摘要：

A continuous galvanizing manifold for tube and the like includes a main chamber having aligned inlet and outlet orifices through which the tubing passes, said main chamber having a substantially continuous cross section along the major portion of its length and at least one enlarged cross sectional area of limited extent along its top. A molten zinc reservoir is below and in communication with the main chamber. A pump is provided to maintain continuous molten zinc flow between the reservoir and main chamber substantially to fill said major portion of said main chamber and to expose a surface of the zinc in the main chamber at the increased cross sectional area. A drainpipe extending from the increased cross sectional area of the main chamber to below the surface of the molten zinc in the reservoir may be used to insure that the major portion of the main chamber is completely filled, such drainpipe and the clearance between the tube and the inlet and exit orifices acting to return the zinc to the reservoir. The inlet orifice is covered by an entry vestibule connected to the induction heaters. Such entry vestibule contains inert gas and extends below the level of the zinc in the reservoir. The outlet orifice may also be covered by an exit vestibule similarly extending below the level of zinc in the reservoir.

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