管道油漆修补方案.docx

1、管道油漆修补方案Table of Content一、Project General Introduction工程概况二、References 编制依据三、Preparations 准备工作四、Painting Process 涂漆工艺1、Confirm the regions that need to repair and repair method确认油漆损伤部位和修补方法 2、Surface Preparation Method表面处理方法3、Painting涂漆五、Quality control and Inspection 质量控制及检查六、Safety 安全七、Paint Prote

2、ction油漆保护一 二 References 编制依据三 Preparations 准备工作1、The design and other technical document is ready; the construction drawing is reviewed.设计及其他技术文件齐全，施工图纸业经会审；2、Construction procedure and technical instructions are completed; The safety training and technical training from international company have b

3、een provided.完成施工方案和技术交底，进行了安全技术教育和国际公司技术培训；3、pipe and fittings shall have qualifications.管段应具备出厂合格证；4、Material, tools, apparatus for test and inspection, construction facility and space are ready.材料，机具，检测仪器，施工设施及场地已齐备；5、Inspection must be done during the course of anticorrosion construction, and pe

4、rform the acceptance immediately after anticorrosion is completed.防腐蚀工程施工过程中，必须进行中间检查；防腐蚀工程完工后，应立即进行验收；6、The coating shall have qualification from its manufacturer 油漆应有制造厂的质量证明书；7、Painting environmental condition shall be in accordance with the information on the product sheet. The surface temperatu

5、re to be 30C.above dew point relative humidity shall be less than 85%.涂装环境条件必须和产品说明书的信息一致。表面温度至少大于露点30C.。相对湿度最大植为85%。8、Selection of Paint 油漆选用DC has provided the painting system suitable for this project. The selection of paint shall strictly follow DC construction painting system. Paint type, finis

6、h paint color and paint repair color should be chosen in accordance with the line list. The specific painting systems are as follows.本项目DC已经给出了适合本项目的油漆系统，油漆选择严格按照DC油漆系统进行选择施工 。油漆种类、面漆和油漆修补的颜色按照line list规定选用，主要有如下种类。详细油漆系统对照表如下：Painting SystemDC201A油漆系统DC201A DC201A：new steelwork，piping and fabricate

7、d equipments，shop prepare（-20 to 1200C）Location 部位DC201ASurface reparation表面处理Abrasive blast cleaning to ISO8501-1 Sa2.5, (Roughness 40-75microns)喷砂处理至 ISO8501-1 Sa2.5，粗糙度达到Rz=40-75 微米Coating System 涂层配套Coat Name涂层名称Product Name 产品名称DFT: microns干膜厚度：微米Prime Coat底漆Inorganic zinc-rich, Interzinc 22 Gr

8、eenish grey, Matt无机富锌底漆 Interzinc 22 绿灰色，平光60-75Mid-Coat中间涂层MIO Epoxy Intergard475HS Gray环氧MIO 中间漆 Intergard 475HS, 灰色100-150Top Coat面漆Polyurethane color：meet Specs requirements聚氨酯面漆 颜色：符合规范要求60-75Typical Minimum/Maximum DFT Range典型最小/最大干膜厚度范围220-300Pipe supports sand blasting, painting requirement

9、should be the same as piping,.管道支架的喷砂、涂漆与管道要求相同。DC201B：Site work and repairs of steelworks,piping and fabricated equipments (-20 to 1200C)Location 部位DC201BSurface preparation表面处理Abrasive blast cleaning to ISO8501-1 Sa2.5, (Roughness 40-75microns)喷砂处理至 ISO8501-1 Sa2.5，粗糙度达到Rz=40-75 微米Coating System 涂

10、层配套Coat Name涂层名称Product Name 产品名称DFT: microns干膜厚度：微米Prime Coat底漆Surface Tolerant Epoxy Intergard670HS低表面处理环氧漆 Intergard670HS100-150Mid-Coat中间漆Surface Tolerant Epoxy Intergard670HS低表面处理环氧漆 Intergard670HS100-150Top-Coat面漆Polyurethane color:meet spec”s requirements 聚氨酯面漆 颜色：符合规范要求50-75Typical Minimum/M

11、aximum DFT Range典型最小/最大干膜厚度范围250-375DC202A：Galvanized surface,handrais(-5 to 600C).(can not use abrasive basting).Location 部位DC202Surface preparation表面处理清理基层表面油污到SSPC-SP1标准要求。Coating System 涂层配套Coat Name涂层名称Product Name 产品名称DFT: microns干膜厚度：微米Prime Coat底漆蚀刻底漆 Interprimer53910-25Mid-Coat中间漆环氧底漆 Inter

12、gard26930-50Top-Coat面漆Polyurethane color: meet spec”s requirements 聚氨酯面漆 颜色：符合规范要求50-75Typical Minimum/Maximum DFT Range典型最小/最大干膜厚度范围90-150Painting SystemDC203 油漆系统DC203DC203：steel piping and fabricated equipment under insulation （-30 to 1550C）Location 部位DC203Surface preparation表面处理Abrasive blast cl

13、eaning to ISO8501-1 Sa2.5, (Roughness 40-75microns)喷砂处理至 ISO8501-1 Sa2.5，粗糙度达到Rz=40-75 微米Coating System 涂层配套Coat Name涂层名称Product Name 产品名称DFT: microns干膜厚度：微米Prime Coat底漆Phonolic epoxy intertherm228环氧酚醛高温漆 intertherm22890-120Top Coat面漆Phonolic epoxy intertherm228环氧酚醛高温漆 intertherm22890-120Typical Min

14、imum/Maximum DFT Range典型最小/最大干膜厚度范围180-240Painting System DC204 油漆系统DC204steel piping and fabricated equipment under insulation （155 to 4000C）Location 部位DC204Surface preparation表面处理Abrasive blast cleaning to ISO8501-1 Sa2.5, (Roughness 40-75microns)喷砂处理至 ISO8501-1 Sa2.5，粗糙度达到Rz=40-75 微米Coating Syste

15、m 涂层配套Coat Name涂层名称Product Name 产品名称DFT: microns干膜厚度：微米Prime Coat底漆Inorganic copolymer intertherm751CSA冷喷铝高温漆 intertherm751CSA90-120Top Coat面漆Inorganic copolymer intertherm751CSA冷喷铝高温漆 intertherm751CSA90-120Typical Minimum/Maximum DFT Range典型最小/最大干膜厚度范围180-2409 Main Equipment & Tools 主要机具A、主要施工工具Des

16、cription机具名称Qty.数量Wheel Grinding Machine砂轮磨光机As necessary按需Manul blasting machine 手动喷砂机As necessary按需Internal Grinding Machine内磨机As necessary按需Power Blender动力搅拌机As necessary按需Scraper刮刀As necessary按需File锉刀As necessary按需Wile Brush钢丝刷Several若干Abrasive Cloth铁砂布Several若干Paint Bucket油漆桶As necessary按需Brush

17、刷子As necessary按需 B、main inspection facility 主要检测工具编号NOName 名称Use 用途Remarks 备注1Thermometer 温度计Test temperature检测温度-1550, need tobe calibratedtermly 需定期校准2Sling psychrometer 手摇湿度计Test temperature and humidity 检测温度和湿度need to becalibrated termly需定期校准3Dew point calculator 露点计算表Calculate dew point计算露点need

18、 to becalibrated termly需定期校准4超生波测厚仪测量涂层厚度need to becalibrated termly需定期校准5Holiday tester 漏涂检测仪Check holidays ofcoatings 检测涂层漏涂点need to becalibrated termly需定期校准6Replicate tape profile tester 复膜胶带法粗糙度检测仪Check the anchorprofile of substrate检测底材表面粗糙度7Tape for test cleaning 清洁度测试胶带Cleaning test 检测清洁度8Fla

19、sh magnifier 放大器9Knife 刀四、Painting Process 涂漆工艺Local Area Touchup for Piping 管道局部损伤及焊缝修补工艺1、确认油漆损伤区域 Confirm damage regions need to repair A、 Areas need to repair需要进行涂层修补的区域Area of welding seam where welding has been done after painting and unqualified local coating area caused by every kind of reas

20、on need to be repaired. Generally components shall be repaired include:对于涂装后进行焊接的焊缝区域和各种原因造成的不合格局部涂层，应进行修补，一般情况下需要进行修补的构件为：Welding seam area: area after construction coating finished.焊缝区域：主要针对主要涂层已施工完毕的焊缝区域。Damaged coating area: damaged by hot working transportation, lifting and loading etc. damaged

21、 local part of coating.涂层损坏区域：由于热工作业和运输，吊装，装卸等原因造成的涂层损伤或损坏局部涂层部位。Over thickness coating cause crack on inorganic zinc silicate coating.由于涂层厚度超厚，而导致无机硅酸锌涂层龟裂部位。Local coating with defects: sagging, omission, pin hole caused by unsuitable construction.有涂层缺陷的局部涂层：由于施工过程中施工不当造成的流挂，漏涂，针孔等局部涂层的位置。Seriously

22、 polluted part of coating: Any contamination has already damaged coating (polluted by cement)or the local area where contamination can be removed by easy cleaning.涂层被严重污染的部位：被污染物严重污染，污染物已造成涂层损坏（被水泥污染），或污染物已无法通过简单的清洗就能除去的局部涂层区域。B、 Method of painting repair涂层修补的方法 For weld seam are or damaged area of

23、coating: Use power sand paper disc to grind the weld seam area or damaged area of coating to Grade St3(damaged coating has been removed entirely ), the pipe welding joint will be treated by manual blasting machine by a level of Sa2.5.Damaged area and unbroken area shall have a overlapping slope. Ove

24、rlapping area shall appear new and fresh surface of coating to enlarge bonding force between repair coating and raw coating. Repair position shall be cleaned adequately after preliminary surface treatment, then repair painting as per the whole set of painting repair system and arrive the designed fi

25、lm thickness. For small area, brush painting shall be used. But spray coating shall be used for mid-coating and final coating when more coating areas connected together. Brushing style will be taken to the touch up works to ensure the appearance of the coating.对于焊缝区域或者涂层损坏区域：应用动力砂纸片将焊缝区域和涂层损坏区域打磨处理到

26、St3级（被损坏的涂层应完全清除），管道焊口采用手持式喷砂机，除锈等级Sa2.5。损坏区域与完好区域涂层应的边缘部位应砂磨出搭接坡度，搭接区域的原涂层应砂磨漏出新鲜的涂层表面，以增加修补涂层与原涂层的结合力。修补位置基层表面处理结束后，应充分清洗该表面，然后按修补油漆配套系统进行涂层修补并达到设计要求的干膜厚度。油漆涂层修补采用刷涂，确保修补涂层的外观。 对于涂层缺陷，涂层龟裂，涂层污染的部位修补：先砂纸片，砂布或其他方法清除缺陷涂层和严重污染涂层。然后按照对该部位涂层进行砂磨和清洗，并保证搭接涂层边缘一定的搭接坡度和新鲜的涂层表面。再按照修补涂层系统进行修补，涂层修补的其他要求同上节。 C、

27、由于固化后的无机锌涂层很难进行自覆涂，因此，对于有缺陷和损坏的无机锌涂层应采用环氧富锌进行修补。 D、 被修补的涂层或基层表面应清洗干净，无污染物，如存在油污应充分清洗油污（达到SSPC-SP1标准）。E、 为确保修补涂层的外观，建议较大面积的涂层采用喷涂的方法施工。注：检查管道外观，对所有在运输、倒运、现场焊接等过程中破坏的涂漆用记号笔做好标记，并标记出打磨处理的范围。确定现场焊口，未试压管段焊口以及不锈钢管的具体的位置。做好标记。2、Surface Preparation 表面处理Surface preparation before painting涂漆前的表面处理Surface prep

28、aration request: grade. St3, thorough rust removal by hand or power machine or arrive Grade Sa2.5 by mechanical rust removal.表面处理粗糙度要求： St3级 彻底的手工和动力工具除锈或者采用机械除锈达到Sa2.5级。Treatment by hand: Unwound scale, rust and aging coating on pipes can be removed in using wire brush or rubber paper or manual mac

29、hine or spade.人工处理：管道表面上松散的氧化皮、锈蚀和老化涂层可用钢丝刷刷掉、砂皮纸砂去、用手工工具刮掉或铲除Power treatment: Its better to use power machine than manual machine when removing scale, rust or aging coating. But it cant be used to remove the rust or scale attached to pipe surface firmly. Normally used power machine includes :wire b

30、rush, impulse tools, grinding machine and rubber sharpening machine. Pay more attention not to polish the metal surface, especially when using power wire brush, or it will destroy the required surface roughness.动力处理：在清除松散的氧化皮、锈蚀和老化涂层时，用动力工具比用人工效果好，而且省力。但是动力工具不能除去紧紧附着在管道表面的锈蚀和氧化皮。通常采用的动力工具，包括钢丝刷、冲击工具

31、、砂轮机及砂皮磨光机。但是必须注意，不要抛光金属表面，尤其是在使用动力钢丝刷时，否则会破坏涂覆所需的表面粗糙度。For cracked coats，grind the coat in the crack area comletely to reach required roughness ， and then commerce the repair paint work 。 对于龟裂的涂层，需将龟裂处涂层彻底打磨，并达到规定的粗糙度要求后再进行油漆的修补。 For cracked and slightly scratched coats，do not grind too hard 。 Only grind to the base coat fo