由于钎焊自行车架时需要用薄带片,成品厚度见表1。 通常生产此种薄带的工艺为:配料—烘干—熔炼—铸锭—扒皮—加热—锻造—加热—热轧—退火—酸洗—冷轧—软化处理—酸洗—成品。可见其工艺过程是很繁复的。而新研制的焊料又很脆,不易加工成形,成材率很低,经该算,每吨成品带材仅加工费就需2000元。因此,尽管焊料早已通过鉴定,也不易组织生产和及时推广应用。为此,我们采用了液态直接铸轧 As a result of brazing the need for a thin bike belt frame, the finished product thickness shown in Table 1. The usual processes for producing such ribbons are: dosing - drying - smelting - ingot - flaking - heating - forging - heating - hot rolling - annealing - pickling - cold rolling - softening - pickling - finished. Shows that the process is very complicated. The newly developed solder and very brittle, not easy to shape processing, yield rate is very low, the calculation, the finished strip per ton of processing fee only 2,000 yuan. Therefore, although the solder has passed the identification, it is not easy to organize the production and timely promotion and application. To this end, we have adopted liquid direct casting and rolling