Sea cucumber boxes, as the name suggests, dedicated to fine sea cucumber refrigerated transport. According to different sizes of sea cucumber, sea cucumber box a variety of specifications. Commonly used resin foam polystyrene (PS), polyurethane (PU), polyvinyl chloride (PVC), polyethylene (PE), urea formaldehyde (UF), phenol-formaldehyde (PF), epoxy (ER) , silicone (OS), polyvinyl formals, cellulose acetate and polymethyl methacrylate (PMMA), etc., foam insulation box Weifang, in recent years, the increasing variety of foam insulation box Laiwu, such as polypropylene (PP) , polycarbonate (PC), polytetrafluoroethylene (PTFE), nylon (PA) and other species has also been put into operation, but the most commonly used, the largest amount of resin varieties of the first five. The main characteristics of foam packaging and design selection points 1), light weight, and has a certain compression, tensile strength, foam insulation box, Shandong, supported by its own strength can wipe the surface protective layer does not need to pull to pieces, to avoid thermal bridges. 2) EPS plate in a density of 30 ~ 50 kg / m3 range, minimum thermal conductivity values; average temperature at 10 ℃, density of 20kg / m3, the thermal conductivity of 0.033 ~ 0.036W / (m · K); density less than When 15 kg / m3, thermal conductivity increases sharply with decreasing density; density EPS plate 15 ~ 22 kg / m3 is suitable for external insulation. 3) for the exterior wall and roof insulation, generally does not produce significant moisture problems. But long-term EPS plate side in hot and humid environment, foam insulation box, the other side is cold environment steam poor materials and are thoroughly closed; or when the roofing layer fails, EPS board could seriously damp, thus resulting in severe performance degradation of insulation. 4) When used in cold storage, air conditioning and other low-temperature pipe insulation, vapor barrier must surface of the EPS-board. Foam insulation boxes Linyi, a great foam (certified), foam insulation foam box from Shandong great Limited. Shandong great foam Ltd. (www.rzdayou.com) Shandong Rizhao, plastic materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Foam in great leadership with the staff warmly welcome all inquiries negotiations to create a better future for much foam.