Optical fiber cable section box board and its shaping method

Abstract

The invention discloses an optical fiber distribution box board and the forming method thereof. The box board comprises two flaky molding compound layers (2) and a wood artificial board layer (1) positioned between the two flaky molding compound layers (2). The forming method of the box board adopts the following steps: firstly, the layer of cured flaky molding compound is laid on a die at the temperature of 120-160 DEG C; secondly, the heated and dried wood artificial board at the temperature of 110-140 DEG C is positioned on the well laid flaky molding compound (2); thirdly, another layer ofcured flaky molding compound is laid on the wood artificial board (1); and fourthly, the flaky molding compound layers (2) and the wood artificial board layer (1) are molded into a whole through hotdie forming. The box board produced by adopting the forming method of the invention has the advantages that the rigidity is high, the heat transfer coefficient is small, the possibility of dew is little, the cost is low, the stress is small, the specific strength and the specific rigidity are high, the possibility of flexural deformation or long-term creep is little, the consumption of the flaky molding compound is low, the service life is long, and the protective sealing effect of the box body can be effectively ensured.

Description

Technical field: [0001] The invention relates to a box plate of an optical cable transfer box and a forming method thereof. Background technique: [0002] The optical cable transfer box is a connection device that provides cable termination and jumper connection for the backbone layer optical cable and the distribution layer optical cable. Since it is generally installed outdoors, the most fundamental requirement for it is to be able to withstand drastic changes in climate and Harsh working environment, in other words, it must have the characteristics of waterproof condensation and rigidity (impact damage resistance). It is very difficult to ensure the service life of the optical cable transfer box by maintaining the above-mentioned stable and reliable performance of the optical cable transfer box, which puts forward extremely strict requirements on the material and process of the optical cable transfer box. [0003] At present, the box body of the optical cable transfer bo...

AI Technical Summary

Problems solved by technology

However, there is still a defect in the box board formed by pressing the sheet molding compound, that is, in order to meet the mechanical strength of the optical cable transfer box body, that is to say, in order to ensure the strong rigidity of the box body, this type of sheet molding plastic box The board is often more than ten millimeters thick, and the negative effect of the large thickness of the sheet molding plastic box board is that the amount of sheet material is large, the cost is high, the residual stress in the forming process is large, the specific strength and specific stiffness are low, and it is easy to cause the box door. The deflection deformation or long-term creep will adversely affect the protection (IP66, IP65) sealing of the box and greatly shorten the service life of the optical cable transfer box

[0005] In addition, in order to achieve long-term anti-aging and improve the effect of appearance quality, most of the box boards pressed and formed by sheet molding compound are subjected to surface coating treatment after the mold in the production process, because this surface coating treatment includes scraping Putty repair, water washing and sanding, cleaning and degreasing, primer spraying, re-sanding, finishing paint and other complicated processes, therefore, pressing this kind of sheet molding plastic box board not only uses a lot of energy such as water and electricity, but also Moreover, it will bring different degrees of pollution to the environment due to the spraying of primer, sanding and finish paint.

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