Soldering methods and apparatus
Abstract
Abstract THIS INVENTION RELATES TO AN AUTOMATIC SOLDERING MACHINE PARTICULARLY DESIGNED FOR USE IN CONNECTION WITH THE MANUFACTURE OF PRINTED CIRCUIT BOARDS OR THE LIKE, WHICH UTILIZES NOZZLE MEANS FOR PROJECTING MOLTEN SOLDER IN A CURVILINEAR STREAM HAVING AN UPPER SURFACE PRESENTING A CREST ABOVE THE LEVEL OF THE NOZZLE, AND TO ONE SIDE THEREOF. UPON THE UNDERSURFACE OF THE ITEM TO BE SOLDERED BEING BROUGHT INTO CONTACT WITH THE STREAM OF SOLDER, THE EFFECTIVE SOLDERING OF THE COMPONENTS IS BROUGHT ABOUT. MEANS ARE PROVIDED FOR APPLYING A THIN FILM OF OXIDIZATIONPREVENTING OIL OVER THE CURVED UPPER SURFACE OF THE SOLDER STREAM, AND ADDITIONALLY, THE ARRANGEMENT MAY INCLUDE MEANS FOR SUBJECTING THE COMPLETED CIRCUIT BOARD TO A FLOW OF REFRIGERATED GAS THAT SERVES TO QUICKLY EXTRACT HEAT, THUS PREVENTING FORMATION OF EXCESSIVELY CRYSTALLINE OR GRAINY SOLDER JOINTS.
Inventors
- 👤 Solomon C Osborne
- 👤 Joseph D Keller
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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