CVD (Chemical Vapor Deposition) and PVD (Physical Vapor Deposition) technologies are widely used in mold surface treatment. The CVD coating technology boasts high-temperature oxidation resistance and excellent bonding strength, demonstrating good application effects on high-speed steel cutting dies and extrusion molds.
TD Coating is a surface superhardening treatment technology, abbreviated for the Thermal Diffusion Carbide Coating Process.
Mold Surface Treatment – Laser Finishing

Technical Highlights
(1) The laser hardening layer achieves a hardness of HV800-1100, boasts excellent wear resistance and tensile damage resistance, and its lifespan after a single mold repair is 5-50 times longer than that of flame hardening.
(2) The laser quenching layer features uniform hardness and depth, with a strong bond to the substrate.
(3) Post-laser quenching treatment results in minimal deformation, eliminating the need for any correction or processing.
(4) Laser welding technology can repair local surface damage on molds, such as scratches, with significant better results than other welding methods.
(5) Features a high processing speed, typically up to 0.5 m²/h.
(6) Only the worn areas of the mold require specific treatment, rather than the entire mold surface.
(7) Notably enhanced the surface quality of drawing parts.
Pulsed High-Energy Electron Beam Technology
Mold Surface Treatment -- Pulsed
Technical Principles and Features
Pulsed high-energy beam technology enables a variety of surface treatment processes. Essentially, it involves the application of transient high-energy density to the material surface, creating extreme processing conditions far from equilibrium. This results in changes to the material's quality distribution, chemical, and mechanical states within the energy-affected area, achieving surface structures and performance that are difficult to attain with conventional methods. Currently, pulsed high-energy beams include laser beams, ion beams, electron beams, and plasma beams. Among them, surface treatment with electron beams offers the following advantages: using accelerated electrons as the energy carrier, the energy conversion efficiency during interaction with the material surface is 70% to 80% higher than that of laser treatment, and there is no issue with element injection. Processing in a vacuum avoids oxidation and contamination problems.