Kumapayipi ashiselwe ubude besikhathi eside(Ipayipi lensimbi le-ERW), ukubonakaliswa kwemifantu kufaka phakathi ukuqhekeka okude, ukuqhekeka kwezikhathi zasendaweni kanye nokuqhekeka okungajwayelekile. Kukhona futhi amanye amapayipi ensimbi angenayo imifantu ebusweni ngemva kokushisela, kodwa imifantu izovela ngemva kokucaba, ukuqondisa noma ukuhlolwa komfutho wamanzi.

Izimbangela zokuqhekeka

1. Izinga eliphansi lezinto zokusetshenziswa

Ekukhiqizeni amapayipi ashiselwe, kuvame ukuba nama-burrs amakhulu kanye nezinkinga zobubanzi bempahla eluhlaza ngokweqile.
Uma i-burr ingaphandle ngesikhathi senqubo yokushisela, kulula ukukhiqiza imifantu eqhubekayo futhi ende eyisikhawu.
Ububanzi bempahla eluhlaza bukhulu kakhulu, imbobo ye-squeeze roll igcwele ngokweqile, yakha umumo wepentshisi oshiselwe, izimpawu zokushisela zangaphandle zinkulu, i-welding yangaphakathi incane noma cha, futhi izoqhekeka ngemva kokuqondisa.

2. Isimo esihlangene sekhoneni

Isimo soxhumano lwekhoneni lomphetho we-tube blank yinto evamile ekukhiqizeni amashubhu ashiselwe. I-diameter yepayipi encane, i-joint ekhoneni inzima kakhulu.
Ukulungiswa kokwakheka okunganele kuyisidingo samalunga ekhoneni.
Umklamo ongalungile we-squeeze roller pass, i-fillet yangaphandle enkulu kanye ne-engeli yokuphakama ye-roller yokucindezela yizici ezibalulekile ezithinta i-angle ehlangene.
Irediyasi eyodwa ayikwazi ukuqeda izinkinga ezihlangene ekhoneni ezibangelwa ukubunjwa okungalungile. Khulisa amandla okucindezela, ngaphandle kwalokho i-roller yokuminyanisa izoguga futhi ibe yi-elliptical esigabeni sakamuva sokukhiqiza, okuzoshubisa isimo sokushisela esimise okwepentshisi futhi kubangele uxhumo olunzima ekhoneni.

Ukuhlangana kwekhona kuzobangela ukuthi iningi lensimbi ligeleze liphuma ohlangothini olungenhla, kwenze inqubo yokuncibilika engazinzile. Ngalesi sikhathi, kuzoba nenqwaba yensimbi, i-welding seam izoshiswa ngokweqile, futhi ama-burrs angaphandle azoshisa, angajwayelekile, amakhulu futhi angabi lula ukuwashwa. Uma ijubane lokushisela lingalawulwa kahle, "ukushisela okungamanga" kwe-weld kuyokwenzeka nakanjani.

I-engeli yangaphandle ye-squeeze roller inkulu, ukuze i-tube engenalutho ingagcwaliswa ngokugcwele ku-roller yokuminyanisa, futhi isimo sokuthintana onqenqemeni siyashintsha sisuka ku-parallel siye ku-"V" isimo, futhi kuvela into yokuthi umthungo we-welding wangaphakathi awushicileli uyavela. .

I-squeeze roller igqoke isikhathi eside, futhi i-base bearing igqoke. Amashafti amabili akha i-engeli yokuphakama, okuholela ekucindezelekeni okunganele, i-ellipse eqondile kanye nokubandakanyeka kwe-engeli okunzima.

3. Ukukhetha okungenangqondo kwamapharamitha wenqubo

Imingcele yenqubo yokukhiqizwa kwamapayipi ahlanganisiwe ahlanganisa isivinini sokushisela (ijubane leyunithi), izinga lokushisa lokushisela (amandla aphezulu-imvamisa), wamanje we-welding (imvamisa ephezulu), amandla okukhipha (ithuluzi lokugaya kanye nezinto ezibonakalayo), i-angle yokuvula (ukugaya ) yethuluzi Idizayini nempahla, indawo yekhoyili yokungeniswa), i-inductor (impahla yekhoyili, isiqondiso esimazombezombe, indawo) kanye nosayizi nendawo yokumelana.

(1) Amandla aphezulu (azinzile futhi aqhubekayo), isivinini sokushisela, amandla e-welding extrusion kanye ne-angle yokuvula yimingcele yenqubo ebaluleke kakhulu, okumele ifaniswe ngokunengqondo, ngaphandle kwalokho ikhwalithi yokushisela izothinteka.

①Uma ijubane liphezulu kakhulu noma liphansi kakhulu, lizobangela ukungakwazi ukungena kwe-welding yezinga lokushisa eliphansi kanye nokushiswa ngokweqile kwezinga lokushisa eliphezulu, futhi i-weld izoqhekeka ngemva kokuba isicaba.

②Lapho amandla okukhama enganele, insimbi esemaphethelweni ezoshiselwa ayikwazi ukucindezelwa ndawonye, ​​ukungcola okusele ekushiseleni akukhishwe kalula, futhi amandla ayancishiswa.

Uma amandla e-extrusion emakhulu kakhulu, i-engeli yokugeleza kwensimbi iyanda, okusele kuphuma kalula, indawo ethinteke ukushisa iba mncane, futhi ikhwalithi yokushisela iyathuthukiswa. Kodwa-ke, uma ukucindezela kuphezulu kakhulu, kuzodala izinhlansi ezinkulu kanye nama-splashes, kubangele i-oxide encibilikisiwe kanye nengxenye yongqimba lwepulasitiki yensimbi ukuba ikhishwe, futhi i-weld izoba mncane ngemva kokuklwejwa, ngaleyo ndlela inciphise amandla e-weld.
I-extrusion force efanele iyisidingo esibalulekile sokuqinisekisa ikhwalithi yokushisela.

③I-engeli yokuvula inkulu kakhulu, enciphisa umthelela we-high-frequency proximity, ikhuphule ukulahleka kwamanje kwe-eddy, futhi inciphise izinga lokushisa lokushisela. Uma i-welding ngesivinini sokuqala, kuzovela imifantu;

Uma i-angle yokuvula incane kakhulu, i-welding current izobe ingazinzile, futhi ukuqhuma okuncane (intuitively isenzakalo sokukhipha) kanye nemifantu kuzokwenzeka endaweni yokucindezela.

(2) I-inductor (ikhoyili) iyingxenye eyinhloko yengxenye yokushisela yepayipi elishiselwe i-high-frequency weld. Igebe phakathi kwalo kanye ne-tube engenalutho kanye nobubanzi bokuvulwa kunethonya elikhulu kwikhwalithi yokushisela.

① Igebe phakathi kwe-inductor neshubhu elingenalutho likhulu kakhulu, okuholela ekwehleni okubukhali ekusebenzeni kahle kwe-inductor;
Uma igebe phakathi kwe-inductor kanye ne-tube blank lincane kakhulu, kulula ukukhiqiza ukukhishwa kukagesi phakathi kwe-inductor kanye ne-tube engenalutho, okubangela ukuqhekeka kwe-welding, futhi kulula futhi ukulinyazwa yi-tube engenalutho.

② Uma ububanzi bokuvula be-inductor bukhulu kakhulu, kuzonciphisa izinga lokushisa lokushisela lonqenqema lwesinqe seshubhu elingenalutho. Uma ijubane lokushisela lishesha, ukushisela okungamanga kanye nokuqhekeka kungenzeka kwenzeke ngemuva kokuqondisa.

Ekukhiqizeni amapayipi ahlanganisiwe aphezulu, kunezici eziningi ezibangela ukuqhekeka kwe-weld, futhi izindlela zokuvimbela nazo zihlukile. Kukhona okuguquguqukayo okuningi kakhulu ohlelweni lwe-welding high-frequency, futhi noma yikuphi ukukhubazeka kwesixhumanisi kuzogcina kuthinte ikhwalithi yokushisela.