Qhov ntom ntawm Hnav-resistant Phaj Thiab Nws Kub Kub Kub Tempering Brittleness

Khoom Description

Hnav-resistant phaj yog ib hom khoom lag luam nrog ci ci nyob rau hauv hnav-resistant steel phaj, hardness ntawm hnav-resistant phaj yog loj, thiab ntau yam ntawm kev siv yog dav, uas yuav tsum tau paub nyob rau hauv yuav luag engineering thiab mechanical industries. Kev ua tau zoo ntawm cov phaj hnav-tiv taus yog qhov zoo, thiab qhov laj thawj ncaj qha rau nws siv dav yog tias qhov ceev yog qhov loj.

Qhov ntom ntawm cov phaj hnav-resistant yog siab dua li ntawm qee cov ntaub ntawv, yog li ntawd nws hardness kuj loj. Qhov ntom ntawm cov hlau feem ntau siv rau cov ntawv hnav-tiv taus yog 7.85kg / dm cubic, tom qab quenching martensitic qauv, tempering nyob rau hauv qhov kub ntawm 450 ~ 600 degree; Los yog ntawm 650 degree tom qab tempering ntawm qhov txias txias ntawm 350 ~ 600 degree.

Los yog tom qab tempering ntawm 650 ° C, lub sij hawm ntev cua sov nyob rau hauv qhov kub ntawm 350 ~ 650 ° C yuav ua rau embrittlement ntawm hnav-resistant phaj. Yog hais tias lub embrittlement ntawm hnav-resistant phaj yog reheated rau 650 ° C thiab ces txias sai sai, lub toughness yuav rov qab tau, yog li nws kuj hu ua reversible tempering brittleness, thiab high-temperature tempering brittleness yog qhia raws li lub toughness ntawm hnav. -resistant phaj thiab qhov nce ntawm brittleness transformation kub.

Lub rhiab heev ntawm abrasion phaj rau kub tempering brittleness yog feem ntau qhia los ntawm qhov sib txawv ntawm toughness thiab brittleness transformation kub ntawm lub toughening xeev thiab lub xeev embrittlement. Qhov hnyav dua qhov tempering brittleness ntawm qhov kub thiab txias, qhov siab dua qhov sib piv ntawm qhov sib tsoo ntawm cov hlau-resistant steel phaj. Cov nyhuv ntawm cov khoom nyob rau hauv lub hnav-resistant phaj ntawm high-temperature tempering brittleness yog muab faib ua ob yam, ntawm ib sab, impurity ntsiab xws li phosphorus, tin, antimony, thiab lwm yam uas ua rau lub high-temperature tempering brittleness. ntawm lub phaj hnav-resistant; Lwm nam yog alloying cov ntsiab lus uas txhawb los yog ua rau kom kub-kub tempering brittleness nyob rau hauv ntau hom thiab rau txawv degrees.

Piv txwv li, chromium, manganese, npib tsib xee, silicon thiab lwm yam ua lub luag haujlwm txhawb nqa, thaum molybdenum, tungsten, titanium thiab lwm yam ua lub luag haujlwm qeeb, carbon kuj ua lub luag haujlwm txhawb nqa. General carbon hnav-resistant steel tsis nkig rau kub tempering. rhiab heev, muaj chromium, manganese, npib tsib xee, silicon binary los yog multi-component alloy steel yog rhiab heev, nws rhiab heev nws txawv raws li hom thiab cov ntsiab lus ntawm alloying ntsiab.