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25.07.2017

Pipeline Cleaning

The pipeline is the equipment consisting of the pipe, the pipe fitting and the valve, and is used for transporting gas, liquid, or fluid with solid particles. Usually, after being pressurized by blowe...
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  • Posted: 10/14/2014 16:07:57  Hits: 483
    Now, a lot of metallurgical equipments in our country can be designed, manufactured and integrated by ourselves. After China jointly designing with foreign countries and summarizing the experiences and lessons of installation, commissioning, usage, maintenance, and transformation of foreign equipments, our current de...
  • Posted: 09/09/2014 15:33:41  Hits: 885
    There are several methods for you to identity forged and fake seamless pipes as follows:   1. There is often pitted surface phenomenon on appearance. Pitted surface phenomenon is irregular and uneven defects which were caused by the worn grooves. Forged and fake seamless steel tube manufacturers try their be...
  • Posted: 09/01/2014 16:25:38  Hits: 536
    Seamless steel tube in pipe insulation can be classified into two categories: hot-rolled seamless steel tube and cold-rolled seamless steel tube. Hot-rolled seamless steel tube has the following kinds: common steel tube, low-pressure boiler steel pipe, medium-pressure boiler steel pipe, high-pressure boiler tube, all...
  • Posted: 08/25/2014 17:25:27  Hits: 500
    High-frequency pipe has many problems among which opening and crack are the two common ones. This artcile introduces about the two problems and its relevant solutions.   1.Opening   (1) Characteristics Crack openings > = 0.4 mm. Welded joint is straight. Plate edge end face without melting ...
  • Posted: 08/19/2014 15:51:02  Hits: 504
    Galvanized pipe can be classified into two kinds: cold galvanized steel pipe and hot dip galvanized steel pipe. The former has been forbidden, and the latter has been advocated temporarily in China.   1. Hot Dip Galvanized Steel Pipe   Hot dip galvanized steel pipe is to make the molten metal react ...
  • Posted: 07/29/2014 16:00:23  Hits: 545
    Welded steel pipe is shaped up by crimping steel plate or steel belt and then it was made after welding. Welded steel pipe can be classified into longitudinally-welded pipe and spiral welded steel pipe according to the ways of welding. The common forming technique of longitudinally-welded pipe is UOE forming process ...
  • Posted: 07/21/2014 16:21:49  Hits: 2313
    Seamless steel pipe can be classified into the following several kinds because of its different standards:   1. GB/T8162-1999 (the structure is made by seamless steel tube). It is mainly used for the general structure and the mechanical structure. It represents textures (brands) : carbon steel No 20 and...
  • Posted: 07/14/2014 15:11:51  Hits: 643
    Double-sided Submerged Arc Welding (LSAW - Longitudinal Submerged Arc Welded), a new kind of welding method, was invented in 1940. Compared with the manual welding, the same point is that LSAW is using slag protection technology, but the slag is not the coating of electrode. The welding flux is made of by the slag sp...
  • Posted: 07/07/2014 10:45:35  Hits: 508
    Production technology development of steel pipe began in the rise of bicycle manufacturing. Many events are effectively driving the development of steel pipe industry in varieties, yield and quality such as the exploitation of oil in the early 19th century, the manufacture of ships, boilers and aircraft during two wo...
  • Posted: 07/05/2014 09:53:31  Hits: 599
    The carbon content is the difference between steel and iron. Metallurgical industry is usually divided into ferrous metallurgy industry and non-ferrous metallurgical industry. Burden among multiple varieties belong to ferrous metallurgy, mainly including iron, cast iron, steel and iron alloy, etc.   Steel co...