Hydraulic system design

1, the choice of seals

The reliability of the hydraulic system largely depends on the design of the hydraulic system seal and the choice of seals. Due to the unreasonable use of the seal structure in the design, the selection of seals does not conform to the specification, and hydraulic oil is not considered in the design. Sealing material type of compatibility, load conditions, limit pressure, working speed, environmental temperature changes.

All of these causes the hydraulic system leakage directly or indirectly to varying degrees. In addition, because the environment of the injection molding machine has dust and impurities, it is necessary to use a suitable dust seal in the design to prevent dust and other dirt from entering the system to damage the seal, contaminate the oil, and thus cause leakage.

2, other design reasons

The design takes into account that the geometric accuracy and roughness of the moving surface are not comprehensive enough, and that the strength check of the joints is not performed in the design, etc., all of which cause leakage in the mechanical work.