Product details

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The four products in the picture above are inner coated glass tubes, powdered glass tubes, outer coated glass tubes, and sanded glass tubes

Inner coated glass tubes: that is, the substrate is glued to the glass tube first, and the thickness of the PET optical astigmatism film covered with glass tubes is 0.035mm; the transmittance between 85-95 to replace the astigmatism film with different light transmittance is adjusted at will, which is a good process for producing high-efficiency lamps, and the environmental protection level reaches food grade; Due to the difficulty of the process technology, there is a schematic diagram of the lamination process at the end of this page, and the company can OEM install

Frosted glass tube: It is a principle of refracting light astigmatism by acid corroding countless small holes invisible to the naked eye on the glass wall; It is divided into inner Mongolian sand glass tube and double-sided sand glass tube, the light transmittance is between 93-95, and the general installation process will have spots, but the process of producing high-efficiency lamps is originally a process of studying how to shield light spots, and there are many ways; In addition, this sand glass tube is a good material for the production of purple light tubes and plant growth lamps, which will not change the wavelength of light and will not be distorted, and can also shield the defects in the tube. Defect of this product: The glass production process is not environmentally friendly.

Outer coated glass tube: the outer wall of the glass tube is covered with a layer of PET astigmatism shrink film, with a light transmittance of about 90; The modified product is mainly for North American countries, which require explosion-proof glass, that is, the shape of the glass tube is rotten or the lamp is not scattered, and any live part cannot be exposed; Disadvantages: The equipment requirements for outer lamination are relatively high and the cost is high. Powdered glass pipes: water-separated coatings and oil-based coatings, at present, this technology is relatively mature and used by many factories, so I won't do much verbosity

Card slot glass tube: belongs to high borosilicate thermal explosion-proof glass material, high light transmittance will not be alkalized, high hardness and high melting point, small coefficient of thermal expansion, and will not burst with sharp temperature changes; The glass tube can be used with the above astigmatism technology to reduce the process cost; No equipment, no gluing or even spraying, a soldering iron can be installed by hand and can be installed efficiently for fools. Disadvantages: The cost of glass materials is relatively high.

Schematic diagram of the process principle of inner film lamp: