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Rail transit wagon door surface pretreatment method

A technology for surface pretreatment and railway freight cars, which is applied in the direction of pretreatment surface, used abrasive treatment device, and surface coating liquid device, etc. The installation accuracy and use effect of rail transit railway freight car doors can achieve the effect of ensuring rust removal and strengthening effect, ensuring safety, and improving processing efficiency.

Active Publication Date: 2021-04-02
WUHAN SHIJIHONG EQUIP MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rail transit railway freight car doors are prone to rust when exposed to the air before use. There is a large difference in the size of rail transit railway freight car doors after rusting and before rusting, which affects the installation accuracy and use effect of rail transit railway freight car doors. Rust Affects Appearance of Railway Wagon Doors in Rail Transit

Method used

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  • Rail transit wagon door surface pretreatment method
  • Rail transit wagon door surface pretreatment method
  • Rail transit wagon door surface pretreatment method

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Embodiment Construction

[0054] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention are clearer and easier to understand through the description.

[0055] Referring to the accompanying drawings, it can be seen that the surface pretreatment method for rail freight car doors comprises the following steps,

[0056] Step 1: workpiece conveying;

[0057] The workpiece conveying system sends the workpieces to be processed into shot blasting room A, painting room B, drying room C and dust removal system D in sequence; among them, shot blasting room A includes shot blasting room A2 and cleaning room A3;

[0058] Step 2: Shot blasting;

[0059] Before and after the opening of the shot blasting room and cleaning room A, the dust removal system D is started; the dust removal system D sucks the ...

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Abstract

The invention discloses a rail transit wagon door surface pretreatment method. The method comprises the following steps of first, workpiece conveying, wherein a workpiece conveying system conveys a to-be-treated workpiece into a shot blasting chamber, a paint spraying chamber, a drying chamber and a dust removal chamber in sequence; second, shot blasting cleaning, wherein a shot blasting device conducts shot blasting treatment on the workpiece entering the shot blasting chamber, shots obtained after treatment enter the two sides of a shot blasting chamber body and flow into a sand sliding hopper along the shot blasting chamber body, and the shots in the sand sliding hopper are conveyed to a top transverse screw through a bucket elevator, are cleaned by a cleaner and then enter the shot blasting device through a fan-shaped distribution valve; third, paint spraying, wherein an automatic spray gun in the paint spraying chamber sprays paint to the upper surface and the lower surface of theworkpiece subjected to shot blasting cleaning at the same time; and fourth, drying, wherein the drying chamber dries the painted workpiece. The method has the advantages that shot blasting rust removal treatment is conducted on the surface of a rail transit wagon door, and the mounting precision and the using effect of the rail transit wagon door are guaranteed.

Description

technical field [0001] The invention relates to a method for pretreatment of the door surface of rail transit railway wagons. Background technique [0002] Rail transit railway freight car doors are prone to rust when exposed to the air before use. There is a big difference between the size of rail transit railway freight car doors after rusting and before rusting, which affects the installation accuracy and use effect of rail transit railway freight car doors. Rust affects the appearance of railway wagon doors in rail transit. Therefore, it is necessary to carry out derusting treatment to rail transit railway wagon doors before use. Contents of the invention [0003] The purpose of the present invention is to provide a surface pretreatment method for railway freight car doors in rail transit, to perform shot blasting and derusting treatment on the surface of railway freight car doors in rail transit, so as to ensure the installation accuracy and use effect of the railway...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/08B24C3/08B24C3/14B24C9/00B05B16/20B05D3/04B05B13/04
CPCB24C3/14B24C3/083B24C1/086B24C9/006B24C9/003B05B16/20B05D3/0413B05B13/04
Inventor 梅全胜徐幼东王少斌
Owner WUHAN SHIJIHONG EQUIP MFG CO LTD
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