Brief introduction of tube cold rolling machine

Cold-rolled pipes are widely used in various fields of national economy because of their superior characteristics. The cold-rolled pipe has fine grain structure and superior mechanical and physical properties. Cold rolling machine has a great ability to correct the deviation of the original pipe blank wall thickness, accurate geometric size and high surface finish; The pass deformation is large, which can reach 70% ~ 90%; Using cold rolling to produce pipes can greatly reduce intermediate processes, such as: Heat treatment, pickling, heading, straightening, etc., reduce the consumption of metal materials, fuel, electric energy and other auxiliary materials and manpower; Thin-walled, extremely thin-walled and high-quality pipes with no scratches on the inner and outer surfaces can be produced by cold rolling. It can effectively roll various steel pipes and non-ferrous metal pipes with high alloy and poor plasticity.

The research of tube cold rolling machine in China started in the 1960s. In 1960, the LD30 three tube cold rolling machine designed by China Heavy Machinery Research Institute Co., Ltd. (referred to as China Heavy Institute, formerly Xi 'an Heavy Machinery Research Institute) was successfully put into production. After more than 50 years of development, China has formed two series of tube cold rolling machine products, LG (two-rolls) and LD (multi-rolls), which are widely used in China's metal pipe processing industry.