GB/T 3091 "Welded steel pipe for low pressure fluid transportation" (2015 version of the standard version) yakagamuchirwa neNational Standardization Committee uye yakasunungurwa zviri pamutemo, kubva munaJune 01, 2016 kushandiswa kwepamutemo;Panguva imwecheteyo, iyo yekutanga GB/T 3091-2008 standard version haina pamutemo!
Dudziro yezvipimo zvakakosha zveNzvimbo itsva yeNyika:
1. Galvanized huremu - "Pazasi mutsetse"
Mune chiyero chitsva chenyika, pane zinc layer uremu indekisi ye galvanized simbi pombi kekutanga kuisa mberi "pasi zvinodiwa mutsetse"!Zvinonzi: mune yekare vhezheni yechiyero chete "yakataurirana mazwi" pahwaro hwekuwedzera "simbi pombi yemukati uye yekunze pamusoro galvanized layer unit nzvimbo inorema haifanire kunge isingasviki 300g/m²" inosungirwa chiyero zvinodiwa.
Nekuda kweizvozvo, avhareji yehupenyu hwesimbi pombi inowedzerwa neinenge 30% !!
2. Kupera kwepombi
Mapombi esimbi ane dhayamita rekunze risingapfuure 114.3mm(4 inches kana pasi) anofanirwa kunge akatsetseka nemuchina (asina mabhura kumagumo).
3. Gadzirisa welding yezvakaremara
Mushure mekudzokororwa kweiyo chiyero chitsva, kugadziriswa kwekukanganisa kunoshandurwa kuita: straight seam magetsi welded simbi pombi ine dhayamita yekunze isingasviki 219.1mm haibvumidzwe kugadzirisa welding.
Kuenzanisa: GB/T3091-2008 inotaura kuti "pombi yesimbi ine dhayamita yekunze isingapfuuri 114.3mm haibvumidzwe kugadzirisa welding, pombi yesimbi ine dhayamita yekunze isingasviki 114.3mm, inogona kugadzirisa zvakakanganiswa pabhesi resimbi uye weld."
4. Kukora kwemadziro
Chiyero chitsva chinotaridza kukosha kwehudiki hwezita remadziro kukora kwepombi yesimbi, ndiko kuti, Tafura 1 "Zita dhayamita, dhayamita rekunze, Nominal Wall ukobvu uye uncircularity yeSimbi pombi ine dhayamita yekunze isingapfuuri 219.1mm" inowedzerwa, iyo inopa a hwaro hwakananga hwekugadzira uye kusarudzwa kwezvinhu zveinjiniya dhizaini zvikamu.
Ø Simbi pombi ine zita remadziro ukobvu isingasviki ** diki haibvumidzwe kuita GB/T3091-2015 chiyero!!
5. Steel pombi chiratidzo
Chiyero chitsva chinoti: "Kumakwa kwepombi dzesimbi kuchasanganisira zvinotevera: zita remugadziri kana chiratidzo, nhamba yemhando yechigadzirwa, nhamba yemhando yesimbi, tsanangudzo yechigadzirwa uye nhamba yekuzivikanwa."
Mucherechedzo wepombi yesimbi unosanganisira chigadzirwa label uye pombi body code.Kana chimwe chemashoko ari pamusoro chisipo, hazvisi pamutemo.
Nguva yekutumira: Jul-09-2022