| 简介 |
PROBLEM TO BE SOLVED : To provide a pump for jetting a fuel, having improved reliability, durability and abrasion resistance at an inexpensive manufacturing cost. SOLUTION : In this pump for jetting a fuel by sending a fuel from a fuel tank under pressure, raising pressure and supplying the fuel to a jetting nozzle, sliding members of a driving shaft 1, a plunger 6, a roller 7, etc., are composed of a sintered silicon nitride comprising 7β-silicon nitride crystal phase as a main component, containing a grain boundary phase consisting of a rare earth element, aluminum, oxygen and nitrogen, having the ratio of the maximum peak of silicon nitride and the peak (521 cm-1) of Si detected by Raman spectroscopy of 0.2-3. |
客服热线：
手机版
二维码
