Uma kukhulunywa ngokwakha kanye nobunjiniyela bezakhiwo, ukukhethwa kwezinto kubalulekile ekuqinisekiseni ubuqotho kanye nobude besikhathi sesakhiwo. Enye yezinto ezinjalo ezithole idumela elihle embonini yileIbanga lesi-2 le-ASTM A252Amapayipi Amapayipi. Le bhulogi izohlola imininingwane, izakhiwo, kanye nezidingo zokumaka ze-ASTM A252 Grade 2 ukuze ithole ukuqonda okuphelele ngokubaluleka kwayo kumaphrojekthi okwakha.
Iyini i-ASTM A252 Grade 2?
I-ASTM A252 iyincazelo ejwayelekile yama-tube ensimbi ahlanganisiwe futhi angenamthungo okusetshenziswa kwesisekelo. Ibanga lesi-2 lingenye yamabanga amathathu achazwe kule nqubo, kanti iBanga loku-1 liphansi kakhulu kanti iBanga lesi-3 liphezulu kakhulu ngokwamandla okukhiqiza. Ama-tube e-ASTM A252 eBanga lesi-2 aklanyelwe ukuhlinzeka ngebhalansi yamandla nokuguquguquka, okwenza afaneleke ezinhlotsheni ezahlukene zezicelo, kufaka phakathi izisekelo ezijulile, izakhiwo zasolwandle, kanye nezinye izimo ezithwala imithwalo.
Izakhiwo ezibalulekile ze-ASTM A252 Grade 2 zifaka phakathi amandla okukhiqiza okungenani angu-35,000 psi kanye namandla okudonsa okungenani angu-60,000 psi. Lezi zakhiwo ziqinisekisa ukuthi ama-piles angamelana nemithwalo emikhulu kanye nokucindezeleka, okwenza kube kuhle ukusetshenziswa ezindaweni ezinzima.
Izidingo Zokumaka Amapayipi E-ASTM A252 Ibanga 2
Isici esibalulekile sama-ASTM A252 Grade 2 piles isidingo sokumaka okufanele. I-pile ngayinye kumele imakwe ngokucacile ukuze inikeze ulwazi olubalulekile mayelana nomkhiqizo. Lokhu kumakwa kubalulekile ukuze kulandeleke, kuqinisekiswe ikhwalithi, futhi kuhambisane nezindinganiso zemboni. Imininingwane elandelayo kumele ifakwe ekumakeni:
1. Igama noma uhlobo lomkhiqizi: Lokhu kukhomba umenzi wenqwaba, okuqinisekisa ukuthi umsebenzisi angalandelela umkhiqizo emuva emthonjeni wawo.
2. Inombolo Yokushisa: Inombolo yokushisa iyisihlonzi esiyingqayizivele esabelwe iqembu elithile lensimbi. Ivumela ukuthi kulandelwe imvelaphi nezici zezinto, okubalulekile ekulawulweni kwekhwalithi.
3. Inqubo Yomkhiqizi: Lokhu kubonisa indlela esetshenziswayo ukukhiqiza inqwaba, kungakhathaliseki ukuthi ishiselwe noma ayinamthungo. Ukuqonda inqubo yokukhiqiza kusiza ekuhloleni izici zokusebenza kwenqwaba.
4. Uhlobo Lokuhlangana Okujikelezayo: Uhlobo lokuhlangana okujikelezayo olusetshenziswa kuinqwaba yamapayipikufanele kumakwe, uma kusebenza. Lolu lwazi lubalulekile ekuqondeni ubuqotho besakhiwo senqwaba.
5. Ububanzi Bangaphandle: Ububanzi bangaphandle benqwaba kumele buphawulwe ngokucacile njengoba buyisilinganiso esibalulekile sokufakwa nokubalwa komthwalo.
6. Ubukhulu bodonga obujwayelekile: Ubukhulu bodonga lwenqwaba bungenye indlela ebalulekile yokulinganisa ethinta amandla ayo kanye nomthamo wayo wokuthwala.
7. Ubude nesisindo ngobude: Ubude nesisindo esiphelele ngobude benqwaba kumele kushiwo. Lolu lwazi lubalulekile ekuhleleni izinto kanye nokufakwa kwazo.
8. Igama kanye neBanga lokucaciswa: Okokugcina, ukumaka kumele kufake igama lokucaciswa (ASTM A252) kanye nebanga (Ibanga 2) ukuqinisekisa ukuhambisana nezindinganiso zemboni.
Ekuphetheni
Amapayipi e-ASTM A252 Grade 2 ayisici esibalulekile sokwakhiwa kwesimanje, ahlinzeka ngamandla nokuqina okudingekayo kwezicelo ezahlukahlukene. Ukuqonda izidingo zokucaciswa kanye nokumaka kubalulekile konjiniyela, osonkontileka, kanye nabaphathi bephrojekthi ukuqinisekisa ukuthi basebenzisa izinto ezifanele kumaphrojekthi abo. Ngokulandela lezi zindinganiso, imboni yokwakha ingagcina imikhuba esezingeni eliphezulu futhi iqinisekise ukuphepha nokuphila isikhathi eside kwezakhiwo ezakhiwe kulezi zisekelo.
Isikhathi sokuthunyelwe: Disemba 10-2024