Round tube polishing machines are generally planetary polishing machines and centerless polishing machines, and they have single and multiple stations. At present, round tube polishing machines are mainly used for polishing the surface of aluminum tubes, iron tubes, copper tubes, steel tubes and other pipes. They have the characteristics of high efficiency and good effect. This article will tell you what factors affect the polishing quality of round tube polishing machines.
Single station planetary pipe polishing machine:
Single station centerless pipe polishing machine:
First of all, since mechanical polishing is mainly done manually, polishing technology is still the main reason affecting the polishing quality. In addition, it is also related to mold materials, surface conditions before polishing, heat treatment processes, etc. High-quality steel is a prerequisite for obtaining good polishing quality. If the surface hardness of the steel is uneven or there are differences in characteristics, polishing difficulties often occur. Various inclusions and pores in the steel are not conducive to polishing by the round tube polishing machine.
The influence of different hardness on the polishing process. The increase in hardness increases the difficulty of grinding, but the roughness after polishing decreases. Due to the increase in hardness, the polishing time required to achieve a lower roughness increases accordingly. At the same time, the hardness increases, and the possibility of over-polishing decreases accordingly.
The influence of the surface condition of the workpiece on the polishing process. During the crushing process of cutting and machining, the surface of steel will be damaged by heat, internal stress or other factors. Improper cutting parameters will affect the polishing effect. The surface after EDM is more difficult to grind than the surface after ordinary machining or heat treatment. Therefore, fine-caliber EDM finishing should be used before the end of EDM, otherwise a hardened thin layer will form on the surface.
If the EDM finishing standard is not selected properly, the depth of the heat-affected layer can reach 0.4mm. The hardness of the hardened thin layer is higher than that of the matrix and must be removed. Therefore, it is necessary to add a rough grinding process to completely remove the damaged surface layer and form an average rough metal surface, which provides a good foundation for the polishing of the round tube polishing machine.
So what should be paid attention to during the use of the round tube polishing machine? The safety operating procedures of the round tube polishing machine are summarized in four points:
1. The first step is to check the power supply and keep the switch intact. The whole safe startup process of the round tube polishing machine is the power supply-equipment power main switch-equipment power start switch, and the three power startup processes. The shutdown process is to turn off the polishing disc - turn off the equipment switch power - turn off the external power connection.
2. The switch power must be mounted on the wall, and it is strictly forbidden to connect or pull wires randomly. When cleaning the equipment, prevent water from splashing on the power supply.
3. Non-staff are prohibited from entering the work area.
4. When a tight situation occurs, the main power switch should be turned off immediately to prevent accidents during the use of the polishing machine.
