防腐类型:钢管内壁采用环氧树脂涂料 执行规范:AWWAC210-97
Anticorrosion type: epoxy coating adopted for the inner wall
connector type: AWWAC210-97 |
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序号
No. |
阶段
phase |
检查内容
Inspection contents |
频率
frequency |
验收与拒收标准
Acceptance and refusal standard |
|
1 |
环氧树脂涂料接收检查
Epoxy coating acceptance checking |
A.检查文件资料 document |
逐批检查 each lot |
每批都必须带有产品质量合格证
Every lot product should have the certification of fitness |
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B.包装检查
packing |
逐批检查
each lot |
材料必须正确包装,防止损坏
The material must be packed correctly to prevent damage. |
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C.批次控制
Lot control |
逐批检查
each lot |
每一批材料必须有单独的编号,以便在整个处理过程中容易识别与跟踪查找 every lot material must have independent number for easy identifying and tracing . |
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D.原材料存放
Raw material storage |
所有原材料
All material |
所有原材料应封闭包装并存放在干燥的地方 all material should be sealed package and stored in dry place. |
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2 |
钢管内部清洁度
The cleanliness of inner pipe |
A.清洁程度 cleanliness |
100%钢管 100% pipe |
钢管表面不得有油、油脂、灰、土、锈、油漆、鳞片及其它杂物,最终清洁度必须呈金属本色(SSPCSP6)
There is no oil, grease, dust, rust, paint and others on the pipe’s surface. The final cleanliness should be metal color.( SSPCSP6) |
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B.调校表面轮廓对比仪 the surface profile contrastive machine |
每天一次
Once every day |
读数必须与仪器上的零位相吻合
The readings must be accord with zero position of the machine. |
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C.测量表面轮廓
Measure the surface profile |
100%钢管
100% pipe |
测量至少必须是1.5密耳
The measurement must be 1.5 thou at least. |
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D.开车前审核
Audit before driving |
只要以前的各项工作都取得满意的结果
If only all works got satisfied result. |
以下是应该进行测量并需记录的参数:钢管的前进速度 钢管的旋转速度(V旋转)
The following parameters should be measured and recorded: the proceeding velocity of pipes, the rotary speed of pipes ( V type) |
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3 |
内壁标记和检查
Inner wall mark and checking |
A. 钢管编号
Pipe number |
所有验收的钢管100%都做
All accepted pipe |
需要做防腐涂层的钢管都必须有表明已经获准进行防腐处理的标记。钢管编号必须标注在钢管内部。
The pipes needed anticorrosion coating must have the mark that allowed doing anticorrosion. The pipe number must be marked in the pipe. |
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B. 开始清理之前钢管表面检查
The surface inspection before cleaning |
所有批次100%都做
All lot |
钢管所使用的每一批防腐原材料都应在监控之中,以便能够跟踪查找钢管所使用的每一批涂料
Every lot anticorrosion raw material pipe used must be monitored so as to tracing and checking every paint used. |
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C. 钢管表面检查
Surface inspection |
100%钢管
100% pipes |
按照标准中的第2A和2B的要求执行就应该能达到满意的防腐效果
According to the requirements of 2A,2B in the standard to check can reach the satisfied anticorrosion effect. |
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4 |
内壁涂装作业测试
Inner wall painting operation |
A. 涂料体系:环氧树脂涂料
Painting system: epoxy coating |
每一班首次涂漆都要做
The first paint must be done in every shift |
如果钢管表面均匀、没缺陷、就能达到满意的防腐效果
If the surface of pipes has no defect, it can reach the satisfied anticorrosion effect. |
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D. 湿态厚度测量
Humidity thickness measurement |
每一班首次涂漆都要做
The first paint must be done in every shift |
应该进行四次不同的测量。测量应选择在不同的部位
4 different measurements should be done, which should choose different locations. |
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E. 干燥厚度测量
Dry thickness measurement |
每一班首次涂漆都要做
The first paint must be done in every shift |
应该进行四次不同的测量。平均干燥厚度必须等于或大于业主要求后度(单位:密耳)
4 different measurements should be done, which the average dry thickness must not less than required thickness. |
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D.粘合力测试
Adhesion test |
只要以前各步骤都取得了满意的结果 if only the steps before got satisfied result |
应该按照AWWA C210-97(5.2.3)的要求进行刀削测试。只要刀削掉的材料最大长度不超过3.2毫米时,测试就合格。
Slicing test should be done as AWWA C210-97(5.2.3).If only the material length sliced is not exceed 3.2mm, the test can be regarded as qualified. |
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防腐类型:钢管内壁采用环氧树脂涂料
Anticorrosion type: epoxy coating paint used in inner wall of pipe. 执行规范:AWWAC210-97
Connector type: AWWAC210-97 |
序号
number |
阶段
stage |
检查内容
Inspection content |
频率
frequency |
验收与拒收标准
Acceptance and refusal standard |
4 |
内壁涂层检查
Inner wall coating inspection |
E.开始前审核
Auditing |
只要以前各步骤都取得了满意的结果
If only every step can get satisfied result. |
以下是应该进行测量并需记录的参数:钢管的前进速度 钢管的旋转速度(V旋转) 喷涂压缩机压力(压力) 喷涂用的管嘴(管嘴) 喷涂期间管嘴和管壁之间的距离
The following parameters should be measured and recorded: the proceeding velocity,
The pressure of spraying compressor, the nozzle used in spraying, the distance between nozzle and wall during spraying. |
5 |
内壁涂装作业
Inner wall painting operation |
A. 喷涂环氧树脂涂料
Spraying epoxy coating |
100%的钢管
100% pipe |
应该采用连续喷涂的方法来喷涂环氧树脂涂料,并且平均干燥厚度必须等于或大于业主要求后度(单位:密耳)。喷涂时钢管的温度必须在露点以上3摄氏度。
Adopt continuous spraying to paint epoxy coating and the average dry thickness must not be less than the required thickness. (Unit : mil ) the pipe temperature while spraying must be 3℃ above dew point. |
F. 原材料批控
Raw material lot control |
所有批次的原材料
All lot material |
钢管涂料中所使用的每一批原料都应在监控之中,以便于跟踪查找到钢管涂料的批次。
Each raw material used in paint should be in monitoring so as to tracing the paint lot. |
6
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内壁涂层检查
Coating inspection for inner wall
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A.直观检验 intuitive inspection |
100%的钢管
100% pipes
|
成品涂层表面必须均匀,没有下陷、重叠或者气泡。钢管两头必须留出10厘米的未涂区。
The finished product coating surface must be uniform, no sink, lap or bubble. 10cm uncoated area
Must be left at the both ends. |
G. 厚度测量
Thickness measurement |
100%钢管
100% pipes |
应按照第2.C部分的要求进行测量。平均干燥厚度必须等于或大于业主要求后度(单位:密耳)
Measurement should be done as the 2.C. the average dry thickness must not less than the required thickness. |
H. 硬度测量(铅笔硬度)
Hardness measurement( pencil hardness) |
每班一次
Once per shift |
涂层必须有韧性,用F铅笔至少能划3毫米长的线而没有划裂或没有擦伤
The coating must have toughness,3mm line can be drawn with F pencil, but no crack, scratching |
I. 粘合力测试
Adhesion test |
每班一次
Once per shift |
应该按照AWWA C210-97(5.2.3)的要求进行刀削测试。只要刀削掉的材料长度最大不超过3.2毫米,测试就为合格。
Slicing test should be done as AWWA C210-97(5.2.3).If only the material length sliced is not exceed 3.2mm, the test can be regarded as qualified. |
J. 缺陷检测
Defect test |
100%钢管
100% pipe |
待涂层固化以后,要利用缺陷检测器在涂料技术规范中规定的电压下对钢管进行检测。
After the coating solidifying, the pipe test should be done with defect detector under the specified voltage. |
7 |
涂层修复
Coating reparation |
修复 repair |
检测到缺陷的所有钢管
All pipes that have defects |
待修复的区域必须进行清理,除去缺陷。修复面必须平整、光滑、以保证涂层和原涂层一样。
The area that need repaired must be blast cleaning and remove the defect. The repairing surface must be neat, smooth to keep the coating accord with original coating. |
8 |
修复检查
Repairing and checking |
A. 测量涂层厚度
Measure the thickness of coating |
所有修复的钢管
All revised pipe |
每次修复至少应进行两次测量。平均干燥厚度必须等于或大于业主要求后度(单位:密耳)。Every revision should do twice measurements. |
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