1. Ububanzi kanye Nokuhlukaniswa

Inqubo Yokukhiqiza: Isebenza kumapayipi ensimbi ahlanganisiwe njenge-electric resistance welding (ERW) kanye ne-submerged arc welding (SAW).

Ukuhlukaniswa: Kuhlukaniswe ngokweSigaba A (izinga eliyisisekelo) kanye neSigaba B (izinga elithuthukisiwe) ngokuya ngobulukhuni bokuhlolwa. I-P355NH ivame ukulethwa njengeSigaba B.

2. Izimo Zokulethwa Ezijwayelekile

Ikhwalithi Yomphezulu: Azikho iziphambeko ezifana nokuqhekeka nokugoba. Isikali se-oxide esincane siyavunyelwa (asithinti ukuhlolwa).

Ukumaka: Ipayipi ngalinye lensimbi kumele limakwe ngenombolo ejwayelekile, izinga lensimbi (P355NH), usayizi, inombolo yesithando somlilo, njll. (EN 10217-1).

Ukubekezelelana kobukhulu (EN 10217-1)

Ipharamitha	Izidingo zokubekezelelana kweKlasi B (kusebenza ku-P355NH)	Indlela yokuhlola (EN)
Ububanzi obungaphandle (D)	±0.75% D noma±1.0mm (inani elikhulu)	I-EN ISO 8502
Ubukhulu bodonga (t)	+10%/-5% t (t)≤15mm)	Ukulinganiswa kobukhulu be-Ultrasonic (EN 10246-2)
Ubude	+100/-0 mm (ubude obungaguquki)	Ububanzi be-laser

 

Imininingwane ebalulekile yenqubo yepayipi lensimbi le-P355NH

1. Ukulawulwa kwenqubo yokushisela (EN 10217-3)

Ipayipi lensimbi le-ERW:

Ukwelashwa kokushisa ku-inthanethi kuyadingeka ngemuva kokushisela imvamisa ephezulu (ukushisa kokungeniswa kufinyelele ku-550~600℃kanye nokupholisa kancane).

Ukulawulwa kokukhishwa komthungo we-Weld:≤Ubukhulu bodonga obungu-10% (ukugwema ukuhlangana okungaphelele). 

Ipayipi lensimbi le-SAW: 

Ukushisela ngezintambo eziningi (izintambo ezingu-2 ~ 4), okokufaka ukushisa≤35 kJ/cm (ukuvimbela ukujiya kwe-HAZ). 

1. Imininingwane yokwelashwa kokushisa (EN 10217-3 + EN 10028-3)

Inqubo	amapharamitha	Inhloso
Ukulungisa (N)	910±10℃×1.5min/mm, ukupholisa umoya	Hlanza okusanhlamvu kube yibanga le-ASTM 6~8
Ukunciphisa ukucindezeleka (SR)	580~620℃×2min/mm, ukupholisa isithando somlilo (≤200℃/h)	Susa ukucindezeleka okusele kokushisela

3. Ukuhlola okungabhubhisi (EN 10217-1 + EN 10217-3)

Ukuhlolwa kwe-UT:

Ukuzwela:ΦUmgodi ongezansi oyisicaba ongu-3.2mm (EN ISO 10893-3). 

Ukumbozwa: 100% weld + 10mm impahla yabazali kuzo zombili izinhlangothi. 

Ukuhlolwa kwengcindezi yamanzi: 

Ingcindezi yokuhlola = 2×ingcindezi yokusebenza evumelekile (ubuncane be-20MPa, ukubamba ingcindezi≥15s).

Izidingo ezengeziwe zezicelo ezikhethekile

1. Ukuqina komthelela wokushisa okuphansi (-50℃)

Imibandela eyengeziwe yesivumelwano:

Amandla omthelela≥60J (isilinganiso), isampula eyodwa≥45J (EN ISO 148-1). 

Sebenzisa inqubo ye-Al+Ti composite deoxidation ukunciphisa okuqukethwe yi-oxygen (≤30ppm). 

2. Amandla okukhuthazela okushisa okuphezulu (300)℃)

Ukuhlolwa okwengeziwe:

Amandla okuqhekeka kokuqhekeka kwamahora ayi-10^5≥150 MPa (ISO 204).

Idatha yokudonsa yokushisa okuphezulu (Rp0.2@300)℃ ≥Kudingeka i-300 MPa).

3. Izidingo zokumelana nokugqwala

Inqubo yokuzikhethela:

Ukuchama kwangaphakathi odongeni (izinga le-Sa 2.5, EN ISO 8501-1).

Udonga lwangaphandle lumbozwe nge-alloy ye-Zn-Al (150g/m2).², Isijobelelo B se-EN 10217-1).

Imibhalo Yekhwalithi kanye Nesitifiketi (EN 10217-1)

Isitifiketi Sokuhlola:

Isitifiketi se-EN 10204 3.1 (ukuzihlola kwesitshalo sensimbi) noma isitifiketi se-3.2 (isitifiketi somuntu wesithathu).

Kumelwe kufake: ukwakheka kwamakhemikhali, izakhiwo zemishini, imiphumela ye-NDT, ijika lokwelashwa kokushisa.

Ukumaka okukhethekile:

Amapayipi okushisa okuphansi aphawulwe ngo-"LT" (-50℃). 

Amapayipi okushisa okuphezulu aphawulwe ngo-"HT" (+300℃).

Izinkinga ezivamile kanye nezixazululo

Inkinga Engavamile	Ukuhlaziywa Kwembangela	Izixazululo (Ngokusekelwe Ezindinganisweni)
Amandla omthelela anganele we-welds	izinhlamvu ze-HAZ eziqinile	lungisa okokufaka ukushisa kokushisela≤25 kJ/cm (EN 1011-2)
Ukuvuza kokuhlolwa kwe-hydraulic	Amapharamitha omshini wokuqondisa angalungile	Ukuhlolwa kabusha kwe-UT kwengxenye yonke yepayipi + ukuhlolwa kwe-x-ray yendawo (EN ISO 10893-5)
Ukuphambuka kobukhulu (ukuqanda)	Amapharamitha omshini wokuqondisa angalungile	Ukuqondisa kabusha (EN 10217-1)

Ngokuhlanganisa imigomo ejwayelekile ye-BS EN 10217-1 nezidingo ezikhethekile ze-BS EN 10217-3, ikhwalithi yenqubo yonke yepayipi lensimbi le-P355NH kusukela ekukhethweni kwezinto kuya ekwamukelweni komkhiqizo oqediwe ingalawulwa ngokuphelele. Uma uthenga, kunconywa ukucaphuna ngokucacile inguqulo ejwayelekile (njenge-BS EN 10217-3:2002+A1:2005) kanye nezivumelwano zobuchwepheshe ezengeziwe (njenge--50).℃izidingo zomthelela) kwinkontileka.