A Production Process of Stainless Steel Wire for Riveting Shells with Large Deformation

Abstract

The invention provides a production process of stainless steel wire for riveting shells with large deformation, and belongs to the technical field of stainless steel wire production. The process uses 304HC stainless steel wire with a diameter of Φ5.5mm as the raw material; draws once to make stainless steel wires with diameters of Φ3.79mm and Φ4.59mm; then pickles the stainless steel wire with sulfuric acid electrolyte , and then washed with water; then the stainless steel wire is dried in a preheating furnace; the dried stainless steel wire is annealed in an annealing furnace; the annealed stainless steel wire is treated with a film; finally the processed stainless steel wire is coiled and packaged finished product. The stainless steel wire produced by this process has a bright surface, no defects in appearance, excellent mechanical properties, good corrosion resistance, and can achieve large deformation. The mechanical properties of Φ3.79mm stainless steel wire are: tensile strength 530‑550MPa, yield strength 240‑250MPa, elongation 40‑50%, hardness HV: 160‑180; mechanical properties of Φ4.59mm stainless steel wire are: tensile strength 540‑570MPa, yield strength 230‑250MPa, elongation 45‑55%, hardness HV: 160‑190.

Description

technical field [0001] The invention relates to the technical field of stainless steel production, in particular to a production process of stainless steel wire for riveting shells with large deformation. Background technique [0002] At present, 304HC stainless steel wire has been widely used in various fields, especially as large deformation stainless steel wire, which is characterized by 3.48-3.62% Cu. In austenitic stainless steel, the role of copper as an alloying element is to significantly reduce the austenite The cold hardening tendency of stainless steel improves the cold forming performance, and the presence of copper can significantly improve the corrosion resistance of austenitic stainless steel to reducing media, such as sulfuric acid, phosphoric acid, etc., and when molybdenum and copper are compounded and alloyed, the effect is even greater prominently, the addition of copper promotes the dissolution of molybdenum to form MoO 4 2- , strongly promote the pass...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a production process of stainless steel wire for riveting shells with large deformation. The characteristics of large deformation

Images