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-- Corrugating Problems --
Cracking of Flutes Leaned Flutes High & Low Flutes
High Lows Crushed Flutes De lami nation
Blisters Uneven Pressure Gelling of Gum
Rotary Sheet Cutter Cross Cutting Problems in Pasting
Uneven Gumming Irregular Cutting Loss of Caliper
Rotary Creaser Sheet Cracking Rough Cutting
Machine Vibration Eccentric Slotter Ragged Slots
Flexo Board Printer Cross Feeding Shifting of Sheet
Worn Out Front Portion Punching Machine Score Cracking
Combined Rotary Creaser Slotter Length Variation


CRACKING OF FLUTES

One of the problems faced by the corrugator is cracking of flutes.This can occur in two ways.

Cracking along the entire length or cracking at ends.

Along entire length

flutes.gif (62296 bytes)

Causes
Solutions
Paper is brittle Paper should be tested to ensure that it is not brittle
Excess pressure on flute rolls Reduce the pressure of the flute rolls by adjusting the handwheels
Excess tension on paper roll due to tight brakes being tight This tension can be reduced by slightly loosening the brake

This defect occurs in the corrugating machine due to flattening of flutes rolls , at the ends.
At ends

flutes1.gif (27824 bytes)

Causes Solutions
Continuous use of smaller width paper on a machine designed for bigger width. The teeth at the ends experience metal - to - metal contactand get flattened over a period of time. Now if you use bigger width paper on this machine, there will be cracking
Regrind the flute roll

 

 
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3/5 Ply Automatic Board Plant

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Corrugating Problems Solutions
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Paper Testing
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How is corrugated made?
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Why Corrugated?
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PAPER BOARD MACHINERY COMPANY
Regd. Office :
115, D.L.F. INDUSTRIAL AREA PHASE - 1, FARIDABAD - 121003, HARYANA (INDIA)

Contact Numbers :

Tel : + (91) - (129) + 3295771, 4107814 Telefax : + (91) - (129)-2275894
Mobile : 0091 - 9810256789, 9811071540, 9818056789

E-mail :

paperboard@gmail.com bharatnagpal@msn.com

URL :

www.corrugatingmachinery.com www.pbmc.in

Associated Units:

NIWA CORRUGATING MACHINERY CO.

NAGPAL CORRUGATING INDUSTRIES

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