铝板生产厂家

铝卷生产厂家在铝卷成卷前做了哪些工作

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  在卷取前,应做一些预处理工作,以保证卷取表面的清洁。避免残余油脂和润滑剂的存在对涂层表面和使用产生影响。因此,铝卷成型前要对其进行以下几个方面的预处理。
  Before coiling, some pretreatment should be done to ensure that the coiling surface is clean. Avoid the influence of residual grease and lubricant on the surface and use of the coating. Therefore, the pretreatment of aluminium coil before forming should be carried out in the following aspects.
  铝卷生产厂家
  Aluminum coil manufacturer
  首先,可以用热水清洗轧辊。热水清洗主要是清洗基体表面残留的脱脂剂,以确保这些残留物能够溶解在其中,防止这些脱脂剂对基体的二次污染。使用方式以浸洗和喷洗为主。使用的水硬度不宜过高,否则水中的矿物质会在基体表面形成矿物斑点。

铝卷生产厂家
  First, hot water can be used to clean the rolls. Hot water cleaning is mainly to clean the degreaser residues on the surface of the matrix to ensure that these residues can be dissolved in it and prevent the secondary pollution of these degreasers to the matrix. The main usage methods are soaking and spraying. The hardness of water should not be too high, otherwise minerals in water will form mineral spots on the surface of matrix.
  其次,由于预涂线速度快,用于热碱脱脂的脱脂剂通常浓度较高。典型的脱脂剂包括氢氧化钠(NaOH)、碳酸钠(Na2Co3)、硅酸钠(Na2SiO3)、磷酸盐等成分。热碱脱脂工艺一般分两步进行,以保证铝卷基材表面的清洁,常用的方法是喷刷法。
  Secondly, due to the high speed of the pre-coating line, the degreaser used for hot alkali degreasing is usually of high concentration. Typical degreasers include sodium hydroxide (NaOH), sodium carbonate (Na2Co3), sodium silicate (Na2SiO 3), phosphate and other components. Hot alkali degreasing process is usually carried out in two steps to ensure the surface cleanliness of aluminium coil substrate. The commonly used method is spraying method.
  铝卷生产厂家
  Aluminum coil manufacturer
  后,它被钝化。钝化工艺是通过压力喷涂、浸渍涂层或辊涂等方法使钝化剂在基体表面形成转化膜。一般采用加压喷雾方式。钝化液在使用过程中产生的污泥会堵塞喷嘴孔,从而影响喷雾效果。浸镀法虽然解决了这一问题,但钝化液消耗较大。以上两种方法在实际操作中都需要用水清洗过量的钝化液,这将产生废水回收净化的问题。辊涂是佳的钝化施工方法,具有涂膜均匀、经济实用、不需浸出等优点。铬酸盐/氧化底漆是铝板常用的底漆,它含有铬酸盐、铬酸盐、磷酸、促进剂氟化物和钼酸盐。此类处理剂必须添加磷酸,否则不能用于食品饮料铝板的处理。
  Finally, it is passivated. Passivation process is to make the passivator form a conversion film on the surface of the substrate by pressure spraying, impregnation coating or roll coating. Generally, pressurized spray method is adopted. The sludge generated during the use of the passivation fluid will jam the nozzle orifice, thus affecting the spray effect. Although the dipping method solves this problem, the consumption of passivation solution is large. The above two methods need to use water to clean excessive passivation liquid in practical operation, which will cause the problem of waste water recovery and purification. Roller coating is the best passivation method, which has the advantages of uniform coating, economical and practical, and no leaching. Chromate/oxidized primer is a common primer for aluminium plate. It contains chromate, chromate, phosphoric acid, accelerator fluoride and molybdate. Phosphoric acid must be added to this kind of treatment agent, otherwise it can not be used in the treatment of food and beverage aluminium sheet.
  在过去的一年里,我国铝卷产品市场正在逐步完善,彩色铝卷一直在稳步增长。铝盘管在电子、包装、施工、机械等方面的应用。在过去的2012年里,传统的电子设备许多shell或塑料,可能便宜许多,但是生命是短暂的,外壳很容易坏,所以中铝体积的未来发展也能够占领市场,铝盘管制造商将逐渐增加,产品的竞争终归结为技术竞争和品牌竞争。
  In the past year, China's aluminium coil product market is gradually improving, color aluminium coil has been growing steadily. The application of aluminium coil in electronics, packaging, construction, machinery, etc. In the past 2012, many shells or plastics of traditional electronic equipment may be much cheaper, but life is short and the shell is easy to be damaged. Therefore, the future development of SinoAluminum Volume can also occupy the market. Aluminum coil manufacturers will gradually increase, and the competition of products will ultimately be attributed to technology competition and brand competition.
  从整个市场来看,人们对产品的需求仍在增加,这对假冒伪劣产品的抵抗力很强,铝卷也将成为大家产品的一部分,它使大家的产品更美观,更。
  From the whole market, people's demand for high-end products is still increasing, which is very resistant to counterfeit and inferior products. Aluminum coil will also become part of our products, which makes our products more beautiful and high-end.
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