冷拉生产-圣霖国际【创新发展】-冷拉

拉钢式和往复多爪推齿式两种冷床对于圆钢都不太适用，容易拉斜、滚乱。冷却圆钢（管坯）以使用链式冷床较好，上钢一厂、大连钢厂的650轧钢车间都采用链式冷床，两者所不同之处在于：上钢一厂的圆钢搁在台架上，链条拉着圆钢缓慢前进，由于圆钢单重较大，一般不会乱滚。大连钢厂的圆钢直接搁在链条上，前进过程中圆钢与链条无相对运动。两种链式冷床使用单位反映都较好。

The two kinds of cooling beds， pulling steel type and reciprocating multi tooth type， are not very suitable for round steel. Cooling round steel (Guan Pi) to use the chain type cold bed is better，冷拉厂家， the 650 steel mill of Shanghai steel factory and Dalian steel mill use chain cold bed. The difference lies in that the round steel in the first steel plant is on the bench， the chain pulls the round steel slowly forward， because the single weight of the round steel is larger， it will not roll out. The round steel of Dalian steel plant is directly placed on the chain， and there is no relative movement between round steel and chain during the progress. The use unit of the two types of chain cold beds is better.

首先确定所需压力的大小，主要取决于以下几方面：被矫钢材的品种、规格；待矫轧件的原始弯曲程度；待矫轧件的终轧温度；被矫轧件的机械性能；矫直温度等。

First，冷拉生产， determine the size of the required pressure， which mainly depends on the following aspects: the varieties and specificati of the straightened steel， the original bending degree of the rolled piece， the finishing temperature of the rolled piece， the mechanical properties of the leveled piece， the straightening temperature and so on.

使冷床区域产生空气自然对流，形成烟囱效应，造成冷床上圆钢下部冷却速度过快，出现冷却不均匀，影响了产品的质量。步进翻转冷床利用步距与齿距的差值，使圆钢在冷床上每移动一个齿距，冷拉，圜钢就滚动了一个角度，避免了圆钢在冷床上的不均匀冷却所造成的质量问题。

The cooling bed area of air natural convection， the formation of a chimney effect caused by the cooling bed bar lower cooling speed，圣霖国际冷拉， appear uneven cooling effect of the quality of the products. Step by step difference of inverted cooling bed and pitch， the bar in the cooling bed every movement of a pitch， round steel rolling an angle， to ***oid quality problems of round non-uniform cooling in the cooling bed caused by.