Tus qauv tsim pwm txiav txim siab qhov yooj yim ntawm lub tshuab demolding thiab nqa cov haujlwm. Tag nrho cov txheej txheem ntsug yog nruab nrog demolding slopes kom ntseeg tau tias tsis zoo demolding ntawm cov khoom. Cov pwm nta tshwj xeeb lifting lugs thiab tuaj yeem tsim kho los yog haum nrog cov chais kom hloov mus rau qhov sib txawv prefabrication vaj layouts, nyob ntawm cov txheej txheem ntau lawm. Cov qauv tsim cov ntsiab lus no txhim kho pwm kev ua tau zoo thiab kev nyab xeeb.
Rau siab - ntsev- tshuaj tsuag, siab - thaj chaw ntug dej hiav txwv, cov pwm yuav tsum tau tshwj xeeb los tiv thaiv- kev kho corrosion. Kev kho mob siab tshaj plaws yog tag nrho cov kub kub-dip galvanizing, nrog rau qhov nruab nrab zinc txheej tuab ntawm tsis pub tsawg tshaj 85 microns; qhov kev xaiv thib ob yog txau lub siab -kev ua tau zoo epoxy zinc- nplua nuj primer ua raws li cov txheej txheem polyurethane topcoat. Cov kev tiv thaiv no - kev tiv thaiv corrosion ua rau cov pwm ua haujlwm ntev.
Hauv cov ntsiab lus, plaub -legged hollow qhob thaiv pwm yog cov txheej txheem kev tshaj lij cov cuab yeej ua ke nrog kev ua haujlwm zoo tsim, hnyav- lub luag haujlwm steel qauv vuam, thiab ntev - lub sij hawm tiv thaiv -corrosion thev naus laus zis, muaj peev xwm ua haujlwm tsis tu ncua thiab ruaj khov ua tau zoo - pob zeb zoo yoj - tawg blocks.