Mundima yemapombi eindasitiri, mitemo ndiyo inovimbisa kunaka kwemhando. Nhasi, tichakuzivisai nezvechiyero chakakosha cheASTM A139 uye tichakuratidzai zvigadzirwa zvemapaipi esimbi anotenderera emhando yepamusoro akagadzirwa zvichienderana nechiyero ichi.
Pfupiso yeASTM A139Zvakajairika
ASTM A139 ndiyo "Standard Specification yeMapaipi eSimbi Akasungirirwa neMagetsi" yakagadzirwa neAmerican Society for Testing and Materials. Inonyanya kufukidza mapaipi esimbi akagadzirwa uchishandisa nzira yekubatanidza simbi nemagetsi. Iyi chiyero inosanganisira magiredhi mashanu kubva paA kusvika kuE, anonyanya kurongwa zvichienderana nesimba diki remapaipi esimbi, uye inoshandiswa zvakanyanya munzvimbo dzine kumanikidzwa kwepakati kana kumanikidzwa kwakanyanya kutakura magasi, mvura, mafuta, nezvimwe zvinwiwa.
ASTM A139 inotevedzera mitemo yepamutemoMapaipi eSimbi eAstminofanira kudzorwa zvakasimba uye kuongororwa kwakasimba kwekushanda kwemuchina kuti ive nechokwadi chekuti pombi yega yega yesimbi ine kugona kwakasimba kwekutakura mutoro uye mhando yekuwedera yakavimbika.
Zvigadzirwa zvitsva zvakavakirwa paASTM A139
Semugadziri anotungamira wemapaipi esimbi anotenderera muChina, Cangzhou Spiral Steel Pipe Group ichangobva kutanga mapaipi esimbi anotenderera eS235 J0 zvichibva pachiyero cheASTM A139. Chigadzirwa ichi chinomiririra kufambira mberi kwedu kwazvino mumunda wetekinoroji yemapaipi esimbi.
Chigadzirwa ichi chinoshandisa nzira yepamusoro yekugadzira pombi yesimbi inotenderera uye chine mabhenefiti anotevera:
Kudzora kuchinjika kwesimbi kwakafanana: Maitiro ekugadzira spiral anoita kuti simbi ishandiswe nesimba rakafanana panguva yese yekugadzirisa, zvichidzivirira kushushikana kwenzvimbo.
Kuderedza kushushikana kwasara: Kudzora kwakanyatsonaka kwezvimiro zvekugadzira kunoita kuti kushushikana kwasara kuri mukati mepombi yesimbi kuderedzwa, nokudaro zvichiwedzera kugadzikana kwenguva refu kwechigadzirwa.
Hunhu hwakanaka hwepamusoro: Kurapa pamusoro kwakapfava uye kusina kukwenywa, zvichideredza kuoma kwekushandisa chifukidziro chekudzivirira ngura uye kuwedzera hupenyu hwebasa.
Vimbiso yesimba rebhizinesi
Yakavambwa muna 1993, Cangzhou Spiral Steel Pipe Group iri muCangzhou, Hebei Province. Yave kambani huru mukugadzira mapaipi esimbi anotenderera uye zvigadzirwa zvekuputira mapaipi muChina. Kambani iyi ine nzvimbo inosvika 350,000 square metres ne68 miriyoni yuan yose pamwe nevashandi 680 pari zvino. 1.8 bhiriyoni RMB yemubereko wepagore, matani 400,000 emapaipi esimbi anotenderera pagore.
Tagara tichiunza International Standards kuChina Manufacturing kwemakore makumi matatu. Mapaipi ese eAstm Steel anozadzisa mwero weASTM A139 AWWA NSC anoongororwa zvakasiyana-siyana zvichienderana nekuwanikwa kwezvinhu zvakagadziriswa kusvika zvasvika pakugadzirwa kwekupedzisira.
Kusarudza mapaipi esimbi anotenderera zvinoenderana neASTM A139 chisarudzo chekuchengetedza, kuvimbika uye kugara kwenguva refu. Cangzhou Spiral Steel Pipe Group inoda kushanda pamwe chete nemi kuvaka mapurojekiti emapaipi anogara kwenguva refu.
Nguva yekutumira: Kurume-05-2026