CN106890780A - 环氧树脂涂层复合钢管表面防腐挂涂方法 - Google Patents

环氧树脂涂层复合钢管表面防腐挂涂方法 Download PDF

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CN106890780A
CN106890780A CN201510964763.2A CN201510964763A CN106890780A CN 106890780 A CN106890780 A CN 106890780A CN 201510964763 A CN201510964763 A CN 201510964763A CN 106890780 A CN106890780 A CN 106890780A
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Prior art keywords
steel pipe
coating
tube surface
steel tube
well
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CN201510964763.2A
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何超
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Chongqing Ante Pipe Industry Co Ltd
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Chongqing Ante Pipe Industry Co Ltd
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Priority to CN201510964763.2A priority Critical patent/CN106890780A/zh
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    • 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
    • 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
    • B05D2350/00—Pretreatment of the substrate
    • B05D2350/10—Phosphatation
    • 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

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

Abstract

一种环氧树脂涂层复合钢管表面防腐挂涂方法包括以下步骤：（1）打磨；（2）除锈；（3）磷化、干燥；（4）预热；（5）涂装；（6）涂层固化；（7）冷却。本发明的有益效果是，经过上述方法涂装出来的工件涂层厚度均匀，表面光滑，色泽一致，无色差，无粉团结块现象。

Description

环氧树脂涂层复合钢管表面防腐挂涂方法
技术领域
本发明涉及钢管表面防腐技术，具体涉及一种环氧树脂涂层复合钢管表面防腐挂涂方法。
背景技术
近年来，随着我国国民经济的快速发展，越来越多的大型钢管应用于矿井、港口码头、海洋工程和市政工程。为了有效地控制大型钢管的腐蚀，延长大型钢管的使用寿命，保证基础设施的安全运行，需要对钢管进行表面防腐处理。最常
使用的防腐处理方法是在钢管的表面喷涂防腐涂料。然而，经过喷涂工艺的钢管防腐涂层存在厚度不齐、表面凹凸和有粉团结块的问题。
发明内容
为解决现有技术经过喷涂工艺的钢管防腐涂层存在厚度不齐、表面凹凸和有粉团结块的问题，本发明提供一种环氧树脂涂层复合钢管表面防腐挂涂方法。
本发明环氧树脂涂层复合钢管表面防腐挂涂方法包括以下步骤：
（1）将来料钢管的法兰进行焊接，并对焊接产生的焊渣进行打磨；
（2）将打磨后的钢管进行除锈；
（3）将除锈后的钢管浸入磷化液中浸泡20-30分钟后取出，以产生磷化膜，并通过逐流风机对钢管进行干燥处理；
（4）将钢管在预热炉中进行预热，预热温度至145℃-160℃；
（5）将预热后的钢管垂直放置到涂装井中，所述涂装井中漂浮有由空压吹浮机吹起的环氧树脂粉，环氧树脂粉涂装在钢管表面，钢管从下井到出井的时间为4秒，涂层的厚度为350微米至500微米；
（6）将钢管移至固化炉中进行涂层固化，固化温度为200℃-220℃，固化时间为20-30分钟；
（7）将固化后的钢管进行冷却。
本发明的有益效果是，经过上述方法涂装出来的工件涂层厚度均匀，表面光滑，色泽一致，无色差，无粉团结块现象。
具体实施方式
环氧树脂涂层复合钢管表面防腐挂涂方法包括以下步骤：
（1）将来料钢管的法兰进行焊接，并对焊接产生的焊渣进行打磨；
（2）将打磨后的钢管进行除锈；
（3）将除锈后的钢管浸入磷化液中浸泡20-30分钟后取出，以产生磷化膜，并通过逐流风机对钢管进行干燥处理；
（4）将钢管在预热炉中进行预热，预热温度至145℃-160℃；该稳定的设定，对于环氧树脂粉吸附在钢管表面的厚度起到至关重要的作用；
（5）将预热后的钢管下井至垂直设置的涂装井中，涂装井中漂浮有由空压吹浮机吹起的环氧树脂粉，环氧树脂粉均匀地漂浮在井中，因为钢管被预热，因此环氧树脂粉会自动涂装在钢管表面，并严格保证钢管从下井到出井的时间为4秒，从而使涂层的厚度位保持为350微米至500微米，以达到最优化的涂层厚度；
（6）将钢管移至固化炉中进行涂层固化，固化温度为200℃-220℃，固化时间为20-30分钟，从而保证涂层的稳固性；
（7）将固化后的钢管进行冷却。
本发明的有益效果是，经过上述方法涂装出来的工件涂层厚度均匀，表面光滑，色泽一致，无色差，无粉团结块现象。

Claims (1)

1.一种环氧树脂涂层复合钢管表面防腐挂涂方法，其特征在于：包括以下步骤：
（1）将来料钢管的法兰进行焊接，并对焊接产生的焊渣进行打磨；
（2）将打磨后的钢管进行除锈；
（3）将除锈后的钢管浸入磷化液中浸泡20-30分钟后取出，以产生磷化膜，并通过逐流风机对钢管进行干燥处理；
（4）将钢管在预热炉中进行预热，预热温度至145℃-160℃；
（5）将预热后的钢管垂直放置到涂装井中，涂装井中漂浮有由空压吹浮机吹起的环氧树脂粉，环氧树脂粉涂装在钢管表面，钢管从下井到出井的时间为4秒，涂层的厚度位为350微米至500微米；
（6）将钢管移至固化炉中进行涂层固化，固化温度为200℃-220℃，固化时间为20-30分钟；
（7）将固化后的钢管进行冷却。
CN201510964763.2A 2015-12-21 2015-12-21 环氧树脂涂层复合钢管表面防腐挂涂方法 Pending CN106890780A (zh)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549341A (zh) * 2008-04-03 2009-10-07 杜道龙 一种管道内外壁涂装工艺及设备

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549341A (zh) * 2008-04-03 2009-10-07 杜道龙 一种管道内外壁涂装工艺及设备

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 *

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Application publication date: 20170627