Malebela a Bohlokwa bakeng sa Welding Cracked Cast Aron Exhaust Manifolds

Lisebelisoa tsa ho tjheseletsa tšepe tse entsoeng ka tšepe li ka ba tse qhekellang ka lebaka la hokhabone e ngata ka tšepe ea tšepe, e etsang hore e be brittle, haholo-holo nakong ea ts'ebetso ea welding. Ha u sebetsa le li-balancers tsa harmonic tsa ts'ebetso, ho kenella ka mokhoa o feteletseng oa weld ho ka hula carbon ka har'a weld, ho theha matheba a fokolang. Ho thibela ho petsoha ka bobeliho kenya ka makhetlo a mangata le ho ntša metsi ka bongata, li-welders li tlameha ho boloka ductility. Ningbo Werkwell, morekisi ea tšepahalang oa likarolo tsa likoloi, o netefatsa boleng ba sehlahisoa se seng le se seng, ho kenyeletsoa.mefuta e mengata ea mouoane oa metsing.

Mathata a ho Welding Cast Aron Exhaust Manifolds

Mehato e mengata ea ho ntša tšepe e entsoeng ka tšepe e hlahisa liphephetso tse ikhethang tse hlokang moralo o hlokolosi le ts'ebetso. Ho utloisisa mathata ana ho ka thusa li-welders ho fumana litholoana tse ntle le ho qoba maraba a tloaelehileng.

Brittleness le High Carbon Content

Ho senyeha ha tšepe ea cast ho bakoa ke eonakhabone e ngata, eo hangata e leng lipakeng tsa 2% le 4%. Sebopeho sena se etsa hore thepa e tloaelehe ho phunyeha nakong ea welding. Ho futhumatsa ka potlako le ho tsidifala ho ka mpefatsa bothata, ho baka kabo e sa lekaneng ya mocheso le ho baka dibaka tse thata, tse robehang sebakeng sa weld. Libaka tsena li ka 'na tsa hlōleha ho sebetsa tlas'a khatello ea kelello. Ho fokotsa likotsi tsena, li-welders li tlameha ho sebelisa mekhoa e laolang mocheso le ho fokotsa mocheso oa mocheso.

1. Khabone e phahameng e eketsa monyetla oa ho phatloha nakong ea ts'ebetso ea welding.
2. Liphetoho tse potlakileng tsa mocheso li ka lebisa ho li-welds tse fokolang le tšenyo e eketsehileng.

Ho feta moo, ho falla ha k'habone nakong ea pholileng ho ka thatafatsa weld, ho etsa hore e fokotsehe. Ke ka lebaka lena ho khetha thepa e nepahetseng ea ho tlatsa lemokhoa oa ho cheselletsake ea bohlokoa.

Kutloelo-bohloko ea Mocheso le Kotsi ea ho Phahamisa ho Feta

Cast iron's low thermal conductivity e etsa hore e amehe ha mocheso o fetoha. Ho futhumatsa ho sa lekaneng ho ka baka khatello ea mocheso, e lebisang ho mapetsong a macha kapa ho mpefatsa tse teng. Hangata li-welders li futhumatsa hangata ho fokotsa kotsi ena. Preheating e netefatsa mocheso o ts'oanang haholoanyane, o thusang ho thibela ho atoloha kapa ho fokotseha ka tšohanyetso nakong ea welding. Ho phomola butle ka mor'a ts'ebetso ho bohlokoa ka ho lekana ho qoba ho hlahisa lintlha tse ncha tsa khatello ea maikutlo.

Mathata a tloaelehileng a kenyelletsa:

• Ho laola khatello ea mochesoka katleho.
• Ho kenya ts'ebetsong mekhoa e nepahetseng ea ho pholisa ho thibela ho phunyeha.
• Ho sebetsana le tšenyo e sa lebelloang nakong ea tokiso.

Ho Khetha Mokhoa o Nepahetseng oa Welding

Ho khetha mokhoa o nepahetseng oa tjheseletsa ho itšetlehile ka mofuta oa tšepe ea tšepe le litlhoko tse khethehileng tsa ho lokisa. Ka mohlala, tšepe ea tšepe e bohlooho e hloka ho futhumala butle le li-electrode tsa nickel, ha tšepe ea nodular cast e rua molemo ka ho futhumatsa pele ho nako. Li-welders li boetse li lokela ho nahana ka lintlha tsa tikoloho, tse kang ho pepesehela likhase tse chesang, tse ka amang ho tšoarella ha weld.

Ningbo Werkwell, moetsi ea khethehileng oa boenjiniere ba mechini, o totobatsa boleng ba likarolo tsa eona tsa likoloi. Bohlale ba bona bo netefatsa lihlahisoa tse tšepahalang, ho kenyelletsa le mefuta e mengata ea ho qeta, e ruang molemo mekhoeng le lisebelisoa tse tsoetseng pele. Boitlamo ba Werkwell ba boleng bo tsoa ho sehlopha sa bona sa QC se nang le boiphihlelo, se okametseng mohato o mong le o mong, ho tloha ho shoe cast ho isa ho chrome plating.

Ka ho utloisisa liphephetso tsena le ho khetha mokhoa o nepahetseng, li-welders li ka ntlafatsa menyetla ea bona ea katleho ha li sebetsa ka mefuta e mengata ea ho ntša tšepe.

Ho Lokisetsa Exhaust Manifold bakeng sa Welding

Ho Hloekisa Sebaka le ho Tlosa Litšila

Pele o qala mosebetsi ofe kapa ofe oa ho tjheseletsa,ho hloekisa mokelikeli o mongatae bohlokoa. Sebaka se litšila se ka fokolisa weld mme sa lebisa ho hloleheng. Latela mehato ena ho lokisa sebaka hantle:

1. Bevel the Crack: Sebelisa grinder ho etsa groove e bōpehileng joaloka V haufi le petso. Groove ena e lumella thepa ea ho tlatsa hore e kopane ka katleho.
2. Hloekisa Tšepe ea ho Lahlela: Tlosa litšila tsohle, oli le tšepe ea khale holimo. Sebaka se lokela ho shebahala se benya ebile se boreleli pele se tsoela pele.
3. Preheat Manifold: Sebelisa toche ho futhumatsa manifold hanyenyane. Mohato ona o thusa ho thibela ts'oaetso ea mocheso nakong ea ts'ebetso ea welding.

Sebaka se hloekileng se tiisa hore ho na le weld e matla le e tšoarellang, e leng ntho ea bohlokoa ha ho lokisoa mochine oa ho tjheseletsa oa tšepe ea tšepe e mengata.

Ho cheka masoba ho thibela ho ata ha Crack

Ho phunya masoba a manyenyane lipheletsong tsa lepetso ke tsela e bonolo empa e sebetsang ea ho thibela hore e se ke ea ata. Likoti tsena li sebetsa joalo ka "li-crack stoppers," li fokotsa khatello ea maikutlo lintlheng tsa crack. Sebelisa boro e kholoanyane ho feta bophara ba crack, 'me u netefatse hore masoba a hloekile ebile a boreleli. Mohato ona o bohlokoa haholo bakeng sa lisebelisoa tse brittle joalo ka tšepe ea tšepe, kaha e fokotsa kotsi ea tšenyo e eketsehileng nakong ea welding.

Ho Apara Crack bakeng sa ho Kena ha Weld ho Molemo

Ho apesa crack ho kopanyelletsa ho bopa le ho rereletsa mathoko a eona ho ntlafatsa ho kenella ha chese. Ka mor'a ho betola lepetso, sebelisa faele kapa grinder ho tlosa likarolo tse hlabang kapa tse sa tloaelehang. Ts'ebetso ena e etsa hore ho be le seaparo se ts'oanang bakeng sa lisebelisoa tsa ho tlatsa ho khomarela, ho fella ka tlamo e matla. Ho apara hantle ho boetse ho fokotsa menyetla ea porosity ka weld, e ka fokolisang ho lokisoa.

Ho futhumatsa Manifold ho Fokotsa Khatello ea Mocheso

Preheating exhaust manifolde bohlokoa bakeng sa ho fokotsa khatello ea mocheso nakong ea welding. Cast iron e na le kutloelo-bohloko haholo ha mocheso o fetoha, 'me ho futhumatsa kapa ho tsidifala ka tšohanyetso ho ka baka mapetsong. Mocheso o khothalelitsoeng oa ho futhumatsa pele o pakeng tsa 200°C le 400°C (400°F le 750°F). Sebelisa toche ea propane kapa ontong ho futhumatsa mefuta e mengata ka ho lekana. Ho boloka mocheso ona nakong eohle ea ts'ebetso ea welding ho tiisa liphello tse molemo le ho fokotsa kotsi ea ho thehoa ha mapetsong a macha.

Ningbo Werkwell, moetsi ea khethehileng oa boenjiniere ba mechini, o totobatsa boleng ba likarolo tsa eona tsa likoloi. Ho tloha ka 2015, k'hamphani e thehile mohala o felletseng oa lihlahisoa bakeng sa likarolo tsa kahare tsa koloi. Sehlopha sa bona sa QC se nang le boiphihlelo se netefatsa boleng ba maemo a holimo, ho tloha ho shoe casting ho ea ho chrome plating. Boitlamo bona ba bokhabane bo etsa hore Werkwell e be lebitso le tšepahalang indastering.

Mekhoa ea ho Welding bakeng sa Mehaho e Mengata ea ho Felisa Tšepe

Preheated Welding Method

Preheating ke e 'ngoe ea litsela tse sebetsang ka ho fetisisa tsa ho cheseletsa amosi oa tšepe o entsoeng ka bongata. Ka ho futhumatsa mefuta e mengata mocheso o pakeng tsa 500 ° F le 1200 ° F, li-welders li ka fokotsa khatello ea mocheso le ho thibela mapetsong. Mocheso o lokela ho sebelisoa butle-butle le ka ho lekana ho pholletsa le samente eohle ho qoba katoloso e sa lekaneng. Ho futhumatsa hapee fokotsa ho thehoa ha mehaho e thata, e brittlesebakeng se cheselletsang 'me se lumella k'habone hore e kene ka har'a tšepe ea motheo. Mokhoa ona o imolla khatello ea kelello ea ka hare, e etsa hore tokiso e tšoarelle haholoanyane 'me e se ke ea senyeha habonolo.

Keletso: Kamehla beha leihlo mocheso ka hloko nakong ea preheating ho netefatsa liphetho tse tsitsitseng.

Non-Preheated Welding Method

Non-preheated welding ke mokhoa o mong, empa o tla le likotsi. Ntle le ho futhumatsa pele, mefuta e mengata e lula e pholile, hangata e ka bang 100 ° F. Sena se ka lebisa ho pholiso e potlakileng ka mor'a ho cheselletsa, ho eketsa brittleness le monyetla oa ho phatloha. Kabo e sa lekaneng ea mocheso e ka boela ea etsa hore meaho e thata, e brittle e thehoe sebakeng sa weld. Li-welders tse sebelisang mokhoa ona li tlameha ho sebetsa ka hloko ho fokotsa khatello ea maikutlo le ho qoba ho falla ha carbon, e leng se ka fokolisang ho lokisoa.

• Likotsi tsa ho tjheseletsa ha preheated:
  • Monyetla o moholo oa ho petsoha ka lebaka la ho phola ka potlako.
  • Kabo e sa lekaneng ea mocheso e bakang mefokolo ea sebopeho.
  • Keketseho ea khatello ea maikutlo le ho khopama ka hare.

Ho Sebelisa Lithupa Tsa Nickel Bakeng sa Liphetho Tse Molemo

Lithupa tsa nickel ke khetho e tsebahalang bakeng sa ho tjheseletsa metsu ea tšepe e entsoeng ka tšepe. Lintho tsa bona tse phahameng tsa nickel li etsa hore ba tšoarele haholoanyane nakong ea ts'ebetso ea ho cheselletsa. Lithupa tsena li ka otloloha ha chesello e pholile, ho lumellana le litekanyetso tse fapaneng tsa ho honyela ha tšepe e entsoeng ka tšepe le tšepe. Ho feto-fetoha ha maemo ho fokotsa kotsi ea ho senya le ho tiisa maqhama a matla. Lithupa tsa nickel li boetse li sebetsana hantle le ho falla ha carbon, ho etsa hore e be tse loketseng bakeng sa ho finyella tokiso e tšoarellang.

Hlokomela: Khetha kamehlalithupa tsa nickel tsa boleng bo holimobakeng sa liphetho tse ntle. Li na le matsete a tsona bakeng sa litokiso tsa bohlokoa.

Mohato ka Mohato Litaelo tsa ho Welding

1. Lokisetsa Mekhabiso e Mengata: Hloekisa sebaka se senyehileng hantle, beve lepetso ho etsa V-groove, 'me u chese manifold haeba u sebelisa mokhoa o futhumetseng.
2. Sebelisa Lisebelisoa tsa ho Tlatsa: Sebelisa molamu oa nickel kapa silevera ea solder. Apesa petso ka flux, beha filler ka ho lekana, 'me u netefatse hore e khomarela hantle.
3. Fokotsa Manifold Butle-butle: Lumella mefuta e mengata hore e pholile butle-butle ho thibela ho tsosoa ha mocheso le ho phatloha.
4. Hlahloba Tokiso: Tlosa phallo leha e le efe e setseng 'me u hlahlobe weld bakeng sa matla le ho tšoarella.

Ningbo Werkwell, moetsi ea khethehileng oa boenjiniere ba mechini, o totobatsa boleng ba likarolo tsa eona tsa likoloi. Ho tloha ka 2015, k'hamphani e fane ka mohala o felletseng oa sehlahisoa bakeng sa likarolo tsa kahare tsa koloi. Sehlopha sa bona sa QC se nang le boiphihlelo se netefatsa boleng ba maemo a holimo, ho tloha ho shoe casting ho ea ho chrome plating. Boitlamo bona ba bokhabane bo etsa hore Werkwell e be lebitso le ts'eptjoang bakeng sa lihlahisoa tse ts'epahalang joalo ka mehatla e mengata.

Tlhokomelo le Tlhahlobo ea Kamor'a Welding

Ho Ikokobetsa ho Fokotsa Khatello ea Maikutlo

Peening ke mohato oa bohlokoa ka mor'a ho tjheseletsa melumo e mengata ea mosi oa tšepe. E thusa ho imolla khatello ea kelello libakeng tse cheselitsoeng, ho fokotsa menyetla ea ho petsoha ha thepa e pholile. Ts'ebetso ena e kenyelletsa ho otla bokaholimo ba weld ha bo ntse bo futhumetse.Ho sebelisoa hamore ea bolo peen hangataka morero ona. Ka ho tlanya bokaholimo ka bonolo, li-welders li ka hatella thepa, e thusang ho aba khatello ea maikutlo ka mokhoa o ts'oanang.

Keletso: E lumellane le matla a sebelisoang nakong ea ho phunya ho qoba ho theha matheba a fokolang.

Peening ha e matlafatse weld feela empa hape e tiisa hore tokiso e tšoarella nako e telele. Ke mokhoa o bonolo empa o sebetsa oa ho ntlafatsa ho tšoarella ha mefuta e mengata.

Ho Pholisa butle ho Thibela ho Petsoha

Ho pholisa manifold butle ka mor'a ho cheselletsa ho bohlokoa joalo ka ha cheseletso ka boeona. Ho pholisa ka potlako ho ka hlahisa khatello ea mocheso, e lebisang ho mapetsong kapa ho soahlamana. Ho thibela sena, li-welders li lokela ho lumella mefuta e mengata hore e pholile butle-butle. Ho koahela sebaka sa mosebetsi ka thepa e sireletsang, joaloka kobo ea ho cheselletsa, ho thusa ho boloka mocheso le ho etsa bonnete ba hore ho bata le ho feta. Ho sireletsa mefuta e mengata moeeng kapa lithakong le hona ho bohlokoa, kaha ho pholisa ho sa tšoaneng ho ka senya tokiso.

Hlokomela: Ho pholile butle ho bohlokoa haholo bakeng sa tšepe e entsoeng ka tšepe ka lebaka la kutloisiso ea eona ho liphetoho tsa mocheso.

Ka ho nka mehato ena ea ho itšireletsa, li-welders li ka qoba ho etsolla mosebetsi oa tsona o boima le ho etsa bonnete ba hore mefuta e mengata e lula e tiile.

Ho hlahloba Weld bakeng sa ho tšoarella le matla

Hang ha mefuta e mengata e se e pholile, ho hlahloba weld ke mohato oa ho qetela. Sheba mapetsong leha e le afe a bonahalang, porosity, kapa matheba a fokolang. Khalase e hōlisang lintho e ka thusa ho lemoha mefokolo e menyenyane. Haeba weld e bonahala e sa lekana kapa e brittle, ho ka 'na ha hlokahala hore ho lokisoe ho eketsehileng. Ho hlahloba mefuta e mengata tlas'a khatello e khanyang ho ka boela ha tiisa matla a eona. Tlhahlobo e phethahetseng e netefatsa hore tokiso e ka tšeptjoa ebile e loketse ho sebelisoa.

Ningbo Werkwell ke moetsi ea ikhethileng le morekisi kantle ho boenjiniere ba mechini. Mosebetsi oa mantlha oa k'hamphani ke ho fana ka likarolo tsa likoloi le li-fasteners. Ho tloha 2015, Werkwell e fane ka mohala o felletseng oa sehlahisoa bakeng sa likarolo tsa kahare tsa koloi. Sehlopha sa bona sa QC se nang le boiphihlelo se netefatsa boleng ba maemo a holimo, ho tloha ho ho lahla le ho bopa ente ho isa ho chrome plating. Boitlamo bona ba bokhabane bo etsa hore Werkwell e be lebitso le tšepahalang indastering.

Mekhoa e mengata ea ho ntša tšepe e entsoeng ka tšepe e hloka ho lokisoa, mekhoa e nepahetseng le tlhokomelo ea ka mor'a ho tjheseletsa. Mehato ea bohlokoa e kenyelletsamapetsong a beveling, ho hloekisa bokaholimo, le ho futhumatsa pele ho thibela mocheso oa mocheso.Ho qoba liphoso tse kang tsamaiso e mpe ea mochesoe netefatsa ho tšoarella. Ho latela mekhoa e metle ho ntlafatsa ts'ebetso le bophelo bo bolelele. Ningbo Werkwell, morekisi ea tšepahalang, o tiisa likarolo tsa koloi tsa boleng bo holimo ka lits'ebetso tsa litsebi tsa QC ho tloha 2015.

LBH

Ke eng e etsang hore mefuta e mengata ea mosi oa tšepe ea welding e be thata hakaale?

Bofokoli ba tšepe ea cast le lintho tse ngata tsa khabone li etsa hore e tloaelehe ho petsoha. Ho futhumatsa kapa ho pholisa ho sa lekaneng ho eketsa khatello ea maikutlo, ho eketsa bothata ba ho fumana tokiso e tšoarellang.

A na nka tjheseletsa tšepe e entsoeng ka tšepe e ngata ntle le ho futhumatsa pele?

E, empa ho kotsi. Li-welding tse sa chesehang li eketsa menyetla ea ho phatloha ka lebaka la ho pholile ka potlako. Preheating e tiisa esita le kabo ea mocheso le ho fokotsa khatello ea mocheso.

Hobaneng Ningbo Werkwell e le lebitso le tšepahalang likarolong tsa likoloi?

Ningbo Werkwell o ipabola ka boenjiniere ba mechini le likarolo tsa likoloi. Ho tloha ka 2015, sehlopha sa bona sa QC se nang le boiphihlelo se netefalitse boleng ba maemo a holimo, ho tloha ho shoe cast ho isa ho chrome plating.