Beryllium Copper Resistance Welding Tips

Resistance welding ke mokhoa o ka tšeptjoang, o theko e tlase, hape o sebetsang oa ho kopanya likotoana tse peli kapa ho feta tsa tšepe hammoho.Le ha ho tjheselletsa tjheseletsa e le ts'ebetso ea 'nete ea ho tjheseletsa, ha ho na tšepe ea ho tlatsa, ha ho na khase ea welding.Ha ho na tšepe e feteletseng e lokelang ho tlosoa ka mor'a ho cheselletsa.Mokhoa ona o loketse tlhahiso ea bongata.Li-welds li tiile ebile ha li bonahale.

Ho ea ka nalane, ho tjheseletsa tjheseletsa ho ne ho sebediswa ka nepo ho kopanya dimetale tse phahameng tse hanyetsang tse kang tshepe le alloys ya nickel.Ts'ebetso e phahameng ea motlakase le ea mocheso ea li-alloys tsa koporo e etsa hore welding e be thata haholoanyane, empa lisebelisoa tse tloaelehileng tsa welding hangata li na le bokhoni ba ho etsa tsena The alloy e na le boleng bo botle bo tletseng weld.Ka mekhoa e nepahetseng ea ho tjheseletsa tjheseletsa, koporo ya beryllium e ka tjhesetswa ka boyona, ho tse ding tse ding tsa koporo, le ho tshepe.Li-alloys tsa koporo tse ka tlase ho 1.00mm botenya hangata li bonolo ho tjheseletsa.

Resistance welding process e atisang ho sebelisoa bakeng sa ho tjheseletsa likarolo tsa koporo tsa beryllium, welding ea matheba le projeke ea ho tjheseletsa.Botenya ba sesebelisoa sa mosebetsi, lisebelisoa tsa alloy, lisebelisoa tse sebelisoang le boemo ba holim'a metsi bo hlokahalang bo khetholla ho nepahala bakeng sa ts'ebetso e fapaneng.Mekhoa e meng e sebelisoang ka tloaelo ea ho hanyetsa, e kang ho cheselletsa lelakabe, ho cheselletsa butt, seam welding, joalo-joalo, ha e sebelisoe hangata bakeng sa li-alloys tsa koporo 'me e ke ke ea buisanoa.Li-alloys tsa koporo li bonolo ho li tiisa.

Linotlolo tsa ho hanyetsa welding ke tsa hona joale, khatello le nako.Moralo oa li-electrode le khetho ea lisebelisoa tsa elektrode li bohlokoa haholo ho tiisetso ea boleng ba welding.Kaha ho na le lingoliloeng tse ngata mabapi le ho hanyetsa tjheseletsa ea tšepe, litlhoko tse 'maloa tsa koporo ea beryllium tse hlahisitsoeng mona li bua ka botenya bo tšoanang.Resistance welding ha se mahlale a nepahetseng, 'me lisebelisoa le lits'ebetso tsa ho cheselletsa li na le tšusumetso e kholo ho boleng ba tjheseletsa.Ka hona, e hlahisitsoeng mona e le tataiso feela, ho ka sebelisoa letoto la liteko tsa welding ho fumana maemo a nepahetseng a ho cheselletsa ts'ebeliso ka 'ngoe.

Hobane litšila tse ngata tsa holim'a li-workpiece li na le khanyetso e phahameng ea motlakase, bokaholimo bo lokela ho hloekisoa khafetsa.Libaka tse silafetseng li ka eketsa mocheso o sebetsang oa eleketrode, tsa fokotsa bophelo ba ntlha ea eleketrode, tsa etsa hore bokaholimo bo se ke ba sebelisoa, 'me bo etse hore tšepe e khelohe sebakeng sa weld.baka kapa masalla a fosahetseng.Filimi ea oli e tšesaane haholo kapa e sireletsang e khomaretsoe ka holim'a metsi, eo ka kakaretso e se nang mathata a ho hanyetsa tjheseletsa, 'me beryllium koporo e electroplated holim'a metsi e na le mathata a fokolang ka ho tjheseletsa.

Koporo ea Beryllium e nang le mafura a mangata a se nang mafura kapa a fehlang kapa a hatakelang setempe a ka hlatsuoa.Haeba bokaholimo bo rusitse haholo kapa bokaholimo bo na le oxidized ke kalafo e bobebe ea mocheso, e hloka ho hlatsuoa ho tlosa oxide.Ho fapana le oxide e bofubelu-sootho ea koporo e bonahalang haholo, beryllium oxide e bonaletsang holim'a bokaholimo (e hlahisoang ke kalafo ea mocheso ka khase e sa sebetseng kapa e fokotsang) ho thata ho e lemoha, empa hape e tlameha ho tlosoa pele ho tjheseletsa.

Beryllium Copper Alloy

Ho na le mefuta e 'meli ea li-alloys tsa koporo tsa beryllium.Li-alloys tsa koporo tsa beryllium tse matla (Alloys 165, 15, 190, 290) li na le matla a phahameng ho feta leha e le efe alloy ea koporo 'me li sebelisoa haholo ho li-connectors tsa motlakase, li-switches le liliba.Motlakase le mocheso oa motlakase oa motsoako ona o matla o ka bang 20% ​​oa koporo e hloekileng;li-alloys tsa koporo tse phahameng tsa beryllium (li-alloys 3.10 le 174) li na le matla a fokolang, 'me motlakase oa tsona o ka bang 50% oa koporo e hloekileng, e sebelisetsoang lihokelo tsa matla le li-relay.Matla a phahameng a beryllium alloys koporo a bonolo ho hanyetsa weld ka lebaka la conductivity ea bona e tlaase ea motlakase (kapa resistivity e phahameng).

Beryllium koporo e fumana matla a eona a phahameng ka mor'a phekolo ea mocheso, 'me li-alloys tsa koporo tse peli tsa beryllium li ka fanoa ka boemo ba pele ho mocheso kapa mocheso.Ts'ebetso ea welding hangata e lokela ho fanoa maemong a kentsoeng mocheso.Ts'ebetso ea welding hangata e lokela ho etsoa kamora kalafo ea mocheso.Ho tjheseletsa tjheseletsa ya koporo ya beryllium, sebaka se amehileng ke mocheso hangata se nyane haholo, mme ha ho hlokehe ho ba le sesebediswa sa koporo sa beryllium bakeng sa kalafo ya mocheso kamora ho tjheseletsa.Alloy M25 ke sehlahisoa sa koporo ea koporo ea beryllium e sa lefelloeng.Kaha motsoako ona o na le loto, ha o tšoanelehe bakeng sa tjheseletsa ea ho hanyetsa.

Resistance spot welding

Koporo ea Beryllium e na le resistivity e tlase, conductivity e phahameng ea mocheso le coefficient ea ho atolosa ho feta tšepe.Ka kakaretso, koporo ea beryllium e na le matla a tšoanang kapa a phahameng ho feta tšepe.Ha u sebelisa ho hanyetsa letheba tjheseletsa (RSW) beryllium koporo ka boeona kapa beryllium koporo le metsoako e meng, sebelisa phahameng tjheseletsa hona joale, (15%), tlaase gagamalo (75%) le khutsoanyane tjheseletsa nako (50%) .Koporo ea Beryllium e mamella likhatello tse phahameng tsa welding ho feta li-alloys tse ling tsa koporo, empa mathata a ka boela a bakoa ke khatello e tlase haholo.

Ho fumana sephetho se ts'oanang ho li-alloys tsa koporo, lisebelisoa tsa ho tjheseletsa li tlameha ho khona ho laola nako le hona joale ka nepo, 'me lisebelisoa tsa welding tsa AC li khethoa ka lebaka la mocheso oa eona o tlase oa elektrode le theko e tlase.Linako tsa welding tsa 4-8 cycles li hlahisitse litholoana tse ntle.Ha tšepe tjheseletsa le coefficients tšoanang katoloso, sekamesa tjheseletsa le overcurrent tjheseletsa ka laola katoloso ea tšepe ho fokotsa kotsi e patiloeng ea mapetsong tjheseletsa.Beryllium koporo le lisebelisoa tse ling tsa koporo li cheselitsoe ntle le ho thekesela le ho chesehela ho feta tekano.Haeba ho sebelisoa welding le overcurrent welding, palo ea linako e itšetlehile ka botenya ba workpiece.

Sebakeng sa ho hanyetsa tjheseletsa ea koporo ea beryllium le tšepe, kapa li-alloys tse ling tse phahameng tsa ho hanyetsa, ho leka-lekana ha mocheso ho ka fumanoa ka ho sebelisa li-electrode tse nang le libaka tse nyenyane tsa ho kopana ka lehlakoreng le leng la koporo ea beryllium.Lisebelisoa tsa elektrode tse amanang le koporo ea beryllium li lokela ho ba le conductivity e phahameng ho feta workpiece, electrode ea sehlopha sa RWMA2 e loketse.Li-electrode tsa tšepe tse refractory (tungsten le molybdenum) li na le lintlha tse phahameng haholo tsa ho qhibiliha.Ha ho na tšekamelo ea ho khomarela koporo ea beryllium.Li-electrode tsa 13 le 14 li fumaneha hape.Molemo oa litšepe tse refractory ke bophelo ba bona ba nako e telele ea tšebeletso.Leha ho le joalo, ka lebaka la ho thatafala ha li-alloys tse joalo, tšenyo e ka holim'a metsi e ka khoneha.Li-electrode tse pholileng ka metsi li tla thusa ho laola mocheso oa ntlha le ho lelefatsa bophelo ba li-electrode.Leha ho le joalo, ha ho chesetsoa likarolo tse tšesaane haholo tsa koporo ea beryllium, tšebeliso ea li-electrode tse pholileng ka metsi li ka fella ka ho tima tšepe.

Haeba phapang ea botenya pakeng tsa koporo ea beryllium le alloy e phahameng ea resistivity e kholo ho feta 5, ho lokela ho sebelisoa welding ka lebaka la khaello ea tekanyo e sebetsang ea mocheso.

Resistance projection welding

Mathata a mangata a koporo ea beryllium ho tjheseletsa sebakeng sa ho hanyetsa a ka rarolloa ka resistance projection welding (RpW).Ka lebaka la sebaka sa eona se senyenyane se amehileng ke mocheso, ho ka etsoa mesebetsi e mengata.Litšepe tse fapaneng tsa botenya bo fapaneng li bonolo ho cheselletsa.Li-electrode tse pharalletseng tse fapaneng le libopeho tse fapaneng tsa li-electrode li sebelisoa ho tjheseletsa projeke ea ho hanyetsa ho fokotsa deformation le ho khomarela.Electrode conductivity ha e na bothata ho feta ho tjheseletsa sebakeng sa ho hanyetsa.Tse sebelisoang ka tloaelo ke li-electrode tsa 2, 3, le 4-pole;ha eleketrode e thatafala, bophelo bo bolelele.

Li-alloys tse bonolo tsa koporo ha li kenelle ho tjheseletsa projeke ea ho hanyetsa, koporo ea beryllium e matla ho lekana ho thibela ho phatloha pele ho nako le ho fana ka weld e felletseng haholo.Koporo ea Beryllium le eona e ka hlahisoa ka botenya ka tlase ho 0.25mm.Joalo ka ho tjheseletsa sebaka sa ho hanyetsa, hangata ho sebelisoa lisebelisoa tsa AC.

Ha ho rekisoa litšepe tse sa tšoaneng, maqhubu a teng ka li-alloys tse phahameng tsa conductive.Beryllium koporo e bonolo ho lekana ho phunya kapa ho ntša hoo e batlang e le sebopeho sefe kapa sefe sa convex.Ho kenyeletsoa libopeho tse bohale haholo.Mosebetsi oa koporo oa beryllium o lokela ho thehoa pele ho phekolo ea mocheso ho qoba ho phunyeha.

Joalo ka li-welding spot welding, ts'ebetso ea welding ea koporo ea beryllium hangata e hloka amperage e phahameng.Matla a tlameha ho matlafatsoa ka nakoana le holimo ho lekana ho etsa hore protrusion e qhibilihe pele e petsoha.Khatello ea welding le nako li lokisoa ho laola ho robeha ha maqhubu.Khatello ea welding le nako le tsona li ipapisitse le bump geometry.Khatello e phatlohileng e tla fokotsa mefokolo ea weld pele le ka mor'a ho tjheseletsa.

Tšebeliso e Sireletsehileng ea Koporo ea Beryllium

Joalo ka lisebelisoa tse ngata tsa indasteri, koporo ea beryllium ke kotsi ea bophelo bo botle ha e sebetsoa ka mokhoa o sa lokelang.Koporo ea Beryllium e sireletsehile ka ho feletseng ka mokhoa oa eona o tloaelehileng o tiileng, likarolong tse phethiloeng, le mesebetsing e mengata ea tlhahiso.Leha ho le joalo, karolong e nyenyane ea batho ka bomong, ho hema ka likaroloana tse ntle ho ka lebisa maemong a mabe a matšoafo.Ho sebelisa litsamaiso tse bonolo tsa boenjiniere, joalo ka ts'ebetso ea ho kenya moea e hlahisang lerōle le letle, ho ka fokotsa kotsi.

Hobane ho qhibiliha ha welding ho nyane haholo ebile ha hoa buleha, ha ho na kotsi e khethehileng ha ts'ebetso ea welding ea koporo ea beryllium e laoloa.Haeba ts'ebetso ea ho hloekisa ka mechine e hlokahalang ka mor'a ho soasoa, e tlameha ho etsoa ka ho pepesa mosebetsi sebakeng se setle sa likaroloana.


Nako ea poso: Apr-22-2022