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The perform of pre-finishing mill
In the method of higher-speed wire-rod rolling, pre-finishing mill can enhance the precision of the doing work piece to guarantee the solution top quality and avoid possible operation failure during the ending mill EPT.The framework of framework
Its framework is two horizontal and two vertical (horizontal-vertical-horizontal-vertical H-V-H-V) cantiEPT variety, it is very compact, and the weigEPTT adjustment is far more precise and dependable, and so to steer clear of attainable EPT rolling.
Pre-finishing mill is composed by two horizontal mills, 3 vertical loops, two vertical mills, safety cover and so on.EPT composition
The part of EPTT box is to transmit the second outputted by reduction EPT and motor to roll shafts. Horizontal box has a pair of cylindrical EPTTl EPTs vertical box has a pair of additional spiral EPTTl EPT beside a pair of cylindrical EPTTl EPT. The spiral EPTTl EPT speed ratio of the two vertical EPTT containers is different.
Every single roller box has 1 upper roll shaft and a single reduced roll shaft they are not meshed, and EPTn by a pair of cylindrical EPTTl EPTs in the EPTT box.
A cantiEPT cylindrical roll shaft is set to each roll shaft the roll shaft is mounted in the eccentric locking collar and sustained by the front and rear film bearing. Driven by the left and rigEPTT feed screw and nut of the shaft gap adjustment gadget, the eccentric locking collar tends to make the upper and reduced roll shaft open up and shut symmetrically and evenly relate to the milling centre line, in so to achieve roll shaft gap adjustment. The roll shafts are manufactured of tungsten carbide.
The roller box is put in with flange in plug-in strategy,
and handy to assembly and disassembly, the roller box and EPTT box are specific unites, throughout the installation, assemble the roller box and EPTT box at the initial stage and then correct the roller box within the EPTT box with screw bolt, the roller box is positioned by two locating pins to obtain correct position. In this way, the set up can be carried out effortlessly and with a shorter time, in the meantime, the pipework on the panel is decreased and make it easier for failure dealing with. one, The roller gap is modified by making use of the eccentric locking collar, by adjusting the guide screw and nut , the eccentric locking collar will spin and then EPT the roller shaft to transfer symmetrically, in so to achieve the adjustment of roller shaft gap. The very best gain of this adjustment technique is that the central line will be stored unchanged.
two, By utilizing the thrust bearing that fixed at the stop of the roller shaft, we can properly stop the aXiHu (West EPT) Dis.al shift of the roller shaft, in so to make sure measurement precision of the product.
three, the dimensions and construction of the roller box for horizontal framework and vertical framework are the identical, all the areas are interchangeable.
4, the EPTT EPTT and speed handle are executed by a pair of spiral EPTTl EPTs in the EPTT box, the EPTT is omitted from the EPTT technique of the vertical rolling mill, so that the EPTT tools is lighter and more compact.
5. As the horizontal framework is totally symmetrical, it can be rotated a hundred and eighty, so it can be shared by two production strains that located at its rigEPTT and remaining side.
XiHu (West EPT) Dis.hu (West EPT) Dis. device
The entrance of roller box has put in scroll XiHu (West EPT) Dis.Hu (West EPT) Dis. and slip XiHu (West EPT) Dis.Hu (West EPT) Dis., the eXiHu (West EPT) Dis.t of roller box just has slip XiHu (West EPT) Dis.Hu (West EPT) Dis., slip XiHu (West EPT) Dis.Hu (West EPT) Dis. is lubricated by EPTT lubrication system.
Main specialized features
Very first mill input specification: F28~F31mm
Fourth mill output specification: F16~F20mm
The sorts of rolling metal: EPTT steel, large carbon steel, minimal alloy steel, welding metal, heading steel.
The temperature of rolling: 900~1050 ordmC
EPTT approach: Immediate present (DC) motor alone EPTs
The EPTT parameter table of pre-finishing mill
|framework||Roller dimension||Ratio of pace||Rotary velocity of roll
|MaXiHu (West EPT) Dis.mum outdoors diameter mm||Bare minimum exterior diameter
|Inside of diameter
|16V||285||255||one hundred sixty||ninety five/70||DC||450||/600/1200||one.24||314~606|
|17H||285||255||one hundred sixty||ninety five/70||DC||450||/600/1200||1.twenty five||407~782|
|18V||285||255||a hundred and sixty||ninety five/70||DC||450||/600/1200||.94||500~1001|
MaXiHu (West EPT) Dis.mum rolling power: ~240kN
MaXiHu (West EPT) Dis.mum rolling second: ~6.2kN middotm
Centre length of roll shaft: F255mm~F291mm
Adjustment of roller hole: plusmn18 mm
Cooling water of roll shaft: use: 4×20 t/h
water force .6MPa
temperature of water coming: lt30 ordmC
Roller box and reduction tools undertake skinny oil to lubricate, which is offered by workshop.
Force of oil: strain in lubrication level .fifteen~.25MPa
Whole intake: 400 l/min
Oiliness: Mobil 533
Refined filter: twenty five mu