Abstract
PT.Viccon Modren Industries is a company engaged in the brick industry light . Problems often arise during the process of making light brick is a lightweight brick compressive strength is not in accordance with company standards for ˃3,50 N / mm² , so the quality is not optimal light brick .
 
 In an effort to overcome these problems , it is necessary to control the production of Online Quality Control with Statistical Process Control methods to identify the root of the problems that occur in the production of lightweight brick . Statistical tools in Statistical Process Control methods include check sheets , Pareto charts , cause-effect diagrams , and maps control p . Then the data Statistical Process Control is integrated with the Taguchi method as Offline Quality Control to be used as a parameter in determining the factors that have significant influence in the optimization of compressive strength of lightweight brick.
 
 Based on the research showed that the factors significantly influence the light brick compressive strength is the amount of cement and gypsum number . Combination level of the factors that resulted in the average value and variance of compressive strength of lightweight brick that is optimal is the same , namely the setting factor water volume at level 2 for 150 Liter ( A2 ) , factor the amount of silica sand on level 2 of 550 Kg ( B2 ), cement jumalah factor on level 3 of 350 Kg ( C3 ) , as well as gypsum julah factor on level 3 of 300 Kg ( D3 ).
Highlights
In an effort to overcome these problems, it is necessary to control the production of Online Quality Control with Statistical Process Control methods to identify the root of the problems that occur in the production of lightweight brick
The data Statistical Process Control is integrated with the Taguchi method as Offline Quality Control to be used as a parameter in determining the factors that have significant influence in the optimization of compressive strength of lightweight brick
Based on the research showed that the factors significantly influence the light brick compressive strength is the amount of cement and gypsum number
Summary
Tahap identifikasi masalah diawali dari menentukan area penelitian, latar belakang masalah, perumusan masalah, tujuan dan manfaat penelitian. Membuat suatu ringkasan daftar atau tabel yang mencatat frekuensi kejadian dari masalah yang telah diteliti dengan menggunakan formulir pengumpulan data atau lembar periksa. Penelitian ini peneliti ingin mengetahui pengaruh penggunaan bahan material untuk dijadikan bata ringan dengan kuat tekan yang tinggi dikombinasikan dengan faktor terkendali lainnya dalam suatu rangkaian percobaan menggunakan eksperimen Taguchi. B. Tujuan dan manfaat penelitian, Tujuan yang ingin dicapai dalam penelitian ini adalah mengidentifikasi faktor - faktor yang berpengaruh terhadap kekuatan bata ringan yang dihasilkan berdasarkan uji kuat tekan, menentukan setting level terbaik dari faktor-faktor yang berpengaruh terhadap kekuatan bata ringa berdasarkan uji kuat tekan, serta mempelajari pengaruh penggunaan bahan material sebagai penguat dalam pembuatan bata ringan berdasarkan uji kuat tekan. Langkah pertama yang dilakukan untuk menganalisa kualitas secara statistik adalah membuat lembar periksa (check sheet). Pembuatan lembar periksa berguna untuk mempermudah proses pengumpulan data tentang jumlah produksi dan produk yang tidak sesuai dengan standar mutu. Diagram pareto dimulai dengan penyusunan lembar data pembuatan diagram pareto seperti ditunjukkan pada Tabel 2 dan ga,bar 1
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