粉末冶金工艺的闸瓦是在其他制动材料难以适应的情况下而使用的一种产品。制动是铁路运转业务的关键。任何可能的改进都应给予考虑,但正式使用之前必须要经过全面的检验。这种粉末冶金工艺的产品——烧结闸瓦现已达到应该考虑其应用业进行现场试验的阶段。 Powder metallurgy brake shoe is difficult to adapt to other braking materials used in the case of a product. Braking is the key to railway operation. Any possible improvements should be considered, but they must be thoroughly tested before being officially used. This powder metallurgical product, the sintered brake shoe, has now reached the stage where it should be considered for field testing in its application.