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How does internal cracks of forging blank occur during heating
- Posted: 12/10/2018 04:12:13
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Internal Crack of Flange Blank When the blank is heated, if its internal stress exceeds its strength limit at a certain temperature, the cracks will be generated. Usually, there are temperature stress, structural stress, and residual stress. Temperature Stress The temperature difference is generated...
An incident of toxic chemical spill due to flange gaskets breakage
- Posted: 11/12/2018 02:11:29
- Hits: 92
On November 4th, People in Quangang (a district in Quanzhou, Fujian Province) were jarred by an odor permeating in the air that spread from the area of Shangxi Village, Houlong Town and Fengqian Village, Fengwei Town. At the same time, parts of the sea were contaminated by a tawny oil-like leakage....
12 kinds of flanges (part two)
- Posted: 11/01/2018 05:11:09
- Hits: 35
Blind Flange It is a flange without any bore in the middle in order to block off media through a pipeline, like what welded cap and casing cap function, except that only casing cap and blind flange are able to be uninstalled at any time. Blind Flange with Anti-Corrosion Lining It is a kind of blind...
12 kinds of flanges (part one)
- Posted: 10/27/2018 03:10:42
- Hits: 66
As a kind of indispensable spare part in piping design, flanges can be used in a wide range of fields, such as industrial furnace, water supply and drainage, heating and ventilation. Materials: Forged steel, WCB carbon steel, stainless steel, 316L, 316, 304L, 304, 321, Cr-Mo steel, Cr-Mo-V steel, 316Ti,...
The Shanghai International Pipe Flange and Pipeline Exhibition 2018
- Posted: 06/04/2018 02:06:54
- Hits: 31
Information of the exhibition Exhibition Name: The Shanghai International Pipe Flange and Pipeline Exhibition 2018 Date: November 1-3, 2018 Venue: Shanghai New International Expo Center The overview of the exhibition The Shanghai International Pipe Flange and Pipeline Exhibition (Shanghai Pipe...
An Introduction to Large Diameter Carbon Steel Flanges
- Posted: 10/17/2017 02:10:57
- Hits: 50
There are some perforations bolts can go through on large diameter carbon steel flanges, and the bolts can make two flanges tightly connected with each other. Flanges are sealed through the gaskets. When the sizes of large diameter carbon steel flanges need to be determined, the nominal diameter as...
What Is the Lap Joint Flange with Welding Neck Collar?
- Posted: 09/18/2017 11:09:10
- Hits: 275
Lap joint flanges can be mainly divided into four types: loose plate steel pipe flanges with weld-on collar, loose plate steel pipe flanges with welding neck collar, lap joint flanges with welding neck collar and lap joint flanges with welding neck collar. The roles of lap joint flanges Lap joint...
The Differences Between Forged Flanges and Cast Flanges
- Posted: 09/05/2017 04:09:12
- Hits: 41
Cast flanges can be manufactured in various kinds of complex shapes which are difficult to be obtained for the flanges which are produced by other manufacturing methods. Cast flanges have very low costs, which make them much cheaper than forged flanges. They have characteristics of the ideal surface's...
Analyses on Export of China's Flanges to the EU and the US (Part Two)
- Posted: 08/14/2017 11:08:56
- Hits: 47
2. The total weight of exported China's steel flanges The total weight of China's steel flanges exported to the United States, the United Kingdom, the European Union and the major countries in the EU since 2012 is shown in Figure 2 and Figure 3. The data all come from the...