How to repair the rotor and bearing of vacuum hot press

How to repair the rotor and bearing of vacuum hot press
The two end faces of the rotor are moving sliding surfaces in contact with the end faces of the oil distribution plate, so they are easy to wear and tear. According to the pulse heating principle of Shenzhen hot press, due to the special design of the welding head surface, the resistance of the welding surface is very small, and the current will pass through the section with the minimum resistance. By constantly changing the voltage, adjusting the current level, and rapidly heating the welding head. The hydraulic hot press uses pulse heating technology, with accurate temperature control and temperature sampling frequency of 0.1s. Due to the fact that the pitch of PCB or FPC in consumer electronic products tends to be smaller, the traditional soldering process has been difficult to meet the requirements of ultra-fine hot pressing. The ACF process has been gradually applied by mobile phone designers. There are a few fractures or cracks at the keyway, and the blade groove is worn and widened. If only two end faces are slightly worn, they can be reused after polishing; If the wear is serious, the spline mandrel and the center point must be positioned and clamped, and the two end faces must be ground on the * * * cylindrical grinder, and then polished. However, it should be noted that at this time, the corresponding parts of the blade and stator should also be worn off to ensure that the blade length is less than 0.005~0.01mm of the rotor thickness, and the stator thickness is greater than 0.03~0.04mm of the rotor thickness. When the rotor blade groove is seriously damaged due to wear, the blade grinding wheel and indexing fixture can be used on the manual grinder or spline grinder. After the blade groove is repaired, the blade thickness shall be increased. After grinding, the straightness, parallelism tolerance and perpendicularity tolerance of the blade groove on the two working surfaces of the blade groove to the rotor end face are all 0. Olmm. Before assembly, remove the burr with an oilstone, but do not chamfer. After the rotor is repaired, the parallelism of the two end faces is 0.005mm, the perpendicularity of the end face and the spline hole is 0. Olmm, the end face roughness is~, the parallelism of the two sides of the blade slot is 0. Olmm, and the roughness is V.