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 Fatigue, Mumbai-Maharashtra
TDR : 55377574
Tender Notice
BOQ
4 Days Left
Mumbai
Maharashtra
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 Fatigue
To remove fatigued/damaged surface of the shaft by machining on the lathe machine.
To remove fatigued/damaged surface of the shaft by machining on the lathe machine.
2
Machining to be done till sound free surface.
Machining to be done till sound free surface.
3
Dye Penetrant test/ Non-destructive testing to confirm the solid and defect free surface for welding.
Dye Penetrant test/ Non-destructive testing to confirm the solid and defect free surface for welding.
4
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.
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.
5
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.
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.
6
Wrapping the welded area in asbestos/ ceramic cloth for heat at 50C per hour for 4 Hours, followed by slow cooling till room temperature.
Wrapping the welded area in asbestos/ ceramic cloth for heat at 50C per hour for 4 Hours, followed by slow cooling till room temperature.
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