Abstract:
IN METHOD FOR ELECTRODEPOSITING AN ORGANIC, FILMFORMING COATING MATERIAL WHEREIN A STREAM OF AN AQUEOUS DISPERSION OF THE COATING MATERIAL IS PASSED FROM A FIRST ELCTRODE TO AN ELECTRICALLY CONDUCTIVE WORKPIECE WHICH SERVES A SECOND ELECTRODE OF A COATING CIRCUIT, A DIFFERNCE OF ELECRICAL POTENTIAL IS PROVIDED BETWEEN THE FIRST ELECTRODE AND THE SECOND ELECTRODE AND UNIDIRECTIONAL ELECTRIC CURRENT IS PASSED BETWEEN THE FIST ELECTODE AND SECOND ELECTRODE THROUGH SAID STREAM, THE IMPROVEMENT WHEREIN A PLURALITY OF STREAMS OF THE AQUEOUS DISPERSION ARE SEPARATELY PASSED IN CONTACT WITH THE FIRST ELECTRODE AND CONVERGED INTO A SINGLE STREAM BEFORE CONTACTING THE WORKPIECE.
Abstract:
A method of increasing the energy output of an electron accelerator by scanning the electron beam produced in the accelerator in a manner so that excessive heat build-ups do not occur at the electron permeable window structure through which the beam passes to exit the accelerator. This method is used in conjunction with an accelerator having at least two elongate, electron permeable windows arranged in a side-by-side orientation and scanning coils allowing the beam to be scanned parallel to at least two, perpendicular axes. The method provides that the beam is scanned along the length of a first of the windows in a first direction and then instantaneously is scanned laterally to the second of the windows. The beam then is scanned along the length of the second of the windows in a second direction 180* from the first direction. A return of the beam to its original position is accomplished as the beam then is scanned laterally and instantaneously a second time such that it again is directed at the first of the windows. Unlimited repetition of these scanning steps is possible.
Abstract:
APPARATUS FOR COATING ELECTRICALLAY CONDUCTIVE OBJECTS COMPRISES IN COMBINATION BATH RETENTION MEANS, A HOUSING FORMING AN ENCLOSED IRRADIATION ZONE* ADJACENT TO AND EXTENDING OVER AND INTO SIAD BATH RETENTION MEANS, INLET MEANS INTO SAID IRRADIATION ZONE THROUGH WHICH AN INERT GAS CAN BE INTRODUCED INTO SAID ZONE, A FIRST ELECTRODE WITHIN SAID BATH RETENTION MEANS, ELECTRICAL SUPPLY MEANS TO PROVIDE A DIFFERENCE OF POTENTIAL BETWEEN THE OBJECT TO BE COATED AND SIAD FIRST ELECTRODE, CONVEYOR MEANS FOR TRANSPORTING SAID OBJECT THROUGH SAID COTAING BATH AND INTO SAID IRRADIATION ZONE, AND ELECTRON EMISSION MEANS FOR IRRADIATING SAID OBJECT IN SAID IRRADIATION ZONE.
Abstract:
A COATING BATH COMPRISING PAINT BINDER RESIN IS DISPERSED AS ANIONIC ELECTROLYTE IN AQUEOUS MEDIUM AND CHARACTERIZED BY BEING ANODICALLY DEPOSITABLE THEREFROM AS A PAINT FILM THAT IS CROSSLINKABLE BY IONIZING RADIATION HAVING AVERAGE ENERGY IN THE RANGE OF 100,000 TO 450,000 ELECTRON VOLTS. IN ONE EMBODIMENT, THE MAJOR FRACTION OF THE PAINT BINDER RESIN IS A HOMOPOLYMERIZABLE, ALPHA-BETA OLEFINICALLY UNSATURATED RESIN HAVING PER MOLECULE AT LEAST ONE CARBOXYL GROUP IONIZABLE IN THE AQUEOUS MEDIUM OF THE BATH. IN ANOTHER EMBODIMENT, THE MAJOR FRACTION OF THE PAINT BINDER IS AN ALPHA-BETA OLEFINICALLY UNSATURATED RESIN HAVING PER MOLECULE AT LEAST ONE CARBOXYL GROUP IONIZABLE IN THE AQUEOUS MEDIUM OF THE BATH AND A CROSSLINKABLE AMOUNT OF VINYL MONOMERS. APPARATUS FOR USE IN ELECTRODEPOSITING AND CURING THIS COATING MATERIAL IS ALSO DISCLOSED.