After the previous article talking about the manufacturing process of hydraulic valve block, we received many customers' message on our website. The new customers have not purchased our AAK hydraulic valve block yet, so it is understandable to have worries. In order to further clarify the quality advantages of AAK hydraulic valve block, I will talk about some production precautions of AAK in the production process of hydraulic valve block, as follows:
1. The surface roughness of the valve and flange installed on the hydraulic valve block shall reach Ra0.4, and the surface roughness of the sealing surface of the end pipe joint shall reach Ra3.2. In addition, the tolerance of perpendicularity between the screw hole of pipe joint and its outer joint surface shall be at least Grade 8.
2. In the design of hydraulic valve block, the oil circuit should be as simple as possible, and the deep hole, inclined hole and process hole should be reduced as far as possible. The hole diameter in the
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