JIS G 3444: Machubu achitsulo a Carbon amapangidwe wamba.
Imatchula zofunikira zamapaipi achitsulo omwe amagwiritsidwa ntchito popanga zomangamanga ndi zomangamanga, monga nsanja zachitsulo, scaffolding, milu ya maziko, milu ya maziko, ndi milu yoletsa kuterera.
Mtengo wa STK400Chitoliro chachitsulo ndi chimodzi mwazofala kwambiri, chokhala ndi zida zamakina amphamvu yocheperako ya 400 MPandi amphamvu zochepa zokolola za 235 MPa. Mphamvu zake zamapangidwe komanso kulimba kwakeipange kukhala yoyenera pamapulogalamu ambiri osiyanasiyana.
Malinga ndi mphamvu yocheperako ya chitoliro chachitsulo imagawidwa m'magulu 5, omwe ndi:
STK 290, STK 400, STK 490, STK 500, STK 540.
Cholinga chachikulu M'mimba mwake: 21.7-1016.0mm;
Milu ya maziko ndi milu ya kuponderezana kwa nthaka OD: pansi pa 318.5mm.
| Chizindikiro cha kalasi | Chizindikiro cha kupanga | |
| Njira yopanga mapaipi | Njira yomaliza | |
| Mtengo wa STK290 | Zopanda malire: S Kukana kwamagetsi welded: E Zida zowotcherera: B Arc wowotcherera: A | Zomaliza: H Zomaliza: C Momwe kukana kwamagetsi kumawotcherera: G |
| Mtengo wa STK400 | ||
| Mtengo wa STK490 | ||
| Mtengo wa STK500 | ||
| Mtengo wa STK540 | ||
Machubu adzapangidwa ndi kuphatikiza njira yopangira chubu ndi njira yomaliza yomwe ikuwonetsedwa.
Makamaka, amatha kugawidwa m'magulu asanu ndi awiri otsatirawa, choncho sankhani mtundu woyenera malinga ndi zosowa zosiyanasiyana:
1) Chubu chachitsulo chosasunthika chotentha: -SH
2) Chitsulo chozizira chomaliza chopanda msoko: -SC
3) Monga magetsi kukana welded zitsulo chubu: -EG
4) Kutentha komaliza kwamagetsi kukana welded steel chubu: -EH
5) Kuzizira komaliza kwamagetsi kukana welded zitsulo chubu: -EC
6) Machubu achitsulo opangidwa ndi matako: -B
7) Machubu achitsulo opangidwa ndi arc: -A
Machubu achitsulo opangidwa ndi arc amaphatikiza njira yowotcherera ya SAW.
SAW ikhoza kugawidwa muMtengo wa LSAW(SAWL) ndi SSAW (Mtengo wa HSAW).
Chotsatira ndi tchati chotsatira cha kupanga chitoliro chachitsulo cha SSAW:
| Chemical Compositiona% | |||||
| Chizindikiro cha kalasi | C (Kaboni) | Si (Silicon) | Mn (Manganese) | Phosphorous (P) | S (Sulphur) |
| max | max | max | max | ||
| Mtengo wa STK400 | 0.25 | - | - | 0.040 | 0.040 |
| aZinthu za aloyi zomwe sizinaphatikizidwe mu tebulo ili ndi zinthu zowonetsedwa ndi "-" zitha kuwonjezeredwa ngati pakufunika. | |||||
Mtengo wa STK400ndi chitsulo chochepa cha carbon chomwe chimawotcherera bwino komanso chimagwira ntchito bwino pamapangidwe omwe amafunikira kuwotcherera.Phosphorus ndi sulfure zimayendetsedwa pamilingo yotsika kuti zithandizire kukhalabe olimba komanso kugwira ntchito kwazinthuzo.Ngakhale mfundo zenizeni za silicon ndi manganese sizinaperekedwe, zikhoza kusinthidwa mkati mwa malire ovomerezeka kuti ziwongolere zitsulo zachitsulo.
Kulimbitsa Mphamvu ndi Kutulutsa Malo kapena Kupanikizika Kwaumboni
Kulimba kwamphamvu kwa weld kumagwiritsidwa ntchito pamachubu odziyimira pawokha.Ndi njira yowotcherera ya SAW.
| Chizindikiro cha kalasi | Kulimba kwamakokedwe | Mfundo yokolola kapena kutsindika kwa umboni | Mphamvu yamphamvu mu weld |
| N/mm² (MPA) | N/mm² (MPA) | N/mm² (MPA) | |
| min | min | min | |
| Mtengo wa STK400 | 400 | 235 | 400 |
Kukula kwa JIS G 3444
Kutalikitsa kolingana ndi njira yopangira machubu kukuwonetsedwa mu Gulu 4.
Komabe, pamene kuyesa kwamphamvu kumachitidwa pa Test Piece No. 12 kapena Test Piece No.5 yotengedwa mu chubu pansi pa 8 mm mu makulidwe a khoma, kutalika kwake kudzakhala molingana ndi Table 5.
Pa kutentha kwapakati (5 ° C mpaka 35 ° C), ikani chitsanzo pakati pa mbale ziwiri zophwanyika ndikusindikiza mwamphamvu kuti muwaphwanye mpaka mtunda wa H ≤ 2/3D pakati pa mbale, kenako fufuzani ming'alu ya chitsanzocho.
Pa kutentha kwa firiji (5 °C mpaka 35 °C), pindani chitsanzocho mozungulira silinda pakona yopindika pang'ono ya 90° ndi utali wokwanira wamkati wosapitirira 6D ndikuyang'ana chitsanzo cha ming'alu.
Mayeso a Hydrostatic, mayeso osawononga ma welds, kapena mayeso ena amavomerezedwa pasadakhale pazofunikira.
Kulekerera Kwa Diameter Kunja
Kulekerera kwa Wall Makulidwe
Kulekerera Kwautali
Utali ≥ utali wotchulidwa
Mawonekedwe amkati ndi akunja a chitoliro chachitsulo adzakhala osalala komanso opanda zilema zosayenera kugwiritsa ntchito.
Chitoliro chilichonse chachitsulo chidzalembedwa ndi mfundo zotsatirazi.
a)Chizindikiro cha kalasi.
b)Chizindikiro cha njira yopangira.
c)Makulidwe.Kunja kwake ndi makulidwe a khoma ziyenera kulembedwa.
d)Dzina la wopanga kapena chidule chake.
Kuyika chizindikiro pa chubu kukakhala kovuta chifukwa m'mimba mwake kunja kuli kochepa kapena ngati wapempha wogula, chizindikirocho chikhoza kuperekedwa pa mtolo uliwonse wa machubu m'njira yoyenera.
Zovala zotsutsana ndi dzimbiri monga zokutira zokhala ndi zinc, zokutira za epoxy, zopaka utoto, etc. zitha kugwiritsidwa ntchito panja kapena mkati.
STK 400 imapereka mphamvu zabwino komanso zachuma, zomwe zimapangitsa kuti zikhale zoyenera pama projekiti ambiri a uinjiniya ndi zomangamanga.
Machubu achitsulo a STK 400 amagwiritsidwa ntchito kwambiri pantchito yomanga ndipo ndi oyenera kugwiritsidwa ntchito ngati zomangira monga mizati, mizati, kapena mafelemu m'nyumba zamalonda ndi zogona.
Ndiwoyeneranso milatho, zomangira zothandizira, ndi ntchito zina zomwe zimafuna mphamvu zapakatikati komanso kulimba.
Itha kugwiritsidwanso ntchito pomanga njanji zamsewu, mafelemu azizindikiro zamagalimoto, ndi malo ena aboma.
Popanga, STK 400 itha kugwiritsidwa ntchito kupanga mafelemu ndi zida zothandizira makina ndi zida chifukwa cha mphamvu yake yabwino yonyamula katundu komanso magwiridwe antchito.
Chonde dziwani kuti ngakhale kuti miyeso iyi ndi yofanana pakugwiritsa ntchito ndi kachitidwe, pangakhale kusiyana pang'ono pamakina enaake amankhwala ndi zinthu zina zamakina.
Polowetsa zipangizo, zofunikira zenizeni za miyezo ziyenera kufananizidwa mwatsatanetsatane kuti zitsimikizidwe kuti zipangizo zomwe zasankhidwa zidzakwaniritsa zofunikira zaumisiri ndi chitetezo cha polojekitiyi.
Chiyambireni kukhazikitsidwa mu 2014, Botop Steel yakhala ikugulitsa chitoliro chachitsulo cha carbon ku Northern China, chomwe chimadziwika ndi ntchito zabwino kwambiri, zinthu zamtengo wapatali, komanso zothetsera mavuto.
Kampaniyi imapereka mapaipi osiyanasiyana a zitsulo za carbon ndi zinthu zomwe zimagwirizana nazo, kuphatikizapo zopanda msoko, ERW, LSAW, ndi chitoliro chachitsulo cha SSAW, komanso mzere wathunthu wazitsulo ndi flanges.
Zopangira zake zapadera zimaphatikizanso ma alloys apamwamba kwambiri ndi zitsulo zosapanga dzimbiri za austenitic, zopangidwa kuti zikwaniritse zofunikira zama projekiti osiyanasiyana a mapaipi.
