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All Journal Jurnal Teknik Kimia USU Media Teknika Jurnal Teknik Kimia USU
Syahrul Fauzi Indra Surya Siregar
Departemen Teknik Industri, Fakultas Teknik, Universitas Sumatera Utara
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Analisis Pengendalian Kualitas Produk Sanitary Ware Dengan Pendekatan Metode FMEA di PT. XYZ Siregar, Khawarita; Siregar, Syahrul Fauzi
Media Teknika Vol 11, No 1 (2016)
Publisher : Sanata Dharma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.721 KB) | DOI: 10.24071/mt.v11i1.508

Abstract

PT. XYZ is a company engaged in manufacturing of sanitary ware products. Various obstacles are faced by PT. XYZ in the course of its production, one of which is the problem of the quality of products produced from every production process. Based on historical data from July 2014 – June 2015, the percentage of defect for C models squat toilets reached 20.26%. The company  wants  the  upper  limit of  defects  products only  reached  12%  for  each  period of production. Based on previous research, there are two dominant types of defects are cracked/broken and uneven color. Therefore needed improvement through analysis of quality control approach FMEA method and ANOVA. The result of FMEA for cracked/broken defects obtained failure mode is the temperature and duration of combustion products are not appropriate (RPN numbers amounted to 648) and for uneven color obtained failure mode is glazed improper composition (RPN numbers of 576). This study also will provide corrective suggestions  through  the  design  of  experiments  by  ANOVA  method.  The  results  of  the experiment  with  the  design  of  interaction  factor  ANOVA  showed  that  long  combustion products,  glazed  composition  and  temperature  of  the  combustion  products  provide  a significant effect on the amount of product defects
Analisis Pengendalian Kualitas Produk Sanitary Ware Dengan Pendekatan Metode FMEA di PT. XYZ Khawarita Siregar; Syahrul Fauzi Siregar
Media Teknika Vol 11, No 1 (2016)
Publisher : Sanata Dharma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/mt.v11i1.508

Abstract

PT. XYZ is a company engaged in manufacturing of sanitary ware products. Various obstacles are faced by PT. XYZ in the course of its production, one of which is the problem of the quality of products produced from every production process. Based on historical data from July 2014 June 2015, the percentage of defect for C models squat toilets reached 20.26%. The company wants the upper limit of defects products only reached 12% for each period of production. Based on previous research, there are two dominant types of defects are cracked/broken and uneven color. Therefore needed improvement through analysis of quality control approach FMEA method and ANOVA. The result of FMEA for cracked/broken defects obtained failure mode is the temperature and duration of combustion products are not appropriate (RPN numbers amounted to 648) and for uneven color obtained failure mode is glazed improper composition (RPN numbers of 576). This study also will provide corrective suggestions through the design of experiments by ANOVA method. The results of the experiment with the design of interaction factor ANOVA showed that long combustion products, glazed composition and temperature of the combustion products provide a significant effect on the amount of product defects
CURE CHARACTERISTICS AND CROSSLINK DENSITY OF NATURAL RUBBER/STYRENE BUTADIENE RUBBER BLENDS Indra Surya, Syahrul Fauzi Siregar
Jurnal Teknik Kimia USU Vol 3, No 4 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.37 KB) | DOI: 10.32734/jutek.v3i4.9078

Abstract

By using a semi-efficient vulcanization system, the cure characteristics and crosslink density of natural rubber/styrene butadiene rubber (NR/SBR) blends were studied with a blend ratio from 0 to 100% rubber. The scorch time, optimum cure time, and torque difference value of the blended rubber compounds were determined by using the Moving-Die Rheometer (MDR 2000). The crosslink density was determined by the Flory—Rehner approach. Results indicate that the scorch and cure times, ts2 and t90, of the NR/SBR blends increased with increasing the SBR content. Whilst, the maximum values of torque difference and crosslink density were performed by the NR/SBR blend with a blend ratio of 75/25.
CURE CHARACTERISTICS AND CROSSLINK DENSITY OF NATURAL RUBBER/STYRENE BUTADIENE RUBBER BLENDS Indra Surya; Syahrul Fauzi Siregar
Jurnal Teknik Kimia USU Vol. 3 No. 4 (2014): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.37 KB) | DOI: 10.32734/jtk.v3i4.1644

Abstract

By using a semi-efficient vulcanization system, the cure characteristics and crosslink density of natural rubber/styrene butadiene rubber (NR/SBR) blends were studied with a blend ratio from 0 to 100% rubber. The scorch time, optimum cure time, and torque difference value of the blended rubber compounds were determined by using the Moving-Die Rheometer (MDR 2000). The crosslink density was determined by the Flory—Rehner approach. Results indicate that the scorch and cure times, ts2 and t90, of the NR/SBR blends increased with increasing the SBR content. Whilst, the maximum values of torque difference and crosslink density were performed by the NR/SBR blend with a blend ratio of 75/25.
Co-Authors Indra Surya, Indra Khawarita Siregar Khawarita Siregar