通化硕抠家具有限公司

    高級(jí)檢索

    油套管接箍高溫錳磷化工藝探討

    Discussion on High Temperature Manganese Phosphorisation Process for Oil Tubing/Casing Couplings

    • 摘要: 針對(duì)錳系磷化成渣多、磷化層色度不均勻、磷化層表面容易出現(xiàn)發(fā)白掛灰、表面泛黃等問題，結(jié)合多年錳系磷化生產(chǎn)實(shí)踐及影響因素研究，分析認(rèn)為磷化溫度、磷化時(shí)間、磷化酸比、Fe2+濃度是影響錳系磷化質(zhì)量的關(guān)鍵因素。指出油套管接箍最佳的錳系磷化工藝參數(shù)為：磷化溫度≥95℃，總酸點(diǎn)60，不同鋼級(jí)采用不同酸比（低鋼級(jí)酸比7～8為佳，高鋼級(jí)酸比9以上較好），磷化時(shí)間大于20 min。得到的磷化膜分布均勻、結(jié)晶細(xì)致、厚度均勻，具有良好的耐腐蝕性、耐磨性和抗黏結(jié)性。

       

      Abstract: Addressing the problems concerning the manganese series phosphorisation process such as excessive slag formation, uneven color of the phosphorised layer, and the while, gray-striped or yellow phosphorised layer surface, etc., based on the company's years experience in manganese series phosphorisation operation, factors affecting phosphorisation quality are studied and analyzed.As a result, it is identified that the key factors include temperature, time, phosphoric acid proportion, and Fe2+ concentration for phosphorisation operation.It is affirmed that the best parameters of manganese series phosphorisation process for oil tubing/casing couples are temperature: ≥ 95℃, total acid point:60, acid proportion:variable as per steel grade(for low grades, 7~8 is the best, and for high grades, over 9 is acceptable), and time:over 20 min.Based on these parameters, the phosphorized film will possesses advantages such as homogeneous distribution, fine crystallization, even thickness, excellent resistances against corrosion, wearing and bonding.

       

      • HTML全文

    /

    返回文章
    返回