How does the running speed of the mesh belt affect the water_Gongyi Fangrui Zhenghe Machinery Factory

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How does the running speed of the mesh belt affect the water

Author：admin source：未知 Release date：2026-05-07 16:58

Information summary：

The running speed of the mesh belt is a key process parameter in the forming of fiber cement boards.It directly changes the compactness of the slurry layer,the arrangement of fibers,and the structure of the blank,thereby significantly affect...

Cement fiberboard equipment 　

When the mesh belt speed is too fast,the time for stepping and spreading the slurry is shortened,and the slurry does not have enough time to self-level and settle compactly.The interior of the blank becomes loose and porous,the fibers are loosely intertwined,and there are many capillary pores with strong connectivity.Meanwhile,a fast belt speed can cause uneven thickness of the slurry layer and increased internal voids.After curing,the board has a well-developed pore structure,making it easy for water to penetrate through capillary channels,significantly increasing water absorption and reducing the water resistance and frost resistance of the board.

　　If the mesh belt speed is too slow,the slurry stays on the belt for too long,giving ample time for self-leveling and compacting,resulting in tightly arranged particles and fine,well-sealed internal pores.The overall density of the blank is greatly improved.The formed blank has a uniform and dense structure,capillary paths are blocked,water penetration becomes more difficult,and the board’s water absorption decreases.

　　However,the speed should not be too slow,otherwise defects such as slurry accumulation,interlayer delamination,and overly thick surfaces may occur,which can damage the stability of the internal structure.In production,the slurry concentration and fiber ratio need to be matched,and a reasonable mesh belt speed should be set.This ensures the surface forming quality while controlling the blank's density and stabilizing the pore structure,keeping the board's water absorption within the standard allowable range.

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