Tsamaisong ea ts'ebetso ea motlakase ea motlakase, Welding ke ts'ebetso ea bohlokoa haholo. Boleng ba ho hlapaola ka kotloloho bo ama ka kotloloho boleng ba tlhahiso ea tora. Ka hona, hoa hlokahala ho utloisisa lisosa tsa litsitso tsa litsitso le mehato e fapaneng ea thibelo.
1. Hole ea moea le slag kenyelletso
(2) Harm of blowholes: blowholes reduce the effective sectional area of the weld and loosen the weld, thus reducing the strength and plasticity of the joint and causing leakage. Ho bata ho boetse ke lebaka le etsang hore khatello ea maikutlo e be khatello ea maikutlo. Fydrogen pefo ea hydrogen le eona e ka kenya letsoho ho batang.
Mehato ea thibelo:
a. Tlosa letheba la oli, mafome, metsi le sundters ho tloha terata ea ho jang, ho sebetsa hantle le bokaholimo ba eona.
b. Alkaline Welding Rods le litefo li tla sebelisoa le ho omisoa ka botlalo.
c. Khokahano ea DC Reverse le khuts'oane ea arc e khuts'oane e tla nkuoa.
D.preheat pele u palama lebelo la ho fokotsa lebelo la ho pholile.
E. Svalding e tla etsoa ka litlhaloso tse matla.
Crackle
Mehato ea ho thibela mapetso a kristale:
a. Reduce the content of harmful elements such as sulfur and phosphorus, and weld with materials with low carbon content.
b. Lintho tse ling tse alimiloeng li eketsoa ho fokotsa likristara tsa colurtal le khethollo. Mohlala, aluminium le tšepe li ka hloekisa lithollo.
c. The weld with shallow penetration shall be used to improve the heat dissipation condition so that the low melting point material floats on the weld surface and does not exist in the weld.
d. Litlhaloso tse ngata li tla khethoa ka nepo, 'me ho nka karolo ho tla amoheloa ho fokotsa sekhahla sa ho futhumatsa.
e. Ho amohela tatellano ea kopano e bohlokoa ho fokotsa khatello ea maikutlo.
Mehato ea ho thibela mapetso a netefatsang:
a. Ela hloko le molemong oa matlafatso ea likarolo tsa tšepe le tšusumetso ea tsona ho fumana mapetso a bopehileng.
b. U ikemiselitse ho laola kapa ho sebelisa nako ea ho laola sekhahla sa ho pholile.
c. Fokotsa khatello ea maikutlo e setseng ho qoba khatello ea maikutlo.
d. Nakong ea ho futhumatsa, qoba sebaka se tebileng sa ho iphumanela mapetso kapa khutsufatsa nako ea ho lula sebakeng sena.
Mehato ea ho thibela mapetso a batang:
a. Mofuta o tlase oa hydrojene oa alkana
b. The preheating temperature shall be increased, the post heating measures shall be taken, and the interpass temperature shall not be less than the preheating temperature. The reasonable welding specification shall be selected to avoid brittle and hard structures in the weld.
c. Khetha tatellano e makatsang ea ho fokotsa ho fokola ha Defmation le ho sebelisa khatello ea maikutlo.
d. Thibelo ea Hydrogen Elisoution Heat kalafo ka mor'a ho tšoarela
Nako ea poso: nov-08-2022