ImiQathango esibhozo yokuWelding yentsimbi

1. I-Chromium insimbi engenasici ine-corrosion resistance (i-oxidizing acids, i-organic acids, i-cavitation), ukumelana nobushushu, kunye nokumelana nokunxiba. Ngokuqhelekileyo isetyenziselwa izixhobo zezixhobo ezifana nezityalo zamandla, iikhemikhali, kunye nepetroleum. I-Chromium insimbi engenasici ine-weldability embi, kwaye ingqalelo kufuneka ihlawulwe kwiinkqubo ze-welding, iimeko zonyango lobushushu, njl.

2. I-Chromium 13 insimbi engenasici inokuqina okuphezulu kwe-weld kwaye ithanda ukuqhekeka. Ukuba uhlobo olufanayo lwe-chromium yentsimbi yokuwelda intsimbi (G202, G207) isetyenziselwa ukuwelda, i-preheating kwi-300 ℃ okanye ngaphezulu kunye nonyango olucothayo lokupholisa malunga ne-700 ℃ emva kwe-welding kufuneka lwenziwe. Ukuba iindawo ezidityanisiweyo azikwazi ukufumana unyango lwe-post weld heat, i-chromium nickel ye-stainless steel welding rods (A107, A207) kufuneka isetyenziswe.

3. I-Chromium 17 insimbi engenasici ine-weldability engcono kune-chromium ye-13 yensimbi engenasici ngokudibanisa izinto ezifanelekileyo zokuzinzisa ezifana ne-Ti, i-Nb, i-Mo, njl. Xa usebenzisa uhlobo olufanayo lwentsimbi ye-chromium yokuwelda intsimbi (G302, G307), ukufudumeza nge-200 ℃ okanye ngaphezulu kunye nonyango olushushu malunga ne-800 ℃ emva kwe-welding kufuneka iqhutywe. Ukuba iindawo ezidibeneyo azikwazi ukufumana unyango olushushu, i-chromium nickel ye-stainless steel welding rods (A107, A207) kufuneka isetyenziswe.

Ngexesha le-welding ye-chromium nickel yensimbi engenasici, ukufudumeza okuphindaphindiweyo kunokunyusa i-carbides, ukunciphisa ukuxhathisa ukubola kunye neempawu zomatshini.

5. Intsimbi ye-nickel ye-Chromium yokuwelda intsimbi inokumelana kakuhle nokugqwala kunye nokumelana ne-oxidation, kwaye isetyenziswa ngokubanzi kwimichiza, isichumisi, i-petroleum, kunye nokwenziwa koomatshini bezonyango.

6. I-Chromium nickel i-coating yensimbi engenasici ine-titanium calcium uhlobo kunye nohlobo oluphantsi lwe-hydrogen. Uhlobo lwe-Titanium calcium lunokusetyenziselwa zombini i-AC kunye ne-DC welding, kodwa ubunzulu bokunyibilika abunzulu ngexesha le-AC ye-welding kwaye ithanda ukuba bomvu. Ke ngoko, unikezelo lombane lweDC kufuneka lusetyenziswe kangangoko kunokwenzeka. I-diameter 4.0 nangaphantsi ingasetyenziselwa yonke indawo ye-welding, ngelixa i-diameter ye-5.0 nangaphezulu ingasetyenziselwa i-flat welding kunye ne-fillet welding.

7. Iintsimbi ze-welding kufuneka zigcinwe zomile ngexesha lokusetyenziswa. Uhlobo lwe-Titanium calcium kufuneka lomiswe kwi-150 ℃ ngeyure eyi-1, kwaye uhlobo oluphantsi lwe-hydrogen kufuneka lomiswe kwi-200-250 ℃ ngeyure eli-1 (ukomisa ngokuphindaphindiweyo akuvumelekanga, ngaphandle koko ukugquma kuxhomekeke ekuqhekekeni kunye nokukhupha), ukukhusela ukugquma. intonga ye-welding ukusuka kwioli yokunamathela kunye nolunye ukungcola, ukuze unganyusi umxholo wekhabhoni we-weld kwaye uchaphazele umgangatho wecandelo elidibeneyo.

Ukuthintela i-inter-granular corrosion ebangelwa ukufudumeza, i-welding current ayifanele ibe phezulu kakhulu, malunga ne-20% ngaphantsi kwe-carbon steel welding rods. I-arc ayifanele ibe yinde kakhulu, kwaye i-inter-layer kufuneka ipholile ngokukhawuleza. Amaso eweld emxinwa akhethwayo.