Q690D hlau, nrog nws qhov tsawg kawg nkaus tawm lub zog ntawm 690 MPa thiab zoo heev qis -kub toughness (kuaj ntawm -20 degree), yog cov khoom siv saum toj kawg nkaus hauv kev tsim cov tshuab hnyav. Nws raug xaiv tshwj xeeb rau cov khoom tseem ceeb tshaj plaws, muaj kev ntxhov siab ntau qhov uas tsis ua haujlwm tsis yog qhov kev xaiv thiab qhov uas txo qhov hnyav ncaj qha txhais mus rau kev txhim kho kev ua haujlwm thiab kev ua haujlwm zoo.
Nov yog cov ntawv thov tseem ceeb ntawm Q690D hauv kev tsim cov tshuab hnyav:
1. Lifting & Hoisting Machinery
Qhov no yog ib qho ntawm cov ntawv thov tseem ceeb tshaj plaws.
Crane Booms & Jibs: Tshwj xeeb tshaj yog rau ultra-siab- lub peev xwm mobile cranes (tag nrho-sav, crawler), ntauwd cranes, thiab offshore lattice boom cranes. Siv Q690D tso cai rau:
Qhov ntev thiab qhov hnyav tsawg kawg nkaus rau qhov muaj peev xwm muab tau, txhim kho kev ncav cuag thiab txav mus los.
Txo lub cev hnyav, uas ua rau kom muaj peev xwm nqa nqa.
Crane Main Beams & Ncej: Lub ntsiab thauj khoom -cov kabmob ntawm cov gantry cranes thiab cov nyiaj siv ua haujlwm loj cranes tau txais txiaj ntsig los ntawm nws lub zog siab los tswj cov khoom hnyav.
2. Cov khoom siv mining & Quarrying
Excavator Booms, caj npab, thiab thoob txuas: Rau super- loj hydraulic mining shovels thiab excavators (piv txwv li, cov thoob muaj peev xwm tshaj 20 cubic meters). Cov khoom no muaj kev khoov loj thiab torsional kev nyuaj siab thaum khawb. Q690D muab lub zog tsim nyog los tiv thaiv kev poob siab ntawm lub voj voog thaum txo qhov hnyav uas lub tshuab hydraulic yuav tsum txav mus.
Haul Truck Frames & Chassis: Lub ntsiab thav duab ntawm ultra-chav mining tsheb thauj khoom (piv txwv li, 200+ ton payload) raug rau qhov hnyav hnyav thiab hnyav hnyav los ntawm kev thauj khoom thiab cov av ntxhib. Q690D ua kom muaj qhov hnyav tsis tau muaj zog- tsim kom zoo.
3. Earthmoving & Siv Machinery
Cov Cheebtsam tseem ceeb ntawm cov tsheb loj loj thiab cov log tsheb thauj khoom: xws li cov ncej loj, nqa caj npab, thiab ROPS / FOPS (Yob-Over / Poob Khoom Tiv Thaiv Cov Qauv) cabins.
Piling Machinery: Rau cov thawj coj (masts) thiab rauj cov lus qhia ntawm pawg tsav tsheb loj, qhov chaw siab zog thiab rigidity yog qhov tseem ceeb.
4. Kev thauj tshwj xeeb & Hnyav Haulage
Trailer Frames rau Modular Transporters (SPMTs): Cov tsheb thauj khoom no nqa ntau txhiab tons. Kev siv Q690D hauv lawv cov kab teeb thiab decks yog qhov tseem ceeb kom ua tiav lub zog uas yuav tsum tau ua yam tsis ua rau lub trailer nws tus kheej hnyav hnyav.
Ncej ntawm Tshwj Xeeb Tawm- Tsheb loj.
5. Khoom siv & Chaw nres nkoj Machinery
Boom thiab Structure Cheebtsam ntawm Nkoj - mus rau -Shore (STS) Container Cranes thiab Mobile Harbor Cranes. Lub zog siab tso cai rau ntev booms los pab cov nkoj loj dua, thiab -20℃toughness ua kom muaj kev ntseeg siab hauv chaw nres nkoj ib puag ncig uas feem ntau txias thiab cua.
6. Forestry & Agricultural Machinery
Ncej thiab Booms ntawm Siab -Cov Peev Xwm Sau thiab xa tawm hauv hav zoov.
Qhov tseem ceeb ntawm siab -horsepower tsheb laij teb thiab cov khoom sib txuas ua rau muaj kev ntxhov siab ntau.
Vim li cas Q690D raug xaiv rau Cov Ntawv Thov no: Kev Tsim Kho Kev Tsim Nyog
Qhov kawg Strength-rau-Qhov hnyav piv: Qhov no yog tus tsav tsheb tseem ceeb. Nyob rau hauv mobile machinery, txhua kilogram txuag nyob rau hauv cov qauv yog ib kilogram ntxiv rau lub payload los yog txo cov roj noj. Q690D muab lub zog siab tshaj plaws ntawm cov qauv hlau uas muaj ntau tshaj plaws (Q-series), ua kom muaj qhov hnyav tshaj plaws.
Dynamic Load thiab Fatigue Resistance: Heavy machinery ua haujlwm nyob rau hauv hnyav cyclic thiab cuam tshuam loading. Q690D's zoo{2}}grained, quenched & tempered microstructure muaj superior qaug zog, ncua lub neej kev pab cuam ntawm cov khoom.
Kev nyab xeeb thiab kev ntseeg siab nyob rau hauv Cov Txheej Txheem hnyav: "D" qib toughness (- 20℃cuam tshuam) yog tsis sib tham. Machinery feem ntau ua haujlwm hauv:
Cov huab cua txias (arctic mining, kev tsim kho lub caij ntuj no).
Ib puag ncig qhov chaw dynamic loading (kev poob siab, cuam tshuam) ua rau cov khoom siv qis dua - mus rau - qhov kub thiab txias hloov pauv. Lub guaranteed toughness tiv thaiv kev puas tsuaj brittle puas.
Qhov Kev Ua Kom Zoo Tshaj Plaws: Lub zog siab dua tso cai rau kev siv cov thinner, siab - lub zog daim hlau, ua kom muaj kev cog lus ntau dua thiab ua kom zoo tshaj plaws rau cov khoom siv tshuab.
Kev txiav txim siab tseem ceeb rau kev siv Q690D:
Nws daim ntawv thov tsis yog tsis muaj kev sib tw. Fabricating nrog Q690D yuav tsum tau ua kom muaj peev xwm tsim tau:
Precision Txiav: Nyiam laser lossis plasma txiav kom tsis txhob muaj cua sov- cuam tshuam cheeb tsam (HAZ) hardening.
Stringent Welding Protocols: Requires low-hydrogen processes (e.g., GMAW, SAW with specially formulated wires), mandatory preheating (often >100 degree), tswj nruj ntawm kev sib tshuam ntawm qhov kub thiab txias, thiab siv qhov sib txuam lossis kev sib tw siab tshaj - lub zog siv tau (piv txwv li, rau 690 MPa steel).
Tom qab- Kev Kho Hniav Kub Kub (PWHT): Feem ntau yuav tsum tau siv rau kev sib tw, tuab welds kom txo tau qhov kev ntxhov siab thiab kho HAZ toughness.
Advanced NDT: Kev siv ntau ntawm Ultrasonic Testing (UT) thiab Sib Nqus Particle Testing (MT) yog qhov yuav tsum tau ua kom ntseeg tau qhov kev ncaj ncees ntawm vuam, vim qhov tsis xws luag tsis kam rau cov khoom siv siab -.
Xaus:
Hauv kev tsim cov tshuab hnyav, Q690D yog cov khoom siv "hnyav-" xaiv. Nws tau tshwj tseg rau cov tswv cuab tseem ceeb tshaj plaws ntawm cov khoom siv loj tshaj plaws thiab muaj zog tshaj plaws, qhov uas thawb cov kev txwv ntawm kev ua tau zoo, kev them nyiaj, thiab kev ntseeg tau ua pov thawj nws cov nqi khoom siab thiab xav tau kev tsim khoom. Nws siv yog ib qho cim ntawm kev ua haujlwm siab, siab -kev ua haujlwm tshuab tsim.