Summarize the advantages and basic characteristics of cold rolling mill

A cold rolling mill is a machine that uses pressure to process metal materials. The cold rolling mill uses a motor to drag the steel bar, and the load-bearing roll and the work roll of the cold rolling mill jointly apply force to the two sides of the steel bar. It is a new type of steel cold rolling processing equipment. The cold rolling mill can achieve the purpose of rolling cold-rolled ribbed steel bars of different diameters by changing the size of the gap between the two rolls.

The cold rolling mill can process hot-rolled wire rods and hot-rolled coils with a diameter of 6.5 mm to 12 mm into cold-rolled ribbed steel bars with a finished diameter of 5 mm to 12 mm. The cold-rolled ribbed steel bar rolled by the cold rolling mill is a replacement product of the cold-drawn low-carbon steel wire in the prestressed concrete member. In the cast-in-place concrete structure, the grade I steel bar can be replaced to save steel. It is one of the better cold-worked steels of the same kind. If speed regulation is not required during the rolling process of the cold rolling mill, an AC motor can be used; if speed regulation is required during the rolling process of the cold rolling mill, a DC motor can be used.

Lubrication of cold rolling mills has three parts:

1. It is the gear lubrication of each gearbox, some have a lubrication system for each main gearbox, and some share a lubrication station for several main gearboxes;

2. It is the lubrication of the bearing, some are grease lubrication, and some are oil and gas lubrication;

3. It is the process lubrication during rolling.

The bearings selected for the special reducer for cold rolling mills are generally selected from FAG. Advantages and characteristics of cold rolling mills: Cold rolling mills are made by cold-drawing and cold-rolling grade I hot-rolled Q235 round steel to produce spiral-shaped steel bars. mechanical equipment. In the process of rolling cold-rolled ribbed steel bars, the cold-rolling mill equipment can simultaneously cold-work the warp and weft directions of the base metal. On the premise of retaining the relative balance and stability of the product in the central area of ​​the original cross-section, it can improve the resistance to position and compression. At the same time, it still retains sufficient elongation properties, so that the geometric parameters of cold-rolled ribbed steel bars (rolling thickness, section width-to-thickness ratio, area reduction and pitch) and four material indicators (tensile strength, conditional yield value) , elongation and cold bending) can be used in important industrial and civil buildings with a safety level, saving steel and reducing building prices. The cold rolling mill is composed of a working structure and a transmission structure. Among them: 1. The working mechanism is composed of frame, roll, roll bearing, roll adjustment mechanism, guide device, rolling seat and other parts. 2. The transmission mechanism is composed of a gear frame, a reducer, a roll, a coupling shaft, a coupling and other parts.

Post time: Mar-11-2022