método para produção de uma peça revestida usando técnicas de conformação a quente

A method for manufacturing a coated part having very high mechanical properties using hot forming techniques. The method includes the steps of 1-providing a steel strip; 2-coating the steel strip with a layer of zinc or zinc alloy; 3-heating the coated steel to a temperature between 300° C. and the...

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Bibliographische Detailangaben
Hauptverfasser:	WILLEM CORNELIS VERLOOP, Guido Hensen
Format:	Patent
Sprache:	por
Schlagworte:	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 DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A method for manufacturing a coated part having very high mechanical properties using hot forming techniques. The method includes the steps of 1-providing a steel strip; 2-coating the steel strip with a layer of zinc or zinc alloy; 3-heating the coated steel to a temperature between 300° C. and the Ac1 temperature of the steel; 4-cooling the coated steel; 5-cutting a blank from the strip after step 1, 2, 3 or 4; 6-heating the blank to a temperature above the Ac1 temperature of the steel; 7-hot forming the blank into a part; and 8-hardening the hot formed part. The method can also be performed without step 4. The method can also be used for the indirect hot formed method. The method also relates to a method for manufacturing a coated steel strip, and to a coated steel strip, blank or part and a hot formed part.