I-JIS G 3452ngumgangatho waseJapan ochaza umbhobho wentsimbi yekhabhoni odibeneyo wokuthutha umphunga, amanzi, ioyile, igesi, umoya, njl.njl. kuxinzelelo olusebenzayo oluphantsi. I-JIS G 3452 inebanga elinye kuphela, i-SGP, elinokwenziwa nge-resistance welding (ERW) okanye nge-butt welding.
I-JIS G 3452 Imibhobho yentsimbi mayiyenziwe kusetyenziswa indibaniselwano efanelekileyo yeendlela zokwenza imibhobho kunye neendlela zokugqiba.
| Isimboli yebanga | Uphawu lwenkqubo yokuvelisa | Uhlu lwe-zinc-coating | |
| Inkqubo yokuvelisa imibhobho | Indlela yokugqiba | ||
| I-SGP | Ukumelana kombane okudibeneyo: E I-butt welded: B | Igqityiwe ngobushushu: H Igqityiwe ngokubandayo: C Njengoko ukumelana nombane kudityanisiwe: G | Imibhobho emnyama: imibhobho engafakwanga i-zinc-coating Iipayipi ezimhlophe: iipayipi ezifakwe i-zinc-coating |
Iipayipi zihlala zithunyelwa njengoko zenziwe. Iipayipi ezigqityiweyo zibanda kufuneka zifakwe emanzini emva kokwenziwa.
Ukuba umbhobho wenziwe yi-ERW, ii-welds ezikwindawo engaphakathi nengaphandle yombhobho kufuneka zisuswe ukuze kufunyanwe i-weld egudileyo ecaleni kombhobho.
Ukuba incinci ngenxa yobubanzi bombhobho okanye izixhobo, njl.njl., i-weld kumphezulu ongaphakathi ayinakususwa.
Ukulungiselela: Ngaphambi kokuba kufakwe i-hot-dip galvanizing, umphezulu wombhobho wentsimbi kufuneka ucocwe kakuhle ngesanti, i-pickling, njl.njl.
Ubukhulu: Kwi-zinc-coating, i-distilled zinc ingot Class 1 echazwe kwi-JIS H 2107 okanye i-zinc enomgangatho olinganayo nobuncinci iya kusetyenziswa.
Okunye: Ezinye iimfuneko eziqhelekileyo zokufaka i-galvanizing zihambelana ne-JIS H 8641.
Uvavanyo: Ukulinganiswa kokufana kwengubo egqunyiweyo ngokwe-JIS H 0401 Inqaku 6.
Ukongeza kwizinto ezinikiweyo, ezinye izinto zokudibanisa zingongezwa njengoko kufuneka.
| Uphawu lwebanga | I-P (iPhosphorus) | S (Isalfure) |
| I-SGP | ubuninzi 0.040 % | ubuninzi 0.040 % |
I-JIS G 3452 ayinamiqathango ingako malunga nokwakheka kweekhemikhali kuba i-JIS G 3452 isetyenziswa kakhulu kwiinjongo ezibanzi ezifana nokuthuthwa komphunga, amanzi, ioyile, kunye negesi yendalo. Ukwakheka kweekhemikhali kwezinto akuyonto ibalulekileyo, kodwa ziimpawu zoomatshini zombhobho zokumelana noxinzelelo olusebenzayo.
Iipropati zokuThatha
| Uphawu lwebanga | Tensile strength | Ukwandiswa, ubuncinci, % | ||||||
| Isiqwenga sovavanyo | Uvavanyo isikhombisi-ndlela | Ubukhulu bodonga, mm | ||||||
| N/mm² (MPA) | ＞3 ≤ 4 | ＞4 ≤ 5 | ＞5 ≤ 6 | ＞6 ≤ 7 | ＞7 | |||
| I-SGP | imizuzu engama-290 | Inombolo 11 | Ihambelana ne-axis yombhobho | 30 | 30 | 30 | 30 | 30 |
| Inombolo 12 | Ihambelana ne-axis yombhobho | 24 | 26 | 27 | 28 | 30 | ||
| Inombolo 5 | Ithe nkqo kwi-axis yombhobho | 19 | 20 | 22 | 24 | 25 | ||
Kwimibhobho enobubanzi obuyi-32A okanye ngaphantsi, amaxabiso okwandiswa akule theyibhile awasebenzi, nangona iziphumo zovavanyo lokwandiswa kwazo ziya kubhalwa phantsi. Kule meko, imfuneko yokwandiswa okuvunyelwene ngayo phakathi komthengi kunye nomenzi ingasetyenziswa.
Ipropati yokuThabathisa
Ububanzi: Kwimibhobho enobubanzi obuqhelekileyo obungaphezulu kwe-50A (2B).
Akukho ziqhekeko xa ityhubhu ithambekele kwi-2/3 yobubanzi obungaphandle betyhubhu.
Ukugoba
Ububanzi: Kwimibhobho yentsimbi enobubanzi obuqhelekileyo ≤ 50A (2B).
Goba isampuli ukuya kuma-90° nge-radius yangaphakathi ephindwe kathandathu kunobubanzi bangaphandle bombhobho ngaphandle kokwenza naziphi na iintanda.
Umbhobho ngamnye wentsimbi kufuneka ube novavanyo loxinzelelo lwe-hydrostatic okanye uvavanyo olungatshabalalisiyo.
Uvavanyo lwe-Hydrostatic
Uxinzelelo: 2.5 MPa;
Ixesha: Bamba ubuncinane imizuzwana emi-5;
Isigwebo: umbhobho wentsimbi phantsi koxinzelelo ngaphandle kokuvuza.
Uvavanyo olungatshabalalisiyo
Uvavanyo lwe-ultrasonic oluchazwe kwi-JIS G 0582 luya kusebenza. Inqanaba lovavanyo linokuba nzima ngakumbi kuneCandelo le-UE.
Uvavanyo lwe-eddy current oluchazwe kwi-JIS G 0583 luya kusebenza. Inqanaba lovavanyo linokuba nzima ngakumbi kuneCandelo le-EZ.
Kwimibhobho enemithamo eqhelekileyo ≥ 350A (14B), bala ububanzi ngokulinganisa umjikelezo, apho ukunyamezelana ku-± 0.5%.
Uhlobo lwesiphelo sepayipi se-DN≤300A/12B: isiphelo esinemisonto okanye esithe tyaba.
Uhlobo lwesiphelo sepayipi se-DN≤350A/14B: isiphelo esithe tyaba.
Ukuba umthengi ufuna isiphelo esijikelezileyo, i-engile ye-bevel yi-30-35°, ububanzi be-bevel bomphetho wombhobho wentsimbi: ubuninzi yi-2.4mm.
I-JIS G 3452 inee-equivalents kwiI-ASTM A53kwayeGB/T 3091, kwaye izixhobo zombhobho ezichazwe kule migangatho zinokuthathwa njengezilingana ngokwendlela yokusebenza kunye nokusetyenziswa.
Ukususela oko yasekwa ngo-2014, iBotop Steel ibe ngumthengisi ophambili wemibhobho yentsimbi yekhabhoni eMntla China, eyaziwa ngenkonzo egqwesileyo, iimveliso ezikumgangatho ophezulu, kunye nezisombululo ezibanzi.
Le nkampani inikezela ngeendidi ngeendidi zeepayipi zentsimbi yekhabhoni kunye neemveliso ezinxulumene nazo, kuquka ipayipi yentsimbi engenamthungo, i-ERW, i-LSAW, kunye ne-SSAW, kunye noluhlu olupheleleyo lwee-fittings zepayipi kunye nee-flanges. Iimveliso zayo ezikhethekileyo ziquka ii-alloys ezikumgangatho ophezulu kunye neentsimbi ezingenasici ze-austenitic, ezenzelwe ukuhlangabezana neemfuno zeeprojekthi ezahlukeneyo zepayipi.
Qhagamshelana nathi, iqela leengcali likulungele ukukunika iinkonzo ezisemgangathweni kunye nezisombululo, lijonge phambili ekufikeleleni kwintsebenziswano entle nawe, kunye nokuvula isahluko esitsha sempumelelo kunye.
