酸洗钝化技术流程

Pickling passivation technology specifications

酸洗钝化技术方案流程书

1.Description of the work surface.

表面处理工作描述

1.1 Medium stainless steel surface of the polished surface polishing work to reach 3.5 micron.

不锈钢介质面的表面打磨抛光工作达到3.5微米.

1.2 Stainless steel welds (including weld puzzle, sub-weld, close crack, crack open, and so on) after polishing welding work.

1.2不锈钢焊缝(包括拼板焊缝,分段焊缝,合拢缝,开孔缝等)焊接后的抛光工作

1.3 Stainless steel surface polishing paste special PE protective film to protect. Weld on both sides and set aside space around the sub-Brush flying anti-white pulp.

1.3不锈钢抛光面贴专用PE保护膜进行保护.焊缝两边及分段四周预留空白处刷涂白浆防飞溅。

1.4 Stainless steel surface defects, cracks, pitting, scratches, welding slag, spatter, welding, such as discoloration of the apparent defects left after the repair welding and grinding of all types of repair, polishing and acid passivation.

1.4不锈钢表面缺陷、裂纹、麻点、划痕、焊渣、飞溅、焊接变色等表观缺陷的抛磨及补焊后的各类修复，再抛光及酸洗钝化.

1.5 Frame in the process of dismantling the cabin on the part of the block defective parts to add polish to deal with.Pickling of.

1.5舱内拆架过程中对遮挡部分有缺陷部位的补充抛光处理。

1.6 Prior to high-pressure washing and washing work.

1.6酸洗前的高压冲洗及碱洗工作。

1.7 Passivation pickling liquid cargo and sewage tanks all part of the inner surface of stainless steel.

1.7酸洗钝化液货舱及污液舱所有不锈钢内表面部分。

1.8 Passivation pickling liquid cargo control, ventilation pipes, pipe purge, and other systems.

1.8酸洗钝化液货管、透气管、吹扫管等系统。

1.9 Pickling passivation all inside the annex to the outer surface of stainless steel.

1.9酸洗钝化舱内所有不锈钢附件外表面。

1.10 Deck surface of all grades of stainless steel tubes (including the duplex stainless steel) and the outer surface of the weld acid passivation. Quality: to remove both sides of the weld and heat affected zone of slag, color oxides, tempering oxide film so that the seam bright white, re-generation of passive film, at the same time removing the outer surface of the pipeline to other parts of the Xiuban, splash , Welding slag, such as oil pollution.

1.10甲板面上所有不锈钢管系（含双相不锈钢）的外表面及焊缝的酸洗钝化处理。质量要求：去除焊缝及两边焊接热影响区的熔渣、变色氧化物、回火氧化膜等，使焊缝光亮银白，重新生成钝化膜，同时除去管线外表面其它部位的锈斑、飞溅、焊渣、油污等。

1.11 Stainless steel tank and set the annex to the polishing and acid pickling passivation.

1.11不锈钢集油槽及附件的抛光和酸洗钝化处理。.

2.The construction process

2.施工工序

Overview: The surface of stainless steel construction necessary to carry out the following steps: weld grinding → Welding → defect detection and film restoration → testing and rework defect site inspection →

→ weld sheet metal and polishing rough →→ test after passing the test →→ fine polishing Qualified After the protective film paste →→ washing clean passivation pickling →→→ check → acid washing after handling → defects in point Blue and emissions testing →→ passive film after passing the acceptance letters drying module.

Stainless steel to protect them throughout the construction process.

概述:不锈钢表面施工要进行以下必需步骤:焊缝打磨→缺陷补焊→探伤、拍片→修复缺陷及探伤返工部位→检查→板材及焊缝粗抛光→检验→合格后精抛光→检验→合格后贴保护膜→碱洗→清洗→酸洗钝化→冲洗→检查→酸洗后缺陷处理→中和排放→蓝点检验钝化膜→验收合格后吹干封舱.

其中不锈钢保护贯穿整个施工过程.

A:Polished concrete process:

A:抛光具体工序:

2.1 Stainless steel sheet and is expected in the next before and after the partition groove with the complete separation of carbon steel, stainless steel plate at the same time should be between the separate pieces of wood lining.

2.1 不锈钢板材及槽型隔板在下料前后与碳钢完全隔离，同时不锈钢板之间应衬木块隔开。

2.2 Side, deck, stainless steel sub-floor media package should face strict isolation to prevent rust blasting process impurities, sand and dust falling into the hands of carburization corrosion.

2.2舷侧、甲板、底板分段不锈钢介质面应包严隔离，防止除锈喷砂工序杂质、砂尘落入渗碳锈蚀。

2.3 Medium stainless steel surface and weld first polishing rough treatment, to remove cracks, pitting, scratches, welding slag, spatter, welding flaws the apparent color and so on.

2.3不锈钢介质面及焊缝先进行粗抛光处理,去除裂纹、麻点、划痕、焊渣、飞溅、焊接变色等表观缺陷。

2.4 Inspection rough left side, cut deeper part of the plate, 0.2mm more than the Ma Hang, and weld porosity, welding is not full, and other repair parts for repair welding to deal with, and then left rough until qualified. Sub-film site also fail to be disposed of.

2.4检验粗抛面，对板材较深划伤部分、0.2mm以上的麻坑及焊缝气孔、焊接不饱满等部位进行补焊修复处理,再粗抛直到合格。分段拍片不合格部位也需处理完毕.

2.5 The next step to deal with fine polishing, testing Ra6.4μm achieve precision polishing, sweeping clean the surface of stainless steel affixed to a dedicated PE protective film.

2.5下一步精抛光处理，检验达到抛光精度Ra6.4µm后,清扫干净表面,贴不锈钢专用PE保护膜。

2.6 In the protective film to be posted at both ends of the plate aside 30-50cm welding anti-spatter areas, large white powder coating to the "white pulp" in order to facilitate the removal of welding slag welding shut, flying objects.

2.6贴保护膜需在板材两端各留出30—50cm防焊接飞溅区,改涂大白粉“白浆”，以利于清除合拢焊接焊渣、飞溅物.

2.7 For paint coating on stainless steel part of the film did not need the protection of isolation, to guard against infiltration of stainless steel surface paint.

2.7作油漆涂装时对不锈钢未贴膜部分仍需隔离保护，谨防油漆渗入不锈钢面.

2.8 Good to deal with sub-protective cover, to be close by Groove.

2.8处理好的分段遮盖防护，待合拢用.

2.9 Order bulkhead also be carried out according to a rough polishing, repairing, testing, fine cast, the film