钢铁表面除锈方法？ carbon steel surfaces to be coated (except those which are galvanized) shall be blast cleaned to near white metal per sspc-sp 10/nace no.2 and the resulting surface shall comply with the cleanliness indicated by the same standard. (note: this requirement shall supersede any cleaning requirement of lesser grade stated in the application data or applicable awwa or nace standards.) spot blast cleaning at the project site for weld joints, fittings and miscellaneous items shall be by vacuum blast cleaning machine. where blast cleaning is not practical, as determined by the owner, the surfaces shall be cleaned per sspc-sp 11 to a minimum surface profile of 1 mil (25um). 要敷层的碳钢（镀锌的除外）表面应按sspc-sp 10/nace标准第二条喷砂处理至近白金属，其后的表面清洁度应与该标准中规定的清洁度一致（注：该要求应取代“使用资料”中或相关的awwa或nace标准中所述的较低等级的任何清洁要求。）现场对焊接点、管配件及其它各种物品的喷砂处理应使用真空喷砂机器。业主认为不适合进行喷砂处理的表面应按sspc-sp 11标准进行处理，表面粗糙度至少为1密耳(25um)。 7.1.3 abrasive blast cleaning of carbon steel pipe surfaces shall result in an angular surface profile of: 碳钢管表面进行磨料喷砂处理应产生的表面粗糙度为： • 0.05 to 0.075 mm for tape coating systems 0.05 to 0.075 mm ，对胶带防腐层系统。 • 0.04 to 0.1 mm for extruded polyolefin resin coating systems 0.04 to 0.1 mm ，对挤压成型的聚烯烃树脂防腐层系统。 7.1.4 particle hardness and size distribution of the blast media employed shall be continually controlled by screening to ensure proper profile. all cleaning shall be done in such a manner that beveled ends and any internal coating as applicable are not damaged. 所用喷砂处理材料的颗粒硬度及粒径级配应通过筛选控制来确保合适的粗糙度。所有处理应避免末端斜面及内防腐层受到损坏。 7.1.5 galvanized surfaces shall be treated with a phosphoric acid based etch primer if any surface preparation is required by the application data. 如果根据“使用资料”要求需要处理镀锌表面，那么应采用磷酸盐蚀刻性底漆。 7.1.6 stainless steel surfaces do not require blast cleaning, but shall be free of all contaminates before coating. cleaning solutions used shall be non-detrimental to stainless steel and shall leave no contaminating residue. 不锈钢表面不需要喷砂处理，但在敷层前应没有任何污染物。所用处理溶液不能损坏不锈钢且不应留下任何残留物查看更多
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