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我公司从日本石川岛播磨重工业公司引进的 IPF—90B 泵车曾发生二次滑阀衬垫(Packing,件号为 HH851261)损坏。开始认为可能是螺栓柠紧力矩未达到制造要求,也可能是滑阀部份间隙(参见图1中尺寸a、b 和 c)超过了制造厂的要求(要求小于10mm)。后来,严格按照厂方规定的要求进行安装,但使用1～2天后又损坏。为此,我们对损坏部件进行了详细的分析,从而找出原因及进行修复,修复后经半年多时间的使用,情况良好。一、损坏部位磨损部位发生在衬垫与基板下部框的接触处(见图1所示的 A 位置)。衬垫折断损坏部位见图2。
The secondary slide gasket (Packing, part number HH851261) has been damaged by our IPF-90B pump truck imported from Japan Ishikawajima Heavy Industries. Initially, it may be believed that the tightening torque of the bolts did not meet the manufacturing requirements. It may also be that some of the spool clearances (see dimensions a, b, and c in Figure 1) exceed the manufacturer’s requirements (requires less than 10 mm). Later, they were installed strictly in accordance with the requirements of the factory, but were damaged after 1 to 2 days of use. To this end, we conducted a detailed analysis of the damaged parts to identify the causes and repairs. After being repaired, it was in good condition after more than six months of use. First, the damaged part of the wear occurs in the contact between the gasket and the lower frame of the substrate (see the position A shown in Figure 1). Broken pads are shown in Figure 2.