Proiecte recente de expediere către Asia Centrală

Welding process and method of large diameter flange

In the welding construction of large-diameter flange, although there is only one weld junction, X-shaped groove is adopted in consideration of welding deformation and welding quality. Asymmetric x-groove Firstly, fix the annular blank horizontally on the gantry fixture platform, and then conduct groove processing. The groove processing is first cut by flame and then ground by grinder. The groove surface is required to be smooth, flat and free of obvious grooves, and there are no defects such as iron oxide, impurities, moisture, oil stains and delamination on on the groove surface and both sides. Due to the thick thickness of […]

Proiecte recente de expediere către Asia Centrală

Testul de presiune al conductei de proces

What is pressure test of process pipeline? Pressure testing of process pipeline is an important process in the construction of the project, which is to check whether the pipeline installation is in line with the process, whether there are unsafe hidden dangers, the quality of pipeline construction and other issues. The specific steps of pressure testing of process piping are as follows: Division of test pressure package The test pressure of the pipeline system is divided into several test pressure packages according to the general flow chart of the pipeline and instrumentation. In accordance with the principle of covering all […]

Proiecte recente de expediere către Asia Centrală

Etapele de instalare și construcție a țevilor de cupru

Process overview The installation and construction of copper pipes should be developed before the start of the scientific process to ensure that the construction process is up to standard. Share the installation and construction steps of copper pipes commonly used in our factory. Copper pipe straightening → cutting → pipe prefabrication → pipe installation → pipe pressure test → insulation → pipe flushing → system water The installation steps of copper pipe detailed explanation Straightening of copper pipes (1). Copper channel straightening should be filled with sand, and then straightened with a straightener; sand-filled copper pipe can also be placed […]

Proiecte recente de expediere către Asia Centrală

Ramble on about welding deformation of channel bars

During welding, the high temperature molten iron shrinks during solidification, leading to the deformation of channel bars, which has been a headache for all steel structure practitioners. Therefore, when the production of general channel bars is completed, their deformation should be measured. If it exceeds the allowable tolerance range, rectification work should be done [1](Photo 1). In serious cases, even channel bars can only be scrapped. Therefore, the control of deformation, in the factory’s manufacturing quality control, occupies a very important channel bar. To control deformation, the basic principle is to reduce the internal stress, or to give enough beam, […]

Proiecte recente de expediere către Asia Centrală

Cercetări privind procesul de fabricație și controlul calității țevilor sudate sub presiune

In the context of continuous social and economic development, pressure welded pipe as an important structure of various types of engineering, its manufacturing process and manufacturing quality has become an important element affecting the operation of the later project. This paper is mainly on the pressure welded pipe manufacturing process and quality control of the relevant content to make certain analysis and research, in order to promote the better development and progress of related engineering production. Pressure welded pipe belongs to the current industrial pipeline installation of important load-bearing equipment, this equipment has the important characteristics of pressure resistance, high […]

Proiecte recente de expediere către Asia Centrală

De ce ar trebui ca oțelul să fie călit și revenit

Why should steel be quenched and tempered? Quenching and tempering treatment: the heat treatment method of high temperature tempering after quenching is called quenching and tempering treatment. High temperature tempering refers to tempering between 500-650 ℃. Quenching and tempering can greatly adjust the properties and materials of steel, with good strength, plasticity and toughness, and good comprehensive mechanical properties. Tempered sorbite was obtained after quenching and tempering. Tempered sorbite is formed by martensite during tempering. It can be distinguished only when it is magnified more than 500 – 600 times under the optical metallographic microscope. It is a composite structure […]

Proiecte recente de expediere către Asia Centrală

Metode de conectare a conductelor de inginerie a conductelor

Pipeline connection is inevitable in every pipeline project, and it is also one of the most important factors that directly determine the quality of pipeline engineering. We summarized the size of various pipeline connection methods that need attention, hoping to provide you with reference and help you improve the quality of pipeline engineering. Threaded connection (1) If it is necessary to break the pipe according to the mapping sketch on site, the iron film and burr on the cross section of the pipe orifice should be cleaned after the pipe break. (2) Before installing the pipe fittings, the appearance quality of […]

Proiecte recente de expediere către Asia Centrală

Research on Problems and treatment measures in equipment and pipeline design a……

For the oxygen station, the equipment and pipeline are the key parts. Especially during the production, transportation and storage of the oxygen station, a little carelessness may lead to various emergencies, threatening the personal safety of the operators. If the accident involves a large area, it may even have a great impact on the whole oxygen station. Based on this, based on the installation of oxygen station equipment and pipeline, this paper focuses on the possible problems in the installation process, then puts forward the corresponding solutions according to the relevant problems, and puts forward the precautions in the installation […]

Proiecte recente de expediere către Asia Centrală

Safety measures on oxygen pipeline

Two accidents of oxygen pipeline burning explosion occurred in China’s steel industry in 2021 are introduced , and the mechanism of burning explosion in oxygen pipeline is briefly analyzed. Standard requirements and corresponding measures in aspects of oxygen pipeline flow rate control , material selection , pipe and valve selection and pipeline construction , which should be followed to ensure the safety of oxygen pipeline , are described in details , according to the national standard “Safety technical regulation for oxygen and relative gases produced with cryogenic method”. Finally , the experience of safe use of oxygen pipelines is presented. […]

Proiecte recente de expediere către Asia Centrală

How to weld air conditioning copper pipe

The refrigeration piping system in refrigeration and air conditioning generally uses non-ferrous metal materials such as copper pipe and aluminum pipe. In the process of manufacturing, installation and maintenance, pipeline welding is a key link. It not only affects the beauty, but also affects whether the system can work normally, which must be paid great attention to. What is a air conditioning copper pipe? Air conditioning copper pipe refers to the connecting copper pipe connecting the indoor unit and outdoor unit of the air conditioner. Air conditioning copper pipe has the characteristics of hard texture, not easy to corrosion, high […]

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