초록 ▼

A combination ultraviolet curing and infrared dryer system which allows both an ultraviolet curing unit to be used at the same time an infrared dryer is used. The infrared dryer and ultraviolet curing unit are placed in an enclosure having a cooling system which cools both the ultraviolet curing uni

A combination ultraviolet curing and infrared dryer system which allows both an ultraviolet curing unit to be used at the same time an infrared dryer is used. The infrared dryer and ultraviolet curing unit are placed in an enclosure having a cooling system which cools both the ultraviolet curing unit and the infrared dryer. The cooling system may comprise an air supply system, or may comprise an air supply system and a water cooling system.

대표청구항 ▼

A combination ultraviolet curing and infrared dryer system which allows both an ultraviolet curing unit to be used at the same time an infrared dryer is used. The infrared dryer and ultraviolet curing unit are placed in an enclosure having a cooling system which cools both the ultraviolet curing uni

A combination ultraviolet curing and infrared dryer system which allows both an ultraviolet curing unit to be used at the same time an infrared dryer is used. The infrared dryer and ultraviolet curing unit are placed in an enclosure having a cooling system which cools both the ultraviolet curing unit and the infrared dryer. The cooling system may comprise an air supply system, or may comprise an air supply system and a water cooling system. aim 1, wherein said step of forming said protrusion includes simultaneously placing an expanding and a reducing force upon said tubular member. 8. A method for joining a first tubular member, having an end portion with an inner surface and an outer surface, to a second tubular member having an end portion with an inner surface and an outer surface, the end portion of the second tubular member being of a size and shape for receiving, upon insertion, the end portion of the first tubular member such that the outer surface of the first member then is adjacent the full periphery of the inner surface of the second member, the method comprising the steps of: forming a continuous peripheral protrusion from and around the outer surface of the first tubular member or the inner surface of the second tubular member, the protrusion being directed and sized to engage the adjacent surface of the other of the members upon insertion; inserting the end portion of the first tubular member into the end portion of the second tubular member such that the full periphery of the protrusion contacts the adjacent surface wherein contact of the full periphery with the adjacent surface is the only contact between the first tubular member and the second tubular member; passing a current from a first electrical connection through the protrusion to a second electrical connection by inducing an electrical potential between the connections wherein the current is effective to form a sealing weld between the protrusion and the adjacent surface; and hydroforming said first and second tubular members including the sealing weld. 9. A method as in claim 8 in which at least one said protrusion is formed generally radially inwardly from the inner surface of the second tubular member prior to the insertion step. 10. A method as in claim 8 in which at lest one said protrusion is formed generally radially outwardly from the outer surface of the first tubular member prior to the insertion step. 11. A method as in claim 8 further comprising exerting a force effective to promote contact between the protrusion and the adjacent surface at substantially the same time as the step of passing a current through the protrusion. 12. A method as in claim 11 wherein the step of exerting the force includes placing a magnetic member adjacent to the protrusion. 13. A method as in claim 8 wherein the step of forming the protrusion includes roll grooving. 14. A method as in claim 8 wherein the step of forming the protrusion includes simultaneously placing an expanding and a reducing force upon the tubular member. 15. A method for joining a first tubular member, having an end portion with an inner surface and an outer surface, to a second tubular member having an end portion with an inner surface and an outer surface, the end portion of the second tubular member being of a size and shape for receiving, upon insertion, the end portion of the first tubular member such that the outer surface of the first member is adjacent the full periphery of the inner surface of the second member, the method comprising the steps of: forming a continuous peripheral protrusion from and around the outer surface of the first tubular member or the inner surface of the second tubular member, the protrusion being directed and sized to engage the adjacent surface of the other of the members upon insertion; inserting the end portion of the first tubular member into the end portion of the second tubular after forming the protrusion, thereby contacting the full periphery of the protrusion with the adjacent surface; biasing the protrusion and the adjacent surface together with a magnetic flux for promoting greater contact between the protrusion and the adjacent surface; passing a current from a first electrical connection through the protrusion to a second electrical connection by inducing an electrical potential between the connections with a pulsing power supply wherein the current is effective to form a sealing weld between the protrusion and the adjacent surface; and hydroforming the first and second tubular members including the sealing weld to form a component of a space frame of an automotive vehicle. 16. A method as in claim 15 in which at least one said protrusion is formed generally radially inwardly from the inner surface of the second tubular member prior to the insertion step. 17. A method as in claim 15 in which at least one said protrusion is formed generally radially outwardly from the outer surface of the first tubular member prior to the insertion step. 18. A method as in claim 15 further comprising exerting a force effective to promote contact between the protrusion and the adjacent surface at substantially the same time as the step of passing a current through the protrusion.