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拉钢式冷床，其特点是利用单爪绳式或链式拉钢机，横向成批拖运轧件。这种拉钢机往往配备有潜行装置，以达到有选择性地拖运某一根（束）轧件的目的。潜行装置有两种形式：一种是杠杆式，另一种是滑块式。

Pulling type cooling bed is characterized by single rope or chain machine, horizontal rolling batch haulage. This kind of steel are often equipped with stealth device to selectively hauling a workpiece to root (beam). There are two forms of the lurking device: one is leveraged, the other is a slider.

轧件在冷床冷却过程中由于冷却水不能均匀分布在型钢表面，头部冷却速度较快，弯曲，形成浴盆状，使腹板上的积水不能流出，导致上表面收缩率明显大于型钢下表面，产生上弯。

为消除不均匀变形，首先应该使2辊压下量足够大，满足型钢塑变要求。消除型钢原有变形，达到统一的变形的目的。

Rolling in bed cooling process due to the cooling water can not be uniformly distributed on the surface of steel, the head of the fast cooling rate, the first bend forming tub shaped, make web water can not flow, resulting in the surface shrinkage rate was significantly higher than that of the steel surface, due to bending.

In order to eliminate the uneven deformation, first of all, the 2 roller should be large enough to meet the requirement of the type of steel plastic change. The original deformation of the steel has reached the goal of uniform deformation.

近年来, 为适应轧制制度变化繁多, 产品规格多、产品及高产量等要求, 我院认真消化、吸收国内外***技术, 设计了一套具有同类水平的高速度、多品种、高质量的小型型钢和棒材冷床设备, 年产棒材可达90万吨, 已达到了国外同类设备的***水平。

In recent years, in order to adapt to various changes in rolling system, many specificati, high quality products and high output, our hospital has carefully digested and absorbed advanced technology at home and abroad, designed a set of ***all steel and bar cold bed equipment with high speed, variety and high quality with the same kind of International advanced level. The annual production of rod can reach 900 thousand t, which has reached the advanced level of the same kind of equipment abroad.

潜行装置有两种形式：一种是杠杆式，另一种是滑块式。带潜行装置的拉钢式冷床很大优点足冷床床面利用率可达60%，可以自由地储存轧件，机动性能较好。

There are two forms of stealth device: one is lever type, the other is slider type. The biggest advantage of the pull steel cooling bed with stealth device is that the utilization rate of the cold bed can reach 60%, so that the rolling parts can be stored freely and the maneuverability is better.