Q1: Kuv yuav txiav txim siab cov preheat qhov kub thiab txias thaum vuam 12vovg steel kav?
Lub preheat qhov kub feem ntau tswj tau ntawm 200℃thiab 250 degree, nyob ntawm seb cov yeeb nkab phab ntsa tuab. Rau cov kav dej nrog ib phab ntsa tuab tsawg dua lossis sib npaug rau 15 hli, lub preheat qhov yuav tsum tsis pub tsawg tshaj 200 degree. Rau cov kav dej nrog ib phab ntsa tuab ntawm 15-30mm, lub preheat kub yuav tsum tau nce mus rau 220 degree. Tawv-cov kav hlau nrov tshaj 30 hli yuav tsum muaj lub preheat ntawm 250 degree. Lub preheat ntau yuav tsum yog peb zaug ntawm phab ntsa tuab ntawm txhua sab ntawm Weld, tab sis tsis pub tsawg tshaj 100 hli. Siv cov nplaim hluav taws xob hluav taws xob lossis cov nplaim taws rau cov cua sov niaj hnub, thiab saib xyuas qhov kub thiab txias rau hauv qhov kub thiab txias.
Q2: Yuav ua li cas vuam consumables yog pom zoo rau vuam 12cr1movg hlau kav?
Txhawm rau kev tuav cov ntawv Arc Vuam, R317 (E5515-B) Hydrogen Electrodes tau pom zoo. Rau submerged arc vuam, siv H08crmova Hlau Nrog SJ101 Flux. Tig-R40 xaim yog pom zoo rau roj Tungsten Arc Vuam (GTAWW) Primer Thov. Vuam consumables yuav tsum tau qhuav ntawm 350-400℃rau 1-2 teev ua ntej siv. Cov txheej txheem kev ua lag luam tsim kev vuam yuav pom zoo rau cov kev ntsuas tshuaj tseem ceeb los xyuas cov kev siv tau zoo.
Q3: Yuav ua li cas tuaj yeem tawg ua rau hauv 12CR1Movg steel yeeb nkab vuam puas tau zam?
Nruj tswj cov diffusible hydrogen cov ntsiab lus ntawm lub vuam consumables (tsawg dua los yog sib luag rau 5ml / 100g). Xyuas kom preheat txaus thiab sib txuam kub siab (200-300 degree). Siv ntau-hla vuam cov txheej txheem nrog cov tswv yim cua sov tsawg (15-20kj / cm). Ua tom qab kev kho cua sov sai sai tom qab vuam (250-3%℃/ 2h). Ua 100% Sib Nqus Ntsuas Particle Ntsuas (MT) 24 teev tom qab vuam.
Q4: Yuav ua li cas yog qhov yuav tsum tau ua rau tom qab Weld kho cua sov ntawm 12cr1Movg steel yeeb nkab?
Tom qab-WELD kev ntxhov siab rau kev kho cua sov thaum muaj 720-750 degree. Lub sijhawm uas tau tuav tau suav raws li phab ntsa tuab (2.5min / hli, tsawg kawg 1 teev). Tswj cov cua kub feem hauv qis dua 150 qib / h los tiv thaiv cov tiam kev ntxhov siab tshiab. Tus nqi cua txias yuav tsum tsis pub tshaj 200℃/ h. Cua txias yog tso cai tom qab lub cub tawg kom txias rau hauv qab 300 degree. Tom qab kev kho cua sov, Hardness Testing (HB tsawg dua lossis sib npaug rau 200) yuav tsum ua kom muaj kev muag kom txaus.
Q5: Yuav ua li cas zoo ntawm 12CR1MWG Steel Yeeb Welded pob qij txha?
Kev kuaj pom yuav tsum muaj Weld txhawb tsawg dua lossis sib npaug nrog 3mm, tsis muaj qhov tsis xws luag xws li undercuts lossis tawg. RT kev sim ua raws li JB / T4730 tus qauv, nrog qib dhau ntawm qib II. Siv cov ntawv ntsuas ntawm kev kuaj pom tsis tiav thiab tawg tawg. Kev sim ua kom lub hardness yuav tsum muaj weld cheeb tsam kom tsawg dua lossis sib npaug ntawm 220hb thiab thaj chaw kub-cuam tshuam los yog sib npaug 240hb. Rau cov pob qij txha tseem ceeb, cov qauv yuav tsum tau coj mus rau tensile thiab bend kuaj.
