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    • 22. 发明授权
    • 강관의 제조장치 및 제조방법
    • 用于制造钢管的装置及其制造方法
    • KR100667173B1
    • 2007-01-12
    • KR1020050081691
    • 2005-09-02
    • 주식회사 세아에프에스
    • 김기혁김순창심재평김종서김경륜김용길
    • B21D51/00C21D1/00C23C2/00
    • C23C2/006C23C2/00C23C2/02C23C2/12Y10T29/4998Y10T29/5185
    • An apparatus for manufacturing a steel pipe and a manufacturing method thereof are provided to improve corrosion resistance of the steel pipe by uniformly plating the aluminum-zinc alloy on the surface of the steel pipe and to easily control thickness of the alloy by injecting the inert gas to the steel pipe through the upper nozzle apparatus. An apparatus for manufacturing a steel pipe is composed of a pipe forming apparatus for forming a steel plate as a steel pipe(1); a heat-processing apparatus for heating-processing the steel pipe through the heating of hot temperature; a pre-treatment apparatus for slow-cooling and annealing the steel pipe; and a plating apparatus having a port(21) storing the welded corrosion resistant alloy containing 55 weight% aluminum and 43.4~44.9 weight% zinc, a level block(26) selectively inserted in the welded alloy, and a plating part(21a). Upper and lower guide rollers(31,30) are installed at the upper and lower ends of the steel pipe. An upper nozzle apparatus(34) is placed at the upper side of the plating part to control thickness of the alloy.
    • 本发明提供一种钢管制造装置及其制造方法,其特征在于,通过在钢管表面均匀镀铝锌合金,通过注入惰性气体容易地控制合金的厚度,提高钢管的耐腐蚀性 通过上喷嘴装置到钢管。 钢管制造装置由用于形成作为钢管(1)的钢板的管形成装置构成。 通过加热热温度对钢管进行加热处理的热处理装置; 用于钢管慢冷和退火的预处理装置; 以及电镀设备,其具有存储焊接耐腐蚀合金的端口(21),其含有55重量%的铝和43.4〜44.9重量%的锌,选择性地插入焊接合金中的水平块(26)和镀覆部分(21a)。 上下导辊(31,30)安装在钢管的上端和下端。 上部喷嘴装置(34)放置在电镀部分的上侧,以控制合金的厚度。