Uxinzelelo lwe-Welding INkokeli eSebenzayo kwiMveliso yeMisa

Uxinzelelo lwe-welding luthatha "uxinzelelo" njengendlela yokudibanisa engundoqo, efuna akukho (okanye encinci) imathiriyeli yokuzalisa. Inesantya sewelding ekhawulezayo kunye nexabiso eliphantsi, iyenza ilungele ukudityaniswa kobunzima beepleyiti ezincinci kunye neengcingo. Isetyenziswa kakhulu kwimimandla efana nokuveliswa kweemoto, imveliso yezixhobo zasekhaya, kunye nokupakishwa kwecandelo lombane.

(I) I-Resistance Welding: I-"Core Technology" kwi-Automotive Manufacturing

I-Resistance welding isebenzisa umgaqo "wokufudumeza ukuxhathisa." Iqinisa izixhobo zokusebenza kwaye igqithise umsinga omkhulu phakathi kwazo, ivelisa amaqondo obushushu aphezulu asekhaya ukuze anyibilike (okanye iplastiki ikhubazeke) iintsimbi. Emva kokupholisa, amabala e-weld ayenziwa. Yahlulahlulwe yaba ziindidi ezintathu: ukuwelda kwebala, ukuwelda komthungo, kunye ne-welding ye-projection, phakathi kwayo i-spot welding "yeyona nto iphambili" kwi-automotive body welding.

1. I-Spot Welding: I-"Dot Matrix" iTekhnoloji yokuDibanisa ngokufanelekileyo

Umgaqo: Ii-electrode ezimbini zibambe amacwecwe amancinci kwaye zigqithise umsinga omkhulu we-1000-10,000A ngazo. Ukumelana noqhagamshelwano phakathi kwee-electrodes kunye neepleyiti ezincinci zivelisa ubushushu, kubangela ukunyibilika kweentsimbi zendawo ukwenza "i-fusion core." Emva kokucima umbane, uxinzelelo luyagcinwa kude kube ukupholisa ukwenza indawo ejikelezayo ye-weld. Ukucwangcisa iindawo ezininzi ze-weld kwenza ukudibanisa indawo enkulu.

Amanqaku okusebenza:

•    Ukhetho lwe-Electrode:Sebenzisa i-electrode ye-copper-chromium alloy ukuwelda intsimbi enekhabhoni ephantsi kunye ne-electrode yobhedu-zirconium yealloyi ukuwelda amashiti entsimbi. Gcina incam ye-electrode ithe tyaba kwaye uyigaye kwakhona kwangethuba emva kokunxiba (ububanzi bencam buqheleke amaxesha angama-2-3 ubukhulu beplate).

•    Ulawulo Lweparamitha:Tshatisa ngokungqongqo ixesha welding (0.1-0.5 imizuzwana), yangoku (lungisa ngokobukhulu ipleyiti; umzekelo, 3000-4000A for 2mm iipleyiti zentsimbi eshinyeneyo), kunye noxinzelelo (ukuqinisekisa uqhagamshelwano oluqinileyo phakathi electrode kunye workpieces ukuphepha ukuxhathisa uqhagamshelwano ngokugqithisileyo) ukukhusela i-solder ebandayo okanye ukutshisa.

•    UHlolo lobulunga:Amabala e-weld kufuneka angabikho kwiintanda kunye ne-spatter. Ngexesha lokuvavanywa koxinzelelo ngomatshini wokuvavanya, "ukukrazula isiseko sesinyithi" kunokuba "i-weld spot detachment" kufuneka yenzeke ukuze kuqinisekiswe amandla e-welding.

2. I-Seam Welding: "Umgca woKhuselo oqhubekayo" weZakhiwo ezitywiniweyo

I-welding ye-Seam ifana nomgaqo wokujonga i-welding, kodwa ii-electrodes zitshintshwa ngeerola zobhedu. Ii-roller zijikeleza kwaye zigqithise i-pulsed current ukuze zenze i-weld eqhubekayo. Ilungele ukuwelda izakhiwo ezitywiniweyo ezifana neetanki zamafutha emoto, iilitha zokufudumeza amanzi, kunye nokudityaniswa kwemibhobho. Ngexesha lokusebenza, lawula uxinzelelo lwe-roller kunye nesantya sokujikeleza ukuze uqinisekise i-weld eqhubekayo, engavuziyo. Xa udibanisa amashiti ensimbi, coca rhoqo i-zinc layer kwi-roller surface ukuphepha ukuxhathisa okungaqhelekanga.

(II) I-Friction Welding: I-"High-Strength Option" ye-Shaft-Like Parts

I-Friction welding ifezekisa ukudibanisa ngokusebenzisa "i-high-speed rotational heat friction heat." Idibanisa iindawo ezimbini ze-cylindrical (ezifana ne-shafts kunye neentonga), enye ejikelezayo ngesantya esiphezulu (1000-5000r / min). Ubushushu obuveliswa kukukhuhlana buzisa ubuso boqhagamshelwano kwindawo yeplastiki. Emva kokuyeka ukujikeleza, uxinzelelo olukhulu lusetyenziswa ukwenza i-weld enamandla.

•    Izinto eziluncedo ezingundoqo:Amandla e-welding ephezulu (amandla e-weld aphezulu kunesiseko sesinyithi), akukho porosity okanye ukufakwa kwe-slag, kunye nesantya esikhawulezayo se-welding (ixesha elilodwa le-welding

•    Amanqaku okusebenza:Lawula isantya esijikelezayo kunye noxinzelelo lwe-friction ukuqinisekisa ubushushu obufanayo kwindawo yoqhagamshelwano (ukuphepha ukufudumala kwendawo); xa udibanisa izinto ezingafaniyo (ezifana nentsimbi kunye nobhedu), lungisa isantya sokujikeleza kunye noxinzelelo lokuthintela ukuqhekeka okubangelwa ukungafani kwe-coefficients yokwandisa i-thermal.