REFRIGERATING DEVICE

• Main Authors: ISHIKAWA KAZUHISA, SUNAGA TAKASHI, OKAJIMA MASAZO
• Format: Patent
• Language: English
• Published: 13.04.2001
• Edition: 7
• Subjects: BLASTING; CHEMISTRY; COMBINED HEATING AND REFRIGERATION SYSTEMS; FUELS; HEAT PUMP SYSTEMS; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES ORMATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHERTHAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; LUBRICANTS; LUBRICATING COMPOSITIONS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WEAPONS

PROBLEM TO BE SOLVED: To resolve a problem that the sliding member of a refrigerant compressor employing HFC based alternative refrigerant is insufficient in a resistance to abrasion when the sliding member, whose surface is treated through ordinary nitriding treatment, is used and high in a treating cost when the sliding member is treated through PVD surface treatment. SOLUTION: The surface of a vane is activated chemically and, thereafter, is treated through nitriding treatment at a treating temperature of 500 deg.C or lower, whereby a dispersion layer, on the surface of which a compound layer is not produced, can be obtained and the abrasion resistance of the sliding unit can be obtained easily at a low cost.