Tunnel kiln - Tunnel kiln (English name)

Japanese: トンネル窯 - トンネルがま（英語表記）tunnel kiln

A kiln for continuous firing of ceramics, refractory materials, etc. A cart loaded with the ware to be fired is placed into one side of a tunnel-shaped kiln, and while it moves through the tunnel, it is preheated, fired, and cooled in sequence, before being sent out from the other side. The advantages of this method include the fact that all processes are carried out continuously, making it possible to mass-produce homogeneous products, and it is highly economical in terms of fuel consumption and cost savings. However, it also has disadvantages such as high equipment costs and the difficulty of adjusting production because the composition of the manufactured products is fixed. It is mainly used to manufacture industrial products.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

陶磁器，耐火物などの連続焼成用窯。焼成する器物を積んだ台車をトンネル形の窯の一方から入れ，トンネル内を移動する間に余熱，焼成，冷却を順次に行い，反対側出口から送り出す方式のもの。全工程が連続的に行われ，均質な製品が大量に生産できるほか，燃費や経費の節約など経済性も高いなどの利点がある。しかし設備費が割高で，製造製品の構成が固定されるため，生産調整がむずかしいなどの欠点もある。おもに工業製品の製造に使用される。

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