Steel plate pre-treating method

A pretreatment and steel plate technology, applied in the direction of explosion generating devices, abrasives, metal processing equipment, etc., can solve the problems of high cost, low efficiency, poor pretreatment effect, etc., achieve high processing efficiency, reduce production costs, and improve pollution Effect

Inactive Publication Date: 2013-08-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the deficiencies of poor pretreatment effect, low efficiency and high cost of the steel plate pretreatment method in the prior art, and provides a steel plate pretreatment method with good pretreatment effect and high treatment efficiency

Method used

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  • Steel plate pre-treating method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The pretreatment line includes electromagnetic crane, conveying roller table, air compressor, abrasive mixture supply device, multi-roll leveler, derusting room, flushing device, spraying room, first drying room and second drying room.

[0045] like figure 1 As shown, the conveyor roller table located in the derusting chamber includes three horizontal rollers 1 arranged at intervals. The steel plate 9 is located on horizontal rollers.

[0046] An upper spray gun array 2 is arranged above the horizontal roller, and a lower spray gun array 3 is arranged below the horizontal roller. The nozzles of the upper spray gun array are downward, and the nozzles of the lower spray gun array are upward; the nozzles of the lower spray gun array face two adjacent horizontal rollers interval position.

[0047] like figure 2 As shown, the upper and lower spray gun arrays both include a left spray gun column and a right spray gun column, the left spray gun column is composed of 6 spra...

Embodiment 2

[0063] Embodiment 2 includes all structural parts and step parts in Implementation 1. like Figure 4 Shown, in embodiment 2 except the step part in embodiment 1, also comprise the following steps:

[0064] Step 250, use oxyacetylene flame to spray the surface of the flattened steel plate. The surface temperature of the burned steel plate reaches 40 degrees.

[0065] After the surface of the steel plate with heavy oil stains and stains is cleaned by flame combustion, the subsequent derusting treatment is carried out to ensure the pretreatment effect of the steel plate.

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Abstract

The invention discloses a steel plate pre-treating method. The steel plate pre-treating method comprises the following steps of: hanging a steel plate on a conveyer roller which is used for conveying the steel plate in a multi-roller leveler for leveling the steel plate, conveying the steel plate to horizontally pass through a spray gun array for spraying high-pressure abrasive mixed liquid to the upper surface and the lower surface of the steel plate at a certain running speed through the conveyor roller, wherein the spray gun array is composed of a plurality of spray guns, washing the steel plate by the water added with corrosion inhibitor, conveying the washed steel plate to enter a first drying chamber through the conveyor roller, drying the steel plate, conveying the steel plate to enter a coating chamber through the conveyor roller, coating the maintenance primer on the steel plate by using a tool, conveying the steel plate to enter the second drying chamber through the conveyor roller, drying, conveying the steel plate to the outside of the pre-treatment pipeline through the conveyer roller. The steel plate pre-treating method disclosed by the invention is good in pre-treatment effect, high in processing efficiency, easy to operate and suitable for the processing demands of the work-piece in different materials and different thicknesses.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a steel plate pretreatment method with good pretreatment effect and high treatment efficiency. Background technique [0002] At present, the steel plate for shipbuilding is usually pretreated by the shot blasting derusting pretreatment method, and the shot blasting derusting machine is used to derust the steel plate during the shot blasting derusting pretreatment process. [0003] The shot blasting derusting pretreatment method has the following disadvantages: [0004] The technical parameters of the steel plate surface after the first shot blasting treatment cannot meet the requirements of the new protective coating performance standard issued by the International Maritime Organization, and the pretreated steel plate needs to be treated twice, resulting in low efficiency of steel plate pretreatment, The problem of high cost arises. [0005] Chinese Patent Authorization Pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C5/04B24C3/12B24C5/02
Inventor 刘俊梅黄永生李德堂王化明陈林
Owner ZHEJIANG OCEAN UNIV
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