A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories

Bangladesh has to depend mainly on imported spare parts for maintenance of its major industries. The picture is not different in the case of the fertilizer factories. Tilting pad thrust bearing is a critical and very expensive spare part of fertilizer factories. Like many other spares this spare has...

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Bibliographic Details
Main Authors:	Amin, A. K. M. Nurul, M. M., Rahman, M. M., Hossain
Format:	Conference or Workshop Item
Language:	English
Published:	1996
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/29508/ http://irep.iium.edu.my/29508/1/1996_A_case_study_on_design_and_manufacturer_of_tilting_pad.pdf

id	iium-29508
recordtype	eprints
spelling	iium-295082013-07-19T02:34:18Z http://irep.iium.edu.my/29508/ A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories Amin, A. K. M. Nurul M. M., Rahman M. M., Hossain TS200 Metal manufactures. Metalworking Bangladesh has to depend mainly on imported spare parts for maintenance of its major industries. The picture is not different in the case of the fertilizer factories. Tilting pad thrust bearing is a critical and very expensive spare part of fertilizer factories. Like many other spares this spare has to be imported because it is not locally manufactured. The country is loosing a huge amount of foreign currency in importing this and other spare parts. Apart from the high procurement cost import involves long lead time. In order to avoid factory shut downs a lot of spares are also kept in reserve. This leads to very high inventory costs which results in high factory overhead costs. As an attempt to solve these problems the present study was under taken. The main objective of the work was to ascertain whether local manufacture of a critical spare parts like tilting pad thrust bearing was at all feasible. Design and manufacture of the above mentioned bearing were performed under the present case study. Tests were performed to identify the material of the bearing lobes as well as the composition of the of the white metal layer. Since no working or detail drawing of the part was available in the factory, the different dimensions of the spare part were determined by precision measurements and by analytical methods. Apart from that the sequence of manufacturing operations were so designed as to permit its manufacturing using local facilities. Fixtures required for maintaining the required precision of manufacturing were designed appropriately. The part was subsequently manufactured using technical facilities of BUET and BITAC. The lobes were precisely machined and then white metalling was performed. The bearing lobes were then ground and polished to accurate dimensions. Finally the jobs were checked for quality and are ready for practical tests. 1996 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/29508/1/1996_A_case_study_on_design_and_manufacturer_of_tilting_pad.pdf Amin, A. K. M. Nurul and M. M., Rahman and M. M., Hossain (1996) A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories. In: Proceedings Third Annual Paper Meet, 31 Oct - 2 Nov 1996, Chittagong.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS200 Metal manufactures. Metalworking
spellingShingle	TS200 Metal manufactures. Metalworking Amin, A. K. M. Nurul M. M., Rahman M. M., Hossain A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
description	Bangladesh has to depend mainly on imported spare parts for maintenance of its major industries. The picture is not different in the case of the fertilizer factories. Tilting pad thrust bearing is a critical and very expensive spare part of fertilizer factories. Like many other spares this spare has to be imported because it is not locally manufactured. The country is loosing a huge amount of foreign currency in importing this and other spare parts. Apart from the high procurement cost import involves long lead time. In order to avoid factory shut downs a lot of spares are also kept in reserve. This leads to very high inventory costs which results in high factory overhead costs. As an attempt to solve these problems the present study was under taken. The main objective of the work was to ascertain whether local manufacture of a critical spare parts like tilting pad thrust bearing was at all feasible. Design and manufacture of the above mentioned bearing were performed under the present case study. Tests were performed to identify the material of the bearing lobes as well as the composition of the of the white metal layer. Since no working or detail drawing of the part was available in the factory, the different dimensions of the spare part were determined by precision measurements and by analytical methods. Apart from that the sequence of manufacturing operations were so designed as to permit its manufacturing using local facilities. Fixtures required for maintaining the required precision of manufacturing were designed appropriately. The part was subsequently manufactured using technical facilities of BUET and BITAC. The lobes were precisely machined and then white metalling was performed. The bearing lobes were then ground and polished to accurate dimensions. Finally the jobs were checked for quality and are ready for practical tests.
format	Conference or Workshop Item
author	Amin, A. K. M. Nurul M. M., Rahman M. M., Hossain
author_facet	Amin, A. K. M. Nurul M. M., Rahman M. M., Hossain
author_sort	Amin, A. K. M. Nurul
title	A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
title_short	A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
title_full	A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
title_fullStr	A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
title_full_unstemmed	A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
title_sort	case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories
publishDate	1996
url	http://irep.iium.edu.my/29508/ http://irep.iium.edu.my/29508/1/1996_A_case_study_on_design_and_manufacturer_of_tilting_pad.pdf
first_indexed	2023-09-18T20:43:19Z
last_indexed	2023-09-18T20:43:19Z
_version_	1777409510121406464

A case study on design and manufacture of tilting pad thrust bearing for steam turbine of fertilizer factories

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