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.
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。
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.
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。
The artifactitious process and mechanical properties of nature rubber (NR) and nitrile-butadiene rubber (NBR) using the fly-ash modified with sodium silicate as strengthening agent were studied.
以硅酸钠改性粉煤灰作为补强剂，研究了其补强天然橡胶(NR)、丁腈橡胶(nbr)的工艺及产品的性能。
It not only has reasonable price and convenient operation, but also can print exact teeth form with sodium alginate replacing the dentistry moulage material of rubber and gesso.
用海藻胶代替橡胶、石膏作牙科印模料，不仅价格便宜，操作简便，而且印出的齿形更准确。
It not only has reasonable price and convenient operation, but also can print exact teeth form with sodium alginate replacing the dentistry moulage material of rubber and gesso.
用海藻胶代替橡胶、石膏作牙科印模料，不仅价格便宜，操作简便，而且印出的齿形更准确。
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