丁钠橡胶是以碱金属钠作为催化剂，由丁二烯单体进行本体聚合的产物。它是聚丁二烯系列产品中较早工业化的一个品种，具有良好的耐磨和耐屈挠性能，但弹性低，粘合力小，耐寒性能较差，主要用于制备工业胶板、胶管、胶垫、挤出制品和胶鞋等，也可应用于机械、石棉加工和电机制造等工业领域。
本文对用石蜡取代丁钠橡胶作硬质合金生产成形剂的优点及其不足进行了论述。
In this paper, the benefits and deficiencies of substituting paraffin for butadiene sodium rubber as the lubricants used in the production of cemented carbides are studied.
工艺试验表明，该成形剂的应用工艺与丁钠橡胶工艺基本相同，因此便于推广应用。
Technological experiments have shown that the binder is basically of the same application technology as that of butyl sodium rubber. Therefore, it is easy to be spread to practical use.
标准配置为机加工黄铜结构，镀铬镍阀体，乙丙橡胶止回阀瓣总成和丁钠橡胶密封，不锈钢弹簧和压力板。
Machined brass construction, chrome nickel plated body, EPR rubber check disc assemblies and Buna 'n' seals, stainless steel springs and pressure plates are standard.
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