Forged Khoom:
20MnNi thiab 20MnNi.
Mechanical Properties:
Rau forging thickness (T) ntawm 300mm < T ≤ 500mm, cov khoom siv 20MnNi yuav tsum muaj lub zog tawm los ≥ 265MPa, tensile zog ≥ 515MPa, elongation tom qab tawg ≥ 21%, txo thaj tsam ≥ 35%, cuam tshuam lub zog nqus (0 ℃ ) ≥ 30J, thiab tsis muaj kab nrib pleb thaum khoov txias.
Rau forging thickness (T) ntau dua 200 hli, cov khoom siv 25MnNi yuav tsum muaj lub zog yield ≥ 310MPa, tensile zog ≥ 565MPa, elongation tom qab tawg ≥ 20%, txo thaj tsam ≥ 35%, cuam tshuam lub zog nqus (0 ℃) ≥ 30J , thiab tsis muaj kab nrib pleb thaum lub caij txias khoov.
Kev kuaj tsis raug:
Cov kev sib txawv uas tsis yog kev puas tsuaj xws li kev kuaj ultrasonic (UT), kev ntsuas cov khoom sib nqus (MT), kev ntsuas kua nkag (PT), thiab kev tshuaj xyuas qhov muag (VT) yuav tsum tau ua nyob rau ntau thaj tsam ntawm lub ntsiab ncej forging ntawm ntau theem thiab tej yam kev mob. . Cov khoom xeem thiab cov qauv lees txais yuav tsum ua raws li cov qauv tsim nyog.
Kev kho mob:
Ntau qhov tsis xws luag tuaj yeem raug tshem tawm los ntawm kev sib tsoo nyob rau hauv cov nyiaj ua haujlwm machining. Txawm li cas los xij, yog tias qhov tob ntawm qhov kev tshem tawm tsis zoo tshaj 75% ntawm qhov nyiaj ua tiav, kev kho vuam yuav tsum tau ua. Kev kho tsis raug yuav tsum tau pom zoo los ntawm tus neeg siv khoom.
Shape, Dimension, thiab Surface Roughness:
Cov txheej txheem forging yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm qhov ntev thiab qhov roughness tau teev tseg hauv daim ntawv xaj. Lub voj voog sab hauv nto roughness (Ra tus nqi) ntawm forging yuav tsum ua tiav los ntawm tus neeg muag khoom kom ua tiav 6.3um.
Melting: Cov hlau ingots rau forging yuav tsum tau ua los ntawm hluav taws xob rauv melting thiab ces refined sab nraum lub cub tawg ua ntej nqus casting.
Forging: Tsim nyog txiav nyiaj yuav tsum tau muab rau ntawm lub sprue thiab riser kawg ntawm cov hlau ingot. Forging yuav tsum tau ua ntawm muaj peev xwm forging presses kom paub meej txaus cov yas deformation ntawm tag nrho cov ntoo khaub lig-section ntawm forging. Nws raug pom zoo kom muaj qhov sib piv forging ntau dua 3.5. Lub forging yuav tsum ze ze rau qhov kawg cov duab thiab qhov ntev, thiab cov centerlines ntawm forging thiab steel ingot yuav tsum ua kom zoo.
Kev kho cua sov rau cov khoom: Tom qab forging, lub forging yuav tsum tau tempering los yog normalizing thiab tempering kho kom tau raws li cov qauv thiab cov khoom. Qhov ntsuas kub tsawg kawg nkaus yuav tsum tsis txhob qis dua 600 ° C.
Yog tias koj xav tau cov ntaub ntawv ntxiv txog WELONG forgings rau cov iav loj thiab lub nplhaib iav, thov qhia rau peb paub.
Post lub sij hawm: Jan-08-2024
