초록 ▼

A welding method that enables the joining of at least two dissimilar, metallic alloys to form a weld that is free of cracks is disclosed. The method incorporates a pure (99.00% minimum by weight) nickel fill-wire, integrally assembled into the joint between the two alloyed metals to be joined. The a

A welding method that enables the joining of at least two dissimilar, metallic alloys to form a weld that is free of cracks is disclosed. The method incorporates a pure (99.00% minimum by weight) nickel fill-wire, integrally assembled into the joint between the two alloyed metals to be joined. The alloys joined by this method are an iron-based, low expansivity, gamma-prime strengthened superalloy (i.e., Incoloy.RTM.) and a high carbon, powder metallurgical tool steel high in refractory metal alloying agents (i.e., CPM REX 20). Welding of the joint results in the formation of a nickel rich region within the weld, thus "inoculating" the weld against cracks. The weld joint formed by the method of the present invention can be used in the fabrication of a rotating anode bearing shaft assembly for use in an x-ray generating device.

대표청구항 ▼

A welding method that enables the joining of at least two dissimilar, metallic alloys to form a weld that is free of cracks is disclosed. The method incorporates a pure (99.00% minimum by weight) nickel fill-wire, integrally assembled into the joint between the two alloyed metals to be joined. The a

A welding method that enables the joining of at least two dissimilar, metallic alloys to form a weld that is free of cracks is disclosed. The method incorporates a pure (99.00% minimum by weight) nickel fill-wire, integrally assembled into the joint between the two alloyed metals to be joined. The alloys joined by this method are an iron-based, low expansivity, gamma-prime strengthened superalloy (i.e., Incoloy.RTM.) and a high carbon, powder metallurgical tool steel high in refractory metal alloying agents (i.e., CPM REX 20). Welding of the joint results in the formation of a nickel rich region within the weld, thus "inoculating" the weld against cracks. The weld joint formed by the method of the present invention can be used in the fabrication of a rotating anode bearing shaft assembly for use in an x-ray generating device. � ce electrode of said diode includes silver. 18. A solar battery as in claim 3, wherein said front surface electrode of said first solar battery cell or said rear surface electrode of said first and second solar battery cells, or said front surface electrode or said rear surface electrode of said diode includes silver. 19. A solar battery as in claim 4, wherein said front surface electrodes of said solar battery cell and said diode included in said one solar battery cell with built-in diode, or said rear surface electrodes of said solar battery cell and said diode included in said another solar battery cell with built-in diode includes silver. 20. A solar battery as in claim 5, wherein said front surface electrodes of said solar battery cell and said diode of said solar battery cell with built-in diode, or said rear surface electrodes of said solar battery cell and said diode of said another solar battery cell with built-in diode includes silver. 21. A solar battery as in claim 6, wherein said front surface electrode of said first solar battery cell or said rear surface electrode of said first and second solar battery cells, or said front surface electrode or said rear surface electrode of said diode includes silver. 22. A solar battery as in claim 2, wherein said sola