Long-rod spray gun spraying bracket and metal pipeline inner wall spraying technology

A technology of metal pipes and spray guns, which is applied in the direction of coating, spraying devices, and devices for coating liquid on the surface, etc. It can solve the problems of poor spraying effect and low spraying efficiency, and achieve improved quality, easy processing, and improved spraying stability. Effect

Active Publication Date: 2015-09-30
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention overcomes the shortcomings of low spraying efficiency and poor spraying effect in the prior art when using a long-stem spray gun to spray the inner wall of a metal pipe with a large diameter, and provides a long-stem spray gun spraying bracket and a metal pipe inner wall spraying process, mainly Achieved the goal of one-time uniform spraying on the inner wall of large-diameter metal pipes, and improved the quality of fired coatings on the inner wall of metal pipes

Method used

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  • Long-rod spray gun spraying bracket and metal pipeline inner wall spraying technology
  • Long-rod spray gun spraying bracket and metal pipeline inner wall spraying technology
  • Long-rod spray gun spraying bracket and metal pipeline inner wall spraying technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like figure 1 , figure 2 and image 3 As shown, the long-rod spray gun spraying bracket of this embodiment includes a bearing 1, a gun barrel sleeve 2, a pole 3 and a base 6, and the bearing 1 is fixed on the upper end of the pole 3. Specifically, the upper end of the pole 3 is circumscribed For the outer ring of the bearing 1, the outer ring of the bearing 1 is fixed on the upper end of the strut 3 by welding. The gun shaft sleeve 2 is fixed on the inner ring of the bearing 1, and the central axis of the gun shaft sleeve 2 is parallel to the central axis of the bearing 1. Specifically, the gun shaft sleeve 2 is inscribed on the inner ring of the bearing 1, and the gun shaft sleeve 2 It is fixed on the inner ring of the bearing 1 by welding, and the gun barrel sleeve 2 and the bearing 1 constitute the rotating mechanism of the long-barrel spray gun spraying bracket of this embodiment. The upper end of the base 6 is provided with a connecting sleeve 5, and the side o...

Embodiment 2

[0074] The basic structure of the long-stem spray gun spraying bracket of this embodiment is the same as that of Embodiment 1, except that the bearing 1 is a deep groove ball bearing, and the diameter of the inner ring of the bearing 1 is 150mm.

[0075] The metal pipe inner wall spraying process of the present embodiment comprises the following steps:

[0076] Step 1. Inner wall substrate treatment:

[0077] Prepare the metal pipe to be sprayed, and the inner diameter of the metal pipe is larger than the diameter of the circular atomization circular surface of the long-stem spray gun. The inner wall of the metal pipe is subjected to four operations of sandblasting and rust removal, angle grinder grinding, sandpaper grinding and inner wall preheating in sequence;

[0078] Step 2. Debugging of spraying equipment:

[0079] Assemble the air compressor, pressure paint tank and long-stem spray gun, and adjust the pressure of the pressure paint tank to 0.4MPa;

[0080] Step 3. Lon...

Embodiment 3

[0087] The metal pipe inner wall spraying process of the present embodiment comprises the following steps:

[0088] Step 1. Inner wall substrate treatment:

[0089] Prepare the metal pipe to be sprayed, and the inner diameter of the metal pipe is less than or equal to the diameter of the circular atomization circular surface of the long-stem spray gun, and the inner wall of the metal pipe is subjected to four operations of sandblasting and rust removal, angle grinder grinding, sandpaper grinding and inner wall preheating in sequence ;

[0090] Step 2. Debugging of spraying equipment:

[0091] Assemble the air compressor, pressure paint tank and long-stem spray gun, and adjust the pressure of the pressure paint tank to 0.4MPa;

[0092] Step 3. Long pole spray gun positioning:

[0093] Prepare the spraying bracket of the long-stem spray gun, insert the gun body of the long-stem spray gun into the gun sleeve 2, adjust the depth of the lower end of the support rod 3 extending i...

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Abstract

The invention discloses a long-rod spray gun spraying bracket and a metal pipeline inner wall spraying technology, and belongs to the technical field of coating spraying. The long-rod spray gun spraying bracket comprises a bearing, a gun rod sleeve, a support rod and a base, wherein the bearing is fixed at the upper end of the support rod; the gun rod sleeve is fixed on the inner ring of the bearing; the central axis of the gun rod sleeve is parallel to that of the bearing; the lower end of the support is fixed on the base. The metal pipeline inner wall spraying technology comprises the following steps: (1) inner wall base material treatment; (2) spraying equipment debugging; (3) long rod spray gun positioning; (4) coating spraying; (5) coating firing. According to the invention, the main aim for one-time uniform spraying of the inner walls of metal pipelines with big pipe diameter is achieved, and the quality of fired coatings on the inner walls of metal pipelines is improved.

Description

technical field [0001] The invention relates to the technical field of paint spraying, and more specifically relates to a long rod spray gun spraying bracket and a metal pipe inner wall spraying process. Background technique [0002] Metal pipes are tools for conveying liquids or gases, and are widely used in various fields of the national economy. During the use of metal pipes, the inner wall of the metal pipe will inevitably have problems such as scaling and corrosion, which will affect the transportation of working fluid in the metal pipe and reduce the service life of the pipe. Therefore, the protection of the inner wall of the metal pipe is particularly important. At present, for the protection of the inner wall of the metal pipeline, the usual method is to coat the inner wall of the pipeline with anti-corrosion and non-stick coatings. The coating of anti-corrosion and non-stick coatings on the inner wall of the pipeline has the advantages of low cost, easy implementati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B15/06B05B13/06B05D7/22B05D3/02
CPCB05B13/0636B05B15/62B05D3/0272B05D7/222B05D2254/04
Inventor 包向军陈光李杰陈涛严大炜闫丹
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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