MANUFACTURE OF IRON ALLOY HAVING SATISFACTORY RESISTANCE TO STRESS CORROSION CRACKING
PURPOSE:To obtain the titled iron alloy capable of satisfying requirements for the improvement of reliability and having satisfactory solderability by specifying conditions during final heat treatment when an Fe-Ni-Co alloy having a low coefft. of thermal expansion is manufactured. CONSTITUTION:An i...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PURPOSE:To obtain the titled iron alloy capable of satisfying requirements for the improvement of reliability and having satisfactory solderability by specifying conditions during final heat treatment when an Fe-Ni-Co alloy having a low coefft. of thermal expansion is manufactured. CONSTITUTION:An iron alloy consisting of 25-34wt% Ni, 14-20wt% Co and the balance Fe, having a low coefft. of thermal expansion and useful as a lead material for a semiconductor device or a material for sealing glass is manufactured. At this time, the iron alloy is finally heat treated at such a low temp. as |
---|