Ungayenza kanjani i-SML Pipe Tensile Test ngokwe-EN877?

Emikhiqizweni eyenziwe nge-spheroidal graphite cast iron, amandla okudonsa kufanele alinganiswe ngokuhambisanaI-EN 598:2007+A1:2009, 6.3. Emikhiqizweni eyenziwe ngensimbi empunga noma olunye uhlobo lwensimbi empunga, ukunqunywa kwamandla okudonsa kufanele kwenziwe ngokuhambisana no-2 noma u-3.

Chaza amandla okuthamba kumapayipi ensimbi ampunga kanye nokufakwa kwawo

1. Amasampula

Ukuze kutholakale imiphumela emele ngangokunokwenzeka imikhiqizo eqediwe, ukuhlolwa kokucindezelwa kufanele kwenziwe kumasampula:noma kuthathwe kuAmapayipi e-SMLnoma izihlanganisi zamapayipi ensimbi ephonswe ngensimbi. Isampula kufanele isikwe ngokuhambisana ne-axis yepayipi noma izihlanganisi; noma kuphela izihlanganisi, ezivela ezingcezu zokuhlola eziphonswe ngokwehlukana, eziphonswe ngesikhathi esifanayo nezihlanganisi.

Ingxenye yokuhlola enqunywe kusampula kufanele ihambisane neMifanekiso, futhi uma ivela ezingcezwini zokuhlola ezibunjiwe ngokwehlukana, ingaba yisicaba kunokuba igobe.

2. Imishini kanye Nendlela Yokuhlola

Umshini wokuhlola kumele ube nemishini efanele ukuvumela ukusetshenziswa kwamandla okuhlola ngaphandle kokushelela.
Umshini wokuhlola uzokwazi ukuthuthukisa amandla anele ukuphula izingcezu zokuhlola ngenkathi ubonisa umthwalo osetshenziswayo.
Ukunemba komshini wokuhlola kufanele kuhambisaneI-EN IS0 6892-1:2019, Isigaba 9.
Isivinini sokusetshenziswa komthwalo kufanele sihambisane ngangokunokwenzeka ngokuhambisanaI-EN IS0 6892-1:2019, Isigaba 10.
Amandla okudonsa kufanele abalwe ngokuhlukanisa amandla aboniswe ekuqhekekeni ngendawo yesigaba sokuqala sokuwela sengxenye yokuhlola. Ingxenye yokuwela (ububanzi nobukhulu) kufanele ilinganiswe ngokunemba okungu-0,1 mm ngaphambi kokuhlolwa.

3. Ukuqinisekiswa Kokuhlolwa Kwamandla Okuqinela

Ukuhlolwa kuthiwa kuyasebenza uma kufezwa imibandela elandelayo:

• kumapayipi: isilinganiso samanani amathathu athathwe ekukhiqizweni kosuku olulodwa kufanele okungenani sibe yi-200 MPa futhi inani elilodwa eliphezulu lingaba phakathi kwe-180 MPa kanye ne-200 MPa;
• kokufakwa: wonke amanani kufanele okungenani abe yi-150 MPa

Imiphumela Yokuhlolwa Okuqinile

Chofoza ukuze ubuke Kuyini i-EN13501-1:2018 (Ipayipi le-DS SML A1)