.Φ17mm～ Φ720mm machine

Ancillary equipment for seamless steel pipe production line

1.the characteristics of the reducing machine :
     Reducing mill is the seamless pipe production line located in the piercing machine,after the tube rolling machine for further rolling,extending,finishing the key equipment.The tension reduction process is a continuous rolling of the waste tube in a series of roll stands arranged side by side.In this process,the appropriate hole pattern is used to continuously reduce the diameter of the waste tube.At the same time,with the adjustment of the roll speed ratio in the series of stands,it is possible to obtain a change in the intended diameter and wall thickness.

2.the main structure of the reducing machine:
    Rack assembly,the main drive,square rack,roll car,car transmission,push and pull institutions,import and export of roller device and so on.

3.the classification of the reducing machine:
    Reducer classification,according to the size of the tension coefficient between the rack is divided into strong tension reducer and micro-tension reducer:
    1)Micro tension reducing machine
    Micro-stretch reducer refers to the number of roll stand less(less than or equal to 14),in the roll stand to establish a smaller tension coefficient reducer.
    strong tension Expanding machine
    Strong tension reducer refers to the number of roll stands(usually a large number of 14),to establish a relatively large tension coefficient between the roll stand reducer(generally more than 0.75);seamless steel pipe production line Reducing mill roll rack number is many more.In front of the piercing machine,rolling machine need less spare tools,you can use less shortage of standard pipe to product different specifications of the finished pipe.
    According to the different forms of tranamission is diviede into separate DC transmission and concentrated differential transmission two:
    1)DC single drive
    Each rack by a separate DC motor drive,simple structure,flexible speed adjustment,wide range,product specifications,production capacity.
    2)concentrated differential drive
    Centralized transmission speed rigidity is good,that is,when the motor bite,the motor speed,but only affects the reducer rolling speed,without changing the ratio between the speed of the rack.Electrical control system is relatively simple,less investment,compact structure.Simple operation,easy maintenance.