一方法介绍 1 试样的加工将拉伸试样的夹头部分加长,使夹头长度h等于夹块的长与夹块厚的三分之二之和,其余尺寸仍按有关技术条件和试验方法的规定。见图1。 2 试验方法试验前将试样的两端折成小直角边。具体方法是将试样端部夹入虎钳内,夹入部分长等于夹块厚的三分之二,然后用手锤使之与试样形成直角。折后的试 A method to introduce a sample processing Tensile test sample chuck part of the lengthening, the chuck length h is equal to the length of the clamp block thickness and two-thirds of the sum, the remaining dimensions are still in accordance with the relevant technical conditions and tests Methodological requirements. see picture 1. 2 test methods before the test will be folded into a small square at both ends of the specimen. The specific method is to clamp the end of the vise into the vise, the length of the nip is equal to two-thirds of the thickness of the nip, and then use a hand hammer to form a right angle with the sample. After the test