Kev txwv tsis pub cov nplaim taws txiav thiab txoj cai rau ultra- siab- siab waterjet (UHP Waterjet) txiav rauS500 QLcov phaj tuab yog tsav los ntawm qhov tseem ceeb xav tau los khaws cov khoom zoo, cua sov- kho microstructure ntawm no siab - steel kev ua tau zoo. Txhua qhov thermal lossis mechanical puas rau qhov microstructure no tuaj yeem ua rau muaj kev puas tsuaj loj hauv - kev pabcuam tsis ua haujlwm.
Nov yog cov ncauj lus kom ntxaws ntawm "vim li cas" tom qab qhov kev qhia nruj no.
Part 1: Vim li cas nplaim taws txiav (thiab Standard Plasma Cutting) yog nruj me ntsis txwv tsis pub
Qhov teeb meem yog irreversible thermal puas rau lub Quenched & Tempered (Q&T) qauv.
1. Kev puas tsuaj ntawm tshav kub-Teb chaws cuam tshuam (HAZ)
Txheej txheem:Qhov khaus, thaj chaw kub ntawm cov nplaim taws lossis ntshav arc (3000℃+) tsim lub pas dej me me thiab ua kom sov ib qho nqaim ntawm cov khoom uas nyob ib sab zoo tshaj nws qhov kev hloov pauv tseem ceeb (Ac3).
Kev puas tsuaj loj:Ib puag ncig loj, txias phaj ua raws li qhov nruab nrab quench. Qhov no ua rau lub tshav kub kub tam sim ntawd rov- tawv mus rau hauv untempered, siab -carbon martensite.
Qhov tshwm sim:Ib qho nqaim, nyuaj heev (feem ntau 600-700 HV), thiab embritttled "dawb txheej" cov ntaub ntawv raws ntug txiav. Thaj chaw no yog:
Kev tawg heev -sensitive:Yooj yim rau micro- tawg los ntawm thermal stress ib leeg.
Ib tug zoo meej qaug zog crack pib:Nyob rau hauv cyclic loads (raws li nyob rau hauv lub crane boom), cov kab nrib pleb yuav nucleate ntawm no ua ntej.
Ib qhov chaw ntawm hydrogen-induced cracking (HIC):Nplaim txiav qhia cov hydrogen los ntawm cov pa roj carbon monoxide rau hauv qhov chaw tawg.
2. Thermal Softening thiab tshaj -Tempering
Tsuas yog sab nraum qhov chaw re-hardened cheeb tsam, cov hlau yog rhuab mus rau qhov kub thiab txias ntau tshaj -tempers lub hauv paus hlau.
Qhov no tsim ib qho chaw softened qhov twg cov tawm los thiab tensile zog yuav poob los ntawm 20-30% los yog ntau tshaj, tsim ib tug tsis muaj zog txuas nyob rau hauv lub siab-lub zog tivthaiv.
3. Kev Taw Qhia Txog Kev Nyuaj Siab Loj
Qhov huab cua thermal gradient locks nyob rau hauv siab tensile residual stresses ntawm qhov txiav ntug, uas ntxiv rau cov kev pab cuam stresses, txhawb kev tsis ua hauj lwm ntxov ntxov thiab kev nyuaj siab corrosion cracking.
Rau S500QL, qhov kev puas tsuaj thermal no tsis tuaj yeem lees txais thiab tsis tuaj yeem kho tau zoo los ntawm kev tshaj tawm - txiav kev sib tsoo ib leeg, vim tias qhov cuam tshuam microstructure txuas mus rau hauv qab ntawm qhov pom.
Ntu 2: Vim li cas Ultra-High-Kev Txiav Waterjet yog qhov yuav tsum tau ua
Waterjet txiav yog txheej txheem txias txias. Nws tshem tawm cov khoom los ntawm abrasive yaig, tsis kub. Qhov no ua rau nws tshwj xeeb haum rau S500QL.
1. Zero Thaum tshav kub kub-Affected Zone (HAZ)
Txheej txheem:Ib tug kwj ntawm dej siab mus rau 60, 000 - 90,000 psi (4000 - 6200 bar) tov nrog abrasive garnet particles erodes cov khoom ntawm ib tug microscopic theem.
Qhov tseem ceeb tshaj plaws:Cov khoom kub nce yog qhov tsis txaus ntseeg (feem ntau <50 degree).Tnws Q&T microstructure tseem tsis hloov tag nrho mus txog qhov txiav ntug. Tsis muaj re- hardening, tsis softening, thiab tsis hloov microstructure.
2. Tsis Muaj Kev Taw Qhia Kev Nyuaj Siab (Piv rau Lwm Txoj Kev Txias)
Thaum sawing lossis milling tseem "txias," lawv siv cov khoom siv hluav taws xob thiab thermal (los ntawm kev sib txhuam) kev ntxhov siab. Cov no tuaj yeem ua rau:
Ua haujlwm- khov lossis micro- kua muag ntawm ntug.
Burrs uas ua raws li kev ntxhov siab concentrators.
Distortion nyob rau hauv nyias -walled los yog complex qhov chaw.
Waterjet qhov zoo:Lub txiav quab yuam yog tshwj xeeb tsawg thiab purely localized. Nws qhia zoo li tsis muaj kev ntxhov siab lossis qhov tsis sib xws, khaws cia lub phaj flatness thiab qhov kev ntxhov siab hauv lub cev.
3. Superior Edge Quality thiab Geometric Freedom
Ntug Zoo:Ua kom du, matte tiav nrog tsawg taper. Cov ntug no feem ntau npaj rau vuam yam tsis muaj kev siv tshuab ntxiv, vim nws huv, oxide- dawb, thiab zoo ib yam.
complexity:Muaj peev xwm txiav cov duab sib txawv, me me radii, thiab ntse sab hauv cov ces kaum yam tsis tau pib qhov, uas yog tsis yooj yim sua rau saws thiab nyuaj heev rau mills ntawm tuab phaj.
4. Kev tshem tawm cov haujlwm thib ob
Lub nplaim taws- txiav ntug ntawm S500QL yuav xav tau kev sib sib zog nqus sib sib zog nqus (5+ hli tshem tawm) thiab kev sim hnyav hnyav kom ntseeg tau tias cov txheej txheem puas ploj mus - cov txheej txheem kim thiab tsis paub meej.
Lub dav hlau dav hlau- txiav ntug yog qhov kawg, npaj tau-- siv ntug. Nws tsuas yog xav tau lub teeb deburring, txuag lub sijhawm loj, nqi, thiab khoom siv.
Comparative Summary: Kev Txiav Txim Matrix
Xaus: Txoj Cai Lij Choj yog raws li kev pheej hmoo txo qis
Rau S500QL- cov khoom siv hauv kev nyab xeeb- tseem ceeb, qaug zog- cov qauv thauj khoom xws li crane booms- qhov kev pheej hmoo ntawm kev nthuav qhia qhov tsis txaus ntseeg (micro- tawg hauv HAZ brittle) yog qhov tsis lees txais. Tus nqi ntawm qhov ua tsis tiav yog ntsuas hauv tib neeg lub neej thiab ntau lab ntawm cov khoom siv thiab lub sijhawm poob.
Nplaim txiav yog txwv tsis pub vim nws lav qhov tsim ntawm qhov tsis zoo ntawm cov khoom.
UHP Waterjet raug tso cai vim nws lav qhov kev khaws cia ntawm cov khoom siv ua haujlwm thaum muab qhov tseeb, kev ntxhov siab- txiav dawb.
Tus nqi siab dua ntawm kev txiav waterjet yog qhov tsis yog - kev pov hwm them nqi kho mob sib tham tau them los xyuas kom muaj kev ncaj ncees ntawm tag nrho cov khoom muaj txiaj ntsig siab -. Nws yog cov txheej txheem nkaus xwb uas muab qhov tseeb tseeb tias qhov txiav ntug yog qhov muaj zog thiab txhim khu kev qha raws li niam txiv phaj.