PRESSURE-SENSITIVE DEVICE AND METHOD OF WELDING JOINT OF PRESSURE-SENSITIVE DEVICE

A pressure-sensitive device for detecting fluid pressure in which fluid flows in a cap member via a joint is disclosed so as to securely joint the cap member to the joint. A washer-shaped nickel plate is arranged between a flange portion of the copper joint and the stainless-steel cap member, and th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HONDOH Masahide, KANAZAKI Fumio
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS PIPES RELAYS SELECTORS SOLDERING OR UNSOLDERING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A pressure-sensitive device for detecting fluid pressure in which fluid flows in a cap member via a joint is disclosed so as to securely joint the cap member to the joint. A washer-shaped nickel plate is arranged between a flange portion of the copper joint and the stainless-steel cap member, and the outer peripheral edge thereof is laser-welded. The nickel plate, a part of the flange portion and a part of the flat portion are melt and welded. As a result, a melt-solidified layer is formed in all over gap between the flange portion of the joint and the flat portion of the cap member so as to enter deeply from the outer peripheral edge of the flange portion toward the axis L of the joint between the flat portion and the flange portion. Furthermore, the melt-solidified layer is composed on copper, nickel and iron that are melt and solidified.