Corrosion resistant buried underground ductile cast iron piping members with an improved external coating and the method thereof

一种铸铁管件、外部涂层的技术，应用在涂层、化学仪器和方法、金属材料涂层工艺等方向，能够解决优点存在争议等问题

Inactive Publication Date: 2018-01-26
ELECTROSTEEL CASTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Several zinc-aluminum thermal spray coatings have been developed, however there is debate about the merits of the various zinc-aluminum coating combinations, as well as about the optimal zinc-aluminum coating composition

Method used

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  • Corrosion resistant buried underground ductile cast iron piping members with an improved external coating and the method thereof
  • Corrosion resistant buried underground ductile cast iron piping members with an improved external coating and the method thereof
  • Corrosion resistant buried underground ductile cast iron piping members with an improved external coating and the method thereof

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Embodiment Construction

[0032] It is an object of one embodiment of the present invention to provide a pseudo-alloy coating of any alloy composition and a second coat of a CNSL modified resin coating that produces very useful results when applied to pipe fittings.

[0033] It is an object of another embodiment of the present invention to provide a corrosion resistant, renewable and biorenewable resin coating for plumbing fittings which has improved corrosion resistance as discussed in prior patents, but is more economical, cheap, Convenient, safe, and more competitive, and this paint does not contain bisphenol A (BPA) and low content of volatile organic compounds (VOC), which are harmful to health.

[0034] And the purpose of another embodiment is to provide a kind of method that is coated with zinc-aluminum pseudo-alloy on the outer surface of buried ductile iron pipe fittings, and the steps are: uniformly coating the coating of zinc-aluminum pseudo-alloy as the first layer, evenly Coating of CNSL m...

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Abstract

The present invention relates to improvement of the outside anticorrosive treatment of ductile cast iron piping members, through the development of a pseudo alloy metallic film along with modified paint on the external surface, more particularly the present disclosure relates to the improved corrosion resistant to ductile cast iron piping members, specially when used in buried condition, the coating method that can form an anticorrosion pseudo metal alloy layer in the peripheral surface along with a modified Cashew Nut Shell Liquid (CNSL) paint.

Description

technical field [0001] The invention relates to the improvement of the external anti-corrosion treatment of a ductile iron pipe fitting, which is realized by forming a layer of pseudo-alloy metal film and CNSL (cashew nut shell liquid) modified coating on the external surface. The present invention particularly relates to a kind of ductile iron pipe fittings, especially the improved corrosion resistance method of ductile iron pipe fittings under buried conditions, this coating method can form a layer of anti-corrosion pseudo-alloy layer and cashew nut shell liquid (CNSL) on the outer surface ) of modified coatings. The relevant content has been submitted for patent application, the application number is 589 / KOL / 2015. Background technique [0002] The corrosion of iron in soil is a special phenomenon, which is essentially different from the corrosion situation when it is exposed to air. The corrosion of soil varies with the state of soil formation, and the resistivity, sali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L58/00
CPCB32B1/00C22C18/04C23F13/08C23F13/14C23F2213/32C23C4/08C22C37/00C22C38/00C23C4/131F16L58/04B32B15/013B32B1/08B32B15/18F16L9/02F16L58/08
Inventor 阿卜吉特·高士
Owner ELECTROSTEEL CASTINGS
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