I-Spot welding wuhlobo lwe-press welding kanye nohlobo lwendabuko lweukumelana nokushisela. Iyingxenye ebalulekile yokusebenza kwensimbi futhi isetshenziswa ezimbonini eziningi. Lesi sihloko sizochaza izimiso nezindlela zokusebenza zokushisela indawo ngokuningiliziwe ukukusiza ukuthi uqonde kangcono ukuthi kuyini ukushisela indawo.

 Kuyini I-Spot Welding?

I-Spot welding yindlela yokuhlanganisa insimbi lapho ingcindezi isetshenziswa ezintweni zokusebenza zensimbi ngama-electrode aphezulu naphansi, futhi amandla kagesi ayazifudumeza isikhathi esimisiwe, okubangela ukuthi insimbi ishisele lapho kuxhumana khona. Ama-electrode ngokuvamile enziwe ngethusi ngenxa ye-conductivity ephezulu yokushisa kanye nokumelana okuphansi. Lapho i-current idlula kuma-electrode kanye nezinto zokusebenza zensimbi, ukushisa kugxilwe ezindaweni zokuxhumana, kuzincibilikise zibe yisimo sepulasitiki. I-current iyamiswa, kodwa ingcindezi iyagcinwa, ihlanganisa izindawo zokuxhumana. Ama-spot weld mancane uma kuqhathaniswa, kanti ububanzi bendawo yokushisela ngayinye busukela ku-3 kuya ku-20 mm.

Isebenza kanjani i-Spot Welding?

Sihlukanisa inqubo ye-welding yendawo ibe yizinyathelo ezine: ukubeka imingcele, ukubeka ama-workpieces, ukusebenzisa ingcindezi, kanye nokudlulisa okwamanje.

Ukusetha Amapharamitha

Isinyathelo esibalulekile ekushiseleni indawo ukubeka imingcele yokushisela. Ukushisa okukhiqizwa phakathi nokushiselwa kwendawo kunqunywa ngokuyinhloko ngamapharamitha amathathu: okwamanje, ukumelana, nesikhathi. Ubudlelwano phakathi kwalawa mapharamitha buvezwa yilesi sibalo esilandelayo:

Q = I²Rt

Q = ukushisa okukhiqizwayo

I = welding current

R = ukumelana ku-electrode

T = ubude besikhathi sokugeleza kwamanje

Lawa mapharamitha athonya omunye nomunye futhi anqume ikhwalithi yokushisela. Umsinga unomthelela omkhulu kakhulu; inani layo eliyisikwele kuzibalo lithinta kakhulu ukushisa okukhiqizwayo. Ngakho-ke, ukulawula umsinga kubalulekile. Uma i-welding current iphezulu kakhulu, ingabangela ukuguquguquka namabhamuza ku-weld. Uma i-current iphansi kakhulu, izinto zokusebenza ngeke zincibilike ngendlela efanele.

Ukumelana ne-electrode kuyinselele ukulungisa ngesikhathi sokushisela, njengoba kuncike kakhulu ekumeni kwe-electrode nosayizi. Ubude besikhathi sokugeleza kwamanje bubalulekile futhi kufanele busethwe ngokubambisana namanye amapharamitha ukuze kuzuzwe imiphumela efiselekayo. Ukwengeza, ingcindezi yokushisela ingesinye isici esibalulekile. Ngaphandle kwengcindezi eyanele, ukushisela indawo okuphumelelayo kunzima ukukufeza.

Kuqondaniswe The Metal

Ngemuva kokulungisa amapharamitha, iinqubo Weldingiqala. Okokuqala, beka izinto zokusebenza phakathi kwama-electrode amabili, uqondanise insimbi ukuze ama-electrode aqonde indawo ezoshiselwa. Lesi sinyathelo sibalulekile ngoba uma iphoyinti lokushisela lingahambi kahle, i-weld izocisha, okungenzeka ukuthi ibangele ukuthi umkhiqizo ube nesici. Uma izingcezu zensimbi zinesimo esikhethekile noma zidinga ukunemba okuphezulu, kungaba inselele ukuqondisa indawo yokushisela ngokubukeka. Ezimweni ezinjalo, kuyadingeka ukudala i-jig ekhethekile. Ngale ndlela, udinga kuphela ukubeka izingcezu zensimbi ku-jig ukuze uqinisekise ukuqondana okufanele kwe-welding.

Faka Ingcindezi

Isinyathelo sesithathu sokushisela ukufaka ingcindezi ezintweni zokusebenza zensimbi. Ama-electrode aya ngasezintweni zokusebenza zensimbi futhi afaka ingcindezi, eqinisekisa ukuthi izinto zokusebenza nama-electrode axhumene ngokuqinile.

Ukudlula Kwamanje

Uma ama-electrode ecindezelwe ngokugcwele ensimbi, ungaqala okwamanje. Ngalesi sikhathi, i-current igeleza isuka kuma-electrode iye ezintweni zokusebenza zensimbi, okwenza insimbi incibilike. Uma isikhathi esimisiwe samanje siphela, i-current iyama ngokuzenzakalelayo. Kuleli qophelo, ama-electrode ayaqhubeka nokusebenzisa ukucindezela, okuvumela insimbi evuthayo ukuthi ihlangane ndawonye. Ekugcineni, ama-electrode akhululwa, agcwalise i-weld.

Izinto Ezivamile Ezifanele I-Spot Welding

Insimbi enekhabhoni ephansiisetshenziswa kabanzi ezingxenyeni zezimoto nasezindaweni ezivaliwe zensimbi. Ngalolu hlobo lwezinto ezibonakalayo, ungasetha umshini ophezulu wamanje kanye nesikhathi esifushane sokushisela ukuze usize ukwakha izindawo eziqinile ze-weld.

I-Aluminiuminokukhipha ukushisa okuhle kanye ne-conductivity, enokumelana okuphansi kakhulu. Nokho, ingaphezulu layo likhipha i-oxidize kalula. Lapho ushisela amashidi e-aluminium, khetha okokusebenza okushisela okunamandla aphezulu futhi usebenzise umshini wamanje ophansi onezilungiselelo zesikhathi eside zokushisela.

Insimbi engagqwalii-welding, i-pulse welding ivamise ukusetshenziselwa ukunciphisa umthelela wendawo ethinteke ukushisa ekubukekeni, ukuqinisekisa ukuthi i-weld ihlangabezana nezidingo zobuhle.

Lapho ushisela amashidi akhandisiwe, ungqimba lwe-zinc ebusweni lunephuzu elincibilikayo eliphansi, elifinyelelwa kalula, okubangela i-splatter ebalulekile kanye nokunamathela kwe-electrode, okuholela ekushiseni okungazinzile. Sisebenzisa inqubo yamanje ye-welding yezinyathelo ezimbili: isinyathelo sokuqala sisebenzisa umshini wamanje omncane ukuze udabule ungqimba lwe-zinc, futhi isinyathelo sesibili silungisa okwamanje kumingcele ye-welding efanelekile ukuze kuncishiswe i-splatter kanye ne-electrode sticking, ukuthuthukisa ukuzinza kwe-welding.

Ngaphezu kwalokhu, izintambo namapuleti ethusi, insimbi enamandla amakhulu, insimbi, nezinye izinsimbi nazo zingashiselwa kusetshenziswa amasu okushisela amabala. Izinto ezihlukene zingadinga imingcele ye-welding ehlukene.

Izicelo Spot Welding

I-Spot welding isetshenziswa kakhulu emikhakheni ehlukahlukene efana nezimoto, i-electronics, izinto zikagesi zasendlini, nezimboni zensimbi. Embonini yezimoto, i-spot welding isetshenziselwa ukuhlanganisa umzimba wemoto, onesakhiwo esiyinkimbinkimbi, esivame ukusebenzisa ama-spot welders aphathwayo noma ama-automated spot welding systems. Izingxenye eziningi zensimbi ezimotweni, njengamaphaneli aseceleni kwezihlalo, ama-shock absorbers, nama-brake pads, nazo zidinga ukushiselwa kwendawo. I-Spot welding ngokuvamile ifaneleka ukukhiqizwa kwengxenye yensimbi enevolumu ephezulu. Uma udinga ukushisela amashidi ensimbi angu-20,000 ngenyanga, ukushisela indawo kuyisinqumo esihle.

Izinzuzo Spot Welding

I-Spot welding inomlando omude wentuthuko futhi ibalulekile emikhakheni eminingi yezimboni ukuze kuhlanganiswe insimbi. Uma kuqhathaniswa nezinye izindlela zokushisela, ukushisela endaweni kunikeza izinzuzo ezimbalwa:

1. Isivinini Sokushisela Esisheshayo:I-Spot welding ishesha kakhulu kunezinye izindlela zokushisela. Nakuba ezinye izindlela zingase zithathe amaminithi ambalwa ukuqeda ukushisela, ukushisela kungaphela emizuzwaneni embalwa nje. Ngokuthuthuka kobuchwepheshe be-welding, izikhathi zokushisela amabala sezishesha kakhulu.

2. Ama-Welds we-Aesthetic:Imikhiqizo eshiselwe kusetshenziswa i-spot welding ijabulisa ngobuhle ngokunemba okuphezulu. Azikho ku-deformation, azinayo i-weld splatter, futhi zinemithungo emincane ebonakalayo. Le khwalithi ibalulekile ezimbonini ezifana nezezimoto lapho amazinga aphezulu obuhle abalulekile.

3. Ukusebenza Okuphephile:I-Spot welding inobunzima obuphansi bezobuchwepheshe ohlelweni lwakho lokusebenza, okwenza kube lula kubasebenzi abajwayelekile ukuthi baqeqeshwe futhi basebenze ngokuphepha.

4. Ukwenzeka Okuzenzakalelayo:I-Spot welding ifaneleka ukukhiqizwa ngobuningi bemikhiqizo yensimbi futhi ingahlanganiswa kalula nezinhlelo zamarobhothi zokuzenzakalela, kuncishiswe umsebenzi wezandla.

5. Azikho Izinto Zokugcwalisa Ezidingekayo:Ngokungafani nezinye izindlela zokushisela ezidinga izinto zokugcwalisa njalo, i-spot welding ihlanganisa ama-workpiece amabili ndawonye ngaphandle kwesidingo sempahla eyengeziwe.

Lezi zinzuzo zenza ukushisela amabala kube ukukhetha okuthandwayo ezimbonini ezidinga izinqubo zokujoyina ezisebenza kahle, zobuhle, eziphephile, ezizenzakalelayo, nezisebenza kahle.

Imikhawulo ye-resistance spot welding

Nakuba i-spot welding inamandla, ukusetshenziswa kwayo kunomkhawulo ngenxa yezinkinga ezithile zesakhiwo:

1. Ukunemba Kwendawo: I-Spot welding iqeda ngokukhipha okukodwa. Ngaphandle kwezinhlelo zokubeka eziqondile, ukungahambi kahle kungaholela ekulimaleni komkhiqizo kanye nokulahlwa.

2. Ukuqina kanye Nezingqinamba Zomumo: I-Spot welding ngokuvamile ifaneleka ukushisela amashidi amancane (0-6mm). Izinto eziwugqinsi noma ezimise okwehlukile kuyinselele ukushisela kusetshenziswa ukushisela indawo, okwenza kusetshenziswe obunye ubuchwepheshe bokushisela amapuleti ashubile noma amapayipi.

3. Amandla Ahlangene: Amajoyinti ashiselwe endaweni yokushisela angase angabi namandla kangako ngoba kuyinqubo yokushisela yendawo, egxile ekushiseleni indawo eyodwa ngesikhathi.

4. Izinselele Zokulawula Ikhwalithi: Ukushisela indawo kuhilela imingcele eminingi, ngayinye ethinta ikhwalithi yokushisela. Ukulungiswa okungalungile kwemingcele, njengokucindezela, kungabangela imiphumela ye-welding engaphelele.

Le mikhawulo idinga ukucatshangelwa ngokucophelela kohlobo lwempahla, ukujiya, kanye nezidingo zokushisela lapho kukhethwa indawo yokushisela noma ezinye izindlela zezidingo zokukhiqiza ezihlukene.

Spot Welding Machine

Ukuze uqedele imisebenzi yokushisela indawo, udinga aumshini wokushisela indawo. Imishini yokushisela i-Spot ngokuvamile iza ngezindlela eziningana:Izishicileli zendawo ezimisiwe, ama-welder e-benchtop spot,ephathekayo gun spot welder, futhiMulti spot welder. Ukukhethwa komshini wokushisela indawo kuncike kakhulu ekubunjweni nasekusayizini wezinto zakho zensimbi. Kumashidi awugqinsi angu-2 mm, i-vertical spot welder yanele. Kodwa-ke, emizimbeni yezimoto zokushisela lapho kunzima ukuhambisa izinto zokusebenza, kusetshenziswa izindlawu zokushisela eziphathwayo. Uma udinga ukushisela izindawo eziningana ezintweni zensimbi ngesikhathi esisodwa, i-welder enamabala amaningi ilungile.

Isifinyezo

Nansi incazelo mayelana nokushisela indawo.Insimbi yokushiselakuyisiteji esibalulekile ekucutshungulweni kwensimbi, futhi amasu okushisela amabala asetshenziswa kabanzi kuzo zonke izimboni ezihlukahlukene. Uma ufuna ukufunda okwengeziwe mayelana nokushisela indawo, ungavakashela iwebhusayithi yethu noma uthintane ngokuqondile nabasebenzi bethu bezobuchwepheshe.