zora li Articles

Influence and reason of oil leakage in oil pipe of...

Causes of oil leakage in oil pipe of hydraulic pump:1. Loose pipe joints,2. Pipeline aging,3. Poor pipeline installation;The impact of oil leakage from hydraulic pump oil pipes on the hydraulic...

How to judge whether the flange is American standard or...

How to judge whether the flange is American standard or national standard?1.Judge according to the marking on the flange;2.Compare flange dimensions;3. Compare flange manufacturing standards. Judging whether a flange is...

Manufacturing process of tubing and casing

The manufacturing of oil pipes is relatively simple, mainly considering its high strength and corrosion resistance; while the manufacturing of casing is more complicated, and its compressive strength and various...

Methods for surface treatment of seamless steel pipes

Methods for surface treatment of seamless steel pipes:1, Clean;2, Tool rust removal;3, Pickling;4, Spray (throw) rust removal;4.1 Rust removal grade;4.2 Spray (throw) abrasive;4.3 Particle size and ratio of abrasive

ASTM Standard Seamless Steel Pipe

ASTM staASTM standards are widely used in seamless pipes. For example, ASTM seamless steel pipe materials mainly include A315-B, A53-B, A106-B, A106-B, A178-C, A135-A, A53-A, A106-A, etc.ndards are widely used...

Ultrasonic flaw detection of small diameter seamless steel pipe

Small-caliber seamless steel pipe are one of the more important features of seamless steel tubes and have various technical advantages and various applications. Small seamless steel tubes with small outside...

Test method for mechanical properties of seamless pipes

The mechanical properties of seamless pipe are one of the important indexes to ensure the final performance of seamless steel pipe.The mechanical properties of seamless steel pipe mainly depend on...

What is a casing pipe coupling?

This article introduces the definition, structure, type, installation method and precautions of the casing coupling, and provides help for correct operation and use. In actual use, you should also read...

API 5L Gr.B seamless steel pipe

API 5L seamless steel pipe is a seamless steel pipe made of pipeline steel - API 5L seamless steel pipe. Seamless steel pipes are made of pipeline steel materials: GR.B,...

Controlled rolling of seamless steel pipe

Controlled rolling is a technology that artificially forms as many ferrite transformation nuclei as possible in austenite and effectively refines the ferrite grains. Controlled rolling refers to a rolling method...