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怎么判断花纹板的质量好坏?

  有0人浏览   日期:2019-11-05

文章摘要: 花纹板......

怎样判断花纹板的质量好坏?


  1. 首先,我们在看铝板的时候,首先要停止标识检查:铝合金型材和包装上能不能标注产品合格证和消费许可证号等。

  One. First of all, when we look at the aluminum plate, we should first stop the identification inspection: whether the product qualification certificate and consumption license number can be marked on the aluminum alloy profile and packaging.

  2.外观质量:除清洁外,铝合金型材不允许出现裂纹、剥落、腐蚀、气泡等缺陷,不允许出现腐蚀斑、电灼伤(氧化电极点)、黑点、氧化膜等缺陷。这还取决于铝型材的颜色和光泽以及是否存在色差。颜色越深,含有的杂质越多。

  2. Appearance quality: in addition to cleaning, no crack, peeling, corrosion, bubble and other defects, no corrosion spot, electric burn (oxidation electrode point), black spot, oxide film and other defects are allowed for aluminum alloy profiles. It also depends on the colour and gloss of the aluminium profile and whether there is a colour difference. The darker the color, the more impurities it contains.

  3.氧化膜厚度:阳极氧化铝型材的氧化膜是通过铝型材两端和酸碱溶液通电而形成的。它具有保护和装饰作用,可由涡流测厚仪停止普通氧化膜厚度在8~15μm之间。氧化膜越厚,其耐腐蚀性越高,氧化成本越高。

  Three. Thickness of oxide film: the oxide film of anodized aluminum profile is formed by electrifying both ends of aluminum profile and acid-base solution. It has the function of protection and decoration. The thickness of common oxide film can be stopped between 8 and 15 μ m by eddy current thickness gauge. The thicker the oxide film, the higher the corrosion resistance and the higher the oxidation cost.

  4.封孔质量:阳极氧化后,铝型材外表面有许多缝隙。如果密封不停止或不好,铝型材的耐腐蚀性就会降低。常用的封孔质量检测方法有酸浸法、导纳法和磷酸丁酸法。酸浸法是现场检测中常用的方法。铝型材外表面用丙酮擦洗干净,去除油污和灰尘,外表面滴入体积比为50%的硝酸,轻轻擦洗,1分钟后用清水冲洗干净。然后擦干。往表面滴一滴医用紫罗兰1分钟后,擦去紫罗兰色并彻底清洁表面。仔细检查留下的痕迹。封孔不好的铝型材会留下明显的痕迹。痕迹越重,封孔质量越差。

  Four. Sealing quality: after anodizing, there are many cracks on the outer surface of aluminum profile. If the seal does not stop or is not good, the corrosion resistance of the aluminum profile will be reduced. The commonly used methods of sealing quality are acid leaching, admittance and phosphoric acid butyric acid. Acid leaching is a common method in field detection. The outer surface of the aluminum profile shall be cleaned with acetone to remove oil and dust. The outer surface shall be dripped with nitric acid with volume ratio of 50%. The aluminum profile shall be cleaned with clean water after 1 minute. Then dry. Drop a drop of medical violet on the surface for 1 minute, wipe off the violet color and thoroughly clean the surface. Check the traces carefully. The aluminum profile with poor hole sealing will leave obvious traces. The heavier the trace, the worse the sealing quality.

  5.硬度:普通牌号6063铝型材硬度在8~12hw之间,用维氏硬度计测定。影响铝合金型材硬度的主要原因有两个:?原始数据中杂质太多,人工时效的温度和时间控制不好。

  5. Hardness: the hardness of ordinary 6063 aluminum profile is between 8-12hw, measured by Vickers hardness tester. There are two main reasons that affect the hardness of aluminum alloy profiles? There are too many impurities in the original data, so the temperature and time of artificial aging are not well controlled.

  6.耐腐蚀性:该指标主要影响铝型材的使用寿命。耐腐蚀性检验包括铜加速乙酸盐雾试验和碱滴试验。介绍了碱滴试验。即,在35℃1℃下,将约10mg和100g/L NaOH溶液滴在铝型材外部,目视检查液滴是否发生腐蚀,并计算其氧化膜的穿透时间。这个测试很容易在夏天停止户外的粗步判断。为了保证检测的准确性,必须在严格的实验室要求下停止检测。

  6. Corrosion resistance: this index mainly affects the service life of aluminum profiles. Corrosion resistance test includes copper accelerated acetic acid salt spray test and alkali drop test. The alkali drop test is introduced. That is, at 35 ℃ and 1 ℃, drop about 10mg and 100g / L NaOH solution on the outside of the aluminum profile, visually check whether the drop corrodes, and calculate the penetration time of its oxide film. It's easy for this test to stop rough outdoor judgment in the summer. In order to ensure the accuracy of testing, testing must be stopped under strict laboratory requirements.

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