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Title:
DUCTILE IRON PIPE HAVING ANTI-CORROSION INNER COATING, AND PRODUCTION PROCESS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/210212
Kind Code:
A1
Abstract:
A ductile iron pipe having an anti-corrosion inner coating, and a production process therefor. An epoxy coating is applied on the inner wall of the ductile iron pipe and the paint of the epoxy coating is a solvent-free phenolic epoxy ceramic paint. The volume solid content of the solvent-free phenolic epoxy ceramic paint is greater than or equal to 98%, preferably greater than or equal to 99%. By applying the epoxy ceramic coating to the inner wall of the ductile iron pipe, the ductile iron pipe is endowed with excellent high temperature resistance, anti-corrosion performance, and abrasive resistance, the surface is smooth, frictional resistance between water and the pipe wall can be reduced, and thus a long service life of the pipe can be ensured.

Inventors:
LI, Chengzhang (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
HE, Qishu (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
LI, Jun (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
LI, Ning (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
SHEN, Yong (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
YUE, Jiangfeng (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
JIA, Qingbo (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
WANG, Ying (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
WANG, Zhiqiang (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
SHEN, Yanying (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
MA, Zongyong (Research Institute, Xinxing Ductile Iron Pipes Industry AreaWuan, Hebei 0, 056300, CN)
Application Number:
CN2018/086787
Publication Date:
November 22, 2018
Filing Date:
May 15, 2018
Export Citation:
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Assignee:
XINXING HEBEI ENGINEERING & RESEARCH CO., LTD (200 Meters Southbound of Intersection between Hexie Street and Hanlin Road, Kaifa District Handan, Hebei 7, 056107, CN)
International Classes:
F16L58/02; B05D7/22; F16L58/10
Foreign References:
CN104728557A2015-06-24
CN102838921A2012-12-26
CN105111894A2015-12-02
CN103450776A2013-12-18
CN105733413A2016-07-06
Attorney, Agent or Firm:
BEIJING SHUANGSHOU INTELLECTUAL PROPERTY AGENT LTD. (Room 506-507, Tower B 3rd Building Region 5, West Anzhen,Chaoyang, Beijing 9, 100029, CN)
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