Dab tsi yog cov hlau ceev?
High-ceev steel (hss) yog lub cuab tam hlau nrog lub hardness siab, hnav tsis kam, thiab kub tsis kam. Hss yog ib hom ntawm cov hlau nplaum complex, uas muaj carbide-tsim cov khoom xws lilub tungsten, molybdenum, yeebsab, thee lub hau, thiabkhaib, thiab tag nrho cov nyiaj ntawm alloy yog hais txog 10-25%.
HSS yog tsuas yog siv los tsim cov hniav nyias nyias thiab cov tawv nqaij kom tiv thaiv cov cuab yeej kub (500 kev xav tau ntawm cov kev kub siab, thiab lwm yam.
Tom qab quenching thiab tsawg kub tempered, carbon Tool steel muaj lub siab tawv ntawm chav sov, tab sis lub hardness yog ib qho kev poob siab thaum kub siab dua 200 degree. Thaum qhov ntsuas kub nce mus txog 500 degree ntawm hardness yog zoo li ib lub xeev annealing, uas txwv tsis pub siv cov cuab yeej siv roj carbon tuam ua ib qho kev txiav. Cov hlau siab-ceev ua rau lub zog ua kom tsis xws luag ntawm carbon Tool steel vim nws liab hardness.
Dab tsi yog tungsten steel?
Tungsten steel (nyuaj alloy) muaj cov yam ntxwv zoo heev xws li lub zog tiv thaiv, lub zog, kub tsis kam, thiab corrosion tsis kam. Tshwj xeeb, nws lub siab tawv thiab hnav kuj tseem ruaj txawm tias nyob ruaj khov ntawm 500 degree, thiab tseem muaj kev nyuaj ntawm 1000 degree.
Lub ntsiab Cheebtsam ntawm tungsten steel yogtungsten carbidethiab cobalt, uas tus lej nyiaj rau 99% ntawm tag nrho cov Cheebtsam thiab 1% yog lwm cov hlau. Tungsten steel, tseem hu ua qhov nyuaj alloy, yog suav tias yog cov hniav ntawm kev lag luam niaj hnub. Tungsten steel tau siv dav raws li cov khoom siv, xws li ib qho kev hloov pauv, tho txawv ntawm carbide tshiab yog ntau pua ntawm cov hlau.
Tungsten steel yog sintered composite cov khoom muaj tsawg kawg yog ib hom hlau carbide, thiab tungsten carbide,cobalt carbide, niobium carbide, Titanium carbide, thiabtantalum carbidemuaj feem xyuam ntawm tungsten steel. Cov noob nplej loj ntawm lub carbide tivthaiv feem ntau yog nruab nrab ntawm 0}}}}}}}}}}}.}} Cov hlau sib txuas hlau feem ntau yog cov pab pawg hlau feem ntau yog siv yog cobalt,tus menyuam yaus, yog li muaj tungsten-cobalal alloy, tungsten-nickel alloy, thiab tungsten-titanium cobalt alloy.
Sintering txheej txheem ntawm tungsten steel yog mus nias lub hmoov rau hauv cov lus tsis txaus ntseeg rau ib lub sijhawm (Sinining nws cia, yog li tau txais lub tungsten steel khoom nrog cov khoom yuav tsum tau.
