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    二階連續(xù)退火新工藝研究及實(shí)踐

    Study and Practice of a New Process of 2-step Continuous Annealing

    • 摘要: 介紹了利用步進(jìn)式連續(xù)淬火爐-回火爐設(shè)備，通過(guò)控制加熱制度和冷卻速度，實(shí)現(xiàn)完全退火處理目的的二階連續(xù)退火新工藝。采用該工藝批量退火處理的1Cr5Mo（12Cr5MoI）、T9（12Cr9MoI）等合金鋼管材，其各項(xiàng)指標(biāo)滿(mǎn)足標(biāo)準(zhǔn)及使用要求。生產(chǎn)實(shí)踐表明：二階連續(xù)退火工藝技術(shù)能大幅度提高合金鋼、高合金鋼的退火熱處理效率，節(jié)約能耗和時(shí)間，有利于企業(yè)降本增效，具有推廣應(yīng)用價(jià)值。

       

      Abstract: Elaborated in the paper is the new process of 2-step continuous annealing to meet the purpose of full annealing treatment by means of the walking-beam continuous quenching furnace-tempering furnace system，and proper controlling of heating scheme and cooling velocity. The tubular products made of alloy steels like 1Cr5Mo（12Cr5MoI） and T9（12Cr9MoI） as batch-treated with this new annealing process have got all of their indexes in compliance with applicable specifications，and relevant application requirements. The production result shows that said new 2-step continuous annealing process technology has brought about such advantages as significant enhancement of the annealing heat treatment efficiency of alloy steels and hi-alloy steels，saving energy and operation time，and helping the maker to reduce costs and increase benefit，which is worth spreading up.

       

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