Welding process for stainless steel corrugated pipe and stainless steel hollow supporting piece

• Main Authors: XU CHAOSHENG, CAO FUKUN, CHEN LINZHI, MA ZHAOLONG, JIANG CHUANXING, SHEN MING
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a welding process for a stainless steel corrugated pipe and a stainless steel hollow supporting piece. The welding process comprises the following steps: fixing the stainless steel corrugated pipe and the stainless steel hollow supporting piece on a welding device; winding an Au35Cu65 brazing wire on a to-be-welded pipe orifice of the stainless steel corrugated pipe; then integrally putting the stainless steel corrugated pipe into a vacuum brazing furnace; and the like. According to the welding process, the huge difference between the heat capacity of the stainless steel corrugated pipe and the heat capacity of the stainless steel hollow supporting piece can be overcome; full penetration welding of the welding portion of the stainless steel corrugated pipe and the stainless steel hollow supporting piece is achieved; and sufficient bonding strength and sealing performance are achieved after vacuum brazing. 本发明公开了一种不锈钢波纹管和不锈钢中空支撑件的焊接工艺，包括将不锈钢波纹管和不锈钢中空支撑件固定在焊接装置上，并且在不锈钢波纹管的待焊管口上缠绕Au35Cu65