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2. Auto-defrost - Wikipedia

   en.wikipedia.org/wiki/Auto-defrost

   "Frost-Free" refrigerator/freezer units usually use a heating element to defrost their evaporators, a pan to collect and evaporate water from the frost that melts from the cold plate and/or evaporator coil, a timer which turns off the compressor and turns on the defrost element usually from once to 4 times a day for periods usually ranging from ...

3. Freeze stat - Wikipedia

   en.wikipedia.org/wiki/Freeze_stat

   Air coil freeze stat. A freeze stat is a temperature sensing device for HVAC that monitors a heat exchanger to prevent its coils from freezing.Freeze stats can be used on both refrigerant-to-air, and refrigerant-to-liquid type heat exchangers and serve different purposes with similar goals for each.

4. Thermal spraying - Wikipedia

   en.wikipedia.org/wiki/Thermal_spraying

   Wire arc spray is a form of thermal spraying where two consumable metal wires are fed independently into the spray gun. These wires are then charged and an arc is generated between them. The heat from this arc melts the incoming wire, which is then entrained in an air jet from the gun.

5. Freeze spray - Wikipedia

   en.wikipedia.org/wiki/Freeze_spray

   Freeze spray (cold spray or vapocoolant) is a type of aerosol spray product containing a liquified gas used for rapidly cooling surfaces, in medical and industrial applications. It is usually sold in hand-held spray cans.

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7. Cold spraying - Wikipedia

   en.wikipedia.org/wiki/Cold_spraying

   There are two types of CS. High pressure cold spraying (HPCS) in which the working gas is nitrogen or helium at pressures above 1.5 MPa, [4] a flow rate of more than 2 m 3 /min, heating power of 18 kW. It is used for spraying pure metal powders with the sizes of 5–50 μm.

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