Device and method for length fixing and notch positioning of welded joint impact specimens

A technology of impact specimens and welded joints, which is applied in the field of material testing specimen processing, can solve problems such as low efficiency, difficulty in checking the correctness of the notch position, cumbersome processing of impact specimens, etc., and achieve the effect of fast batch length fixing

Pending Publication Date: 2018-11-30
CHINA MERCHANTS HEAVY IND JIANGSU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For welded joints, it is necessary to first determine the position of the impact notch of each group of samples relative to the weld, and then determine the length of the sample according to the position of the notch. fixed length, which leads to cumbersome and inefficient processing of welded joint impact specimens, especially when the amount of welded joint impact test is large
It is also difficult to check the correctness of the notch position after the sample processing is completed

Method used

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  • Device and method for length fixing and notch positioning of welded joint impact specimens
  • Device and method for length fixing and notch positioning of welded joint impact specimens
  • Device and method for length fixing and notch positioning of welded joint impact specimens

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Experimental program
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Effect test

Embodiment approach

[0029] The implementation method of using the above-mentioned device to determine the length of the sample and locate the gap comprises the following steps:

[0030] Step 1: After corroding the two opposite surfaces of each sample to show the outline of the weld, mark the notch position points respectively;

[0031] Step 2: Arrange several sample blanks with marked position points into the cutting fixture 4, then put the cutting fixture 4 into the fixed-length fixture 1, and then use the ruler 8 to assist along the fixed length. The long center point 2 and the cutting center point 5 are arranged so that the position points marked on each sample blank, the fixed-length center point 2 and the cutting center point 5 are on the same straight line, and then respectively The cutting clamping knob 6 and the fixed-length clamping knob 3 are tightened, and then the straight line is drawn on each sample blank, and a straight line mark 11 is formed on the sample blank, and the operation ...

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Abstract

The invention provides a device for length fixing of welded joint impact specimens. The device comprises a length fixing fixture, a cutting fixture and a straight ruler; and the cutting fixture is arranged in the length fixing fixture, clamping plates of the length fixing fixture and clamping plates of the cutting fixture are both of an axisymmetric structure, the symmetry axis of the clamping plates of the length fixing fixture coincides with that of the clamping plates of the cutting fixture, the width of the cutting fixture is less than that of the length fixing fixture, a length fixing clamping rotary knob is arranged at one end of the length fixing fixture, and a cutting clamping rotary knob is arranged at one end of the cutting fixture. The device can accurately conduct notch positioning at different impact positions of the welded joint impact specimens in batches, quickly and simultaneously determine length machining lines of multiple specimens according to the positioned notchpositions to achieve quick and batched length fixing of the impact specimens and check the accuracy of the notch positions after notch machining is completed.

Description

technical field [0001] The invention relates to a device for fixing the length of a welded joint impact sample and notch positioning, and a method for notch positioning and sample length fixing, belonging to the field of material test sample processing. Background technique [0002] In the mechanical performance testing of metal welded joints, a large number of impact tests are often required, and the impact position of welded joints is obviously more complex and diverse than that of non-welded joint materials, resulting in significantly different processing procedures for impact samples. The impact specimen of non-welded joint material is processed to complete the length of the specimen first, and then finds the center to process the gap. The processing process is relatively simple, and it is easy to realize rapid batch processing. For welded joints, it is necessary to first determine the position of the impact notch of each group of samples relative to the weld, and then d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28B23D79/00B23Q3/00B23P15/00
CPCG01N1/286B23D79/00B23P15/00B23Q3/00G01N2001/2873
Inventor 冯胜昆周文张徐强姚汝林
Owner CHINA MERCHANTS HEAVY IND JIANGSU
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