Patent ID: 9511379
Filing Date: 2016-12-06
CPC Classification: B05B,B23K,F27B,F27D,H05K

Claim Text:
1. A gas-intake-port array structure of a gas-blowing-holes plate in a soldering apparatus for performing soldering by discharging gas from plural gas-blowing holes arranged in the gas-blowing-holes plate and blowing the gas to a board to be soldered while a conveyed member, which mounts the board, is conveyed, comprising: the gas-blowing-holes plate having a predetermined nozzle layout region; wherein the nozzle layout region is divided into four divided sections; wherein in an arrangement pattern of the gas-blowing holes arranged in one of the divided sections: wherein in the divided sections of upper and lower opposite sides relative to a center portion of the nozzle layout region in which the width direction and the conveying direction are orthogonal to each other, a first arrangement pattern of the gas-blowing holes and a second arrangement pattern of the gas-blowing holes, which is an inverse first arrangement pattern thereof, are provided so that the arrangement patterns that are arranged on a diagonal line in the nozzle layout region are identical; and wherein gas intake oval ports each having a predetermined opening width for circulating the gas blown from the gas-blowing holes are arranged between the first and second gas-blowing holes and across the first row and the plural other rows having different phases and the opening widths of the oval ports are formed so as to be gradually narrower with increasing distance from the center portion.