Precision cast iron platform: According to the implementation of the national standard verification procedures, namely, 0, 1, 2, 3 four grades.
铸铁平台精度：按国家标准计量检定规程执行，分别为0、1、2、3四个等级。
The high temperature wearing was due to the fatigue delamination of the oxide, the lump wear debris were revealed on the precision cast steel, and the bar wear debris on H13 steel.
高温磨损机理为氧化物疲劳剥落磨损，精铸热锻模具钢磨损磨屑为厚大块状，而H13钢磨损磨屑以条状为主。
The high temperature wear property of a new type precision cast hot-forging die steel was studied, and compared with that of H13 steel. The mechanism of the high temperature wear was discussed.
研究了新型精铸热锻模具钢的高温磨损性能，并与H13钢进行对比探讨高温磨损机理。
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