Raws li loj- ncua, hnyav- cov khoom nqa nqa, kev nyab xeeb ntawm cov qauv thiab kev ua haujlwm ntev ntawm gantry cranes feem ntau nyob ntawm kev xaiv thiab kev ua tau zoo ntawm cov khoom siv. Cov ntaub ntawv tseem ceeb, suav nrog cable tais, outriggers, mus ncig teb chaws mechanisms, thiab auxiliary Cheebtsam, yuav tsum tau ib txhij ua tau raws li cov kev xav tau ntawm siab zog, zoo toughness, qaug zog tiv thaiv, thiab adaptability rau kev ua hauj lwm ib puag ncig kom ruaj khov nyob rau hauv ntev - lub sij hawm hnyav -load hauj lwm thiab complex huab cua tej yam kev mob.
Cov kab hluav taws xob thiab cov khoom siv hluav taws xob yog qhov tseem ceeb ntawm cov khoom thauj -cov kabmob ntawm cov gantry crane, feem ntau yog tsim los ntawm cov khoom siv siab -cov pa roj carbon zoo steel lossis qis- alloy siab- lub zog steel. Tsawg- alloy steels xws li Q345B thiab Q355B yog cov khoom siv zoo tshaj plaws rau lub thawv girders thiab truss beams vim lawv cov khoom muaj zog, zoo weldability, thiab zoo heev low-kub toughness. Cov hom hlau no txo qhov hnyav ntawm cov qauv thaum ua kom cov load{10}}cov kabmob muaj peev xwm, yog li txo qhov siab ntawm lub hauv paus thiab outriggers thiab txhim kho nruj thiab khoov tsis kam nyob rau hauv loj spans. Rau gantry cranes nrog ultra- loj spans los yog tshwj xeeb load yuav tsum, siab -lub zog steel ntawm Q460 thiab saum toj no kuj raug xaiv, ua tiav ib tug zoo zog- rau - luj piv los ntawm optimized cross{17}}sectional tsim. Nyob rau hauv cov cheeb tsam uas muaj kev sib hloov thiab kev thauj mus los, xws li cov pob qij txha sib txuas thiab vuam kub- cov cheeb tsam cuam tshuam, yuav tsum tau them nyiaj tshwj xeeb rau kev qaug zog thaum xaiv cov khoom. Kev siv cov hlau zoo-cov hlau tsis zoo thiab txhim kho cov txheej txheem microstructure los ntawm kev kho cua sov tuaj yeem ncua kev pib tawg thiab nthuav tawm, txuas ntxiv lub neej kev pabcuam. Rau gantry cranes ua hauj lwm hauv marine atmospheres lossis corrosive chemical ib puag ncig rau ncua sij hawm, ntev -ntev tiv thaiv-corrosion coatings feem ntau yog siv rau steel qauv nto, los yog weathering steel yog xaiv, siv nws alloying ntsiab los tsim ib tug ntom oxide zaj duab xis nyob rau saum npoo, slowing tus nqi corrosion.
Log, axles, thiab bearing vaj tse nyob rau hauv cov txheej txheem mus txawv tebchaws feem ntau yog ua los ntawm siab - zoo carbon steel los yog hlau alloy structural steel, xws li 45 steel thiab 40Cr, uas tau undergone quenching thiab tempering kom ua tau zoo lub zog thiab hnav tsis kam, ua kom ntseeg tau ntev - lub sij hawm dov kev khiav hauj lwm ntawm rails. Fasteners feem ntau siv siab - lub zog bolts ua los ntawm qib 8.8 lossis 10.9 alloy steel, muaj lub siab ua ntej thiab tiv thaiv -loosing peev xwm, ua kom ruaj khov ntawm cov pob qij txha txuas.
Lub tshuab hoisting nruas, pulleys, thiab hooks feem ntau yog tsim los ntawm cov txheej txheem forging, feem ntau yog los ntawm siab - zoo carbon steel los yog alloy steel, xws li 20Mn2 thiab 35CrMo. Tom qab tempering thiab deg hardening kev kho mob, lawv muaj txaus lub zog thiab muaj zog toughness los tiv thaiv nkig puas los yog ntau deformation thaum hnyav- load lifting thiab braking. Cov hlua hlau yog ua los ntawm ntau-strand siab- lub zog alloy steel hlau, nthuav tawm lub zog tensile zoo thiab hnav tsis kam, tswj kev ua haujlwm ruaj khov nyob rau hauv hnyav hnyav thiab siab - siv zaus.
Cov vaj tse thiab cov thawv sib txuas ntawm cov khoom siv hluav taws xob thiab kev tiv thaiv feem ntau yog ua los ntawm cov tuag- nrum aluminium alloy lossis hmoov-coated steel daim hlau, ntsuas lub teeb yuag, tiv thaiv corrosion, thiab electromagnetic shielding yuav tsum tau. Hauv kev tawg- pov thawj lossis siab - qhov kub thiab txias, cov cua sov tshwj xeeb- tiv taus thiab tawg- cov ntaub ntawv pov thawj kuj raug xaiv los ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov hluav taws xob.
Hauv cov ntsiab lus, kev xaiv cov ntaub ntawv tseem ceeb rau gantry cranes ua raws li cov hauv paus ntsiab lus ntawm lub zog sib txuam, kev ua tau zoo, kev hloov pauv ib puag ncig, thiab kev lag luam rationality. Los ntawm kev teeb tsa kev tshawb fawb thiab kev kho mob ntawm cov hlau sib txawv thiab cov alloys, cov cuab yeej ua tiav qhov zoo tshaj plaws sib npaug ntawm cov qauv kev nyab xeeb, kev ua haujlwm ruaj khov, thiab kev saib xyuas ruaj khov, muab cov khoom siv hauv paus rau kev ua haujlwm hnyav-.
