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Case Study of Indirect Heating Exhaust Heat Circulation Drying Furnace

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dry oven1.jpg

Case Study of Indirect Heating Exhaust Heat Circulation Drying Furnace

dry oven1.jpg
dry oven1.jpg

Eliminate "yellowing" and "gas checking" caused by the drying oven! Enable stable painting quality and cost reduction!

【Customer Concerns】 - Considering the installation of additional drying ovens due to increased production volume - Current direct heating drying method causes defects such as yellowing, leading to variability in painting quality - Unsure about what type of drying oven would be best 【NCC's Proposal】 Proposing an "indirect heating drying oven" where the furnace and drying chamber are separated, preventing combustion gases from entering the oven and oxidizing the paint film 【Implementation Effects and Feedback】 - No combustion gases enter the oven, resulting in zero painting defects during drying - Installation of circulation fans achieves stabilization of painting quality - High heat exchange rate of 85% significantly contributes to reducing consumption costs

Related Link - https://ncc-nice.com/ncc-coating/case-studies/coat…

basic information

【Product Details】 To propose a drying oven suitable for the site, we first conducted an analysis to understand the causes of defects. As a result, it was found that the direct heating method allowed combustion gases to enter the oven, causing oxidation of the paint film, leading to yellowing and gas checking, which resulted in defects. Therefore, we proposed the introduction of an indirect heating drying oven. By installing a circulation fan in the oven, the internal temperature can be made uniform, preventing defects such as uneven baking and yellowing, which is expected to ensure stable painting quality and improve production efficiency.

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- Improvement of painting defects - Increase in productivity - Cost reduction - Update of drying furnace

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NCC Original Hot Air Circulation Drying Oven

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[Case Studies of Equipment Introduction] No. 1 in Solving Manufacturing Site Issues! NCC Corporation, Nagano Prefecture

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Since its establishment in 1958, the company has focused on industrial paints and fine chemical products. In 1964, it established Minami-Shin Custom Co., Ltd. (now CC-G Co., Ltd.) as a research factory, where it accumulated knowledge and built expertise in specialized areas by using its own products. This accumulated know-how has been recognized, leading to an expansion of the market throughout Nagano Prefecture, while simultaneously, customer requests have become increasingly diverse. The fine chemical sector, including industrial chemicals and chemical products, has evolved to include high-tech materials such as electronic materials, as well as efficient production and recycling systems to handle them. The establishment of a consistent supply system for hazardous and highly toxic materials, as well as the addition of functions for paint color matching, has also been driven by customer needs. Additionally, in response to requests from local customers, the company has ventured into construction fields utilizing chemical methods and chemical construction materials, demonstrating an advisory function from a comprehensive perspective that differs from traditional trading companies.

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