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INVINCIBLESOLUTIONS · EST. 2019
Resources · Glossary

Glossary of industrial terms.

Short, plain-English definitions of the words you'll meet on the floor and in our guides.

ATEX
EU directives for equipment used in potentially explosive atmospheres.
BOD
Biochemical oxygen demand — a water-quality test needing a cooled incubator.
Cavitation
Formation and collapse of micro-bubbles in liquid; the cleaning action in ultrasonic tanks.
Cooling bed
Area in a rolling mill where hot bars cool before cutting and bundling.
CTL
Cut-to-length — a line that uncoils, levels and cuts strip into sheets.
ERW
Electric resistance welding — the common process for welded steel tube and pipe.
Fin-pass
Tube-mill stands that centre and condition the seam before welding.
Flower pattern
The sequence of profiles a strip passes through as it is formed into a tube.
Kerf
Width of material removed by a saw cut.
Mass finishing
Batch deburring and polishing of parts with media in a vibratory machine.
MC nylon
Monomer-cast nylon (PA6) used for machined engineering-plastic parts.
OCR
Optical character recognition — reading printed or stamped marks by camera.
Planetary gearbox
Gearbox with planet gears around a sun gear; high torque in a compact size.
Roll neck
The journal at each end of a mill roll that runs in a bearing.
Shot-peening
Blasting with round media to add compressive stress and improve fatigue life.
Slew drive
Gearbox and slewing bearing combined to rotate heavy loads.
Swarf
Chips and turnings produced by machining.
TMT
Thermo-mechanically treated — high-strength reinforcing bar (rebar).
Tramp oil
Hydraulic and way oil that leaks into machine coolant.
ULT freezer
Ultra-low temperature freezer for sensitive biological samples.
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