Zirconium exhibits ib cim nyiam mus gall thiab ua hauj lwm nyuaj. Yog li ntawd, Ntau dua li tej clearance angles rau cov cuab yeej yuav tsum tau penetrate yav tas los ua hauj lwm hardened qhov chaw thiab txiav ib nti nti. Qhov txheeb xyuas tau zoo yuav tau nrog ob cemented carbide thiab high speed cuab yeej. Tiam sis, Cov cemented carbide feem ntau muab ib tug zoo tas thiab ntau productivity. Zirconium tshuab rau ib excellent tas thiab lub lag luam yuav tsum tau dog dig me horsepower piv nrog ntawd alloy steel. Nplua nti yuav tsum tsis pub mus accumulate rau los yog nyob ze cov khoom machining vim lawv yuav yooj yim ignited. Tej daim yuav tsum raug tshem tawm thiab muab cia, preferably nyob rau tej thaj chaw deb thiab raug rho tawm ntawm qhov chaw ntau lawm.
milling:
Ob lub ntsej muag vertical thiab horizontal slab milling muab tau zoo. Qhov twg tau Zirconium yuav tsum tau nce milled rau penetrate qhov chaw ua hauj lwm ntawm qhov ntau tshaj plaws thiab qhov tob ntawm txiav thaum emerging los ntawm qhov chaw ua hauj lwm hardened. Ib sab thiab edges ntawm milling cutters yuav tsum tau kpt ntse heev. Ib txheej herringbone cutters yuav tso cai zoo axial rake angles yuav zoo rau ob tog ntawm ib recess. Optimum qhov chaw tas thiab cuab yeej lub neej yog tau txais thaum lub cuab yeej yog av nrog ib tug zoo 12° rau 15° radial rake nrog rau tej kaum tsev. Ib tug kauv flute yuav tsum siv. Qhov chaw ua hauj lwm yuav tsum tau nyab los yog sprayed nrog ib txias kom kiag li ntxuav tag nrho tej daim ntawm cov cuab yeej. Lub penetration yuav ntau yam los ntawm .005 ntsaub .010 nti ib tug hniav 150 ntsaub 250 SFPM. Qhov chaw ua hauj lwm absorbs txog 10 Feem pua ntawm tej zog uas ntse cutters. Hafnium yuav tsum tau tsuas txog 75 Feem pua ntawm cov horsepower yuav tsum tau saE 1020 CR steel.
zom:
Txoj kev grinding siv rau Zirconium cia txheem grinding tshuab khoom. Cov grinding cim ntawm Zirconium yog zoo ib yam li cov lwm metals, thiab ob log thiab siv grinding yuav siv tau. Siv ncaj grinding roj los yog roj txias ua ib tug zoo tas thiab ntau dua yields; Tej yam khoom no kuj tiv thaiv tau ignition qhuav grinding swarf. Conventional grinding speeds thiab pub noj yuav siv tau. Silicon carbide thiab aluminum oxide yuav siv tau raws li abrasives, Tiam sis silicon carbide feem ntau muab tau zoo.
Log Grinding:
Zirconium ua ib tug kwj dawb kwj ntawm sparks. Conventional speeds thiab pub yog satisfactory thiab silicon carbide feem ntau muab tau zoo dua aluminum oxide. Thaum teeb noj thiab qeeb log speeds, grinding piv yog ua. Thaum heavier hauv pub thiab qeeb log speeds, txo nqi piv yog ua. Cov finishes ua yog in relation to cov grinding piv. Ntau grinding piv, uas txhais hais tias tsawg log breakdown, ua finer finishes. Cov nyhuv grinding kua rau hafnium yog tib yam li lwm hlau. Ncaj grinding roj ua ntau dua grinding piv dua dej miscible kua rau tag nrho cov pub.
Siv cov grinding:
Belt Speed thiab hu rau log xaiv yog ob tug thawj considerations thaum grinding Zirconium. Pom zoo siv ceev ceev yog 2,000 ntsaub 3,000 SFPM ntawm tsawg grinding pressures nrog 50 grit thiab coarser khoom, Thiab 2,500 ntsaub 3,500 SFPM nrog 60 grit thiab finer belts nrog zoo ib yam li ua hauj lwm siab. Thaum siab grinding pressures, 2,500 ntsaub 3,500 SFPM pom zoo nrog 50 grit thiab coarser thiab 3,000 ntsaub 4,000 SFPM nrog 60 grit thiab finer.
Kev sib cuag yuav tsum kuj nyuaj thiab txhoj puab heev. Soluble roj txias ib leeg kheej, los yog sib xyaw dej nyab los yog sib xyaw dej nyab. Resin abrasive khaub ncaws tej zaum yuav siv cov roj thiab roj hmab log rau general polishing haujlwm. Resin Industrial khaub ncaws hom 3 los yog hom twg 6 Pom zoo siv cov roj grinding haujlwm uas siab grinding pressures siv. mob(nurses), zoo ib yam li, waterproof khaub ncaws silicon carbide rau lub teeb ua hauj lwm thiab aluminum oxide hnyav ua hauj lwm yuav zoo ua hauj lwm nrog soluble roj thiab dej txias txias.
Welding:
Zirconium muaj zoo weldability dua ib co ntaub ntawv siv khoom, ua raws li cov txheej txheem kom zoo. Muab ntaub thaiv npog los ntawm tej huab cua uas muaj gasses xws li argon los yog helium tseem ceeb heev thaum welding cov hlau. Vim yog cov reactivity ntawm Zirconium rau feem ntau gases ntawm welding kub, welding tsis muaj ntaub thaiv npog yuav tso cai rau cov absorption ntawm cov pa, hydrogen thiab nitrogen los ntawm cov cua thiab li no embrittle lub weld. Zirconium feem ntau welded los ntawm cov roj tungsten arc welding (GTAW) txheej txheem. Lwm txoj kev uas siv rau cov khoom no muaj xws li; roj hlau arc welding (GMAW), plasma arc welding, electron beam welding thiab kuj welding.
Zirconium muaj tsawg coefficients ntawm thermal expansion thiab li no yaam puab paub me distortion thaum welding. Inclusions no tsis yog ib qho teeb meem nyob rau hauv cov welds vim hais tias cov hlau muaj ib solubility rau lawv tus kheej oxides, thiab vim tsis muaj fluxes siv nyob rau hauv welding, Flux entrapment yog eliminated. Zirconium muaj ib modulus ntawm elasticity; li no, residual stresses muaj tsawg nyob rau hauv ib lub weld tas weld. Tiam sis, Kev nyuaj siab nyem ntawm cov welds tau pom muaj nyob rau hauv cov kev pab cuam. Kev nyuaj siab-nyem kub ntawm 550° (1020°F) yuav tsum siv rau hafnium.
Zirconium yog yuav raug embrittlement los kuj feeb ntawm impurities, tshwj xeeb tshaj yog nitrogen, pa roj carbon monoxide, carbon monoxide, thiab hydrogen. Lawv muaj ib lub siab affinity rau cov hais ntawm lub welding kub. Vim yog qhov no muaj affinity rau gaseous hais, hafnium yuav tsum yog welded siv arc welding txheej txheem nrog inert shielding gases, xws li argon los yog helium, los yog muab nqus tsev nqus tsev.
Cov txheej txheem feem ntau siv rau welding Zirconium yog cov roj GTAW thiab GMAW txoj kev. Cov khoom no yuav siv tau thiab siv nyob rau hauv tus manual los yog automatic welding hom. Alternating tam sim no yuav siv tau rau roj tungsten arc welding. Ncaj polarity yog najnpawb rau welding nrog ib consumable electrode filler hlau vim qhov no tau nyob rau hauv ib ruaj khov arc. (Phau Ntawv Handbook)
Cov lus qhia saum toj no ntseeg tau tias muaj tseeb, Tiam sis yuav tsum tsuas siv tau raws li ib daim ntawv qhia. Eagle Alloys Corporation yog ib tug Zirconium Alloy Supplier, Tiam sis yuav tsum tsis txhob muaj lus dag rau tej khoom siv los yog ua zog los ntawm cov tswv yim no.
