Mu gawo la mapaipi a mafakitale, miyezo ndiye chitsimikizo cha ubwino. Lero, tikudziwitsani za muyezo wofunikira wa ASTM A139 ndikuwonetsani zinthu zapamwamba kwambiri za mapaipi achitsulo ozungulira opangidwa kutengera muyezo uwu.
Chidule chaASTM A139Muyezo
ASTM A139 ndi "Standard Specification for Electric Fusion Welded Steel Pipes" yopangidwa ndi American Society for Testing and Materials. Imafotokoza makamaka mapaipi achitsulo opangidwa pogwiritsa ntchito njira yolumikizira magetsi. Muyezo uwu umaphatikizapo magiredi asanu kuyambira A mpaka E, makamaka ogawidwa kutengera mphamvu yocheperako ya mapaipi achitsulo, ndipo amagwiritsidwa ntchito kwambiri m'malo opanikizika apakati kapena okwera kwambiri ponyamula mpweya, madzi, mafuta, ndi zakumwa zina.
Kutsatira miyezo ya ASTM A139Mapaipi a Zitsulo a Astmayenera kupitiliza kuwongolera njira zopangira zinthu mosamala komanso kuyesa mwamphamvu magwiridwe antchito a makina kuti atsimikizire kuti chitoliro chilichonse chachitsulo chili ndi mphamvu yokhazikika yonyamula katundu komanso mtundu wodalirika wa kuwotcherera.
Zinthu zatsopano zochokera ku ASTM A139
Monga kampani yotsogola yopanga mapaipi achitsulo chozungulira ku China, Cangzhou Spiral Steel Pipe Group posachedwapa yatulutsa chitoliro chachitsulo chozungulira cha S235 J0 kutengera muyezo wa ASTM A139. Chogulitsachi chikuyimira chitukuko chathu chaposachedwa pantchito yaukadaulo wa mapaipi achitsulo.
Chogulitsachi chimagwiritsa ntchito njira yapamwamba yopangira chitoliro chachitsulo chozungulira ndipo chili ndi zabwino zotsatirazi:
Kuwongolera kusintha kwa uniform: Njira yopangira zozungulira imatsimikizira kuti mbale yachitsulo imayendetsedwa ndi mphamvu yofanana panthawi yonse yokonza, kupewa kupsinjika kwapafupi.
Kuchepetsa kupsinjika kotsala: Kuwongolera bwino magawo opangira kumatsimikizira kuti kupsinjika kotsala mkati mwa chitoliro chachitsulo kumachepetsedwa, motero kumawonjezera kukhazikika kwa nthawi yayitali kwa chinthucho.
Ubwino wa pamwamba: Kukonza pamwamba mosalala komanso mopanda kukanda, kuchepetsa kuvutika kwa kugwiritsa ntchito utoto wotsutsana ndi dzimbiri ndikuwonjezera nthawi yogwira ntchito.
Chitsimikizo cha mphamvu ya bizinesi
Kampani ya Cangzhou Spiral Steel Pipe Group yomwe idakhazikitsidwa mu 1993, ili ku Cangzhou, Hebei Province. Yakhala kampani yayikulu kwambiri yopanga mapaipi achitsulo chozungulira ndi zinthu zokutira mapaipi ku China. Kampaniyo ili ndi malo okwana masikweya mita 350,000 ndi katundu wonse wa yuan 68 miliyoni ndi antchito 680 pakadali pano. 1.8 biliyoni RMB ya zotuluka pachaka, matani 400,000 a mapaipi achitsulo chozungulira pachaka.
Takhala tikubweretsa Miyezo Yapadziko Lonse ku China Yopanga Zinthu kwa zaka 30. Chitoliro chilichonse cha Astm Steel chomwe chimakwaniritsa muyezo wa ASTM A139 AWWA NSC chimayesedwa mosiyanasiyana kuyambira nthawi yogula zinthu zopangira mpaka zinthu zomaliza zitaperekedwa.
Kusankha mapaipi achitsulo ozungulira omwe amagwirizana ndi muyezo wa ASTM A139 ndi chisankho cha chitetezo, kudalirika komanso kulimba. Cangzhou Spiral Steel Pipe Group ikufunitsitsa kugwira nanu ntchito kuti mupange mapulojekiti a mapaipi okhalitsa.
Nthawi yotumizira: Marichi-05-2026