Hnav-resistant steel daim hlau muaj xws li cov pa roj carbon tsawg thiab cov hlau alloy hnav-tiv taus txheej, nrog cov alloy hnav-resistant txheej feem ntau suav nrog 1/3 txog 1/2 ntawm tag nrho cov tuab. Thaum lub sijhawm ua haujlwm, cov khoom siv hauv paus muab cov khoom zoo xws li lub zog, toughness, thiab ductility los tiv thaiv sab nraud quab yuam, thaum lub alloy hnav-resistant txheej muab hnav tsis kam raws li kev ua haujlwm tshwj xeeb.
Lub alloy hnav-resistant txheej thiab cov khoom siv hauv paus yog metallurgically sib raug zoo. Siv cov cuab yeej tshwj xeeb thiab cov txheej txheem vuam tsis siv neeg, siab-hardness, nws tus kheej-shielding alloy hlau yog uniformly welded rau cov khoom siv hauv paus. Cov txheej txheem sib xyaw tuaj yeem yog ib, ob, lossis ntau txheej. Vim qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, qhov sib txawv ntawm cov kab nrib pleb tshwm sim thaum lub sij hawm lamination txheej txheem, lub cim ntawm hnav-resistant steel daim hlau.
Lub alloy hnav-resistant txheej feem ntau yog tsim los ntawm chromium alloy, nrog rau lwm yam alloying ntsiab xws li manganese, molybdenum, niobium, thiab npib tsib xee ntxiv. Cov carbides hauv cov qauv metallographic yog fibrous, nrog cov fibers oriented perpendicular rau saum npoo. Carbide microhardness tuaj yeem ncav cuag tshaj HV 1700-2000, thiab qhov tawv tawv tuaj yeem ncav cuag HRC 58-62. Alloy carbides muaj qhov ruaj khov ntawm qhov kub thiab txias, tswj kev ua haujlwm siab thiab oxidation zoo heev, tso cai rau kev ua haujlwm tag nrho hauv qhov kub txog li 500 ° C.
Cov txheej hnav-tiv taus tuaj yeem tshwm sim hauv nqaim (2.5-3.5mm) lossis dav (8-12mm) qauv, nrog rau cov qauv nkhaus (S thiab W). Feem ntau yog tsim los ntawm chromium alloys, cov hlau no kuj muaj manganese, molybdenum, niobium, npib tsib xee, thiab boron. Cov carbides raug faib ua cov qauv fibrous hauv cov qauv metallographic, nrog cov fibers khiav perpendicular mus rau saum npoo. Nrog rau cov ntsiab lus carbide ntawm 40-60%, microhardness tuaj yeem ncav cuag tshaj HV1700, thiab qhov tawv tawv tuaj yeem ncav cuag HRC58-62. Wear-resistant steel daim hlau feem ntau muab faib ua peb pawg: dav dav, cuam tshuam-resistant thiab kub-resistant. Tag nrho cov thickness ntawm hnav-resistant steel daim hlau tuaj yeem ua me me li 5.5 (2.5 + 3) mm thiab tuab li 30 (15 + 15) mm. Hnav-resistant steel daim hlau tuaj yeem muab dov rau hauv cov kav dej hnav-tiv taus nrog qhov tsawg kawg nkaus ntawm DN200, thiab tuaj yeem ua tiav rau hauv lub luj tshib-tiv taus, hnav-tiv taus tees thiab hnav-resistant reducers.
Post lub sij hawm: Sep-24-2025