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Surface pretreatment method of railway wagon door in rail transit

A technology for surface pretreatment and railway freight cars, which is applied to the surface pretreatment, the device for coating the surface with liquid, the treatment device for used abrasives, etc. Use effect, affect the appearance of rail transit railway freight car doors, etc., to ensure safety, ensure rust removal and strengthening effect, and achieve the effect of continuous and stable shot blasting and rust removal

Active Publication Date: 2022-05-10
WUHAN SHIJIHONG EQUIP MFG CO LTD
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  • Abstract
  • Description
  • Claims
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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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  • Surface pretreatment method of railway wagon door in rail transit
  • Surface pretreatment method of railway wagon door in rail transit
  • Surface pretreatment method of railway wagon door in rail transit

Examples

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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 method for pretreatment of the door surface of rail transit railway wagons. It includes the following steps, step 1: workpiece conveying; the workpiece conveying system sends the workpiece to be processed into the shot blasting room, painting room, drying room and dust removal room in sequence; step 2: shot blasting cleaning; the shot blasting machine enters the shot blasting room The workpiece in the chamber is subjected to shot blasting treatment, and the processed shot material enters both sides of the shot blasting chamber body and flows into the sand hopper along the shot blasting chamber body; the shot material located in the sand hopper is transported to the top horizontal spiral by the bucket elevator, After being cleaned by the cleaner, it enters the shot blasting machine through the fan-shaped distribution valve; Step 3: Spraying paint; the automatic spray gun in the paint spraying room sprays paint on the upper and lower surfaces of the workpiece after shot blasting; Step 4: Drying; Drying The room is used to dry the painted workpieces. The invention has the advantages of performing shot blasting and derusting treatment on the surface of the railway freight car door in rail transit, thereby ensuring the installation accuracy and the use effect of the railway freight car door in rail transit.

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 Patents(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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