Seamless Tube Mill

The round tube billet is pierced and rolled by the cross rolling method.

Material Steel grades: stainless steel, alloy structural steel assessment Main production steel grades:
Stainless steel grade: 304L, TP347, 316, 321, 2205, 2207, 904 as customer request
Alloy steel: T22, T91, P22, P91
High temperature alloy steel: Inconel600

Equipment composition
1. Entrance table of Piercer machine
2. Main drive of Piercer machine
3. Main base of Piercer machine
4. Exit platform Part I for Piercer machine
5. Exit platform Part II for Piercer machine
6. Electrical control system

Technical description
1. The composition and description of the entrance part of the punching machine:
The entrance table of the piercing machine is mainly composed of two parts: the entrance guide groove and the pusher. Its function is to receive the heated tube, which is pushed into the piercing machine by the pusher, and the auxiliary piercing machine bites into it.
The entrance guide groove is composed of a bracket, a fixed groove and a welding base. The center line of the bracket can be adjusted according to the tube billet specifications.
The pusher is composed of a pusher cylinder, a push rod, a pusher and so on.
2. The composition and description of the perforated main transmission part:
The main drive of the piercer is composed of a motor, a reducer, a triple box, a cardan shaft, and a coupling. Its function is to drive the roller of the piercing machine to realize the biting and piercing of the tube blank.
3. Perforated main base part:
The main frame of the piercing machine is horizontal, with two sets of rolls arranged horizontally, centralized transmission, and the guide plate is arranged up and down.
The main frame is composed of a frame, a roll device, a lower guide plate device, an upper guide plate device, and an entrance and exit guide sleeve device.
The roll rolling is driven by a main drive series consisting of a universal joint shaft, a main reducer, and a main motor.
The bearings are made of Havalo products.
4. A section of the perforated exit platform:
The first section of the perforated exit platform is mainly composed of a core roller device, a lifting roller table and a connecting base. Its function is to combine with the second stage of the outlet table and work closely with the piercing machine to complete the perforation of the tube blank. Before piercing, accept the ejector rod from the ejector trolley, and make the ejector (head) in the rolling position. During piercing, the core roller device hugs the ejector pin to ensure that the ejector head is located in the rolling center and guides the capillary tube to advance along the rolling line; after piercing, the ejector pin is pulled back by the ejector trolley, and the capillary tube is pulled out from the side of the rolling line. System thread.
5. The second section of the perforated exit station:
The second section of the exit platform is composed of ejector trolley, track, transmission device, buffer, lock frame, etc.
6. Electrical control system
The perforating unit can be divided into four parts in terms of function and structure, namely, the main transmission area, the main engine base, the inlet station area, and the outlet station area. Electrical control mainly completes the process control and adjustment of the entire unit, completes the process connection and interlocking between related equipment in the unit and its various related disciplines, so as to ensure that the entire unit equipment can be carried out normally, correctly and accurately in accordance with the production and process requirements. Corresponding orderly collaboration. Due to the complex process of the piercing unit, the reliability of the control system is required, and the system needs to be complete and reliable.
6.1 Power supply system:
The general power supply voltage of the workshop is 3-phase 380V, 50Hz.
6.2. AC electric drive mode
The adjustment motors of the left and right rolls, the pressing device motors, and the driving motors of the ejector trolley adopt ordinary
AC drive scheme.
6.3 Electric drive system
6.3.1 Electrical system
Power distribution cabinet 2pcs
Water resistance starting cabinet 1pcs
6.3.2 1 console
6.3.3 Main electrical components: Chinese Brand or customer request