发明名称 Uniform heating furnace - with helical path atmosphere circulation
摘要 In the circular metal heating furnace the atmosphere is injected by gas injection nozzles set into the walls at an angle which imparts to the injected gases a rotational helical path movement and setting up a return stream in the centre region of the chamber. The design is used for furnaces for accurate uniform temp. heat treatment.
申请公布号 DE2111311(A1) 申请公布日期 1972.09.21
申请号 DE19712111311 申请日期 1971.03.10
申请人 KOPPERS-WISTRA-OFENBAU GMBH 发明人
分类号 C21D1/767 主分类号 C21D1/767
代理机构 代理人
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