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一、绪言近几年,以家电行业为中心,对预涂钢板(即彩涂钢板)的需求量日渐增多起来。作为钢板预涂化需求的背景,有因生产工序的省略而成本下降的问题,也有后涂时对大气、排水公害限制的问题。而且,1978年日本通用电器公司用预涂化板温间加工成电冰箱(温间加工是材料在室温以上、再结晶温度以下经受变形的过程),获取NCCA(国家卷材涂敷协会)的设计奖也成为一个契机。另外,用户也要认识预涂钢板的特性,在加工设备、加工方法等方面设想各种办法,出现了希望灵活应用预涂钢板的趋势。以上诸因素使预涂钢板的需求量增多延至现在。本文从涂膜物理性质的角度,以本公司
I. INTRODUCTION In recent years, with the home appliance industry as the center, the demand for precoated steel sheets (ie, coated steel sheets) has been increasing. As a background of steel precoating demand, there is a problem of cost reduction due to the omission of production processes, and the problem of restriction of air pollution and drainage after post coating. Furthermore, Japan’s General Electric Company processed the temperature of a precoated panel into a refrigerator in 1978 (temperature processing is a process in which the material is above room temperature and undergoes deformation below the recrystallization temperature) to obtain NCCA (National Coil Coating Association) Design Award has also become an opportunity. In addition, users should also recognize the characteristics of pre-coated steel, in the processing equipment, processing methods and other aspects of envisaged a variety of ways, there has been the hope that the flexible application of pre-coated steel trend. The above factors make the demand for pre-coated steel increased until now. This article from the physical properties of the coating point of view to the Company