N'ime ụgbọ ala ọgbara ọhụrụ, ịdị mma ịgbado ọkụ nke ahụ- na-White (BIW) na-ekpebi ike nhazi ụgbọ ala ma na-egosipụta nkwụsi ike nke ahịrị mmepụta. Ụgbọ ala ndị njem nwere4,000 ruo 6,000 ntụpọ welds, ebe ụgbọ ala eletrik na nnukwu igwe siri ike - nwere ike gafere7,000 weld ihe. N'iji ọnụ ọgụgụ buru ibu nke weld dị otú ahụ, ọbụna obere pasent nke nkwonkwo na-adịghị akwụ ụgwọ nwere ike ịmalite ngwa ngwa n'ime ihe egwu dị oke egwu n'oge nyocha ikpeazụ. N'ihi nke a, ndị na-emepụta ụgbọ ala na-achọkarị - ọnụego nnabata weld dị n'elu99.5%, na mpaghara nhazi dị egwu na-abịaru nso99.9% ndakọrịta.
Na mmepụta kwa ụbọchị,ọsụsọnaadịghị ike weldsna-anọgide na abụọ kasị nkịtị ihe na-emetụta weld agbanwe agbanwe. Ọ bụghị nanị na Spatter na-emerụ elu elu workpiece ma na-amụba oge egweri {{1} weld, ma nke ka mkpa, ọ nwere ike kpuchie ntụpọ n'ime weld, na-eme ka weld adịghị ike ịchọpụta. Mgbe welds na-adịghị ike gafere n'ime usoro mgbakọ dị n'okpuru, ha na-ebutekarị nnukwu ọrụ{3} ma ọ bụ ihe ndị a jụrụ ajụ, nke nwere ike ịkpaghasị usoro mmepụta ihe na ịbawanye ọnụ ahịa nrụpụta.
Sistemụ ịgbado ọkụ AC na-eguzogide ntụpọ na-enwetakarị ọnụego ngafe mbụ{0} n'ogo nke96% ruo 98%, n'ụzọ dị ukwuu n'ihi oke njikwa na nkwụsi ike ntinye okpomọkụ. Ọ bụ ezie na a na-anabata ọkwa arụmọrụ a na nhazi ụgbọ ala mbụ na-eji ígwè dị nro, ụgbọ ala ọgbara ọhụrụ na-adabere kpamkpam na ígwè siri ike, mpempe akwụkwọ galvanized, na ọtụtụ{2} oyi akwa. Ndị a ihe na-achọ tighter usoro akara, na nanị ịba ụba ịgbado ọkụ ugbu a bụ agaghịkwa ezuru. Kama, isi ihe na-eme ka nkwụsi ike weld dịkwuo mma bụnjikwa ziri ezi nke ịgbado ọkụ waveform, hụ na ntinye ike ọ bụla na-anọgide na-eguzosi ike ma na-emegharị ya.
Kedu ihe kpatara Spatter na Welds adịghị ike ji na-eme?
N'ọtụtụ ebe nrụpụta, a na-ekwukarị weld spatter na adịghị ike n'ihi ihe na-ekwekọghị ekwekọ ma ọ bụ ihe ndị na-arụ ọrụ. Agbanyeghị, site n'echiche injinia, a na-ejikọkarị ntụpọ ndị a na ọnọdụ ntinye ọkụ na-akwụghị ọtọ. Mgbe ịgbado ọkụ ugbu a na-ebili ngwa ngwa ma ọ bụ mgbe kọntaktị na-agbanwe agbanwe, metal mpaghara nwere ike gbazee ngwa ngwa ma chụpụ ya na mpaghara weld n'ihi ike electromagnetic, na-emepụta spatter a na-ahụ anya gburugburu weld.
N'aka nke ọzọ, welds na-adịghị ike na-eme mgbe ntinye ọkụ na-ezughị ezu na-egbochi ịmepụta nugget weld zuru oke. Nrụrụ ndị a na-esikarị ike ịhụ anya mana ha nwere ike belata ike weld na ndụ ike ọgwụgwụ nke ukwuu. N'ime akụrụngwa akụrụngwa arụrụ arụ, welds adịghị ike nwere ike ịmepụta ebe ọdịda zoro ezo nke na-emebi nchekwa ụgbọ ala n'oge ogologo oge ọrụ ma ọ bụ mmemme mkpọka.
Iji ghọta nke ọma ntụpọ ịgbado ọkụ na-emekarị na mmetụta mmepụta ha, okpokoro a na-achịkọta ọnọdụ ndị a na-ahụkarị:
Ọdịiche Welding Na-ahụkarị na Mmetụta Ha
| Ụdị ntụpọ | Ọdịdị a na-ahụkarị | Mgbọrọgwụ | Mmetụta mmepụta |
|---|---|---|---|
| Spatter | Ihe metal gburugburu weld | Mbilite ngwa ngwa ugbu a ma ọ bụ kọntaktị anaghị akwụsi ike | Mmụba egweri na eyi electrode |
| Weld adịghị ike | Weld nugget na-erughị obere | Ntinye ọkụ ezughi oke | Mbelata ike nkwonkwo |
| Mbelata Ihe efu | Nhazi oghere dị n'ime | Ọnọdụ jụrụ oyi na-adịghị akwụsi ike | Mbelata njupụta weld |
| Ọkụ{{0}Site | Perforation ihe | Oke dị ugbu a ma ọ bụ obere nrụgide | Ọjụjụ workpiece |
Data mmepụta sitere na ahịrị ịgbado ọkụ ụgbọ ala na-egosi na spatter{0}okwu metụtara nwere ike ịbawanye ibu ọrụ mmecha site na30% ruo 50%, mgbe rework mere site na-adịghị ike welds nwere ike na-eriugboro atọ ruo ise ọzọkarịa ọkọlọtọ ịgbado ọkụ ọrụ. N'ụlọ ọrụ ụgbọ ala dị elu{{1}, otu awa nke nkwụsịtụ na-atụghị anya ya nwere ike bute mfu sitere na ọtụtụ puku ruo iri puku kwuru iri puku dollar, na-eme ka weld kwụsie ike ma ịdị mma na ego kacha mkpa.
MFDC Welding: Site na ikpo ọkụ siri ike ruo na njikwa ọkụ nkenke
Sistemụ ịgbado ọkụ ntụpọ AC ọdịnala na-arụ ọrụ na50 Hz, na-emepụta alternating current nke na-agafe efu n'oge okirikiri ọ bụla. Nke a ugboro ugboro nkwụsị nke ugbu a na-eme ka mpaghara weld na-enweta usoro oyi na-ekpo ọkụ na-aga n'ihu. Mgbanwe ọkụ dị otú ahụ na-ebutekarị nhazi nugget na-akwụghị ọtọ ma na-abawanye ohere nke spatter.
Sistemụ ịgbado ọkụ Ọkara Frequency Direct Current (MFDC), n'ụzọ dị iche, gbanwee ike na-abata n'imeelu -ugboro ugbu a karịrị 1,000 Hz, nke a na-edozizi ka ọ bụrụ ihe kwụ ọtọ ozugbo. N'ihi na nke ugbu a na-anọgide na-aga n'ihu, ntinye ọkụ na-agbanwe agbanwe, na-ekwe ka weld nugget tolite nke ọma. Uru a na-adị mkpa karịsịa mgbe ị na-agbado elu{2}} ígwè siri ike ma ọ bụ ihe galvanized.
Ntụle arụmọrụ AC vs MFDC Spot Welding
| Oke | AC ịgbado ọkụ | MFDC ịgbado ọkụ | Mmetụta bara uru |
|---|---|---|---|
| Ugboro mmepụta | 50 Hz | 1,000–4,000 Hz | Ugboro dị elu na-eme ka nkwụsi ike |
| Ụdị dị ugbu a | Na-atụgharị | Direct Ugbu a | Na-ewepụ nkwụsịtụ ugbu a |
| Okpomọkụ kwụsie ike | Na-agafeghị oke | Elu | Nhazi nugget ndị ọzọ otu |
| Ọnụego Spatter | Nke ka elu | E belatara site na 60-70% | Obere mmetọ elu |
| Njikwa ziri ezi | ±8–10% | N'ime ± 2% | Nkwekọrịta weld emelitere |
| Ịrụ ọrụ ike | Ala | 15-25% dị elu | Oriri ike belatara |
N'ebe a na-emepụta ihe n'ezie, usoro ịgbado ọkụ nke MFDC egosila ọganihu na-agbanwe agbanwe na àgwà weld. Ọtụtụ ndị na-emepụta ụgbọ ala na-akọ na nkwalite gaa na teknụzụ MFDC nwere ike ibu ụzọ bulie nnabata weld{1} site na ihe dị ka97% ruo n'elu 99.5%, na-ebelata oke ọrụ na imeziwanye mmepụta mmepụta.
Multi-Stage Waveform Control: Inye ike n'ebe ọ dị mkpa
Ka ihe eji eme ụgbọ ala na-adịwanye mgbagwoju anya, gụnyere ọtụtụ{{0}ọkwa oyi akwa na ihe agwakọtara dị ka igwe galvanized na igwe siri ike-, windo ịgbado ọkụ na-adịwanye warara. Ọ bụrụ na nke ugbu a na-ebili oke ike, oke nfe nwere ike ime. Ọ bụrụ na nke ugbu a ezughi oke, nhazi nugget nwere ike ezughị oke. Iji dozie ihe ịma aka ndị a, usoro ịgbado ọkụ nke MFDC ọgbara ọhụrụ na-adabere na yanjikwa ebili mmiri ọtụtụ{{0}ogbo, na-ekwe ka ike na-anapụta nwayọọ nwayọọ na Strategically ofụri ịgbado ọkụ okirikiri.
Ụdị nke atọ -Stige Welding Waveform Structure
| Ogbo | Ọrụ izizi | Oke ugbu a | Uru dị mma |
|---|---|---|---|
| Okpokoro ikpo ọkụ | Gbajie mkpuchi elu | 20–40% | Na-ebelata spatter mbụ |
| Isi Weld Stage | Ụdị weld nugget | 100% | Na-akwado ike weld |
| Forge Stage | Compress nugget | 40–60% | Na-akwalite njupụta |
Na omume, ụdị ebili mmiri ọtụtụ{0} ahaziri nke ọma na-akwalite nkwụsi ike weld. Dị ka ihe atụ, na galvanized ígwè ịgbado ọkụ, na preheat ogbo na-enyere agbaji n'elu coatings na kwụsie ike kọntaktị na-eguzogide, mgbe isi ogbo na-eme ka okpomọkụ zuru ezu maka nugget guzobe. Ogbo forge ikpeazụ na-emetụta mkpakọ a na-achịkwa iji kwalite njupụta njut ma belata ntụpọ dị n'ime.
Ihe omuma nke injinia na-egosi na atumatu ebili mmiri nke kachasi nma nwere ike ibelata nrụrụ mbelata site nakarịa 80%mgbe ị na-ejigide weld ike mgbanwe n'ime±3 N, N'ihi na ukwuu repeatable ịgbado ọkụ arụmọrụ.
Emechiela -Njikwa nzaghachi nzaghachi na-eme ka ogologo oge- kwụsie ike
Ọnọdụ ịgbado ọkụ anaghị agbanwe agbanwe. Ka oge na-aga, electrodes na-eyi, ọkpụrụkpụ mpempe akwụkwọ dịgasị iche iche, ọnọdụ mkpuchi nwere ike gbanwee. Na-enweghị ezigbo ụgwọ- oge, mgbanwe ndị a ji nwayọọ nwayọọ na-eweda ogo weld.
Eji usoro MFDC ọgbara ọhụrụmechiri- njikwa nzaghachi loop, na-aga n'ihu na-enyocha ịgbado ọkụ ugbu a, voltaji, na nguzogide ike. Site n'ịtụle mgbaama ndị a ozugbo, sistemụ na-agbanwe ngwa ngwa na-esote mmepụta ugbu a iji nọgide na-enwe ọnọdụ weld na-agbanwe agbanwe.
N'ahịrị ịgbado ọkụ ụgbọ ala dị elu,- njikwa loop mechiri emechi na-eme ka:
- Nkwughachi ike n'ime±2%
- Weld ike mgbanwe belatara site30–40%
- Nke mbu -Ngafe ọnụego nnabata kwadoro na99.9%
Maka ụlọ ọrụ ụgbọ ala dị elu-, usoro nkwụsi ike nke usoro a na-ebelata nke ukwuu, na-eme ka nrụpụta nrụpụta na-agbanwe agbanwe, ma na-ebelata ihe egwu nrụpụta n'ozuzu ya.
Ịhọrọ Sistemụ Welding Spot MFDC ziri ezi
Ịhọrọ nke ziri eziNgwa ịgbado ọkụ MFDCna-agụnye karịa ịtụnyere ikike dị ugbu a. Sistemu ahọpụtara nke ọma{1} ga-akwadorịrị usoro nkwụsi ike ogologo oge ma nabata ngwakọta ihe dị iche iche.
Nke mbụ, ekwesịrị iji nlezianya nyochaa mgbanwe mgbanwe waveform. Ihe arụrụ arụ ụgbọ ala na-agụnye nchịkọta ihe dị iche iche, yana ikike ịhazi ọtụtụ usoro ebili mmiri na-enye ndị na-arụ ọrụ aka ịmezi{1}} mezie nnyefe ike maka ngwa ọ bụla. Sistemu enweghị mgbanwe mgbanwe waveform na-agbasi mbọ ike ka ha nọgide na-arụ ọrụ kwụsiri ike n'onodu ịgbado ọkụ dị iche iche.
Nke abụọ, a ga-atụle nkenke nzaghachi. Sistemụ nzaghachi ziri ezi{1} dị elu nwere ike kwụọ ụgwọ maka uwe elektrọd ma ọ bụ mgbanwe ihe onwunwe na-akpaghị aka, na-ebelata mkpa maka mgbanwe nrụzi ihe ntuziaka na ịkwalite nrụpụta nrụpụta.
N'ikpeazụ, ikike njikwa data aghọwo ihe dị mkpa. Sistemụ ịdị mma ụgbọ ala chọrọ ugbu a nleba anya nke parampat ịgbado ọkụ. Sistemu na-edekọ akụkụ dị ugbu a, oge ịgbado ọkụ, na data nhazi na-enye ndị injinia aka inyocha akụkọ ihe mere eme mmepụta ma zaghachi ngwa ngwa maka nyocha dị mma ma ọ bụ okwu ubi.
Ezigbo -Ọmụmụ ihe gbasara ụwa: Na-emeziwanye nke mbụ-Ngafe mbata site na 97% ruo 99.9%
N'otu ọrụ ịgbado ọkụ ahụ, onye nrụpụta ahụ dabere na sistemụ ịgbado ọkụ AC ọdịnala. Ka oge na-aga, ndị injinia na-ahụ ihe na-efe efe ugboro ugboro, ndụ electrode dị mkpụmkpụ, na nsogbu nrụpụta ọrụ na-adịgide adịgide. Mgbe emechara nyocha usoro zuru ezu, ụlọ ọrụ ahụ kwalitere na sistemu ịgbado ọkụ nke MFDC ma mejuputa mmemme ụdị ikuku kacha mma.
Nsonaazụ dị ịrịba ama:
Ịgbado ọkụ Performance Tupu na Mgbe nkwalite
| Metric | Tupu nkwalite | Mgbe nkwalite |
|---|---|---|
| Mbụ-Ngafe Mbu | 97.2% | 99.9% |
| Ọnụego Spatter | 28% | 8% |
| Ndụ Electrode | 2,500 welds | 4,500 welds |
| Oge egweri | Ntọala | E wedara 40% |
Ikpe a na-egosi na njikarịcha waveform na-enye uru ego enwere ike ịtụtụrụ. Site na ibelata spatter na ibelata ọrụ nrụpụta, nrụpụta nrụpụta ka mma ebe ọnụ ahịa ọrụ na-ebelata nke ukwuu.
Mmechi
Dị ka mmepụta ụgbọ ala na-aga n'ihu na-aga n'ihu ruo ihe dị elu{0}} ike, ọtụtụ{1} ihe owuwu oyi akwa, yana sistemu mmepụta akpaaka, njikwa ogo ịgbado ọkụ agbanweela site na ngbanwe akwụkwọ ntuziaka gaa na data{2} chụpụrụ nkenke. Teknụzụ ịgbado ọkụ nke ntụpọ MFDC, jikọtara ya na ọtụtụ- njikwa waveform na mechiri emechi- nzaghachi, na-enye ọkwa kwụsie ike achọrọ maka nrụpụta ụgbọ ọgbara ọhụrụ.
Spatter na weld adịghị ike abụghị ntụpọ a na-apụghị izere ezere. N'ọtụtụ ọnọdụ, ha na-esite na njikwa ezughị ezu nke ntinye ọkụ kama njedebe ihe onwunwe na-enweghị atụ. Mgbe sistemu ịgbado ọkụ na-enwe ike ijikwa nnyefe ike n'ụzọ ziri ezi na ịhazigharị ike iji hazie ụdị dị iche iche, ịdịmma weld ga-abụ nke a na-ahụ anya ma nwee ike ikwugharị.
Maka ndị na-emepụta ihe na-eme atụmatụ ahịrị mmepụta ọhụrụ ma ọ bụ ịkwalite sistemu dị adị, itinye ego na teknụzụ MFDC na njikwa ebili mmiri dị elu abụghị naanị nkwalite teknụzụ. Ọ na-anọchi anya atụmatụ ogologo oge{1} iji kwalite ịdị n'otu weld, belata ụgwọ ọrụ, ma jikwaa asọmpi na mpaghara nrụpụta na-achọsiwanye ike.
