Mawu Oyamba
M'makampani opanga zitsulo,MFDC (Medium Frequency Direct Current) zowotchera malondi zida zofunika kuwotcherera, ndipo kuwotcherera kwawo kumakhudza mwachindunji kukhazikika kwazinthu ndi chitetezo. Komabe, nthawi zina powotcherera, timatha kukumana ndi vuto la thovu lomwe limawonekera pamalo omwe amawotcherera. Izi sizimangokhudza kukongola kwa weld komanso zimatha kusokoneza mphamvu zake. Nkhaniyi ikuyang'ana kwambiri mutu wakuti "Chifukwa chiyani pali thovu pamalo omwe amawotchereraMFDC spot welders?", amafufuza zomwe zimayambitsa, ndikupereka mayankho ogwirizana.
Chifukwa Analysis
- Kuipitsidwa Pamwamba:Ngati pamwamba pachitsulo sichimatsukidwa bwino musanawotcherera, zonyansa zotsalira monga mafuta, dothi, ndi ma oxides zimatha kutulutsa mpweya pansi pa kutentha kwakukulu kowotcherera, kupanga thovu.
- Zinthu Zosasinthika:Zinthu zosasunthika zochokera kuzinthu zowotcherera kapena malo ozungulira, monga utoto kapena mafuta opangira mafuta, zimatha kusungunuka zikatenthedwa. Mipweya imeneyi imatsekeredwa mu dziwe losungunuka, kupanga thovu.
- Mayamwidwe a Gasi:Zida zachitsulo zimatha kuyamwa mpweya ngati haidrojeni kapena okosijeni panthawi yowotcherera. Kutentha kwa m'deralo kumawonjezeka, mpweya umenewu umatulutsidwa, zomwe zimapangitsa kuti pakhale kuphulika.
- Zowotcherera Zolakwika:Kuyika kolakwika kwa zinthu monga kuwotcherera pakali pano, nthawi, ndi kukakamiza kungayambitse kutentha kwambiri kapena kusawotchera kosakwanira kwa zida zowotcherera, zomwe zimapangitsa thovu.
- Metal Vapor:Kukatentha kwambiri, zitsulo zimatha kusanduka nthunzi pang'ono kukhala nthunzi. Nthunziwu ukazizira ndi kukhazikika, umathanso kupanga thovu.
- Zida Zowotcherera Zosagwirizana:Kusakhazikika kwamankhwala pakati pa zinthu zosiyanasiyana kungayambitse kupanga kuwira.
- Kutetezedwa kwa Gasi:Mavuto monga kusayeneka kosakwanira kwa gasi wotchinga kapena kutayikira mu mizere ya gasi kumatha kupangitsa kuti gasi asatetezedwe bwino panthawi yowotcherera, kenako kumayambitsa thovu.
Zothetsera
- Limbikitsani Kuyeretsa:Onetsetsani kuti pamwamba pazitsulo zatsukidwa bwino musanawotchere kuti muchotse mafuta, litsiro, ndi ma oxides, kuchepetsa magwero otulutsa mpweya.
- Landirani Chilengedwe:Pewani kuwotcherera m'malo omwe ali ndi zinthu zosakhazikika, kapena chepetsani ndi kuyeretsa zinthu musanayambe kuwotcherera.
- Konzani Zowotcherera:Khazikitsani magawo monga kuwotcherera pakali pano, nthawi, ndi kupanikizika molingana ndi zida zowotcherera ndi zofunikira pakuwongolera kuti mupewe kutentha kwambiri kapena kutentha kosakwanira.
- Sankhani Zida Zowotcherera Zoyenera:Onetsetsani kuti zida zowotcherera zimagwirizana kuti mupewe kusakhazikika kwamankhwala.
- Yang'anani ndi Kusamalira Kachitidwe ka Gasi Woteteza:Tsimikizirani kuyera kwa gasi wotchinga (onetsetsani kuti ili pamwamba pa 99.7%); yang'anani pafupipafupi mizere ya gasi ngati ikutha ndikuwonetsetsa kuti ndi yoyera; fufuzani ngati valavu ya solenoid yomwe imayang'anira mpweya wotchinga mu welder ikugwira ntchito bwino.
- Yeretsani Mphuno Nthawi Zonse:Spatter imatha kumamatira ku nozzle panthawi yowotcherera, zomwe zimakhudza chitetezo cha gasi. Chifukwa chake, yeretsani nozzle pafupipafupi, nthawi zambiri amalimbikitsidwa mphindi 20-30 zilizonse.
- Oyendetsa Sitima:Limbikitsani maphunziro kwa ogwira ntchito kuti amvetsetse bwino njira yowotcherera ndi zida, kuwonetsetsa kuti zikugwira ntchito moyenera komanso zoikamo zoyenerera.
Mwachidule, zimayambitsa thovu pa weld mfundo zaMFDC spot weldersndi zovuta komanso zosiyanasiyana. Komabe, pogwiritsa ntchito njira monga kuyeretsa kowonjezereka, kuwongolera chilengedwe, kukhathamiritsa kwa magawo, kusankha zinthu, kuteteza dongosolo la gasi, kuyeretsa nozzles nthawi zonse, ndi maphunziro oyendetsa, titha kuchepetsa kapena kupewa kupangika kwa thovu, potero kuwongolera mtundu wa kuwotcherera.
