Elbow manufacturer's factory process
The elbow is a pipe fitting that changes the direction of the pipe. Elbow manufacturers on elbow classification is divided into Angle: 45 degrees, 90 degrees, 180 degrees three commonly used Angle, according to the needs of the project also includes 60 degrees and other angles of elbow. Elbow materials are cast iron, stainless steel, alloy steel, carbon steel non-ferrous metal plastic and so on.
Most elbow pipe fittings are used for welding. In order to improve welding quality, the end is bevelled, with a certain Angle and a certain edge. This requirement is also strict, and the thickness of the edge, the Angle and the deviation range are specified. The surface quality and mechanical properties are basically the same as the pipe. For easy welding, the steel of the fittings is the same as that of the pipes to be connected.
That is, all pipe fittings should go through surface treatment, the inner and outer surface of the oxide sheet is sprayed off by shot peening, and then coated with anticorrosive paint. This is for export needs, in addition, in order to facilitate transportation to prevent corrosion and oxidation, we should do this work.
Is the requirements for packaging for small pipe fittings, such as export, you need to make wooden cases, about 1 cubic meter, the number of elbow in this box can not exceed about one ton, the standard allows the set, that is, a large set of small, but the total weight can not exceed 1 ton. For large pieces y need to be individually packed, like 24 "must be individually packed. The other is the packaging mark, mark is to indicate the size, steel number, lot number, etc.