Aluminium alloy welding e fapane haholo le ho tjheseletsa ha tšepe e akaretsang ea carbon, tšepe e sa hloekang le lisebelisoa tse ling. Ho bonolo ho hlahisa likoli tse ngata tseo lisebelisoa tse ling li se nang tsona, 'me mehato e lebisitsoeng e lokela ho nkoa ho e qoba. Ha re shebeng mathata ao ho leng bonolo ho etsahala ho tjheseletsa alloy alloy le litlhoko tsa theknoloji ea welding.
Mathata a ho kenya lisebelisoa tsa aluminium alloy Thermal conductivity ea lisebelisoa tsa alloy alloy ke 1 ho makhetlo a 3 ho feta a tšepe, 'me ho bonolo ho futhumatsa. Leha ho le joalo, thepa ena ha e hanyetsane le mocheso o phahameng 'me e na le coefficient e kholo ea katoloso ha e futhumala, e leng se bakang habonolo deformation ea welding. Ho feta moo, thepa ena e na le tšekamelo ea ho mapetsong le ho kenella ha weld nakong ea welding, haholo-holo ho tjheseletsa ha lipoleiti tse tšesaane tsa aluminium ho thata haholoanyane.
Thepa ea welding ea Xinfa e na le litšobotsi tsa boleng bo holimo le theko e tlase. Ho fumana lintlha, ka kopo etela:Baetsi ba Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Aluminium alloy welding e tla hlahisa palo e itseng ea haedrojene ka letamong le qhibilihisitsoeng. Haeba likhase tsena li sa tsoe pele ho cheseha ho thehoa, li tla baka li-pores ka har'a weld le ho ama boleng ba likarolo tse cheselitsoeng.
Aluminium ke tšepe e nang le oxidized habonolo, 'me ho batla ho se na aluminium e se nang oxidized moeeng. Ha bokaholimo ba motsoako oa aluminium bo pepesehile ka ho toba moeeng, filimi e teteaneng le e sa tsitsang ea aluminium oxide e tla theha holim'a eona. Filimi ea oxide e khona ho khathala ka mokhoa o fetelletseng le mocheso o phahameng haholo, 'me e na le sebaka se qhibilihang sa likhato tse fetang 2000 tsa Celsius. Ha e se e thehiloe, bothata bo latelang ba ts'ebetso bo tla eketseha haholo.
Aluminium alloy welding e boetse e na le mathata a kang lenonyeletso le bonolo ho nolofatsa, 'me tsitsipano ea holim'a naha e qhibilihisitsoeng e nyenyane ebile e bonolo ho hlahisa liphoso.
Litlhoko tsa ts'ebetso ea aluminium alloy welding
Pele ho tsohle, ho latela pono ea lisebelisoa tsa ho tjheseletsa, haeba ho sebelisoa mochini oa welding oa MIG/MAG, o tlameha ho ba le mesebetsi ea pulse joalo ka pulse e le 'ngoe kapa pulse habeli. Ts'ebetso ea pulse habeli e na le phello e ntle ka ho fetisisa. Double pulse ke superposition ea high-frequency pulse le low-frequency pulse, le low-frequency pulse e sebelisetsoa ho lekanyetsa lebelo le phahameng la maqhubu. Ka tsela ena, maqhubu a mabeli a mabeli a tsitsitse ka makhetlo a mangata a fokolang-frequency pulse nako le nako ho fetoha pakeng tsa tlhōrō ea hona joale le ea motheo, e le hore weld e thehe sekala sa litlhapi tse tloaelehileng.
Haeba u batla ho fetola phello ea sebopeho sa weld, u ka fetola lebelo le tlhoro ea boleng ba sekhahla se tlase sa maqhubu. Ho fetola lebelo le tlase-frequency pulse frequency ho tla ama lebelo la ho fetoha pakeng tsa boleng ba tlhōrō le boleng ba motheo oa maqhubu a mabeli a maqhubu, a tla fetola sebaka sa sekala sa tlhapi sa weld. Ha lebelo la ho fetoha le le leholo, sebaka se senyenyane sa sekala sa litlhapi se fokotseha. Ho fetola boleng ba tlhōrō ea lebelo le tlaase-frequency pulse ho ka fetola phello e susumetsang holim'a letamo le entsoeng ka ho qhibilihisoa, ka hona ho fetola botebo ba welding. Ho khetha boleng bo loketseng ba tlhōrō ho na le liphello tse hlakileng ho fokotsa ho hlahisa li-pores, ho fokotsa mocheso oa mocheso, ho thibela ho atoloha le ho senyeha, le ho ntlafatsa matla a weld.
Ntle le moo, ho latela pono ea ts'ebetso ea welding, lintlha tse latelang li lokela ho hlokomeloa:
Ntlha ea pele, bokaholimo ba motsoako oa aluminium bo lokela ho hloekisoa pele ho tjheseletsa, 'me lerōle lohle le oli li tlameha ho tlosoa. Acetone e ka sebelisoa ho hloekisa bokaholimo ba sebaka sa welding sa aluminium. Bakeng sa motsoako o teteaneng oa aluminium, o lokela ho hloekisoa ka borashe ba terata pele, ebe ka acetone.
Ea bobeli, lisebelisoa tsa terata tse sebelisoang li lokela ho ba haufi le lisebelisoa tsa motsoali ka hohle kamoo ho ka khonehang. Hore na ho khethoa terata ea aluminium ea silicon kapa terata ea aluminium ea aluminium e lokela ho khethoa ho latela litlhoko tsa weld. Ntle le moo, terata ea welding ea aluminium e ka sebelisoa feela ho cheselletsa lisebelisoa tsa aluminium tsa magnesium, athe terata ea aluminium ea silicon e sebelisoa haholo ho feta. E ka cheselletsa lisebelisoa tsa silicon ea aluminium le lisebelisoa tsa aluminium tsa magnesium.
Ea boraro, ha botenya ba poleiti bo le boholo, poleiti e lokela ho futhumatsoa esale pele, ho seng joalo ho bonolo ho e tšela. Ha ho koala arc, ho lokela ho sebelisoa motlakase o monyenyane ho koala arc le ho tlatsa sekoti.
Ea bone, ha ho etsoa welding ea tungsten inert gas arc welding, mochine oa ho tjheseletsa oa DC argon arc o lokela ho sebelisoa, 'me ho ea pele le ka morao AC le DC li lokela ho sebelisoa ka tsela e fapaneng. Forward DC e sebelisetsoa ho hloekisa hlobo e holim'a oxidation ea lisebelisoa tsa aluminium, 'me reverse DC e sebelisetsoa ho cheselletsa.
Hape hlokomela hore litlhaloso tsa ho tjheseletsa li lokela ho behoa ho ea ka botenya ba poleiti le litlhoko tsa weld; MIG e lokela ho sebelisa lebili le khethehileng la fepelo ea terata ea aluminium le tube ea tataiso ea terata ea Teflon, ho seng joalo ho tla etsoa lichifi tsa aluminium; thapo ea lithunya tsa tjheseletsa ha ea lokela ho ba telele haholo, kaha terata ea aluminium ea ho tjheseletsa e bonolo le mohala o molelele haholo oa sethunya o tla ama botsitso ba phepelo ea terata.
Nako ea poso: Aug-27-2024
