After replacing the piston rod of the compressor, circles appeared one after another
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After replacing the piston rod, seal leakage was observed during testing; upon removal, it was found that the piston rod had various rings on it, but there was no sign of wear when touched
Why does it seem like there’s a problem with the hardness of this rod? ? ? Has the lubricant in your equipment been completely cleaned out, are the filters in good condition, and has the oil tank been thoroughly cleaned? ? ? ? Is the material clean, and is the inlet filter clean? ? ? Otherwise, there wouldn’t be such wear marks. Check it out. Many times, the problems that arise are not necessarily related to the machinery; process aspects also need to be taken into consideration.
Is it still the one that was repaired last time? Is it easy to wipe off or not? If it’s easy to wipe off, it’s due to worn-out packing; if it’s not easy to wipe off, it’s because of the temperature of the packing during compressor operation
Another one. The previous one leaked less after replacing the piston rod and running it in
I asked an experienced technician who installs compressors yesterday, and he said it’s a problem with the machining precision of this rod – the polishing is done while it’s rotating. There is no axial grinding, so such marks appear after axial movement.
I agree with the experienced teacher’s opinion; it’s likely due to insufficient processing precision.
Does this mark indicate axial unevenness? So what is the standard for this unevenness? ? Can we say this rod is unqualified? ? ? It doesn’t seem to have this level of smoothness. How can there be talk of smoothness when it’s uneven? I don’t understand.
I’m not sure about that. After replacing the rod, there was a leak as soon as it was started up; then I took it apart and saw it. The experienced worker said that every rod has some degree of leakage, but in this case the leakage was evident after taking it apart. Otherwise, it will run out after being used for a long time
There seems to be a problem with the quality. Oh, regarding the sealing issue, could you send a photo of the intermediate position so we can see what’s causing it?