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Small impulse sealer Heat-sealed material lies on a warehouse floor. Notice the corded heat sealer to the left. Heat sealer used to prepare plastic bag of lettuce for shelf life testing Continuous band heat sealer. A heat sealer is a machine used to seal products, packaging, and other thermoplastic materials using heat. This can be with uniform ...
External vacuum sealers involve a bag being attached to the vacuum-sealing machine externally. The machine will remove the air and seal the bag, which is all done outside the machine. A heat sealer is often used to seal the pack. Typically these units use a dry piston vacuum pump which is often considered a "maintenance-free" pump.
Induction sealing is the process of bonding thermoplastic materials by induction heating. This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents. Induction sealing is used in many types of manufacturing.
Primers for heat-shrinkable sleeves work in the same manner as an FBE primer does when it is specified on 3-layer polyolefin pipeline coatings and is typically applied between 150 μm and 300 μm thick. Usually, the primer of heat shrinkable sleeve is two components non-solvent Epoxy, one is primer base and the other is curing agent.
The part that converts electricity into heat is called a heating element. Among the applications are: Buildings are often heated with electric heaters where grid power is available. Electric stoves and ovens use Joule heating to cook food. Soldering irons generate heat to melt conductive solder and make electrical connections.
Sealer Hill, South Shetland Islands, Antarctica; Sealers' Oven, bread oven of mud and stone built by sealers around 1800 near Albany, Western Australia; Sealers Passage, marine channel in the South Shetland Islands, Antarctica; Sealers' War, conflict in southern New Zealand started by sealers in 1810