机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。
Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.
研究了石墨粒子的大小、分布、含量对机械性能及耐磨性的影响。
The effects of the size, distribution and content of graphite particle upon mechanical properties and wear resistance are studied.
l机械强度高、耐磨、适宜在线反冲洗，操作方便，运行成本低。
L High mechanical strength, anti-friction and suitable for on-line back flush, easy to operate and low cost.
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