Txais tos tiv tauj peb: vicky@qyprecision.com

Kev paub yooj yim ntawm kev kho cua sov hlau

QY Precision tuaj yeem ua tiav tag nrho cov txheej txheem CNC, suav nrog Kev kho cua sov .
Kev kho cua sov hlau yog txheej txheem uas cov hlau ua haujlwm tau rhuab mus rau qhov tsim nyog kub hauv ib qho nruab nrab, thiab tom qab nws khaws cia ntawm qhov kub thiab txias rau qee lub sijhawm, nws txias ntawm qhov sib txawv.
1. Hlau qauv
Hlau: Ib yam khoom uas muaj opaque, metallic luster, zoo thermal thiab hluav taws xob conductivity, thiab nws cov hluav taws xob conductivity txo nrog nce kub, thiab yog nplua nuj nyob rau hauv ductility thiab malleability. Ib qho khoom (piv txwv li, siv lead ua) uas cov atoms hauv cov hlau tau teeb tsa tsis tu ncua.
Alloy: Ib yam khoom uas muaj cov yam ntxwv ntawm cov hlau uas muaj ob lossis ntau dua hlau lossis hlau thiab tsis yog hlau.
Theem: cov khoom ntawm cov alloy nrog tib lub ntsiab lus, qauv thiab kev ua tau zoo.
Kev daws teeb meem: Ib qho khoom siv hlau siv lead ua uas cov atoms (compounds) ntawm ib qho (lossis ob peb) cov ntsiab lus yaj mus rau hauv cov lattice ntawm lwm lub caij thaum tseem tuav lub lattice hom ntawm lwm lub caij. Cov kev daws teeb meem yog muab faib ua interstitial solid solution thiab hloov Ob hom khoom tov.
Cov kua nplaum muaj zog: Raws li cov kua atoms nkag mus rau hauv qhov khoob lossis cov ntawm cov kuab tshuaj siv lead ua lattice, cov siv lead ua lattice yog distorted thiab hardness thiab lub zog ntawm cov khoom tov yog nce. Qhov tshwm sim no yog hu ua kev daws teeb meem ntxiv dag zog.
Compound: Cov tshuaj sib xyaw ua ke ntawm cov khoom sib xyaw ua ke tsim cov qauv siv lead ua tshiab nrog cov khoom siv hlau.
Mechanical sib tov: Ib qho kev sib xyaw alloy muaj li ntawm ob lub qauv siv lead ua. Txawm hais tias nws yog ob sab siv lead ua, nws yog ib feem thiab muaj kev ywj pheej txhua yam khoom.
Ferrite: Cov khoom sib xyaw ua ke ntawm cov pa roj carbon hauv a-Fe (hlau nrog lub cev-centered cubic qauv).
Austenite: interstitial khoom tov ntawm carbon hauv g-Fe (lub ntsej muag-centered cubic qauv hlau).
Cementite: ib qho chaw ruaj khov (Fe3c) tsim los ntawm carbon thiab hlau.
Pearlite: cov khoom sib xyaw ua ke ntawm ferrite thiab cementite (F + Fe3c muaj 0.8% carbon)
Leeburite: cov khoom sib xyaw ua ke ntawm cementite thiab austenite (4.3% carbon)
 
Kev kho cua sov hlau yog ib qho ntawm cov txheej txheem tseem ceeb hauv kev tsim khoom siv tshuab. Piv nrog rau lwm cov txheej txheem ua, kev kho cua sov feem ntau tsis hloov cov duab thiab tag nrho cov tshuaj muaj pes tsawg leeg ntawm lub workpiece, tab sis los ntawm kev hloov cov microstructure sab hauv ntawm lub workpiece, los yog hloov cov tshuaj muaj pes tsawg leeg ntawm qhov chaw ntawm lub workpiece, muab los yog txhim kho cov kev ua tau zoo. ntawm lub workpiece. Nws tus yam ntxwv yog los txhim kho qhov zoo ntawm lub workpiece, uas feem ntau tsis pom ntawm qhov muag liab qab.
Txhawm rau ua kom cov hlau ua haujlwm muaj cov khoom siv kho tshuab, lub cev thiab cov khoom siv tshuaj lom neeg, ntxiv rau kev xaiv cov khoom tsim nyog thiab ntau yam txheej txheem, cov txheej txheem kho cua sov feem ntau yog qhov tseem ceeb. Hlau yog cov khoom siv dav tshaj plaws hauv kev lag luam machinery. Lub microstructure ntawm steel yog complex thiab tuaj yeem tswj tau los ntawm kev kho cua sov. Yog li ntawd, kev kho cua sov ntawm cov hlau yog cov ntsiab lus tseem ceeb ntawm kev kho cua sov hlau. Tsis tas li ntawd, txhuas, tooj liab, magnesium, titanium, thiab lwm yam thiab lawv cov alloys kuj tuaj yeem kho cua sov los hloov lawv cov khoom siv kho tshuab, lub cev thiab tshuaj lom neeg kom tau txais kev sib txawv.
 
Kev ua tau zoo ntawm cov khoom siv hlau feem ntau muab faib ua ob pawg: kev ua haujlwm ntawm cov txheej txheem thiab kev siv kev ua haujlwm. Cov txheej txheem hu ua kev ua tau zoo yog hais txog kev ua haujlwm ntawm cov khoom siv hlau raws li cov txheej txheem txias thiab kub ua haujlwm hauv kev ua thiab tsim cov txheej txheem ntawm cov khoom siv tshuab. Cov txheej txheem kev ua tau zoo ntawm cov ntaub ntawv hlau txiav txim siab nws qhov kev hloov pauv hauv kev tsim khoom. Vim muaj kev ua haujlwm sib txawv, cov txheej txheem kev ua haujlwm yuav tsum sib txawv, xws li kev ua haujlwm casting, weldability, forgeability, kev kho cua sov, machinability, thiab lwm yam. ntawm cov khoom siv kho tshuab, uas suav nrog cov khoom siv kho tshuab, cov khoom siv lub cev, cov khoom siv tshuaj lom neeg, thiab lwm yam. Kev ua haujlwm ntawm cov khoom siv hlau txiav txim siab nws qhov ntau ntawm kev siv thiab kev pabcuam lub neej.
Hauv kev lag luam tshuab tsim khoom, cov khoom siv tshuab dav dav siv nyob rau hauv qhov kub thiab txias, ib txwm muaj siab thiab tsis muaj zog corrosive media, thiab txhua qhov khoom siv yuav dais txawv loads thaum siv. Kev ua tau zoo ntawm cov ntaub ntawv hlau los tiv thaiv kev puas tsuaj nyob rau hauv lub load yog hu ua mechanical properties (los yog mechanical properties).
Cov khoom siv ntawm cov khoom siv hlau yog lub hauv paus tseem ceeb rau kev tsim thiab xaiv cov khoom siv ntawm qhov chaw. Qhov xwm txheej ntawm cov ntaub ntawv thov yog txawv (xws li nro, compression, torsion, cuam tshuam, cyclic load, thiab lwm yam), thiab cov khoom siv hlau yuav tsum sib txawv. Feem ntau siv cov khoom siv kho tshuab muaj xws li: lub zog, plasticity, hardness, cuam tshuam toughness, ntau yam cuam tshuam tsis kam thiab qaug zog txwv.
 
 


Post lub sij hawm: Aug-24-2021