沟纹瓦具有特殊的软硬相间的旋转表面，较硬的材料决定了它的耐磨性，沟槽内较软的材料决定了它的镶嵌性，同时镀层的有效寿命也得到了提高；与三金属轴承相比，它的主要优点是具有极高的耐磨性能而又具有良好的摩擦性能。这种轴承能够满足某些往往相互矛盾的要求：要有足以承受最高油膜压力的强度，又要足够柔软以便在过热时减缓金属与金属之间的接触。 沟纹瓦由于没有磨蚀和沟槽能够部分泄压，磨损加剧就发生的较迟，仅及普通轴瓦的三分之一。此外，沟槽阻止了裂纹在镀层中的蔓延。当镀层从沟槽中局部消失时，润滑油膜间隙形状就发生了变化，此时轴瓦能够继续安全运转，不会发生咬合，并且轴瓦的磨损稳定在较低的速率。这些都对减少产生疲劳的危险性、延长有效使用寿命或加大单位负荷承载能力都有很大的影响。
Dafeng Industrial (Yantai) Co., Ltd. is located in the shore of the Yellow Sea, beautiful scenery and convenient transportation in Yantai. It is the only enterprise in China invested by Dafeng Industrial Corporation in China to produce bushes, bushes and thrust pieces. It is also the sixth foreign subsidiary after the United States, South Korea, Hungary and Indonesia. The total investment is US $38 million, the registered capital is US $20 million, and the existing staff is 416, occupying an area of 84000m2.
With advanced equipment and technology from Dafeng Industrial Co., Ltd., the company has rapidly improved the level of equipment automation. The product variety covers the market of medium and heavy, light and sedan. The annual production capacity has reached 60 million pieces, the products are complete and the quality is stable. The ISO/QS9000 international quality system has passed through the British UKS. Certification, Austria OQS ISO/TS16949:2002 quality system certification, is the domestic introduction of the world's famous engine axle supporting enterprises, for the United States Cummings, Dongfeng Cummings, FAW big Chai, Changan automobile, FAW car, the Great Wall automobile, FAW seahorse, Weichai, Shangchai, Chang Fu, Fukuda, Tianjin TOYOTA And other key engine factory supporting enterprises, Cummings series products are exported to Europe and the United States and Southeast Asia. The company has become the most comprehensive enterprise in the field of professional design, manufacture and sales of special sliding bearings and other accessories.
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