New hot spraying zinc anticorrosion process of steel tube rod

Abstract

The invention provides a new hot spraying zinc anticorrosion process of a steel tube rod. The process is characterized by using iron sand to replace quartz sand and spraying the iron sand with compressed air to strike the surface of the rod body base material to improve the roughness of the treated surface to be more than 60mu m. The process has the beneficial effects of using the iron sand to replace the quartz sand and spraying the iron sand with compressed air to strike the surface of the rod body base material to improve the roughness of the treated surface, thus meeting the relevant technical requirements and relieving the environmental pollution. The iron sand can be recycled, thus lowering the production cost.

Description

A new anti-corrosion process of hot-spraying zinc for steel pipe rods Technical field: The invention relates to a thermal spray zinc anticorrosion process for steel pipe rods for power transmission, in particular to a thermal spray zinc anticorrosion process using iron sand instead of quartz sand for surface treatment. Background technique: At present, among all the anti-corrosion processes of steel pipe rods for power transmission, the thermal spray zinc anti-corrosion process is used more than the hot-dip galvanized anti-corrosion process, and the effect is better. However, in the thermal spray zinc anti-corrosion process, compressed air is used to spray quartz sand. Surface treatment of the base material, due to the limitation of the hardness of the quartz sand, the surface treatment effect cannot meet the technical requirements in the range of roughness 40-60um, so that the bonding force between the subsequent zinc spray layer and the base material cannot meet the relev...

AI Technical Summary

Problems solved by technology

In order to overcome the disadvantage that the process of blasting the base metal with compressed air spraying quartz sand can not ensure that the surface roughness of the base material meets the relevant technical requirements, the present invention provides a new anti-corrosion process of hot-spraying zinc for steel pipe rods