∙ 第二次镦粗童装加盟政策拔长控制钢中夹杂物的形态，防止其成为片状，避免产生新的锻造缺陷；按锻件工艺尺寸要求，锻至成品尺寸。
岗位等级The cond uptting and drawing-out step controls the forms of inclusions in steel, avoids flaky inclusions and new forging fault and forges to the required product sizes
∙ Annealing, normalizing, quenching and tempering heat treatment in the overall "Four fire", which clo to quenching and tempering is often ud in conjunction, are indispensable.
退火、正火、淬火、回火是整体热处理中的“我的妈妈100字四把火感激的反义词”，其中的淬火与回火关系密切，常常配合使用，缺一不可。
∙ Heat treatment of steel as a whole generally are annealing, normalizing, quenching and tempering are four basic process.冬夜读书示子聿
钢铁整体热处理大致有退火、正火、淬火和回火四种基本工艺。
∙ The results show the main reason of crazing on forging surface are that copper content is over the standard and chemical composition′s match is not rational.
结果表明钢中铜含量超标、化学成分匹配不合理导致的“清炒海带丝铜脆”springy是锻件产生龟裂的根本原因。青岛博物馆
