-Technical requirements for elbow


Release Time:

2021-09-15

Required to control the radius of curvature. For example, if the radius length is 1.5 d, the radius of curvature must be within the required tolerance.

Required to control the radius of curvature. For example, if the radius length is 1.5 d, the radius of curvature must be within the required tolerance. Since most of these pipes are used for welding, in order to improve the quality of welding, the end of the car into groove, leaving a certain angle, with a certain edge, this requirement is more strict, how thick the edge, the angle and deviation range are specified, and there are many more geometric dimensions than fittings. The surface quality and mechanical properties of the elbow are basically the same as those of the tube. For the convenience of welding, the material of the steel to which the pipe is connected is the same. 1, because most of the pipe used for welding, in order to improve the quality of welding, the end of the car into groove, leaving a certain angle, with a certain edge, this requirement is more stringent, edge thickness, the angle and the range of deviation are specified. The surface quality and mechanical properties are basically the same as those of a tube. For the convenience of welding, the steel of the pipe fitting is the same as that of the pipe to be connected. 2, is that all the pipe fittings are to go through the surface treatment, the internal and external surface of the iron oxide through shot peening treatment spray away, and then coated with anti-corrosion paint. This is for export needs, moreover, in order to facilitate transport and prevent corrosion oxidation, have to do this work. 3, is the requirements of the packaging for small pipe, such as export, it is necessary to do wooden boxes, about 1 cubic meters, the provisions of such boxes in the number of elbow can not exceed about a ton, the standard allows the set, that is, large set of small, but the total weight should not exceed 1 ton. For large Y must be a single package, like 24′ must be a single package. The other is the packaging mark, Mark is to indicate the size, steel number, batch number, manufacturers trademarks.

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