secondary refining 中文意思是什麼
secondary refining
解釋
二次精煉-
4. fine - blanking technology can obtain material deformation, deburring without secondary machining. 5. such as carbon steels, alloyed steels, stainless steels, aluminium alloy, yellow bronze, red bronze and bronze alloy material, compared with power refining or forging technology, fine - blanking products can obtain more strengthened constitution and against polishing when surface polishing
諸如碳鋼合金鋼不銹鋼鋁合金黃銅紅銅與銅合金等材質，利用精沖技術所產生的產品，與粉沫冶金或鑄造技術所產生的產品比較在表面拋光時能保證材料主體之較優結構強度與抗磨性。 -
The secondary refining technology of steel for heavy rail has been comprehensively discussed in view of processes, equipment and automatic control, which provides valuable references for the production of the steel for heavy rail
從工藝、設備、自動控制等方面對重軌鋼的爐外精煉技術進行了較全面的論述，對重軌鋼鐵生產具有較好的參考價值。
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