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提高冷拔钢管耐腐蚀能力最为之有效的办法

2018-11-28 08:43:50 常州市星火铝艺制品有限公司 阅读

为提高冷拔钢管的耐腐蚀性能,对一般冷拔钢管进行镀锌。镀锌冷拔钢管分热镀锌和电镀锌两种回落明显,热镀锌镀锌层厚,电镀锌成本低,表面不是很光滑。吹氧焊管:用作炼钢吹氧用管,一般用小口径的焊接冷拔钢管,规格由3/8-2寸八种。用08、10、15、20或者195-Q235的钢带制作成的,为了防腐蚀镀锌冷拔钢管,有的要进行有效渗铝处理。

In order to improve the corrosion resistance of cold-drawn steel tubes, galvanizing is applied to common cold-drawn steel tubes. Galvanized cold-drawn steel pipes fall obviously in hot-dip galvanizing and galvanizing. Hot-dip galvanizing has thick galvanizing layer, low galvanizing cost and not very smooth surface. Oxygen-blowing welded pipe: used as oxygen-blowing pipe for steelmaking, generally used small-caliber welded cold-drawn steel pipe, specifications from 3/8-2 inch eight. In order to prevent corrosion of galvanized cold-drawn steel pipes, some steel strips made of 08, 10, 15, 20 or 195-Q235 should be aluminized effectively. 无锡镀锌管厂报道称冷镀锌就是电镀锌,镀锌量很少,只有10-50g/m2相关建议,其本身的耐腐蚀性比热镀锌管相差很多。正规的镀锌管生产厂家,为了保证质量,大多不采用电镀锌(冷镀)。只有那些规模小、设备陈旧的小企业采用电镀锌高效耐磨,当然他们的报价也相对便宜一些。今后不准用冷镀锌管作水、煤气管。热镀锌冷拔钢管冷拔钢管基体与熔融的镀液发生复杂的物理、化学反应意见反馈,形成耐腐蚀的结构紧密的锌一铁合金层。合金层与纯锌层、冷拔冷拔钢管基体融为一体。故其耐腐蚀能力强。

Wuxi Galvanized Pipe Factory reported that cold galvanizing is galvanizing, the amount of galvanizing is very small, only 10-50g/m2 related recommendations, its corrosion resistance is much different than hot galvanized pipes. Normal galvanized pipe manufacturers, in order to ensure quality, mostly do not use galvanized (cold plating). Only those small enterprises with old equipment and small scale adopt galvanizing for high efficiency and wear resistance. Of course, their quotation is relatively cheap. Cold galvanized pipes shall not be used as water or gas pipes in the future. Complex feedback of physical and chemical reactions occurs between the matrix of hot-dip galvanized cold-drawn steel pipe and the melting bath, resulting in a zinc-iron alloy layer with a close corrosion resistance structure. The alloy layer is integrated with pure zinc layer and cold-drawn steel tube matrix. Therefore, it has strong corrosion resistance.

冷镀锌冷拔钢管锌层是电镀层工艺流程,锌层与冷拔钢管基体独立分层。锌层较薄,锌层简单附着在冷拔钢管基体上企业投资,容易脱落。故其耐腐蚀性能差。在新建住宅中镀锌冷拔钢管,禁止使用冷镀锌冷拔钢管作为给水管。

The zinc layer of cold-drawn galvanized steel pipes is an electroplating process, and the zinc layer is separately stratified from the base of cold-drawn steel pipes. The zinc layer is thin, and the zinc layer simply adheres to the cold-drawn steel tube matrix for enterprise investment, which is easy to fall off. Therefore, its corrosion resistance is poor. It is forbidden to use galvanized cold-drawn steel pipes as water supply pipes in newly built residential buildings.



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