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关于镀锌彩涂卷的附着性

返回列表 来源: 发布日期: 2020.11.25

镀锌彩涂卷主要用于轻工、商品包装、家电、农牧渔业等行业。上世纪90年代,特别是近年来,随着国民经济的快速发展和人民生活水平的不断提高,消费结构发生了根本性变化。比如镀锌彩涂卷建筑业的繁荣、汽车产量的逐年增加、家用电器的广泛普及,都离不开镀锌板,这大大增加了镀锌板的市场需求。

镀锌彩涂卷由建筑、家电、机电、交通运输、室内装饰、办公设备等行业组成。彩涂辊内的电路应整齐美观地敷设在PVC管(槽)内,电气配置应符合设计要求,线路无绝缘老化和延长现象。它具有无污染、耐候性好、耐腐蚀、加工性高等特点。广泛应用于建筑、家电、交通运输、包装、机械加工、室内装饰、医疗、汽车工业等领域。在各行业不断发展的形式下,用户对彩涂辊的选择也越来越多,然而,随着厂家的不断崛起。
在目前市场上镀锌彩涂卷的供应也是多样化的,很多用户无法做出很好的选择。在冷轧过程中,由于轧辊与铝板表面的摩擦和轧制,细小的氧化铝粉末会脱落并吸附在铝板表面,轧制油及其伴生的悬浮物会残留在铝板表面,对加工产生不利影响彩色镀铝线圈、镀膜等成品。
此时,需要用特殊的清洗装置进行清洗。镀锌量是一种常用的表示镀锌层厚度的有效方法。镀锌量单位为g/m2。镀锌层的钝化处理可以减少在湿温储运条件下的开裂腐蚀(白锈)。然而,这种化学处理的耐腐蚀性有限,阻碍了大多数涂层的附着力。这种处理方法不适用于锌铁合金镀层。除表面处理外,生产工厂通常对其他类型的镀锌层进行钝化处理。

Galvanized coil is mainly used in light industry, commodity packaging, home appliance industry, agriculture, animal husbandry and fishery. In the 1990s, especially in recent years, with the rapid development of the national economy and the continuous improvement of people's living standards, the consumption structure has undergone fundamental changes. For example, the prosperity of the construction industry, the annual increase of car production, and the wide popularization of household appliances are inseparable from galvanized sheet, which greatly increases the market demand for galvanized sheet.

By the construction, home appliances, mechanical and electrical, transportation, interior decoration, office equipment and other industries. The electric circuit inside the color coated roll shall be laid in PVC pipe (slot) in an orderly and beautiful way; the electrical configuration shall meet the design requirements; the line shall be free of insulation aging and extension. It has the characteristics of pollution-free, excellent weather resistance, corrosion resistance, high processing and so on. It is widely used in construction, household appliances, transportation, packaging, mechanical processing, interior decoration, medical treatment, automobile industry and other fields. In the form of continuous development of various industries, the selection of color coated roll users are also increasing, however, with the continuous rise of manufacturers.
In the current market supply of color coated roll is also diverse, many users can not make a good choice. In the process of cold rolling, due to friction and rolling between roller and aluminum plate surface, fine aluminum oxide powder will fall off and adsorb on the surface of the aluminum plate, and the rolling oil and its associated suspended components will remain on the surface of aluminum plate, which will have adverse effects on the processing of color coated aluminum coil, coating and other finished products.
At this time, it needs to be cleaned by a special cleaning device. The amount of zinc plating is an effective method commonly used to express the thickness of zinc coating on galvanized sheet. The unit of galvanizing quantity is g / m2. The passivation treatment of zinc coating can reduce the cracking corrosion (white rust) under the condition of moisture temperature storage and transportation. However, the corrosion resistance of this chemical treatment is limited and hinders the adhesion of most coatings. This kind of treatment is not used in zinc iron alloy coating. Except for finishing the surface, the production plant passivates other types of zinc coating as a routine.

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