Citic Dicastal Co., Ltd

Yingwei Zhu

Zhihua Zhu

Hanbao Sun

Jinqi Lv

Zhuxing Wang

Yingfeng Wang

Zhipeng Li

Hongfu Jin

Ling Jiang

Jingying Liu

A sample gauge length and length after fracture measuring device includes a worktable, a first sliding table support and a second sliding table support, a control and length display, a spiral micrometer head, a scriber, a sample, etc. The reading device using the spiral micrometer head to directly measure the gauge length and the length after fracture has a detection accuracy of &#xb1;0.01 mm, which is superior to the requirement of &#xb1;0.05 mm in GB/T228 Metallic Materials Tensile Testing at Ambient Temperature.

Sample gauge length and length after fracture measuring device

The invention provides an aluminum alloy hub positioning fixture. The aluminum alloy hub positioning fixture adopts an upper trapezoidal metal taper sleeve and a lower trapezoidal metal taper sleeve, the lower trapezoidal metal taper sleeve is in contact with the central hole of a hub, and the upper trapezoidal metal taper sleeve is in contact with the cap section of the hub; the lower trapezoidal metal taper sleeve is mounted on a hollow shaft, and a metal pipe is arranged in the middle of the hollow shaft. During working, the hub is positioned and mounted on the lower trapezoidal metal taper sleeve via the central hole, the upper trapezoidal metal taper sleeve is in vertical contact with the cap section of the hub under the action of a cylinder.

Aluminum alloy hub positioning fixture

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Qinhuangdao, China

Yingwei Zhu