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国内生产镀锌钢管的厂家,除少数从日本、意大利等国引进成套镀锌机组外,均属40年代装备水平,镀锌管的质量达不到国家标准。 目前,先进的全浸式钢管低温镀锌机组都采用下部输送钢管的磁力辊道,它由数个磁性能优良的永磁辊及电磁辊共同组成,克服了老式的上部输送钢管带来的锌耗大,镀锌表面易划伤,产量低等缺点。我们于1983年开始研制的CG型、DCG型磁力辊,就是这种先进的钢管镀锌工艺中必不可少的传
Domestic manufacturers of galvanized steel pipe, with the exception of a few from Japan, Italy and other countries to introduce complete sets of galvanizing units, are 40 equipment, the quality of galvanized pipe less than the national standard. At present, the advanced all-immersed steel low-temperature galvanizing units are used to transport the lower part of the magnetic steel roller, which consists of several excellent magnetic properties of permanent magnet roller and the electromagnetic roller to overcome the old zinc pipe to bring the upper part of the zinc Large consumption, easy to scratch galvanized surface, low yield shortcomings. We started in 1983, CG-type, DCG-type magnetic roller, is this advanced galvanized steel pipe technology essential to pass