Qhov ntom ntawm polyurethane ncig vibrating npo meshes feem ntau txiav txim siab los ntawm cov khoom siv ntawm cov khoom siv polymeric polyurethane nws tus kheej. The typical density range for commonly used polyurethane is approximately 1.1 to 1.3 g/cm³-a figure that represents a significant weight reduction compared to metal screen meshes (such as steel, which has a density of approximately 7.8 g/cm³). Qhov qis qis no tsis tsuas yog txo cov load ntawm lub vibrating npo tshuab tab sis kuj yooj yim rau kev txhim kho thiab hloov pauv, thaum tib lub sijhawm txo qhov cuam tshuam los ntawm lub vijtsam mesh ntawm lub tshuab cov qauv txheej txheem thaum lub sijhawm vibration.
Qhov tseeb ceev ntawm polyurethane ncig vibrating npo mesh yog cuam tshuam los ntawm ob qho tib si cov khoom tsim thiab cov txheej txheem tsim khoom. Kev koom ua ke ntawm cov fillers-xws li calcium carbonate, talc, los yog iav fibers - ua kom ceev ceev thaum txhim kho kev puas tsuaj thiab tawv; conversely, kev siv me me ntawm foaming agents los yog lub teeb yuag fillers txo qhov ntom, yog li txhim kho elasticity thiab resilience. Furthermore, the uniformity of curing during the casting or molding process affects the density distribution within the screen mesh, a factor directly correlated with the mesh's durability and screening efficiency.
Density design constitutes a critical factor in ensuring the optimal performance of polyurethane circular vibrating screen meshes. Qhov qis dua ua kom yooj yim oscillation ceev ntawm lub vijtsam mesh nyob rau hauv siab - zaus vibration, yog li boosting screen efficiency; conversely, ib tug nruab nrab nce nyob rau hauv ntom tuaj yeem txhim kho kev puas tsuaj thiab ua rau cov khoom siv lub neej ntev. Los ntawm kev kho cov khoom tsim raws li cov khoom siv tshwj xeeb uas tau ua tiav thiab cov qauv ntawm lub tshuab vibrating npo, cov tuam ntxhab tuaj yeem ua tiav qhov kev pom zoo ntawm qhov ntom, hardness, thiab elasticity, yog li ua tau raws li kev soj ntsuam ntau yam ntawm ntau qhov chaw muaj kev lag luam.
