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STEEL BELT SERVICE

Service History

 

 

 

SPECIAL TERMS

Classification and general description of all jobs offered by Berndorf  Band and VFE Service Department.

2.1. Dismounting – Mounting: The pulling out of belts respectively the installation of steel belts into the customers machine ( press )
 

2.2. Cutting a belt : The cutting of an endless belt at any point ( preferably ) at the existing cross welding seam , considering that the belt will be welded again to endless condition later.


2.3.Tracking a belt:
This procedure happens after the belt installation. Herewith all the parts which influence the tracking of the belt ( pulleys, rollers, drums, sheaves and so on ) are to be adjusted in a way that the belt runs in stable / straight running ) conditions


2.4. Shot peening
: With this method we are able to correct cross curvature deformations of belts in Double Belt Presses during production . At Single Opening Presses no production is possible during this treatment due to the belt has to run continuously.


2.5. Flipping a belt:
When a cross curvature has to be removed ( shot peening is not sufficient any more ) the belt will be cut, dismounted , turned around inside to outside , mounted and re-welded again.


2.6. Flattening of dents:
When dents are to be flattened we try to work this plastic deformation as long as optimum flatness condition is achieved again ( professional hammering )


2.7.Leveling: Is the treatment of a belt with heavy cross curvature deformations with the 3 - roll leveling device


2.8. Flattening of waves:
We understand the correction of the cross curvature or longitudinal oriented deformations by using the flattening device ( 3 – roll leveling device )


2.9. Inserting of patches:
Many damages can be repaired by inserting patches with round shape only , because of hard deformations or cracks


2.10. Regrinding of scratches:
Scratches , which are the reason for future cracks are eliminated ( treated ) by local regrinding


2.11.Welding of holes:
Small cracked areas with missing material ( e.g. holes ) can be repaired by welding using filler wire to close the hole.

 

2.12. Renewing a cross welding seam: It is possible to renew a cross welding seam ( caused by fatigue or overstress ) only with considering the possible tensioning allowance of the press. The old cross welding seam will be cut out ( with approx. 50 – 100 mm belt material ) and the both belt ends re-welded again.


2.13. Inserting a belt section:
This will be done at large size damages or when the remaining tensioning allowance of the machine is not big enough anymore to cut out the damage and renew the welding seam.


2.14. Additional cross welding seam:
Is necessary when the damage has to be cut out over the whole belt width and the existing cross welding seam cannot be used ( too far away from the damage )


2.15.Inserting of belt edge strips:
When the belt edge damages in some areas are so heavily that many cracks appeared then we recommend to cut out the damaged area and insert a belt strip out of the available belt spare material .


2.16.Trimming:
Is the removal of a strip on the belt edge over the whole belt length. This is necessary when extreme damages over the whole length appeared, the tracking behavior is too bad but considering a smaller belt width of the belt after trimming !!

 

2.17.Shrinking: With this method single overstressed areas ( e.g. bubbles ) will be repaired by thermal treatment


2.18.Changing of wear plates:
We are able to deliver a new wear – or protection plate and to change the old one according to the customers requirements. ( in SOP )

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