HVSMobile

HVSMobile performs a variety of calculations relevant to the Metals Industry.

I-Units Flatness

Measurement of strip flatness is generally quantified by the term I-Units. I-Units flatness is calculated using inputs of wave height and wave length. Wave height is the actual (or approximate) dimension of the vertical distance a strip of material stands off a horizontal surface while the strip of material is not under tension. Wave length is the actual (or approximate) horizontal distance from one peak of wave height to the next peak of wave height.

I-Units flatness does not change with regard to the type of material (steel or aluminum). This app will calculate I-Units flatness using inputs in imperial units (inches) or metric units (mm).

Coil Weight & Coil Length Calculator

Use this app to calculate coil weight and coil length for steel coils and aluminum coils. Coil weight and coil length values may be calculated using various inputs:

Coil weight of steel or aluminum coils using diameter and width dimensions

Coil length of steel or aluminum coils using diameters and thickness

Coil length of steel or aluminum coils using weight, diameters and thickness

Coil weight per unit width of steel or aluminum coils

Coil Run Time

Chock Bore Wear Allowances

Chock bore wear allowances should be measured in order to check the maximum out-of-round chock bore wear allowances and to check the maximum oversize chock bore wear allowances in reference to the bearing outside diameter.

Chock bore wear allowances can be inspected with a standard set of calibrated micrometers or on a milling machine with CNC readout.

Chock bore wear allowances can also be inspected on a milling machine with CNC readout.

If limits are exceeded in the chock bore wear allowances then corrective maintenance, such as boring the chock oversize and welding the bore up and re-bore the chock back to original drawing tolerances.

All values of chock bore wear allowance readings should be recorded and kept for future comparisons.

Roll Neck Wear Allowances

Roll neck wear allowances should be inspected in order to check clearances and maximum looseness or regrinding limit of the roll neck wear allowances in reference to the bearing inside diameter.

Cylindrical roll neck wear allowances can be inspected with a standard set of calibrated micrometers. If the roll neck is tapered then the appropriate sine bar can be used in conjunction with a calibrated micrometer.

Roll neck wear allowances can also be inspected on a roll grinder with CNC readout.

If limits are exceeded in the roll neck wear allowances then corrective maintenance such as turning the roll neck down enough to allow for corrective weld overlay and then regrinding the roll neck tolerances back to original drawing tolerances.

All values of roll neck wear allowance readings should be recorded and kept for future comparisons.

Speed Convertor

We have developed a handy speed convertor to convert linear speed to rotational speed or rotational speed to linear speed, based on a certain roll, wheel or shaft diameter.

The speed converter will accept metric or imperial units of measure.

The linear speed convertor to rotational speed requires inputs in feet/meters per minute and a diameter of the rotating device entered in inches/mm.

The rotational speed convertor to linear speed requires inputs in revolutions per minute and a diameter of the rotating device entered in inches/mm.