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Statistical methods for quality improvement in a gypsum board manufacturing process | |
Author | Anuchana Fuang-arom |
Call Number | AIT Thesis no.IE-90-30 |
Subject(s) | Gypsum industry--Quality control |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. IE-90-30 |
Abstract | Quality is an important problem in any gypsum board manufacturing system. This study :L s concerned witl1 t h e us e o:E statistical techniques to analyze the quality problem of gypsum board in Siam Fibre-cement Co. , Ltd. The existing quality control activities of this company have been studied. A major problem is the uneven surface board caused by the poor quality of paper. So the main objective o f the present study is to set the best level of each important paper quality characteristic for producing good quality board. Taguchi ' s method is used for conducting experimental design to set the best levels. Signal to noise ratio is used as the performance statistic in the analysis of variance. The best level of paper qu ality characteristics are set to reduce the variation of gypsum board quality from the target value. The min or objectives of this study are the testing for uniformity in order to measure the consistency of paper quality throughout the roll and the testing for validating of the vendor sample for representing the samples of the company to reduce loss from the existing sampling procedure. Some discussions and recommendations are presented to serve as guidelines towards possible improvements and further studies in the future. |
Year | 1990 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IE-90-30 |
Type | Thesis |
School | School of Engineering and Technology |
Department | Other Field of Studies (No Department) |
Academic Program/FoS | Industrial Engineering (IE) |
Chairperson(s) | Nagarur, Nagendra N. ; |
Examination Committee(s) | Tabucanon, Mario T. ;Huynh, Ngoc Phien ; |
Scholarship Donor(s) | Government of Belgium ; |
Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1990 |