Veining defects have been effectively prevented and eliminated by improvement on gating system, especially by special additive to core sand and sinter coating on surface of sand core.
通过改进浇注系统，特别是采取在进、排气道芯砂中添加特殊抗脉纹添加剂及在砂芯表面涂刷烧结型涂料等工艺，有效地预防和消除了脉纹缺陷。
The metering & control for coating fuel is the key problem of fuel divided adding technique in sinter process.
外配燃料的计量和控制是烧结工艺燃料分加技术的关键。
The metering & control for coating fuel is the key problem of fuel divided adding technique in sinter process.
外配燃料的计量和控制是烧结工艺燃料分加技术的关键。
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