Application And Maintenance Of Strip Steel Correction System In Cold Rolling

In view of the problem of strip deviation in continuous strip production line, the correction principle of CPC and EPC strip rectification system produced by EMG Company in cold rolling production line is analyzed and combined with the actual situation of on-site production. Inductively sorted and optimized the control, summed up the main points of its system maintenance, and has certain guiding significance for the daily maintenance of this type of strip rectification system.

 In the normal production process of the continuous strip production line, the medium hydraulic equipment of the strip moves the rectifying roller. In the continuous annealing furnace, the high temperature toroidal line should completely coincide with the center line of the whole production line or in a certain environment, etc., generally adopt servo control. The servo motor and the servo motor are within the allowable lateral offset of the correcting roller. Due to the movement of some strip steel itself; EPC correction system is generally used for the coiler to ensure the coiling (for example, the winding of the previous process is not uniform, the strip has a boring curve, the wave shape, the edge of the steel coil is neat, avoiding Misalignment occurs. The front and rear strips of the weld are misaligned, etc.) or field equipment reasons (for example, 1.1 CPC correction system and control principle, the unwinding of the unwinder is not upright, and the axial pressure of some press rolls is uneven), although CPC There are some differences in the application location, which often causes the strip line to deviate from the center line of the production line, but its system composition and control principle are basically similar. The following will cause the strip to run off with P. For example, the movement speed (proportional) type CPC correction system of this type of production line strip is very fast, and often reaches more than 100m/min. In this way: CPC correction system is mainly composed of inductive sensor and digital control.

In the process of high-speed production, once the strip is deflected, it will be composed of extremely short, linear displacement sensor, servo valve and rectifying roller. It is a schematic diagram of the composition of the scraping CPC correction system caused by considerable damage to surrounding machinery and electrical equipment during the time. Measure the bad surrounding equipment in the center of the metal strip, such as the side wall of the pickling tank, the wall of the annealing furnace, etc. Even the inductive sensor unit is usually installed symmetrically in the center of the unit. There may be a broken belt accident, resulting in long-term parking. , on the production side. Each sensor is used to measure one edge of the strip, which is very loud.

Therefore, in the continuous strip production line, in order to ensure that one of the generators is used as a transmitting sensor, the other one is used for the high efficiency and fluency of the receiving product, ensuring high quality and considerable sensor. Each pair of coils has a directional emptiness, and the normal and effective operation of the strip rectification system plays a decisive core transformer. Metal strips act through these sensors and receivers.