1. Umda kunye noHlelo

Inkqubo yokuvelisa: Isebenza kwimibhobho yentsimbi edityanisiweyo efana ne-welding resistance yombane (ERW) kunye ne-arc welding efakwe emanzini (SAW).

Ukuhlelwa: Kuhlelwa kwiKlasi A (inqanaba elisisiseko) kunye neKlasi B (inqanaba eliphezulu) ngokobungqongqo bokuhlolwa. I-P355NH ihlala ihanjiswa njengeKlasi B.

2. IMiqathango yoNikezo Jikelele

Umgangatho womphezulu: Akukho ziphene ezinje ngeentanda kunye nokugotywa. Isikali esincinci se-oxide sivumelekile (asichaphazeli ukuhlolwa).

Ukumakisha: Ipayipi nganye yensimbi kufuneka ibhalwe ngenombolo eqhelekileyo, ibakala lensimbi (P355NH), ubukhulu, inombolo yesithando somlilo, njl. (EN 10217-1).

Ukunyamezelana komda (EN 10217-1)

Ipharamitha	Iimfuno zokunyamezelana zodidi B (zisebenza kwi-P355NH)	Indlela yovavanyo (EN)
Idayimitha yangaphandle (D)	±0.75% D okanye±1.0mm (ixabiso elikhulu)	EN ISO 8502
Ubukhulu bodonga (t)	+10%/-5% t (t≤15mm)	Umlinganiselo wobukhulu be-ultrasonic (EN 10246-2)
Ubude	+100/-0 mm (ubude obuzinzileyo)	Uluhlu lweLaser

 

Iinkcukacha eziphambili zenkqubo ye-P355NH yensimbi yombhobho

1. Ulawulo lwenkqubo yeWelding (EN 10217-3)

Umbhobho wentsimbi we-ERW:

Unyango lobushushu be-Intanethi luyafuneka emva kwe-welding ephezulu-frequency (ukufudumeza kwe-induction ukuya kwi-550 ~ 600℃kunye nokupholisa okucothayo).

Ulawulo lwe-weld seam extrusion:≤I-10% yobunzima bodonga (ukuphepha ukudibanisa okungaphelelanga). 

SAW umbhobho wentsimbi: 

I-Multi-wire welding (2 ~ 4 iingcingo), igalelo lobushushu≤35 kJ/cm (ukuthintela ukurhabula kweenkozo zeHAZ). 

1. Iinkcukacha zonyango lobushushu (EN 10217-3 + EN 10028-3)

Inkqubo	iiparamitha	Injongo
Ukulungelelanisa (N)	910±10℃×1.5min/mm, ukupholisa umoya	Cokisa iinkozo ukuya kwibakala le-ASTM 6~8
Ukunciphisa uxinzelelo loxinzelelo (SR)	580~620℃×2min/mm, ukupholisa iziko (≤200℃/h)	Ukuphelisa uxinzelelo olushiyekileyo lwe-welding

3. Uvavanyo olungonakalisi (EN 10217-1 + EN 10217-3)

Uvavanyo lwe-UT:

Uvakalelo:Φ3.2mm umngxuma ophantsi osicaba (EN ISO 10893-3). 

Ukhuselo: 100% weld + 10mm izinto zomzali kumacala omabini. 

Uvavanyo loxinzelelo lwamanzi: 

Uxinzelelo lovavanyo = 2×uxinzelelo lokusebenza oluvumelekileyo (ubuncinci be-20MPa, ukubamba uxinzelelo≥15s).

Iimfuno ezongezelelweyo zezicelo ezizodwa

1. Ukuqina kwempembelelo yobushushu obuphantsi (-50℃)

Imiqathango yesivumelwano esongezelelweyo:

Amandla empembelelo≥60J (umyinge), umzekelo omnye≥I-45J (EN ISO 148-1). 

Sebenzisa inkqubo ye-Al+Ti ye-composite deoxidation ukunciphisa umxholo we-oxygen (≤30ppm). 

2. Amandla okunyamezela ubushushu obuphezulu (300℃)

Uvavanyo olongezelelweyo:

10 ^ 5 iiyure ukukhasa ukugqabhuka amandla≥I-150 MPa (ISO 204).

Idatha yobushushu obuphezulu (Rp0.2@300℃≥300 MPa) iyafuneka.

3. Iimfuno zokuxhathisa ukubola

Inkqubo yokuzikhethela:

Ngaphakathi udubulo udonga peening (Sa 2.5 kwinqanaba, EN ISO 8501-1).

Udonga lwangaphandle lufakwe i-Zn-Al alloy (150g / m², IsiHlomelo B se-EN 10217-1).

Amaxwebhu asemgangathweni kunye neSiqinisekiso (EN 10217-1)

Isatifikethi sokuHlola:

EN 10204 3.1 Isiqinisekiso (ukuzihlola kwesityalo sentsimbi) okanye 3.2 Isiqinisekiso (isiqinisekiso somntu wesithathu).

Kufuneka ibandakanye: ukubunjwa kweekhemikhali, iipropati zoomatshini, iziphumo ze-NDT, i-curve yonyango lobushushu.

Ukumakishwa okukhethekileyo:

Imibhobho yobushushu obuphantsi ibhalwe "LT" (-50℃). 

Imibhobho yobushushu obuphezulu iphawulwe ngo-"HT" (+300℃).

Iingxaki eziqhelekileyo kunye nezisombululo

Ingxaki yeNgxaki	Uhlalutyo lwesizathu	Izisombululo (Ngokusekwe kwiMigangatho)
Amandla anganelanga empembelelo yewelds	iinkozo zeHAZ ezirhabaxa	lungisa igalelo lobushushu be-welding≤25 kJ/cm (EN 1011-2)
Ukuvuza kovavanyo lwe-hydraulic	Iiparamitha zomatshini wokulungisa ngokungafanelekanga	Ukuhlolwa kwakhona kwe-UT yalo lonke icandelo lombhobho + uhlolo lwerediyo yengingqi (EN ISO 10893-5)
Ukutenxa komgangatho (ovality)	Iiparamitha zomatshini wokulungisa ngokungafanelekanga	Ukulungelelanisa kwakhona (EN 10217-1)

Ngokudibanisa imigaqo jikelele ye-BS EN 10217-1 kunye neemfuno ezikhethekileyo ze-BS EN 10217-3, umgangatho wenkqubo yonke ye-P355NH yepayipi yensimbi ukusuka ekukhethweni kwezinto eziphathekayo ukuya ekugqityweni kwemveliso yokwamkelwa kunokulawulwa ngokupheleleyo. Xa kuthengwa, kucetyiswa ukuba ucaphule ngokucacileyo inguqulelo eqhelekileyo (efana ne-BS EN 10217-3:2002+A1:2005) kunye nezivumelwano zobugcisa ezongezelelweyo (ezifana ne-50℃iimfuno zempembelelo) kwikhontrakthi.