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Large three-roller plate operation procedures

A, conscientiously implement the relevant provisions of the "forging equipment general operating rules".

Second, conscientiously implement the following relevant supplementary provisions:

(a) check the quantity of oil storage tank of the hydraulic pressure station before work should be sufficient. Start the hydraulic station to check the oil pump is normal, valves, piping leakage phenomenon, the pressure should comply with the requirements, playing off the air in the open air valve system.

(2) the work be seriously.

1, are not allowed to be rolled or leveling have swelled weld or steel plate cutting burrs.

2, rolled in school or at ordinary times, do not allow steel skid phenomenon with work roll.

3, when rolling conical workpiece, should make the workpiece small round side pressure on the vertical roll of guide roll.

4, with block leveling plate, block roller hardness hardness shall not be higher than work.

5, rolled in school or at ordinary times, steel plate should be placed in the middle position of the work roll, offset plate thickness should be reduced accordingly.

6, when the maximum thickness of rolled steel, rolled down for the first time for the required rolling radius of the finished product and the ratio of the minimum radius of the finished product shall not be less than 2. Then applied to the 2 ~ 3 times into the required minimum radius of the finished product.

7, there was a lap steel plate bending rolls are not allowed to work, the oil pressure of the hydraulic pressure station unstable or moderate oil bearing temperature more than 60 ° C are not allowed to work.

8, is still in upper and lower work roll clamping workpiece, shall not start the flip agencies to turn over beam. Only the stop work roll wheel, the workpiece fell out on work roll, is allowed to start the flip agencies to turn over beam. Only overturned on the beam and bearing off after the release, to allow you to work roll become warped up.

9, remove the artifacts, should prevent the scale and dust fall into overturned beams of the bearings.

10, in addition to the throttle valve other hydraulic valves shall not adjustment without permission.

11, the operation people should closely cooperate with other staff. Must have the specialist command, the command signal to clearly understand.

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