Rolling mill is the equipment to realize the metal rolling process, generally refers to the equipment to complete the whole process of rolling production. Its working base is madeRollerRolling mill stand, bearing seat, bearing, independent coiling uncoiling or unloading platform, base, roll adjusting device, upper roll balancing device and roll changing device. The roll is the main working part and tool for continuous plastic deformation of metal on the rolling mill, which is mainly composed of roll body, roll neck and shaft head.

The roller bearing position of the reciprocating mill is worn, the wear depth is 0.7mm, and the journal is 500mm. The repair material has good machinability, meets the processing requirements of turning, milling, planing and grinding, and is not affected by thermal stress during the repair process. Moreover, the adhesive properties of the material are also very good. At the same time, in the process of repairing the worn surface, through surface oil baking, surface grinding, anhydrous ethanol cleaning and other treatments, the surface bonding area and bonding force of the material are increased to ensure that the material will not fall off.

For the repair of rolls, the advantages of Solay carbon nano-polymer material repair technology far exceed the above points. Strengthen predictive maintenance, with the help of Internet and sensor technology, assist users to carry out all-day online monitoring, intelligent early warning and diagnostic analysis, timely discover and eliminate equipment hidden dangers, prevent risks, and reduce equipment operating costs. Focusing on the core concerns of customers, with the help of new generation information technologies such as industrial Internet and AR virtual reality, we will build a product capability ecosystem of "data chain", "service chain" and "supply chain" to realize the development of user needs and solution capabilities.

ImpactRollerThe quality factors are as follows:

The methods and standards for checking the quality of rolls include: material porosity, WC grain size, total carbon and free carbon content, density, hardness, magnetic saturation strength, coercivity, bending strength, impurity content, etc. In addition, the processing accuracy and surface roughness of the roll are also considered.

Each index can reflect the quality and performance of the roll. The main influencing factors are: the dispersion of WC powder and Co powder in the mixture, particle size and particle size distribution, total carbon, free carbon, oxygen and iron content, etc.; The type and quantity of glue for pressing, the temperature and time of degumming, the temperature, time and atmosphere of sintering, etc. In addition, factors such as roll machining accuracy and diamond wheel quality have an impact on roll quality.

Rolls have been widely used in various fields of metal plastic processing. The roller is suitable for non-ferrous metals, steel, hot-rolled wire rod, pipe, cold-rolled foil strip, threaded steel, etc. But if there is customization or specification requirements, find reliable customization. The roll is formed by powder metallurgy of tungsten carbide and cobalt powder. Due to the high-speed and high-stress operation of the finishing mill, cast iron rolls and tool steel rolls are combined due to poor wear resistance, short service life of the roll table, frequent maintenance and loading and unloading, etc. Replaced by the roll, the efficiency is affected. They can no longer meet the requirements of finishing production, but the rolls have long service life and high wear resistance.

The rolling group has many levels. Even if the same finishing mill has different structures, different standsRollerThe corresponding roll parts are also different. High-speed wire rod mill rolls are mainly tungsten carbide rolls with cobalt as binder. Due to poor water quality, some continuous casting and rolling mills also use tungsten carbide rolls containing Co-Ni-Cr as a binder, and the cost is also low. The microstructure is composed of the matrix phase WC and the binder phase Co. With the increase of WC content, the hardness of cemented carbide rolls increases with the increase of WC content, while the toughness changes with the increase of binder phase content.