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摘自澳大利亚BHP公司样本 随着用户对镀锌钢丝和镀锌金属制品耐腐蚀性要求的不断提高,各工业发达国家对厚镀层镀锌钢丝的需求量迅速增加。生产厚镀层镀锌钢丝的传统工艺是采用油浸木炭法。这种工艺镀锌速度低,且产品表面光洁度差。 为了提高生产率和产品质量,澳大利亚BHP公司金属制品部(WPD)于60年代中期研究成功用气体喷吹法生产厚镀层镀锌钢丝。该法是用一种混合气体喷吹从镀锌槽中出来的镀锌钢丝,以控制镀层厚度,并使镀层表面光滑,因而镀锌速度比传统工艺提高75％。继后,WPD又不断改进此工艺,使此工艺比传统工艺具有更为明显的优点:
Taken from a sample of BHP Australia With the continuous improvement of the corrosion resistance requirements of galvanized steel wire and galvanized metal products, the demand for galvanized steel wire with thick coating in various industrialized countries has rapidly increased. The traditional process of producing thick-plated galvanized steel wire is oil-impregnated charcoal. Galvanizing speed of this process is low, and the product surface finish is poor. In order to improve productivity and product quality, the Australian BHP Metal Products Division (WPD) in the mid-60s successfully developed by gas injection method of thick coating galvanized steel wire. The method uses a mixture of gases to blow out the galvanized steel wire from the galvanizing tank to control the thickness of the coating and to smooth the surface of the coating so that the galvanizing speed is increased by 75% over the conventional process. Subsequently, WPD and continue to improve the process, so that the process has more obvious advantages than the traditional process: