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The main classification statistical analysis of the elbow

2014-04-11 15:16:42   COMMENT:0 HITS:
The main classification statistical analysis of the elbow

 

According to the material, Angle, connectionism, production process, manufacturing standards, different
pressure levels, the curvature radius are divided into the following:
To the material divide the elbow can be divided into: carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum, etc.
According to the Angle, the most commonly used 45 °, 90 ° and 180 ° three elbow, according to the requirements of the project also includes 60 °, and other abnormal Angle bend.
According to the elbow and the connection pipe can be divided into: direct welding (most common), flange connection, threaded coupling has socket type coupling, etc.
According to production technology division elbow can be divided into: stamping elbow, such as welding bend, casting bend.
According to the method divided elbow can be divided into: pushing, pressing, forging, casting, etc.(now are generally pure forging)
According to standard manufacturing division can be divided into: gb, electricity standard, water standard, American standard, Germany standard, Japanese standard, etc.
According to the grades of pressure to differentiate: about seventeen, and American standard pipe is the same, there are: SCH5S, SCH10S, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS;SCH80, SCH100, SCH120, SCH140, SCH160, XXS;One of the most common is two kinds of STD and XS.
According to the radius of curvature to differentiate, can be divided into long radius elbow and short radius elbow.Long radius elbow refers to its radius of curvature is equal to 1.5 times the outer diameter of tube, R = 1.5 D.Short radius elbow refers to its radius of curvature is equal to the pipe diameter, R = 1.0 D.To bend diameter (D, R for the radius of curvature).

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