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1 前言 技术检验是铝型材生产过程中的一项重要内容。在铝型材的工艺流程中,导致产品质量波动的因素很多,例如铸锭性能的差异,机器和模具的误差,工人操作中的不稳定性,工艺方法的变更甚至环境温度的变化都会影响铝型材质量的波动。为了确定质量波动的大小,判断波动是否超出了允许范围,必须在铝型材的生产过程中实施技术检验。近年来,市场上劣质铝型材产品泛滥,部分地区铝型材的抽查合格率仅在50％左右,铝型材产品质量低劣,极大地损害了
1 Preface Technical inspection is an important part of the aluminum production process. There are many factors that lead to product quality fluctuations in the aluminum extrusion process. For example, differences in ingot properties, machine and tooling errors, worker instability, process changes, and even ambient temperature changes can affect aluminum profiles Quality fluctuations. In order to determine the size of quality fluctuations, to determine whether the fluctuations beyond the allowable range, the aluminum profile must be implemented in the production of technical inspection. In recent years, the market of inferior aluminum products rampant, spot checks in some parts of the passing rate of only about 50%, aluminum products of poor quality, greatly damaged