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Measuring instrument for detecting pressure-bearing limit value of steel pipe and use method of measuring instrument

A technology for measuring instruments and steel pipes, applied to measuring devices, using one-time impact force to test the strength of materials, and using a stable bending force to test the strength of materials, etc., can solve problems such as limited effects

Active Publication Date: 2022-05-13
唐山市市场监管综合执法局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, steel pipe detection mostly adopts point detection. This method has limited effect and cannot ensure that every section of the steel pipe can meet the use standards. Therefore, a method that can detect the pressure of the steel pipe under different stress states and different bending states is needed. restricted device

Method used

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  • Measuring instrument for detecting pressure-bearing limit value of steel pipe and use method of measuring instrument
  • Measuring instrument for detecting pressure-bearing limit value of steel pipe and use method of measuring instrument
  • Measuring instrument for detecting pressure-bearing limit value of steel pipe and use method of measuring instrument

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Embodiment Construction

[0036] 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 making creative efforts belong to the protection scope of the present invention.

[0037] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0038]In the description of the present application, it should be understood that the terms "ce...

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Abstract

The invention discloses a measuring instrument for detecting the pressure-bearing limit value of a steel pipe and a using method thereof.The measuring instrument comprises a workbench and a displayer connected with the workbench, the workbench comprises a testing area and a component force area arranged on one side of the testing area, the component force area is provided with a fixing ring, component force hammers are arranged on the component force area, and the sizes of hammer heads of the component force hammers are different; the component force hammer is connected to the component force plate, a lifting plate is arranged in the testing area, a gravity hammer is arranged on one side of the lifting plate and connected with a gravity regulator, a fixing knob is arranged on the other side of the lifting plate, the testing area further comprises fixing points, the fixing points are arranged in the range of the testing area side by side, a dynamometer is arranged in each fixing point, and the dynamometers are connected with a display screen. The method comprises the following steps: primarily pressing a steel pipe through a component force hammer on a component force area, detecting the bending performance of the steel pipe, conveying the steel pipe pressed by the component force hammer to a test area, detecting the tensile strength of the steel pipe after the steel pipe is subjected to a certain bending moment force, performing gravity pressing on the steel pipe, and calculating the ultimate pressure value of the steel pipe.

Description

technical field [0001] The invention relates to the field of quality inspection of building materials and the field of load measurement, in particular to a measuring instrument for detecting the pressure limit value of steel pipes and a use method thereof. Background technique [0002] A steel pipe is a steel material with a hollow section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it can be divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it can be divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; Steel pipes for thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, they are divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot-rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/30G01N3/20G01N3/02
CPCG01N3/08G01N3/30G01N3/20G01N3/02
Inventor 赵丽宏
Owner 唐山市市场监管综合执法局
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