The function of the four-column hydraulic press filter lies in removing impurities mixed within the hydraulic oil, reducing contamination within the system's fluid, and ensuring the normal operation of the four-column hydraulic press. Failures arising from the filter primarily manifest as poor filtration effectiveness and an inability to guarantee fluid cleanliness, leading to malfunctions.
1. How to prevent filter element damage or deformation?
Causes include clogging or incorrect selection. Remedial measures: Conduct timely, regular inspections and clean the oil filter. Select filters with appropriate pressure resistance, strength, and flow capacity for the four-column hydraulic press, implementing countermeasures for specific issues.
2. How to prevent filter weld separation?
For metal mesh filters, elevated ambient temperatures or localised oil temperatures at the filter location exceeding or approaching the weld point's melting temperature, combined with inherently weak welds, can cause separation due to oil pressure impact. For instance, mesh filters at high-pressure plunger pump inlets have frequently been modified using silver solder to significantly increase their melting point.
3. How to prevent filter particle shedding?
This primarily concerns sintered metal powder filters in four-column hydraulic presses. Shed particles entering the system can block throttle orifices or jam valve spools. The root cause lies in substandard sintered powder filter elements, necessitating the selection of certified sintered oil filters.
4. How to prevent filter blockage?
During operation, gradual accumulation on the filter element surface is normal. However, the severe blockage discussed here refers to faults causing four-column hydraulic press malfunctions. Blocked filters result in: - Inadequate oil delivery - Pump noise - Insufficient oil intake preventing pressure build-up - Excessive air bubbles in the oil - Potential filter element rupture due to increased pressure, leading to hydraulic press failure.
