五一小長(zhǎng)假FESTO氣缸*德國(guó)費(fèi)斯托氣缸 氣缸常見(jiàn)問(wèn)題及原因分析:
1．汽缸是鑄造而成的，汽缸出廠后都要經(jīng)過(guò)時(shí)效處理，使汽缸在住鑄造過(guò)程中所產(chǎn)生的內(nèi)應(yīng)力*消除。如果時(shí)效時(shí)間短，那么加工好的汽缸在以后的運(yùn)行中還會(huì)變形。 　　
2．汽缸在運(yùn)行時(shí)受力的情況很復(fù)雜，除了受汽缸內(nèi)外氣體的壓力差和裝在其中的各零部件的重量等靜載荷外，還要承受蒸汽流出靜葉時(shí)對(duì)靜止部分的反作用力，以及各種連接管道冷熱狀態(tài)下對(duì)汽缸的作用力，在這些力的相互作用下，汽缸易發(fā)生塑性變形造成泄漏。 　　
3．汽缸的負(fù)荷增減過(guò)快，特別是快速的啟動(dòng)、停機(jī)和工況變化時(shí)溫度變化大、暖缸的方式不正確、停機(jī)檢修時(shí)打開(kāi)保溫層過(guò)早等，在汽缸中和發(fā)蘭上產(chǎn)生很大的熱應(yīng)力和熱變形。 　　
4．汽缸在機(jī)械加工的過(guò)程中或經(jīng)過(guò)補(bǔ)焊后產(chǎn)生了應(yīng)力，但沒(méi)有對(duì)汽缸進(jìn)行回火處理加以消除，致使汽缸存在較大的殘余應(yīng)力，在運(yùn)行中產(chǎn)生*的變形。 　　
5．在安裝或檢修的過(guò)程中，由于檢修工藝和檢修技術(shù)的原因，使內(nèi)缸、汽缸隔板、隔板套及汽封套的膨脹間隙不合適，或是掛耳壓板的膨脹間隙不合適，運(yùn)行后產(chǎn)生巨大的膨脹力使汽缸變形。 　　
6．使用的汽缸密封劑質(zhì)量不好、雜質(zhì)過(guò)多或是型號(hào)不對(duì)；汽缸密封劑內(nèi)若有堅(jiān)硬的雜質(zhì)顆粒就會(huì)使密封面難以緊密的結(jié)合。 　　
7．汽缸螺栓的緊力不足或是螺栓的材質(zhì)不合格。汽缸結(jié)合面的嚴(yán)密性主要靠螺栓的緊力來(lái)實(shí)現(xiàn)的。機(jī)組的起停或是增減負(fù)荷時(shí)產(chǎn)生的熱應(yīng)力和高溫會(huì)造成螺栓的應(yīng)力松弛. 163447 DNC-80-25-PPV
163433 DNC-80-25-PPV-A
163448 DNC-80-40-PPV
163434 DNC-80-40-PPV-A
163449 DNC-80-50-PPV
163435 DNC-80-50-PPV-A
163450 DNC-80-80-PPV
163436 DNC-80-80-PPV-A
163451 DNC-80-100-PPV
163437 DNC-80-100-PPV-A
163452 DNC-80-125-PPV
163438 DNC-80-125-PPV-A
163453 DNC-80-160-PPV
163439 DNC-80-160-PPV-A
163454 DNC-80-200-PPV
163440 DNC-80-200-PPV-A
163455 DNC-80-250-PPV
163441 DNC-80-250-PPV-A

五一小長(zhǎng)假FESTO氣缸*德國(guó)費(fèi)斯托氣缸
163456 DNC-80-320-PPV
163442 DNC-80-320-PPV-A
163457 DNC-80-400-PPV
163443 DNC-80-400-PPV-A
163458 DNC-80-500-PPV
163444 DNC-80-500-PPV-A
163462 DNC-100- -
163478 DNC-100- -PPV
163464 DNC-100- -PPV-A
163479 DNC-100-25-PPV
163465 DNC-100-25-PPV-A
163480 DNC-100-40-PPV
163466 DNC-100-40-PPV-A
163481 DNC-100-50-PPV
163467 DNC-100-50-PPV-A
163482 DNC-100-80-PPV
163468 DNC-100-80-PPV-A
163483 DNC-100-100-PPV
163469 DNC-100-100-PPV-A
163484 DNC-100-125-PPV
163470 DNC-100-125-PPV-A
163485 DNC-100-160-PPV
163471 DNC-100-160-PPV-A
163486 DNC-100-200-PPV
163472 DNC-100-200-PPV-A
163487 DNC-100-250-PPV
163473 DNC-100-250-PPV-A
163488 DNC-100-320-PPV
163474 DNC-100-320-PPV-A
163489 DNC-100-400-PPV
163475 DNC-100-400-PPV-A
163490 DNC-100-500-PPV
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163494 DNC-125- -
163510 DNC-125- -PPV
163496 DNC-125- -PPV-A
163511 DNC-125-25-PPV
163497 DNC-125-25-PPV-A
163512 DNC-125-40-PPV
163498 DNC-125-40-PPV-A
163513 DNC-125-50-PPV
163499 DNC-125-50-PPV-A
163514 DNC-125-80-PPV
163500 DNC-125-80-PPV-A
163515 DNC-125-100-PPV
163501 DNC-125-100-PPV-A
163516 DNC-125-125-PPV
163502 DNC-125-125-PPV-A
163517 DNC-125-160-PPV
163503 DNC-125-160-PPV-A
163518 DNC-125-200-PPV
163504 DNC-125-200-PPV-A
163519 DNC-125-250-PPV
163505 DNC-125-250-PPV-A
163520 DNC-125-320-PPV
163506 DNC-125-320-PPV-A
163521 DNC-125-400-PPV
163507 DNC-125-400-PPV-A
163522 DNC-125-500-PPV
163508 DNC-125-500-PPV-A
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1922618 DNC-32-30-PPV-A
1922619 DNC-32-60-PPV-A
1922620 DNC-32-70-PPV-A
1922621 DNC-32-150-PPV-A
1922622 DNC-32-300-PPV-A
1922623 DNC-40-20-PPV-A
1922624 DNC-40-30-PPV-A
1922625 DNC-40-60-PPV-A
1922626 DNC-40-70-PPV-A
1922627 DNC-40-150-PPV-A
1922628 DNC-40-300-PPV-A
1922629 DNC-50-20-PPV-A
1922630 DNC-50-30-PPV-A
1922631 DNC-50-60-PPV-A
1922632 DNC-50-70-PPV-A
1922633 DNC-50-150-PPV-A
1922634 DNC-50-300-PPV-A
1922635 DNC-63-20-PPV-A
1922636 DNC-63-30-PPV-A
1922637 DNC-63-60-PPV-A
1922638 DNC-63-70-PPV-A
1922639 DNC-63-150-PPV-A
1922640 DNC-63-300-PPV-A
1922641 DNC-80-20-PPV-A
1922642 DNC-80-30-PPV-A
1922643 DNC-80-60-PPV-A
1922644 DNC-80-70-PPV-A
1922645 DNC-80-150-PPV-A
1922646 DNC-80-300-PPV-A
567890 DNC-32- -PPV-A-C180
567882 DNC-32-50-PPV-A-C180
567883 DNC-32-80-PPV-A-C180
567884 DNC-32-100-PPV-A-C180
567885 DNC-32-125-PPV-A-C180
567886 DNC-32-160-PPV-A-C180
567887 DNC-32-200-PPV-A-C180
567888 DNC-32-250-PPV-A-C180
567889 DNC-32-320-PPV-A-C180
567899 DNC-40- -PPV-A-C180
567891 DNC-40-50-PPV-A-C180
567892 DNC-40-80-PPV-A-C180
567893 DNC-40-100-PPV-A-C180
567894 DNC-40-125-PPV-A-C180

567895 DNC-40-160-PPV-A-C180
567896 DNC-40-200-PPV-A-C180
567897 DNC-40-250-PPV-A-C180
567898 DNC-40-320-PPV-A-C180
567908 DNC-50- -PPV-A-C180
567900 DNC-50-50-PPV-A-C180
567901 DNC-50-80-PPV-A-C180
567902 DNC-50-100-PPV-A-C180
567903 DNC-50-125-PPV-A-C180
567904 DNC-50-160-PPV-A-C180
567905 DNC-50-200-PPV-A-C180
567906 DNC-50-250-PPV-A-C180
567907 DNC-50-320-PPV-A-C180
567917 DNC-63- -PPV-A-C180
567909 DNC-63-50-PPV-A-C180
567910 DNC-63-80-PPV-A-C180