Brazing process between PTC ceramic and aluminium alloy within air heated furnace is studied.
研究了采用钎焊方法，在空气加热炉中实现PTC陶瓷材料与铝合金的连接问题。
Both the gas and air are preheated by regenerators, two on each side of the furnace, alternatively heated by the waste gases.
这两种气体和空气预热的再生器，每边两个炉，或者加热的废气。
The metal is cooled in the air, having been heated to a definite temperature in the furnace.
金属在炉子里加热到一定温度后放在空气中冷却。
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