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Nutmeg Engineering Nickel is a fine grain pure nickel coating that has been developed specifically to meet the standard needs of the mold industry. The process is primarily used for build-up work when the high temperatures created during the welding process are undesirable, thereby eliminating the possibility of "heat sinks." Thickness in excess of .100" are attainable, allowing for design change without the time and expense of manufacturing a new tool. Engineering Nickel deposits more firmly than an equal thickness of chromium plating. Although nickel can be plated at various degrees of hardness, engineering nickel is designed to be plated at the same hardness as most tools steel. Softer deposits are available on request. Engineering nickel is a barrier type coating. The greater the build-up, the more protection will be obtained. Although there have been applications where engineering nickel provides greater service life than the original steel, normal procedure is to overlay a hard chromium deposit for enhanced performance for a specific application.
*Please note that Engineering Nickel is not a uniform coating and all areas plated will require matching.
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Plating Thickness Range |
.001 up to .100"" |
Tolerance |
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Hardness:
prior to baking
after baking |
40-50 Rc
40-50 Rc
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Coefficient of friction |
.22 |
Molding temperature |
up to 500º F |
Salt spray testing (ASTM) |
70 hrs. |
Polish to |
SPI A1 |
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