Select corrosion-resistant materials based on the type of medium

在實(shí)際的生產(chǎn)運(yùn)用中，電磁閥所面對(duì)的介質(zhì)種類是多種多樣的，即使是同一種介質(zhì)，在壓力、溫度和濃度不同的情況下，材料的腐蝕速度也有差異。例如，鋁在濃度80%以上的濃硝酸中腐蝕性很強(qiáng)，但是在中、低濃度的硝酸中腐蝕并不嚴(yán)重。而碳鋼在濃度為50%的硫酸中腐蝕更為嚴(yán)重，當(dāng)濃度達(dá)到90%以上時(shí)，腐蝕卻急劇下降。所以，在購買電磁閥產(chǎn)品時(shí)，可以具體分析介質(zhì)的種類，以及不同濃度介質(zhì)對(duì)材料的腐蝕程度，也可直接向廠家進(jìn)行咨詢。

In practical production applications, electromagnetic valves face a variety of media types, and even for the same medium, the corrosion rate of materials varies under different pressures, temperatures, and concentrations. For example, aluminum is highly corrosive in concentrated nitric acid with a concentration of over 80%, but corrosion is not severe in medium to low concentrations of nitric acid. Carbon steel, on the other hand, exhibits the most severe corrosion in sulfuric acid at a concentration of 50%. However, when the concentration reaches over 90%, the corrosion sharply decreases. Therefore, when purchasing solenoid valve products, specific analysis of the type of medium and the degree of corrosion of materials by different concentrations of medium can be conducted, and the manufacturer can also be consulted directly.

挑選耐腐蝕電磁閥

Selecting corrosion-resistant solenoid valves

耐腐蝕電磁閥是專門針對(duì)具有腐蝕性介質(zhì)所提供的解決方案，很多耐腐蝕電磁閥采用非金屬材料作為電磁閥內(nèi)腔與介質(zhì)的接觸面。像天然橡膠、聚四氯乙烯等材料，不僅具備良好的耐腐蝕特性，只要項(xiàng)目環(huán)境的壓力、溫度符合材料的特性，還起到了節(jié)約貴金屬的作用。

Corrosion resistant solenoid valves are solutions specifically designed for corrosive media. Many corrosion resistant solenoid valves use non-metallic materials as the contact surface between the solenoid valve cavity and the media. Materials such as natural rubber and polytetrachloroethylene not only have good corrosion resistance characteristics, but also play a role in saving precious metals as long as the pressure and temperature of the project environment meet the characteristics of the materials.

電磁閥表面處理電磁閥表面處理可以分為熱噴涂和噴刷涂料。熱噴涂是為設(shè)備表面添加防護(hù)層的一種一種技術(shù)之一。熱噴涂是利用高能源密度熱源，如氣體燃燒火焰、電弧、等離子弧、電熱、氣體爆炸等，將金屬或非金屬材料加熱熔融后，以霧化的形式噴射到經(jīng)預(yù)處理的基本表面，形成噴涂層。熱噴涂能提高電磁閥表面的耐腐蝕、耐磨損、耐高溫等特性，延長產(chǎn)品使用壽命。

The surface treatment of electromagnetic valves can be divided into thermal spraying and painting. Thermal spraying is one of the technologies that adds a protective layer to the surface of equipment. Thermal spraying is the use of high energy density heat sources, such as gas combustion flames, arcs, plasma arcs, electric heating, gas explosions, etc., to heat and melt metal or non-metallic materials, and spray them in the form of atomization onto the pre treated basic surface, forming a spraying layer. Thermal spraying can improve the corrosion resistance, wear resistance, high temperature resistance and other characteristics of the surface of electromagnetic valves, and extend the service life of products.

噴刷涂料則是一種較為普遍的方法，涂料屬于非金屬材料，涂在金屬表面或內(nèi)腔，可以有效隔絕介質(zhì)和大氣，達(dá)到防腐目的。控制腐蝕環(huán)境控制腐蝕環(huán)境主要是針對(duì)電磁閥所在的工作環(huán)境而言，例如可以有效控制環(huán)境中的灰塵、水蒸氣、煙霧和有毒氣體等，保持環(huán)境的干凈和干燥。

Spraying paint is a common method, which belongs to non-metallic materials. When applied to metal surfaces or cavities, it can effectively isolate the medium and atmosphere, achieving anti-corrosion purposes. Controlling the corrosive environment is mainly aimed at the working environment where the solenoid valve is located, such as effectively controlling dust, water vapor, smoke, and toxic gases in the environment, and maintaining a clean and dry environment.

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