Drilling and tapping shall be carried out according to the design requirements of the hydraulic valve block processing drawings: the slender hole shall be processed first, and then the short and coarse hole shall be processed.

According to the refrigeration mode of the station, the hydraulic valve block can be divided into: 1. 2. Forced refrigeration: forced refrigeration is carried out by refrigerator, which is generally used in the system with oil tank capacity greater than 250 L.

Deburring and heat treatment residue removal of hydraulic valve block. Another major problem of auxiliary processing of hydraulic valve block is deburring and heat treatment residue removal. The existence of burr will cause adverse effects on hydraulic parts, such as stem clamping and damping hole blocking.

The oil hole in the oil circuit block makes the pressure drop of fluid flowing through the channel in the whole working temperature and flow capacity range of the system, which will not adversely affect the efficiency and response of the system.