A flowline safety joint of pipelines made of alloyed steels and for pipes, at which, in the operation is not allowed to be welded.

• 1. 一种焊接安全的管道接头 [P] . 中国专利： CN212900211U . 2021-04-06
• 2. 一种电站高温承压管道焊接接头多缺陷安全性评定方法 [P] . 中国专利： CN109708966A . 2019-05-03
• 3. High-strength steel pipe for welded joints, a method of manufacturing a high-strength steel pipe for welded joints, the joint structure of the bonding method and high-strength steel pipe of high-strength steel pipe [P] . 日本专利： JP5846072B2 . 2016-01-20

  机译： 焊接接头用高强度钢管，焊接接头用高强度钢管的制造方法，接合方法的接头结构以及高强度钢管的高强度钢管

• 4. A PIPELINE CONSISTING OF MULTIPLE STEEL PIPE SECTIONS AND INCLUDING A PROTECTIVE COATING AROUND THE PIPE SECTIONS AND AROUND THE PIPE JOINTS [P] . IN270278B . 2015-12-18

  机译： 由多个钢管段组成的管，并包括在管段和管接头周围的保护涂层

• 5. Joining joints of steel pipes, joining methods of steel pipes using the joining joints of steel pipes, steel pipe sheet piles [P] . JP2021147872A . 2021-09-27

  机译： 加入钢管接头，使用钢管钢管桩的连接接头加入钢管的方法

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