Epoxy based balancing compound and method for balancing a rotor utilizing an ultraviolet-curable epoxy resin composition
First Claim
1. A method of balancing a rotor which comprises applying to the rotor a balancing composition which comprises an epoxy resin, a photoinitiator in an amount sufficient to cause cationic polymerization and cure said resin upon the application of ultraviolet light (about 10 nm to about 400 nm), and a filler in an amount to give said composition a specific gravity above 1.1, said filler not being ultraviolet light opaque and selected from a group consisting of quartz, silica, and the combination thereof, and exposing the balancing composition at ambient temperature to ultraviolet light of less than 40 watts per square centimeter for less than 30 seconds and curing said resin.
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Abstract
A balancing compound comprising an epoxy resin, a photoinitiator in an effective amount to cure the resin at ambient temperatures upon the application of ultraviolet light (10 nm to 400 nm) of less than 40 watts per square centimeter in less than about 30 seconds, and a filler in an effective amount to give the compound a specific gravity above 1.1.
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Citations
51 Claims
- 1. A method of balancing a rotor which comprises applying to the rotor a balancing composition which comprises an epoxy resin, a photoinitiator in an amount sufficient to cause cationic polymerization and cure said resin upon the application of ultraviolet light (about 10 nm to about 400 nm), and a filler in an amount to give said composition a specific gravity above 1.1, said filler not being ultraviolet light opaque and selected from a group consisting of quartz, silica, and the combination thereof, and exposing the balancing composition at ambient temperature to ultraviolet light of less than 40 watts per square centimeter for less than 30 seconds and curing said resin.
- 24. A method of balancing a rotor comprising applying to a rotor a balancing composition comprising an epoxy resin, a photoinitiator in an amount to cure said resin at ambient temperature upon the application of ultraviolet light (about 10 nm to about 400 nm) of less than 40 watts per square centimeter in less than about 30 seconds, and a filler in an amount to give said composition no slump at room temperature and a specific gravity above 1.1, the composition not being sufficiently tacky, adherent or cohesive to adhere to the rotor during dynamic testing before curing, curing said resin by exposing said composition to ultraviolet light of less than 40 watts per square centimeter for less than about 30 seconds, dynamically testing the rotor with the now cured balancing composition in position thereon, adding an additional amount of the balancing composition on the rotor to achieve the desired balance, if required, and then curing said additional resin.
Specification