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发布时间:2020-12-30 05:34:00 作者:圣霖国际
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,利用装置自身重力,从而实现角钢的稳定下钢,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 gravity in order to achieve the stability of angle steel, smoothly 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,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.
中型轧钢车间生产的各种钢材,经轧钢机轧制后由热锯机(或剪切机),切成定尺长度,还需要冷却到常温,再进行矫直。轧制后的热轧件冷却时,由于连续生产,一般都是在缓慢的横向移动过程中逐渐冷却的。这种使轧件横向移动并冷却的设备,叫做冷床。
All kinds of steel produced in medium rolling mill are cut by hot saw (or shearing machine) after rolling mill, and it is cut into length of fixed length. It also needs to be cooled to normal temperature and then straightened. After rolling, the hot rolled parts are cooled down gradually because of continuous production. The equipment for rolling and cooling the workpiece is called cold bed.
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