AC-3用于陰極腐蝕保護的犧牲鋁陽極AC-3 Sacrifice aluminum anode for cathode corrosion protection
犧牲陽極保護陰極,這里指外加更活潑的金屬,當形成原電池的時候,更活潑的金屬優先充當負極,失去電子形成陽離子,這樣就保護了原來的金屬。
鋁合金犧牲陽極有極高的電化學機能、單位重量的陽極材料發電量大,約為鋅陽極的三倍,鎂陽極的兩倍。好比船舶底下加Zn板,在海水作電解質溶液的情況下,Zn優先反應,保護Fe。在海水及含有氯離子的其他介質中,機能良好,發出電流的自調節能力強。lb17184466
鋅合金犧牲陽極自溶性好,電流效率高,陽極發生電流的自調節機能好。
陰極保護技術是防止金屬化學腐蝕最有效的方法之一。它通過對被保護的金屬施加一定的陰極電流,使其產生陰極極化,當金屬的電位負于某一電位值時,腐蝕的陽極溶解過程就會得到有效的抑制。根據提供陰極電流的方式不同,陰極保護又分為犧牲陽極發和外加電流法兩種。犧牲陽極法是一種電位更負的金屬或合金與被保護金屬結構物電性連接,通過電負性金屬或合金的不斷消耗溶解,向被保護物提供保護電流,使金屬結構物得到保護。
在管線上進行維搶修、改擴建、改線換管、更換閥門等作業時,都要進行天然氣放空操作。目前我國的天然氣放空技術一般是將天然氣直接燃燒或排放,這不僅造成巨大的經濟損失,而且對自然環境和人身安全具有威脅。國外的天然氣回收技術發展目前以比較成熟,可以替代或加速管道計劃性放空。
公司的主要產品有:
☆鎂合金犧牲陽極系列:鎂錳合金犧牲陽極,鐲式鎂合金犧牲陽極,鎂合金半連續鑄棒材、鎂合金板材
☆鋁合金犧牲陽極系列:普通鋁合金犧牲陽極,高效鋁合金犧牲陽極,高活化鋁合金犧牲陽極鐲式鋁合金犧牲陽極
☆鋅合金犧牲陽極系列:船用鋅合金犧牲陽極
☆配套產品:參比電極,測試樁,填包料,長效參比電極,便攜式參比電極,普通測試樁水泥測試樁
☆外加電流陰極保護:高硅鑄鐵陽極,深井陽極,
犧牲陽極、鎂合金犧牲陽極、鋁合金犧牲陽極、鋅合金犧牲陽極、鎂帶、鋅帶、參比電極、測試樁、鎂合金棒、鋅接地電池、第二代防雨防盜測試樁、絕緣接頭、以及陰極保護輔助材料,長效參比電極和外加電流用的高硅鑄鐵陽極、恒電位儀等產品。lb17184466
According to the statistical analysis of oil and gas long pipeline accidents in the past 40 years, the results show that external influence, corrosion, material defects, etc. are the main factors for the failure of oil and gas pipelines. Corrosion is one of the main causes of oil and gas pipeline accidents. For oil and gas pipelines, accidents such as leakage and pipeline rupture caused by corrosion are not only seriously lost, but also difficult to repair, and may also cause fire explosions and pollute the environment. Corrosion prevention is an important protection measure. In order to ensure the reliability of the anti-corrosion work, the long-term pipeline often adopts the joint protection method of the external anticorrosion layer and the forced current cathode protection. This method can greatly improve the corrosion resistance of the pipeline and extend the pipe life. The cathodic protection is a very effective corrosion protection technology. The test shows that the corrosion rate of pipeline without cathodic protection is more than 20 times that of cathodic protection pipeline. Therefore, it is very important to ensure the effectiveness of the pipeline cathodic protection system for the safe operation of the pipeline.

