Method for drying lacquers and other coatings on metal or non-metal
individual components or assemblies using microwaves
    3.
    发明授权
    Method for drying lacquers and other coatings on metal or non-metal individual components or assemblies using microwaves 失效
    使用微波在金属或非金属单独组件或组件上干燥漆和其他涂层的方法

    公开(公告)号:US5974687A

    公开(公告)日:1999-11-02

    申请号:US82387

    申请日:1998-05-20

    IPC分类号: F26B3/34 F26B3/347

    CPC分类号: F26B3/347 F26B3/343

    摘要: In a method for drying coating films on coated components, microwaves are generated by at least one magnetron (3A) in at least one microwave generator module (3) and introduced into a drying chamber (2A) through one or more waveguides (4). Air or another gas is blown from a blower (5) into the drying chamber (2A). An additive agent comprising a dipolar or polarizable molecular composition is mixed into the gas to form a gas mixture within the drying chamber (2A). The coated components (9) are placed into the drying chamber (2A) in a batch or continuous flow-through process. The microwave energy vibrationally excites and heats the additive agent in the gas mixture, which in turn heats the coating film (9') on the components (9). Alternatively, the additive agent may be mixed or applied directly in the coating film substance, so as to achieve direct heating of the coating film, or so as to evaporate from the coating film into the gas to form the gas mixture. The gas is preferably air, and the additive agent is preferably water vapor in a prescribed and controlled relative proportional content within the range from 20% to 90%, which is maintained within the drying chamber. The component may be a metal component or a non-metal component, and the coating may be a water-thinnable or solvent-containing one-, two-, or more component lacquer based on an epoxy, or a polyurethane, or an alkyde resin, or an acrylic resin. Uniform drying of the coating film is achieved even on components having a complex geometry.

    摘要翻译: 在用于干燥涂覆部件上的涂膜的方法中,通过至少一个微波发生器模块(3)中的至少一个磁控管(3A)产生微波,并通过一个或多个波导(4)引入干燥室(2A)。 空气或另一种气体从鼓风机(5)吹入干燥室(2A)。 将包含偶极或极化分子组合物的添加剂混合到气体中以在干燥室(2A)内形成气体混合物。 涂覆的部件(9)以分批或连续的流通方式被放置在干燥室(2A)中。 微波能量振动地激发并加热气体混合物中的添加剂,其又加热组分(9)上的涂膜(9')。 或者,可以将添加剂直接混合或涂布在涂膜物质中,以实现涂膜的直接加热,或者从涂膜蒸发成气体以形成气体混合物。 气体优选是空气,并且添加剂优选为水蒸汽,其规定和控制的相对比例含量在20%至90%的范围内,其保持在干燥室内。 该组分可以是金属组分或非金属组分,并且涂层可以是基于环氧树脂或聚氨酯或醇酸树脂的可水稀释或含溶剂的一种,两种或多种组分漆 ,或丙烯酸树脂。 即使在具有复杂几何形状的部件上也能够均匀地干燥涂膜。