Cov teeb meem dab tsi tuaj yeem tshwm sim tom qab vuam txias- cov ntawv dov steel? Yuav daws lawv li cas?
Deformation, nce hardness nyob ze ntawm lub vuam, thiab nto oxidation thiab discoloration yuav tshwm sim tom qab vuam. Kev daws teeb meem: ① Siv qhov chaw vuam lossis argon arc vuam kom txo cov cua sov; ② Ua lub hauv paus annealing tom qab vuam los txo kev ntxhov siab; ③ Sib tsoo lub vuam thiab siv kev tiv thaiv xeb sai tom qab vuam.
Yuav ua li cas tiv thaiv xeb ntawm txias -cov ntawv hlau dov?
Cov hau kev: ① luv- lub sij hawm tiv thaiv xeb: Siv xeb- cov roj tiv thaiv, qhwv nrog cov dej noo- ntawv pov thawj; ② Ntev- tiv thaiv xeb: Kub-dip galvanizing (galvanized txias- dov steel ntawv), electro-galvanizing, phosphating + painting / hmoov txheej, cathodic electrophoresis.
Dab tsi yuav tsum tau ceev faj thaum khaws cia thiab thauj cov ntawv txias -rolled steel?
① Khaws rau hauv qhov chaw qhuav thiab qhov cua, kom tsis txhob muaj qhov chaw ntub dej; ② Qhov siab ntawm cov nplooj ntawv yuav tsum tsis txhob siab dhau (tsawg dua lossis sib npaug li 3 meters) txhawm rau tiv thaiv kev khoov thiab deformation; ③ Npog nrog cov ntaub los nag thaum lub sijhawm thauj mus los kom tsis txhob los nag thiab tshav ntuj; ④ Khaws cov ntaub ntawv sib txawv thiab cov lus qhia tshwj xeeb kom tsis txhob khawb qhov chaw.
Dab tsi yog qhov ua rau khawb ntawm qhov chaw txias -cov ntawv hlau dov?
① impurities ntawm yob nto thaum lub sij hawm tsim khoom; ② Residual oxide scale hais rau ntawm daim ntawv nto tom qab pickling; ③ Kev sib txhuam nrog cov khoom tawv thaum tuav thiab sib tsoo; ④ Kev khawb los ntawm cov pwm lossis cov khoom siv thaum ua haujlwm tom ntej.
Dab tsi yog qhov ua rau wavy deformation nyob rau hauv txias -rolled steel ntawv?
① Kev txo qis qis thaum lub sij hawm dov; ② Cov txheej txheem annealing tsis raug, ua rau muaj kev ntxhov siab tsis tiav; ③ Kev tswj tsis sib xws thaum lub sij hawm nce qib; ④ Kev ntim khoom tsis raug thaum lub sijhawm khaws cia lossis qhov chaw ntub dej ua rau deformation.