Kumashishini okwenziwa kwesinyithi, njengokwenza iimoto, imveliso yezixhobo zekhaya, kunye nolwakhiwo, apho ukuxhathisa okuphezulu kokuthotywa kubaluleke kakhulu,I-Capacitor Discharge Welder (CDW)iye yaba sesona sixhobo sikhethwayo sokuwelda amashiti entsimbi ngenxa yobuchule bayo bokuhambisa langoku eliphezulu ngoko nangoko kunye nokusebenza kwalo okuphezulu. Nangona kunjalo, iimpawu ezizodwa zentsimbi ekhandiweyo{1}}ingakumbi indawo yokunyibilika ye-zinc esezantsi kunye nokuthambekela kwi-alloy{2}}kubangela imiceli mngeni ebalulekileyo kubulunga bentsimbi kunye nobomi be-electrode.
Esi sikhokelo sinika{0}}uhlalutyo olunzulu lwendlela yenzululwazi yokukhetha iintlobo ze-electrode, ukuseta ngokuchanekileyo iiparamitha ze-welding, kunye nokuphumeza iinkqubo ezifanelekileyo zokugcinwa kwe-electrode koomatshini be-CDW xa udibanisa intsimbi ekhandisiweyo, uqinisekisa{1}}umgangatho ophezulu wokuwelda kunye nokwandisa ubomi benkonzo ye-electrode.
I. Imingeni kwi-Galvanized Steel Welding and Electrode Selection Strategy
Ubume obahlukileyo bentsimbi ekhandiweyo bukwi-zinc yokwambathisa. Ngexesha lokumelana nenkqubo ye-welding, i-zinc layer iyanyibilika ngokukhawuleza kwaye ibe ngumphunga, emva koko idityaniswe nezinto ze-electrode (ngokuqhelekileyo iialloyi zobhedu), ezikhokelela kungcoliseko olukhawulezayo kunye nokunxiba kobuso be-electrode.
ISingqinisiso seDatha esiGunyaziweyo: iChromium esemgangathweni{0}}iZirconium{1}}Ubhedu (Cr{2}}Zr-Cu) ii-electrode zinokufikelela ubomi obungaphezu kwama-20,000 wewels xa udityaniswa nentsimbi ethambileyo ephakathi. Nangona kunjalo, xa ukuwelda kushushu{7}}dipha intsimbi ekhandisiweyo, ubomi be-electrode buhla kakhulu ukuya phakathi kwe-2,000 kunye ne-2,500 ye welds, ukwehla ukuya kuma-90% [1]. Ke ngoko, ukukhetha i-electrode kubalulekile.
1. UkuKhethwa koHlobo lwe-Electrode kwii-CD Welders
Uyilo lwe-electrode yee-CD welders kufuneka lulungelelanise ukuguquguquka, ukumelana nokunxiba, kunye ne-anti{0}}i-zinc adhesion.
| Uhlobo lwe-Electrode | Isicelo kunye neempawu | Iingenelo | Ingcebiso yoPhuculo |
| I-Truncated Cone Electrode | Ifanelekile ngokuqhubekayo, {0}indawo ehambelanayo yokuwelda. Idayamitha yobuso idla ngokuphindwe ka-4-5 ubukhulu beshiti. | Ukusabalalisa uxinzelelo olufanayo, ukunciphisa ukuxoshwa kwe-zinc. | Eyona nto ingcono kumaphepha amancinci (<1.5mm); requires strict control over dressing. |
| I-Domed Electrode | Ifanele umpu{0}}uhlobo lwezicelo zewelding okanye inxalenye entsonkothileyo yejometri. Iradiyasi ecetyiswayo: 25-50mm. | Ivumela ukungalingani okuncinci komsebenzi, ukunciphisa uxinzelelo lwendawo. | Ifanele amashiti ashinyeneyo okanye iinxalenye ezinegophe, kodwa zinokusasaza ukuxinana kwangoku. |
| Ubhedu oludityanisiweyo{0}}I-Tungsten Electrode | Isetyenziselwa-amandla aphezulu,{1}aphezulu{1}imfuno zokunxiba zokuxhathisa i-welding. | I-matrix yobhedu iqinisekisa ukuqhuba kakuhle; Ukufakwa kwe-Tungsten alloy kwandisa{0}}ukuxhathisa ubushushu, ukuxhathisa ngokufanelekileyo i-zinc alloying, bandisa kakhulu ubomi be-electrode. | Iindleko eziphezulu, kodwa zinciphisa kakhulu ixesha lokunciphisa ukugqoka, ukuphucula ukusebenza kakuhle kwemveliso. |
|
Electrode Coated (Cr-Zr{1}Cu base) |
Isisombululo esiphezulu ngokukodwa kwintsimbi ye-galvanized. | I-Nickel okanye isinyithi -izinto zokwaleka ezenziwe nge-ceramic ezifakwe kumphezulu we-electrode ziwuhlukanisa ngokufanelekileyo umaleko we-zinc, ukwandisa ubomi be-electrode kaninzi kwaye kucinezela ukutshisa kunye nokugxothwa. | Ifuna ababoneleli abakhethekileyo; ukhetho lokuqala lokwandisa ubomi be-electrode. |
II. Isikhokelo esisebenzayo kwi-CD Welder Parameter Configuration
Iiwelder zeCD zihambisa amandla amakhulu ngexesha elifutshane kakhulu ngokukhutshwa kwe-capacitor kwangoko. Kwintsimbi ye-galvanized, umgaqo ophambili wokumisela iparameter kukungena ngokukhawuleza kwi-zinc layer kwaye wenze i-nugget ngaphambi kokuba i-zinc iphuphume ngokupheleleyo.
1. UPhuculo lweParameter yangoku kunye nexesha
Ngenxa yokumelana okuphezulu kunye nokuguquguquka kwe-zinc layer, i-welding galvanized steel idinga igalelo eliphezulu lamandla.
| Ipharamitha | Isicwangciso-qhinga soLungiso lweNsimbi eGatiweyo | Injongo kunye noMgaqo |
| I-Welding yangoku | Ukwandisa nge-30% ukuya kwi-50% xa kuthelekiswa ne-welding yensimbi ethambileyo. | Ihlawulela i-shunting yangoku ngokusebenzisa i-zinc layer kunye nokunyuka kokuxhatshazwa koqhagamshelwano, ukuqinisekisa amandla aneleyo okungena kwi-zinc layer ngexesha elifutshane kakhulu. |
| Ixesha le-Weld | Yandisa nge-25% ukuya kwi-50% xa kuthelekiswa ne-welding yensimbi ethambileyo. | Iqinisekisa ixesha elaneleyo lokuba umaleko we-zinc "ugxothwe" okanye ugxothwe, kunye nobukhulu be-nugget ukuhlangabezana neemfuno. |
| Ukukhupha iPulse | Sebenzisa umphetho onyukayo (ukukhupha ngokukhawuleza). | Uphawu lokukhutshwa ngokukhawuleza kwe-CD welders luququzelela ukubunjwa ngokukhawuleza kwe-nugget ngaphambi kokuba i-zinc ibe ngumphunga ngokupheleleyo, ukunciphisa ukugxothwa. |
Ingcebiso yoLungiselelo lweParameter (Umzekelo: 0.8mm + 0.8mm intsimbi yeGalvanized):
- I-Welding yangoku: 18 - 25 kA (kuxhomekeke kwimodeli ye-welder kunye nomthamo we-capacitor)
- Ixesha le-Weld: 50 - 100 millisecond (ms)
2. IQhinga loLawulo lokunyanzeliswa (i-Electrode Force)
Amandla afanelekileyo e-electrode abalulekile ekucinezeleni ukugxothwa kunye nokuqinisekisa amandla e-weld. Amandla amancinci kakhulu akhokelela kwi-zinc vaporization kunye nokugxothwa; amandla amaninzi anciphisa ukuxinana kwangoku.
| Ipharamitha | Isicwangciso-qhinga soLungiso lweNsimbi eGatiweyo | Injongo kunye noMgaqo |
| I-Electrode Force | Ukwandisa nge-10% ukuya kwi-25% xa kuthelekiswa ne-welding yensimbi ethambileyo. | 1. Iqhekeza ifilimu ye-oxide engaphezulu kunye nomaleko we-zinc, inciphisa ukuxhathisa koqhagamshelwano{1}} Icinezela ukukhutshelwa komphunga we-zinc, ukunciphisa ukugxothwa{2}} Ibonelela ngamandla okubumba emva kokwenziwa kwe-nugget ukunqanda ukuqhekeka kwe-weld kunye nokuncipha. |
| Izixhobo eziNcinci (<1.0mm) | Uxinzelelo olusisiseko olucetyiswayo: 0.3 MPa, ilungile-iyavunywa. | Kunqanda ukujongwa ngokugqithisileyo ngelixa uqinisekisa uqhagamshelwano oluqinileyo. |
| Thick Sections (>1.5mm) | Uxinzelelo olusisiseko olucetywayo: 0.5 MPa, ukulungiswa. | Iqinisekisa ukungena koxinzelelo olwaneleyo kushiti ashinyeneyo kwaye inika amandla ayimfuneko okubumba. |
III. UkuLondolozwa kwe-Electrode kunye neeNkqubo zokuBuyisa ukuSebenza
Ngenxa ye-zinc adhesion kunye noxinzelelo lwe-thermal, ukugcinwa kwe-electrode ye-CD welders kubaluleke kakhulu ekuqinisekiseni umgangatho we-weld kunye nokusebenza kakuhle.
1. Isinxibo se-Electrode yenzululwazi
Injongo yokugqoka i-electrode kukususa iidiphozithi ze-zinc kunye neemveliso ze-oxidation ebusweni obusebenzayo kunye nokubuyisela i-contour yasekuqaleni, ngaloo ndlela ibuyisela ukuxinana kwangoku kunye nokuzinza kwe-welding.
- Isinxibo samaxesha amaninzi: Kuyacetyiswa ukuba usebenzise ixesha{{0}elisekwe okanye kwinqaku{1}iqhinga lokunxiba elisekelwe. Ngokomzekelo, nxiba i-electrode yonke i-welds engama-500 ukuya kwi-1000, okanye ngokukhawuleza xa i-welding current iqala ukuguquguquka.
- Isixhobo sokunxiba: Isinxibo se-electrode esichanekileyo kufuneka sisetyenziswe ukuqinisekisa ukubuyiswa kwekhowuni eyi-truncated yasekuqaleni okanye i-contour engqukuva.
- Ukunxiba Ukulawulwa Kwexabiso: Izinto ezisusiweyo ngokunxiba akufanele zidlule i-5% ye-electrode diameter [3]. Ukugqoka ngokugqithiseleyo kunciphisa ngokukhawuleza ubomi obupheleleyo be-electrode.
- I-Anti{0}Isicelo se-Agent ye-Stick: Kuyacetyiswa ukuba ufake i-anti{1}}i-agent yentonga (efana ne-graphite emulsion) kwincam ye-electrode enxityiweyo ukunciphisa ukudluliselwa kwezinto ze-zinc kunye nokubambelela.
2. Ulawulo lweNkqubo yokupholisa
Inkqubo yokupholisa esebenzayo ngumgca wobomi wokwandisa ubomi be-electrode.
- Ukulawula ubushushu: Gcina iqondo lokushisa lamanzi angenayo phakathi kwe-5 kunye ne-30 degree, uqinisekise ukuba ukushisa okuphumayo akudluli kwi-40 degree.
- Ukubeka iliso lokuhamba: Gcina iliso rhoqo ukuhamba kwamanzi okupholisa ukuqinisekisa ukuhamba okwaneleyo, ukuthintela ukugqithiswa kwangaphakathi kwe-electrode enokukhokelela ekuthobeni kunye nokuguqulwa.
- Iimfuno zoMgangatho waManzi: Sebenzisa amanzi ahlanjululweyo okanye athambileyo ukukhusela ukwakheka kwesikali ngaphakathi kwe-electrode, eyonakalisa ukusebenza kakuhle kobushushu.
3. UkuBuyiselwa kwakhona koMsebenzi kunye noQinisekiso loMgangatho
- Ukuqinisekiswa kweNkqubo: Ukudibanisa izinto ezintsha okanye ukulungiswa kweparameter, uvavanyo lwe-welds kufuneka lwenziwe, kunye nobukhulu be-nugget kunye namandla aqinisekisiwe ngovavanyo olutshabalalisayo (njengokuvavanya i-peel).
- I-Parameter Consistency Audit: Hlola rhoqo inkqubo yokulawula i-welder ukuqinisekisa ukuba imveliso yangempela yangoku kunye nexesha lihambelana namaxabiso amisiweyo, eyona nto ibalulekileyo yokulawula umgangatho we-CD welders.
Ukuqukumbela
Ukuqinisekisa umgangatho ozinzileyo we-weld wentsimbi ye-galvanized, ukukhethwa kunye nokugcinwa kwe-electrode ye-Capacitor Discharge Welders kufuneka ibe yinyameko. Ngokukhetha kakhulu -i-electrode enamathelayo (ezifana nobhedu oluhlanganisiweyo{2}}i-tungsten okanye i-electrode ezigqunyiweyo), ngokuchanekileyo uhlengahlengiso lwangoku kunye nokunyanzeliswa ukuba ungene ngokukhawuleza kumaleko we-zinc, kunye nokubambelela kwiinkqubo zenzululwazi zokunxiba kunye nokupholisa, abavelisi banokuphucula kakhulu umgangatho we-weld, bandise ubomi be-electrode, kwaye ekugqibeleni bafezekise imveliso yentsimbi esebenzayo kunye nethembekileyo.
Ukuphunyezwa kweenkqubo ezisemgangathweni, ezincediswa ngoqeqesho oluqhubekayo lwabaqhubi kunye nokugcinwa rhoqo kwezixhobo, sisiseko sokuqinisekisa ukuba i-CD yakho ye-welder ihambisa ukusebenza okuthembekileyo kuzo zonke izicelo zentsimbi.
