Kev tshuaj xyuas qhov muag
Cov Txheej Txheem Nto: Siab- cov hoses zoo muaj qhov du, txawm tias qhov chaw tsis muaj npuas, tawg, lossis impurities, nrog lub teeb pom kev zoo tawm -dawb lossis pob tshab; Cov khoom tsis zoo feem ntau pom daj, blackening, los yog ntxhib, grainy zoo nkauj.
Cov qauv tsis sib xws: Rau cov xaim- cov hlua txuas ntxiv lossis cov corrugated, cov corrugations yuav tsum sib npaug sib npaug thiab tsis tu ncua; Sab hauv steel hlau yuav tsum yog tuab tuab thiab nruj nreem kaw, tsis muaj looseness los yog misalignment.
Cov ntaub ntawv sau npe: Cov khoom lag luam raug cai qhia meej cov ntaub ntawv xws li cov qauv siv tau, cov lus qhia tshwj xeeb, thiab hnub tsim khoom; ua ntej cov khoom uas ua tau raws li lub teb chaws tus qauv.
Kev kuaj lub cev
Flexibility Test: Khoov lub hose me ntsis; siab - cov khoom zoo yuav tsis pom kev ua kom dawb, tawg, lossis tawg. Ua nruj dhau los yog mos heev qhia tau tias muaj qhov tsis zoo.
Impact Resistance Test: Tso cov qauv hose rau hauv av los yog maj mam txav ntawm nws ntug; siab - cov khoom zoo yuav flatten es tawg. Kev tawg qhia tias muaj ntau ntau ntawm calcium hmoov muab tub lim.
Airtightness Test: Thaiv ib kawg ntawm lub hose thiab tshuab cua mus rau lwm qhov; lub sealing kev ua tau zoo yog siv tau yog tias tsis muaj qhov pom ntawm huab cua to.
Khoom siv thiab kev ua raws cai
Kev sib piv qhov hnyav: Rau cov hoses ntawm tib txoj kab uas hla thiab ntev, hnyav hnyav feem ntau qhia txog qhov sib ntxiv ntawm cov impurities ntau dhau lossis cov khoom siv tsis zoo.
Kev Tshawb Fawb Kev Tsim Nyog: Thov thib peb-cov ntaub ntawv xeem thib peb los ntawm tus neeg muag khoom kom paub meej tias cov kev ntsuas xws li lub zog tensile thiab qib plasticizer tsiv teb tsaws ua tau raws li cov qauv hauv tebchaws.
Kev ntsuas huab cua tiv thaiv : Rau cov hoses npaj rau lub sijhawm ntev - siv sab nraum zoov, ua qhov tseem ceeb rau cov khoom lag luam uas muaj UV- cov tshuaj tiv thaiv los tiv thaiv kev laus ntxov ntxov thiab tawg.
