Composite floor installation FAQ

1. The reason for the sound of the drum sound is due to the fact that the fixing is not true, mainly because the number of nails and keels, the board and the floor nails are small or the nails are not strong, and sometimes the shrinkage or the glue is unqualified due to the change of the moisture content of the board. To. Therefore, the process of strictly testing the moisture content of the board, the quality of the adhesive, etc. is particularly important. It can only be used after passing the test. The nail should not be too small during installation.

2. The main cause of uneven surface is the unevenness of the base layer or the deformation of the floor strip. During the construction, apply the level to level the surface of the keel, if it is not flat, adjust the slab. Ventilation slots should be made on the keel. A 10 mm ventilation gap should be left at the edge of the board. The insulation layer material must be dry to prevent the board from getting up after damp. The flatness error of the wooden floor surface should be within 1 mm.

3. The reason for the lack of strict seams is not only the installation in the construction is not standardized, the width error of the sheet is large and the processing quality is also an important reason.

4. The main reason for the local warping drum is that the board is too small or seamless, and the water pipe is leaking and dampening the wet floor. After the floor is paved, the floor paint should be painted completely. In daily use, it is necessary to prevent water from flowing into the lower part of the floor. It is necessary to clean the surface layer of water in time.

Double-Convex Spherical Lens

Double-Convex Lens, also named Bi-Convex Lens,composing of two convex surfaces, has a positive focal length. DCX Lens is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,projection optics systems, optical viewers applications etc.

We also supply kinds of plano-convex spherical lenses,plano-concave spherical lenses,bi-convex spherical lenses,bi-concave spherical lenses,meniscus spherical lenses,special spherical lenses,achromatic spherical lenses,ball lenses,sphere lenses etc..

Specification of our Spherical Lens as follow:
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals
*Dimension Tolerance +0.0 -- -0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating : AR coating options available :MgF2, VIS 0°, VIS-NIR, NIR I, and NIR II

Custom Wide Variety of Diameters and Focal Lengths.

Double-Convex Spherical Lens,Double-Convex Lenses,Double-Convex Ar Coated Spheric Lenses,Double-Convex Spheric Lens

China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com