N'ime ụlọ ọrụ na-emepụta ígwè, dị ka mmepụta ụgbọ ala, mmepụta ngwa ụlọ, na ihe owuwu ụlọ, ebe nnukwu nguzogide corrosion bụ ihe kacha mkpa.Capacitor Discharge Welder (CDW)aghọwo ngwá ọrụ na-ahọrọ maka ịgbado ọkụ galvanized ígwè Ibé akwụkwọ n'ihi ike ya napụta elu ugbu a ozugbo na elu arụmọrụ. Otú ọ dị, njirimara pụrụ iche nke ígwè galvanized{{1}kpọmkwem ebe mgbaze dị ala nke zinc mkpuchi na ọchịchọ nke alloy{2} na-ebute nnukwu ihe ịma aka n'ịdị mma weld na ndụ electrode.
Ntuziaka a na-enye ntụle dị omimi nke {{0}dị omimi nke otu esi ahọrọ ụdị elektrọd n'ụzọ sayensị, dozie paramita ịgbado ọkụ, ma mejuputa usoro mmezi eletrọd dị mma maka igwe CDW mgbe ị na-agbado igwe galvanized, na-ahụ na welds dị elu{1} na ịbawanye ndụ ọrụ electrode.
I. Ihe ịma aka dị na Galvanized Steel Welding na Electrode Select Strategy
Ụdị dị iche iche nke ígwè galvanized dị na mkpuchi zinc ya. N'oge usoro ịgbado ọkụ na-eguzogide ntụpọ, oyi akwa zinc na-agbaze ngwa ngwa na vaporizes, emesia na-eji ihe electrode na-ejikọta ya (nke a na-ejikarị ọla kọpa), na-eduga na mmetọ ngwa ngwa na iyi nke ihu electrode.
Ntụaka data ikike: Chromium Standard -Zirconium-ọla kọpa (Cr-Zr-Cu) electrodes nwere ike nweta ndụ ihe karịrị 20,000 weld mgbe ị na-agbado igwe dị nro na-enweghị mkpuchi. Otú ọ dị, mgbe a na-agbado ọkụ{7}} nchara galvanized, ndụ electrode na-adaba n'ike n'ike ruo n'agbata 2,000 na 2,500 welds, mbelata ruru 90% [1]. Ya mere, nhọrọ electrode dị oké mkpa.
1. Nhọrọ Ụdị Electrode maka CD Welders
Nhazi eletrọd maka ndị welder CD ga-emerịrị ihe omume, na-eyi ihe mgbochi na mgbochi{0}}zinc adhesion.
| Ụdị Electrode | Ngwa na njirimara | Uru | Ndụmọdụ kachasị mma |
| Cone Electrode gbajiri agbaji | Kwesịrị ekwesị maka ịgbado ọkụ na-aga n'ihu, dị elu- na-agbanwe agbanwe. Dayameta ihu na-abụkarị 4-5 okpukpu akwụkwọ. | Nkesa nrụgide n'ụdị, na-ebelata nchụpụ zinc. | Kachasị mma maka obere mpempe akwụkwọ (<1.5mm); requires strict control over dressing. |
| Domed Electrode | Kwesịrị ekwesị maka ngwa - ụdị ịgbado ọkụ ma ọ bụ akụkụ dị mgbagwoju anya geometry. radius akwadoro: 25-50mm. | Na-anabata ntakịrị enweghị isi na-arụ ọrụ, na-ebelata mkpokọta nrụgide mpaghara. | Kwesịrị ekwesị maka akwa akwa ma ọ bụ akụkụ nwere curvature, mana ọ nwere ike gbasaa njupụta ugbu a. |
| Ọla kọpa-Tungsten Electrode | A na-eji maka ịdị elu-ike, elu{1}} chọrọ ịgbado ọkụ. | Ọla kọpa matrix na-eme ka o kwe omume omume kacha mma; Ihe ntinye alloy Tungsten na-eme ka nguzogide okpomọkụ dị elu{0}, na-eguzogide zinc alloy nke ọma, na-agbatị ndụ electrode nke ọma. | Ọnụ ego dị elu, ma na-ebelata oge nkwụsị maka ejiji, na-eme ka mmepụta mmepụta ihe dịkwuo mma. |
|
Electrode kpuchie (Cr-Zr-Cu base) |
Ihe ngwọta kachasị mma maka ígwè galvanized. | Nickel ma ọ bụ metal{0}ihe mkpuchi seramiiki etinyere n'elu electrode na-ekewapụ oyi akwa zinc nke ọma, na-abawanye ndụ electrode site n'ọtụtụ oge ma na-egbochi ọkụ na ịchụpụ. | Na-achọ ndị na-ebubata ihe pụrụ iche; Nhọrọ nke mbụ maka ịbawanye ndụ electrode. |
II. Ntuziaka bara uru na nhazi ihe nrụnye CD welder
CD welders na-ewepụta ike dị ukwuu n'ime obere oge site na mwepu capacitor ozugbo. Maka igwe galvanized, isi ụkpụrụ nke ntọala paramita bụ ịbanye ngwa ngwa n'ime oyi akwa zinc wee mepụta nugget tupu zinc eruo kpamkpam.
1. Kachasị mma nke ugbu a na oge
N'ihi nnukwu resistivity na volatility nke oyi akwa zinc, welding galvanized steel chọrọ ntinye ike dị elu.
| Oke | Usoro ngbanwe maka ịgbado ígwè galvanized | Ebumnuche na ụkpụrụ |
| Welding Ugbu a | Mmụba site na 30% ruo 50% ma e jiri ya tụnyere ịgbado ọkụ nchara dị nro. | Na-akwụ ụgwọ maka shunting ugbu a site na oyi akwa zinc yana ịba ụba kọntaktị kọntaktị, na-eme ka ike zuru oke banye n'ime oyi akwa zinc n'ime obere oge. |
| Oge Weld | Gbatịa site na 25% ruo 50% ma e jiri ya tụnyere ịgbado ọkụ nchara dị nro. | Na-agba mbọ hụ na oge zuru oke maka ''ịchụpụ'' ma ọ bụ chụpụ oyi akwa zinc, yana maka nha nugget iji mezuo ihe achọrọ. |
| Mgbasa Pulse | Jiri ihu na-arị elu (mwepu ngwa ngwa). | Njirimara mwepu ngwa ngwa nke CD welders na-akwado nhazi ngwa ngwa nugget tupu zinc apụta nke ọma, na-ebelata nchụpụ. |
Ntụnye nhazi ihe nrụnye (Ihe atụ: 0.8mm + 0.8mm Galvanized Steel):
- Welding Ugbu a: 18 - 25 kA (dabere n'ụdị welder na ike ike)
- Oge Weld: 50 - 100 millisekọnd (ms)
2. Strategy Control Force (Electrode Force)
Ike electrode kwesịrị ekwesị dị oke mkpa maka ịkwụsị nchụpụ yana ịhụ na ike weld dị ike. Obere ike na-eduga na vaporization zinc na ịchụpụ; oke ike na-ebelata njupụta ugbu a.
| Oke | Usoro ngbanwe maka ịgbado ígwè galvanized | Ebumnuche na ụkpụrụ |
| Electrode Force | Mee ka 10% ruo 25% tụnyere ịgbado ọkụ nchara dị nro. | 1. Na-agbaji n'elu ihe nkiri oxide na oyi akwa zinc, na-ebelata nkwụsị kọntaktị{1}} Na-egbochi mkpochapụ nke vapor zinc, na-ebelata nchụpụ . 3. Na-enye ike nrụpụta zuru oke mgbe emebere nugget iji gbochie mgbawa weld na mbelata. |
| Ngwa ndị dị obere (<1.0mm) | Nrụgide ntọala akwadoro: 0.3 MPa, ọ dị mma{1}}nwere ike idozi. | Na-ezere ntinye oke oke ka ị na-ahụ na kọntaktị siri ike. |
| Thick Sections (>1.5mm) | Nrụgide ntọala akwadoro: 0.5 MPa, mgbanwe. | Na-eme ka ntinye nrụgide zuru oke maka mpempe akwụkwọ buru ibu ma na-enye ike ịgha ihe dị mkpa. |
III. Usoro Nlekọta Electrode na ịrụ ọrụ mgbake
N'ihi nrapanye zinc na nrụgide okpomọkụ, mmezi electrode maka ndị na-agba CD bụ ihe kachasị mkpa maka ịhụ na ịdị mma weld dị mma na arụmọrụ.
1. Scientific Electrode ejiji
Ebumnuche nke mgbakwasa electrode bụ iwepụ ihe nkwụnye ego zinc na ngwaahịa oxidation na ihu na-arụ ọrụ ma weghachi contour mbụ, si otú ahụ nwetaghachi njupụta ugbu a na nkwụsi ike ịgbado ọkụ.
- Ugboro ejiji: A na-atụ aro ka ị nweta usoro ejiji dabere na- ma ọ bụ ntụaka{1}. Dịka ọmụmaatụ, yi akwa electrode ọ bụla 500 ruo 1000 welds, ma ọ bụ ozugbo mgbe ịgbado ọkụ ugbu a na-amalite ịgbanwe.
- Ngwa eji akwa akwa: Ekwesịrị iji akwa akwa eletrọd nkenke iji hụ na eweghachite cone mbụ gbajiri agbaji ma ọ bụ contour okirikiri.
- Ọnụ ego eji ejiji: Ihe ewepụrụ n'otu uwe ekwesịghị gafere 5% nke dayameta electrode [3]. Akwa akwa akwa na-ebelata ndụ elektrọd ngwa ngwa.
- Ngwa mgbochi {{0}Stick Agent: A na-atụ aro ka itinye ihe mgbochi (dị ka emulsion graphite) n'ọnụ ọnụ eletrọd eji ejiji iji belata mbufe ihe na nrapado zinc.
2. Njikwa Sistemu Nju
Usoro dị jụụ nke ọma bụ usoro ndụ maka ịgbatị ndụ electrode.
- Njikwa okpomọkụ: Jikwaa mmiri mmiri mbata dị n'etiti ogo 5 na ogo 30, na-ahụ na ọnọdụ okpomọkụ adịghị agafe ogo 40.
- Nleba anya na-efe efe: Na-enyocha mmiri na-eme ka mmiri dị jụụ mgbe niile iji hụ na ọ na-agbapụta nke ọma, na-egbochi oke ọkụ nke electrode dị n'ime nke nwere ike ime ka ọ dị nro na nrụrụ.
- Achọrọ Ogo Ogo mmiri: Jiri mmiri deionized ma ọ bụ dị nro mee ihe iji gbochie nhazi ọnụ ọgụgụ n'ime electrode, nke na-emebi nrụpụta okpomọkụ.
3. Arụmọrụ Iweghachite na Ogo nkwa
- Usoro nkwado: Maka nchikota ihe ọhụrụ ma ọ bụ ngbanwe oke, a ga-emerịrị weld ule, yana enyocha nha na ike ya site na nnwale na-emebi emebi (dịka nnwale peel).
- Parameter Consistency Audit: Na-elele sistemu njikwa welder mgbe niile ka ị hụ na ihe nrụpụta ugbu a na oge dabara n'ụkpụrụ edobere, nke bụ akụkụ dị mkpa nke njikwa mma maka ndị welder CD.
Mmechi
Iji hụ na ịdị mma weld kwụsiri ike maka nchara galvanized, nhọrọ na mmezi nke elektrọd maka ndị na-agbapụta ikuku Capacitor ga-abụrịrị nke ọma. Site n'ịhọrọ nke ukwuu mgbochi - electrodes (dị ka ọla kọpa composite- tungsten ma ọ bụ electrodes mkpuchi), na-edozi nke ọma ugbu a na ike ịbanye ngwa ngwa n'ime oyi akwa zinc, yana na-agbaso usoro mgbakwasa sayensị na oyi, ndị na-emepụta nwere ike melite ogo weld nke ukwuu, gbasaa ndụ electrode, na n'ikpeazụ nweta mmepụta ígwè galvanized nke ọma na nke a pụrụ ịdabere na ya.
Ịmepụta usoro ahaziri ahazi, nke akwadoro site na ọzụzụ ndị na-arụ ọrụ na-aga n'ihu na nhazi akụrụngwa oge niile, bụ ntọala maka ịhụ na welder CD gị na-ebuga arụmọrụ a pụrụ ịdabere na ya n'ofe ngwa igwe galvanized dị iche iche.
