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Why
we use Lambda?
Current Curves for (FNC)
TherMaLLifeÒ
T-41H
MetaLLife
before
TherMaLLifeÒ
T-41H
MetaLLife
after
TherMaLLifeÒ
Compressive Stress Values as a function of Depth in KSI
(1000psi = 1ksi = 6.9mpa = 6,895,000pa)
Coupon Sample Types for 2001 in process
Lab Dip Tank Testing to be Performed at Case Western Reserve
- values above 0 on the "y" axis show tensile stress - encourages cracking.
- values below 0 on the "y" axis show compressive stress - inhibits cracking
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Graph A4 - X-ray diffraction curve for T-41H
MetaLLife
The maximum compressive depth is -158 KSI(.006").
Surface compression is -121 KSI.
Maximum Depth .016"
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Graph A2 - X-ray diffraction curve for the
TherMaLLifeÒ (FNC process).
Maximum compression value is -145KSI at .002" in the surface diffused layer.
Actual surface compression is -96 KSI.
Maximum Depth .006"
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Graph A1 - X-ray diffraction curve for our COMBINATION of the two above processes. Note the high surface compression (-193 KSI) in the diffused layer.
The knee of both curves has been slightly flattened, however, the magnitude of -96 KSI and depth (.016") offers excellent protection against thermal heat checking. If desired, we can combine the
TherMaLLifeÒ
process for die casting dies with
MetaLLife
by first closing small sampling cracks on NEW tools and minor heat checks on USED tools. Then following this with
our
TherMaLLifeÒ
diffusion treatment.
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Tooling may be processed with FNC
TherMaLLifeÒ
as a stand alone process on thermoset plastic molds when topography is a problem.
TherMaLLifeÒ is not a "line of site" process as are some coatings or plating processes so you are assured of complete coverage protection even in areas of difficult access such as ribs or thin wall recesses). The aluminum oxide carrier literally becomes liquid with the introduction of the necessary diffusion gases which assures total coverage.
These graphs are archived read only elements
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