冷床下料装置将其收集成组送至输出辊道上, 再由输出辊道将其送到冷剪剪切成定尺成品。冷床的设计质量与安装精度直接决定着产品的终质量。

The cooling bed feeding device collect group sent to the output roller, the roller output will be sent to the cold shear into thespecified product. Design quality and installation accuracy of cooling bed directly determines the final quality of the product.

1.轧制过程中，冷床作业人员严禁上冷床，不准在辊道、齿条上行走。

2.生产中出现乱床等事故，必须等停轧以后进行处理清出。

3.冷床取样要使用专用工具进行取样。

4.作业中应注意观察周围的情况，无关人员严禁进入大冷床的***区域。

5.因乱床等事故造成的热废品，当班必须清出，确保冷床周围的环境整洁。

1. in the process of rolling, cooling bed workers strictly on bed, don't walk on the roller rack.

2. in the production of random beds, such as accidents, must wait after the stop rolling process to clear out.

3. bed to use a special tool for sampling sampling.

Should observe the situation around 4. operati, unrelated pers non dangerous region in the cold bed.

Waste heat 5. bed because of chaos caused by the accident, the duty must be clear, to ensure the surrounding environment clean bed。

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。当流态层温度为300℃时，奥氏体分解温度约为500℃左右，比铅浴淬火还低。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，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, 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.

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, 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.