Feem ntau hom dej ditch gratings muaj xws li steel gratings thiab yas gratings. Lawv cov txheej txheem tsim khoom tau piav qhia luv luv hauv qab no.
Steel gratings: Ua ntej, xaiv cov khoom siv hlau tsim nyog. Tom qab ntawd, cov hlau raug txiav mus rau qhov loj me raws li cov qauv tsim. Tom ntej no, cov crossbars thiab cov kabmob tiaj tus steel yog tsau ua ke los ntawm kev siv vuam los yog phau ntawv vuam. Kev kub siab vuam yog ua los ntawm kev siv lub siab - siab welding tshuab, uas ua rau vuam zoo thiab ceev; phau ntawv welding muaj ntau dua yooj. Thaum kawg, kev kho saum npoo yog siv, xws li kub-dip galvanizing, uas txhim kho corrosion kuj ntawm cov grating thiab txuas nws lub neej kev pab cuam.
Plastic gratings: Ua ntej, cov khoom siv yas, feem ntau yog polypropylene, tau npaj. Cov ntaub ntawv raw yog rhuab thiab melted nyob rau hauv ib lub tshuab txhaj tshuaj molding thiab ces txhaj rau hauv pwm, qhov uas lawv raug tsim nyob rau hauv ib tug tshwj xeeb siab thiab kub. Tom qab demolding, cov gratings raug txiav kom tshem tawm cov burrs thiab lwm yam khoom siv ntau dhau. Tom qab kev soj ntsuam zoo, lawv tau ntim thiab xa tawm.
