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    • 14. 发明专利
    • METHOD FOR MANUFACTURING COMBUSTION DEVICE
    • JPH01256710A
    • 1989-10-13
    • JP8159188
    • 1988-04-01
    • MATSUSHITA REFRIGERATION
    • DOMOTO HIDEAKI
    • F23D14/06F23D14/46
    • PURPOSE:To reduce the number of component parts and simplify a manufacturing procedure by a method wherein a plurality of steel plates are overlapped on each other, an opening is left at the outer-most circumference of the steel plate, an entire circumference of the steel plate is welded and then adequate fluid is added from the opening, an expanded part is formed through a pressurization and formation and then a gas blowing hole is opened at the expanded part at its proper position. CONSTITUTION:At first, two stainless steel plates 21 are overlapped on each other while they are not formed. An inner-most circumference 22 and an outer-most circumference 23 are welded by TIG welding which is a kind of arc welding with an opening 24 being left at an outer-most circumference 23 of the stainless steel plate 21. After the stainless steel plate 21 is fixed to forming dies 29 and 30, proper fluid such as water, oil, solvent and air is forcedly inputted from the opening 24 with a proper pressure. An expanding part 26 is formed along grooves 31 and 32 formed in the forming dies 29 and 30, a gas accumulation part 27 is formed so as to make a combustion device 20 having a gas blowing hole 25 at a proper position in the expanding part 26. In this way, it is possible to eliminate a cutting process, simplify a manufacturing procedure and then a less-expansive combustion device with high productivity can be manufactured.