Aluminum alloys having a pre-determined electrical conductivity
a technology of predetermined electrical conductivity and alloys, which is applied in the field of metal alloys, can solve the problems of inconvenient use, inability to meet the requirements of use, and the need for alloys which are less efficient conductors of electricity than copper and/or copper alloys
Inactive Publication Date: 2006-12-21
HONEYWELL INT INC
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Benefits of technology
The invention is a castable aluminum alloy that can be used to make parts for electric motors. It is made by combining pure aluminum with certain casting aluminum materials, and has a specific electrical conductivity. The alloy can be cast to form parts of an induction rotor for an induction motor. The technical effect of this invention is the creation of a versatile and efficient material for making parts for electric motors.
Problems solved by technology
In fact, if copper and / or copper alloys were used for some of these applications (e.g., some types of induction rotors), too much electricity may be supplied, resulting in corrupted devices and / or circuitry.
Therefore, there is a need for alloys which are less efficient conductors of electricity than copper and / or copper alloys.
Method used
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[0008] The detailed description of various exemplary embodiments of the invention herein makes reference to the accompanying figures. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that logical and mechanical changes may be made without departing from the spirit and scope of the invention. Thus, the detailed description herein is presented for purposes of illustration only and not of limitation. For example, the steps recited in any of the method or process descriptions may be executed in any order and are not limited to the order presented.
[0009] For the sake of brevity, the apparatus and components of the apparatus may not be described in great detail herein. Furthermore, the connecting lines shown in the various figures contained herein are intended to represent exemplary functional relationships and / or physical couplings between ...
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Abstract
An aluminum alloy and a method of making the aluminum alloy comprised of pure aluminum and a casting aluminum. The pure aluminum and casting aluminum are alloyed in appropriate proportions such that the aluminum alloy includes a desired electrical conductivity in the range of about twenty-seven percent (27%) to about fifty-four percent (54%) International Annealed Copper Standard (IACS). Embodiments of the aluminum alloy include a combination of A100 aluminum, and A356 aluminum, A357 aluminum, A360 aluminum, and / or A380 aluminum. The aluminum alloy is made for use in applications where an electrical conductivity less than copper is desired (e.g., wiring cables, cast rotors for induction motors, wound rotors for induction motors, and the like).
Description
FIELD OF THE INVENTION [0001] The invention generally relates to metal alloys, and particularly, to aluminum alloys having a pre-determined electrical conductivity. BACKGROUND [0002] Many electrical applications (e.g., electrical wiring) include copper or copper alloys. Copper and copper alloys are frequently used because their efficient conductive properties are suitable for many applications, and their cost is relatively low. Since copper has such desirable conductive properties, copper is used as the standard by which the conductivity of electrical conductors is measured. As such, conductivity is expressed as a percentage of the International Annealed Copper Standard (IACS), specifically, fifty-eight megasiemens per meter (58 MS / m) or a resistivity (i.e., 1 / conductivity) of 1 / 58 ohm per meter for a copper wire one square millimeter in cross section. Notably, conductivity of one hundred percent (100%) IACS represents a resistivity equal to that of copper. [0003] Some applications,...
Claims
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IPC IPC(8): C22C21/06
CPCC22C1/026
Inventor OXIMBERG, CAROL A.
Owner HONEYWELL INT INC