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Steel bar weight deviation measuring instrument and measuring method

A technology of weight deviation and measuring instrument, which is applied in the direction of measuring devices, instruments, weighing, etc., can solve the problems affecting and affecting the accuracy of weight deviation, and achieve the effect of high detection accuracy

Pending Publication Date: 2021-02-05
中冶检测认证有限公司 +2
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Problems solved by technology

[0009] However, because many steel bars are in the shape of coils when they leave the factory, they need to be straightened if they are measured by a measuring stick, and the straightening process will inevitably affect their length, thus affecting the accuracy of the final weight deviation

Method used

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  • Steel bar weight deviation measuring instrument and measuring method
  • Steel bar weight deviation measuring instrument and measuring method
  • Steel bar weight deviation measuring instrument and measuring method

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Embodiment Construction

[0029] The specific implementation of the steel bar weight deviation measuring instrument of the present invention will be described in detail below in conjunction with the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only illustrative illustrations of the present invention, and are not intended to limit it in any way.

[0030] see Figure 1-3 , The steel bar weight deviation measuring instrument of the present invention mainly includes a frame 1, a sample platform 2, a weighing device 3 and a laser range finder.

[0031] The sample stage 1 includes a grid chassis 21 and a plurality of parallel and spaced legs 22 arranged on the grid chassis 21. The height of the legs 22 is 5-10 cm, and the legs 22 are as narrow as possible, preferably 3-5 mm. This arrangement of the outriggers prevents target interference when the laser rangefinder is used to detect the steel bar sample placed on the outriggers 22 . The weighing ...

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Abstract

The invention discloses a steel bar weight deviation measuring instrument and a measuring method. The measuring instrument comprises a rack, wherein the rack is provided with a sample table, a weighing device and a laser range finder, wherein the weighing device is arranged at the center of the lower part of the sample table; the laser range finder is arranged behind the sample table and comprisesa probe, a vertical movement mechanism and a horizontal movement mechanism, the probe is fixed to the vertical movement mechanism and the horizontal movement mechanism through a probe support, and the horizontal movement path of the probe through the horizontal movement mechanism is parallel to the length direction of the sample table. The steel bar weight deviation measuring instrument can automatically and directly detect the weight deviation of the bent steel bar, and is high in detection precision.

Description

technical field [0001] The invention relates to the field of building material testing, in particular to a steel bar weight deviation measuring instrument and a measuring method. Background technique [0002] In order to ensure the safety of the building, the steel used in the construction must be inspected by the testing agency for various performances before use, and can only be used after passing the test. The weight deviation detection of steel bars for construction is an important item in the performance detection. The national standard "Steel for Reinforced Concrete Part 2: Hot-rolled Ribbed Steel Bars" (GB1499.2-2018) limits the allowable weight deviation range of different specifications of steel bars: [0003] Nominal diameter (mm) Weight deviation (%) 6-12 ±6.0 14-20 ±5.0 22-50 ±4.0 [0004] When calculating the bar weight deviation, the following formula is used: [0005] [0006] Among them, the actual total weight of the sampl...

Claims

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Application Information

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IPC IPC(8): G01G19/52G01N5/00G01B11/02
CPCG01G19/52G01N5/00G01B11/02
Inventor 朱建国王纪元李晓滨陶军惠栋奚晓东张良进
Owner 中冶检测认证有限公司
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