摘要:
To separate gas containing no flux component from a gaseous mixture containing the flux component and recover the flux component. Water vapor generated in a separation unit is cooled by a condensation unit, recovered as water droplets, and reused. Provided are a first water spray unit (20A) that sprays water into a gaseous mixture containing the flux component; a separation unit (10) that includes an introduction port for introducing the gaseous mixture into which water is sprayed from the first water spray unit (20A), the separation unit using a swirling flow to separate the flux component from the gaseous mixture; a second water spray unit (20B) that forms a precipitation flow inside of the separation unit; and a condensation unit (17) that cools water vapor generated in the separation unit (10) to change the water vapor to water droplets, thereby removing the water vapor.
摘要:
In a vacuum soldering apparatus and a control method thereof according to the present invention, in order to prevent flux scattering or solder scattering when voids are defoamed and/or deaerated from molten solder by evacuating a chamber to a target degree of vacuum as well as in order to be able to perform brief evacuation, an evaluation control of a pump is performed. The evaluation control of the pump is performed in which the plural evacuation control properties (#1 through #4) with the gradients ¸ plotting the degrees of vacuum (pressure P) in relation to evacuation time (time t) when a chamber is evacuated by a predetermined pump output, are previously prepared; and the control are changed from evacuation control property of small pump output to evacuation control property of large pump output based on the initially set gradient ¸ in the evacuation control property.
摘要:
In a gas-intake-port array structure, which enables any temperature fluctuation during conveying time of a printed circuit board, a semiconductor wafer or the like to be reduced and allows the printed circuit board and the like to be very uniformly heated or cooled, a nozzle pattern P2 is arranged to be line symmetry with a nozzle pattern P1 in one upper or lower divided section of a nozzle layout region of the nozzle cover 3 relative to a center portion that is orthogonal to a conveying direction, as shown in FIG. 1 . In order for the arrangement patterns diagonally arranged in the nozzle layout region to become identical, the nozzle pattern P1 is arranged to be line symmetry with the nozzle pattern P2 in the other upper or lower divided section. Intake ports 3b, 3c and 3d each having a predetermined opening width are arranged between two blowing nozzles 2 or more and across a first row thereof and plural other rows having different phases, in order to circulate the gas blown from the blowing nozzles 2. Widths of the intake ports 3b, 3c and 3d are set so that they are gradually become narrower with increasing distance from the center portion.
摘要:
To separate gas containing no flux component from a gaseous mixture containing the flux component and recover the flux component. Water vapor generated in a separation unit is cooled by a condensation unit, recovered as water droplets, and reused. Provided are a first water spray unit (20A) that sprays water into a gaseous mixture containing the flux component; a separation unit (10) that includes an introduction port for introducing the gaseous mixture into which water is sprayed from the first water spray unit (20A), the separation unit using a swirling flow to separate the flux component from the gaseous mixture; a second water spray unit (20B) that forms a precipitation flow inside of the separation unit; and a condensation unit (17) that cools water vapor generated in the separation unit (10) to change the water vapor to water droplets, thereby removing the water vapor.
摘要:
Provided are a nut, an attachment for nut and a screw shaft, which are fitted to a coating material coating device or a soldering device and can change a fixed position of the nut easier than that of a convention example even if any adhered matters generated when each device is used for a long time are fixed, and a soldering device using the same. The nut 10 screws on to the screw shaft 2 having a predetermined length. The nut 10 is provided with a non-meshing part 11 composed of a notch 12 that is formed parallel to a movement direction thereof by cutting off screw threads and a flange portion 13, which has connecting holes 14 for connecting another member. Under such a configuration, by forward and/or backward movement of the nut 10, the notch 12 functions as if it scraps the fixed matters 6.
摘要:
[PROBLEMS] A reflow furnace with a conventional flux fume removing device has had difficulty in completely sucking flux fume in the furnace, and in addition, when a purified gas is circulated in the furnace, such a reflow furnace has been unable to stabilize oxygen concentration in the furnace because turbulence of the gas in the furnace causes the outside air to flow into the furnace. [MEANS FOR SOLVING PROBLEMS] A reflow furnace having a suction pipe in the entire heating zone, along a rail on which a transportation conveyor runs, and suction holes are formed inside the suction pipe. In addition, a gas purified outside the furnace is made to flow out at the entrance and exit, and this creates air curtains at the entrance and exit to prevent the outside air from entering into the furnace.