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Classifications and Characteristics of Reducers
Posted: 12/22/2021 04:03:32 Hits: 80A pressure pipeline, as one of the main special pressure bearing equipment for transporting various fluid media, has gradually gotten into our industrial production and people's lives, and can be seen everywhere in various industries. Restricted by the unique working conditions of... -
Analysis of the Causes of Cracks in the Welded Joints of Tees in a Power Plant (Part Two)
Posted: 10/22/2021 11:04:58 Hits: 141Calculation and analysis of thrust force of pipe systems to pipe ends connected to tees When the sliding bracket is hindered or can be operated, the comparison results of the thrust and torque of the pipe system to the pipe end connected to the tee are shown in Table 3. In the table, Fx, Fy,... -
Analysis of the Causes of Cracks in the Welded Joints of Tees in a Power Plant (Part One)
Posted: 10/16/2021 10:24:51 Hits: 42The main steam pipe is an important part of the boiler steam and water system, and its stress is complicated at the tee and its connecting part, which is the weak part of the main steam pipe. A certain power plant has been operating for 8×104 hours. Cracks were found at the tee of the... -
The Cause of the Leakage of the Tee and Its Solution
Posted: 09/24/2021 12:04:22 Hits: 50A pipeline, as an economical, effective, and environmentally friendly transportation method, is currently mostly used for the transportation of liquids and gases. However, leakages often occur in real life. The leakage of the pipeline may be caused by the selection and use of flanges or... -
The Cause Analysis of the Cracking of High-Pressure Steam Pipe Caps (Part Two)
Posted: 09/12/2021 08:55:51 Hits: 292.2.2 Testing and analysis of metallographic structure of sampled pipe caps Three samples were taken, two of which had fractures. The cross-sections of the samples were pre-ground, finely ground, ground and polished with water sandpaper and metallographic sandpaper, and etched with a 4% nitric... -
The Cause Analysis of the Cracking of High-Pressure Steam Pipe Caps (Part One)
Posted: 08/24/2021 11:47:51 Hits: 55Abstract: The failure of pipe caps of high-pressure steam pipelines caused by cracking was analyzed and checked. After the macro inspection of the whole, inner and outer walls, the fracture, and the microscopic metallographic structure and hardness test, the brittle failure caused by ultra-low... -
Reducing Cracks through the Manufacture and Post Treatment of Bends
Posted: 07/12/2021 12:16:29 Hits: 51Manufacturing of bends At present, there are two common manufacturing processes for bends in the world. One is hot push and the other is hot bending. If you want to make a bend with a small nominal diameter, the hot push process is generally used, while the hot bending process is... -
Knowledge of Manufacturing Elbows
Posted: 03/03/2021 03:01:52 Hits: 20The elbow is a common component in the piping system, and its main function is to change the direction of the pipe. Therefore, the elbow plays an important role in pipeline construction. There are many kinds of elbows, such as stainless steel elbows, alloy steel elbows and cast iron elbows. According... -
Dos and Don'ts of Installation of Elbows
Posted: 02/25/2021 10:45:50 Hits: 53There are many dos and don'ts for installing the elbow. Because the elbow is directly connected with the straight pipe, leakage will occur if you are not careful enough to install the pipe elbow. What should you pay attention to during the installation of the elbow? 1. Keep the... -
How to Use Stainless Steel Press fittings?
Posted: 02/03/2021 05:54:57 Hits: 1231. The thin-walled stainless steel press fitting should be handled with care, and should not be thrown or trampled during construction. 2. Stainless steel press fittings should be placed away from direct sunlight. 3. When stainless steel press fittings have oil stains,...