CN106890781A - Epoxy coating composite steel tube - Google Patents

Epoxy coating composite steel tube Download PDF

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Publication number
CN106890781A
CN106890781A CN201510975002.7A CN201510975002A CN106890781A CN 106890781 A CN106890781 A CN 106890781A CN 201510975002 A CN201510975002 A CN 201510975002A CN 106890781 A CN106890781 A CN 106890781A
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CN
China
Prior art keywords
steel pipe
epoxy coating
microns
well
epoxy
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
Application number
CN201510975002.7A
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Chinese (zh)
Inventor
何超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Ante Pipe Industry Co Ltd
Original Assignee
Chongqing Ante Pipe Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Ante Pipe Industry Co Ltd filed Critical Chongqing Ante Pipe Industry Co Ltd
Priority to CN201510975002.7A priority Critical patent/CN106890781A/en
Publication of CN106890781A publication Critical patent/CN106890781A/en
Pending legal-status Critical Current

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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
    • B05D7/14—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 metal, e.g. car bodies
    • B05D7/146—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 metal, e.g. car bodies to metallic pipes or tubes
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B05D3/0236—Pretreatment, e.g. heating the substrate with ovens
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0272—After-treatment with ovens
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/102—Pretreatment of metallic substrates
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • B05D7/24—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 for applying particular liquids or other fluent materials
    • 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
    • B05D7/50—Multilayers
    • B05D7/51—One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating
    • 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
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • 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
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • 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
    • B05D2254/00—Tubes
    • B05D2254/02—Applying the material on the exterior of the tube
    • 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
    • B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
    • B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
    • B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders
    • 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
    • B05D2420/00—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate
    • B05D2420/01—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate first layer from the substrate side
    • 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
    • B05D2420/00—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate
    • B05D2420/02—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate second layer from the substrate side
    • 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
    • B05D2504/00—Epoxy polymers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A kind of epoxy coating composite steel tube surface anticorrosion is hung coating method and is comprised the following steps：（1）Polishing；（2）Rust cleaning；（3）Phosphatization, drying；（4）Preheating；（5）Application；（6）Curing of coatings；（7）Cooling.The beneficial effects of the invention are as follows by above method application workpiece uniform coating thickness out, surface is smooth, and color and luster is consistent, no color differnece, without powder ball caking phenomenon.

Description

Epoxy coating composite steel tube
Technical field
The present invention relates to steel pipe technical field, and in particular to a kind of epoxy coating composite steel tube.
Background technology
In recent years, with the fast development of Chinese national economy, increasing large-scale steel pipe is applied to mine, port and pier, ocean engineering and municipal works.In order to efficiently control the corrosion of large-scale steel pipe, extend the service life of large-scale steel pipe, it is ensured that the safe operation of infrastructure to steel pipe, it is necessary to carry out surface anticorrosion treatment.Most-often used method for anticorrosion treatment is the surface spraying anticorrosive paint in steel pipe.However, there is a problem of uneven thickness, concave-convex surface by the corrosion-inhibiting coating of steel pipe of spraying coating process and there is powder ball to lump.
The content of the invention
To solve the problems, such as that prior art corrosion-inhibiting coating of steel pipe has uneven thickness, concave-convex surface and has powder ball to lump, the present invention provides a kind of epoxy coating composite steel tube.
Epoxy coating composite steel tube of the present invention includes steel pipe body, and the outer surface of the steel pipe body hangs and scribbles epoxy coating, and the epoxy coating hangs the outer surface for being coated in the steel pipe body by following steps：
（1）The flange of supplied materials steel pipe is welded, and butt welding raw welding slag of practicing midwifery is polished；
（2）Steel pipe after polishing is eliminated rust；
（3）Immersion in steel pipe immersion Phosphating Solution after rust cleaning is taken out after 20-30 minutes, to produce phosphating coat, and treatment is dried to steel pipe by valley-fill blower fan；
（4）Steel pipe is preheated in preheating furnace, preheating temperature is to 145 DEG C -160 DEG C；
（5）Steel pipe after preheating is gone into the well into vertically disposed application well, floating has the epoxy resin powder blown afloat by the pneumatics machine of blowing floating in application well, epoxy resin powder is painted on steel tube surface, and the time of steel pipe well from going into the well to going out is 4 seconds, and the thickness position of coating is 350 microns to 500 microns；
（6）Curing of coatings is carried out during steel pipe is moved into curing oven, solidification temperature is 200 DEG C -220 DEG C, and hardening time is 20-30 minutes；
（7）Steel pipe after solidification is cooled down.
Further, the epoxy coating outer surface is also wrapped on the epoxy coating of addition antiseptic.
Further, the thickness of the epoxy coating of the addition antiseptic is 100 microns to 200 microns.
The beneficial effects of the invention are as follows by above method application workpiece uniform coating thickness out, surface is smooth, and color and luster is consistent, no color differnece, without powder ball caking phenomenon.
Brief description of the drawings
Fig. 1 is epoxy coating compound steel pipe structure schematic diagram of the present invention.
The present invention is further illustrated with reference to the accompanying drawings and examples.
Specific embodiment
Fig. 1 is epoxy coating compound steel pipe structure schematic diagram of the present invention.In figure, 1 is steel pipe body, and 2 is epoxy coating, and 3 is the epoxy coating of addition antiseptic.
As shown in Figure 1, epoxy coating composite steel tube includes steel pipe body 1, and the outer surface of steel pipe body 1 hangs and scribbles epoxy coating 2, and epoxy coating 2 hangs the outer surface for being coated in steel pipe body 1 by following steps：
（1）The flange of supplied materials steel pipe is welded, and butt welding raw welding slag of practicing midwifery is polished；
（2）Steel pipe after polishing is eliminated rust；
（3）Immersion in steel pipe immersion Phosphating Solution after rust cleaning is taken out after 20-30 minutes, to produce phosphating coat, and treatment is dried to steel pipe by valley-fill blower fan；
（4）Steel pipe is preheated in preheating furnace, preheating temperature is to 145 DEG C -160 DEG C；
（5）Steel pipe after preheating is gone into the well into vertically disposed application well, floating has the epoxy resin powder blown afloat by the pneumatics machine of blowing floating in application well, epoxy resin powder is painted on steel tube surface, and the time of steel pipe well from going into the well to going out is 4 seconds, and the thickness position of coating is 350 microns to 500 microns；
（6）Curing of coatings is carried out during steel pipe is moved into curing oven, solidification temperature is 200 DEG C -220 DEG C, and hardening time is 20-30 minutes；
（7）Steel pipe after solidification is cooled down.
The outer surface of epoxy coating 2 is also wrapped on the epoxy coating 3 of addition antiseptic, the thickness of the epoxy coating 3 of the addition antiseptic is 100 microns to 200 microns, it can effectively suppress and kill the microorganisms such as the bacterium outside pipeline, strengthen pipeline antiseptic power.
The beneficial effects of the invention are as follows by above method application workpiece uniform coating thickness out, surface is smooth, and color and luster is consistent, no color differnece, without powder ball caking phenomenon.

Claims (3)

1. a kind of epoxy coating composite steel tube, including steel pipe body, the outer surface of the steel pipe body hangs and scribbles epoxy coating, it is characterised in that：The epoxy coating hangs the outer surface for being coated in the steel pipe body by following steps：
（1）The flange of supplied materials steel pipe is welded, and butt welding raw welding slag of practicing midwifery is polished；
（2）Steel pipe after polishing is eliminated rust；
（3）Immersion in steel pipe immersion Phosphating Solution after rust cleaning is taken out after 20-30 minutes, to produce phosphating coat, and treatment is dried to steel pipe by valley-fill blower fan；
（4）Steel pipe is preheated in preheating furnace, preheating temperature is to 145 DEG C -160 DEG C；
（5）Steel pipe after preheating is gone into the well into vertically disposed application well, floating has the epoxy resin powder blown afloat by the pneumatics machine of blowing floating in application well, epoxy resin powder is painted on steel tube surface, and the time of steel pipe well from going into the well to going out is 4 seconds, and the thickness position of coating is 350 microns to 500 microns；
（6）Curing of coatings is carried out during steel pipe is moved into curing oven, solidification temperature is 200 DEG C -220 DEG C, and hardening time is 20-30 minutes；
（7）Steel pipe after solidification is cooled down.
2. epoxy coating composite steel tube according to claim 1, it is characterised in that：The epoxy resin is applied
Layer outer surface is also wrapped on the epoxy coating of addition antiseptic.
3. epoxy coating composite steel tube according to claim 2, it is characterised in that：The thickness of the epoxy coating of the addition antiseptic is 100 microns to 200 microns.
CN201510975002.7A 2015-12-21 2015-12-21 Epoxy coating composite steel tube Pending CN106890781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510975002.7A CN106890781A (en) 2015-12-21 2015-12-21 Epoxy coating composite steel tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510975002.7A CN106890781A (en) 2015-12-21 2015-12-21 Epoxy coating composite steel tube

Publications (1)

Publication Number Publication Date
CN106890781A true CN106890781A (en) 2017-06-27

Family

ID=59190333

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510975002.7A Pending CN106890781A (en) 2015-12-21 2015-12-21 Epoxy coating composite steel tube

Country Status (1)

Country Link
CN (1) CN106890781A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707915A (en) * 2018-12-21 2019-05-03 南通好的防腐装备有限公司 A kind of pipeline limit ring and pipeline processing technique
CN111058022A (en) * 2019-11-28 2020-04-24 广州市敬业金属实业有限公司 Anticorrosion and antibacterial treatment method for iron handrails

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549341A (en) * 2008-04-03 2009-10-07 杜道龙 Process for coating inner wall and outer wall of pipeline and equipment
CN204597429U (en) * 2015-05-12 2015-08-26 山东现代诚信实业有限公司 The dual anti-compound cable tube of mildew-resistant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549341A (en) * 2008-04-03 2009-10-07 杜道龙 Process for coating inner wall and outer wall of pipeline and equipment
CN204597429U (en) * 2015-05-12 2015-08-26 山东现代诚信实业有限公司 The dual anti-compound cable tube of mildew-resistant

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
《机械产品涂装技术手册》编写组: "《机械产品涂装技术手册》", 31 May 1996, 机械工业出版社 *
兰州化学工业公司化工机械研究所: "《石油、化工实用防腐蚀技术第10册 防腐蚀涂料》", 30 April 1975, 燃料化学工业出版社 *
殷锐钰: "《钢的质量现代进展（上篇） 普通碳素钢和低合金钢》", 30 November 1995, 冶金工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707915A (en) * 2018-12-21 2019-05-03 南通好的防腐装备有限公司 A kind of pipeline limit ring and pipeline processing technique
CN111058022A (en) * 2019-11-28 2020-04-24 广州市敬业金属实业有限公司 Anticorrosion and antibacterial treatment method for iron handrails
CN111058022B (en) * 2019-11-28 2021-09-28 广州市敬业金属实业有限公司 Anticorrosion and antibacterial treatment method for iron handrails

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Application publication date: 20170627

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