Imashini yo gusudirababaye ibikoresho byingenzi mubihimbano bigezweho, cyane cyane mubikorwa bya elegitoroniki yimodoka kandi neza, kubera imikorere yabyo, neza, hamwe nubwiza bwo gusudira.
Nyamara, abakoresha benshi bakunze guteshuka kubisubizo byanyuma byo gusudira kubera igenamiterere ridakwiye mugihe babanje gukoresha imashini cyangwa guhindura akazi. Kumenya neza ibipimo byo guhitamo no guhindura tekinike nibyingenzi kugirango hongerwe imbaraga imikorere yo gusudira MFDC no kwemeza ubuziranenge bwibicuruzwa.
Iyi ngingo izatanga ubujyakuzimu - nyamara isesengura ryibanze ryibice bitatu byingenzi byo gusudira bya MFDC byo gusudira: Welding Current, Welding Time, na Electrode Force, bitanga inama zifatika zo gutezimbere hamwe namakuru yemewe.
I. Isesengura ryibipimo byingenzi: Ibintu bitatu byerekana ubuziranenge bwa Weld
Uburyo bwo gusudira MFDC ni uburyo bukomeye bwa electro - ubushyuhe - uburyo bwa mashini, kandi ubwiza bwabwo bugenwa cyane cyane nibintu bitatu bifitanye isano.
1. Welding Current (I): "Moteri" yubushyuhe
Umuyoboro wo gusudira nisoko yambere yubushyuhe mugihe cyo gusudira ahantu hamwe nikintu gikomeye cyane kigira ingaruka kubunini n'imbaraga. Hagati ya tekinoroji ya inverter ikora itanga umusaruro uhamye kandi wuzuye DC isohoka, byemeza ubushyuhe bumwe.
| Ikintu | Inzira igezweho | Ingaruka n'ibyifuzo |
| Umubyimba w'akazi | Ugereranije neza nubunini | Impapuro zibyibushye zisaba umuyaga mwinshi kugirango wemeze ubunini bwa nugget. |
| Kurwanya Ibikoresho | Bitandukanye no kurwanya | Hejuru - ibikoresho byo kurwanya nkibyuma bidafite ingese bisaba umuyaga muke; hasi - ibikoresho byo kurwanya nkibyuma byoroheje bisaba umuyaga mwinshi. |
| Electrode Face Diameter | Ugereranije neza na diameter | Diameter nini yo mumaso igabanya ubwinshi bwubu; igiteranyo cyose kigomba kongerwa muburyo bukwiye kugirango ubucucike. |
Ibyatanzwe bifatika (Urugero: Icyuma Cyoroheje):
|
Ubunini bw'urupapuro rumwe (mm) |
Basabwe gusudira Urwego rugezweho (kA) |
| 0.5 + 0.5 | 8 - 12 |
| 1.0 + 1.0 | 12 - 18 |
| 2.0 + 2.0 | 20 - 28 |
Inama nziza:
- Ibihe Byinshi: Byoroshye biganisha ku kwirukanwa bikabije (spatter), kwihuta kwa electrode, no kwerekana hejuru cyane cyangwa gutwikwa.
- Ibihe bidahagije: Ibisubizo mubunini bwa nugget budahagije, biganisha ku gusudira gukonje cyangwa imbaraga zidahagije.
- Ibyiza - Ihame ryo Kuringaniza: Kugirango urusheho gukora neza no gusudira neza, koresha igihe gito cyo hejuru hamwe nigihe gito cyo gusudira, mugihe wirinze kwirukanwa.
2. Igihe cyo gusudira (t): "Umugenzuzi" wo Kwishyushya
Igihe cyo gusudira, gifatanije nubu, kigena ubushyuhe bwuzuye bwinjiza mugihe cyo gusudira ($ Q \\ propto I ^ 2Rt $). Ubushobozi bwabasudira ba MFDC kugirango bagere kuri milisegonda - kugenzura neza neza ni inyungu ikomeye kurenza gusudira gakondo AC.
Igihe cyo gusudira MFDC mubisanzwe gikubiyemo ibyiciro byinshi:
| Icyiciro cya Pulse | Ibisobanuro | Igitekerezo cyigihe |
| Gabanya Igihe | Iremeza guhuza cyane hagati ya electrode nakazi, ikuraho icyuho. | 100 - 500 ms |
| Igihe cyo gusudira | Igihe nyacyo cyo gutemba cyakoreshejwe mugukora nugget. | 50 - 250 ms |
| Fata Igihe | Igihe electrode ikomeza umuvuduko nyuma yumuyaga uciwe, bigatuma nugget ikonja kandi igakomera munsi yigitutu, ikarinda kugabanuka no gucika. | 100 - 300 ms |
| Kureka Igihe | Igihe cyigihe cyo gusudira kwitegura ahakurikira gusudira. | 50 - 150 ms |
Inama nziza:
- Igihe no Guhuza Ibihe: Igihe cyo gusudira cyane biganisha ku kwegeranya ubushyuhe bukabije, bishobora gutera ubushyuhe bwinshi no kwirukanwa; umwanya udahagije, niyo hamwe numuyoboro mwinshi, birashobora kuvamo gusudira gukonje kubera ubushyuhe budahagije. Ihuriro rya "Ikigezweho, Igihe gito" muri rusange gikundwa kugabanya ubushyuhe - zone yibasiwe (HAZ) no kongera umusaruro.
- Multi - Gusaba Impanuka: Kubikoresho byihariye (urugero, ibyuma bya galvanis), ukoresheje bibiri - pulse cyangwa byinshi - kugenzura impiswi bituma habaho gucunga neza gukwirakwiza ubushyuhe no gushiraho nugget.
3. Imbaraga za Electrode (F): "Ingwate" yo Guhuza no Gukomera
Imbaraga za electrode ningingo zingenzi zituma habaho guhuza cyane hagati yakazi, kugabanya kurwanya imikoranire, no gukoresha igitutu cyo guhimba nkuko nugget ikomera.
| Imbaraga Zirenze | Imbaraga zidahagije | Intego yo Gukwirakwiza |
| Ahantu ho guhurira hiyongera, ubucucike buriho buragabanuka, bikabuza gushiraho nugget. | Kurwanya guhura ni hejuru cyane, byoroshye biganisha ku kwirukana bikabije no gutwikwa hejuru. | Menya neza akazi gakomeye kandi utange igitutu gihagije nyuma yo gushingwa. |
Ibyatanzwe bifatika (Urugero: Icyuma Cyoroheje):
| Ubunini bw'urupapuro rumwe (mm) | Basabwe Imbaraga za Electrode (kN) |
| 0.5 + 0.5 | 1.5 - 3.0 |
| 1.0 + 1.0 | 3.0 - 5.0 |
| 2.0 + 2.0 | 5.0 - 8.0 |
Inama nziza:
- Imbaraga nuburinganire bugezweho: Mugihe imbaraga zigenda ziyongera, kurwanya imikoranire bigabanuka, bisaba kwiyongera gukwiranye nubu kugirango bishyure ubushyuhe.
- Imbaraga no Kwirukana: Imbaraga zidahagije nimpamvu nyamukuru yo kwirukanwa. Kongera imbaraga muburyo bukwiye birashobora guhagarika neza spatter bitabangamiye cyane ubucucike bwubu.
II. Porogaramu idasanzwe: Gusudira Ibisobanuro na Dual - Tekinike ya Pulse ya Galvanised Steel
Ibyuma bya Galvanised byerekana ibisabwa cyane kubipimo byo gusudira kubera itandukaniro rinini riri hagati yo gushonga kwa zinc (hafi . 419 dogere, aho gutekera hafi . 907 dogere) hamwe nicyuma cya substrate (gushonga hafi . 1538 dogere).
1. Inzitizi zo gusudira ibyuma bya Galvanised
- Kwivanga kwa Zinc: Igice cya zinc kiva mu bushyuhe bwo hejuru bwo gusudira, bigakora imyuka ya zinc itera kwirukana kandi ikanduza isura ya electrode.
- Kwambara Electrode: Zinc ikora hamwe nibikoresho bya electrode y'umuringa kugirango ikore imiringa, yihutishe kwambara electrode.
- Ubwiza bwa Nugget: Umwuka wa Zinc urashobora kubangamira imiterere ya nugget, kubangamira imbaraga za weld.
2. Ubuhanga bwibanze: Dual - Pulse (Pre - Ubushyuhe) Welding
Kugira ngo ikibazo cya zinc gikemuke, abasudira ba MFDC bakunze gukoresha Dual - Pulse cyangwa Pre - Ubushyuhe bwa Pulse:
- Mbere - Ubushyuhe Bwinshi (Buke Bugezweho, Igihe gito): Impanuka ntoya ikoreshwa kuri pre - gushyushya igihangano hanyuma ugabanye witonze cyangwa uhumeka neza urwego rwa zinc mukarere kahuza, bigatuma habaho uburyo bwiza bwo guhura kubwo gusudira gukurikira.
- Main Weld Pulse (Ibiriho Byinshi, Igihe gito): Nyuma ya zinc igenzurwa neza, umuyoboro muremure ushyirwa muburyo bwihuse kugirango ugire nugget nziza -.
Ikigereranyo cyo gusudira ibyuma bya feza (0.8mm + 0.8 mm):
| Parameter | Mbere - Ubushyuhe | Impanuka nyamukuru |
| Ibiriho (kA) | 5 - 8 | 15 - 20 |
| Igihe (ms) | 30 - 50 | 80 - 120 |
|
Imbaraga za Electrode (kN) |
3.5 - 4.5 (Guhoraho) | 3.5 - 4.5 (Guhoraho) |
III. Ubumenyi bwa Parameter Gushiraho Uburyo nuburambe bufatika
Gushiraho ibipimo byo gusudira MFDC ntabwo ari "umwe - na - byakozwe" ahubwo ni inzira ya cycle yo kwitoza, kugerageza, no gukora neza.
1. Uburyo bwo Gushiraho Ibipimo bya siyansi
1.Gena Ibyingenzi Byibanze:Reba imbonerahamwe isabwa yo gusudira itangwa nuwakoze uruganda rusudira ukurikije ibikoresho byakazi, ubunini, nubwoko bwa electrode kugirango ubone agaciro kambere kubigezweho, igihe, nimbaraga.
2.Kora Ikizamini Cyambere:Koresha ibipimo byambere kugirango usudire ibibanza 10-20 hanyuma ukore ikizamini cyangiza (nkikizamini cya peel) kugirango urebe ingano ya nugget n'imbaraga zo gusudira.
3.Kurikirana Feldomena yo gusudira:
- Kwirukana bikabije: Banza urebe niba ingufu za Electrode zihagije; icya kabiri, tekereza niba Welding Current iri hejuru cyane.
- Nugget idahagije / Ubukonje bukonje: Mubanze wongere Welding Current; icya kabiri, bikwiye kwagura Igihe cyo gusudira.
- Kwerekana Ubuso bukabije: Kugabanya gahoro gahoro ingufu za Electrode cyangwa Welding Current.
4.Byiza - Guhitamo neza:Hindura ibipimo bimwe gusa icyarimwe, mubyiyongereyeho 5% kugeza 10%, kugeza igihe imbaraga zo gusudira zisabwa zigaragara.
5.Gusuzuma neza:Kora igihe kirekire - manda, ikomeza gusudira hamwe nibipimo byiza kugirango umenye neza uko ibintu bimeze nko kwambara electrode no guhinduka kwubushyuhe.
2. Ibyiza n'imikorere igezweho ya MFDC Welders
Ubushobozi bwo hejuru - bwo gusudira neza bwa MFDC bwo gusudira bwitirirwa sisitemu yo kugenzura igezweho:
- Gufunga - Loop Igenzura:Weld ikurikirana ibyasohotse mubyukuri mugihe nyacyo - kandi ikabikosora byihuse ukurikije agaciro kashyizweho, ikemeza ko itajegajega kandi idahoraho, bitatewe nihindagurika rya gride cyangwa impinduka mubikorwa byo kurwanya.
- Kugenzura ahahanamye:Emerera ikigezweho kwiyongera cyangwa kugabanuka mugihe cyagenwe. Gukoresha upslope bigabanya neza kwirukanwa kwambere kandi bigatera gukwirakwiza ubushyuhe bumwe; ukoresheje infashanyo yamanutse mugukonjesha gukomeye kwa nugget.
- Multi - Ububiko bwihariye:Abagenzuzi ba MFDC bigezweho barashobora kubika ibintu byinshi cyangwa amagana yo gusudira, bigatuma abakoresha bahinduranya vuba hagati yimirimo itandukanye, bigatuma gukora byoroshye.
Umwanzuro
Gushiraho ibipimo bya Medium Frequency Spot Welder ninzira isaba guhuza ubuyobozi bwubuyobozi hamwe nuburambe bufatika.
Intego yibanze mugusobanukirwa isano noguhuza hagati ya Welding Current, Welding Time, na Electrode Force.
Ukurikije uburyo bwa siyanse yo gushiraho no gukoresha imashini idasanzwe ya MFDC igenzura neza hamwe na tekinoroji ya - ya pulse, cyane cyane ukoresheje uburyo bubiri - bwihariye bwibikoresho byihariye nk'ibyuma bya galvanis, uzashobora kuzamura cyane ubuziranenge bwo gusudira, kwagura ubuzima bwa electrode, hanyuma amaherezo ugabanye umusaruro wo gusudira neza.
