Abstract At present, the company free of charge in the heat, kat range stop preventative maintenance, which costs a lot each month. Then research to study the reduction of quantity.The use of natural gas in the heating pause preventative maintenance with group activities, quality control tool used to study how it works, and the appropriate temperature control the consumption of nature could be kat helps reduce production costs, even lower. The studies have used the tools to analyze problems using Analysis to find out Why the problem Why and correct the fault in the operating point. The main problem was to adjust the working process. From there, the fire kilns usually heated stove that will make studying the appropriate temperature by temperature variations inside the oven during a preventative maintenance. 1-5 hours, at 750 ºC, 800 ºC ºC ºC, 850, 900, 950 ºC 0 ºC and 1, respectively, with the 6 trial experiments to find out how to control the operation of the oven, is effective and can help reduce the consumption of natural kat. The results showed that modify how it works from a hot oven, the oven can be changed to a level that will reduce the consumption of natural heat, kat during the stop, preventative maintenance and performance experiment also found that the temperature inside the oven that is most suitable to reduce the consumption of natural is kat is at 800 ºC temperature control, which can reduce the consumption of natural gas up to 3667 Nm3. accounted for expenses that can be decreased 31139 baht.
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