Trapezoidal hniav sij hawm siv tawv tau muab faib ua qhov sib txawv MXL lub teeb pom kev zoo tshaj plaws, ultra-lub teeb XXL (tsis siv dav hauv kev ua lag luam), ntxiv-lub teeb XL, lub teeb L, lub nra hnyav H, ntxiv-hnyav XH, thiab ntxiv-hnyav XXH.
Arc hniav sij hawm siv tawv: HTD3M HTD5M HTD8M HTD14M HTD20M, puag ncig arc hniav synchronous siv muaj qhov tsav tsheb ua tau siab thiab lub suab qis.
Qhov ua tau zoo sib txawv:
1) Qhov kev ua tsis ncaj lub npoo ntawm arc hniav sij hawm siv yog ntau me dua, vim hais tias siv txoj phuam sib tsoo cov hniav thiab cov iav hniav sib tsoo zoo dua, yog li cov kis tau yooj yim kuj tseem dua;
2) Los ntawm txoj siv sia siv xaiv daim duab hauv phau ntawv, qhov nrawm qhov nrawm thauj-nqa cov peev xwm ntawm Arc hniav yog loj dua;
3) Feem ntau, arc hniav nyiaj ntau dua.
Xaus: Trapezoidal hniav muaj cov nyhuv polygonal, thiab cov voj voos ncig arc hniav muaj qhov zoo dua qub
xaiv khoom siv
Cov kev siv sij hawm siv xws li siv roj hmab thiab polyurethane (PU),
1) Cov roj hmab yog qhov muag me, qhov ua tiav qhov kev txwv ntawm lub vojvoog yog qhov me me, thiab qhov deformation me dua loj dua hauv qhov hnyav;
2) Polyurethane yog ib qho nyuaj (qee qhov ntxiv cov hlau xaim hlau), qhov ua tiav qhov kev txwv ntawm lub vojvoog yog qhov loj, thiab qhov deformation yog me me hauv qab qhov hnyav.
