1. Kugwiritsa ntchito msika wapadziko lonse
Machubu a silinda achitsulo chopanda msoko amagwiritsidwa ntchito kwambiri posungira ndi mayendedwe a mpweya wothamanga kwambiri, ndipo misika yayikulu ikuphatikizapo:
Mpweya wa mafakitale (mpweya, nayitrogeni, argon, ndi zina zotero):
Zipangizo: 34CrMo4, 30CrMo (chitsulo champhamvu kwambiri)
Kugwiritsa ntchito: masilinda a gasi amphamvu kwambiri popanga zinthu, mankhwala, kuwotcherera ndi mafakitale ena.
Mpweya wa mphamvu (CNG, LNG, haidrojeni):
Zipangizo: 34CrMo4, XCrMo4 (kukana kuthamanga kwambiri, kukana kutentha kochepa)
Kugwiritsa ntchito: masilinda a CNG a magalimoto, matanki osungiramo LNG, malo osungiramo mphamvu ya haidrojeni ndi mayendedwe.
Mpweya wamankhwala ndi chakudya:
Zipangizo: Chitsulo chosapanga dzimbiri cha 316L (cholimba ndi dzimbiri, ukhondo wapamwamba)
Kugwiritsa ntchito: masilinda a okosijeni azachipatala, masilinda a CO₂ apamwamba kwambiri.
Masilinda ozimitsa moto ndi odumphira m'madzi:
Zipangizo: 4130, 37Mn (kulimba kwambiri, kukana kutopa)
Kugwiritsa ntchito: chipangizo chopumira moto, masilinda odumphira m'madzi.
2. Kusanthula kufunika kwa msika
(1) Zoyambitsa kukula kwa msika padziko lonse lapansi
Kusintha kwa mphamvu: Kufunika kwakukulu kwa mphamvu zoyera monga hydrogen, CNG/LNG, ndi zina zotero, kukuyendetsa kukula kwa msika wa masilinda a gasi opanikizika kwambiri.
Kukula kwa mafakitale: Kufunika kwa masilinda a gasi amphamvu kwambiri m'mafakitale opanga, mankhwala, ndi azachipatala kwakula pang'onopang'ono.
Kukweza malamulo ndi miyezo: Europe ndi United States (DOT, TPED) ndi Asia (GB, JIS) awonjezera zofunikira zachitetezo cha masilinda a gasi, zomwe zikupangitsa kuti pakhale kufunikira kwa mapaipi abwino kwambiri osasokonekera.
(2) Makhalidwe a kufunikira kwa msika m'madera osiyanasiyana
Msika wa ku Ulaya:
Tsatirani mosamala miyezo ya EN 1964 ndi PED (Pressure Equipment Directive), ndipo kondani zipangizo za 34CrMo4 ndi XCrMo4.
Kufunika kwa mphamvu ya haidrojeni ndi masilinda a gasi a CNG kukukulirakulira mofulumira.
Msika wa ku North America:
Amagwiritsa ntchito kwambiri muyezo wa ASTM A519 (4130/4140), ndipo pali kufunika kwakukulu kwa masilinda a gasi a CNG a magalimoto.
Makampani opanga mafuta ndi gasi akulimbikitsa kufunikira kwa masilinda a gasi amphamvu kwambiri.
Msika wa ku Asia (China, India, Japan ndi South Korea):
China: GB 18248 standard ikulamulira, 34CrMo4, 37Mn ikufunika kwambiri, ndipo msika wa masilinda a CNG/LNG ukukula mofulumira.
India: Misika ya gasi yamafakitale ndi magalimoto a CNG ikukulirakulira, zomwe zikuchititsa kuti machubu a masilinda alowe m'dziko muno.
| Munda wofunsira | Zipangizo zodziwika bwino | kukakamiza miyezo | Makhalidwe |
| Silinda ya gasi ya mafakitale | 34CrMo4、30CrMo | ISO 9809, IS 7285 | Mphamvu yayikulu Pitirizani kupanikizika kwambiri |
| Silinda ya gasi ya CNG | 34CrMo4、XCrMo4 | EN 1964, ISO 11439 | Woletsa kutopa Kukana kutentha kochepa |
| Silinda ya gasi ya LPG | 37Mn, 4130 | IS 7285, DIN 17200 | Mtundu wa zachuma Imagwiritsidwa ntchito pa sing'anga ndi kuthamanga kwambiri |
| Silinda ya gasi yachipatala | 316L, 37Mn | ISO 9809-3, IS 8198 | Yosagwira dzimbiri Ukhondo wambiri |
Japan/South Korea: Chitsulo cha JIS G3429 (STH11/STH22) chokhazikika, chapamwamba kwambiri chikufunika kwambiri.
Msika wa Middle East ndi Africa:
Makampani opanga mafuta ndi gasi akufunidwa kwambiri, ndipo msika wa zida zosungira ndi zonyamulira za CNG uli ndi kuthekera kwakukulu.
Ubwino waukulu wa machubu a silinda achitsulo osapindika aku China pamsika wapadziko lonse lapansi ndi magwiridwe antchito okwera mtengo, kutsatira malamulo, komanso unyolo wokhazikika wazinthu.
Ponena za njira zogulira zinthu, kampani yathu imalumikizana mwachindunji ndi mafakitale achitsulo (monga China Baosteel, Baotou Steel, Hengyang, Tianjin Steel Pipe) kuti ipeze mitengo yotsika.
Kusinthasintha kwakukulu, ntchito imodzi yokha ya maoda ang'onoang'ono ndi akuluakulu. Pa maoda ang'onoang'ono, tidzayang'ana kwambiri kupeza malo osungiramo zinthu, ndipo pa maoda akuluakulu, tidzagwira ntchito ndi mafakitale achitsulo kuti tipange nthawi yopangira zinthu.
Timapereka mitengo ya FOB ndi CIF kuti tithandize makasitomala kuthetsa mavuto okhudzana ndi kayendetsedwe ka katundu, kuchotsera katundu ndi zina.
34CrMo4 ndi 37Mn zomwe zimapangidwa ku China ndi zotsika mtengo ndi 20%-30% kuposa zinthu zaku Europe. Titha kupereka maoda ambiri mosalekeza. Tili ndi ziyeneretso zokhwima komanso luso logwira ntchito kuti tidziwe bwino komanso kupereka miyezo. Tilinso ndi makampani onyamula katundu okhazikika kwa nthawi yayitali.
Nthawi yotumizira: Juni-18-2025
