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金属制品厂生产过程中,钢丝铅淬火前需要进行加热,电直接加热钢丝是其中一种方法,而且是一种采用越来越普遍的较为先进的方法。本文对此种方法的电热计算推荐了几个基本公式,并对这些公式编制了简化计算图表,提出经验计算公式。文中根据公式图表、近似公式计算的结果,与生产实践数据进行了对比,最后将电直接加热钢丝的各种变量因素综合到一张“综合关系曲线图”上,不但从图上可直接观察到各变量相互变化彼此制约的关系,而且进一步简化了计算。
Metal products factory in the production process, the wire before the need for heating the lead quenching, electric direct heating wire is one of them, but also a more and more commonly used method of more advanced. In this paper, several basic formulas are recommended for the electrothermal calculation of this kind of method, and simplified calculation charts are compiled for these formulas, and empirical formulas are put forward. In this paper, according to the formula chart and the approximate formula, the results are compared with the production practice data. Finally, the various variables of the electric direct heating wire are integrated into a “comprehensive relationship curve”, not only can be directly Observed the relationship between the variables change each other constraints, but also to further simplify the calculation.