Valve block X

Hydraulic valve block (referred to as hydraulic valve) is the control element in the hydraulic system, which is used to control the pressure, flow and flow direction of the fluid in the hydraulic system, so as to meet the requirements of different actions of various executive elements. Because of its compact structure, good sealing performance, convenient maintenance, easy technical confidentiality and other advantages, it is widely used in all kinds of hydraulic transmission systems.

The valve block is first designed and then processed. The processing technology is as follows:

(1) Pre processing. The material for processing valve block shall be compact and free from interlayer, trachoma and other defects. The blank shall be inspected before processing. Cast iron blocks and larger steel blocks should be aged and pretreated before processing.

(2) Cutting. Generally, at least 2mm machining allowance shall be reserved for each side.

(3) Milling profile. Milling 6 sides of valve block, leaving 0.2-0.4mm rough grinding amount on each side.

(4) Rough grinding. Rough grind 6 sides of valve block, leave 0.05-0.08mm fine grinding amount on each side, ensure that the parallelism of each pair of corresponding surfaces is less than 0.03mm, and the perpendicularity of two adjacent surfaces is less than 0.05mm.