冷床是中小型棒材車間不可缺少的輔助設備之一。它的功能是將軋機軋制后經(jīng)飛剪剪切成倍尺長度的棒材, 輸送并卸到冷床齒條上冷卻, 使其溫度由900℃降至100 ～ 300℃。

The cooling bed is one of the auxiliary equipment in the small bar workshop indispensable. It is the function of the bar rolling mill after double length flying shear, conveying and discharging to the cooling bed rack, the temperature 900 DEG C to 100~300 C.

近年來, 為適應軋制制度變化繁多, 產(chǎn)品規(guī)格多、產(chǎn)品及高產(chǎn)量等要求, 我院認真消化、吸收國內(nèi)外先進技術(shù), 設計了一套具有同類水平的高速度、多品種、高質(zhì)量的小型型鋼和棒材冷床設備, 年產(chǎn)棒材可達90萬噸, 已達到了國外同類設備的先進水平。

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 small 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.

流態(tài)冷床法的基本原理是：利用一定速度的氣流吹動沸騰床上的固體顆粒，使之處于懸浮運動狀態(tài)，依靠煤氣在流態(tài)層中的燃燒，使流態(tài)層具有要求的溫度，線材從中通過時冷卻，完成奧氏體的分解轉(zhuǎn)變。

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.