Kutheni i-welding eshushu yokunyibilika kombhobho we-PE inesiphako

Why is the hot melt welding of PE pipe defective

1.Uhlalutyo lweziphene ze-welding ze-PE pipe ye-melt welder eshushu

Umbhobho we-PE we-welding welding obushushu usetyenziswa ekufakeni iprojekthi yomnatha wombhobho.Ubukhulu bombhobho oyintloko wonikezelo lwamanzi mkhulu kune-63mm kwaye ubukhulu bodonga bukhulu kune-5mm.Kwinkqubo yokudibanisa izinto ezinjalo zombhobho, ubuninzi boxinzelelo lwamanzi womnatha wombhobho ungaphakathi kwe-60m, kwaye ukuchaneka kwe-welding kunokungahoywa.Nangona kunjalo, kumsebenzi osebenzayo, ngenxa yendawo yeentaba.Ukuba uxinzelelo lwamanzi olufunwa yi-terrain luphezulu kakhulu kwaye iteknoloji ye-welding ayikwanelanga, ezinye iziphene ziya kubonakala, ngoko kunzima ukuphucula umgangatho womsebenzi kunye nomgangatho kunye nokuhlangabezana nayo. iimfuno zomsebenzi.

1) Iziphene kwi-welding forming.

Ngokubanzi, iziphene ze-welded joint forming zibangelwa ikakhulu ukutenxa kwi-crimping geometry kunye nesakhiwo, esingenako ukuhlangabezana neemfuno ezifanelekileyo.

Okokuqala, ukuba kukho amabala okanye imicimbi yangaphandle kwi-welding end face, iya kukhokelela ekuphambukeni kobunzima bodonga lwe-welding kumacala omabini.Kwimeko yokufudumala okungalinganiyo, kuya kuba ne-asymmetry ejikeleze i-welding interface, kwaye ubungakanani abukwazi ukuhlangabezana nemimiselo echaphazelekayo, njenge-notch, i-gap kunye nezinye iziphene.

Okwesibini, ukuba isiphelo sobuso be-welding port simanzi ngexesha lokudibanisa, i-welding port ayibonakali kwaye iqinile;Okanye kukho umphunga wamanzi, oya kukhokelela kwiingxaki zomgangatho we-welding kunye nemijelo yokuvuza.

Okwesithathu, ukuba i-ovality yemibhobho edibeneyo ayihambisani nemimiselo echaphazelekayo, ukuthembeka kokubambisana kwe-butt akunakuqinisekiswa, kwaye ingxaki yokungahambi kakuhle iya kwenzeka.

Okwesine, ukuba i-stroke yokulungiswa iyaphambuka, okanye xa inyibilika, ukushisa kwe-docking kunye noxinzelelo luphantsi kwaye ixesha le-welding lifutshane, umgangatho we-welding interface uya kuncitshiswa.Ukuba isantya sokulungiswa sikhawuleza, okanye ubushushu kunye noxinzelelo luphezulu, ukuphakama kwe-welding interface kuphezulu okanye kubanzi kakhulu, okunciphisa ngobuchule icandelo lokuhamba kwamanzi kunye nokunciphisa ukuyila kwayo.

2) Ingxaki encinci yesiphene.

Iziphene ezincinci ziingxaki ezisemgangathweni kwi-welding interface, njengokuqhekeka, ukuqhekeka, ukungena kakubi njl.

Okokuqala, ukuba umgangatho wokunyibilika okushushu osetyenziswa ngabachwephesha bokwakha uhlwempuzekile okanye kukho ukutenxa kwinqanaba lokuhamba, umgangatho odibeneyo we-butt wemibhobho uya kuncitshiswa.Ngokomzekelo, xa ukuphambuka kwinqanaba lokuhamba kukhulu kune-0.6g / 10min, ukukhubazeka komgangatho we-welding interface kuya kwenzeka.Ukuba iqondo lobushushu lokunyibilika liphantsi okanye indawo yokuwelda imbi, kuya kubakho neentanda ze-welding interface kunye neentanda.

Okwesibini, kulwakhiwo lwangempela, ubuso bokugqibela bombhobho abuhambisani, okanye ubuso bokugqibela abunambiwanga ngokupheleleyo ngokusebenzisa ipleyiti yokufudumala, okukhokelela ekungeneni kwe-welding embi.

3) Iziphene zeMicroscopic.

Kumsebenzi wangempela we-welding, ngenxa yokushisa okuphezulu kokushisa okanye ixesha elide lokufudumala, umbhobho uya kuba ne-oxidized kwaye wonakaliswe.Kwiimeko ezinzulu, i-carbonization iya kwenzeka, ilandelwa ukuwohloka kwezinto.Kwiziphene ze-welding, iingxaki ezahlukeneyo zinxulumene.Ukuba abaqhubi kunye namagcisa abanasakhono sobugcisa kunye noxanduva

Nayiphi na imvakalelo yoxanduva, ukungaphumeleli ukwenza umsebenzi ofanelekileyo ngokuhambelana nokusebenza kwezixhobo kunye neemfuno ze-welding ziya kunciphisa ngokuthe ngcembe umgangatho wobunjineli be-welding.


Ixesha lokuposa: Aug-03-2021