CN103759865A - Method for detecting residual stress of cut steel wire - Google Patents
Method for detecting residual stress of cut steel wire Download PDFInfo
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- CN103759865A CN103759865A CN201410001831.0A CN201410001831A CN103759865A CN 103759865 A CN103759865 A CN 103759865A CN 201410001831 A CN201410001831 A CN 201410001831A CN 103759865 A CN103759865 A CN 103759865A
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- steel wire
- cutting steel
- corrosion
- cut steel
- unrelieved stress
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Abstract
The invention discloses a method for detecting residual stress of a cut steel wire. The method comprises the following steps of a, fetching a cut steel wire sample, bending one end of the cut steel wire sample and performing anti-corrosion treatment on the bent end; b, soaking the cut steel wire into acid solution to perform corrosion, wherein the corrosion degree of the cut steel wire is ensured to the preset value, and the corroded end of the cut steel wire bends; c, washing and drying the corroded cut steel wire, and measuring the deformation distance between the corroded end of the cut steel wire and the end of the cut steel wire before corrosion, wherein the deformation distance reflects residual stress intensity of the cut steel wire. The method solves the problem of measurement of residual stress of the drawn steel wire, is capable of effectively detecting whether residual stress of the steel wire exists and conditions and stress value of residual stress, and effectively solves the problem of poor quality of steel wire products caused by residual stress.
Description
Technical field
The invention belongs to cutting steel wire technical field of performance test, relate in particular to the detection method of cutting steel wire unrelieved stress.
Background technology
Due to the impact of unrelieved stress, cutting steel wire, when cutting silicon wafer, easily deforms, the phenomenon such as bending, clot, has a strong impact on the quality of silicon chip cutting, and greatly increases the risk of steel wire broken string.In process of production or after having produced, cannot detect the unrelieved stress of steel wire at present, only after use, could find, to product quality, bring very large risk.In order to detect in time the unrelieved stress of steel wire, and eliminated, to reduce because existing unrelieved stress to affect cutting steel wire quality, invented this method of testing.
Summary of the invention
Goal of the invention: for the problem and shortage of above-mentioned existing existence, the object of this invention is to provide a kind of cutting steel wire unrelieved stress detection method, by this method, can detect quickly the unrelieved stress of cutting steel wire in process of production and after having produced, avoid affecting the cut quality of silicon chip when silicon chip is cut.
Technical scheme: for achieving the above object, the present invention by the following technical solutions: a kind of cutting steel wire unrelieved stress detection method, comprises the following steps: a, get cutting steel wire sample, and by one end bending, this bending end carries out anti-corrosion treatment; B, then above-mentioned cutting steel wire is immersed in acid solution, corrode, and guarantee that cutting metal wire extent of corrosion is preset value, now the corrosion end of cutting steel wire bends; C, the above-mentioned cutting steel wire through excessive erosion is washed and is dried after, the deformation distance of the end of cutting steel wire before the end of measuring the corrosion of this cutting steel wire and corrosion, this deformation is apart from the unrelieved stress size of reaction cutting steel wire; When the corrosion end of cutting steel wire bends towards bending end, unrelieved stress is tension, and when the corrosion of cutting steel wire holds that bending end bends dorsad, unrelieved stress is compressive stress.
Further, the total length of described cutting steel wire sample is 22cm, and bending end length is 20mm, and is right angle bending; Described acid solution is 30% ± 5% hydrochloric acid solution, and during corrosion, temperature is 50 ± 1 ℃; Described cutting steel wire extent of corrosion is cutting steel wire diameter 10 ± 2 μ m that diminish.
As preferably, the bending end anti-corrosion treatment of described cutting steel wire is for applying paint.
Beneficial effect: compared with prior art, this method of the present invention has solved the problem of steel wire unrelieved stress test after drawing, can effectively detect whether steel wire unrelieved stress exists and the situation of unrelieved stress and the size of stress value; Efficiently solve the steel wire product quality problems that cause because of unrelieved stress.
Accompanying drawing explanation
Form schematic diagram when Fig. 1 is cutting steel wire unrelieved stress detection of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
A cutting steel wire unrelieved stress detection method, comprises the following steps:
1: getting a segment length is the cutting steel wire sample of 22cm, along 2cm place, its one end, cutting steel wire is carried out to right angle and is bent to form bending end;
2: the bending end of steel wire is applied and painted, and dry; Fixation with steel wire, on blank sheet of paper, is retouched to line and retained and retouch line graph;
3: then cutting steel wire is immersed to 30% ± 5% hydrochloric acid solution, and corrode at the temperature of 50 ± 1 ℃, extremely the diameter to cutting steel wire has reduced 10 ± 2 μ m, and then washing is clean, and dry;
4: then by the cutting steel wire after corrosion with retouch line graph and align, when the corrosion end of cutting steel wire bends towards bending end, unrelieved stress is tension, when the corrosion of cutting steel wire holds that bending end bends dorsad, unrelieved stress is compressive stress.And measure the end and the distance of retouching the end of the front cutting steel wire of corrosion on line graph of cutting steel wire corrosion, this distance can be reacted the stress of cutting steel wire remnants.
Claims (3)
1. a cutting steel wire unrelieved stress detection method, is characterized in that comprising the following steps:
A, get cutting steel wire sample, and by one end bending, this bending end carries out anti-corrosion treatment;
B, then above-mentioned cutting steel wire is immersed in acid solution, corrode, and guarantee that cutting metal wire extent of corrosion is preset value, now the corrosion end of cutting steel wire bends;
C, the above-mentioned cutting steel wire through excessive erosion is washed and is dried after, the deformation distance of the end of cutting steel wire before the end of measuring the corrosion of this cutting steel wire and corrosion, this deformation is apart from the unrelieved stress size of reaction cutting steel wire; When the corrosion end of cutting steel wire bends towards bending end, unrelieved stress is tension, and when the corrosion of cutting steel wire holds that bending end bends dorsad, unrelieved stress is compressive stress.
2. cutting steel wire unrelieved stress detection method according to claim 1, is characterized in that: the total length of described cutting steel wire sample is 22cm, and bending end length is 20mm, and is right angle bending; Described acid solution is 30% ± 5% hydrochloric acid solution, and during corrosion, temperature is 50 ± 1 ℃; Described cutting steel wire extent of corrosion is cutting steel wire diameter 10 ± 2 μ m that diminish.
3. cutting steel wire unrelieved stress detection method according to claim 1, is characterized in that: the bending end anti-corrosion treatment of described cutting steel wire is for applying paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001831.0A CN103759865A (en) | 2014-01-02 | 2014-01-02 | Method for detecting residual stress of cut steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001831.0A CN103759865A (en) | 2014-01-02 | 2014-01-02 | Method for detecting residual stress of cut steel wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103759865A true CN103759865A (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410001831.0A Pending CN103759865A (en) | 2014-01-02 | 2014-01-02 | Method for detecting residual stress of cut steel wire |
Country Status (1)
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| CN (1) | CN103759865A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483173A (en) * | 2014-12-23 | 2015-04-01 | 内蒙古包钢钢联股份有限公司 | Cutting method for detecting lateral bending residual stress of H-shaped steel |
| CN113776715A (en) * | 2021-09-10 | 2021-12-10 | 中铜华中铜业有限公司 | Method for detecting residual stress of lead frame material |
| CN114166381A (en) * | 2021-11-25 | 2022-03-11 | 厦门捷昕精密科技股份有限公司 | Method for detecting internal stress of semiconductor IC lead frame material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009191422A (en) * | 2008-02-18 | 2009-08-27 | Bridgestone Corp | Helical steel wire, steel cord for reinforcing rubber article, tire, and manufacturing method of helical steel wire |
| CN102590069A (en) * | 2011-01-12 | 2012-07-18 | 宝山钢铁股份有限公司 | Test sample used in stainless steel corrosion test and fabrication method thereof |
| CN102980923A (en) * | 2012-11-20 | 2013-03-20 | 上海实达精密不锈钢有限公司 | Internal stress detection method of cold-rolled precise metal thin belt |
-
2014
- 2014-01-02 CN CN201410001831.0A patent/CN103759865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009191422A (en) * | 2008-02-18 | 2009-08-27 | Bridgestone Corp | Helical steel wire, steel cord for reinforcing rubber article, tire, and manufacturing method of helical steel wire |
| CN102590069A (en) * | 2011-01-12 | 2012-07-18 | 宝山钢铁股份有限公司 | Test sample used in stainless steel corrosion test and fabrication method thereof |
| CN102980923A (en) * | 2012-11-20 | 2013-03-20 | 上海实达精密不锈钢有限公司 | Internal stress detection method of cold-rolled precise metal thin belt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483173A (en) * | 2014-12-23 | 2015-04-01 | 内蒙古包钢钢联股份有限公司 | Cutting method for detecting lateral bending residual stress of H-shaped steel |
| CN104483173B (en) * | 2014-12-23 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | One kind detection H profile steel lateral thrust residual stress cutting method |
| CN113776715A (en) * | 2021-09-10 | 2021-12-10 | 中铜华中铜业有限公司 | Method for detecting residual stress of lead frame material |
| CN114166381A (en) * | 2021-11-25 | 2022-03-11 | 厦门捷昕精密科技股份有限公司 | Method for detecting internal stress of semiconductor IC lead frame material |
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Application publication date: 20140430 |