Patent Number: 7,786,407

Title: Process for capillary electric welding of low and high alloy steels, hardened or not, and bimetals, for the obtainment of a determined texture, without thermal treatment

Abstract: Patent of Invention for PROCESS CAPILLARY ELECTRIC WELDING OF LOW AND HIGH ALLOY STEELS, HARDENED OR NOT, AND BI-METALS, FOR THE OBTAINMENT OF A DETERMINED TEXTURE, WITHOUT THERMAL TREATMENT, in which the first layer (1) is used to line the bevel and its root with electrodes of crystallization of the deposited welding material, said weld being adequate for the obtainment of the austenitic plus ferretic texture. With the second layer (2), proceed with the filling of the bevel with the crystallization of the deposited weld, obtaining a perlitic or pearlitic plus troostitic texture, while in the third and fifth layers (3, 5), the electrode for the obtainment of an austenitic plus ferritic texture. In the fourth layer (4), the electrode of deposited weld crystallization for the obtainment of a sorbitic plus bainitic texture is used, and in the sixth layer (6), an electrode for deposited weld crystallization for the obtainment of a bainitic texture is used.

Inventors: Guth; Bela (Pituba, Salvador, Bahia, BR)


International Classification: B23K 9/23 (20060101); B23K 35/30 (20060101); B23K 35/36 (20060101)

Expiration Date: 8/31/12018