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Multi-purpose ultralow-temperature tensile test device for ship material

A tensile test and ultra-low temperature technology, which is used in measuring devices, analyzing materials, and using stable tension/pressure to test the strength of materials, etc., to improve operational safety, improve ship construction quality, and ensure reliability.

Pending Publication Date: 2022-03-04
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the low-temperature mechanical performance testing projects currently carried out, the low-temperature and ultra-low temperature impact projects are very mature, while the low-temperature and ultra-low temperature stretching projects have just emerged and have not yet been popularized. The testing industry uses its own methods

Method used

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  • Multi-purpose ultralow-temperature tensile test device for ship material
  • Multi-purpose ultralow-temperature tensile test device for ship material
  • Multi-purpose ultralow-temperature tensile test device for ship material

Examples

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Effect test

Embodiment 1

[0034] This embodiment provides an ultra-low temperature tensile test device for ship materials,

[0035] It includes a main body frame, a force receiving mechanism, a storage bucket 22 , an upper connecting sleeve 16 and a lower connecting sleeve 19 .

[0036] Among them, the main frame includes the upper beam 1 of the testing machine, the lower beam 11 of the testing machine, the movable beam 2 and the column 3 of the testing machine, the upper beam 1 of the testing machine and the lower beam 11 of the testing machine are fixed structures, and the upper end of the column 3 of the testing machine passes through the upper beam of the testing machine 1. The lower end of the column 3 of the testing machine passes through the lower beam 11 of the testing machine. The moving beam 2 is located between the upper beam 1 of the testing machine and the lower beam 11 of the testing machine and can move up and down along the column 3 of the testing machine. The column 3 of the testing mac...

Embodiment 2

[0041] This embodiment provides a method for ultra-low temperature tensile testing of ship materials, comprising the following steps:

[0042] Step 1. Install the force-bearing mechanism on the force-bearing installation shaft 8 through the force-bearing connecting piece 4. There is a force-bearing turntable 10 between the force-bearing connecting piece 4 and the force-bearing installation shaft 8. Turn the force-bearing mechanism in or out as required. Out of the test space of the testing machine and installed firmly; the force-bearing mechanism can be transferred into the test space of the testing machine when the ultra-low temperature test is required, and transferred out of the test space of the testing machine when the ultra-low temperature test is not required, without affecting the testing machine for other tests;

[0043] Step 2, install the storage on the force bearing mechanism through the barrel connector 9;

[0044] Step 3. Connect one end of the upper connecting s...

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Abstract

The invention discloses a multipurpose ship material ultralow-temperature tensile test device which comprises a main body frame, a stress mechanism, a storage barrel, an upper connecting sleeve and a lower connecting sleeve, the upper connecting sleeve is arranged on the main body frame, and the lower connecting sleeve is mounted on the stress mechanism; a to-be-tested sample is mounted between the upper connecting sleeve and the lower connecting sleeve, is provided with a low-temperature extensometer, and is immersed into a storage barrel. According to the invention, the tensile test can be accurately and quickly carried out on the ultralow-temperature material, and the real mechanical properties such as ultralow-temperature yield strength, tensile strength, percentage elongation after fracture, percentage reduction of area and the like of the ultralow-temperature material are reflected, so that the strength and toughness of the ultralow-temperature material in an ultralow-temperature environment are verified and are used as a basis for checking and accepting the ultralow-temperature material; the material use reliability is ensured, and the ship building quality is improved.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a multi-purpose ship material ultra-low temperature tensile test device. Background technique [0002] In recent years, with the increase in the number of ships sailing in ice regions and liquefied natural gas ships, low-temperature and ultra-low temperature materials have gradually become popular. These materials need to meet the requirements of maintaining sufficient strength at ultra-low temperatures, not easily deformed, and have certain toughness requirements . Therefore, the corresponding low temperature detection requirements also follow. [0003] Among the low-temperature mechanical performance testing projects currently carried out, the low-temperature and ultra-low temperature impact projects are very mature, while the low-temperature and ultra-low temperature stretching projects have just emerged and have not yet been popularized. The testing industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18G01N3/02
CPCG01N3/18G01N3/02
Inventor 金向红周承袁伟吴永飞沈松培
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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