CN107377341A - A kind of brushing technique of long and thin metal tubing inside coating - Google Patents
A kind of brushing technique of long and thin metal tubing inside coating Download PDFInfo
- Publication number
- CN107377341A CN107377341A CN201710789229.1A CN201710789229A CN107377341A CN 107377341 A CN107377341 A CN 107377341A CN 201710789229 A CN201710789229 A CN 201710789229A CN 107377341 A CN107377341 A CN 107377341A
- Authority
- CN
- China
- Prior art keywords
- coating
- metal tube
- glueballs
- flexible
- brushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
Abstract
The invention belongs to field of surface engineering technique, more particularly to a kind of brushing technique of long and thin metal tubing inside coating.The brushing technique of the present invention can adapt to the bigger long and thin metal tubing of major diameter, under air pressure promotion, ensure that the brushing thickness of long and thin metal tubing inwall is uniform, the problem of being not in holiday and scratch, make tubing long-term stable operation in caustic acid liquid medium or low-level oxidation environment, effectively prevent metal pipe-wall from corroding, while ensure that managing interior medium is not contaminated.
Description
Technical field
The invention belongs to field of surface engineering technique, more particularly to a kind of painter of long and thin metal tubing inside coating
Skill.
Background technology
In energy industry, cooling tower is to provide the important equipment of low-temperature receiver.Recirculated water is during indirect air cooling tower cooler
There is certain corrosiveness to heated surface bundle, corrosion product causes circulating water quality problem and etching problem more and more tighter again
Weight, eventually affects the safe operation of unit.In order to solve this problem, it is badly in need of a kind of reliable tube bank inner wall anti-corrosive process.
At present, in the coating process on surface, most common technique is surface spraying and dip-coating.Through experiment, in internal diameter φ
On 25mm and following relatively slender tube material inwall, spraying and dip-coating can not reach quality requirement, tube wall occur along journey coating
The problem of brushing uneven thickness, subregion holiday and coating raw material waste.It is traditional on internal diameter φ 6mm slender tube material
Surface spraying and dip-coating can not construct.
The content of the invention
The present invention is directed to above-mentioned the shortcomings of the prior art, there is provided a kind of painter of long and thin metal tubing inside coating
Skill.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of painter of long and thin metal tubing inside coating
Skill, step are as follows：
(1) flexible glueballs or piston brush are filled into metal tube to be coated, utilize compressed air or vacuum driving flexible glue
Ball or piston brush advance, and remove the particulate matter and anvil cinder of inner wall of metal tube；
(2) according to metal tube length, coating content needed for inner wall of metal tube brushing is calculated；
(3) using injecting device make closing fluid column, will flexible glueballs be filled into injecting device, inject coating, then will apply
In material brush push-in injecting device, make to form sealing paint fluid column between paint brush and flexible glueballs；
(4) injecting device front end is docked with metal tube one end, injecting device rear end access compressed air；Promoted using compressed air
Paint brush, coating fluid column is extruded, coating is extruded into paint brush bristle periphery, before compressed air promotes paint brush and flexible glueballs
During entering, coating is uniformly brushed in inner wall of metal tube；
(5) set in the metal tube other end exit recycling bin, recovery brush after flexible glueballs, paint brush and remaining
Coating.
The beneficial effects of the invention are as follows：The brushing technique of the present invention can adapt to the bigger long and thin metal tubing of major diameter,
Under air pressure promotion, ensure that the brushing thickness of long and thin metal tubing inwall is uniform, the problem of being not in holiday and scratch, make pipe
Material long-term stable operation in caustic acid liquid medium or low-level oxidation environment, effectively prevents metal pipe-wall from corroding, while ensure to manage
Interior medium is not contaminated.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the coating content injected in step (3) is 1.2-1.4 times of coating content needed for calculating in step (2).
Beneficial effect using above-mentioned further scheme is that filling coating content is slightly larger than filling amount of calculation, to ensure metal
Pipe internal surface is all brushed.
Further, can also be vacuumized in flexible glueballs one end in metal tube, pull flexible glueballs, coating fluid column and
Paint brush, inner wall of metal tube is brushed.
Further, the front-end and back-end of coating fluid column use flexible glueballs, and coating can be in straight length and turnaround section
Deng being brushed in complicated metal pipe.
Brief description of the drawings
Fig. 1 is the brushing schematic diagram of the present invention；
In figure, 1, compressed air；2nd, paint brush；3rd, bristle；4th, coating fluid column；5th, flexible glueballs；6th, metal tube；7th, inject
Device.
Embodiment
The principle and feature of the present invention are described below in conjunction with example, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1
A kind of brushing technique of long and thin metal tubing inside coating, step are as follows：
(1) flexible glueballs 5 is filled into metal tube 6 to be coated, promotes flexible glueballs to advance using compressed air 1, remove
The particulate matter and anvil cinder of inner wall of metal tube；
(2) according to metal tube length, coating content needed for inner wall of metal tube brushing is calculated；
(3) using injecting device 7 make closing fluid column, will flexible glueballs be filled into injecting device, inject coating, then will apply
In material brush push-in injecting device, make to form sealing paint fluid column 4 between paint brush and flexible glueballs；The coating content of injection is step
(2) 1.2-1.4 times of coating content needed for being calculated in；
(4) injecting device front end is docked with metal tube one end, injecting device rear end access compressed air；Promoted using compressed air
Paint brush 2, coating fluid column is extruded, coating is extruded into the periphery of paint brush bristle 3, and compressed air promotes paint brush and flexible glueballs
During advance, coating is uniformly brushed in inner wall of metal tube；
(5) set in the metal tube other end exit recycling bin, recovery brush after flexible glueballs, paint brush and remaining
Coating.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (2)
1. a kind of brushing technique of long and thin metal tubing inside coating, it is characterised in that step is as follows：
(1) flexible glueballs or piston brush are filled into metal tube to be coated, using compressed air or vacuum driving flexibility glueballs or
Piston brush advances, and removes the particulate matter and anvil cinder of inner wall of metal tube；
(2) according to metal tube length, coating content needed for inner wall of metal tube brushing is calculated；
(3) make closing fluid column using injecting device, will flexible glueballs be filled into injecting device, inject coating, then by paint brush
It is pushed into injecting device, makes to form sealing paint fluid column between paint brush and flexible glueballs；
(4) injecting device front end is docked with metal tube one end, injecting device rear end access compressed air；Coating is promoted using compressed air
Brush, coating fluid column is extruded, coating is extruded into paint brush bristle periphery, and compressed air promotes paint brush and flexible glueballs to advance
Cheng Zhong, coating are uniformly brushed in inner wall of metal tube；
(5) recycling bin, flexible glueballs, paint brush and remaining painting after recovery brushing are set in metal tube other end exit
Material.
2. brushing technique according to claim 1, it is characterised in that the coating content of injection is in step (2) in step (3)
1.2-1.4 times of coating content needed for calculating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789229.1A CN107377341A (en) | 2017-09-05 | 2017-09-05 | A kind of brushing technique of long and thin metal tubing inside coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789229.1A CN107377341A (en) | 2017-09-05 | 2017-09-05 | A kind of brushing technique of long and thin metal tubing inside coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107377341A true CN107377341A (en) | 2017-11-24 |
Family
ID=60348076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710789229.1A Pending CN107377341A (en) | 2017-09-05 | 2017-09-05 | A kind of brushing technique of long and thin metal tubing inside coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107377341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940859A (en) * | 2020-09-11 | 2020-11-17 | 山东科技职业学院 | Brazing plating device for inner wall of mining robot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131159A (en) * | 1990-09-25 | 1992-05-01 | Hakko Co Ltd | Method and tool for lining inner surface vertical tube |
| CN1765526A (en) * | 2005-11-25 | 2006-05-03 | 华东理工大学 | Method for painting fluoro resin inside slender metal tube |
| CN101444782A (en) * | 2008-12-26 | 2009-06-03 | 中冶建工有限公司 | Method for cleaning or corrosion-protective coating inner wall of industrial pipeline and device |
| CN101518773A (en) * | 2009-03-24 | 2009-09-02 | 李常胜 | Method and device for clearing rust-dirt and performing anticorrosion coating on metal pipelines |
| CN102527624A (en) * | 2011-12-31 | 2012-07-04 | 陕西天元材料保护科技有限公司 | Internal squeezing rapid coating method of pipe inner wall metal powder coating |
-
2017
- 2017-09-05 CN CN201710789229.1A patent/CN107377341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131159A (en) * | 1990-09-25 | 1992-05-01 | Hakko Co Ltd | Method and tool for lining inner surface vertical tube |
| CN1765526A (en) * | 2005-11-25 | 2006-05-03 | 华东理工大学 | Method for painting fluoro resin inside slender metal tube |
| CN101444782A (en) * | 2008-12-26 | 2009-06-03 | 中冶建工有限公司 | Method for cleaning or corrosion-protective coating inner wall of industrial pipeline and device |
| CN101518773A (en) * | 2009-03-24 | 2009-09-02 | 李常胜 | Method and device for clearing rust-dirt and performing anticorrosion coating on metal pipelines |
| CN102527624A (en) * | 2011-12-31 | 2012-07-04 | 陕西天元材料保护科技有限公司 | Internal squeezing rapid coating method of pipe inner wall metal powder coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940859A (en) * | 2020-09-11 | 2020-11-17 | 山东科技职业学院 | Brazing plating device for inner wall of mining robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |