I-JIS G 3444: Amashubhu ensimbi yekhabhoni esakhiwo esijwayelekile.
Icacisa izidingo zamapayipi ensimbi yekhabhoni asetshenziswa kobunjiniyela bezokwakha kanye nokwakha, njengemibhoshongo yensimbi, izikafula, izinqwaba zesisekelo, izinqwaba zesisekelo, kanye nezinqwaba ezivimbela ukushelela.
I-STK 400ipayipi lensimbi lingenye yezinhlobo ezivame kakhulu, elinezakhiwo zemishini zeamandla okudonsa amancane angu-400 MPakanyeamandla okukhiqiza okungenani angu-235 MPa. Amandla ayo amahle okwakheka nokuqina kwayokwenze kufaneleke ezinhlelweni eziningi ezahlukene.
Ngokusho kwamandla amancane okucindezela, ipayipi lensimbi lihlukaniswe ngezigaba ezi-5, okuyilezi:
I-STK 290, STK 400, STK 490, STK 500, STK 540.
Inhloso ejwayelekile Ububanzi bangaphandle: 21.7-1016.0mm;
Izinqwaba zesisekelo kanye nezinqwaba zokunciphisa ukudilika komhlabathi OD: ngaphansi kuka-318.5mm.
| Uphawu lwebanga | Uphawu lwenqubo yokukhiqiza | |
| Inqubo yokukhiqiza amapayipi | Indlela yokuqeda | |
| I-STK 290 | Akunamthungo: S Ukumelana kukagesi okuhlanganisiwe: E I-Butt ehlanganisiwe: B I-arc ezenzakalelayo ishidiwe: A | Okuqediwe ngokushisa: H Kuqediwe ngokubandayo: C Njengoba ukumelana kukagesi kuhlanganisiwe: G |
| I-STK 400 | ||
| I-STK 490 | ||
| I-STK 500 | ||
| I-STK 540 | ||
Amapayipi kufanele akhiqizwe ngokuhlanganiswa kwendlela yokukhiqiza amapayipi kanye nendlela yokuqeda ekhonjisiwe.
Ngokuqondile, zingahlukaniswa ngezinhlobo eziyisikhombisa ezilandelayo, ngakho khetha uhlobo olufanele ngokwezidingo ezahlukene:
1) Ishubhu yensimbi engenamthungo eqediwe ngokushisa: -SH
2) Ishubhu yensimbi engenamthungo eqediwe ngokubandayo: -SC
3) Njengoba ukumelana kukagesi kuhlanganisiwe ipayipi lensimbi: -EG
4) Ishubhu yensimbi ehlanganisiwe yokumelana kagesi eqediwe ngokushisa: -EH
5) Ishubhu yensimbi ehlanganisiwe yokumelana nogesi eqediwe ngokubandayo: -EC
6) Amapayipi ensimbi ashiselwe ngezinqe: -B
7) Amashubhu ensimbi ahlanganisiwe ngokuzenzakalelayo: -A
| Ukwakheka Kwamakhemikhalia% | |||||
| Uphawu lwebanga | C (Ikhabhoni) | I-Si (i-Silicon) | I-Mn (i-Manganese) | I-P (i-Phosphorus) | S (Isibabule) |
| ubuningi | ubuningi | ubuningi | ubuningi | ||
| I-STK 400 | 0.25 | — | — | 0.040 | 0.040 |
| aIzinto ze-alloy ezingafakwanga kuleli thebula kanye nezinto eziboniswe ngo-“—” zingangezwa uma kudingeka. | |||||
I-STK 400iyinsimbi ephansi yekhabhoni enokushibilika okuhle kanye nokusebenza kahle kwezicelo zesakhiwo ezidinga ukushibilika. I-phosphorus kanye nesulfure kulawulwa emazingeni aphansi ukusiza ukugcina ukuqina kanye nokusebenza kahle kwezinto. Nakuba amanani athile e-silicon kanye ne-manganese enganikezwanga, angalungiswa ngaphakathi kwemingcele evumelekile ukuze kuthuthukiswe izakhiwo zensimbi.
Amandla Okuqina kanye Nokucindezeleka Kokugoba Noma Ubufakazi
Amandla okunamathela kwe-weld asebenza kumashubhu ahlanganisiwe e-arc ngokuzenzakalelayo. Yinqubo yokushisela ye-SAW.
| Uphawu lwebanga | Amandla okudonsa | Iphuzu lokukhiqiza noma ukucindezeleka kobufakazi | Amandla okunamathela ekushiseni |
| I-N/mm² (i-MPA) | I-N/mm² (i-MPA) | I-N/mm² (i-MPA) | |
| umzuzu | umzuzu | umzuzu | |
| I-STK 400 | 400 | 235 | 400 |
Ukwandiswa kwe-JIS G 3444
Ukwelulwa okuhambisana nendlela yokukhiqiza ishubhu kuboniswe kuThebula 4.
Kodwa-ke, lapho ukuhlolwa kokudonsa kwenziwa ku-Test Piece No. 12 noma ku-Test Piece No. 5 ethathwe epayipini elingaphansi kuka-8 mm ubukhulu bodonga, ukunwebeka kufanele kuhambisane neThebula 5.
Ezingeni lokushisa legumbi (5 °C kuya ku-35 °C), beka isampula phakathi kwamapuleti amabili ayisicaba bese ucindezela ngokuqinile ukuze uwasibekele kude kube yibanga elingu-H ≤ 2/3D phakathi kwamapuleti, bese uhlola imifantu kusampula.
Ezingeni lokushisa legumbi (5 °C kuya ku-35 °C), gobisa isampula uzungeze isilinda nge-engeli yokugoba okungenani engu-90° kanye nerediyasi yangaphakathi ephezulu engengaphezu kuka-6D bese uhlola isampula ukuthi ayinamifantu yini.
Ukuhlolwa kwe-hydrostatic, ukuhlolwa okungabhubhisi kwama-welds, noma okunye ukuhlolwa kuzovunyelwana kusengaphambili ngezidingo ezifanele.
Ukubekezelelana Kwangaphandle Kobubanzi
Ukubekezelela Ubukhulu Bodonga
Ukubekezelela Ubude
Ubude ≥ ubude obucacisiwe
Izindawo zangaphakathi nezangaphandle zepayipi lensimbi kumele zibe bushelelezi futhi zingabi namaphutha angafaneleki.
Ipayipi ngalinye lensimbi kufanele libhalwe ulwazi olulandelayo.
a)Uphawu lwebanga.
b)Uphawu lwendlela yokukhiqiza.
c)Ubukhulu.Ububanzi bangaphandle kanye nobukhulu bodonga kumele kuphawulwe.
d)Igama noma isifinyezo somkhiqizi.
Uma ukumaka epayipini kunzima ngoba ububanzi balo bangaphandle buncane noma uma umthengi ecela kanjalo, ukumaka kunganikezwa kuqoqo ngalinye lamapayipi ngendlela efanele.
Izembozo ezilwa nokugqwala ezifana nezembozo ezicebile nge-zinc, izembozo ze-epoxy, izembozo zopende, njll. zingasetshenziswa ezindaweni zangaphandle noma zangaphakathi.
I-STK 400 inikeza ibhalansi enhle yamandla kanye nokonga, okwenza ifaneleke kakhulu kumaphrojekthi amaningi obunjiniyela kanye nokwakha.
Amashubhu ensimbi e-STK 400 avame ukusetshenziswa embonini yokwakha futhi afaneleka kakhulu ukusetshenziswa njengezakhi zesakhiwo njengezinsika, imishayo, noma ozimele ezakhiweni zezentengiselwano nezindawo zokuhlala.
Ifaneleka futhi kumabhuloho, izakhiwo zokusekela, kanye neminye imisebenzi edinga amandla aphakathi nokuqina.
Ingasetshenziswa futhi ukwakha izivikelo zomgwaqo, ozimele bezimpawu zomgwaqo, kanye nezinye izikhungo zomphakathi.
Ekukhiqizeni, i-STK 400 ingasetshenziswa ukukhiqiza ozimele kanye nezakhiwo zokusekela imishini nemishini ngenxa yamandla ayo okuthwala umthwalo kanye nokusebenza kahle.
Sicela uqaphele ukuthi yize lezi zindinganiso zifana ngokusetshenziswa kanye nokusebenza, kungase kube nomehluko omncane ekwakhiweni kwamakhemikhali athile kanye nemingcele ethile yezakhiwo zemishini.
Uma kufakwa izinto esikhundleni sazo, izidingo ezithile zezindinganiso kufanele ziqhathaniswe ngokuningiliziwe ukuqinisekisa ukuthi izinto ezikhethiwe zizohlangabezana nezindinganiso ezithile zobuchwepheshe nezokuphepha zephrojekthi.
Kusukela yasungulwa ngo-2014, iBotop Steel isibe ngumhlinzeki ohamba phambili wamapayipi ensimbi yekhabhoni eNyakatho yeShayina, eyaziwa ngenkonzo enhle kakhulu, imikhiqizo esezingeni eliphezulu, kanye nezixazululo eziphelele.
Le nkampani inikeza izinhlobo ezahlukene zamapayipi ensimbi yekhabhoni kanye nemikhiqizo ehlobene nawo, okuhlanganisa ipayipi lensimbi elingenamthungo, i-ERW, i-LSAW, kanye ne-SSAW, kanye nohlu oluphelele lwezihlanganisi zamapayipi nama-flange.
Imikhiqizo yayo ekhethekile ihlanganisa nezinsimbi ezixubile zezinga eliphezulu kanye nezinsimbi ezingagqwali ezenziwe nge-austenitic, ezenzelwe ukuhlangabezana nezidingo zamaphrojekthi ahlukahlukene epayipi.
