1. Hnav-resistant steel phaj txheej txheem cej luam
Wear Resistant Steel Phaj, uas yog hnav-resistant steel phaj, yog cov khoom siv phaj tshwj xeeb tshwj xeeb uas siv nyob rau hauv cheeb tsam loj hnav ua haujlwm. Nws yog tsim los ntawm tsawg-carbon steel phaj thiab alloy hnav-resistant txheej.
Qhov hnav-resistant steel phaj muaj cov yam ntxwv ntawm lub zog siab thiab siab hnav tsis kam. Lub alloy hnav-resistant txheej feem ntau yog 1/3 rau 1/2 ntawm tag nrho cov tuab. Thaum ua hauj lwm, cov matrix muab cov khoom zoo xws li lub zog, toughness thiab plasticity los tiv thaiv sab nraud quab yuam, thiab alloy hnav-resistant txheej muab hnav tsis kam kom ua tau raws li cov kev cai ntawm kev ua haujlwm.
Muaj ntau hom kev hnav-tiv taus steel daim hlau, nrog rau cov khoom siv hnav-resistant steel daim hlau thiab alloy quenched hnav-resistant steel daim hlau. Piv txwv li, KN60 hnav-resistant steel phaj yog ib yam khoom tsim los ntawm compounding ib co thickness ntawm alloy hnav-resistant txheej nrog siab hardness thiab zoo heev hnav tsis kam nyob rau saum npoo ntawm zoo tib yam low-carbon steel los yog low-alloy steel nrog zoo toughness. thiab plasticity los ntawm txoj kev surfacing. Cov kev tsis sib xws ntawm KN60 hnav-resistant steel phaj yog raws li nram no: Vickers hardness yog 1700HV; Cov khoom siv yog cov hlau tsis tshua muaj carbon steel, thiab lwm hom surfacing nyuaj alloys thiab niobium carbide tuaj yeem muab tau raws li qhov xav tau. Cov chromium thiab boron alloy carbides yog nplua nuj; Lub hardness ntawm cov khoom hnav-resistant txheej yog C62-65 HRc; lub thickness yog 3-15 millimeters; cov ntsiab lus nyuaj alloy yog ntau tshaj 50%; Qhov siab tshaj plaws ua haujlwm kub yog 1000 ° C.
Tsis tas li ntawd, hnav-resistant steel phaj 360 kuj yog ib hom kev muaj zog thiab siab hnav-resistant phaj. Nws yog tsim los ntawm kev siv tshuab prestressing thiab muaj zog tensile zoo dua thiab compressive zog, nrog rau kev hnav tsis kam thiab kev cuam tshuam.
2. Kev siv cov hlau uas hnav-resistant
2.1 Ntau yam kev siv hauv kev lag luam
Hnav-resistant steel daim hlau nrhiav kev siv dav hauv ntau yam lag luam. Hauv kev lag luam metallurgical, lawv tau siv rau hauv cov khoom siv xws li crushers thiab conveyor siv, uas niaj hnub raug puas thiab cuam tshuam. Hauv kev lag luam thee, lawv tau ua haujlwm nyob rau hauv cov thee chutes thiab mining machinery qhov chaw kom tiv taus qhov hnyav hnyav. Kev lag luam cement ua rau siv cov hlau tsis muaj steel hlau hauv kilns thiab sib tsoo mills kom ntseeg tau tias lub neej ua haujlwm ntev. Hauv kev lag luam fais fab, lawv tau siv hauv cov thee pulverizers thiab cov hmoov tshauv tuav.
Piv txwv li, hnav-resistant steel phaj 360 yog dav siv nyob rau hauv teb xws li tsheb, railways, aviation, metallurgy, tshuaj lom neeg kev lag luam, machinery, roj av, hluav taws xob, kev txuag dej, thiab kev tsim kho. Nws yog qhov zoo tagnrho rau cov khoom uas dais loj cuam tshuam loads nyob rau hauv industrial machinery vim nws zoo heev hnav tsis kam, cuam tshuam tsis kam, thiab corrosion kuj.
2.2 High nqi-zoo
Piv nrog rau lwm cov ntaub ntawv, hnav-resistant steel daim hlau muab cov nqi-kev ua tau zoo. Txawm hais tias tus nqi pib ntawm hnav-tiv taus steel daim hlau yuav siab me ntsis ntau dua li qee cov khoom siv, lawv cov kev hnav zoo dua thiab ua haujlwm ntev ua rau muaj kev txuag nyiaj ntau nyob rau lub sijhawm ntev. Piv txwv li, ib lub tuam txhab uas siv cov hlau-resistant steel phaj nyob rau hauv nws cov txheej txheem ntau lawm tej zaum yuav muaj kev txo downtime rau cov khoom siv tu thiab hloov, ua rau muaj peev xwm nce thiab txuag nqi.
Raws li cov ntaub ntawv, kev pab cuam lub neej ntawm hnav-resistant steel daim hlau yog feem ntau ob peb zaug ntev dua li ntawm cov hlau zoo tib yam. Qhov no txhais tau hais tias cov tuam txhab lag luam tuaj yeem txo lawv cov nqi khoom siv thiab cov nqi tu lub sijhawm. Tsis tas li ntawd, kev ua tau zoo ntawm cov hlau tsis muaj steel hlau yuav txo qhov kev pheej hmoo ntawm cov khoom siv tsis ua haujlwm thiab kev ua haujlwm qeeb, ntxiv dag zog rau lawv cov txiaj ntsig kev lag luam. Yog li ntawd, ntau thiab ntau kev lag luam thiab manufacturers tau qhia ib tug nyiam rau hnav-resistant steel daim hlau.
3. Kev faib khoom ntawm cov hlau tsis muaj steel hlau
3.1 Hom khoom siv
Hnav-resistant steel daim hlau feem ntau yog tsim los ntawm surfacing alloy hnav-resistant khaubncaws sab nraud povtseg ntawm zoo tib yam low-carbon steel los yog low-alloy steel. Kuj tseem muaj cam khwb cia hnav-resistant steel daim hlau thiab alloy quenched hnav-resistant steel daim hlau. Piv txwv li, qhov sib xyaw hnav-resistant steel phaj yog tsim los ntawm kev sib xyaw ua ke ntawm qee qhov tuab ntawm alloy hnav-resistant txheej nrog siab hardness thiab zoo heev hnav tsis kam ntawm lub hauv paus hlau.
3.2Cov yam ntxwv sib txawv
Feem ntau muaj peb hom kev hnav-tiv taus steel daim hlau: hom hom phiaj dav dav, hom kev cuam tshuam-resistant, thiab hom kub-resistant.
Lub hom phiaj ntawm kev hnav-tiv taus steel phaj muaj kev ua haujlwm ruaj khov thiab tsim nyog rau kev hnav khaub ncaws dav dav. Nws muaj kev hnav tsis zoo thiab muaj zog me ntsis. Cov kev tsis sib xws yuav suav nrog qee qhov nyuaj, feem ntau nyob ib ncig ntawm 50-60 HRC. Cov khoom muaj pes tsawg leeg feem ntau muaj cov ntsiab lus xws li chromium thiab manganese los txhim kho hnav tsis kam. Hauv kev ua tau zoo, nws tuaj yeem tiv taus qee qhov kev puas tsuaj thiab siv dav hauv kev lag luam xws li kev tsim khoom siv tshuab.
Qhov cuam tshuam-resistant hnav-resistant steel phaj yog tsim los tiv taus hnyav. Nws muaj siab toughness thiab zoo heev cuam tshuam tsis kam. Cov khoom siv feem ntau muaj cov ntsiab lus alloy uas txhim kho nws cov kev cuam tshuam. Piv txwv li, qee qhov cuam tshuam-resistant hnav-resistant steel daim hlau tej zaum yuav muaj ib tug hardness ntawm ib ncig ntawm 45-55 HRC tab sis nrog superior cuam tshuam kuj. Hom no haum rau cov ntawv thov uas cov cuab yeej raug cuam tshuam ntau zaus, xws li hauv kev lag luam mining thiab kev tsim kho.
Lub high-temperature resistant hnav-resistant steel phaj tuaj yeem tiv taus qhov kub thiab txias. Nws yog tsim los ntawm cov ntaub ntawv tshwj xeeb alloy uas tuaj yeem tswj kev ruaj ntseg ntawm qhov kub thiab txias. Cov txheej txheem kev ntsuas yuav suav nrog qhov siab tshaj plaws ua haujlwm kub txog li 800-1200 ° C. Cov khoom muaj pes tsawg leeg feem ntau muaj cov ntsiab lus xws li npib tsib xee thiab chromium kom ntseeg tau tias qhov kub thiab txias. Nyob rau hauv kev ua tau zoo, nws yog dav siv nyob rau hauv high-kub ib puag ncig xws li furnaces thiab kilns nyob rau hauv metallurgical thiab cement industries.
Post lub sij hawm: Oct-31-2024