针对角钢试生产初期冷床下钢发生倾翻的特点及原因，作业区技术人员指导岗位自己设计制作了防止角钢倾翻装置，通过冷床长度的测量及冷床裙板至冷床齿条距离，选定防止角钢倾翻装置的位置及长度，冷床设备，利用装置自身重力，冷床设备厂，从而实现角钢的稳定下钢，冷床报价，顺利进入冷床。
The needle angle steel trial production of steel bed early occurrence characteristics and causes of the tilting of the work area， the guidance of technical staff their own design to prevent angle tilting device， by measuring the cooling bed length and bed apron and bed rack distance， the selected angle to prevent tipping device and length of use of the device"s own gr**ity in order to achieve the stability of angle steel， **oothly into bed.
当流态层温度为250℃时，奥氏体分解温度为550～600℃，同铅浴淬火相似；当流态层温度为300℃时，冷床，奥氏体分解温度约为500℃左右，比铅浴淬火还低。
When the temperature of the flow layer is 250 C， the austenite decomition temperature is 550~600， similar to that of lead bath quenching. When the flow state temperature is 300， the austenite temperature is about 500 C， which is lower than the lead bath quenching.
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.
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