The vibration fault and its causes of the steel rolling equipment rotor show that the rotor is always in operation during the construction of rolling machinery, and the vibration fault is very common. There are three main reasons for the vibration fault. First, the rotor speed should be kept at a high state to meet […]
Failure Analysis of Vibration Fault of Rolling Mills Read More »
By definition, ingots or billets are difficult to deform and process at room temperature. Generally, they are heated to 1100~1250 ℃ for rolling. This rolling process is called hot rolling. The temperature of the hot rolled plate is high, so the deformation resistance is small, and large deformation can be achieved. Take the rolling of steel plates as an example. Generally, the thickness of the continuous casting slab is about 230 mm, and after rough rolling and finishing rolling, the final thickness is 1~20 mm. At the same time, due to the small width-thickness ratio of the steel plate and the relatively low requirements for dimensional accuracy, the shape problem is not easy to occur, and the convexity is mainly controlled. If the structure is required, it is generally realized by controlling rolling and cooling, that is, controlling the starting temperature, finishing temperature, and crimping temperature of finish rolling to control the microstructure and mechanical properties of strip steel.
Hot Rolled Steel Plate and Cold Rolled Steel Plate Read More »
The short stress rolling mill is a profile rolling mill with a short stress loop of the working machine. The stress loop of the working stand refers to the neutral line of the elastic deformation section of the stressed parts in the rolling mill after the rolling force is applied to the rolling mill. The length of the stress loop is the sum of the lengths of the stressed parts in the rolling mill. The elastic deformation produced by each stressed part in the rolling stand is directly proportional to its sectional area and inversely proportional to its length. The shorter the stress loop in the stand, the smaller the elastic deformation produced, the greater the stiffness of the rolling mill (see the stiffness coefficient of the rolling mill), and the higher the accuracy of the rolled products.
Short Stress Rolling Mills Read More »
Mill oll is the main working part and tool for continuous plastic deformation of metal in the rolling mill. The roll is mainly composed of the roll body, roll neck, and shaft head. The roll body is the middle part of the roll actually involved in rolling metal. It has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the frame through the bearing seat and the screw-down device. The shaft head at the driving end is connected with the gear seat through the connecting shaft to transmit the rotating torque of the motor to the roll. The rolls can be arranged in the form of two, three, four, or more rolls in the mill frame.
What Should Be Paid Attention to in Mill Roll Classification and Selection Read More »
Reducing roller energy consumption can effectively reduce the production cost and increase the benefit. At the same time, it can effectively improve the mill operation rate and ensure the surface quality of hot rolled products. In the production of hot rolled strip, the consumption of roll is especially huge. Therefore, it is of great significance to find out the measures to reduce the consumption of roll and improve the service life of roll.
Effective Ways to Reduce Rolling Mill Roller Consumption Read More »
The vibration fault of rolling mill equipment rotor and its causes show that the rotor is always in running state in rolling mill machinery construction, and the vibration fault is very common.
Fault Analysis of Rolling Mill Equipment Read More »
The development of the primary rolling mill has gone through three stages. By the early 1970s, the roll diameter of the mill has increased to 1500mm. Since 1959, China has designed and manufactured the blank opener. At present, 700mm, 750m, 850m and 1150M primary rolling mill have been made. Since 1980s, continuous casting technology has been developed greatly.
Development of rolling mill Read More »
With the continuous development of society, the metallurgical industry occupies an increasingly important position in the manufacturing field, many fields will be involved in metallurgy, and the application of roller in the metallurgical industry is more and more widely. The quality of the rolling mill roll affects the normal operation, effect and efficiency of the machine tool.
Rolling Mill Roll Classification Read More »
The rolling mill is the key equipment for rolling billets or rolling pieces. It is suitable for non-ferrous metals and ferrous metals. It is widely used in metallurgy, metal processing, building materials and other industries for hot or cold rolling of metal rollable materials.
How to Choose A Suitable Rolling Mill Equipment? Read More »
Roll is a tool to produce plastic deformation of metal. It is an important consuming part to determine the efficiency and quality of rolling mill. Roll is an important part of rolling mill in rolling mill. The pressure produced by a pair or group of rolls is used to roll steel. It mainly bears the influence of dynamic and static load, wear and temperature change during rolling.
Common Problems of Roller Read More »