Chitoliro chachitsulo cha ERW
Chitoliro cha ERW (chitoliro cholumikizidwa ndi magetsi) ndi chitoliro cha CDW (chitoliro cholumikizidwa chozizira) ndi njira ziwiri zosiyana zopangira mapaipi achitsulo olumikizidwa.
1. Njira yopangira
| Zinthu zoyerekeza | Chitoliro cha ERW (chitoliro cholumikizidwa ndi kukana kwamagetsi) | Chitoliro cha CDW (chitoliro cholumikizidwa chozizira) |
| Dzina lonse | Chitoliro Choponderezedwa ndi Magetsi | Chitoliro Chopangidwa ndi Cold Mafanizo |
| Njira yopangira | Mphepete mwa mbale yachitsulo imatenthedwa ndi mphamvu yamagetsi yamagetsi yapamwamba ndipo imapanikizika ndikuwongoleredwa kuti ikhale yofanana. | Choyamba amalungidwa m'mapaipi, kenako amakokedwa m'madzi ozizira (mankhwala ochizira kuzizira) |
| Njira yowotcherera | Kuwotcherera Kosasinthasintha Kwambiri (HFW/ERW) | ERW kapena argon arc welding (TIG) nthawi zambiri imagwiritsidwa ntchito poweda |
| Kukonza kotsatira | Kudula ndi kugawa molunjika pambuyo powotcherera | Kumaliza kujambula kozizira (kugubuduza kozizira) pambuyo powotcherera |
2. Makhalidwe a ntchito
Chitoliro cha ERW
Kulondola kwa miyeso: Zonse (± 0.5% ~ 1% kulolerana kwa m'mimba mwake wakunja)
Ubwino wa pamwamba: Cholumikiziracho chikuwoneka bwino pang'ono ndipo chikufunika kupukutidwa
Kapangidwe ka makina: Mphamvu zimadalira zinthu zomwe zili mkati mwake, ndipo pakhoza kukhala kufewa m'dera la weld
Kupsinjika kotsalira: Kochepa (kutentha kokha pambuyo powotcherera)
Chitoliro cha CDW
Kulondola kwa miyeso: kwakukulu kwambiri (mkati mwa ± 0.1mm, koyenera kulondola)
Ubwino wa pamwamba: pamwamba posalala, palibe sikelo ya okusayidi (yopukutidwa pambuyo pojambula kozizira)
Kapangidwe ka makina: kuuma kogwira ntchito kozizira, mphamvu idakwera ndi 20% ~ 30%
Kupsinjika kotsalira: kokwera (kufunikira kupopera kuti kuthetse kupsinjika kozizira)
3. Zochitika zogwiritsira ntchito
ERW: mapaipi amafuta/gasi, mapaipi omangira nyumba (scaffolding), mapaipi amadzimadzi otsika mphamvu (GB/T 3091)
CDW: masilinda a hydraulic, zida zolondola zamakina (monga manja onyamula katundu), ma shaft otumizira magalimoto (malo omwe ali ndi zofunikira zolondola kwambiri)
Miyezo yodziwika bwino ya mitundu
ERW: API 5L (chitoliro cha payipi), ASTM A53 (chitoliro chomangira), EN 10219 (chitoliro chomangiriridwa cha European standard)
CDW: ASTM A519 (chitoliro chokokedwa bwino chozizira), DIN 2391 (chitoliro chodziwika bwino cha ku Germany cholondola kwambiri)
Chitoliro cha CDW = chitoliro cha ERW + chojambula chozizira, chokhala ndi miyeso yolondola komanso mphamvu zambiri, komanso mtengo wake ndi wokwera.
Chitoliro cha ERW ndi choyenera kugwiritsidwa ntchito popanga zinthu zambiri, pomwe chitoliro cha CDW chimagwiritsidwa ntchito popanga makina olondola kwambiri.
Ngati ntchito ya chitoliro cha CDW ikufunika kukonzedwanso, chithandizo cha annealing chingawonjezedwe (kuti muchepetse kupsinjika kwa ntchito yozizira).
Nthawi yotumizira: Epulo-01-2025
