straP redrO lacepSiCrN（Chromium nitride）DLC（Diamond Like Carbon）CMTi（Composite Multi-layer Titanium Coating）Please pay attention to following notes:1 The processing limit for coating range is ＋/ー0.005mm. For the precision over this limit, please enquire. 2 Do not grind too much at regrinding to prevent coating layer from exfoliation.3 The cutting edge of punch may be formed to R shape after coating, please consider this for precision product. The chemical vapor deposition（CVD）methodThe chemical vapor deposition （CVD） method which has been represented by TiC（Titanium carbonization） has following features.But this treatment also has some shortages which has to be considered while ordering. （1）High treating temperature enhances the adhesiveness of coating layer.（2）The higher hardness of coating layer treated by TiC, which could reach 3800HV.（3）The coating layer can even be generally formed on the intricate product shape.（4）Multi-layer composite film may be easily coated.（1）Because the treating temperature is between 700℃〜1200℃, the product tip shape deformation such as edge warping and bending will occurred after coating. The edge sinking may also appeared by high temperature.（2）Because the product was processed before coating, the adjustment can not carried out if the shape deformation occurred.（3）The base material itself may impact the quality of coating layer.CrN coating treatment has the features of high hardness and preventing abrasion, meltage, corrosion, and acidification. By the outstanding performance within the working environment of high temperature and heavy corrosion, CrN is mainly applied for pressing dies, but also suitable for punches and slide components. DLC is a kind of carbon film, named by its rigidity as diamond. It has the features of high hardness, extremely low friction coefficients, and self-lubrication, which are applied for adhesive nonferrous material punching operation and light load slide or bending parts. DLC（Diamond Like Carbon）CMTi is a special ion nitriding treatment which is based on improving the physical property of vapor deposition surface, continuously forming multiple titanium layers（TiC＋TiCN＋TiN）on the base material. Compare to conventional physical vapor deposition （PVD） method; the lower ion nitriding layer improved the adhesiveness of the base material and titanium layer, in order to provide higher layer hardness. CrN has been widely applied for pressing dies.Color：silverColor：blackColor：gold73Notes The features of chemical vapor deposition（CVD） Shortage
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