Munguva yewelding process, simbi ichaiswa welding inopisa, kunyunguduka (kana kusvika kune thermoplastic state) uye kunotevera kusimba uye kuenderera kutonhora nekuda kwekupisa kwekupinza uye kutapurirana, iyo inodaidzwa kuti welding heat process.
Iyo welding yekupisa process inomhanya mukati meiyo yese welding process, uye inova chimwe chezvinhu zvikuru zvinokanganisa uye nekuona welding mhando uye kugadzira welding kuburikidza nezvinotevera zvinhu:
1) Saizi uye kugoverwa kwekupisa kunoshandiswa kune weldment simbi inotarisisa chimiro uye saizi yedziva rakanyungudutswa.
2) Iyo dhigirii yemetallurgical reaction mune yekudziva dziva inowirirana zvakanyanya nemhedzisiro yekupisa uye kureba kwenguva iyo dziva riripo.
3) Shanduko yewelding yekudziya uye kutonhora ma parameter inokanganisa kusimba uye nhanho yekushandura nzira yeyakanyungudutswa dziva simbi, uye inokanganisa shanduko yesimbi microstructure munzvimbo ine kupisa-yakakanganiswa, saka chimiro uye zvivakwa zve weld uye welding kupisa-kukanganisa. zone zvakare inoenderana nebasa rekupisa rine chekuita.
4) Sezvo chikamu chimwe nechimwe chekushongedza chiri pasi pekupisa kusina kuenzana uye kutonhora, zvichikonzera kusagadzikana kwemamiriro ezvinhu, zvichiita kuti dhigirii dzakasiyana-siyana dzekutambudzika kuwedzere uye kuoma.
5) Pasi pechiito chekupisa kupisa, nekuda kwekubatana kwesimbi, kushushikana kwezvinhu uye chimiro chesimbi inosungirirwa, marudzi akasiyana-siyana ekutsemuka uye kumwe kukanganisa kwesimbi kunogona kuitika.
6) Kupisa kwekuisa welding uye kugona kwayo kunotaridza kumhanya kwekunyungudika kwesimbi yepasi uye welding tsvimbo (welding waya), zvichikanganisa kugadzirwa kwewelding.
Iyo welding heat process yakanyanya kuomarara kupfuura iyo pasi peyakajairwa kupisa kurapwa mamiriro, uye ine anotevera mana makuru maitiro:
a. Local concentration yewelding heat process
Iyo weldment haina kupisa seyese panguva yewelding, asi iyo inopisa sosi inongopisa nzvimbo iri padyo neakananga chiito, uye kudziyisa uye kutonhora kwakanyanya kusaenzana.
b. Mobility of welding heat source
Munguva yekushambadzira, iyo inopisa sosi inofamba maererano neyakagadzika, uye nzvimbo inopisa yekushongedza inogara ichichinja. Kana iyo welding yekupisa sosi iri padyo neimwe nzvimbo yeweldment, tembiricha yepoindi inokwira nekukurumidza, uye kana sosi yekupisa ichienda zvishoma nezvishoma, poindi yacho inotonhora zvakare.
c. Transientity ye welding heat process
Pasi pechiito cheyakanyanya kunyura sosi, kukurumidza kupisa kunokurumidza kukurumidza (mune arc welding, inogona kusvika kupfuura 1500 ° C / s), ndiko kuti, huwandu hukuru hwesimba hwekupisa hunotamiswa kubva pakupisa. tsime kune weldment munguva pfupi kwazvo, uye nekuda kwekudziya Kudziya kweyero inotonhorera zvakare yakakwira nekuda kwenzvimbo uye kufamba kwenzvimbo yekupisa.
d. Musanganiswa we weldment kupisa kupisa process
Iyo simbi yemvura muweld pool iri muchimiro chekufamba kwakanyanya. Mukati medziva rakanyungudutswa, nzira yekupisa yekupisa inodzorwa neconvection yemvura, nepo kunze kwedziva rakanyungudutswa, kutamisa kupisa kwakasimba kunotonga, uye kune zvakare convective kupisa kwekutamisa uye nemwaranzi kupisa kupisa. Naizvozvo, iyo welding yekupisa maitiro inosanganisira dzakasiyana nzira dzekupisa kupisa, inova dambudziko rekupisa kupisa.
Hunhu hwezvinhu zviri pamusoro zvinoita kuti dambudziko rewelding kupisa kupisa rive rakaoma. Nekudaro, nekuti ine zvakakosha pakudzora kwemhando yewelding uye kuvandudzwa kwechigadzirwa, XINFA inokurudzira kuti vashandi vewelding vanofanirwa kugona mitemo yayo yekutanga uye kuchinja maitiro pasi peakasiyana maitiro paramita.
Nguva yekutumira: Kubvumbi-07-2023
