1. Metal cutting. The metal cutting of hose joints is mainly turning, using traditional metal cutting machine tools. A large number of standard pipe joints are also processed on automatic CNC lathes and multi-axis automatic machine tools.

 According to different profiles and different types of pipe joints, some auxiliary cutting processing is required, such as common six-sided angles, planing and milling machine milling flat hexagon wrenches; wrenches; sealing surface pipe joint grinding machines; pipe fittings are processed to the required precision And shape clamp wire ring locking type bed knocking lock nuts and so on.

  2. No cutting. In order to improve the utilization rate of metal materials, save raw materials and improve production efficiency. In the hose joint process, metal cutting should be minimized. When conditions permit, the groove outside the barrel core can be formed by roll forming. The external thread can be pushed out by a rolling machine, and the internal thread can be formed by a tapping machine. When air conditioning hoses or some middle and low pressure oil pipe joint cores are used, metal tubes should be used as much as possible, and the end of the forming machine or mold should be used to form a sealed end tube core. The coating is made of low-carbon sheet steel. Some core joint types, such as the radial size of the gap, the core is too long or need to be bent into a corner of the bent core, can be used in the process of welding parts.

    Hot forging and cold extrusion are the most widely used pipe joints without cutting processing. It is suitable for the production of hot forging and cold extrusion processes. The utility model is suitable for large-scale production of standard pipe joints, and can greatly improve the utilization rate of metal materials, and improve the mechanical strength, production efficiency and production cost of the materials. Generally, a forging press of a certain tonnage is used to form the cut profile by hot forging or refrigerant compression, and a small amount of metal cutting can be used to obtain the required precision and shape of the pipe joint. It is especially suitable for the processing of nuts and jackets in pipe joints.

      3. Heat treatment. Hose joints generally do not require heat treatment, as long as the appropriate metal materials are selected. However, individual parts of pipe joints or pipe joints with special requirements sometimes require quenching, annealing or chemical heat treatment of steel before and after metal processing to improve quality and increase the service life and safety of pipe joint parts.