The heat treating process was improved for the malleable cast iron, in accordance with its long annealing period, coarse graphite, residual carbide, lower mechanical properties and limited serve life.
针对可锻铸铁退火周期长、石墨粗大、碳化物消除不彻底、退火工件力学性能低和使用寿命短的问题，对它的退火工艺进行了改进。
In flat ballas the D-band is smaller and the graphite peak larger than in coarse ballas.
在扁平的半刚石中，D带较小，而石墨峰比粗大的半刚石中的要大。
In flat ballas the D-band is smaller and the graphite peak larger than in coarse ballas.
在扁平的半刚石中，D带较小，而石墨峰比粗大的半刚石中的要大。
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