Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p74
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 212413–215269

processes:
a. 'Vacuum atomisation';
b. 'Gas atomisation';
c. 'Rotary atomisation';
d. 'Splat quenching';
e. 'Melt spinning' and 'comminution';
f. 'Melt extraction' and 'comminution';
g. 'Mechanical alloying'; or
h. 'Plasma atomisation'; and
3. Capable of forming materials specified by 1C002.a. or 1C002.b.;
d. Alloyed materials having all of the following:
1. Made from any of the composition systems specified by 1C002.c.1.;
2. In the form of uncomminuted flakes, ribbons or thin rods; and
3. Produced in a controlled environment by any of the following:
a. 'Splat quenching';
b. 'Melt spinning'; or
c. 'Melt extraction'.
Technical Notes:
For the purposes of 1C002.:
           1. 'Vacuum atomisation' is a process to reduce a molten stream of metal to droplets of a diameter of 500 μm or less by the rapid evolution of a dissolved gas upon exposure to a vacuum.
           2. 'Gas atomisation' is a process to reduce a molten stream of metal alloy to droplets of 500 μm diameter or less by a high pressure gas stream.
           3. 'Rotary atomisation' is a process to reduce a stream or pool of molten metal to droplets to a diameter of 500 μm or less by centrifugal force.
           4.  'Splat quenching' is a process to 'solidify rapidly' a molten metal stream impinging upon a chilled block, forming a flake-like product.
           5.  'Melt spinning' is a process to 'solidify rapidly' a molten metal stream impinging upon a rotating chilled block, forming a flake, ribbon or rod-like product.
           6. 'Comminution' is a process to reduce a material to particles by crushing or grinding.
           7. 'Melt extraction' is a process to 'solidify rapidly' and extract a ribbon-like alloy product by the insertion of a short segment of a rotating chilled block into a bath of a molten metal alloy.
           8. 'Mechanical alloying' is an alloying process resulting from the bonding, fracturing and rebonding of elemental and master alloy powders by mechanical impact. Non-metallic particles may be incorporated in the alloy by addition of the appropriate powders.
           9. 'Plasma atomisation' is a process to reduce a molten stream or solid metal to droplets of 500 μm diameter or less, using plasma torches in an inert gas environment.
         10. For the purposes of 1C002. Technical Notes, 'solidify rapidly' is a process involving the solidification of molten material at cooling rates exceeding 1000 K/sec.
1. C. 003. Magnetic metals, of all types and of whatever form, having any of the following:
a. Initial relative permeability of 120,000 or more and a thickness of 0.05 mm or less;
Technical Note:
For the purposes of 1C003.a., measurement of initial relative permeability must be performed on fully annealed materials.
b. Magnetostrictive alloys having any of the following:
1. A saturation magnetostriction of more than 5