Qhov tseem ceeb ntawm kev kho cua sov kom cov kab hlau loj hlau hlau

Cov laj thawj tseem ceeb vim li cas Kev kho mob hlau loj yuav tsum muaj zog nce zuj zus thiab kom zoo dua qub, thiab lwm yam kev ua haujlwm sab hauv kho ua kom sov rau kev ua haujlwm ntawm cov kav hlau loj.

(1) txhim kho lub zog thiab hardness

Kev kho cua sov yog lub thev naus laus zis uas tuaj yeem hloov cov qauv sab hauv ntawm cov khoom siv hlau los ntawm cov khoom siv hlau los ntawm cov khoom cua sov, rwb thaiv tsev thiab cov txheej txheem txias. Nws tuaj yeem ua cov yeeb nkab cov qauv qauv xws li Austenite, xws li loj heev txhim kho nws cov zog, hardness, muaj zog thiab qaug zog ntawm cov kav hlau steel.

Piv txwv li, cov txheej txheem quenching ua kom sov cov yeeb nkab steel saum toj no thiab tom qab ntawd txhim kho lub zog thiab hardness ntawm cov yeeb nkab steel. Qhov no pab cov raj xa hluav taws xob ruaj khov kho thiab txuas ntxiv nws lub neej pabcuam thaum nws tiv thaiv kub, siab siab thiab muaj kev sib koom tes.

(2) txhim kho cov kev hnav tsis kam thiab corrosion tsis kam

Qhov kev nyab xeeb ntawm cov raj xa khoom yog qhov tseem ceeb thaum thauj cov kua dej, tshwj xeeb tshaj yog cov nplaim taws, tawg thiab cov tshuaj lom neeg. Thaum lub sij hawm ua haujlwm ntawm cov raj xa dej, nws txoj kev ua tau zoo sib xws nrog cov thermal conductivity, thermal expansion thiab lwm yam khoom ntawm cov khoom. Los ntawm kev kho tshav kub kub, cov khoom siv tau ua tau zoo, yog txo cov kev ntxhov siab rau qhov ntsuas kub thiab tag nrho cov kev ua tau zoo ntawm cov raj xa hluav taws xob. Los ntawm kev kho cua sov, seem kev ntxhov siab hauv cov ntaub ua yeeb nkab tuaj yeem tshem tawm, txo qhov kev pheej hmoo ntawm deformation thiab kev tawg. Tsis tas li ntawd, kev kho cua sov kuj tuaj yeem txhim kho cov ntaub ntawv tiv thaiv corrosion thiab txhim kho cov raj xa dej ib puag ncig sab nraud, yog li ua kom muaj kev nyab xeeb ntawm cov raj xa hluav taws xob.

Tsis tas li ntawd, kev kho cua sov tuaj yeem hloov cov qauv siv hluav taws xob ntawm cov txheej txheem steel thiab ua kom zoo dua qub thiab corrosion tsis kam thiab corrosion tsis kam thiab corrosion tiv taus ntawm cov yeeb nkab steel. Piv txwv, nto quenching siv cov cua sov los yog nplaim hluav taws kub kom sov sov thiab quench saum npoo ntawm cov steel yeeb nkab los ua ib qho siab-hardness txheej; carburizing kev kho mob thiab nitrogen rau saum npoo ntawm cov yeeb nkab steel nyob rau ntawm cov txheej txheem hardburized. Lossis nitrived txheej los txhim kho kev coj ua tau zoo thiab corrosion tsis kam.

(3) Tshem tawm sab hauv kev ntxhov siab

Thaum lub sijhawm tsim khoom lag luam thiab kev ua cov txheej txheem, cov kav hlau yuav tsim kev ntxhov siab sab hauv, uas yuav ua rau muaj kev txhawj xeeb, tawg ntawm cov kav hlau thaum siv. Kev kho cua sov tuaj yeem tshem tawm lossis txo cov kev ntxhov siab sab hauv thiab ua kom muaj qhov ruaj khov ntawm cov kav hlau. Piv txwv li, cov txheej txheem annealing tso sab hauv kev ntxhov siab los ntawm cov cua sov rau ib qho kub thiab maj mam txias, ua kom cov qauv txav mus los thiab qhov ua tau zoo ruaj khov.

(4) Txhim Kho Cov Khoom Siv Cov Neeg Kho thiab Cov Txheej Txheem

Kev kho cua sov tuaj yeem txhim kho cov plasticity, kev sib txuam thiab cuam tshuam cov khoom lag luam hlau, ua rau lawv tsis tshua muaj zog thiab cuam tshuam rau lawv lub neej pabcuam. Ib qho ntxiv, kho cov roj steel hlau muaj cov txheej txheem zoo dua thiab yooj yim rau kev txiav, weld thiab daim ntawv, txo kev nyuaj thiab nqi. Piv txwv li, annaling thiab noraling kev kho mob tuaj yeem kho cov nplej, txhim kho cov khoom siv neeg cov neeg kho kom zoo, thiab npaj rau kauj ruam tom ntej.

Hauv cov ntsiab lus, kav yuav tsum tau kho kom sov los txhim kho cov khoom siv cov khoom, muaj kev nyab xeeb ntxiv, thiab txhawb kev ua haujlwm ntawm cov raj txheej txheem. Tus txheej txheem no ua kom muaj kev ua haujlwm ruaj khov ntawm cov kav dej ruaj khov, ua kom muaj kev nyab xeeb thiab tseem muaj kev ruaj ntseg ntawm cov raj xa hluav taws xob.