The quality of the pre drilled malamine shelving panels must inspected to the items specified in the national standards. Need to check:
physical and mechanical properties,
drilled melamine panels
is also necessary to check whether the substrates meet the specified requirements. The following panel experts teach you how to judge the quality of white malamine pre drilled shelf panels.
Comparison methods and purchasing points of various pre drilled shelf panels
The national standard stipulates that the substrate used for the pre drilled shelf panels is :
plywood, particleboard, medium-density fiberboard, etc.,
it must selected and necessary processing, and can not leave the defects of the quality of the veneer. Thus,
the veneered substrate plywood should be not less than the second-class products:
the particleboard is not lower than the requirements of the first-class products:
and the medium-density fiberboard should not be lower than the requirements of the first-class products.
Web size tolerance
In the deviation of the length and width of the decorative veneer veneer of different substrates, when the substrate is plywood and particleboard, only a positive tolerance of 5 mm allowed, negative tolerance is not allowed. When the medium density fiberboard attached, positive and negative 3 mm can allowed.
The thickness deviation allowed to be between plus and minus 0.3-0.5 mm, and the difference between the diagonals should meet the requirements of the substrate product standard. The edge of the board is not more than 1 meter long and not more than 1 mm. The veneer veneer with a warpage of 6 mm or more must not exceed 1.0%.
The pre drilled shelf panels divided into three grades, first-class and qualified products. For example:
pre drilled shelf panels should ensure that the appearance quality of one side meets the specified grade requirements,
and the appearance quality of the other side is not lower than the requirements of qualified products. Some defects can only judged by visual inspection. Other defects are not allowed except for the fine items allowed to be . If a defect occurs, it will lowered depending on the seriousness of the defect.
Physical mechanics performance check
The national standard stipulates three indexes of water content, dip peeling and surface bonding strength. For example,
the base material is plywood, the water content allowed to be 6-14%,
the substrate is particleboard and medium density fiberboard, and the water content is 4-13%.
Article Summary: About How to judge the quality of pre drilled shelf panels? introduced here, help everyone. Although only knowing the price can better control the decoration budget, but do not forget to control the quality while controlling the budget. For more inquiries, please surf on www.yspanel.com
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