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%) .Beryllium koporo 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 tlaase 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 beryllium koporo 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 tse amanang le lehlakoreng la koporo la beryllium.Lisebelisoa tsa electrode tse amanang le koporo ea beryllium li lokela ho ba le conductivity e phahameng ho feta workpiece, elektrode 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 bothata ba ho leka-lekanya mocheso o ka khonehang.
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 pole tsa 2, 3, le 4;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 sebelisoa hang-hang 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.