JPH0775818A - Method for removing rolling lubricating oil - Google Patents

Abstract

PURPOSE:To securely remove lube oil without producing a flaw and a pattern on the surface of a rolled stock and without badly influencing on the environment by sucking the lube oil attached to a roller and the rolled stock at a specific flow velocity or over with a nozzle on the outlet side of a multistage rolling mill. CONSTITUTION:The lube oil applied from the inlet side of the rolled stock of a rolling mill to the surface of a stock being rolled 4' by a lube oil spray nozzle 1, is brought out on the outlet side of the rolled stock through between a rolled stock 4 and a work roller 2. Accordingly, the lube oil is quickly and securely sucked at a flow velocity >20m/min by a sucking nozzle 10 connecting to a vacuum. The lube oil attached to a backup roller 3 via a backup roller 2, is collected between the backup roller 3 and a work roller 2, and is sucked by a sucking nozzle 9 in the same way. Also, when the lube oil collected between the backup roller 3 and the work roller 2 attaches to the rolled stock, it is sucked by a sucking nozzle 11 arranged toward both surfaces of the rolled stock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing rolling lubricating oil.

[0002]

2. Description of the Related Art Generally, in a rolling mill, a rolling operation is performed while applying a rolling lubricant to the surface of a material to be rolled directly or through a work roller from the rolled material feeding side. Its purpose is to lubricate between the work roller and the rolled material and to cool the work roller. The lubricating oil applied in this operation adheres to the work roller 2 or the backup roller 3 shown in FIG. 2 to form an oil sump 5 or 6, and this lubricating oil forms a dripping 7 and the rolled material 4 in front of the winder 8. It sometimes adhered to the top.

When the winding oil 8 is wound up with the lubricating oil attached as the dripping 7, the coefficient of friction between the winding materials becomes small due to the presence of the lubricating oil when the winding diameter becomes large. The material may be displaced in the width direction. Further, when a large amount of lubricating oil adheres, there is a problem that the amount of consumption of the lubricating oil increases and the working environment deteriorates due to oil dripping.

Due to such a problem, the rolled material 4 has been conventionally used.
In order to minimize the amount of lubricating oil that has adhered to the surface of the rolled material, the method of removing oil by pressing rubber on the surface of the rolled material at the rolling material outlet side of the multi-stage rolling mill The method of cutting was adopted.

[0005]

However, the conventional oil removing method of pressing rubber or the like has a drawback in that the rolled material comes into contact with the rubber or the like, resulting in scratches or patterns on the surface of the rolled material. In addition, in the oil removing method by spraying air etc., the lubricating oil blown off by the air becomes a mist and floats around the workplace, and the noise due to the air spray is large, so the working environment as a whole is There was a problem of getting worse.

The object of the present invention is to eliminate the drawbacks of the prior art, and to reliably remove the lubricating oil without causing scratches or patterns on the surface of the rolled material and without deteriorating the working environment. To provide a method.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention is to efficiently suck the lubricating oil by a suction nozzle at the place where the applied lubricating oil is accumulated, which improves the quality of the surface of the rolled material. And the work environment could be greatly improved.

[0008] That is, the above object of the present invention is a method of removing rolling lubricant applied as described above, which comprises a step of rolling while applying rolling lubricant to the surface of a material to be rolled from the rolled material input side of a multi-stage rolling mill. , Rolling lubrication oil accumulated between the work roller and the backup roller, between the work roller and the rolling material, and rolling lubrication adhering to the surface of the rolling material by the suction nozzle arranged on the rolling material outlet side of the multi-stage rolling mill. A method for removing rolling lubricating oil, which comprises sucking oil at a flow rate of 20 m / min or more.

Is achieved by

The suction velocity of 20 m / min or more in the present invention means that the flow velocity at the suction port of the suction nozzle is 20 m / min or more. If the flow velocity is higher than that, it is effective, but if it becomes too high, noise will be generated during suction. Therefore, it is desirable to appropriately adjust the flow rate within an effective range. Further, as the suction nozzle, by providing the suction nozzle 9 between the work roller and the backup roller and by providing the suction nozzle 10 between the work roller and the rolled material, a considerable effect can be obtained. By providing the suction nozzles 11 on both sides, the rolling lubricant can be reliably removed.

[0011]

EXAMPLE An example of a method for removing rolling lubricant will be described with reference to FIG.

When the material to be rolled 4'is rolled by the work rollers 2, the lubricating oil spray nozzle 1 applies lubricating oil to the surface of the material to be rolled 4'from the rolling material feeding side of the rolling mill. The applied lubricating oil is taken out to the rolled material outlet side through the space between the rolled material 4 and the work roller 2, and is rapidly fed at a flow velocity of 20 m / min or more by a suction nozzle 10 connected to a vacuum (not shown). And it is surely sucked. Further, the lubricating oil attached to the backup roller 3 via the work roller 2 collects between the backup roller 3 and the work roller 2, and is similarly sucked by the suction nozzle 9. Further, when the lubricating oil accumulated between the backup roller 3 and the work roller 2 adheres to the surface of the rolled material, it is sucked by the suction nozzles 11 arranged on both sides of the rolled material.

[0013]

According to the method for removing rolling lubricant of the present invention, by removing the lubricating oil without contacting the rolled material,
Since the method of sucking the lubricating oil at a flow rate of 20 m / min or more by the suction nozzle without causing scratches or patterns on the surface of the rolled material, the working environment is remarkably improved without oil scattering and noise.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a rolling lubricant removal method of the present invention.

FIG. 2 is an explanatory diagram showing an example of a conventional rolling lubricant removal method.

[Explanation of symbols]

 1 Lubricating oil spray nozzle 2 Work roller 3 Backup roller 4 Rolled material 4'Rolled material 5 Oil sump 6 Oil sump 7 Drip (oil adhered state) 8 Winder 9 Suction nozzle 10 Suction nozzle 11 Suction nozzle

Claims (1)

[Claims] 1. A method of removing rolling lubricant applied as described above in the step of rolling while applying rolling lubricant to the surface of a material to be rolled from the rolling material input side of the multi-stage rolling mill, wherein By the suction nozzle arranged on the outlet side, the rolling lubricating oil accumulated between the work roller and the backup roller, between the work roller and the rolled material, and the rolling lubricating oil adhering to the surface of the rolled material are flowed at a flow rate of 20 m / min. A method for removing rolling lubricating oil, which is characterized in that suction is performed as described above.