冷轧 冷拉 纵剪 剪切扁钢的区别是什么?

冷轧 冷拉 纵剪 剪切扁钢的区别是什么?谢谢
2025-02-27 12:09:03
推荐回答(1个)
回答(1):

按生产阶段分类如下
热轧成品和最终产品
热轧成品和最终产品大多由半成品热轧而成也有一些是由初产品热轧得到的
冷轧拔成品和最终产品
冷轧拔成品和最终产品通常是热轧成品经冷轧拔而成的
热轧钢带
热轧钢带
热轧扁平成品经最后轧制后或再经酸洗退火随即卷成卷状的产品
根据钢带的实际宽度包括与轧制宽度无关的热轧纵剪钢带将热轧钢带划分为
热轧窄钢带
钢带的宽度小于
热轧窄钢带开卷后可切成定尺交货
热轧宽钢带
钢带的宽度不小于
冷轧扁平成品
冷轧扁平成品
不需要加热经冷轧后产品断面面积至少减少以上对于宽度小于的扁平成品以及
某些特殊质量钢可以包括到面缩小于的成品
冷轧扁平成品分为
冷轧薄板厚板
冷轧板按厚度进行分类
薄板厚度不大于见条电工薄板和条原板
厚板厚度大于
冷轧钢带
近似于热轧钢带的定义见条
冷轧钢带按轧制宽度分为
冷轧窄钢带
钢带的宽度小于在开卷后窄钢带可以切成定尺或以成叠方式交货
冷轧宽钢带
钢带的宽度不小于冷轧钢带按宽度小于交货时称为纵剪冷轧宽钢带
钢管中空型材和中空棒材
钢管
横截面是圆形或其他形状沿长度方向上是条状空心无封闭端的产品按其加工方法分为
无缝钢管
由钢锭管坯或钢棒穿孔制成的没有缝的钢管用铸造方法生产的管子称铸钢管
焊管
用热轧或冷轧钢板或钢带卷焊制成的钢管可以纵向直缝焊接也可螺旋焊接
中空型钢中空棒材
中空型钢用于结构或类似用途的钢管例如结构中空型钢
中空棒材用机械加工制成的无缝钢管具有较高的精确度可确保允许的最小尺寸偏差
最终产品
表面处理的扁平产品
除了与扁平产品的定义和分类相同以外产品表面上可以有永久性的镀层且应符合下列条件
镀层可以有
双面镀层
双面镀层厚度相等的称为等厚镀层
双面镀层厚度不相等的称为差厚镀层
单面镀层
根据镀层及表面处理的类型产品可做如下分类
金属镀层的钢板和钢带分为
镀锡钢板和钢带

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