MANUFACTURING METHOD OF FLOW PASSAGE MEMBER, THE FLOW PASSAGE MEMBER, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE DEVICE

• Main Authors: AKABANE FUJIO, HANAGAMI HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 29.03.2018
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a manufacturing method of a flow passage member which can reduce a defect of a non-welded part caused by such as a sink, and provide the flow passage member, a liquid discharge head, and a liquid discharge device.SOLUTION: A manufacturing method of a flow passage member having a flow passage between a first member 30 and a second member 31 which are mutually laminated includes: a first process of welding the first member and the second member mutually at a first welded part 41a in a state that a pressure is applied in a lamination direction on the first member and the second member which are laminated so as to be in contact with each other; and a second process of welding the first member and the second member mutually in a state that the pressure is applied in the lamination direction on the first member and the second member at a second welded part 42b in a position different from the first welded part. The pressure applied on the second welded part in the second process is larger than the pressure applied on the second welded part in the first process.SELECTED DRAWING: Figure 12 【課題】ヒケ等による非接合部による不具合を低減することが可能な流路部材の製造方法、流路部材、液体吐出ヘッド、および、液体吐出装置を提供する。【解決手段】互いに積層された第１部材３０および第２部材３１の間に流路を有する流路部材の製造方法であって、互いに接するように積層された第１部材および第２部材に対して積層方向に圧力を付与した状態で、第１溶着部４１ａにおいて第１部材および第２部材を互いに溶着する第１工程と、第１溶着部とは異なる位置の第２溶着部４２ｂにおいて第１部材および第２部材に対して積層方向に圧力を付与した状態で、第１部材および第２部材を互いに溶着する第２工程と、を含み、第２工程において第２溶着部に加わる圧力は、第１工程において第２溶着部に加わる圧力よりも大きい。【選択図】図１２