Composite metal-polymer coating to prevent hot-alkali pressure container from cracking owing to stress and corrosion


Application Number: 00113817
Application Date: 2000.05.22
Publication Number: 1274766
Publication Date: 2000.11.29
Priority Information:
International: C23C4/08;C23C4/18
Applicant(s) Name: Xi'an Jiaotong Univ.
Address:
Inventor(s) Name: Han Zhihai;Chen Hua;Chen Lili
Patent Agency Code: 61200
Patent Agent: jia yujian
Abstract The composite metal-polymer coating includes a Ni-Cr alloy base layer adhered to metal substrate, a Fe-Cr-Ni alloy face layer on the base layer, and a surface closing epoxy resin layer. It can separate the direct action of alkali solution on welding seam area to protect welding seam from the corrosion of alkali solution and thus to avoid cracking of hot alkali pressure container caused by stress and corrosion and prolong the safe service life of evaporator.