Indima Yendandatho Yokusekela Esakhiweni Sokuvala Amavalvu Namaphuzu Okucubungula Okunakwayo
Indandatho yokusekela izingxenye ezinjalo, esakhiweni sonke sesivalo ingeyezingxenye ezibalulekile 'ezifihliwe'. Abasebenzisi abaningi abayinaki kakhulu, kodwa empeleni, uma umklamo noma ukucubungula kungasekho, ukusatshalaliswa kwamandla okucindezela kwesivalo sesihlalo se-valve, indandatho ye-PTFE izoba nomthelela omkhulu, ikakhulukazi ekushintsheni komfutho ophezulu noma kwezinga lokushisa endaweni okusobala kakhulu.
Ngaphambilini sibhekane nephrojekthi yamakhasimende aseNyakatho Afrika, isihlalo se-valve sisebenzisa isakhiwo sensimbi esihambisana nezinhlangothi ezimbili + isakhiwo esiguquguqukayo se-seal, indandatho ye-PTFE ekufakweni kokuqala akuyona inkinga, kodwa isebenza ezinyangeni ezimbalwa ngemuva kokutholakala kokwehla kokusebenza kokuvala, kanye nokuguqulwa kwe-extrusion kwe-seal. Ngemva kokubuyela efektri ukuze kuhlolwe isidumbu, kwatholakala ukuthi inkinga kwakuwukuphambuka kobukhulu bendandatho yokusekela + i-chamfer yangaphakathi yayijule kakhulu, okwaholela emandleni angalingani.
Kulesi simo, sinikeza iziphakamiso ezilandelayo: Okokuqala, ukucutshungulwa kwendandatho yokusekela akukwazi nje 'ngokusho komdwebo wendilinga', isihluthulelo sisekulawuleni ukubekezelelana kanye nesiqondiso sokugoba; Okwesibili, ngokwezinga lokucindezela kwezinto zokuvala ukushiya umkhawulo wokucindezela, ikakhulukazi egobolondweni lensimbi lepayipi ngokwandiswa njalo nokufinyela kwendandatho yokusekela uma ubuso bokuhlangana sebukhululekile, kulula ukukususa kalula. Ukucindezela kuzophambuka kalula esivalweni esithambile.
Esigabeni sokucubungula, indandatho yokusekela iyanconywa ukuthi iguqulwe ngokushelela kusuka kuma-bushing aqediwe noma ama-forging aqinile, kanti indilinga yangaphandle, imbobo yangaphakathi kanye nesinyathelo kufanele kuqedwe ngokubambelela okukodwa ukulawula ukugeleza kanye nokugxila. Uma siphendula lolu hlobo lwezingxenye, ngokuvamile silawula ubulukhuni bomphezulu ngaphakathi kwe-Ra 1.6, ubuso obuyisihluthulelo i-Ra 0.8, siqondise isiqondiso ngokwesiqondiso sokuhlanganiswa ukuze sigweme ukulimala emaphethelweni endandatho yokuvala.
Nakuba intengo yendandatho yokusekela ingekho phezulu, kodwa inomthelela omkhulu ekuzinzeni kwe-valve seal yonke. Kunconywa ukuthi ikhasimende elisesigabeni sokudweba licacise ukulandelana kwe-assembly, i-compression stroke kanye ne-datum position, uma kudingeka, linikeze isihlalo se-valve noma umzimba we-valve isakhiwo se-diagram, ukuze sixhumanise ukuhlolwa komphumela wesakhiwo jikelele. Uhlangothi lwethu lungasiza futhi ekulingiseni isimo sokulingana okushisa, kusengaphambili ukuze kwahlulelwe ingozi yokufuduka kwe-seal ngaphansi kokucindezeleka okuphezulu noma izinga lokushisa eliphezulu.