Alignment tool for Charpy impact test and working method thereof

A Charpy impact test and working method technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems affecting the actual value of the impact test result, the deviation of the impact test test value, and the long time of placing the sample, achieving structural Simple, anti-shock value distortion, easy to produce and manufacture effects

Active Publication Date: 2018-12-07
GUANGZHOU WENCHONG SHIPYARD CO LTD
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Problems solved by technology

[0003] During the Charpy impact test, the clamp is used to clamp the sample and place it on the support of the testing machine for positioning, but usually when the clamp releases the sample, the end of the clamp will make a circle around the axis of the clamp The circular arc track movement, thus, the limit boss matching the end of the clamp and the sample notch will collide with the inner wall of the sample notch to make the sample move, so that the position of the notch center and the center of the pendulum will be

Method used

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  • Alignment tool for Charpy impact test and working method thereof
  • Alignment tool for Charpy impact test and working method thereof
  • Alignment tool for Charpy impact test and working method thereof

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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be co...

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Abstract

The invention provides an alignment tool for a Charpy impact test and a working method thereof. The alignment tool comprises a connecting arm and a positioning block which is arranged between tester supports on two sides of a sample, wherein the positioning block is fixedly connected with the end part of the connecting arm; and a cam part corresponding to the notch in the sample is arranged on theside face of the positioning block to realize supported positioning of the sample. Therefore, the alignment tool can be used for quickly and accurately positioning the sample in the Charpy impact test to avoid sample displacement caused by collision, and can prevent detected impact data distortion of the sample.

Description

technical field [0001] The invention relates to a centering tool for a Charpy impact test and a working method thereof. Background technique [0002] The Charpy impact test is a test used to determine the notch resistance (toughness) of metal materials. Prepare a metal sample with a certain shape and size, so that it has a U-shaped notch or a V-shaped notch, and it is in a simply supported beam state on the Charpy impact testing machine. For notch punching, calculate the absorbed energy of the sample by using the height difference when the pendulum rises again when it breaks, namely Aku and Akv. The impact test can be done at different temperatures, and the absorbed work value (joule) is large, indicating that the material has good toughness and is not sensitive to gaps in the structure or other stress concentrations. For materials with important structures, V-shaped notch specimens that can better reflect the notch effect have been used for impact tests in recent years. ...

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Application Information

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IPC IPC(8): G01N3/02G01N3/303
CPCG01N3/02G01N3/303G01N2203/001G01N2203/0039
Inventor 杨伟锋许斌罗勉
Owner GUANGZHOU WENCHONG SHIPYARD CO LTD
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