How to Adjust the Roll Gap of Steel Rebar Rolling Mill?

With the widespread application of the hot-rolled billet and the increasingly fierce market competition, the requirements for product accuracy and quality of hot-rolled enterprises are also increasing. Roll gap management is very important to control equipment precision. Because the requirements for the shape and specifications of steel are getting higher and higher, all parts of the rolling machine of the entire rolling mill production line must be accuracy.

Adjustment of Roller Gap

The adjustment of the roller seam is one of the important parameters of the rolling process. Its settings and adjustment are an important part of the rolling operation. In particular, the adjustment of new rollers or changes is particularly important.

Adjustment of rolling machine and mid-rolling machine roller gap: The roller gap of the thick and middle rolling machine is relatively large. Generally, the adjustment of the roller gap should be adjusted according to the depth of the pore groove. We should take the bounce value into consideration. For roughing rolling machine, the gap is generally about 1mm. For the middle rolling, it is about 0.5mm. The deepening of the measured groove bottom and the roller bomb jump is the red blank size of the actual rolling part.

The measurement of rolling parts in the production can be measured in the rolling motion with the measuring size of the rolling parts. At this time, there is a certain error in the measurement value. The adjustment of the adjustment should be measured multiple times.

The size of the rolling frame of thick and middle rolling racks is also a key value. The size measurement of this rolling part can be measured by 1# and 2# flying cuts or cuttings for measurement.

Adjustment of Fine Rolling Roller Gap

There are two methods of adjustment of the fine roller gap, namely, using the crushing roller and small round steel indentation method.

The ruler adjustment method is relatively simple, but at this time, the measuring roller value must also be considered the bounce of the rolling machine.

The small round steel indentation method is to use a soft round steel with a large amount of about 3mm larger than the roller seam. The rolling machine is empty at the speed of "dynamic". The thickness of the indentation is compared with the setting value of the roller seam, and repeatedly adjusted until the thickness of the indentation is equal to the set value of the set roller.

It is difficult to measure the size of the refined rolling parts in production. Generally, wooden marks are used.

Burning wooden marks is a simple and effective means of dynamic inspection of rolling parts. The method is to use a wooden strip to be opposed and pasted directly on the movement of the movement, and then take out the seal shape of the scorching wood, so as to determine the fullness of the rolling parts, guards and holes.

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Created on Jan 31st 2023 01:02. Viewed 253 times.

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