Bids Are invited for Repair, Maintenance, And Installation Of Plant/ Systems/Equipments (Version 2) - Onboar ... in India

Work Detail

Bids Are invited for Repair, Maintenance, And Installation Of Plant/ Systems/Equipments (Version 2) - Onboard Ins Pralaya At Nd(Mb); Rebuilding Of Propeller Shaft By Manual Metal Arc Welding Process - Ins Pralaya; Service Provider - To Remove Fatigued/Damaged Surface Of The Shaft By Machining On The Lathe Machine. , Machining To Be Done Till Sound Free Surface. , Dye Penetrant Test/ Non-Destructive Testing To Confirm The Solid And Defect Free Surface For Welding. , Pre Heating The Portion To Be Welded Approximately @200-250 C. Baking Of Electrode @150 C For One Hour. Base Layer With Welding Electrode Lh 1105-3.2 Mm. Mechanical Cleaning On The First Layer For Dye Penetrate Test For Checking Surface Cracks. If Any. , Maintain Inter-Pass Temperature @ 150C And Top Layer Build Up Using Welding Electrode Lh 521-3.2Mm. Welding Subsequence Layer To Achieved Final Diameter, Considering Machining Allowance. , Wrapping The Welded Area In Asbestos/ Ceramic Cloth For Heat At 50C Per Hour For 4 Hours, Followed By Slow Cooling Till Room Temperature. , Machining/ Grinding To Required Diameter.

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