JIS G 3444: Machubu achitsulo cha kaboni cha kapangidwe kake.
Imafotokoza zofunikira pa mapaipi achitsulo cha kaboni omwe amagwiritsidwa ntchito muuinjiniya ndi zomangamanga, monga nsanja zachitsulo, ma scaffolding, ma foundation piles, ma foundation piles, ndi ma piles oletsa kutsetsereka.
STK 400Chitoliro chachitsulo ndi chimodzi mwa zinthu zodziwika bwino, chokhala ndi mphamvu zamakinamphamvu yocheperako yokoka ya 400 MPandimphamvu yocheperako yopezera phindu ya 235 MPa. Mphamvu yake yabwino komanso kulimba kwakePangani kuti ikhale yoyenera kugwiritsa ntchito mitundu yosiyanasiyana.
Malinga ndi mphamvu yochepa ya chitoliro chachitsulo, chitolirocho chimagawidwa m'magulu 5, omwe ndi:
STK 290, STK 400, STK 490, STK 500, STK 540.
Cholinga Chachikulu: M'mimba mwake wakunja: 21.7-1016.0mm;
Milu ya maziko ndi milu yochepetsera kugwa kwa nthaka OD: pansi pa 318.5mm.
| Chizindikiro cha giredi | Chizindikiro cha njira yopangira | |
| Njira yopangira mapaipi | Njira yomaliza | |
| STK 290 | Wopanda msoko: S Kukana kwamagetsi kolumikizidwa: E Cholukidwa matako: B Cholumikizira chozungulira chokha: A | Yomalizidwa ndi Kutentha: H Yomalizidwa ndi ozizira: C Monga kukana kwamagetsi kolumikizidwa: G |
| STK 400 | ||
| STK 490 | ||
| STK 500 | ||
| STK 540 | ||
Machubu ayenera kupangidwa pogwiritsa ntchito njira yopangira machubu ndi njira yomaliza yomwe yasonyezedwa.
Makamaka, zitha kugawidwa m'magulu asanu ndi awiri otsatirawa, choncho sankhani mtundu woyenera malinga ndi zosowa zosiyanasiyana:
1) Chitsulo chachitsulo chopanda msoko chotenthedwa: -SH
2) Chitsulo chopanda msoko chozizira chomalizidwa ndi chitsulo: -SC
3) Monga kukana kwamagetsi, chubu chachitsulo chosungunulidwa: -EG
4) Chitoliro chachitsulo chotenthetsera chamagetsi cholimba cholimba: -EH
5) Chitoliro chachitsulo cholumikizidwa ndi kukana kwamagetsi kozizira: -EC
6) Machubu achitsulo opangidwa ndi matako: -B
7) Machubu achitsulo olumikizidwa ndi arc okha: -A
| Kapangidwe ka Mankhwalaa% | |||||
| Chizindikiro cha giredi | C (Kaboni) | Si (Silikoni) | Mn (Manganese) | P (Phosphorus) | S (Sulfure) |
| kuchuluka | kuchuluka | kuchuluka | kuchuluka | ||
| STK 400 | 0.25 | — | — | 0.040 | 0.040 |
| aZinthu za aloyi zomwe sizinaphatikizidwe mu tebulo ili ndi zinthu zomwe zalembedwa ndi "—" zitha kuwonjezeredwa ngati pakufunika. | |||||
STK 400Ndi chitsulo chopanda mpweya woipa chomwe chimatha kusungunula bwino komanso chogwira ntchito bwino popanga zinthu zomwe zimafuna kusungunula. Phosphorus ndi sulfure zimayendetsedwa pamlingo wotsika kuti zithandize kukhala zolimba komanso zogwira ntchito bwino. Ngakhale kuti silicon ndi manganese siziperekedwa, zitha kusinthidwa mkati mwa malire ovomerezeka kuti ziwonjezere mphamvu za chitsulocho.
Mphamvu Yolimba ndi Kupsinjika kwa Mphamvu Yopereka Mphamvu kapena Umboni
Mphamvu yokoka ya weld imagwira ntchito pa machubu opangidwa ndi arc okha. Ndi njira yogwiritsira ntchito SAW weld.
| Chizindikiro cha giredi | Kulimba kwamakokedwe | Kupsinjika kwa mfundo kapena umboni | Mphamvu yokoka mu weld |
| N/mm² (MPA) | N/mm² (MPA) | N/mm² (MPA) | |
| mphindi | mphindi | mphindi | |
| STK 400 | 400 | 235 | 400 |
Kutalikitsa kwa JIS G 3444
Kutalika kofanana ndi njira yopangira machubu kukuwonetsedwa mu Table 4.
Komabe, pamene mayeso omangika achitika pa Chidutswa Choyesera Nambala 12 kapena Chidutswa Choyesera Nambala 5 chotengedwa kuchokera mu chubu chosakwana 8 mm mu makulidwe a khoma, kutalika kuyenera kutsagana ndi Table 5.
Pa kutentha kwa chipinda (5 °C mpaka 35 °C), ikani chitsanzocho pakati pa mbale ziwiri zathyathyathya ndikukanikiza mwamphamvu kuti ziphwanyike mpaka mtunda wa H ≤ 2/3D pakati pa mbalezo, kenako yang'anani ming'alu mu chitsanzocho.
Pa kutentha kwa chipinda (5 °C mpaka 35 °C), pindani chitsanzocho mozungulira silinda pa ngodya yopindika ya 90° ndi radius yayikulu yamkati yosapitirira 6D ndipo yang'anani chitsanzocho ngati chili ndi ming'alu.
Mayeso a hydrostatic, mayeso osawononga a ma welds, kapena mayeso ena ayenera kuvomerezedwa pasadakhale pazofunikira zoyenera.
Kulekerera kwa M'mimba mwake wa Kunja
Kulekerera kwa Makulidwe a Khoma
Kulekerera Kutalika
Kutalika ≥ kutalika kotchulidwa
Malo amkati ndi akunja a chitoliro chachitsulo ayenera kukhala osalala komanso opanda zilema zomwe sizingakhudze magetsi.
Chitoliro chilichonse chachitsulo chiyenera kukhala ndi zilembo zotsatirazi.
a)Chizindikiro cha kalasi.
b)Chizindikiro cha njira yopangira.
c)Miyeso.Chipinda chakunja ndi makulidwe a khoma ziyenera kulembedwa.
d)Dzina la wopanga kapena chidule chake.
Ngati chizindikiro pa chubu chili chovuta chifukwa kukula kwake kwakunja ndi kochepa kapena ngati wogula apempha, chizindikirocho chikhoza kuperekedwa pa phukusi lililonse la chubu mwanjira yoyenera.
Zophimba zoteteza dzimbiri monga zophimba zokhala ndi zinc yambiri, zophimba za epoxy, zophimba utoto, ndi zina zotero zingagwiritsidwe ntchito pamwamba pakunja kapena mkati.
STK 400 imapereka mphamvu zokwanira komanso ndalama zochepa, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pa ntchito zambiri zauinjiniya ndi zomangamanga.
Machubu achitsulo a STK 400 amagwiritsidwa ntchito kwambiri mumakampani omanga ndipo ndi oyenera kugwiritsidwa ntchito ngati zinthu zomangira monga zipilala, matabwa, kapena mafelemu m'nyumba zamalonda ndi zogona.
Ndi yoyeneranso milatho, nyumba zothandizira, ndi mapulojekiti ena omwe amafunikira mphamvu yapakati komanso kulimba.
Ingagwiritsidwenso ntchito popanga zotchingira misewu, mafelemu a zizindikiro zamagalimoto, ndi malo ena opezeka anthu onse.
Pakupanga, STK 400 ingagwiritsidwe ntchito kupanga mafelemu ndi zomangamanga zothandizira makina ndi zida chifukwa cha mphamvu yake yabwino yonyamula katundu komanso kugwirira ntchito.
Dziwani kuti ngakhale miyezo iyi ndi yofanana pakugwiritsa ntchito ndi magwiridwe antchito, pakhoza kukhala kusiyana pang'ono pa kapangidwe ka mankhwala ndi magawo ena a mphamvu ya makina.
Posintha zinthu, zofunikira zenizeni za miyezo ziyenera kuyerekezeredwa mwatsatanetsatane kuti zitsimikizire kuti zipangizo zomwe zasankhidwa zikwaniritse miyezo yeniyeni yaukadaulo ndi chitetezo cha polojekitiyi.
Kuyambira pomwe idakhazikitsidwa mu 2014, Botop Steel yakhala kampani yotsogola yogulitsa mapaipi achitsulo cha kaboni kumpoto kwa China, yodziwika bwino chifukwa cha ntchito zabwino kwambiri, zinthu zapamwamba, komanso mayankho omveka bwino.
Kampaniyo imapereka mapaipi osiyanasiyana achitsulo cha kaboni ndi zinthu zina zokhudzana nazo, kuphatikizapo mapaipi achitsulo opanda msoko, ERW, LSAW, ndi SSAW, komanso mndandanda wathunthu wa zolumikizira mapaipi ndi ma flange.
Zogulitsa zake zapadera zimaphatikizaponso zitsulo zapamwamba kwambiri komanso zitsulo zosapanga dzimbiri zopangidwa ndi austenitic, zopangidwa kuti zikwaniritse zosowa za mapulojekiti osiyanasiyana a mapaipi.
