Impact of Unequal Heating Temperature on Rolling Production
In many cases, in order to obtain higher product quality, the temperature of the billet before it is rolled must be evenly controlled. But when the heating temperature is uneven, a variety of unexpected economic losses will occur. The uneven heating temperature will even cause the downtime of the entire rolling production process, which affects the entire rolling production system.
First of all, it should be emphasized that when the heating temperature of the billet is uneven, it will cause uneven metallurgical structure in the rolled steel product. If the temperature of the billet is unevenly heated and the billet rolls unevenly into the steel strip or plate, the metallurgical structure of the steel strip or plate is not uniform. There is a phenomenon of mixed crystal precipitation in the product. This phenomenon will have a very obvious effect on the subsequent performance of the rolled steel. The different thermal expansion rates of the different parts of the steel strip or plate will cause cracks and other problems in the product.
Secondly, when the heating temperature of the billet is uneven, the product quality is affected. If the uneven heating temperature results in uneven metallurgical structure of the rolled steel product, the performance of the rolled steel will be affected, and even if the product can pass the testing after the rolling process, the use of it will be very unsatisfactory. The uneven heating temperature will also affect the dimensional accuracy of the rolled steel product, resulting in dimensional deviation of the product.
Finally, the uneven heating temperature will also cause damage to the rolling equipment. When the rolling speed of the equipment is increased, the power consumption of the equipment is increased and the wear of the equipment is also accelerated. If the temperature of the rolling billet is uneven and the rolling speed is related to temperature, then the equipments engine load will not be stable, which will cause the equipment to be overloaded, which will lead to excessive wear of the equipment, or even damage the equipment.
To sum up, uneven heating temperature will seriously affect the quality and production efficiency of steel production. The key is to accurately measure the temperature of the forging billet before forging, and strictly control the uniformity of the temperature. On the one hand, it can ensure the uniform crystal structure of the rolling steel product; on the other hand, it can ensure the quality and accuracy of the rolled product, and reduce the damage caused by excessive power consumption.
