Cooling box for CTOD (crank tip opening displacement) test and operating process of cooling box

A cooling box and testing technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve problems such as falling off, finger intrusion, operator injury, etc.

Active Publication Date: 2016-10-12
CNPC OFFSHORE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for medium or large specimens, the probability of such a thing is still relatively high
[0003] Large specimens are relatively large in volume and quality, and some of them have a mass of up to or even over 25Kg. When such specimens are used for testing, such prominent problems are likely to occur: 1. When

Method used

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  • Cooling box for CTOD (crank tip opening displacement) test and operating process of cooling box
  • Cooling box for CTOD (crank tip opening displacement) test and operating process of cooling box

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Embodiment Construction

[0025] see figure 1 and 2 , shows the cooling box for CTOD test of the present invention and its operation process, which is used to test the open displacement test of the crack tip of the welded joint, so that the test piece can be safely and smoothly placed in place during the test, and the test piece can be lifted out Coolant, and remove.

[0026] The cooling box for the CTOD test includes a box body 1, a top head 2, a lifting frame 3 and a lifting mechanism. The box body 1 is rectangular, and its upper end is opened for putting in a test piece. The top head 2 is arranged at the bottom of the box body 1. The middle position, the lifting frame 3 is movably placed in the box body 1, the lifting mechanism is two sets and is respectively located on the two side walls of the box body 1, each lifting mechanism is connected to the two sides of the lifting frame 3 to Provide the lifting frame 3 to move up and down in the box body 1.

[0027] Wherein, the lifting mechanism such a...

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Abstract

The invention provides a cooling box for a CTOD (crank tip opening displacement) test and an operating process of the cooling box. The cooling box for the CTOD test comprises a box body, an ejecting head, a lifting frame and lifting mechanisms, wherein the box body is rectangular, and an opening is formed in the upper end of the box body and allows a sample to be placed in; the ejecting head is arranged in the middle of the bottom of the box body; the lifting frame is movably arranged in the box body, the two lifting mechanisms are located on two side walls of the box body respectively and connected to two sides of the lifting frame respectively to allow the lifting frame to move up and down in the box body. Therefore, the cooling box is safe, reliable and simple to operate, a cryogenic liquid can be effectively prevented from injuring an operator in a test link, the safety of the test is improved, and orderly and smooth implementation of the test can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of auxiliary equipment for testing, in particular to a cooling box for CTOD testing and its operation process. Background technique [0002] In the current CTOD low-temperature test, the placement and removal of the specimens are all manual operations, that is, the operator wears gloves to carry the specimens, especially to put the specimens into the cooling liquid of the cooling box, or remove them from the After the test is completed, the test piece is taken out. When using small specimens for testing, because the specimens are light, flexible, and easy to move, phenomena such as difficulty in handling, contact with coolant, falling off, and difficulty in positioning, etc., do not or rarely occur. However, for medium or large specimens, the probability of such a thing is relatively high. [0003] Large specimens are relatively large in volume and quality, and some of them have a mass of up to or even ove...

Claims

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Application Information

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IPC IPC(8): G01N3/18
CPCG01N3/18G01N2203/0228
Inventor 李春润张志鹏牛虎理胡艳华孙勃刘剑张光华关幼耕
Owner CNPC OFFSHORE ENG
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