Lintlha tse kotsi tsa thepa ea ho cheselletsa
(1) Ntho e ka sehloohong ea ho etsa lipatlisiso mabapi le bohloeki ba mosebetsi oa ho tjheseletsa ke fusion welding, 'me har'a bona, mathata a bohloeki ba mosebetsi oa ho tjheseletsa arc ke a maholo ka ho fetisisa,' me mathata a ho tjheseletsa ha arc le electroslag ke a manyenyane haholo.
(2) Lintlha tse ka sehloohong tse kotsi tsa li-electrode manual arc welding, carbon arc gouging le CO2 gas shielded welding ke mosi le lerōle le hlahisoang nakong ea ts'ebetso ea ho cheselletsa - mosi oa welding. Haholo-holo electrode manual arc welding. Le carbon arc gouging, haeba ts'ebetso ea tjheseletsa e etsoa sebakeng se moqotetsane sa ho sebetsa (boiler, cabin ea sekepe, setshelo se sa keneleng moea le pipeline, joalo-joalo) ka nako e telele, 'me tabeng ea ts'ireletso e fokolang ea likhoerekhoere, e tla baka kotsi ho tsamaiso ea ho hema, joalo-joalo ba tšoeroeng ke tjheseletsa pneumoconiosis.
(3) Khase e chefo ke ntho e ka sehloohong e kotsi ea ho cheselletsa motlakase oa khase le plasma arc welding, 'me ha khatello e batla e phahame, e tla baka matšoao a chefo. Haholo-holo, ozone le nitrogen oxides li hlahisoa ke mahlaseli a mocheso a phahameng a arc a sebetsang ka oksijene le naetrojene moeeng.
(4) Mahlaseli a mahlaseli ke ntho e tloaelehileng e kotsi bakeng sa bohle ba bulehileng arc welding, 'me lefu la mahlo la electro-optic le bakoang ke lona ke lefu le khethehileng la mosebetsi la ho tjheseletsa ha arc e bulehileng. Mahlaseli a Arc a ka boela a senya letlalo, a etsa hore li-welders li hlokofatsoe ke mafu a letlalo a kang dermatitis, erythema le li-blisters tse nyenyane. Ho phaella moo, likhoele tsa k'hothone li senyehile.
(5) Tungsten argon arc welding le plasma arc welding, hobane mochine oa ho tjheseletsa o na le oscillator ea maqhubu a phahameng ho thusa ho qala arc, ho na le lintlha tse kotsi - tšimo e phahameng ea maqhubu a motlakase, haholo-holo mochine oa ho tjheseletsa o nang le nako e telele ea ho sebetsa. ea "high-frequency oscillator" (joalo ka Mechini e meng ea fektheri e entsoeng ka argon arc). Libaka tse phahameng tsa maqhubu a motlakase li ka etsa hore li-welders li hlokofatsoe ke mafu a tsamaiso ea methapo le tsamaiso ea mali.
Ka lebaka la tšebeliso ea li-electrode tsa thoriated tungsten rod, thorium ke ntho e nang le mahlaseli a kotsi, kahoo ho na le lintlha tse kotsi tsa mahlaseli (α, β le γ mahlaseli), 'me e ka baka likotsi tsa mahlaseli a kotsi ho pota-pota grinder moo molamu oa tungsten o bolokiloeng le ho leotsoa. .
(6) Nakong ea ho chesoa ha plasma arc, ho fafatsa le ho itšeha, ho tla hlahisoa lerata le matla, le tla senya methapo ea kutlo ea welder haeba tšireletso e se ntle.
(7) Lintho tse ka sehloohong tse kotsi nakong ea ho cheselletsa ka khase ea litšepe tse se nang ferrous ke lerōle la oxide le entsoeng ke ho tsoa ha tšepe e qhibilihisitsoeng moeeng, le khase e chefo e tsoang ho phallo.
Sesebelisoa sa ho hloekisa mosi oa Xinfa welding se na le monko o matla le phello e ntle. Ho fumana lintlha, ka kopo sheba ho:https://www.xinfatools.com/welding-environmental-protection-equipment/
Litlhokomelo tsa ho sebelisa lisebelisoa tsa welding
1. Hangata ho na le mefuta e 'meli ea li-electrode tsa tšepe tse sa hloekang: mofuta oa titanium-calcium le mofuta o tlaase oa hydrogen. Motlakase oa ho tjheseletsa o sebelisa matla a DC ka hohle kamoo ho ka khonehang, e leng molemo ho hlōla bofubelu le ho kenella ho sa tebang ha molamu oa welding. Li-electrode tse nang le "titanium-calcium coating" ha li tšoanelehe bakeng sa ho cheselletsa maemo ohle, empa ke feela bakeng sa tjheseletsa e bataletseng le tjheseletsa e sephara; li-electrode tse nang le koae ea haedrojene e tlase li ka sebelisoa bakeng sa ho cheselletsa maemo ohle.
2. Li-electrode tsa tšepe tse sa hloekang li lokela ho bolokoa li omme nakong ea tšebeliso. E le ho thibela mefokolo e kang mapetsong, likoting le li-pores, lesela la mofuta oa titanium-calcium le omisoa ka mocheso oa 150-250 ° C bakeng sa hora e le 'ngoe pele ho chesoa,' me seaparo se tlaase sa hydrogen se omisitsoe ho 200-300 ° C bakeng sa 1 hora pele ho welding. U se ke ua omella khafetsa, ho seng joalo letlalo le tla oa habonolo.
3. Hloekisa motsoako oa welding, 'me u thibele molamu oa welding hore o se ke oa silafatsoa ka oli le litšila tse ling, e le hore o se ke oa eketsa carbon content ea weld le ho ama boleng ba ho cheselletsa.
4. E le ho thibela kutu ea intergranular e bakoang ke ho futhumala, hona joale welding ha ea lokela ho ba khōlō haholo, ka kakaretso hoo e ka bang 20% e tlase ho feta ea li-electrode tsa carbon steel, arc ha ea lokela ho ba nako e telele haholo, 'me li-interlayers li pholile ka potlako.
5. Ela hloko ha u qala arc, u se ke ua qala arc karolong e seng ea welding, ho molemo ho sebelisa poleiti ea ho qala ea arc ea thepa e tšoanang le ea weldment ho qala arc.
6. Li-welding tse khutšoanyane tsa arc li lokela ho sebelisoa ka hohle kamoo ho ka khonehang. Bolelele ba arc hangata ke 2-3mm. Haeba arc e le telele haholo, mapetsong a mocheso a tla hlaha habonolo.
7. Letlapa la lipalangoang: li-welding tse khutšoane tsa arc li lokela ho amoheloa, 'me ho sokela ka mahlakoreng hangata ha ho lumelloe. Sepheo ke ho fokotsa mocheso le bophara ba libaka tse amehang ke mocheso, ho ntlafatsa ho hanyetsa ha weld ho corrosion ea intergranular le ho fokotsa tšekamelo ea mapetsong a mocheso.
8. Ho chesoa ha litšepe tse sa tšoaneng ho lokela ho khetha ka hloko lithupa tsa welding ho thibela mapetsong a mocheso ho tloha ho khetho e sa lokelang ea lithupa tsa welding kapa pula ea σ phase ka mor'a phekolo ea mocheso o phahameng oa mocheso, e leng ho tla etsa hore tšepe e be e tsitsitseng. Sheba litekanyetso tsa khetho ea molamu oa ho tjheseletsa bakeng sa tšepe e sa hloekang le tšepe e sa tšoaneng bakeng sa khetho, 'me u sebelise mekhoa e nepahetseng ea ho cheselletsa.
Lisebelisoa tsa welding tsa Xinfa li na le boleng bo holimo, ka kopo sheba lintlha tse ling: https://www.xinfatools.com/welding-material/
Nako ea poso: May-08-2023
