⒈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。
⒉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。
⒊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，在汽缸中和法蘭上產(chǎn)生很大的熱應(yīng)力和熱變形。
⒋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。
⒌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
⒍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。
⒎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?；蚴窃鰷p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，如果應(yīng)力不足，螺栓的預(yù)緊力就會(huì)逐漸減小。如果汽缸的螺栓材質(zhì)不好，螺栓在長(zhǎng)時(shí)間的運(yùn)行當(dāng)中，在熱應(yīng)力和汽缸膨脹力的作用下被拉長(zhǎng)，發(fā)生塑性變形或斷裂，緊力就會(huì)不足，使汽缸發(fā)生泄漏的現(xiàn)象。
⒏汽缸螺栓緊固的順序不正確。一般的汽缸螺栓在緊固時(shí)是從中間向兩邊同時(shí)緊固，也就是從垂弧zui大處或是受力變形zui大的地方緊固，這樣就會(huì)把變形zui大的處的間隙向汽缸前后的自由端轉(zhuǎn)移，zui后間隙漸漸消失。如果是從兩邊向中間緊，間隙就會(huì)集中于中部，汽缸結(jié)合面形成弓型間隙，引起蒸汽泄漏。

SMC氣缸型號(hào)：
CHDKGB50-10
CHDKGB50-100
CHDKGB50-15
CHDKGB50-15M
CHDKGB50-20
CHDKGB50-25
CHDKGB50-35
CHDKGB50-40
CHDKGB50-50
CHDKGB50-75
CHDKGB5050MXC62
CHDKGB63-100
CHDKGB63-25
CHDKGB63-30
CHDKGB63-35
CHDKGB63-35M
CHDKGB63-40
CHDKGB63-50
CHDKGB63-75
CHDKGB63-80M
CHDKGB80-100
CHDKGB80-100M
CHDKGB80-15M
CHDKGB80-150
CHDKGB80-25
CHDKGB80-50
CHDKGB80-75
CKZ3T50-90T
CKZT50-A015CB
CKZ3T63-105T
CKZT63-A045CS
CKZ1N50-135LT
CKZ1N50-135RT
CKZ2N50-120RT
CKZ2N50-135RT
CKZ3N50-45DT
CKZ3N50-90DP
CKZ3N63-45DP
CKZ3N63-90DT
CKZ-50A011
CKZN50-135LN
CKZN50-135RN
CKZT40-135T
CKZT40-30T
CKZT40-45T
CKZT40-60T
CKZT40-A015CS
CKZT40-A015LS
CKZT40-A015RS
CKZT40-A045CS
CKZT63-120T
CKZT63-A045CS
CKZT63-A045LS
CKZT63-A045RS
CKZT63TN-120T
CKA80-KRF0027-75Y-P5DWZ
CKA-K75
CKA-Y04
CKA-YA04
CKB40-17-102B
CKB40-18-207A
CKB40-18-207B
CKB-Y04
CKCV32-135B-RH
CKG1A40-100
CKG1A40-100Y
CKG1A40-100YA
CKG1A40-125
CKG1A40-125Y
CKG1A40-125YA
CKG1A40-50
CKG1A40-50Y
CKG1A40-50YA
CKG1A40-50YA-P
CKG1A40-50Y-P
CKG1A40-50YZ
CKG1A40-75Y
CKG1A40-75YA
CKG1A40-75YA-P
CKG1A40-75Y-P
CKG1A40-75Y-P5DWL
CKG1A40-75YZ
CKG1A50-100
CKG1A50-100Y
CKG1A50-100YA
CKG1A50-100YABD-L
CKG1A50-100YA-P
CKG1A50-100YBD-L
CKG1A50-100Y-P
CKG1A50-125-X276A
CKG1A50-125Y
CKG1A50-125YA
CKG1A50-125YABD-L
CKG1A50-125YAD
CKG1A50-125YA-P
CKG1A50-125YBD-L
CKG1A50-125YD
CKG1A50-125Y-P
CKG1A50-150
CKG1A50-150Y
CKG1A50-150YA
CKG1A50-150YABD-L
CKG1A50-150YBD-L
CKG1A50-40YA
CKG1A50-50
CKG1A50-50Y
CKG1A50-50YA
CKG1A50-50YA-X276A
CKG1A50-50YA-X276B
CKG1A50-50YABDL
CKG1A50-50YA-P
CKG1A50-50YBDL
CKG1A50-50Y-P
CKG1A50-50Y-X276A
CKG1A50-50Y-X276B
CKG1A50-75
CKG1A50-75Y
CKG1A50-75YA
CKG1A50-75YABDL
CKG1A50-75YA-P
CKG1A50-75YA-X738
CKG1A50-75YBDL
CKG1A50-75Y-P
CKG1A50-75Y-X1515
CKG1A50-75Y-X738
CKG1A50-75YZ
CKG1A63-100
CKG1A63-100-P
CKG1A63-100Y
CKG1A63-100YA
CKG1A63-100YABD-L
CKG1A63-100YA-P
CKG1A63-100YBD-L
CKG1A63-100Y-P
CKG1A63-125
CKG1A63-125B
CKG1A63-125Y
CKG1A63-125YA
CKG1A63-125YABD-L
CKG1A63-125YAD
CKG1A63-125YA-P
CKG1A63-125YBD-L
CKG1A63-125YD
CKG1A63-125Y-P
CKG1A63-150Y
CKG1A63-150YA
CKG1A63-150YABD-L
CKG1A63-150YA-L
CKG1A63-150YA-P
CKG1A63-150YBD-L
CKG1A63-150Y-L
CKG1A63-150Y-P
CKG1A63-150Z
CKG1A63-200Y
CKG1A63-200Y-P
CKG1A63-30
CKG1A63-300Y-P
CKG1A63-50
CKG1A63-50Y
CKG1A63-50YA
CKG1A63-50YABDL
CKG1A63-50YA-P
CKG1A63-50YBDL
CKG1A63-50Y-P
CKG1A63-75
CKG1A63-75Y
CKG1A63-75YA
CKG1A63-75YABDL
CKG1A63-75YA-P
CKG1A63-75YBDL
CKG1A63-75Y-P
CKG1A63-75Y-P
CKG1A63-KRF0028-125YBDL
CKG1A63-KRF0028-75YBD
CKG1B40-50
CKG1B40-50Y
CKG1B40-50YA
CKG1B50-100
CKG1B50-100I
CKG1B50-100Y
CKG1B50-100YA
CKG1B50-100YA-X276A
CKG1B50-100YAL
CKG1B50-100YL
CKG1B50-100Y-X276A
CKG1B50-125Y
CKG1B50-125YA
CKG1B50-125YAL
CKG1B50-125YL
CKG1B50-150
CKG1B50-150Y
CKG1B50-150YA
CKG1B50-25Y
CKG1B50-25YA
CKG1B50-50
CKG1B50-50-P
CKG1B50-50-X1515
CKG1B50-50Y
CKG1B50-50YA
CKG1B50-75Y
CKG1B50-75YA
CKG1B50-75YA-X276A
CKG1B50-75YAL
CKG1B50-75YL
CKG1B50-75Y-X276A
CKG1B63-100
CKG1B63-100Y
CKG1B63-100YA
CKG1B63-100YA-P
CKG1B63-100YZ
CKG1B63-125
CKG1B63-125I
CKG1B63-125Y
CKG1B63-125YA
CKG1B63-150Y
CKG1B63-150YA
CKG1B63-50
CKG1B63-50Y
CKG1B63-50YA
CKG1B63-50Z
CKG1B63-75
CKG1B63-75Y
CKG1B63-75YA
CKG1P63-150YA-P
CKG1P63-150Y-P
CKG40-R050
CKG40-R075
CKG40-R100
CKGA100-125Y
CKGA100-150YL
CKGA100-150Y-P
CKGA32-100Y-X1046
CKGA32-125Y-X1046
CKGA32-75Y-X1046
CKGA32-B6859-100Y
CKGA32-B6859-125Y
CKGA32-B6859-150Y
CKGA32-B6859-50Y
CKGA32-B6859-75Y
CKGA80-100Y
CKGA80-125Y
CKGA80-150YL
CKGA80-50Y
CKP1A63-100Y
CKP1A63-100YA
CKP1A63-125
CKP1A63-125Y
CKP1A63-125YA
CKP1A63-125YA-P74
CKP1A63-125Y-P74
CKP1A63-150
CKP1A63-150Y-P74-85G-X906
CKP1A63-150Y
CKP1A63-150YA
CKP1A63-200Y
CKP1A63-200YA
CKP1A63-50Y-P74-85G-X1442
CKP1A63-50Y
CKP1A63-50YA
CKP1A63-75Y
CKP1A63-75YA
CKP1A63-75YA-P74
CKP1A63-75Y-P74
CKP1A63-75Y-P74-85G-X404
CKP1A63-B5052-50Y
CKP1A63-S0971-50
CKP1A63-S0971-75
CKP1AM63-200Y
CKPA80-150Y
CKQ40-25-DCH244DH
CKQ40-25-DCH245DH
CKQ40-25-DCH248DH
CKQ40-25-DCH249DH
CKQ40-P6136-25
CKQ40-P6138-25
CKQ40-P6140-25
CKQ40-P6142-25
CKQ40-P9616-25
CKQ40-W0377-25
CKQ40-W0378-25
CKQ40-W3950-25
CKQ40-W3951-25
CKQ50-15-DCJ9682J
CKQ50-DCG2437GA15
CKQ50-DCG2438GA15
CKQ50-DCG5907GL12
CKQ50-DCG5918GCA15
CKQ50-DCG7225G-16
CKQ50-DCG7226G-16
CKQ50-DCG5918GCA15
CKQ50-P5743-30
CKQ50-P7118-30
CKQ50-W3247-15
CKQ50-W3247A15
CKQ50-W3247B15
CKQ50-W8040A15
CKQ50-W8041A15
CKQGDB50-199RALS
CKQN50-25-155WA
CKQN50-25-158WA
CKQSC50-125RC
CKQSF50-125RDS
CHDKGB80150XB11
CHDMB20-Z0860
CHDMB20-200
CHDMB20-25
CHDMB20-40
CHDMB20-75
CHDMB20Z0860155
CHDMB25-50
CHDMB25-75
CHDMB32-100
CHDMB32-80
CHDMB40-250
CHDMB40K
CHDMC20-75
CHDMC32-80
CHDMC40-25
CHDMF20-40
CHDMF25-40
CHDMF32-350
CHDMF32-50
CHDMF32K
CHDMG20-205
CHDMG32-75
CHDML20-400
CHDML25-200
CHDQB100-100
CHDQB100-100D
CHDQB100-25D
CHDQB100-50D
CHDQB100-75D
CHDQB100R184910
CHDQB20-0128624

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