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1. WO2016189544 - CORROSION RESISTANT BURIED UNDERGROUND DUCTILE CAST IRON PIPING MEMBERS WITH AN IMPROVED EXTERNAL COATING AND THE METHOD THEREOF

Publication Number WO/2016/189544
Publication Date 01.12.2016
International Application No. PCT/IN2016/000104
International Filing Date 22.04.2016
IPC
F16L 58/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
58Protection of pipes or pipe fittings against corrosion or incrustation
CPC
B32B 1/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
B32B 1/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
08Tubular products
B32B 15/013
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
01all layers being exclusively metallic
013one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
B32B 15/18
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
18comprising iron or steel
C22C 18/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
18Alloys based on zinc
04with aluminium as the next major constituent
C22C 37/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
37Cast-iron alloys
Applicants
  • ELECTROSTEEL CASTINGS LIMITED AN INDIAN LIMITED COMPANY [IN]/[IN]
Inventors
  • GHOSH, Abhijit
Agents
  • GUPTA, Niloy Kumar
Priority Data
595/KOL/201528.05.2015IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CORROSION RESISTANT BURIED UNDERGROUND DUCTILE CAST IRON PIPING MEMBERS WITH AN IMPROVED EXTERNAL COATING AND THE METHOD THEREOF
(FR) ÉLÉMENTS DE CANALISATION EN FONTE DUCTILE SOUTERRAINS RÉSISTANTS À LA CORROSION COMPORTANT UN REVÊTEMENT EXTERNE AMÉLIORÉ ET PROCÉDÉ ASSOCIÉ
Abstract
(EN)
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.
(FR)
La présente invention concerne l'amélioration du traitement anticorrosion extérieur d'éléments de canalisation en fonte ductile, par le biais de la mise au point d'un film métallique de pseudo-alliage avec de la peinture modifiée sur la surface externe, la présente invention concernant plus particulièrement la résistance à la corrosion améliorée d'éléments de canalisation en fonte ductile, en particulier lors d'une utilisation à l'état enterré, ainsi que le procédé de revêtement permettant de former une couche de pseudo-alliage métallique anticorrosion dans la surface périphérique avec une peinture à base de baume de cajou (CNSL) modifié.
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