Method of restraining an amorphous metal core
AssigneeCooper Power Systems, Inc.
InventorsMaurice J. Boenitz, Harry T. Denner
Life of this patent
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Abstract
A method of making an amorphous metal transformer core includes the steps of providing an amorphous metal core having two legs which are connected by an upper and a lower yoke, wrapping each of the legs with a sheet of flexible material which is capable of withstanding, without degradation, the temperature which is required to anneal the amorphous metal core, and then annealing the amorphous metal core. An amorphous metal transformer core includes a stack of amorphous metal laminations, the stack being formed into two legs which are connected by upper and lower yokes in which the legs are wrapped with a sheet of flexible material which is capable of withstanding, without degradation, the temperature required to anneal the amorphous metal core.
Claims12
A method of making an amorphous metal core for use in a transformer comprising the steps of:
- providing an amorphous metal core formed from a stack of amorphous metal laminations, said core having two legs which are connected by a top and a bottom yoke, each of said legs having a linear portion;
- wrapping each of said legs with a sheet of flexible, non-metallic material which is capable of withstanding, without degradation, the temperature which is required to anneal the amorphous metal laminations, said wrapping step further comprising wrapping the entire linear portion of each of said legs with said sheet material;
- and
- after said wrapping step, heating the wrapped metal core to a temperature which is sufficient to anneal the amorphous metal laminations.
A method of making an amorphous metal core for use in a transformer comprising the steps of:
- providing an amorphous metal core formed form a stack of amorphous metal laminations, said core having two legs which are connected by a top and a bottom yoke, said legs each having a linear portion;
- wrapping each of said legs with a sheet of flexible material which is capable of withstanding, without degradation, the temperature which is required to anneal the amorphous metal laminations such that said sheet material directly contacts said metal laminations and said linear portions are substantially completely enclosed by said sheet material;
- and
- after said wrapping step, heating the wrapped metal core to a temperature which is sufficient to anneal the amorphous metal laminations.
Dependencies are inferred from the claim text.