本发明由于采用了分段加热，分类回收的方法，可降低烟气的后处理成本。
The invention adopts the zone heating and classified collection method, and the after treatment cost can be reduced.
认为半固态锭料的成形温度必须控制在较小的范围内，且锭料温度须保持均匀，建议采用中频加热和分段控制温度；
The author suggested that the forming temperature of semi-solid ingot should be controlled in a small range and kept equably.
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