How to choose lubrication-coolant process conditions for packaging steel strip rolling

How to choose lubrication-coolant process conditions for packaging steel strip rolling
The main process difference between 　　 oil and emulsion is: if the material to be rolled has high requirements on the surface and quality, it is necessary to use pure low-viscosity mineral oil as a lubricant.
　　 When high-speed rolling (up to 10 m/s), to ensure enhanced heat removal, emulsion lubricants are required.
　　 The high glossiness of the rolled material surface depends to a large extent on whether the pure mineral oil is well filtered, and whether the metal particles that fall into the oil during rolling will damage the surface quality of the rolled material And other metal impurities are removed. In addition, the use of active elements for fine filtration can remove the aging products produced in the oil.
　　 At present, the fine filtration of emulsion is still a complicated problem. In order to filter the emulsion, it is not economical to use an alluvial filter equipped with a fine granular auxiliary filter material because the filter is often clogged.
　　Using mineral oil as a lubricant, the friction conditions in the deformation zone can be changed by increasing or reducing the amount of lubricant entering the deformation zone. Using emulsion, due to the stability required by the process, it is not allowed to drastically change the amount of lubricant in the deformation zone.
　　 Emulsion is largely affected by external factors-other oils are mixed into the emulsion, metal particles fall into it, temperature changes, etc., so its service life is shorter than that of pure oil.
　　 Even so, the various advantages of emulsion, such as ensuring high-speed rolling, less fire hazard and air pollution, determine the use of multi-roll mill rolling.