Nplaim Txiav

Nplaim taws txiav, tseem hu ua Oxy-Kev txiav roj, yog cov txheej txheem thermal hlau txiav uas siv cov nplaim hluav taws kub siab ({1}} sib txuas cov pa oxygen thiab roj av) kom yaj thiab oxidize hlau tib lub sijhawm ib lub dav hlau ntawm cov pa dawb huv tshuab tawm cov khoom molten, tsim kom muaj kev txiav huv si. Nws tau yog ib qho tseem ceeb heev hlau txiav tov rau hnyav steel fabrication vim nws cov nqi qis nrog lub peev xwm txawv tshaj plaw los txiav cov ntaub ntawv tuab. Txawm li cas los xij, rau qhov siab precision, tsis yog- cov hlau ferrous, lossis cov ntawv nyias, cov ntshav, laser, lossis waterjet txiav yog lwm txoj hauv kev zoo dua.

 

Kev piav qhia

 

 

√Txiav thickness ntau, zoo tagnrho rau 6mm txog 150mm

√Gas hom: acetylene (kub nplaim taws), propane, los yog natural gas (pheej yig dua tab sis txias dua). Rau cov pa oxygen, nws ib txwm xav tau purity Ntau dua los yog sib npaug rau 99.5% ntshiab vim tias impurities txo txiav ceev / zoo.

√Gas siab, Oxygen: 2-7 bar, los yog roj roj: 0.3-1.5 bar. (nyob ntawm seb cov khoom siv steel thickness, thiab siab dua, lub thickness ntawm steel phaj).

√Nozzle loj, lub nozzles loj yog xav tau rau cov hlau tuab, 1 hli nozzle tuaj yeem tuav txog 20 hli, thaum 3 hli nozzle raug pom zoo rau 50 hli +

√Kev kam rau siab, ± 0.8 hli mus rau ± 2.5 hli (nyob ntawm thickness & tus neeg ua haujlwm txawj).

√Qhov dav dav dav: 1.5 hli mus rau 6 hli (nyob ntawm cov khoom tuab), thiab kerf nce nrog tuab vim qeeb qeeb thiab dav dav cov dej ntws.

√Txiav ceev, thiab nws nyob ntawm cov khoom thickness. Hauv qab no yog ib tug nrov parameter setups:

1. 6 hli steel: ~ 500 mm / min, txiav ceev 400mm / feeb, nozzle loj: 1 hli, oxygen nias: 2.5 bar

2. 25 hli steel: ~ 250 mm / min, txiav ceev 200mm / feeb, nozzle loj: 2 hli, oxygen nias: 4 bar

3. 100 hli steel: ~ 50 mm / min, txiav ceev 60mm / feeb, nozzle loj: 2.5mm, oxygen nias: 10 bar

 

 

cam khwb cia hlau tuaj yeem raug nplaim taws txiav raws li qee qhov xwm txheej, tab sis cov txheej txheem tsis tas yuav tsum tau hloov kho raws li cov khoom siv thiab kev ua haujlwm tshwj xeeb, thiab Fabmann cov kws ua haujlwm tsim khoom muaj kev paub dhau los ntawm kev txiav cov ntaub ntawv hlau, thiab hauv qab no yog cov ntsiab lus luv luv:

 

√Carburizing nplaim (oxygen rau acetylene ntim piv tsawg dua 1) yuav tsum tau los tiv thaiv oxidation ntau dhau ntawm cov cam khwb cia hlau, thiab qhov kev ceeb toom tshwj xeeb no yog txhawm rau txo qhov kev pheej hmoo ntawm cov pa roj carbon ntau hauv cov txheej txheem cam khwb cia hlau.

√Qhov feem pua ​​​​ntawm cov pa oxygen ntau dhau tuaj yeem ua rau cov khoom embrittlement.

√High carbon cam khwb cia hlau los yog cam khwb cia hlau uas muaj cov alloys tshwj xeeb yuav tsis haum rau cov nplaim taws.

‌√Cam khwb cia hlau zoo, yog tias muaj qhov tsis xws luag xws li qhov pores thiab slag inclusions hauv cov hlau cam khwb cia, nws yog ib qho yooj yim ua rau tsis sib xws los yog tawg ntawm qhov txiav thaum lub sij hawm hluav taws kub txiav, thiab cov khoom siv kev ntseeg siab yuav tsum tau sim ua ntej qhov hluav taws kub loj pib.

 

Nyob rau hauv cov ntsiab lus, nplaim txiav yog tsim rau cam khwb cia hlau ua, tab sis nws yuav tsum tau ua ke nrog cov khoom thiab cov txheej txheem yuav tsum tau. Yog tias tsim nyog, plasma lossis band saw txiav tuaj yeem muab qhov tseem ceeb los txhim kho kev ua haujlwm.

 

Advantages vs Disadvantages

 

Nplaim taws txiav tau kov yeej nws qhov tsis zoo los ntawm CNC (Computer Numerical Control) nplaim taws txiav, thiab nws tuaj yeem tswj cov qib siab ntawm automation thiab precision yav tas los tsis tuaj yeem nrog cov nplaim taws txiav. CNC nplaim taws txiav cuam tshuam nrog kev siv cov khoos phis tawj los txiav txim qhov txav ntawm lub teeb taws ntawm qhov chaw ua haujlwm, ua kom cov txiaj ntsig zoo ib yam thiab rov ua dua, thiab kev txiav cov nplaim hluav taws xob tam sim no feem ntau yog siv rau ntawm - chaw tu cov haujlwm.

 

Hauv qab no yog cov ntsiab lus luv luv:

Qhov zoo:

√Tus nqi lag luam qis, nws feem ntau pheej yig dua li lwm cov kev daws teeb meem xws li waterjet, laser thiab hlau txiav, ua rau nws muaj peev xwm xaiv tau rau me me rau nruab nrab - ua haujlwm loj.

√Versatility, nws muaj peev xwm lis ntau yam ntawm cov ntaub ntawv hlau los ntawm nruab nrab mus rau tuab daim hlau, muab kev yooj yim hauv kev tsim thiab daim ntawv thov.

√Kev ua tau zoo, nws paub zoo txog kev txiav ceev ceev, thiab kev tshem tawm cov ntaub ntawv ceev yog qhov zoo tshwj xeeb rau cov haujlwm loj -.

√Txiav muaj peev xwm, nws tuaj yeem txiav cov ntaub ntawv tuab dua li lwm txoj kev txiav xws li laser txiav lossis plasma txiav.

 

Qhov tsis zoo:

√HAZ (Huab cua sov-Teb chaws cuam tshuam), ib qho ntawm qhov tsis zoo tshaj plaws yog HAZ cuam tshuam nyob ib puag ncig ntawm thaj chaw txiav, thiab cov cua kub hnyav tuaj yeem hloov cov khoom siv, ua rau muaj teeb meem xws li nce hardness lossis hloov hauv microstructure. Yog li ntawd, nws yog pom zoo kom ntau rau nruab nrab mus rau tuab daim hlau.

√Tsawg precision, tshwj xeeb tshaj yog phau ntawv hluav taws xob txiav yog txwv nyob rau hauv cov nqe lus ntawm precision, tshwj xeeb tshaj yog thaum soj ntsuam nrog intricate designs los yog nyias cov ntaub ntawv. CNC nplaim taws txiav tau ua tau zoo heev nyob rau hauv cov nqe lus ntawm kev txiav precision, tab sis nws tseem tsis zoo li plasma txiav los yog laser txiav rau nruab nrab tuab daim hlau.

√Tsis zoo txiav zoo nyob rau hauv cov nqe lus ntawm kev txiav ntug & nto, irregularity, slag thiab kab nrib pleb, thiab hauv qab no yog ib tug luv luv cov ntsiab lus ntawm lub peev xwm zoo teeb meem txuam nrog nplaim taws:

 

1. Cov npoo tsis zoo, xws li ntug melting tawm, solidified droplets thiab txiav ntug overhang. Cov teeb meem no tuaj yeem tshwm sim los ntawm cov hauv qab no:

1.1 Cov nplaim hluav taws kub muaj zog heev

1.2 tsis raug ncua deb ntawm nozzle thiab workpiece

1.3 incorrect forward speed of torch

1.4 nozzle loj yuav loj dhau rau lub thickness yuav raug txiav

1.5 seem ntawm cov roj av

 

2. Qhov tsis zoo ntawm qhov chaw txiav, sab sauv ntawm qhov chaw txiav yog concave hauv qab ntawm ntug txiav, thiab ntug ntawm txiav nws tus kheej yuav ntau dua los yog tsawg dua. Cov teeb meem no feem ntau yog concave txiav nto hauv qab ntug saum npoo, nqaim ntawm kerf (convergent & divergent), concave cut nto, irregular cut deg, lub kaum sab xis ntawm qhov chaw txiav (txiav nto profile tsis ua raws li qhov xav tau), thiab sib npaug hauv qab ntug. Qhov ua tau yog:

2.1 txiav cov pa oxygen siab dhau lawm

2.2 Kev teeb tsa tsis raug ntawm nozzle thiab cov khoom ua haujlwm

2.3 nozzle tsis huv

2.4 interrupted beam ntawm txiav oxygen

2.5 rau pem hauv ntej ceev ntawm lub teeb ceev heev

2.6 tsis raug nozzle loj

 

3. Grooves, tseem hu ua imperfections nyob rau hauv txoj kab, ntau dhau ntawm kev txiav txoj kab, zawj - hom ntawv txiav nto nyob rau hauv kev taw qhia ntawm txoj kab txiav qhov tob. Cov tsis xws luag yog cais gouges, grouped gouges. Qhov ua tau yog:

3.1 rau pem hauv ntej ceev ntawm lub teeb yuav qeeb heev

3.2 qias neeg los yog puas lub nozzle

3.3 interrupted beam ntawm txiav oxygen

3.4 nplaim taws yuav qaug zog heev

 

4. Cov slags ntau dhau, xws li hauv qab txiav ntug slags, slag thaj ntawm qhov txiav, qhov ua tau yog:

4.1 rau pem hauv ntej ceev ntawm lub teeb yuav ceev dhau los yog qeeb dhau

4.2 nozzle loj yuav me dhau

4.3 Kev teeb tsa tsis tshua muaj pa oxygen

4.4 seem ntawm roj av

4.5 qias neeg los yog scaled steel workpiece

 

5. Cov kab nrib pleb, ntawm qhov chaw txiav los yog hauv qab ntuag, qhov ua tau yog:

5.1 carbon cov ntsiab lus los yog cov ntsiab lus ntawm alloy admixtures siab heev

5.2 preheating ntawm lub workpiece tsis txaus

5.3 workpiece kub cools down sai heev

5.4 cov khoom txias ua haujlwm hardened

 

Fabmann muab kev pabcuam ua tiav hlau ua tiavhlau txiav, hlau tsim, yob txoj kev, hlau vuamthiabhlau nto khothiab yog li ntawd peb tuaj yeem muab ib qho - nres- kev pabcuam khw rau koj. Yog tias koj npaj yuav tsim kom muaj kev sib koom ua lag luam hauv Suav teb, Fabmann tuaj yeem yog koj qhov kev xaiv zoo tshaj plaws vim tias peb muaj cov kws tshaj lij engineering pab pawg uas tuaj yeem tswj cov khoom siv raw, cuab yeej, thiab cov txheej txheem ntau lawm.