The conclusion drawing from the the test o the wear resistant boron -copper-rare-earth cast iron is as follows:During the 60-hour testing arne,no cylinder snapping occures while the honing texture exists.

• 对硼-铜-稀土耐磨铸铁耐磨性试验结论是:试验累计时间60h,在试验时间内未出现咬缸现象,试验后缸壁珩磨网纹存在,与同类缸体相比具有较好的抗咬合性、耐磨性。