Chidule cha ndondomeko yowotcherera zitsulo zosapanga dzimbiri

Awiri: ndondomeko kuwotcherera

Kusankhidwa kwa zitsulo zosapanga dzimbiri zowotcherera kuyenera kutsatira mfundo ya "homogeneity".

1. Ferritic zitsulo zosapanga dzimbiri Ngati njira yowotcherera imatenthedwa pa 430-480 ° C kwa nthawi yayitali ndikukhazikika pang'onopang'ono, zimakhala zosavuta kupanga 475 ° C brittleness, ndipo zonyansa zidzathandiza kwambiri. Njira yowotcherera imalimbikitsa kutsika kwaposachedwa, kuwotcherera mwachangu, kusasunthika, komanso kuwongolera kutentha kwapakati pamitundu yambiri. Kuti muwotchere zida zokhuthala, msoko wa weld uyenera kusunthidwa kuti muchepetse kupsinjika.

2. Martensitic zosapanga dzimbiri zitsulo kutentha anakhudzidwa zone embrittlement ndi kuwotcherera ming'alu ozizira ndi zofunika kupewa mmene kungathekere pamene kuwotcherera, ambiri kutenga preheating lolingana pamaso kuwotcherera (150-300 °C) ndi pambuyo kuwotcherera kutentha mankhwala (700-750 ° C) miyeso, kugwiritsa ntchito mphamvu zazikulu za mzere, ngati kuli kofunikira, mutha kusankha zida zowotcherera za austenitic.

3. Austenitic zitsulo zosapanga dzimbiri Zomwe zimakhudzidwa ndi kuphulika kotentha ndi kuwonongeka kwa intergranular ndizofunikira kwambiri pakuwotcherera chitsulo chosapanga dzimbiri chotere, potengera mawonekedwe ake, mphamvu yaying'ono yolumikizira iyenera kutengedwa pakuwotcherera, kuzirala mwachangu, komanso kutentha kwapakati. ziyenera kulamulidwa pamene multilayer kuwotcherera. Yesetsani kukhala ndi kuchuluka koyenera kwa ferrite mukawotcherera kuti mupewe ming'alu yotentha. M'makampani a petrochemical monga ma hydrogenation reactors ndi zinthu zina zenizeni, kuchuluka kwa ma ferrite (FN) a weld adanenedwa momveka bwino, nthawi zambiri amafunikira 3-10.

4. Austria-iron duplex zitsulo zosapanga dzimbiri zimakhala ndi chizolowezi chochepa chochepa poyerekeza ndi chitsulo cha austenitic; Poyerekeza ndi chitsulo ferritic, post-weld embrittlement ndi otsika, choncho ali weldability kwambiri, osati preheating kapena post-kutentha, ndipo palibe kuwotcherera ming'alu kwaiye. Komabe, potenthetsa kutentha kwambiri, pali chizolowezi chakuti mbewu zimakula, ndipo mphamvu yaing'ono ya mzere iyenera kutengedwa powotcherera.

5. Mpweya-wolimba zitsulo zosapanga dzimbiri Chifukwa cha kuuma kwakukulu, kulimba kosauka komanso pulasitiki yamtundu uwu wachitsulo, ndi kupanikizika kwakukulu kotsalira kotsalira, n'kosavuta kutulutsa ming'alu. Njira yowotcherera yofanana ndi chitsulo chosapanga dzimbiri cha martensitic ikulimbikitsidwa, koma kutentha kwa preheating kuyenera kuwonjezeredwa.

Zindikirani:The AWSA5.9 Standard for Stainless Steel Optical and Filler Wires ndi YB/T5092 Standard for Stainless Steel for Welding imati kusanthula kwamankhwala kwa zitsanzo zosungunuka za mawaya ophatikizika kapena opindika kapena mawaya odzaza ndiye kuyesa kokhako komwe kumafunikira pakugawika kwazinthuzi. mawonekedwe. Ndiko kuti, katundu wamakina ndi mayeso ena, malinga ndi zosowa za makasitomala.
Chitsulo chosapanga dzimbiri chamagetsi amtundu wa GES, chilembo chomaliza B mu dzina lazopanga chikuwonetsa malaya abuluu, R akuwonetsa malaya ofiira, monga GES-308R amayimira malaya ofiira GES-308, GES-312B amayimira chikopa cha buluu GES-312 .