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.

流态冷床法的基本原理是：利用一定速度的气流吹动沸腾床上的固体颗粒，使之处于悬浮运动状态，依靠煤气在流态层中的燃烧，使流态层具有要求的温度，线材从中通过时冷却，完成奥氏体的分解转变。

The basic principle of the flow state cold bed method is that the solid particles on the fluidized bed are blown by the flow of gas at a certain speed, so that it is in the state of suspended motion, depending on the combustion of gas in the flow state, the flow layer has the required temperature, and the wire is cooled when it passes through, and the and transformation of the austenite is completed.

轧钢机械辊道部分设计与制作,它是根椐轧钢设备的规格和轧制的品种而特定的,如机械化程度高的要求不一样,如大型轧钢厂须配备翻钢辊道,自动升降辊道和全自动步进式冷床,轧钢机一般包括主要设备（主机）和辅助机械（辅机）两大部分。

The rolling mill roller table is designed and made, which is specific according to the specificati*** of the rolling equipment and the variety of rolling, such as the requirements of high mechanization, for example, the large rolling mill must be equipped with a rolling mill roller, an automatic lifting roller and a fully automatic step cold bed, and the rolling mill generally includes main equipment (main engine) and auxiliary machinery (auxiliary machine). ) the two part.