METHOD FOR MANUFACTURING CYLINDER BLOCK

PROBLEM TO BE SOLVED: To provide a method for manufacturing a cylinder block, which secures an adequate abrasion property even when required to partially change. SOLUTION: A thermal-sprayed film 103 is formed on an internal circumferential surface of a bore 101a of a cylinder liner 101 by the steps...

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Bibliographische Detailangaben
1. Verfasser:	ITO EIZO
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBUSTION ENGINES CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS PISTONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SEALINGS SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a cylinder block, which secures an adequate abrasion property even when required to partially change. SOLUTION: A thermal-sprayed film 103 is formed on an internal circumferential surface of a bore 101a of a cylinder liner 101 by the steps of: supplying an orifice gas from an orifice gas feeder 40 to a plasma spraying device 10; converting the orifice gas into a plasma arc 41 by discharge occurring when an electric current supplied from a power supply 30 is applied to the plasma spraying device; spouting the plasma arc from a nozzle 13a of a thermal spraying gun 13 of the plasma spraying device 10; heating and melting a powder of a thermal spray material delivered from a thermal spray material feeder 20, with the plasma arc 41 spouted from the nozzle 13a; and spouting the material to the internal circumferential surface of the bore. At this time, a thermal spraying parameter is controlled according to an abrasion property which is required to be partially changed in the thermal-sprayed film 103 in a predetermined way, to control the porosity, oxide amount and hardness of the thermal-sprayed film 103. COPYRIGHT: (C)2006,JPO&NCIPI