Leaded brass tube processing requirements

First of all, leaded brass tube before processing can not have cracks, distortion, not round deformation, in the factory had made a defect mark, before processing must ensure the inner surface of clean, no water no oil. Secondly, the processing of the pipeline is processed in accordance with the design drawings, so the processing shape and size of the copper pipe should meet the requirements. The diameter change at the fracture must be controlled within 2% of the standard diameter of the steel pipe. In addition, there can be no flares or burr at the fracture. The pipe fitting itself must also be deoiled, and the internal and external surfaces should be clean. Because the steel pipe processing is a delicate work, the error control and the precision of the workpiece are very high. If the copper pipe needs welding, the welding process must be protected by nitrogen filling.

Copper pipe processing, before leaving the factory will be some details of processing, such as copper pipe blanking and deburring, sometimes in order to produce a certain shape of copper pipe, will also bend the copper pipe this operation; Next and deburring process will use to leaded brass tube trimming machine, pipe cutting knives, tools, such as effective ruler in the process of operation is the first pole position fixed, reoccupy cutter to be removed, in the process of cutting, copper pipe must be uniform feeding, in this way can cut flush and does not occur deformation, in order to make the smooth tube, after cutting with a brass trimming and burr, To remove the sundries on the internal and external surfaces, 0.3~ 0.5MPa dry compressed air should be used to remove the sundries.

Brass bell’s production, the production standard of leaded brass tube a matching copper child, and then into the brass tube to lead trumpet flaring of special tools, clamping fixture, on flaring kit pointed some air conditioning refrigeration oil, then tighten the clockwise three-quarters circle, a quarter of a circle back again and so on, until the flaring meet specifications. After the flaring is formed, the contact surface of the horn mouth should be smooth and smooth, and the thickness should be uniform, without obvious cracks and deviation defects.