Reduction of unscheduled maintenance of bulk carpet fiber texturizing equipment

dc.contributor.authorBenson, Linda A.en
dc.contributor.committeechairBlanchard, Benjamin S. Jr.en
dc.contributor.committeememberHaas, Thomas W.en
dc.contributor.departmentSystems Engineeringen
dc.date.accessioned2014-03-14T21:27:54Zen
dc.date.adate2010-01-26en
dc.date.available2014-03-14T21:27:54Zen
dc.date.issued1996-05-18en
dc.date.rdate2010-01-26en
dc.date.sdate2010-01-26en
dc.description.abstractThis project involved the measurement and reduction of unscheduled equipment maintenance in the final stage of a nylon-6 bulk continuous filament process. The SINTEX operation was selected because the cost of poor quality (COPQ) was estimated to be higher here than elsewhere in the process. An accurate measure of the time lost was obtained by measuring the time spent on unscheduled maintenance for a typical machine for forty-eight days. Area personnel ranked potential causes for the most frequent baseline repairs in a Failure Modes and Effects Analysis (FMEA.) Using the causes listed in the FMEA, an experiment was designed with three treatments; cleaning the draw and separator rolls, checking and adjusting threadpath, and maintaining a vibration standard. Results from the experiment showed that the combination of adherence to a vibration standard and weekly inspection and repair of the threadpath reduced unscheduled maintenance by 69 percent over the baseline. Maintaining the demonstrated gains would involve monitoring the amount of unscheduled maintenance downtime and require entering the data recorded at each of fourteen lines daily into a database. This would require hundreds of hours per year. Therefore, an automated maintenance reporting system is recommended to allow a timely response to the unscheduled maintenance system possible.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 72 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-01262010-020249en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01262010-020249/en
dc.identifier.urihttp://hdl.handle.net/10919/40803en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V851_1996.B467.pdfen
dc.relation.isformatofOCLC# 35226855en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectmaintenanceen
dc.subjecttexturizing equipment.en
dc.subjectprocess improvementen
dc.subjectcarpet fiber manufactureen
dc.subject.lccLD5655.V851 1996.B467en
dc.titleReduction of unscheduled maintenance of bulk carpet fiber texturizing equipmenten
dc.typeMaster's projecten
dc.type.dcmitypeTexten
thesis.degree.disciplineSystems Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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