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一、问题和原因据调查,电冰箱出现的主要问题和产生问题的原因是:一“放炮”,占质量问题的60％左右,主要是蒸发器与箱体内胆间隔太近而相碰,蒸发器在工作时因热胀冷缩而与内胆发生摩擦,发出不规则的冰裂响声。其原因是对蒸发器与箱体内胆的设计考虑不周,工艺上欠完善。现已在模具、结构上作了改进,已基本解决,噪声已降到部标规定范围之内。二“不制冷”,或“局部制冷”,或“开始制冷,过一段时间后又不制冷”,约占20％左右。其原因是焊条质量不好,焊工技术低和灌冷媒机随意调动,因此出现“焊缝漏”、或
First, the problem and the reasons According to the survey, the main refrigerator problems and the reasons for the problem is: a “blasting”, accounting for about 60% of quality problems, mainly the evaporator and the tank liner interval too close to touch, Evaporator at work due to thermal expansion and contraction with the liner friction, issued an irregular ice cracking sound. The reason is the design of the evaporator and tank interior ill-considered, the process is not perfect. Now in the mold, made improvements in the structure, has been basically solved, the noise has been reduced to within the scope of the standard. Second, “not cooling”, or “local cooling”, or “start cooling, cooling after a period of time,” about 20%. The reason is that the quality of welding rod is poor, the welding technology is low,