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Method for measuring surface roughness of columnar wire rod

A surface roughness and measurement method technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of insufficient coverage of the overall object and the inability to meet the rapid detection requirements of enterprises, and achieve the effect of avoiding the interference of liquid flow

Pending Publication Date: 2021-07-09
JIANGSU XINGDA STEEL TYPE CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods scan the surface contour of the object by means of contact (such as needle drawing) or non-contact (such as optical method), so as to obtain the parameter value of the roughness evaluation such as the arithmetic mean deviation of the contour or the maximum height of the contour, although the measurement accuracy Higher, but on the one hand, it can only measure the axial or circumferential direction of the cylindrical surface in one-dimensional direction, which is not enough to cover the whole object; on the other hand, it cannot meet the rapid detection requirements of enterprises

Method used

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  • Method for measuring surface roughness of columnar wire rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a method for measuring the surface roughness of a columnar wire, comprising:

[0037] Obtain the standard evaluation value reflecting the surface roughness of the columnar wire standard part;

[0038] Obtain the measurement evaluation value reflecting the surface roughness of the columnar wire measuring piece;

[0039] According to the size of the measured evaluation value and the standard evaluation value, judge the size of the surface roughness of the measured part relative to the standard part.

[0040] The specific steps are:

[0041] Step 1: Obtain the standard evaluation value reflecting the surface roughness of the columnar wire standard part.

[0042] Step 1-1: Hang a heavy object on one end of the cylindrical wire standard, and immerse this end vertically in a long straight U-shaped tube filled with standard liquid.

[0043] Step 1-2: Let the standard piece of columnar wire with a heavy object fall freely, record the time it takes...

Embodiment 2

[0059] This example is a specific application scenario using the method for measuring the surface roughness of a columnar wire provided in Example 1 of the present invention. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the present invention. scope of protection.

[0060] Cut two 15cm long straightened Φ1.80mm steel wire, one steel wire A is fully polished by 120 mesh water abrasive paper, and the other steel wire B is fully polished by 800 mesh water abrasive paper. Hang a copper ball with a radius of 3mm at a place 5cm below one end of the steel wire A with a Φ0.10mm thin steel wire, and dip this end vertically into a U-shaped tube with an inner diameter of 12mm filled with glycerin, the liquid level is 1.5m, and the environment The temperature is 19°C, let it fall freely and start timing at the same time, record the time it takes for the metal ball to fall to the bottom, which is 4.27s. ...

Embodiment 3

[0062] This example is a specific application scenario using the method for measuring the surface roughness of a columnar wire provided in Example 1 of the present invention. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the present invention. scope of protection.

[0063] Cut two 15cm long straightened Φ 2.00mm copper wire, one copper wire C is fully polished by 120 mesh water abrasive paper, and the other copper wire D is fully polished by 1200 mesh water abrasive paper. Hang a copper ball with a radius of 3mm at a place 5cm below one end of the copper wire C with a Φ0.10mm thin steel wire, dip this end vertically into a U-shaped tube with an inner diameter of 12mm filled with ethylene glycol, and the liquid level is 2.5m. The ambient temperature is 19°C, let it fall freely and start timing at the same time, record the time it takes for the metal ball to fall to the bottom, which is 1.08s. ...

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Abstract

The invention discloses a method for measuring the surface roughness of a columnar wire rod. The method comprises the following steps: acquiring a standard evaluation value reflecting the surface roughness of a columnar wire rod standard component; acquiring a measurement evaluation value reflecting the surface roughness of the columnar wire rod measurement piece; and according to the measurement evaluation value and the standard evaluation value, judging the size of the surface roughness of the measurement piece relative to the standard piece. According to the invention, the relative size of the overall surface roughness of the two columnar wires can be rapidly and conveniently measured.

Description

technical field [0001] The invention relates to a method for measuring the surface roughness of a columnar wire, belonging to the technical field of roughness measurement. Background technique [0002] With the progress and development of modern science and technology, people have higher and higher requirements for the precision of the workpiece, and at the same time, higher requirements are also put forward for the measurement of the surface roughness of the workpiece. Theoretically, as long as the changes in physical and chemical properties caused by the rough surface of the object can be used to directly or indirectly measure the surface roughness of the object. But in fact, due to various reasons, the current methods of measuring roughness have certain limitations. At present, the commonly used surface roughness methods include comparative measurement method, mechanical rough needle method, electron microscope method, optical method and other comprehensive measurement m...

Claims

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Application Information

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IPC IPC(8): G01B21/30
CPCG01B21/30
Inventor 姚利丽冯国兵魏于博华欣刘湘慧陈长新李呐
Owner JIANGSU XINGDA STEEL TYPE CORD
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