Selective wave crest welding spray nozzle structure and spray nozzle disc composed of same

• Main Authors: XU JIE, SI YUNTAO, LU CHANGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2017
• 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 selective wave crest welding spray nozzle structure. The spray nozzle structure is divided into a first part and a second part, wherein the first part is vertically arranged on a tin cylinder, the second part is arranged on the first part, and the second part and the first part have the inclination angle A in the vertical direction. The invention further discloses a spray nozzle disc composed of the selective wave crest welding spray nozzle structure. The tension of surplus tin liquid between a tin wave of a spray nozzle and a lead foot can be increased, interference of various factors to the detinning process is reduced, and the tin connection risk is reduced; and the overflow range of the tin wave of the spray nozzle on a PCB is reduced to make larger space for a surface mounted device, washed piece defects are reduced, and the size of the whole PCB is reduced. 本发明公开了种选择性波峰焊喷嘴结构，该喷嘴结构划分为竖直设置于锡缸上的第部；以及，设置于第部上，与第部在竖直方向具有倾斜角度A的第二部。本发明还公开了种由所述选择性波峰焊喷嘴结构组成的喷嘴盘。本发明能增加喷嘴锡波与引脚间多余锡液的拉力，减小各种