15. Mosebetsi o ka sehloohong oa phofo ea welding ea khase ke ofe?
Mosebetsi o ka sehloohong oa phofo ea welding ke ho theha slag, e sebetsanang le li-oxide tsa tšepe kapa litšila tse seng tsa tšepe ka letamo le qhibilihisitsoeng ho hlahisa slag e qhibilihisitsoeng. Ka nako e tšoanang, letlapa le entsoeng ka ho qhibilihisoa le koahela bokaholimo ba letamo le entsoeng ka ho qhibilihisoa 'me le arola letamo le qhibilihisitsoeng moeeng, kahoo le thibela tšepe e entsoeng ka letamo hore e se ke ea e-ba oxidized ka mocheso o phahameng.
16. Mehato ea ts'ebetso ea ho thibela weld porosity ka letsoho la arc welding ke efe?
karabo:
(1) Molamu oa tjheseletsa le flux li lokela ho bolokoa li omme le ho omisoa ho latela melaoana pele li sebelisoa;
(2) Bokaholimo ba lithapo le litšepe li lokela ho bolokoa li hloekile li se na metsi, oli, mafome, joalo-joalo.
(3) Ka nepo khetha lintlha tsa tjheseletsa, joalo ka hona joale welding ha ea lokela ho ba kholo haholo, lebelo la tjheseletsa le lokela ho ba le loketseng, jj.;
(4) Sebelisa mekhoa e nepahetseng ea ho tjheseletsa, sebelisa li-electrode tsa alkaline bakeng sa welding ea arc ea letsoho, welding e khutšoanyane ea arc, fokotsa amplitude ea swing ea electrode, fokotsa lebelo la lipalangoang tsa molamu, laola arc e khutšoanyane ea arc ho qala le ho koala, joalo-joalo;
(5) Laola lekhalo la kopano ea li-wellds hore li se ke tsa ba kholo haholo;
(6) U se ke ua sebelisa li-electrode tseo liaparo tsa tsona li phatlohileng, li ebolotsoeng, li senyehile, li na le li-cores kapa tse nang le li-welding cores.
17. Mehato e ka sehloohong ea ho thibela matheba a masoeu ha u cheselletsa tšepe ea tšepe ke efe?
karabo:
(1) Sebelisa lithupa tse nang le graphitized welding, ke hore, sebelisa lithupa tsa tšepe tse entsoeng ka tšepe tse nang le likarolo tse ngata tsa graphitizing (joaloka k'habone, silicon, joalo-joalo) tse kentsoeng penteng kapa terata ea welding, kapa sebelisa nickel-based le koporo. lithupa tsa tšepe tse entsoeng ka tšepe;
(2) Preheat pele ho tjheseletsa, boloka mocheso nakong ea ho tjheseletsa, le ho lieha ho pholile ka mor'a ho cheselletsa ho fokotsa sekhahla sa ho pholile sa sebaka sa weld, ho eketsa nako eo sebaka sa fusion se le sebakeng se sefubelu se chesang, graphitize ka ho feletseng, le ho fokotsa khatello ea mocheso;
(3) Sebelisa mokhoa oa ho tiisa.
18. Hlalosa karolo ea flux ts'ebetsong ea welding?
Ho welding, flux ke eona ntho e ka sehloohong ho netefatsa boleng ba welding. E na le mesebetsi e latelang:
(1) Ka mor’a hore phallo e qhibilihe, e phaphamala holim’a tšepe e qhibilihisitsoeng ho sireletsa letamo le qhibilihisitsoeng le ho thibela khoholeho ke likhase tse kotsi tse moeeng.
(2) Flux e na le mesebetsi ea deoxidizing le alloying, 'me e sebelisana le terata ea welding ho fumana metsoako e hlokahalang ea lik'hemik'hale le thepa ea mochine oa tšepe ea weld.
(3) Etsa hore weld e thehoe hantle.
(4) Fokotsa lebelo la ho pholile ha tšepe e qhibilihisitsoeng le ho fokotsa likoli tse kang li-pores le li-slag inclusions.
(5) Thibela ho phatloha, fokotsa tahlehelo, 'me u ntlafatse coefficient ea welding.
19. Ke lintlha life tse lokelang ho eloa hloko ha u sebelisa le ho boloka mechine ea ho tjheseletsa ea AC arc?
(1) E lokela ho sebelisoa ho ea ka rated tjheseletsa hona joale le mojaro nako ea mochine tjheseletsa, 'me u se ke ua overload.
(2) Mochini oa welding ha o lumelloe ho khutsufatsoa ka nako e telele.
(3) Mokelikeli o laolang o lokela ho sebetsoa ntle le mojaro.
(4) Kamehla hlahloba likhokahano tsa terata, li-fuse, motheo, mekhoa ea ho lokisa, joalo-joalo 'me u netefatse hore li boemong bo botle.
(5) Boloka mochini oa tjheseletsa o hlwekile, o omme mme o na le moya ho thibela lerole le pula ho kena.
(6) E behe ka mokhoa o tsitsitseng 'me u khaole motlakase ka mor'a hore mosebetsi o phethoe.
(7) Mochini oa ho cheselletsa o tlameha ho hlahlojoa khafetsa.
20. Likotsi tsa ho robeha ha brittle ke life?
Karabo: Hobane brittle fracture e etsahala ka tšohanyetso 'me e ke ke ea fumanoa le ho thibeloa ka nako, hang ha e etsahala, liphello e tla ba tse tebileng haholo, eseng feela ho baka tahlehelo e kholo ea moruo, empa hape e beha bophelo ba batho kotsing. Ka hona, ho robeha ha brittle ea meaho e cheselitsoeng ke bothata bo lokelang ho nkoa ka botebo.
21. Litšobotsi le tšebeliso ea ho fafatsa ka lero la mali?
Karabo: Litšobotsi tsa ho fafatsa ka plasma ke hore mocheso oa lelakabe la plasma o phahame 'me o ka qhibilihisa hoo e batlang e le lisebelisoa tsohle tsa refractory, kahoo e ka fafatsoa holim'a mefuta e mengata ea lintho. Lebelo la lelakabe la plasma le phahame 'me phello ea ho potlakisa likaroloana e ntle, kahoo matla a ho kopanya a holimo a phahame. E na le mefuta e mengata ea ts'ebeliso mme ke eona tsela e molemohali ea ho fafatsa lisebelisoa tse fapaneng tsa ceramic.
22. Mokhoa oa ho lokisa karete ea ts'ebetso ea welding ke efe?
Karabo: Lenaneo la ho lokisa karete ea ts'ebetso ea welding le lokela ho fumana tlhahlobo e ts'oanang ea ts'ebetso ea welding e ipapisitseng le litšoantšo tsa kopano ea sehlahisoa, litšoantšo tse sebetsanang le likarolo le litlhoko tsa bona tsa tekheniki, le ho taka setšoantšo se kopantsoeng se nolofalitsoeng; nomoro ea karete ea ts'ebetso ea welding, nomoro ea ho taka, lebitso le kopaneng, Nomoro e kopaneng, nomoro ea ts'ebetso ea welding le lintho tsa setifikeiti sa welder;
Lokisetsa tatellano ea ho tjheseletsa ho ipapisitse le tlhahlobo ea ts'ebetso ea welding le maemo a sebele a tlhahiso, lintlha tsa tekheniki le boiphihlelo ba tlhahiso; lokisetsa litekanyetso tse itseng tsa ts'ebetso ea welding ho latela tlhahlobo ea ts'ebetso ea welding; etsa qeto ea setsi sa tlhahlobo ea lihlahisoa, mokhoa oa ho hlahloba, le karo-karolelano ea tlhahlobo ho latela litlhoko tsa setšoantšo sa sehlahisoa le maemo a sehlahisoa. .
23. Ke hobane'ng ha re lokela ho eketsa tekanyo e itseng ea silicon le manganese terata ea ho cheseletsa ea khase ea carbon dioxide e sirelelitsoeng?
Karabo: Carbon dioxide ke khase ea oxidizing. Nakong ea ts'ebetso ea welding, lisebelisoa tsa tšepe tsa welding li tla chesoa, ka hona li fokotsa haholo thepa ea mochini oa weld. Har'a bona, oxidation e tla baka li-pores le spatter. Kenya silicon le manganese terata ea welding. E na le phello ea deoxidizing mme e ka rarolla mathata a oxidation ea welding le spatter.
24. Moeli oa ho phatloha ha metsoako e tukang ke eng, ’me ke lintho life tse o amang?
Karabo: Letoto la mahloriso leo ho lona khase e tukang, mouoane kapa lerōle le nang le motsoako o tukang le ka hlahang le bitsoa moeli oa ho phatloha.
Moeli o ka tlaase oa mahloriso o bitsoa moeli o ka tlaase oa ho phatloha, 'me moeli o ka holimo oa mahloriso o bitsoa moeli o ka holimo oa ho phatloha. Moeli oa ho phatloha o angoa ke lintlha tse kang mocheso, khatello, litaba tsa oksijene, le bophara ba setshelo. Ha mocheso o eketseha, moeli oa ho phatloha o fokotseha; ha khatello e eketseha, moeli oa ho phatloha o boetse oa fokotseha; ha khatello ea oksijene ka khase e tsoakiloeng e eketseha, moeli o tlase oa ho phatloha o fokotseha. Bakeng sa lerōle le tukang, moeli oa eona oa ho phatloha o angoa ke lintlha tse kang ho hasana, mongobo le mocheso.
25. Ke mehato efe e lokelang ho nkoa ho thibela ho tsosoa ha motlakase ha ho chesetsoa ka har'a meropa ea boiler, li-condenser, litanka tsa oli, litanka tsa oli le lijana tse ling tsa tšepe?
Karabo: (1) Ha ba cheselletsa litšepe, litšepe li lokela ho qoba ho kopana le likarolo tsa tšepe, li eme holim’a meseme e sireletsang lirabara kapa li roale lieta tse sireletsang letlalo, ’me li apare liaparo tsa mosebetsi tse omeletseng.
(2) Ho lokela ho ba le mohlokomeli ka ntle ho sets'oants'o ea khonang ho bona le ho utloa mosebetsi oa welder, le switch ea ho khaola motlakase ho latela letšoao la mochini oa ho cheselletsa.
(3) Matla a mabone a seterateng a sebelisoang ka har'a linkho ha aa lokela ho feta 12 volts. Khetla ea transformer e nkehang habobebe e lokela ho theoa ka ts'epahalo, 'me li-autotransformers ha lia lumelloa ho sebelisoa.
(4) Li-transformer bakeng sa mabone a nkehang le li-welding transformer ha lia lumelloa ho kenngoa ka har'a li-boilers le lijana tsa tšepe.
26. U ka khetholla joang pakeng tsa welding le brazing? Litšobotsi tsa e mong le e mong ke life?
Karabo: Tšobotsi ea fusion welding ke tlamahano ea liathomo pakeng tsa likarolo tsa welding, ha brazing e sebelisa sebaka se bohareng se nang le ntlha e tlaase ea ho qhibiliha ho feta likarolo tsa welding - lisebelisoa tsa ho roala ho kopanya likarolo tsa welding.
Monyetla oa fusion welding ke hore thepa ea mochini ea motsoako o cheselitsoeng e phahame, 'me tlhahiso ha e kopanya likarolo tse teteaneng le tse kholo li phahame. Bothata ke hore khatello ea maikutlo le deformation e hlahisoang e kholo, 'me liphetoho tsa moralo li etsahala sebakeng se amehileng ke mocheso;
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)
Melemo ea brazing ke mocheso o tlase oa mocheso, o bataletseng, manonyeletso a boreleli, ponahalo e ntle, khatello e nyenyane le deformation. Mefokolo ea brazing ke matla a tlase a kopantsoeng le litlhoko tse phahameng tsa lekhalo la kopano nakong ea kopano.
27. Khase ea carbon dioxide le khase ea argon ka bobeli ke likhase tse sireletsang. Ka kopo hlalosa thepa le ts'ebeliso ea bona?
Karabo: Carbon dioxide ke khase ea oxidizing. Ha e sebelisoa e le khase e sireletsang sebakeng sa welding, e tla oxidize ka matla marotholi le tšepe ka letamong le entsoeng ka ho qhibilihisoa, ho baka tahlehelo e tukang ea likarolo tsa motsoako. Ts'ebetso e fokola, 'me li-pores le li-splashes tse kholo li tla hlahisoa.
Ka hona, e ka sebelisoa feela bakeng sa ho tjheseletsa tšepe e tlase ea k'habone le tšepe e tlase ea alloy hajoale, 'me ha e lokele ho tjheseletsa tšepe e phahameng ea alloy le litšepe tse se nang ferrous, haholo-holo bakeng sa tšepe e sa hloekang. Kaha e tla baka carbonization ea weld le ho fokotsa ho hanyetsa intercrystalline corrosion, e sebelisoa Fumana ka tlaase ho moo.
Argon ke khase e sa sebetseng. Hobane ha e sebetse ka lik'hemik'hale ka tšepe e qhibilihisitsoeng, motsoako oa lik'hemik'hale oa weld ha e le hantle ha o fetohe. Boleng ba weld ka mor'a ho cheselletsa bo botle. E ka sebelisoa ho tjheseletsa litšepe tse fapaneng tsa alloy, tšepe e sa hloekang le litšepe tse se nang ferrous. Hobane Theko ea argon e ntse e fokotseha butle-butle, kahoo e boetse e sebelisoa ka bongata bakeng sa ho cheselletsa tšepe e bonolo.
28. Hlalosa litšoaneleho tsa weldability le welding tsa tšepe ea 16Mn?
Karabo: tšepe ea 16Mn e thehiloe holim'a tšepe ea Q235A e nang le hoo e ka bang 1% Mn e ekelitsoeng, 'me e lekanang le carbon ke 0.345% ~ 0.491%. Ka hona, ts'ebetso ea welding e betere.
Leha ho le joalo, tšekamelo ea ho thatafatsa e kholo hanyane ho feta ea tšepe ea Q235A. Ha tjheseletsa e nang le likarolo tse nyane le weld e nyane e feta holim'a botenya bo boholo le sebopeho se seholo se thata, mapetsong a ka hlaha, haholo-holo ha ho cheselletsa tlas'a maemo a tlase a mocheso. Tabeng ena, mehato e loketseng e ka nkoa pele ho tjheseletsa. ho futhumatsa fatše.
Ha letsoho arc welding, sebelisa li-electrode tsa sehlopha sa E50; ha othomathike ka tlas'a metsi arc welding ha e hloke ho beveling, o ka sebelisa terata ea H08MnA e nang le flux 431; ha u bula li-bevel, sebelisa mohala oa ho tjheseletsa oa H10Mn2 o nang le flux 431; ha u sebelisa tjheseletsa e sirelelitsoeng ka khase ea CO2, sebelisa terata ea welding H08Mn2SiA Kapa H10MnSi.
Nako ea poso: Nov-06-2023
