot blasting and derus...

AI Technical Summary

Problems solved by technology

[0003] However, the existing shop primer, after high-temperature processing such as welding, cutting or pyrotechnic correction, the coating is seriously carbonized, severely damaged in areas above 400 ° C, and loses its anti-rust function

And because of this kind of corrosion, in shipbuilding, bridge preparation, outdoor support structure and equipment processing, in order to ensure the long-term anti-corrosion life of the structural parts, in general, a thorough secondary sandblasting and rust removal is carried out, which increases the workload.

Images