Topic: research and application of corrosion-resistant hinge of corrosion-resistant fume hood
With the development of modern chemical industry, more and more chemicals are used in the laboratory, and the requirements for laboratory equipment are getting higher and higher. Among them, the anti-corrosion fume hood is one of the essential safety facilities in the laboratory, and its importance is self-evident. However, in the process of use, the chemicals such as acid and alkali have strong corrosive effects, which will affect various parts of the fume hood, especially the hinge, which is very easy to be damaged. Therefore, it is particularly important to improve the corrosion resistance of the hinge of the fume hood.
First, the importance of corrosion-resistant hinges
There are many factors to be considered in the design and manufacture of fume hoods, such as material selection, structural design, safety performance, etc., among which the most important is corrosion resistance. Because once corrosion occurs, it will not only affect the normal use of the fume hood, but also cause potential safety hazards. As an important part of connecting door panels, hinges are directly related to the safety and stability of the whole fume hood. Therefore, how to improve the corrosion resistance of hinge has become an urgent problem to be solved.
Second, the material selection of corrosion-resistant hinge
At present, the common corrosion-resistant hinges on the market are mainly made of stainless steel or alloy materials, both of which have good corrosion resistance. However, in contrast, alloy material is more preferred, because it has higher strength and longer service life besides resisting most chemical corrosion.
Third, the corrosion-resistant hinge process treatment
For hinges with suitable materials, it does not mean that the corrosion problem is completely avoided, and special surface treatment is needed to further enhance its protective effect. For example, a protective film is added to the hinge by electroplating or plastic spraying, so as to effectively isolate harmful factors in the external environment. In addition, sealing ring technology can also be used to prevent liquid from penetrating into the interior and causing corrosion reaction.
Fourth, case analysis
Taking a chemical plant as an example, the ordinary metal hinges used in the factory have been seriously corroded after long-term contact with chemicals, which leads to the failure to open and close the fume hood normally and seriously affects the work progress. Later, after transformation and replacement with stainless steel alloy hinge with special coating, the situation improved obviously, and no similar failure has occurred so far.
In short, in order to ensure the life and property safety of laboratory personnel and the accuracy of experimental data, we must pay attention to the material selection and processing quality control of various components of fume hoods, especially the moving parts, to ensure that they can run stably in harsh environments for a long time.
Rec. Prods.
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