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US 6,742,702 B2Granted
Gas injection type soldering method and apparatus
AssigneeJapan Unix Co., Ltd.
InventorShigeru Abe
Life of this patent
Estimating the term…
Abstract
After a reducing gas is mixed with an inert gas by a mixer, a resultant mixed gas is heated by a heater and made to a hot mixed gas which is dehumidified and dried and the temperature of which is increased. The mixed gas is injected to a subject from an injection port formed in a soldering iron, and thereby soldering is performed by heating and melting solder with the soldering iron in the atmosphere of the mixed gas.
Claims13
A gas injection type soldering apparatus, comprising:
- a gas injection mechanism configured to inject a mixed gas in which a reducing gas is mixed with an inert gas from an injection port to a subject;
- and
- a soldering iron configured to perform soldering by heating and melting solder, the soldering iron including the injection port,
- wherein the gas injection mechanism comprises flow regulators configured to individually regulate flow rates of the reducing gas and the inert gas supplied from gas supply sources separately, a gas mixer configured to uniformly mix the reducing gas and the inert gas supplied from the flow regulators, a gas heater configured to heat the mixed gas supplied from the gas mixer to dehumidify and dry the mixed gas and to increase a temperature of the mixed gas, the injection port configured to inject the heated hot mixed gas, and a controller configured to regulate a mixing ratio of the reducing gas and the inert gas by controlling the respective flow regulators.
1 more element
A gas injection type soldering apparatus, comprising:
- a gas injection mechanism configured to inject a mixed gas in which a hydrogen gas is mixed with a nitrogen gas from an injection port to a subject;
- and
- a soldering iron configured to perform soldering by heating and melting solder, the soldering iron including the injection port,
- wherein the gas injection mechanism comprises flow regulators configured to individually regulate flow rates of the hydrogen gas and the nitrogen gas supplied from gas supply sources separately, a gas mixer configured to uniformly mix the hydrogen gas and the nitrogen gas supplied from the flow regulators, a gas heater configured to heat the mixed gas supplied from the gas mixer to dehumidify and dry the mixed gas and to increase a temperature of the mixed gas, the injection port configured to inject the heated hot mixed gas, and a controller configured to regulate a mixing ratio of the hydrogen gas and the nitrogen gas by controlling the respective flow regulators, and further comprising a concentration sensor configured to measure a concentration of the gas in a vicinity of the subject, and a safety circuit configured to restrict a supply of at least the hydrogen gas, when a value of concentration measured by the concentration sensor exceeds a set value, by controlling the flow regulators by the controller.
1 more element
Dependencies are inferred from the claim text.