HELICAL COMPRESSION SPRING FOR AN ACTUATOR FOR OPENING AND CLOSING A DOOR OR A TAILGATE OF A CAR

A helical compression spring has an outer diameter between 15 and 50 mm. The helical compression spring having a helically coiled steel wire. The diameter d of the steel wire is between 2 and 5 mm. The steel wire contains a steel alloy having between 0.8 and 0.95 wt % C; between 0.2 and 0.9 wt % Mn;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VAN HAVER, Wim, VERMEERSCH, Vincent, GHEKIERE, Pieter, VAN DE VELDE, Johan, CARDON, Olivier
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING KEYS LIGHTING LOCKS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SAFES SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	A helical compression spring has an outer diameter between 15 and 50 mm. The helical compression spring having a helically coiled steel wire. The diameter d of the steel wire is between 2 and 5 mm. The steel wire contains a steel alloy having between 0.8 and 0.95 wt % C; between 0.2 and 0.9 wt % Mn; between 0.1 and 1.4 wt % Si; between 0.15 and 0.4 wt % Cr; optionally between 0.04 and 0.2 wt % V; optionally between 0.0005 and 0.008 wt % B; optionally between 0.02 and 0.06 wt % Al; unavoidable impurities; and the balance being iron. The steel alloy has a carbon equivalent higher than 1. The carbon equivalent is defined as: C wt %+(Mn wt %/6)+(Si wt %/5)+(Cr wt %/5)+(V wt %/5). The microstructure of the steel wire in the helical compression spring is drawn lamellar pearlite.