Effects of Holding Time before Dimension Measurement for Aluminum Castings

Huang Zijun; Dou Xiangliang; Zeng Huaqiu

doi:10.15980/j.tzzz.2019.06.027

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Effects of Holding Time before Dimension Measurement for Aluminum Castings
Vol. 39, Issue 6, Pages: 685-687(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.06.027

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[1]黄子君,窦祥亮,曾华秋.铝铸件尺寸测量前恒温时间研究[J].特种铸造及有色合金,2019,39(06):685-687.

Huang Zijun, Dou Xiangliang, Zeng Huaqiu. Effects of Holding Time before Dimension Measurement for Aluminum Castings. [J]. Special Casting & Nonferrous Alloys 39(6):685-687(2019)
[1]黄子君,窦祥亮,曾华秋.铝铸件尺寸测量前恒温时间研究[J].特种铸造及有色合金,2019,39(06):685-687. DOI： 10.15980/j.tzzz.2019.06.027.

Huang Zijun, Dou Xiangliang, Zeng Huaqiu. Effects of Holding Time before Dimension Measurement for Aluminum Castings. [J]. Special Casting & Nonferrous Alloys 39(6):685-687(2019) DOI： 10.15980/j.tzzz.2019.06.027.

摘要

由于金属的热胀冷缩特性

环境温度对金属零件尺寸的影响较大

所以其尺寸测量需进行恒温测量。以汽车铝铸件为例

研究不同质量以及最大投影面积的铝铸件从试验初始温度达到恒温温度（20±2℃）所需的时间

总结出适用于被试验的铝铸件尺寸测量前的恒温时间。

Abstract

As the characteristics of thermal expansion and cool contraction metal

environmental temperature has great influence on measurement error of metal parts.So metal parts need to be placed in the constant temperature room before measurement

then high accuracy measurement data can be obtained after achieving target temperature of parts.Takes the aluminum casting with different weight and maximum projected area of automobile as an example

the required time of reaching the constant time of 20±2 ℃ from initial temperature of test was analyzed.At last

the holding time before dimension measurement by parts was presented.

关键词

铝铸件尺寸测量恒温时间

Keywords

Aluminum CastingDimension MeasurementHolding Time

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