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- home > Supply > 16Mn insulated joint model _ insulating joints _ Welcome to Hebei billion gold piping
Information Name: | 16Mn insulated joint model _ insulating joints _ Welcome to Hebei billion gold piping |
Published: | 2014-03-21 |
Validity: | 0 |
Specifications: | Limitation |
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Detailed Product Description: | 16Mn insulated joint surface film formation models are actually used industrial metal corrosion insulation joints at all, and these are the surface film formed by the solid corrosion products. The protective effect of the surface film is essential that they should be of sufficient thickness and uniformity, can withstand the transfer reaction between the metal and the media. In the iron-based metal and many other metals, the electronic conductivity of the surface film is much higher than the ionic conductivity. Thus, a redox reaction cathodic limit transfer received much less restrictions than the metal ions. A cathodic reaction occurs is not only the site of the metal and dielectric interface, but also the mask table interface and medium gas pipeline insulation joint, again, the reaction product formed on the film surface OH-, and the PH value of the medium increases. For most large diameter insulated metal joints prices, which will reduce the solubility of the surface film. The reaction led to two non-covered on said metal surface area. Such coverage area depending on the presence or absence of the metal surface is substantially the formation of corrosion products, or, depending on the beginning of the medium from a distance whether the formation of a solid oxide. Depending on the circumstances involved in each part of the reaction can answer this question. Ja represents a metal ion forming rate, Jx is involved in the transfer rate of the reaction components, which leads to the formation of the surface film. When Ja> Jx, the precipitation occurs in the medium. In a high concentration of OH-ions in an alkaline medium passive better, because most low solubility metal hydroxides steel pipes insulated joint cathodic protection system is essential to stress the important components, widely used in steel cathodic protection system piping. As the insulating joint protection system is essential in the role, then the quality of the insulation joints quite stringent requirements. To achieve the first dielectric strength 2500V 50Hz 1 minute without breakdown or arcing. Sleeve using groove weld or soldered directly on the two forms of the catheter, the insulation and the upper and lower tubes securely sealed wrap, which not only ensures good insulation; insulation resistance reaches 1000V dc resistance of ≥ 6MΩ; Secondly achieve in terms of hydrostatic test pressure of 1.5 times the design pressure; tightness test pressure equal to the design pressure; Finally, in terms of non-destructive testing in accordance with JB4730-94 100% of all butt joints ray detection, other pressure welds 100% magnetic particle inspection. 16Mn insulated joint model _ insulating joints _ Welcome to Hebei billion gold piping supplied by Hebei billion gold piping. If you have any questions about this information or consultation, please contact us now! Our Company Name: Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com) Contact: Alan Li Tong, or click on "Business League call" direct dialogue with us! |
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Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 22025 visitor
Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility