Ua rau tawg ntawm ripper beams
Thaum lub bulldozer ua haujlwm nyob rau hauv ib lub mine loj, ib tug ripper feem ntau yog siv los plows cov av tawv thiab pob zeb ua ntej bulldozing. Yog li ntawd, lub ripper yuav tsum muaj lub zog muaj zog. Lub crossbeam ntawm lub ripper yog qhov tseem ceeb ntawm kev ntxhov siab. Thaum lub sij hawm siv, cov welds ntawm lub crossbeam yog nquag mus tawg thiab tsis ua hauj lwm. Cov laj thawj tseem ceeb ntawm kev tawg ntawm cov nqaj welds yog raws li hauv qab no:
1. Cov khoom siv lub tes tsho muaj qhov tsis zoo weldability thiab yooj yim rau quenched thiab tawg;
2. Cov nplais oxide nyob rau hauv qhov chaw yuav tsum tau welded tsis raug tshem tawm ua ntej vuam, ua rau tsis zoo vuam fusion;
3. Thaum lub sij hawm vuam txheej txheem, tam sim no thiab voltage yog siab dhau lawm thiab cov cua kub input yog loj, uas ua rau ib tug nce nyob rau hauv txias tawg rhiab heev. Nyob rau tib lub sijhawm, cov nplej loj ntawm cov qauv hauv thaj chaw tshav kub cuam tshuam yog ntxhib, uas txo lub zog ntawm cov nqaj vuam;
4. Ntau dhau vuam tam sim no yuav hlawv Mn, Si thiab lwm yam alloying ntsiab nyob rau hauv cov muab tub lim hlau. Kev txo qis ntawm deoxidizer yuav ua rau muaj kev nce ntxiv ntawm cov weld pores thiab tawg qhov chaw, txo lub zog ntawm qhov chaw weld.
