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CN106854747A 一种低露点环境中在Fe基材料表面制备含锌Al2O3和SiO2薄膜的方法 有权

  • Patent Title: 一种低露点环境中在Fe基材料表面制备含锌Al2O3和SiO2薄膜的方法
  • Patent Title (English): Method for producing zinc-containing Al2O3 and SiO2 film on surface of Fe-based material in low-dew point environment
  • Application No.: CN201611241415.3
    Application Date: 2016-12-29
  • Publication No.: CN106854747A
    Publication Date: 2017-06-16
  • Inventor: 苏旭平 , 周杰 , 王建华 , 涂浩 , 刘亚 , 吴长军 , 彭浩平
  • Applicant: 常州大学
  • Applicant Address: 江苏省常州市武进区滆湖路1号
  • Assignee: 常州大学
  • Current Assignee: 常州大学
  • Current Assignee Address: 江苏省常州市武进区滆湖路1号
  • Main IPC: C23C8/72
  • IPC: C23C8/72 ;  C23F13/12
一种低露点环境中在Fe基材料表面制备含锌Al<base:Sub>2</base:Sub>O<base:Sub>3</base:Sub>和SiO<base:Sub>2</base:Sub>薄膜的方法
Abstract:
本发明专利属于表面涂层涂覆技术，本发明提出了一种新型的低露点环境中在Fe基合金表面制备含Zn氧化膜的工艺。在密闭环境中加热Zn和ZnO的混合粉末，使密闭空间产生恒定的低氧压，从而使氧化物分解压小于此低氧压的金属，Fe基合金中Al、Si发生选择性外氧化，本发明能够使Fe基材料表面生成Al2O3和SiO2保护膜Zn蒸汽凝华生成的金属Zn便填覆在没有被氧化膜覆盖住的基体区域，实现阳极保护，提高Fe基材料的抗腐蚀性能。
Abstract(English):

The invention belongs to a surface coating layer coating technology, and provides a novel method for producing a zinc-containing Al2O3 and SiO2 film on the surface of a Fe-based material in a low-dew point environment. Zn and ZnO mixed powder is heated in a closed environment to make a constant low oxygen pressure generated in a closed space, so metal with the oxide decomposition pressure being less than the low oxygen pressure and Al and Si in the Fe-based alloy are selectively oxidized. The method makes a Al2O3 and SiO2 protection film generated on the surface of the Fe-based material and metallic Zn generated after condensation of Zn steam cover a matrix area not covered with the oxide film, realizes anodic protection, and improves the corrosion resistance of the Fe-based material.

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