News
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2023 Brazil Oil and Gas Exhibition
The 2023 Brazil Oil Oil and Gas Exhibition was held from October 24th to 26th at the International Convention and Exhibition Center in Rio de Janeiro, Brazil. The exhibition was organized by the Br...Read more -
2023 Abu Dhabi International Conference and Exhibition on Oil and Gas
The 2023 Abu Dhabi International Conference and Exhibition on Oil and Gas was held from October 2 to 5, 2023 in the capital of the United Arab Emirates, Abu Dhabi. The theme of this exhibition is "...Read more -
What factors need to be considered when selecting the pressure rating of the connecting flange ?
1. The design temperature and pressure of the container; 2. The connection standards for valves, fittings, temperature, pressure, and level gauges connected to it; 3. The influence of thermal stres...Read more -
Pressure rating of flanges
A flange, also known as a flange or flange. A flange is a component that connects shafts and is used for connecting pipe ends; Also useful are flanges on the inlet and outlet of equipment, used for...Read more -
2023 Moscow Oil and Gas Exhibition
The 2023 Moscow Oil and Gas Exhibition (NEFTEGAZ), sponsored by Expocenter, has be held from April 24 to April 27 at the Moscow Central Exhibition. The exhibition covers an area of 21000 square me...Read more -
Seven common causes of flange leakage
1. Side opening Side opening refers to the fact that the pipeline is not perpendicular or concentric with the flange, and the flange surface is not parallel. When the internal medium pressure excee...Read more -
22nd International Exhibition for Equipment and Technologies for Oil and Gas Industries
Shanxi DongHuang Wind Power Flange Manufacturing Co., LTD. (DHDZ for short) is TUV and SGS authorized manufacturer of Steel Flanges and Forgings for over 10 years. With PED certificates and ISO9001...Read more -
Shanxi DHDZ wishes all goddesses a happy Women’s Day
The company to express the care and blessing of all female employees The following benefits are specially prepared: 1. Flower arrangement activity 2. Cupcakes & Goddess Red Envelopes 3. Half da...Read more -
What are the causes of forming cracks and defects in forging process?
The mechanism analysis of crack inducement is conducive to mastering the essential reason of crack, which is the objective basis for crack identification. It can be observed from many forging crack...Read more -
Forging method of flat welding flange and matters needing attention
According to the movement mode of your favorite forging die, flat welding flange can be divided into swing rolling, swing rotary forging, roll forging, cross wedge rolling, ring rolling, cross roll...Read more -
How to conduct post-forging heat treatment for forgings
It is necessary to conduct heat treatment after forging because its purpose is to eliminate the internal stress after forging. Adjust the forging hardness, improve the cutting performance; The coar...Read more -
What should I pay attention to when using a neck butt welding flange?
What should I pay attention to when using a neck butt welding flange? All metal with neck butt welding flange fittings will react with atmospheric oxygen, forming an oxide film on the surface. The ...Read more
