Copper tshav kub kev kho mob ntawm loj forgings yog tsuas yog forged ncaj qha los ntawm lub ingot, yog li ntawd nyob rau hauv lub tshav kub kev kho mob yuav tsum tau xav txog thaum smelting, ingot casting, forging thiab lwm yam txheej txheem ntawm lub casting ntawm lub sab hauv zoo ntawm lub casting, tsuav yog qhov cuam tshuam ntawm lub yam tseem ceeb yog tshuaj muaj pes tsawg leeg tsis sib xws nyob rau hauv lub xub ntiag ntawm ntau yam smelting defects; coarse nplej thiab tsis sib xws; ntau gases thiab impurities; loj forging kev nyuaj siab thiab kev kho cua sov kev nyuaj siab.
Lub hom phiaj ntawm kev kho cua sov tom qab forging ntawm loj forgings yog los tiv thaiv cov pob dawb thiab hydrogen embrittlement, txhim kho lub koom haum sab hauv ntawm forgings, tshem tawm forging kev nyuaj siab, txo hardness thiab txhim kho kev ua hauj lwm txiav, thiaj li yuav tau txais zoo mechanical zog los yog npaj lub koom haum. rau yav tom ntej kev kho cua sov.317L stainless hlau yeeb nkab forging belongs rau lub casting ntawm loj forgings. Manganese tuaj yeem txhim kho lub zog ntawm cov hlau, tuaj yeem txo qis thiab tshem tawm cov teeb meem tsis zoo ntawm leej faj, thiab tuaj yeem txhim kho hardenability ntawm steel, siab alloy steel nrog siab manganese cov ntsiab lus (siab manganese steel) muaj kev hnav tsis kam thiab lwm yam khoom siv lub cev. Silicon nws tuaj yeem txhim kho qhov nyuaj ntawm cov hlau, tab sis plasticity thiab toughness poob, hluav taws xob hlau uas muaj qee qhov nyiaj ntawm silicon, tuaj yeem txhim kho cov khoom sib nqus mos. Tungsten tuaj yeem txhim kho cov tawv tawv liab thiab thermal zog ntawm cov hlau, thiab tuaj yeem txhim kho qhov hnav tsis kam ntawm lub raj tooj liab. Chromium tuaj yeem txhim kho lub hardenability thiab hnav tsis kam ntawm cov hlau, thiab tuaj yeem txhim kho corrosion kuj thiab oxidation tsis kam ntawm hlau. Vanadium tuaj yeem txhim kho lub koom haum grain ntawm steel, txhim kho lub zog, toughness thiab hnav tsis kam ntawm hlau.
Thaum nws yog melted rau hauv austenite ntawm qhov kub thiab txias, nws ua rau kom cov hardenability ntawm hlau; conversely, thaum nws muaj nyob rau hauv daim ntawv carbide, nws txo nws hardenability. Molybdenum tuaj yeem txhim kho qhov hardenability thiab thermal zog ntawm tooj liab alloy yeeb nkab, tiv thaiv tempering brittleness, txhim kho cov hlau nplaum remanent thiab petite recalcitrance, titanium tuaj yeem ua kom zoo dua lub koom haum grain ntawm tooj liab alloy yeeb nkab, yog li txhim kho lub zog thiab toughness ntawm tooj liab alloy yeeb nkab.
