Title:
REFLOW FURNACE AND HOT-AIR BLOWING-TYPE HEATER
Document Type and Number:
WIPO Patent Application WO/2005/065876
Kind Code:
A1
Abstract:
[PROBLEMS] A reflow furnace using a conventional hot-air blowing-type heater has a problem in reducing &Dgr t and in stabilizing an oxygen concentration at a low state. Further, in a conventional hot-air blowing-type heater, uniformly blowing hot air from blowing holes in a hole plate is difficult. [MEANS FOR SOLVING PROBLEMS] The total area of blowing holes per unit area of a hole plate, in which the blowing holes are formed, of a hot-air blowing-type heater installed in a main heating zone is 1.5 to 5 times that of blowing holes per unit area of a hole plate, in which the blowing holes are formed, of a hot-air blowing-type heater installed in a preliminary heating zone. A body of a hot-air blowing-type heater is partitioned into three chambers by partition walls, and the area of blowing sections on both sides is greater than the area of a sucking section in the middle.
Inventors:
NAKAMURA HIDEKI (JP)
KAGAYA TOMOTAKE (JP)
HIYAMA TSUTOMU (JP)
KAGAYA TOMOTAKE (JP)
HIYAMA TSUTOMU (JP)
Application Number:
PCT/JP2004/019061
Publication Date:
July 21, 2005
Filing Date:
December 21, 2004
Export Citation:
Assignee:
SENJU METAL INDUSTRY CO (JP)
NAKAMURA HIDEKI (JP)
KAGAYA TOMOTAKE (JP)
HIYAMA TSUTOMU (JP)
NAKAMURA HIDEKI (JP)
KAGAYA TOMOTAKE (JP)
HIYAMA TSUTOMU (JP)
International Classes:
B23K1/008; B23K1/012; B23K3/047; F27B9/10; F27B9/30; (IPC1-7): B23K1/008; H05K3/34
Foreign References:
| JPH02137691A | 1990-05-25 | |||
| JPH10284831A | 1998-10-23 | |||
| JPH08125327A | 1996-05-17 | |||
| JPH08242075A | 1996-09-17 |
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