ASSEMBLY MANUFACTURING METHOD Russian patent published in 2023 - IPC C23C28/02 C23C30/00 C23C14/16 C23C14/24 C23C14/35 B23K103/04 B23K103/20 B23K101/16 

EFFECT: steel treatment.

SUBSTANCE: group of inventions is related to a pre-coated steel substrate, a method for manufacturing said substrate, a method for manufacturing an assembly from at least two said substrates, an assembly obtained by said method, and the use of said assembly for the manufacture of vehicle parts. The pre-coated steel substrate comprises the following layers: a first pre-coating of titanium, optionally an intermediate pre-coating layer containing at least 8 wt.% nickel and at least 10 wt.% chromium, the rest being iron, or optionally an intermediate pre-coating layer, containing Fe, Ni, Cr and Ti, in which the content of Ti is greater than or equal to 5 wt.%, and the following equation is satisfied: 8 wt.% < Cr + Ti < 40 wt.%, Fe and Ni - the rest; second pre-coating based on zinc. The specified steel substrate contains more than 0.05 wt.% Si.

EFFECT: assembly that includes at least a steel substrate that is resistant to cracks resulting from liquid metal embrittlement is provided.

19 cl, 2 dwg, 5 tbl, 2 ex