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镀锌方管在玻璃幕墙中无限魅力!

来源:http://www.n-impact20.com

大富彩票平台【 发布于:2019-05-07 16:52:27 】


一、镀锌方管板的内在因素,我们都知道的是镀锌方管中镍含量低下,镀锌方管的钝化性能就低,所以镀锌方管中马氏体含量和铬跟镍的含量对镀锌方管板表面的钝化性能影响很大。

First, the inherent factors of galvanized square tube sheet, we all know that the low nickel content in galvanized square tube, galvanized square tube passivation performance is low, so the martensite content and chromium and nickel content in galvanized square tube have a great impact on the passivation performance of galvanized square tube sheet surface.

二、镀锌方管板使用环境中的介质,镀锌方管的钝化膜在热力学中是属于受抑制的亚稳态架构,它所发挥的保护作用于所处的环境中的介质有关。但是不论在哪种环境中使用,在使用的过程中,都要对镀锌方管板进行定期的清洗来除去镀锌方管板表面附着的有害物质。

Secondly, the passivation film of galvanized square tube belongs to the restrained metastable structure in thermodynamics, and its protective effect is related to the medium in the environment. However, no matter what kind of environment is used, in the process of use, galvanized square tube sheets should be cleaned regularly to remove harmful substances attached to the surface of galvanized square tube sheets.

大富彩票平台三、镀锌方管板的表面清洁度。对于镀锌方管合金来说,镀锌方管的表面越光滑粗糙度越低,那么该镀锌方管表面就越难有异物附着上,异物不易附着,那么对镀锌方管表面的腐蚀也就降到了低点,所以镀锌方管表面要尽量采用精加工的表面。另外镀锌方管板的后的钝化后的清洗也应该认真进行,这样才能使残余的酸液促进阳极反应,保护膜层的完整性,保证镀锌方管板的表面的耐腐蚀性增强。

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3. Surface cleanliness of galvanized square tube sheets. For galvanized square tube alloys, the smoother the surface of galvanized square tube is, the lower the roughness is, the harder it is for the galvanized square tube surface to be adhered to by foreign bodies, and the foreign bodies are not easy to adhere to, so the corrosion on the galvanized square tube surface will be reduced to the lowest point, so the galvanized square tube surface should adopt the finishing surface as far as possible. In addition, the final passivation cleaning of galvanized square tube sheet should also be carried out carefully, so that the residual acid can promote the anodic reaction, protect the integrity of the film, and ensure that the corrosion resistance of the galvanized square tube sheet surface is enhanced.

四、 氯离子,氯离子对镀锌方管板镀膜的危害是极大的,所以,我们在对镀锌方管板的表面进行钝化过程中要严格控制钝化液中的氯离子的含量,基于氯离子对镀锌方管板的危害性。很多钝化用化学材料对氯离子都有着限量的要求,在配置钝化液用水和清洗用水也对氯离子有着严格的水质要求,来保证钝化成品中不含有氯离子。

4. Chloride ion and chloride ion are very harmful to galvanized square tube sheet. Therefore, we should strictly control the chloride ion content in the passivation solution during the passivation process of galvanized square tube sheet, based on the harmfulness of chloride ion to galvanized square tube sheet. Many passivation chemicals have limited requirements for chloride ions. Water for passivation solution and cleaning water also have strict water quality requirements for chloride ions to ensure that the passivation products do not contain chloride ions.

镀锌方管在氯离子存在下的环境中,腐蚀很快,以至超越普通的低碳钢。关于接受流体压力的钢管都要阻止液压实验来检修其耐压才能和质量,在划定的压力下不发作走漏、浸湿或收缩为合格,有些钢管还要依据尺度或需方请求阻止卷边实验、扩面实验、压扁实验。

Galvanized square tubes are corroded rapidly in the presence of chloride ions, even exceeding ordinary low carbon steel. As for the steel pipes receiving fluid pressure, they should be prevented from hydraulic test to repair their pressure-resisting ability and quality. Under the specified pressure, they should not leak, soak or shrink to qualified. Some steel pipes should also be prevented from edge-rolling test, flattening test and flattening test according to scale or requirement.



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