Malinga ndi njira yopangira, mapaipi achitsulo amatha kugawidwa m'magulu awiri: mapaipi achitsulo osasemphana ndi mapaipi achitsulo olumikizidwa. Pakati pawo, mapaipi achitsulo a ERW ndiye mtundu waukulu wa mapaipi achitsulo olumikizidwa. Masiku ano, makamaka tikulankhula za mitundu iwiri ya mapaipi achitsulo omwe amagwiritsidwa ntchito ngati zida zopangira chivundikiro: mapaipi osasemphana ndi mapaipi olumikizira a ERW.
Chitoliro chopanda msoko - chitoliro chopangidwa ndi chitoliro chachitsulo chopanda msoko; Chitoliro chopanda msoko chimatanthauza chitoliro chachitsulo chopangidwa ndi njira zinayi zotenthetsera, kuzizira, kukoka kotentha ndi kukoka kozizira. Thupi la chitoliro lokha lilibe ma weld.
Chitoliro chachitsulo cha ERW (Electric Resistant Weld) chopangidwa ndi chitoliro chamagetsi cholumikizidwa chimatanthauza chitoliro cholumikizidwa cha msoko wautali chopangidwa ndi kuwotcherera kwamphamvu kwambiri. Mapepala achitsulo osaphika (ma coil) a mapaipi olumikizidwa ndi magetsi amapangidwa kuchokera ku chitsulo cha micro-alloy chotsika mpweya chomwe chimakulungidwa ndi TMCP (njira yolamulidwa ndi thermomechanical).
1. Chitoliro chachitsulo chosasunthika cha OD: pogwiritsa ntchito njira yopangira yotenthedwa, kukula kwake kumatsirizidwa pafupifupi 8000°C. Kapangidwe ka zinthu zopangira, momwe zimaziziritsira, komanso momwe mpukutuwo umaziziritsira zimakhudza kwambiri mainchesi ake akunja, kotero zimakhala zovuta kuwongolera molondola mainchesi akunja, ndipo kuchuluka kwa kusinthasintha ndi kwakukulu. Chitoliro chachitsulo cha ERW: chimapangidwa ndi kupindika kozizira, ndipo mainchesi ake amachepetsedwa ndi 0.6%. Kutentha kwa ndondomekoyi kumakhala kokhazikika kutentha kwa chipinda, kotero mainchesi akunja amawongoleredwa molondola, ndipo kuchuluka kwa kusinthasintha ndi kochepa, zomwe zimathandiza kuchotsa ma buckle akuda a chikopa;
2. Chitoliro chachitsulo chopanda msoko chokhala ndi makulidwe a khoma: Chimapangidwa ndi kuboola chitsulo chozungulira, ndipo kusiyana kwa makulidwe a khoma ndi kwakukulu. Kugubuduza kotentha kotsatira kumatha kuchotsa pang'ono kusagwirizana kwa makulidwe a khoma, koma makina amakono kwambiri amatha kungowongolera mkati mwa ±5~10%t. Chitoliro chachitsulo cha ERW: Mukagwiritsa ntchito chozungulira chotentha ngati zinthu zopangira, kulekerera makulidwe a kugubuduza kotentha kwamakono kumatha kulamulidwa mkati mwa 0.05mm.
3. Zolakwika zomwe zili pamwamba pa workpiece zomwe zimagwiritsidwa ntchito pooneka ngati chitoliro chachitsulo chosasunthika sizingachotsedwe panthawi yotenthetsera, koma zimatha kupukutidwa pokhapokha ngati chinthu chomalizidwa chatha, kukwapula kwa helical komwe kumatsala pambuyo pobowola kumatha kuchotsedwa pang'ono pokhapokha ngati makoma achepetsedwa. Chitoliro chachitsulo cha ERW chimapangidwa ndi chopondera chotentha ngati zinthu zopangira. Ubwino wa pamwamba pa chopondera ndi wofanana ndi ubwino wa pamwamba pa chitoliro chachitsulo cha ERW. Ubwino wa pamwamba pa chopondera chotentha ndi wosavuta kuwongolera ndipo ndi wapamwamba kwambiri. Chifukwa chake, ubwino wa pamwamba pa chitoliro chachitsulo cha ERW ndi wabwino kwambiri kuposa wa chitoliro chachitsulo chosasunthika.
4. Chitoliro chachitsulo chozungulira chopanda msoko: pogwiritsa ntchito njira yotenthetsera. Kapangidwe ka zinthu zopangira chitoliro chachitsulo, momwe chimaziziritsira komanso momwe chimaziziritsira zimakhudzira kwambiri mainchesi ake akunja, kotero zimakhala zovuta kuwongolera molondola mainchesi akunja, ndipo kusinthasintha kwake ndi kwakukulu. Chitoliro chachitsulo cha ERW: chopangidwa ndi kupindika kozizira, mainchesi akunja amawongoleredwa bwino, ndipo kusinthasintha kwake ndi kochepa.
5. Kuyesa kwa Kugwira Ntchito Mphamvu zogwira ntchito za chitoliro chachitsulo chosasunthika ndi chitoliro chachitsulo cha ERW zimagwirizana ndi miyezo ya API, koma mphamvu ya chitoliro chachitsulo chosasunthika nthawi zambiri imakhala pamwamba, ndipo kusinthasintha kwake kumakhala pansi. M'malo mwake, mphamvu ya chitoliro chachitsulo cha ERW ili bwino kwambiri, ndipo chizindikiro cha pulasitiki ndi 33.3% kuposa muyezo. Chifukwa chake ndi chakuti monga zopangira za chitoliro chachitsulo cha ERW, magwiridwe antchito a chokolera chotentha amatsimikiziridwa ndi kusungunula kwa micro-alloy, kuyeretsa kunja kwa ng'anjo, ndi kuziziritsa ndi kuzunguliza kolamulidwa; pulasitiki. Mwangozi.
6. Zipangizo zopangira chitoliro chachitsulo cha ERW ndi chopopera chotentha, chomwe chili ndi kulondola kwakukulu pakugubuduza, zomwe zingatsimikizire magwiridwe antchito ofanana a gawo lililonse la chopopera.
7. Zipangizo zopangira za chitoliro cha ERW chopangidwa ndi chitsulo chotentha chozungulira chokhala ndi kukula kwa tirigu zimagwiritsa ntchito billet yotakata komanso yokhuthala yopitilira, pamwamba pake pali tinthu tating'onoting'ono tolimba, palibe malo okhala ndi makristalo a columnar, pores ndi pores, kupotoka kwa kapangidwe kake ndi kochepa. , ndipo kapangidwe kake ndi kakang'ono; kuwongolera mu ndondomeko yotsatira yozungulira Kugwiritsa ntchito ukadaulo wozungulira wozizira kumawonjezeranso kutsimikizira kukula kwa tirigu wa zinthu zopangira.
8. Kuyesa kukana kutsetsereka kwa chitoliro chachitsulo cha ERW kumagwirizana ndi mawonekedwe a zinthu zopangira ndi njira yopangira chitolirocho. Kufanana kwa makulidwe a khoma ndi kupendekera kwake ndikwabwino kwambiri kuposa mapaipi achitsulo osasemphana, chomwe ndi chifukwa chachikulu chomwe kukana kugwa kwake kuli kokwera kuposa kwa mapaipi achitsulo osasemphana.
9. Mayeso a Impact Popeza kulimba kwa maziko a chitoliro chachitsulo cha ERW kuli kokwera kangapo kuposa chitoliro chachitsulo chosasunthika, kulimba kwa weld ndiye chinsinsi cha chitoliro chachitsulo cha ERW. Mwa kuwongolera kuchuluka kwa zonyansa muzinthu zopangira, kutalika ndi komwe kumayambira burr yodula, mawonekedwe a m'mphepete mwake, ngodya yolumikizira, liwiro la weld, mphamvu yotenthetsera ndi pafupipafupi, kuchuluka kwa weld extrusion, kutentha kwapakati komanso kuzama kwa retraction, kutalika kwa gawo loziziritsira mpweya ndi magawo ena a ndondomeko zimatsimikizika. Mphamvu ya weld imafika pa 60% ya chitsulo choyambira. Ndi kukhathamiritsa kwina, mphamvu ya impact ya weld imatha kukhala pafupi ndi mphamvu ya chitsulo choyambira, zomwe zimatsimikizira kuti ntchito yake siivuta.
10. Kuyesa Kuphulika Kuyesa kwamphamvu kwa mapaipi achitsulo a ERW ndi kwakukulu kwambiri kuposa zofunikira zonse, makamaka chifukwa cha kufanana kwakukulu kwa makulidwe a khoma ndi kukula kwakunja komweko kwa mapaipi achitsulo a ERW.