1. Ingakanani uxinzelelo lombhobho we-PE?

Ngokweemfuno zemigangatho yesizwe ye-GB/T13663-2000, uxinzelelo lweImibhobho ye-PEinokwahlulwa ibe ngamanqanaba amathandathu: 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, kunye ne-1.6MPa. Ngoko ke le datha ithetha ukuthini? Kulula kakhulu: Umzekelo, i-1.0 MPa, oko kuthetha ukuba uxinzelelo oluqhelekileyo lokusebenza kolu hlobo lweIzixhobo zeHdpeyi-1.0 MPa, nto leyo esidla ngokuyibiza ngokuba luxinzelelo lwe-10 kg. Kakade ke, kuvavanyo lwangaphambili loxinzelelo, ngokweemfuno zemigangatho yesizwe, kufuneka lube luxinzelelo izihlandlo ezili-1.5. Gcina uxinzelelo iiyure ezingama-24, oko kukuthi, uvavanyo lwenziwa ngoxinzelelo lwamanzi lwe-15 kg.

2. Lithini ixabiso le-SDR lombhobho we-PE?

Ixabiso le-SDR, elaziwa ngokuba yi-standard size ratio, lixabiso le-outer diameter ukuya kubukhulu bodonga. Sidla ngokusebenzisa ixabiso le-SDR ukumela i-kilogram pressure rating. Amaxabiso e-SDR ahambelanayo amanqanaba amathandathu e-0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, kunye ne-1.6MPa ngala: SDR33/SDR26/SDR21/SDR17/SDR13.6/SDR11.

Okwesithathu, umbuzo wobubanzi bombhobho we-PE

Ngokubanzi, iipayipi ze-PE zinobubanzi obuyi-20mm-1200mm. Ububanzi esithetha ngabo apha bubhekisela kububanzi obungaphandle. Umzekelo, ipayipi ye-PE ye-De200 1.0MPa yi-PE enobubanzi obungaphandle obuyi-200, uxinzelelo oluyi-10 kg, kunye nobukhulu bodonga obuyi-11.9 mm.

Okwesine, indlela yokubala ubunzima bemitha yombhobho we-PE

Xa abasebenzisi abaninzi beza kubuza ngexabiso leIzixhobo zePipe zeHDPE, abanye baya kubuza ukuba ingakanani ikhilogram, kufuneka sisebenzise idatha enye apha - ubunzima bemitha.

Siza kubhala iifomyula zokubala ubunzima bemitha yeepayipi ze-PE. Abahlobo abasweleyo baya kubakhumbula. Kuya kuba luncedo kumsebenzi wexesha elizayo:

Ubunzima bemitha (kg/m)=(ubukhulu bodonga olungaphandle ububanzi)*ubukhulu bodonga*3.14*1.05/1000

Ewe, konke oko kukwimixholo yanamhlanje. Ukuze ufumane ulwazi oluthe kratya malunga neepayipi ze-PE, nceda uqhubeke usinike ingqalelo. Dibana neShentong ukuze uphumelele kwimarike, wamkelekile ukubuza.