Elements affecting the corrosion resistance of channel steel
Classification: Industry News
Dec 11,2024
In the process of channel steel use should be regularly cleaned, in addition to the harmful substances long time private attached to the appearance. Especially in the environment with chloride ions, to prevent chloride ions long time attached to the groove steel appearance and in the water concentration mouth, such as stainless steel used in food industry utensils, each time after contact with food, should be washed, to avoid the effect of chloride ions, damage to the passivation film.
316L stainless steel tube to ensure that the wiring is correct, safety grounding, carefully organize the electrode appearance, repair the electrode point of view, if necessary, can be processed on the lathe, the equipment will be adjusted to the spot welding condition. Organize the workpiece appearance of water, rust, oil and other impurities, wipe the workpiece appearance with industrial alcohol.
According to the above test method after adjusting the combination of different welding current and discharge moment, preparation of welding specimens. Welding current increases, the welding point increases, the bonding force increases, if the current is too large easy to form the weld; discharge moment extension, current density decreases, and reduce the effect of current common, and vice versa, and add the effect of current common.
The raw material of channel steel in the corrosive medium and 316L stainless steel pipe between the barrier effect, blocking the corrosion of 316L stainless steel pipe. It has outstanding corrosion resistance in the pulp and paper production process. And also resistant to marine and corrosive industrial atmospheric corrosion. Then there is no big difference with carbon steel. But both are the higher the carbon content is the worse the cutting function. The new specification of the skill requirements than the old version is higher, the product quality requirements also exceed the old specification.
Film theory that corrosion inhibitors react with corrosive media to generate insoluble compounds, in the 316L stainless steel pipe exterior cloth on a layer of insoluble metal film, the metal shielding effect, blocking the corrosion of the metal. Corrosion inhibition power increases with the concentration of corrosion inhibitor, but when the concentration reaches a certain value, the concentration of corrosion inhibitor increases, corrosion inhibition power instead of decreasing. Such as chromate, dichromate, hydrogen peroxide and other oxidizing corrosion inhibitors belong to this type. At lower temperatures, the corrosion inhibition power is higher. Higher temperatures, adsorption effect decreases, corrosion is aggravated.
Previous:
Related Blog
Contact
E-mail :
hercules@zzduxinban.com
WhatsApp：
+86 17334750006
Address：
Zhengzhou new golden Horse logistics center
