Dab tsi yog 4 Hom Alloy Steel?
Nov 26, 2023| Dab tsi yog 4 hom hlau alloy?
Alloy steel yog ib hom hlau uas sib xyaw nrog lwm cov ntsiab lus los txhim kho nws cov khoom. Cov ntsiab lus no tuaj yeem suav nrog manganese, silicon, chromium, nickel, molybdenum, vanadium, thiab tungsten, thiab lwm yam. Qhov sib ntxiv ntawm cov ntsiab lus no muab cov hlau alloy txhim kho lub zog, hardness, durability, thiab tsis kam hnav thiab corrosion. Muaj ntau hom hlau alloy muaj, tab sis nyob rau hauv tsab xov xwm no, peb yuav tsom mus rau plaub yam tseem ceeb ntawm cov hlau alloy.
1. Cov hlau tsis tshua muaj hlau
Cov hlau tsis tshua muaj hlau yog hom hlau alloy uas muaj feem pua ntawm cov hlau alloying piv rau lwm hom hlau alloy. Nws feem ntau muaj tsawg dua 5% ntawm alloying ntsiab. Cov hlau tsis tshua muaj hlau feem ntau yog siv rau hauv cov qauv siv, xws li kev tsim cov choj, vim lawv cov weldability zoo, formability, thiab cuam tshuam tsis kam. Lawv kuj muaj lub zog zoo thiab tawv, uas ua rau lawv haum rau cov ntawv thov kev ntxhov siab.
Ib qho piv txwv ntawm cov hlau tsis tshua muaj hlau yog AISI 4130. Nws muaj chromium thiab molybdenum ua alloying ntsiab, uas ua rau nws txhim kho lub zog thiab hardenability. AISI 4130 feem ntau siv hauv kev lag luam aerospace los ua cov khoom siv dav hlau thiab paub txog nws lub zog qaug zog.
2. High Alloy hlau
High alloy steel, raws li lub npe qhia, muaj feem pua ntawm cov alloying ntau dua piv rau cov hlau tsis tshua muaj hlau. Nws feem ntau muaj ntau tshaj 10% ntawm alloying ntsiab. High alloy steels muaj cov cuab yeej tshwj xeeb, suav nrog lub zog siab, hardness, thiab tsis kam tiv thaiv corrosion thiab hnav. Lawv yog qhov zoo tagnrho rau cov ntawv thov uas xav tau kev ua haujlwm siab heev hauv qhov chaw nyuaj.
Ib qho piv txwv ntawm high alloy steel yog stainless hlau. Stainless hlau muaj qhov tsawg kawg nkaus ntawm 10.5% chromium, uas tsim cov txheej txheem oxide tiv thaiv ntawm qhov chaw, ua rau nws tiv taus corrosion. Stainless hlau yog dav siv nyob rau hauv ntau yam lag luam, nrog rau kev tsim kho, tsheb, thiab ua zaub mov.
3. Nruab nrab Alloy Steel
Medium alloy steel yog ib pawg ntawm cov hlau alloy uas ntog ntawm cov hlau tsis tshua muaj hlau thiab cov hlau alloy siab nyob rau hauv cov ntsiab lus ntawm feem pua ntawm cov ntsiab lus alloying. Nws feem ntau muaj 5-10% ntawm alloying ntsiab. Medium alloy steels muab qhov sib npaug ntawm lub zog, toughness, thiab tus nqi. Lawv yog ntau yam thiab feem ntau siv nyob rau hauv ntau yam kev siv.
Ib qho piv txwv ntawm nruab nrab alloy hlau yog AISI 4140. Nws muaj chromium, molybdenum, thiab manganese ua alloying ntsiab, uas muab nws zoo zog, toughness, thiab hnav tsis kam. AISI 4140 feem ntau yog siv rau hauv kev lag luam roj thiab roj rau kev ua cov cuab yeej drilling, xws li cov khoom siv tho thiab laum dab tshos.
4. Dual Phase Hlau
Dual-theem steel yog hom hlau alloy uas dhau los ua cov txheej txheem kev kho cua sov tshwj xeeb kom ua tiav ob-theem microstructure. Nws feem ntau muaj ib tug mos ferrite matrix nrog dispersed cheeb tsam ntawm hard martensite. Qhov kev sib xyaw ua ke ntawm cov theem no muab ob theem steel zoo heev lub zog, ductility, thiab cuam tshuam tsis kam.
Dual-theem steel feem ntau yog siv rau hauv kev lag luam automotive los tsim cov khoom hnyav thiab lub zog siab, xws li tsheb thav duab thiab qhov sib tsoo-tiv taus. Nws muaj qhov sib npaug zoo ntawm kev txo qhov hnyav thiab kev nyab xeeb kev sib tsoo, ua rau nws zoo tagnrho rau kev txhim kho roj thiab kev nyab xeeb ntawm lub tsheb.
Hauv kev xaus
Alloy steel los ntawm ntau hom thiab cov khoom sib xyaw, txhua qhov muab cov khoom tshwj xeeb haum rau kev siv sib txawv. Plaub hom hlau alloy tau hais hauv tsab xov xwm no, uas yog cov hlau tsis tshua muaj hlau, hlau alloy siab, nruab nrab alloy steel, thiab dual-theem steel, npog ntau yam kev siv thiab yuav tsum tau ua.
Txawm hais tias nws yog rau kev tsim qauv, kev tiv thaiv corrosion, lossis kev siv lub zog siab, alloy steel muab ntau yam kev daws teeb meem thiab txhim khu kev qha. Kev nkag siab txog ntau hom hlau alloy muaj pub rau cov kws tsim khoom thiab cov chaw tsim khoom xaiv cov khoom tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb, ua kom pom kev ua haujlwm zoo thiab ua haujlwm ntev.