Surface treatment method of cold-work die steel

Surface treatment method of cold-work die steel

  • CN 103,510,080 A
  • Filed: 10/14/2013
  • Published: 01/15/2014
  • Est. Priority Date: 10/14/2013
  • Status: Active Application
First Claim
Patent Images

1. the surface treatment method of a cold-work die steel, its step comprises purifying treatment, preplating Ni-P layer and Ni-P, it is characterized in that:

  • the cold-work die steel through preplating Ni-P layer is immersed in the plating solution that has added stablizer and tensio-active agent and carries out surface active;

    Described Ni-P is included at 75 ℃



    95 ℃

    temperature, is added with premixed TiO after surface modification 2and SiO 2in the plating solution of nano particle, Ni-P forms Ni-P-TiO for 30~

    40 minutes 2/ SiO 2coating;

    Dry by 250 ℃



    500 ℃

    processing 0.5h~

    3h under room temperature again.

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