GB1122913A - Processes and apparatus wherein a mound of liquid is raised by vibrations - Google Patents
Processes and apparatus wherein a mound of liquid is raised by vibrationsInfo
- Publication number
- GB1122913A GB1122913A GB522366A GB522366A GB1122913A GB 1122913 A GB1122913 A GB 1122913A GB 522366 A GB522366 A GB 522366A GB 522366 A GB522366 A GB 522366A GB 1122913 A GB1122913 A GB 1122913A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- line
- solder
- mound
- fall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0646—Solder baths
- B23K3/0661—Oscillating baths
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
1,122,913. Soldering. M.E.L. EQUIPMENT CO. Ltd. 3 Feb., 1967 [7 Feb., 1966], No. 5223/66. Heading B3R. [Also in Division H4] A mound of solder is caused to be raised in a body of liquid solder by vibrating a probe containing titanium below the surface of the body. A probe 15 comprising 11% tin, 5% zirconium and smaller amount of molybdenum, silicon and aluminium with the remainder titanium or 6% aluminium, 4% vanadium remainder titanium is coupled to the vibrating element 13 of an ultrasonic generator 14 having a winding 12 thereon connected to the secondary winding 11 of a transformer 4. The primary 3 of the transformer is connected to a current supply line 5 and to the anode 2 of an oscillator triode valve 1, the cathode 6 of which is connected to a supply line 7 and the grid 8 of which is connected to the line 7 by a grid leak resistor 10. A feedback magnetostrictive transducer forming part of the generator 14 has its winding 16 on a core 17 connected between the supply line 7 and via a capacitor 18 to the grid 8. In operation a D.C. voltage is applied to line 5 to cause the valve 1 to conduct and current to flow through primary 3 which causes current flow in the secondary 11 and thus the vibrator 13 to be energized. A feed-back potential is thus applied to the valve grid 8 to provide an automatic frequency control. The liquid solder is caused to fall with a horizontal velocity component over a lip in a curved fall and the probe is disposed radially within the fall to produce a mound over which flat printed circuits are passed. The fallen solder is pumped up to the lip again. The supply voltage to line 5 may be intermittent or alternating current as described in Specification 1,082,874.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB522366A GB1122913A (en) | 1966-02-07 | 1966-02-07 | Processes and apparatus wherein a mound of liquid is raised by vibrations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB522366A GB1122913A (en) | 1966-02-07 | 1966-02-07 | Processes and apparatus wherein a mound of liquid is raised by vibrations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1122913A true GB1122913A (en) | 1968-08-07 |
Family
ID=9792024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB522366A Expired GB1122913A (en) | 1966-02-07 | 1966-02-07 | Processes and apparatus wherein a mound of liquid is raised by vibrations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1122913A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2117690A (en) * | 1982-04-02 | 1983-10-19 | Zevatron Gmbh | Apparatus for soldering workpieces |
US4512508A (en) * | 1981-03-25 | 1985-04-23 | Zevatron Gmbh, Gesellschaft Fur Fertigungseinrichtungen Der Elektronik | Method and apparatus for the machine soldering of workpieces |
-
1966
- 1966-02-07 GB GB522366A patent/GB1122913A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4512508A (en) * | 1981-03-25 | 1985-04-23 | Zevatron Gmbh, Gesellschaft Fur Fertigungseinrichtungen Der Elektronik | Method and apparatus for the machine soldering of workpieces |
GB2117690A (en) * | 1982-04-02 | 1983-10-19 | Zevatron Gmbh | Apparatus for soldering workpieces |
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