Kungani ukushisela okushisayo kwepayipi le-PE kungasebenzi kahle

Why is the hot melt welding of PE pipe defective

1.Ukuhlaziywa kokukhubazeka kokushisela kwe-PE pipe hot melt welder

Umshini we-PE we-hot melt welding usetshenziswa ekufakweni kwephrojekthi yenethiwekhi yamapayipi.Ububanzi bepayipi elikhulu lokuphakela amanzi bukhulu kuno-63mm futhi ukujiya kodonga bukhulu kuno-5mm.Enqubweni yokushisela izakhi zamapayipi anjalo, ukucindezela okukhulu kwamanzi kwenethiwekhi yepayipi kungaphakathi kwe-60m, futhi ukunemba kwe-welding kunganakwa.Kodwa-ke, emsebenzini osebenzayo, ngenxa yendawo yezintaba.Uma ukucindezela kwamanzi okudingwa indawo kuphezulu kakhulu futhi ubuchwepheshe be-welding akwanele, ezinye iziphambeko zizovela, ngakho-ke kunzima ukuthuthukisa izinga lomsebenzi kanye nekhwalithi futhi uhlangabezane nayo. izidingo zomsebenzi.

1) Amaphutha ekwakhiweni kwe-welding.

Ngokuvamile, amaphutha ashiselwe ukwakha ngokuhlanganyela ngokuyinhloko ngenxa yokuphambuka ku-crimping geometry kanye nesakhiwo, esingakwazi ukuhlangabezana nezidingo ezifanele.

Okokuqala, uma kukhona amabala noma izindaba zangaphandle ebusweni bokuphela kwe-welding, kuzoholela ekuphambukeni kobukhulu bodonga lwe-welding ezinhlangothini zombili.Endabeni yokushisa okungalingani, kuzoba ne-asymmetry ezungeze isikhombimsebenzisi se-welding, futhi ubukhulu abukwazi ukuhlangabezana nemithethonqubo efanele, njenge-notch, igebe kanye nezinye iziphambeko.

Okwesibili, uma ubuso bokugcina bechweba lokushisela bumanzi ngesikhathi sokushisela, i-port welding ayibonakali futhi iqinile;Noma kukhona umhwamuko wamanzi, ozoholela ezinkingeni zekhwalithi yokushisela namashaneli okuvuza.

Okwesithathu, uma i-ovality yamapayipi ahlanganisiwe ingahlangabezani nemithethonqubo efanele, ukuthembeka kokuhlanganiswa kwe-butt akukwazi ukuqinisekiswa, futhi inkinga yokungahambi kahle izokwenzeka.

Okwesine, uma i-fixture stroke ichezuka, noma lapho incibilika, izinga lokushisa le-docking nokucindezela kuphansi futhi isikhathi sokushisela sifushane, ikhwalithi yesixhumi esibonakalayo sokushisela izoncishiswa.Uma isivinini se-fixture sishesha, noma izinga lokushisa nokucindezela kuphezulu, ukuphakama kwe-welding interface kuphezulu noma kubanzi kakhulu, okunciphisa ngokwenziwa ingxenye yokugeleza kwamanzi futhi kunciphise ukugeleza kokuklama kwayo.

2) Inkinga ye-Micro defect.

Amaphutha amancane yizinkinga zekhwalithi kusixhumi esibonakalayo sokushisela, njengokuqhekeka, ukuqhekeka, ukungena kahle njll.

Okokuqala, uma izinga lokuncibilika okushisayo elisetshenziswa ochwepheshe bokwakha liphansi noma kukhona ukuchezuka kwesilinganiso sokugeleza, ikhwalithi ehlangene yezinqe yamapayipi izoncishiswa.Isibonelo, uma ukuchezuka kwezinga lokugeleza kungaphezu kuka-0.6g/10min, kuzovela iphutha lekhwalithi yesixhumi esibonakalayo sokushisela.Uma izinga lokushisa lokuncibilika liphansi noma indawo yokushisela impofu, kuzoba nokuqhekeka kwe-welding interface kanye nokuqhekeka.

Okwesibili, ekwakhiweni kwangempela, ubuso bokugcina bepayipi abufani, noma ubuso bokugcina abuhlanganiswe ngokugcwele ngokusebenzisa ipuleti yokushisa, okuholela ekungeneni kwe-welding okungalungile.

3) Ukukhubazeka kwe-Microscopic.

Emsebenzini we-welding wangempela, ngenxa yokushisa okuphezulu kokushisa noma isikhathi eside sokushisa, ipayipi izobe i-oxidized futhi yonakaliswe.Ezimweni ezimbi kakhulu, i-carbonization izokwenzeka, kulandelwa ukuwohloka kwezinto ezibonakalayo.Ngokukhubazeka kwe-welding, izinkinga ezihlukahlukene zihlobene.Uma opharetha kanye nochwepheshe bengenakho ikhono lobuchwepheshe nokuzibophezela

Noma yimuphi umuzwa wokuzibophezela, ukwehluleka ukwenza umsebenzi ofanele ngokuya ngokusebenza kwemishini kanye nezidingo zokushisela kuzonciphisa kancane kancane izinga lobunjiniyela bokushisela.


Isikhathi sokuthumela: Aug-03-2021