Flux recovery device, soldering device and method for removing flux

Abstract

The invention provides a flux recovery device capable of removing flux in a pipe and a method for removing the flux. This flux recovery device (200), which recovers flux from a mixed gas containing a flux component, is provided with a separation unit (400) for separating flux from the mixed gas with water and discharging water containing flux, a pipe (500) having a second connection port (540) into which water containing flux flows, an inclined part (580) into which water containing flux flows, and a first connection port (520) into which water containing flux flows, and a pump (220) for pumping the water containing flux from the separation unit (400), the inclined part (580), and the first connection port (520) into which water containing flux flows. And a pump (220) for supplying water from the first connection port (520), the pump (220) being provided with an inclined portion (580) located downstream of the second connection port (540) and extending in a direction intersecting a plumb line extending in the gravitational direction, and the first connection port (520) located upstream of the inclined portion (580), the inclined portion (580) being located downstream of the second connection port (540) and extending in the direction intersecting the plumb line extending in the gravitational direction, and the pump (220) being provided with water from the first connection port (520).

Description

ABSTRACT To provide a flux recovery device which can remove a flux in a pipe and a method for removing a flux. A flux recovery device 200 according to the present invention recovers a flux from a gaseous mixture containing a flux component, the flux recovery device 200 including: a separation unit 400 configured to separate the flux from the gaseous mixture using water, and to discharge the water containing the flux; a pipe 500 including a second connection port 540, an inclined portion 580, and a first connection port 520, the water containing the flux flowing into the pipe 500 from the second connection port 540, the inclined portion 580 being positioned on a downstream side of the second connection port 540, and extending in a direction intersecting with a vertical line extending in a gravity direction, and the first connection port 520 being positioned on an upstream side of the inclined portion 580; and a pump 220 configured to supply water from the first connection port 520.

Claims

1. A flux recovery device, wherein the flux recovery device recovers flux from a mixed gas comprising flux components, characterized in that, Equipped with a separation unit, piping, and pump. The aforementioned separation section uses water to separate the flux from the aforementioned mixed gas, and discharges the water containing the flux. The aforementioned piping has a second connection port, an inclined portion, and a first connection port. The aforementioned second connection port allows water, including the aforementioned flux, to flow in. The aforementioned inclined portion is located downstream of the aforementioned second connection port, extending in a direction intersecting a vertical line extending in the direction of gravity. The aforementioned first connection port is located upstream of the aforementioned inclined portion. The aforementioned pump supplies water to the aforementioned piping from the aforementioned first connection port. The water supplied from the first connection port to the aforementioned piping will wash away the flux adhering to the aforementioned inclined portion. The aforementioned pump supplies water to the first connection port at predetermined intervals. The aforementioned piping extends in a straight line from the location where the first connection port is formed to the first bend, then extends vertically after bending at the first bend, and then bends again at the second bend. The aforementioned pump uses water pressure to flush away flux located in areas where the water sprayed from the aforementioned first connection port cannot directly impact the flux.

2. The flux recovery device as described in claim 1, characterized in that, The pressure of the water supplied from the first connection port by the aforementioned pump is higher than the pressure of the water containing the aforementioned flux flowing in from the second connection port.

3. The flux recovery device as described in claim 1 or 2, characterized in that, The pressure difference between the pressure of the water supplied from the first connection port by the aforementioned pump and the pressure on the downstream side of the aforementioned inclined section is 0.1 MPa or more.

4. The flux recovery device as described in claim 1 or 2, characterized in that, The aforementioned inclined portion has a straight piping section extending in a straight line. The aforementioned conduit extends in a straight line from the location where the first connection port is formed to the downstream end of the aforementioned straight conduit section. The water supplied from the aforementioned pump is sprayed into the aforementioned straight piping section.

5. The flux recovery device as described in claim 1 or 2, characterized in that, The aforementioned pump can also supply water to the aforementioned separation section.

6. The flux recovery device as described in claim 5, characterized in that, It also includes a purification device, which is supplied with water containing the flux discharged from the separation section, and the flux is separated from the water containing the flux to recover the flux. The aforementioned pump supplies water separated from the aforementioned flux by the aforementioned purification device to the aforementioned first connection port and the aforementioned separation section.

7. The flux recovery device as described in claim 1 or 2, characterized in that, It also has a control unit that controls the supply of water from the aforementioned pump to the aforementioned first connection port.

8. The flux recovery device as described in claim 7, characterized in that, The aforementioned control unit controls the water supply at the aforementioned predetermined intervals.

9. A welding apparatus, characterized in that, Equipped with a solder processing department and flux recovery equipment, The aforementioned flux recovery device is the flux recovery device according to claim 1 or 2 that recovers flux from a mixed gas containing flux components generated by the aforementioned solder processing unit.

10. A method for removing flux, characterized in that, The device includes a process of separating flux from a mixed gas containing flux components using water to discharge water containing flux, a process of allowing water containing flux to flow into the aforementioned second connection port of a pipe having a second connection port, an inclined portion, and a first connection port, and a process of supplying water to the aforementioned pipe through the aforementioned first connection port. The aforementioned inclined portion is located downstream of the aforementioned second connection port, extending in a direction intersecting with a vertical line extending along the direction of gravity. The aforementioned first connection port is located upstream of the aforementioned inclined portion. The water supplied from the first connection port to the aforementioned piping will wash away the flux adhering to the aforementioned inclined portion. The pump supplies water to the first connection port at predetermined intervals. The aforementioned piping extends in a straight line from the location where the first connection port is formed to the first bend, then extends vertically after bending at the first bend, and then bends again at the second bend. The aforementioned pump uses water pressure to flush away flux located in areas where the water sprayed from the aforementioned first connection port cannot directly impact the flux.

Images