FOR THE ATTENTION OF THE FIRMS FABRICATING ALUMINUM PROFILE
As is known, there are more than twenty methods of metal surface hardening.
Why is nitration hardening applied on the flow surfaces of the dies used in the fabrication of aluminum profile:
- After nitration, there will be no drawing on the surface.( Even so, it will be in a compensable level.)
- Slickness is provided on the die flow surface.
- Overall hardening is provided on the surface of the die flow.
After nitration, what do we need to be careful about not to damage the nitration surface during the polishing:
- The nitration slag (dregs) must be taken homogeneously from the flow surface (including each spot).
- The slickness on the die flow surface (including each corner) must be protected. This also means that the nitrogen level is protected in equal ratio.
- The flash of the internal and external flanges of the flow surface must be taken equally.
- The flow surface must be protected from rust after polishing.
C) Otherwise, what you will come across are:
- The profile flow will not be even.
- The life of the die will be short.
- The surface of the profile will not be produced evenly.
- The flashes on the profile flow surface edge of the die that are not taken equally, constrains the profile flow and scratches out the profile.
D) ’’NITROGEN’’ surface is shown more clearly in the hardened die table below:
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