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钻探工具产品一般都用中碳合金结构钢制造,经调质处理使用。过去我厂对该产品都是采用整体油淬火工艺,每年要消耗柴油20t以上。由于柴油供应紧张,经常影响生产,而且淬火时油易老化导致产品质量不稳。为改变这一局面,我们于1975年开始进行低浓度聚乙烯醇溶液代油整体淬火工艺的试验研究,经过近八年的努力终于取得了成功。于1982年通过了厂级鉴定并正式投入使用。
Drilling tools products are generally made of medium carbon structural steel, the quenched and tempered use. In the past I plant on the product is the use of the overall oil quenching process, annual consumption of diesel 20t or more. Due to the tight supply of diesel, it often affects the production, and the aging of the oil easily leads to instability of the product quality. In order to change this situation, we started the experimental study on the overall quenching process of substituting oil with low concentration polyvinyl alcohol solution in 1975. After nearly eight years of hard work, we finally succeeded. In 1982 passed the factory level appraisal and formally put into use.