What are the requirements for Changzhou machining?

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) The machined surface of the part shall be free of defects such as scratches, scratches, etc. that may damage the surface of the part.

(3) The unmarked shape tolerance shall comply with the requirements of GB84-80, and the allowable deviation of unmarked length and dimension shall be± 0.5mm。

(4) The casting tolerance zone is symmetrical to the basic dimensional configuration of the blank casting.

(5) When assembling rolling bearings, it is allowed to use oil heating for hot charging, and the temperature of the oil shall not exceed 00 ℃.

(6) When assembling the hydraulic system, it is allowed to use sealing filler or sealant, but it should be prevented from entering the system.

(7) Parts and components that enter the assembly must have a certificate from the inspection department before they can be assembled.

(8) Parts must be cleaned and cleaned before assembly, and must be free of burrs, fins, oxide skin, rust, chips, oil, colorants, and dust.

(9) Before assembly, the main fitting dimensions of parts and components, especially the interference fitting dimensions and related accuracy, should be reviewed.

There are other questions about Changzhou mechanical processing that will not be introduced here. If you have other questions, please contact us by phone.