How is the system pressure set for a simple dual tractor? How do you keep the pressure of your aluminum extruder low?
1) There are many systems in the extruder, the setting of pressure, first of all, according to the hydraulic schematic diagram analysis, usually, the movement of the cylinder depends on the relationship between its power and load, simply put, even if there is pressure but because the load is greater than the power, the cylinder will not move, the setting suggestions: 1. Re-calibrate the power and load; 2. Check the similar balance valve (also called the back pressure valve), the pressure can be set to 21Mpa.
2) How to keep the low pressure of the aluminum extruder machine? First determine if there is a problem with the hydraulic pump, if not, check the relief valve and tighten the pressure regulating handwheel. Manually tap the spool of the safety valve to see if there is pressure. The pressure is set at 21Mpa.
2. What is the reason why the exhaust pressure of the aluminum alloy extruder cannot be reached?
See how to control the exhaust, if you use a pressure relay, you can adjust it, if you use a pressure transmitter, in the human-machine interface, modify the exhaust pressure to increase it. Mainly for the extruder that used to be normal, if it is a new machine, there may be procedural problems. Suggestion: Do not change the program in the machine when it is operated by non-professional extruder personnel.
What unit does the word MN stand for on aluminum alloy extruder? What is the extrusion pressure of a 630 ton extruder?
Its 1: MN is the unit of force, and MN literally means "trillion head of cattle", i.e., "one million head of cattle". One trillion equals one million. Roughly 100 tons force, where 2: i.e. your 630 tons extruder has an extrusion pressure of 6MN. This is a force of 6 million Newtons, of course, the larger this number, the greater the extrusion pressure, and the more regular the extrusion.
Four. What is the reason why the extruder auxiliary pump has no pressure? What should be paid attention to when assembling hydraulic valves?
1) For the auxiliary pump on the aluminum extruder, there is no pressure, we need to do a small check on the machine, 1: to determine whether the oil pump is steering correctly, 2: to check the relief valve, to check the oil circuit, to see if the relief valve is working, 3: to check whether there is a problem with the pump itself. If there is nothing abnormal and the sound is normal, you can try to remove the safety valve and clean it with diesel! Blow off the holes in the valve with high pressure, paying special attention to the small damping holes, which are prone to clogging. If you have a new one, try another one. Wash the old one, put it away, and use it again next time.
2) Regarding the matters that should be paid attention to in the assembly, it is summarized as follows: 1. The sealing ring must be selected correctly, including the type and size 2, it must be clean during assembly, and the valve body must not be polluted 3, the direction of the sealing ring should be correct 4, and the sealing ring should be placed flat when assembling, that is, it cannot be installed.
