Sib piv cov Shore Hardness ntawm Rail Pads nrog Track Stiffness Zoning Tsim
Yog vim li cas "kev nruj zoning tsim" yuav tsum tau es tsis txhob ntawm uniform hardness?
Cov seem tau ntsib ntau qhov sib txawv ntawm cov loads thiab cuam tshuam ntau yam - hloov thiab nkhaus qis qis xav kom muaj zog ntau dua los tiv thaiv kev deformation, thaum cov seem ncaj yuav tsum tau nruj me ntsis rau cushioning. Uniform hardness tsim abrupt stiffness hloov ntawm hloov - ncaj junctions, ua rau hnyav log-rail cuam tshuam. zoning tsim xaiv qhov sib txawv hardness pads raws li kev ntxhov siab hauv zos, ua kom muaj kev sib hloov ntawm qhov tawv nqaij. Qhov no zoo txuas ntxiv lub neej ntawm cov khoom thiab txhim kho kev nplij siab ntawm kev caij tsheb.
Qhov xwm txheej twg haum rau qhov siab piv rau qis Shore hardness pads?
High Shore hardness pads (Shore A 60–70) yog siv nyob rau hauv qhov tseem ceeb hloov chaw (points, crossings) thiab hnyav-haul nkhaus low rails. Cov cheeb tsam no yuav tsum muaj kev nruj nruj kom tsis txhob muaj kev sib haum xeeb ntawm txoj kev tsheb ciav hlau thiab tuav cov geometry. Low Shore hardness pads (Shore A 40-50) haum raws li cov qauv ncaj nraim, choj xaus, thiab qhov tunnels, qhov zoo tshaj elasticity absorbs kev co thiab tiv thaiv substructures.
Yuav ua li cas kom muaj nuj nqis kev sib raug zoo ntawm ncoo hardness thiab taug qab stiffness?
Nyob rau hauv tib lub thickness thiab load, pad Shore hardness correlates zoo nrog khiav nruj. Txhua 10- taw tes nce hauv Shore A hardness nce ntsug ntsug li ntawm 15% -20%. Qhov kev sib raug zoo no tsis yog -linear: dhau ntawm qhov pib, qhov tawv nqaij loj hlob qeeb raws li cov khoom hloov pauv ntawm elastic mus rau yas deformation. Tsim yuav tsum tau sim calibration ntawm hardness-stiffness nkhaus rau precision.
Cov teeb meem dab tsi tshwm sim los ntawm qhov sib txawv hardness ntau dhau ntawm cov ntaub ntawv uas nyob ib sab?
Qhov sib txawv hardness loj ua rau "qib-zoo li" kev sib hloov tawv tawv. Kev tsheb ciav hlau hla hla cov kev sib tshuam no ua rau muaj kev cuam tshuam sai sai, nrawm lub log- tsheb ciav hlau hnav thiab ua rau cov yas deformation ntau dhau ntawm cov ntaub so ntswg. Nyob rau tib lub sijhawm, geometric irregularities mus tas li (ntu tsis sib xws) tsim ntawm lub interface. Cov qauv yog li txwv qhov sib txawv hardness ntawm cov cheeb tsam nyob ib sab kom tsis pub ntau tshaj 10 Shore A units.
Yuav ua li cas kom paub tseeb tias cov ntaub ntawv hardness ua raws li ntawm -site?
Siv lub portable Shore durometer (Hom A lossis D, raws li cov khoom siv) rau kev ntsuas qhov chaw ncaj qha. Xyuas kom lub ncoo tau txais kev txhawb nqa ntawm qhov tawv, tiaj tus kom tsis txhob deflection thiab ua kom lub siab tsis sib xws. Siv peb qhov ntsuas ntawm ib lub ncoo ntawm qhov chaw sib txawv thiab qhov nruab nrab cov txiaj ntsig. Sib piv qhov nruab nrab los tsim cov kev qhia tshwj xeeb los txiav txim ua raws. Rau cov ntsia hlau ntsia, rub cov npoo rau kev ntsuas lossis ua cov qauv ntsuas kom siv tau qhov kev siv zoning.