信息摘要:
彩涂板基板的磨刷处理是通过碱洗液的溶解与刷子的机械摩擦等双重作用来去除污垢。彩涂板生产线的磨刷处理是设计成机械式的,磨刷设备也叫刷洗机,通常由旋转刷辊、刷辊贮藏箱刷辊电动控制装置、碱液喷管循环系统组成。
暦刷处理工序一般设置在一二级脱脂段之间,采用特制的刷辊材料,配合碱液冲刷,对彩涂板基板上下表面进行旋转式磨刷,其旋转方向与钢带...
彩涂板基板的磨刷处理通常采用的方式
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彩涂板基板的磨刷处理是通过碱洗液的溶解与刷子的机械摩擦等双重作用来去除污垢。彩涂板生产线的磨刷处理是设计成机械式的,磨刷设备也叫刷洗机,通常由旋转刷辊、刷辊贮藏箱刷辊电动控制装置、碱液喷管循环系统组成。
暦刷处理工序一般设置在一二级脱脂段之间,采用特制的刷辊材料,配合碱液冲刷,对彩涂板基板上下表面进行旋转式磨刷,其旋转方向与钢带运行方向相同或相反,通过毛刷与基水胶院板表面的高速运动所产生的摩擦力,除去彩涂板基板表面黏附的脏物和粗糙的氧化物,使基板表面具有活性。
刷辊通常有两种类型,压缩型刷子和硬毛型刷子。压缩型刷子是将粒度很细的碳化硅或氧化铝磨料粘结在尼龙丝上,然后将这种尼龙丝制成纤维板或软垫,经固化后切成一段段圆环筒套,装在一根辊芯上制成刷辊。硬毛型刷子的刷体是用含有碳化硅磨料的尼龙丝编绕而成的。磨料粒度不同,用途也不同,两种刷子相比较各有其优缺点。压缩型刷子因点是由于尼龙丝较细容易撕裂,使用寿命短。硬毛型刷子的显著优点是尼龙丝耐磨性好,含磨料粒度很细,并且刷辊对被刷板面的压力较大,因此刷过的基板表面均匀一致,其缺因而使用寿命长,大约是压缩型刷子的几倍,但是这种刷子不宜用于处理薄板基板,板薄不仅处理效果不理想,而且还会造成基板卷曲。在使用刷辊式刷洗机的过程中,为防止尼龙丝过热而熔化,应不断向板面喷淋碱液,以便冷却和润湿。
The grinding and brushing treatment of the substrate removes dirt through the dual action of dissolving the alkali washing solution and mechanical friction of the brush. The brushing treatment of color painting production line is designed as mechanical, and the brushing equipment is also called brushing machine. It usually consists of rotary brushing roller, brushing roller electric control device of brushing roller storage box and alkali nozzle circulation system.
The process of drying and brushing is usually set between the first and second degreasing stages. The special material of brushing roll, together with alkali washing, is used to rotate the upper and lower surfaces of the substrate. The direction of rotation is the same or opposite to that of the steel strip. The friction produced by the high-speed movement of the brush and the surface of the base water glue yard plate is used to remove the substrate. Surface adherent dirt and rough oxides make the substrate surface active.
There are usually two types of brush rollers, compression brush and bristle brush. Compression brushes are made by bonding fine SiC or Alumina abrasives to nylon filaments, then making fiberboard or cushion from the nylon filaments, cutting them into a segment of ring cylinder sleeve after solidification, and mounting them on a roll core to make brush rolls. The brush body of the hard bristle brush is made of nylon wire containing silicon carbide abrasive. Abrasive particle size is different, the use is different, the two brushes have their own advantages and disadvantages. Compression brush is because nylon filament is thin and easy to tear, short service life. The notable advantages of hard brush are good wear resistance of nylon filament, fine abrasive particle size and high pressure of brush roll on the surface of the brushed board. Therefore, the surface of the brushed substrate is uniform and the service life of the brush is long, which is about several times longer than that of the compressed brush. However, this brush should not be used to treat the thin plate substrate. The treatment effect is not ideal, and will cause the substrate to curl. In order to prevent nylon filament from overheating and melting in the process of using brush roller scrubber, alkali solution should be continuously sprayed on the surface of the plate for cooling and wetting.