【摘要】 在建筑节约型社会的今天,门窗用PVC-U型材作为新型的节能环保建材产品,正在得到迅速普及和应用。伴随着门窗型材生产的发展,其标准也在不断完善修订,以带动行业的整体进步。通过对历次门窗标准的仔细研读,结合从事多年技术工作的经验,重点剖析焊角强度试验方法发生的较大变化及意义,使读者加深理解,更好地应用。更多还原

【Abstract】 In construction managing model of the society today,doors and windows with PVC-U profile as a new type of energy saving and environmental protection building materials,is the rapid popularization and application.With the doors and windows profile production development,the standard also is in ceaseless and perfect revision,in order to promote the industry’s progress.Based on previous doors and windows standard reading carefully,combined with many years engaged in technical work experience,focusing on analysis of great changes and significance in welding corner strength test,so that readers can better understand and better appliy it.更多还原