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Author Archives: www.nctv.net

www.yaang.com provide a wide range of steel products as Steel pipe, Steel pipes and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

What is pipe heat tracing

What is pipe heat tracing

What is pipe heat tracing? Pipe heat tracing is a constant temperature or heating method used to keep materials at a certain temperature to prevent crystallization and solidification of materials in the pipe or to meet process requirements. In production ...

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    Discussion on the Mechanism of Cracks in High Manganese Steel Castings

    Discussion on the Mechanism of Cracks in High Manganese Steel Castings

    The causes of cracks in high manganese steel castings in actual production and the influence of various factors in the solidification process of castings are analyzed. Preventive measures are proposed from structural design, chemical composition control, casting process and heat ...

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      Guidelines for chemical cleaning process of industrial pipelines

      Guidelines for chemical cleaning process of industrial pipelines

      This standard is applicable to the pipeline construction requiring chemical cleaning specified in the design documents of industrial metal pipeline engineering. This standard is not applicable to the construction of water washing and oil cleaning in industrial metal pipeline engineering. Normative ...

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        40CrNiMoA

        40CrNiMoA

        What is 40CrNiMoA? 40CrNiMoA round steel, 40CrNiMoA sintered steel, 40CrNiMoA steel, alloy structural steel referred to as sintered steel, 40CrNiMoA is one of the sintered steel, also known as alloy steel, it is based on high-quality carbon structural steel, appropriate addition ...

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          Study on toughness and fracture cause of steel

          钢材韧性及断裂原因研究分析-钢铁百科

          Study on toughness and fracture cause of steel material There are thousands of varieties of steel material used in various industries. Each steel has a different trade name depending on its properties, chemical composition or alloy type and content. While ...

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            Function and processing method of butt welding flange

            The main functions of butt welding flanges are divided into the following categories: 1. In case of pipeline failure, it is easy to disassemble and test. 2. Connect the pipeline and keep the pipeline in good sealing performance; 3. If ...

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              Precautions for flat welding flange in use

              Users should pay attention to the following matters in the use of flat welding flange products: 1. In order to prevent the eye corrosion caused by the heating of the flat welding flange cover, the welding current should not be ...

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                Factors and methods of machining thin wall parts

                Thin wall parts have been widely used in various mechanical equipment because of their compact structure and light weight. They are mainly used to support the parts on the shaft and play a guiding role. Such parts have low rigidity, weak ...

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                  Optimal design of long weld neck flange for pressure vessel

                  Optimal design of long weld neck flange for pressure vessel

                  The long weld neck flange of pressure vessel is optimized through two specific examples, and the effects of cone neck height and flange thickness on the three main stresses of flange axial stress, radial stress and tangential stress are analyzed. The calculation results show ...

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                    Discussion on anti-corrosion materials for flange equipment

                    Flange is the main connecting equipment of process pipeline in petrochemical enterprises. It has a large number and plays a very important role in production and operation. Most of Fujian coastal petrochemical enterprises are located in coastal areas. The high salt ...

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