Yuav Ua Li Cas Qhia Stainless Hlau los ntawm Aluminium

Hauv cov chaw tsim khoom, kev tsim kho, thiab txawm tias cov ntawv thov hauv tsev, nws yog ib qho tseem ceeb kom paub tseeb tias cov khoom koj ua haujlwm nrog. Stainless hlau thiab txhuas yog ob qho tib si hlau siv nyob rau hauv ntau lub lag luam. Txawm hais tias lawv yuav zoo sib xws thaum xub thawj siab ib muag, lawv txawv heev ntawm lawv cov khoom, kev siv, thiab tus nqi. Kab lus no piav qhia meej txog yuav ua li cas qhia cov hlau tsis muaj hlau los ntawm txhuas siv cov kev soj ntsuam yooj yim, cov cuab yeej, thiab cov qauv kev sim yooj yim.

Qhov no qhia los ntawmsakysteel uayog tsim los pab cov neeg yuav khoom, engineers, thiab DIY enthusiasts sai sai qhov txawv ntawm ob hlau no, xyuas kom meej daim ntaub ntawv thiab tsis txhob raug nqi yuam kev.

1. Kev tshuaj xyuas qhov muag

Nto tiav thiab xim
Thaum xub thawj siab ib muag, stainless hlau thiab txhuas tej zaum yuav zoo ib yam li vim hais tias ob leeg yog silver-xim hlau. Txawm li cas los xij, muaj qhov sib txawv me ntsis:

• Stainless hlaufeem ntau muaj me ntsis darker, ntau lustrous, thiab daim iav zoo li tag.

• AluminiumNws yuav tshwm sim sib dua, greyer, thiab qee zaum duller.

Kev ntxhib los mos thiab qauv

• Stainless hlaufeem ntau smoother thiab tuaj yeem muaj ntau yam tiav xws li txhuam, iav-polished, lossis matte.

• Aluminiumtej zaum yuav muaj ib tug softer kev ntxhib los mos thiab qhia machining kab kom meej meej vim nws softness.

2. Qhov hnyav piv

Qhov sib txawv ntom ntom
Ib txoj hauv kev yooj yim tshaj plaws los sib txawv ntawm stainless hlau thiab txhuas yog los ntawm qhov hnyav.

• Stainless hlau yog ntau denser thiab hnyav dua.

• Aluminium yog li ib feem peb ntawm qhov hnyav ntawm stainless hlau rau tib lub ntim.

Yog tias koj khaws ob daim ntawm tib qhov loj, qhov hnyav dua yuav zoo li stainless hlau. Qhov kev sim no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv cov tsev khaws khoom lossis thaum lub sijhawm xa khoom thaum cov khoom siv hlau khaws cia ua ke.

3. Magnet Test

Cov hlau nplaum yog ib qho cuab yeej yooj yim tshaj plaws los sib txawv cov hlau no.

• Stainless hlautuaj yeem sib nqus, nyob ntawm nws qib. Feem ntau 400-series stainless hlau yog sib nqus, thaum 300-series (xws li 304 lossis 316) tsis yog lossis tsuas yog cov hlau nplaum tsis muaj zog.

• Aluminiumyog non-magnetic thiab yuav tsis teb rau ib tug hlau nplaum.

Thaum qhov kev ntsuam xyuas no tsis muaj tseeb rau tag nrho cov hlau tsis muaj steel, nws yuav pab tau thaum ua ke nrog lwm txoj hauv kev.

4. Ntsuas ntsuas

Kev kuaj lub txim yog siv lub grinder los soj ntsuam hom sparks cov hlau tsim.

• Stainless hlauyuav tsim ntev, reddish-txiv kab ntxwv sparks.

• Aluminiumyuav tsis tsim sparks nyob rau hauv tib yam kev mob.

Ceev faj:Txoj kev no yuav tsum tsuas yog ua nrog cov cuab yeej kev nyab xeeb thiab kev cob qhia, vim nws muaj cov cuab yeej siv ceev thiab cov khoom siv hluav taws xob.

5. Scratch Test (Hardness Test)

Siv cov khoom ntse zoo li cov ntaub ntawv hlau lossis riam los khawb qhov chaw me me.

• Stainless hlauyog ntau nyuaj thiab ntau resistant rau khawb.

• Aluminiumyog softer thiab khawb tau yooj yim nrog tsawg siab.

Qhov no yog ib txoj hauv kev tsis muaj kev puas tsuaj thiab ceev kom sib txawv ntawm ob.

6. Conductivity Test

Aluminium yog ib qho zoo tshaj plaws conductor ntawm hluav taws xob thiab cua sov piv rau stainless hlau.

• Yog tias koj nkag mus rau lub multimeter, koj tuaj yeem ntsuas hluav taws xob tsis kam. Kev tiv thaiv qis feem ntau qhia txog txhuas.

• Hauv kev siv cua sov, aluminium heats thiab cools down sai dua, thaum stainless hlau khaws kub ntev dua.

Txoj kev no muaj ntau dua nyob rau hauv chav kuaj lossis chaw ua haujlwm.

7. Corrosion Resistance Test

Thaum ob qho tib si hlau yog corrosion-resistant, lawv cov kev cuam tshuam txawv:

• Stainless hlautiv thaiv corrosion nyob rau hauv ib puag ncig nruj dua vim nws cov ntsiab lus chromium.

• Aluminiumtiv thaiv corrosion los ntawm kev tsim cov txheej txheem oxide, tab sis nws muaj kev cuam tshuam ntau rau acidic thiab alkaline tej yam kev mob.

Yog tias koj tab tom soj ntsuam tus cwj pwm corrosion nyob rau lub sijhawm, stainless hlau feem ntau tswj xyuas qhov chaw huv hauv qhov chaw hnyav.

8. Marking lossis Stamp Check

Cov hlau ua lag luam feem ntau yog cim lossis stamped nrog cov ntaub ntawv qib.

• Nrhiav cov lej zoo li304, 316, lossis 410rau stainless hlau.

• Aluminium feem ntau muaj cov cim xws li6061, 5052, lossis 7075.

Yog tias koj tab tom cuam tshuam nrog cov khoom lag luam uas tsis muaj cim, sib xyaw ua ke lwm yam kev ntsuas lub cev kom txiav txim siab raug.

9. Kev kuaj tshuaj

Koj tuaj yeem siv cov khoom siv tshwj xeeb uas txheeb xyuas cov hlau raws li cov tshuaj tiv thaiv.

• Cov khoom siv kuaj rau cov hlau tsis xeb kuaj pom muaj chromium thiab npib tsib xee.

• Kev ntsuam xyuas tshwj xeeb ntawm txhuas tuaj yeem suav nrog etching thiab hloov xim reagents.

Cov khoom siv no pheej yig thiab dav, ua rau lawv muaj txiaj ntsig zoo rau cov neeg siv khoom siv hlau lossis cov neeg yuav khoom.

10.Suab Test

Coj mus rhaub cov hlau nrog lwm yam khoom.

• Stainless hlaunyiam tsim lub suab nrov, zoo li tswb nrov vim nws hardness thiab ntom.

• Aluminiumua ib tug duller, ntau muted suab.

Txawm hais tias tsis yog qhov tseeb, txoj kev no tuaj yeem muab cov lus qhia thaum ua ke nrog qhov hnyav thiab kev kuaj pom.

11.Melting Point thiab Kub Resistance

Txawm hais tias feem ntau tsis tau sim ntawm qhov chaw, paub txog qhov melting point yuav pab tau:

• Stainless hlauNws muaj qhov taw tes melting ntau dua, feem ntau ntawm 1400-1450 ° C.

• Aluminiummelts ntawm kwv yees li 660 ° C.

Qhov sib txawv no yog qhov tseem ceeb rau kev siv vuam, casting, thiab kev siv kub.

12.Cov ntawv thov tseem tuaj yeem muab cov lus qhia

Kev nkag siab txog kev siv ntau ntawm cov hlau tuaj yeem coj koj qhov kev ntsuam xyuas:

• Aluminiumyog muaj nyob rau hauv automotive qhov chaw, aircraft Cheebtsam, ntim, thiab lub teeb yuag.

• Stainless hlauyog siv rau hauv cov khoom siv hauv chav ua noj, cov cuab yeej kho mob, kev tsim kho, thiab cov khoom siv marine.

Yog tias koj tab tom ua haujlwm nrog cov khoom hnyav lossis cov khoom siv tu cev, nws yuav zoo li stainless hlau.

Cov ntsiab lus ntawm qhov sib txawv