Dalilan gazawar Packer Seal

1. Hanyoyin shigarwa

• Lalacewar ajiya: tsufa (zafi, hasken rana ko radiation); murdiya (tallafin tallafi, nauyi mai nauyi).
• Lalacewar juzu'i: mirgina ko jujjuyawa mara uniform, ko shaƙewa ta zamiya maras mai.
• Yanke da kaifi mai kaifi: Rashin isassun tafe akan sasanninta, kaifi gefuna akan tashar jiragen ruwa, ramukan hatimi da sauransu.
• Rashin man shafawa.
• Kasancewar datti.
• Amfani da kayan aikin shigarwa ba daidai ba.

2. Abubuwan aiki

• Rashin isassun ma'anar aiki: Haɗin ruwan ruwa, yanayin aiki na yau da kullun ko yanayin wucin gadi.
• Cire bawon hatimi saboda mirginawar gida kamar yadda canjin matsa lamba.
• Extrusion saboda faɗaɗa hatimin (ƙumburi, thermal, fashewar fashewa) ko saboda matsawa.
• Ƙananan lokuttan ɓacin rai yana haifar da kumburi.
• Sawa da tsagewa saboda rashin isasshen man shafawa.
• Saka lalacewa saboda canjin matsi.

3. Rayuwar sabis

A lokacin aiki na al'ada, rayuwar sabis na hatimin polymeric yana iyakance ta hanyar tsufa da lalacewa. Yanayin zafin jiki, matsalolin aiki, adadin hawan keke (juyawa, zamewa, damuwa na inji) da yanayin suna da tasiri akan jimlar rayuwar sabis. Tsufa na iya zama al'amari na zahiri kamar nakasar dawwama, ko kuma yana iya zama saboda wani abu da sinadarai a cikin muhalli. Ana iya haifar da sawa ta hanyar shafa hatimin a wani wuri a cikin aikace-aikace masu ƙarfi, ko kuma ta hanyar matsi mai ƙarfi a aikace-aikace masu tsayi. Juriyar lalacewa yana ƙaruwa yawanci tare da ƙara taurin kayan hatimi. Lalacewar sassa na ƙarfe da rashin lubrication na saman yana ƙara yawan lalacewa.

4. Mafi ƙanƙanta da matsakaicin zafin jiki

Ƙarfin rufewa na elastomers yana raguwa sosai idan zafin jiki ya yi ƙasa da yanayin da aka ba da shawarar, saboda hasara na elasticity. Ƙananan kaddarorin zafin jiki na iya taka muhimmiyar rawa a cikin zaɓin zaɓi don hatimin elastomeric don aikace-aikacen ƙananan teku a cikin teku masu sanyi. A yanayin zafi mai girma haɓaka tsufa yana faruwa. Matsakaicin zafin jiki na elastomers ya bambanta tsakanin 100 zuwa 300 ° C. Elastomers waɗanda za a iya sarrafa su a kusa da 300 ° C suna da ƙarancin ƙarfin gabaɗaya da ƙarancin juriya. A cikin ƙirar hatimin, dole ne a tanadi ɗaki don ba da damar faɗaɗa na'urar elastomer saboda haɓakar zafin jiki (ƙarashin zafin jiki na kayan hatimi kusan tsari ɗaya ne na girma fiye da na ƙarfe).

5. Matsin lamba

Matsi da aka yi akan hatimi na iya haifar da nakasar hatimin dindindin (saitin matsawa) .Dole ne a iyakance saitin matsawa don tabbatar da aikin yabo kyauta. Wata matsala da za ta iya tasowa a babban matsi, ita ce kumburi (10-50%) na ƙarar elastomer ta hanyar shayar da ruwa mai kyau daga muhalli. Ƙunƙarar kumburi yana da karɓa idan ƙirar hatimi ya ba da izini don shi.

6. Bambance-bambancen matsa lamba

Dole ne elastomer ya sami kyakkyawan juriya na extrusion idan akwai babban bambancin matsa lamba akan hatimin. Extrusion shine mafi yawan abin da ke haifar da gazawa a cikin babban matsi a yanayin zafi. Ana iya ƙara juriya na extrusion hatimi ta ƙara taurinsa. Ƙunƙarar hatimi na buƙatar tsangwama mafi girma da rundunonin taro don ingantaccen hatimi. Dole ne a yi tazarar da aka hatimce da ƙanƙanta gwargwadon yuwuwa tana buƙatar juriya kaɗan yayin kera.

7. Zagayen matsa lamba

Zagayen matsi na iya haifar da lalacewa ta elastomer ta hanyar fashewar fashewar abubuwa. Tsananin lalacewa ga elastomer zai dogara ne akan abubuwan da ke tattare da iskar gas da ke kan kayan hatimi da kuma yadda saurin matsa lamba ya canza. Abubuwan elastomeric ɗin da suka fi kama da juna (misali Viton) sun fi juriya ga fashewar fashewa fiye da elastomers (kamar Kalrez da Aflas) waɗanda galibi suna ɗauke da ƙananan kogo. Decompression yana faruwa galibi a aikace-aikacen ɗaga gas. Idan hawan hawan matsin lamba ya faru, glandan hatimi yana da kyawawa saboda yana iyakance hauhawar farashin hatimi yayin raguwa. Wannan buƙatun ya ci karo da wajibcin samun ɗaki don faɗaɗa thermal da kumburin hatimi. A cikin aikace-aikace masu ƙarfi ƙwanƙwaran hatimi na iya haifar da lalacewa ko ɗaure na'urar elastomer.

8. Aikace-aikace masu ƙarfi

A cikin aikace-aikace masu ƙarfi, juzu'in hatimin tare da jujjuya ko juzu'i (zamiya) na iya haifar da lalacewa ko extrusion na elastomer. Tare da shinge mai zamewa, mirgina hatimin kuma na iya faruwa, wanda zai iya haifar da lalacewa cikin sauƙi. Halin da ake buƙata shine haɗuwa da manyan matsi da aikace-aikace mai ƙarfi. Domin inganta extrusion juriya na hatimi sau da yawa taurinsa yana ƙaruwa. Tauri mafi girma yana nuna kuma ana buƙatar babban tsangwama da rundunonin taro waɗanda ke haifar da ƙarfin juzu'i. A cikin aikace-aikace masu ƙarfi, kumburin hatimin ya kamata a iyakance shi zuwa 10-20%, saboda kumburi zai haifar da haɓaka ƙarfin juzu'i da lalacewa na elastomer. Muhimmin kadarorin don aikace-aikace masu ƙarfi shine babban juriya, watau ikon kasancewa cikin hulɗa da farfajiya mai motsi.

9. Hatimin wurin zama

Dole ne ƙirar hatimi ta ba da damar (10-60%) kumburi na elastomer a cikin mai da gas. Idan bai isa wurin daki ba fitar hatimin zai faru. Wani muhimmin ma'auni shine girman gibin extrusion. A matsanancin matsananciyar matsananciyar matsananciyar matsananciyar ɓangarorin extrusion kawai ana ba da izinin haifar da buƙatu don ɗaukar haƙuri. A lokuta da yawa ana iya amfani da zoben anti-extrusion. Zane na wurin zama ya kamata kuma yayi la'akari da bukatun shigarwa na hatimi. A lokacin shigarwa elongation na roba (mike) bai kamata ya haifar da nakasawa na dindindin ba kuma kada a lalata elastomer ta sasanninta masu kaifi. Yana da kyau a lura cewa ƙirar hatimin gland suna da aminci a zahiri, saboda ba a shimfiɗa hatimin yayin shigarwa ba, wanda shine yanayin ƙirar hatimin piston. A gefe guda, ƙirar hatimin gland sun fi wahalar kerawa kuma suna da wahalar samun dama don tsaftacewa da maye gurbin hatimi.

10. Dace da hydrocarbons, CO2 da H2S

Shigar da hydrocarbons, CO2 da H2S cikin elastomer yana haifar da kumburi. Kumburi ta hanyar hydrocarbons yana ƙaruwa tare da matsa lamba, zazzabi da abun ciki na kamshi. Ƙarar ƙarar ƙarar da za a iya jujjuyawa tana tare da tausasawa a hankali na kayan. Kumburi da iskar gas kamar H2S, CO2 da O2 yana ƙaruwa da matsa lamba kuma yana raguwa kaɗan tare da zafin jiki. Canje-canjen matsi bayan kumburin hatimin na iya haifar da lalacewar hatimin. H2S yana amsawa tare da wasu polymers, yana haifar da haɗin kai don haka tauraruwar hatimin abu ba zai iya jurewa ba. Lalacewar elastomers a cikin gwaje-gwajen hatimi (da yuwuwar kuma a cikin sabis) gabaɗaya ya yi ƙasa da gwajin nutsewa, mai yiwuwa saboda kariyar da rami hatimi ke bayarwa ga harin sinadarai.

11. Daidaitawa tare da sinadarai na magani mai kyau da masu hana lalata

Masu hana lalata (wanda ke ɗauke da amines) da kuma magance ruwan da aka gama suna da muni sosai a kan elastomers. Saboda hadadden abun da ke ciki na masu hana lalata da kuma magunguna masu kyau ana ba da shawarar don ƙayyade juriya na elastomer ta hanyar gwaji.

Vigor yana da shekaru masu yawa na ƙwarewar masana'antu a cikin samarwa da kuma samar da kayan aikin kammalawa, duk an tsara su, ƙera da sayar da su daidai da ka'idodin API 11 D1. A halin yanzu, ana amfani da fakitin da Vigor ya samar a cikin manyan filayen mai a duniya, kuma ra'ayoyin abokan ciniki a kan shafin ya kasance mai kyau sosai, kuma duk abokan ciniki suna shirye don samun ƙarin haɗin gwiwa tare da mu. Idan kuna sha'awar fakitin Vigor ko wasu kayan aikin hakowa da gamawa don masana'antar mai da iskar gas, don Allah kar ku yi shakka don tuntuɓar ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun Vigor don samun tallafin fasaha na ƙwararru da mafi kyawun samfuran inganci.