Vuam txoj cai rau thoob cov hniav ntawm excavator

1. Lub vuam txheej yuav tsum tsis txhob muaj qhov tsis xws luag xws li cov kab nrib pleb, weld beading, unwelded, staggered joint, thiab lwm yam.

2. Kev teeb tsa ntawm lub ntsiab tsis zoo rau lub thoob cov hniav vuam ntawm Hitachi interchangeable series excavators: thoob cov hniav tuam ntxhab txais cov hluav taws xob loj thiab cov vuam qeeb qeeb ntawm qhov chaw ua haujlwm kom ntseeg tau cov khoom zoo.

3. Dej txias, cua sov dissipation thiab hammering yuav tsum tau nqa tawm tam sim ntawd tom qab vuam los xyuas kom meej dispersion ntawm in-site kev nyuaj siab.

4. Cov kev cai nruj ntawm vuam tshuab thiab khoom siv. DC vuam tshuab yog saws, uas muaj cov yam ntxwv ntawm ib qho yooj yim arc striking thiab ruaj khov ignition. Qhov sib txawv me me, qhov ntev vuam thiab sib txuas vuam yuav tsum tau saws kom deb li deb tau ntawm qhov ua haujlwm tiag tiag ntawm vuam.

5. Thaum lub sij hawm vuam, lub thoob cov hniav ntawm lub excavator yuav tsum tau welded los ntawm sab hauv mus rau ob sab. Tom qab welding ib tug weld, txav lub vuam hlau 3 ~ 4 hli mus rau ob sab kom qhov no weld nias nce thiab nqis 1/3 ntawm cov weld yav dhau los. Nyob rau hauv txoj kev no, lub weld tuaj yeem ua ntu zus, thiab tag nrho cov tshuaj tsuag welding txheej welds tau sib npaug sib npaug, qhov saum npoo yog du, thiab kev sib sau yog zoo nkauj thiab dav.

6. Ua ntej welding, vuam hlau yuav tsum tau cua qhuav ntawm 350 degree rau 15 teev kom ntseeg tau qhov kev ntseeg siab ntawm cov thoob hniav vuam.

7. Thaum lub sij hawm txhaws welding, xyuas kom meej tias lub vuam filling txheej thiab weld ceg yog 16 hli.