Only by complying with these technical requirements can the finished products processed by Changzhou machinery be more standardized and reasonable. The specific technical requirements are as follows:
(1) Remove the oxide scale from the parts.
(2) There should be no scratches, abrasions or other defects that damage the surface of the parts during machining.
(3) The unmarked shape tolerance should comply with the requirements of GB84-80, and the allowable deviation for unmarked length dimensions is± 0.5mm.
(4) The tolerance zone of the casting is symmetrical to the basic dimensional configuration of the blank casting.
(5) The assembly of rolling bearings allows the use of oil heating for hot installation, and the temperature of the oil must not exceed 00 ℃.
(6) When assembling hydraulic systems, it is allowed to use sealing fillers or sealants, but entry into the system should be prevented.
(7) The parts and components that enter the assembly must have a certificate of conformity from the inspection department before assembly can proceed.
(8) The parts must be cleaned and cleaned thoroughly before assembly, without burrs, burrs, oxide skin, rust, chips, oil stains, colorants, and dust.
(9) Before assembly, the main fitting dimensions of the parts and components, especially the interference fit dimensions and related accuracy, should be rechecked.
There are other questions about Changzhou mechanical processing that will not be introduced here. If you have any other questions, please feel free to contact us by phone.