Technical requirements for pressed bend products
Since most of the pipe fittings for pressed bend products are used for welding, in order to improve the welding quality, the ends are all beveled, leaving a certain angle and with a certain edge.
1. Since most of the pipe fittings for pressed bend products are used for welding, in order to improve the welding quality, the ends are all beveled, leaving a certain angle and with a certain edge. This requirement is also stricter, how thick the edge is, and the angle is The amount and deviation range are specified. The surface quality and mechanical properties are basically the same as the tube. For the convenience of welding, the steel grade of the pipe fitting and the pipe to be connected is the same.
2. That is, all pipe fittings must be surface-treated, and the iron oxide scale on the inner and outer surfaces is sprayed off by shot peening, and then painted with anti-corrosion paint. This is for export needs, and also to facilitate transportation and prevent rust and oxidation. Work in this area must be done.
3. It is the packaging requirements. For small pipes, such as export, it is necessary to make wooden boxes, about 1 cubic meter. It is stipulated that the number of pressed bend products in this box should not exceed about one ton. The standard allows sets, that is, large sets of small sets. , but the total weight should generally not exceed 1 ton. For large items, they must be individually packaged, and those like 24" must be individually packaged. The other is the packaging mark, which should indicate the size, steel number, batch number, manufacturer's trademark, etc.
We produce all kinds of metal parts include machine parts, metal stamping, deep drawn, sheet fabrication, welding parts, and assemble products