CN109936036B - Method for improving positive force of terminal - Google Patents
Method for improving positive force of terminal Download PDFInfo
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- CN109936036B CN109936036B CN201711346283.5A CN201711346283A CN109936036B CN 109936036 B CN109936036 B CN 109936036B CN 201711346283 A CN201711346283 A CN 201711346283A CN 109936036 B CN109936036 B CN 109936036B
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Abstract
The invention relates to a method for improving the positive force of a terminal, which comprises the following steps: the first step is as follows: stamping the raw material into a terminal by using a stamping process; the second step is that: baking the terminals punched in the first step at a plurality of different temperatures and within a plurality of different time ranges; the third step: cooling the terminal baked in the second step to room temperature; the fourth step: and measuring the positive force of the cooled terminal in the third step, and introducing test parameters meeting the specification of the positive force into the product manufacturing process. The invention researches the influence of different baking conditions on the magnitude of the positive force of the connector terminal with different stamping modes, and can solve the technical problem that the positive force and the folding resistance of the terminal are ensured.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of terminal process improvement, and in particular, to a process improvement technique for a connector terminal.
[ background of the invention ]
The positive force is mainly from the displacement of the terminal beam of the socket caused by the matching with the plug when the two connectors are plugged, and the elastic restoring force generated by the displacement is the positive force of the terminal. As is well known, the magnitude of the positive force of the connector terminal affects the service life of the product, and the terminal is easy to break when the positive force is too large; conversely, when the normal force is small, the terminal is relatively easy to fall down due to an elastic restoring force that is too small. Therefore, the normal force meeting the specification is required to be adopted on the premise of sufficiently ensuring the service life of the terminal.
The nickel-copper alloy material has high hardness and strength, and can be generally used as a good terminal material, and the cost of the raw material is higher than that of a single metal material. The improvement of the positive force of the terminal can avoid the influence on the final service life of the connector terminal due to different stamping modes, thereby avoiding great economic loss to production units.
Therefore, a method that can improve the forward direction of the terminal is sought.
[ summary of the invention ]
The invention aims to provide a method capable of improving the positive direction of a terminal.
The purpose of the invention is realized by the following technical scheme: a method of improving a positive force of a terminal, the method comprising: the first step is as follows: stamping the raw material into a terminal by using a stamping process; the second step is that: baking the terminals punched in the first step at a plurality of different temperatures and within a plurality of different time ranges; the third step: cooling the terminal baked in the second step to room temperature; the fourth step: and measuring the positive force of the cooled terminal in the third step, and introducing test parameters meeting the specification of the positive force into the product manufacturing process.
Furthermore, the stamping process comprises a first stamping mode and a second stamping mode, the grain direction of the terminal manufactured by the first stamping mode in the length direction is the same as the grain direction of the raw material, and the grain direction of the terminal manufactured by the second stamping mode in the length direction is vertical to the grain direction of the raw material.
Further, the raw material is nickel-copper alloy.
Further, the baking temperatures were 100 ℃, 200 ℃ and 300 ℃ and the baking times were 30 minutes, 1 hour and 2 hours, respectively, for a total of 9 tests.
Compared with the prior art, the invention has the following beneficial effects: the influence of different baking conditions on the magnitude of the positive force of the connector terminals in different stamping modes is researched, and the positive force of the terminal adopting the first stamping mode is smaller than that of the terminal adopting the second stamping mode before the terminal adopting the first stamping mode is unbaked; after the two terminals are subjected to baking tests, the forward force of the terminal adopting the first stamping mode is gradually reduced after a certain temperature and time point, the forward force of the terminal adopting the second stamping mode is increased firstly within a certain temperature and time range, and then the forward force tends to be stable after a certain temperature and time point. Therefore, the positive force of the connector terminal can be kept at the optimal level within the specification according to the requirement, and the technical problem that the positive force and the folding resistance of the terminal are guaranteed is solved.
[ description of the drawings ]
FIG. 1 is a graph showing the forward force of a plurality of terminals manufactured by two stamping methods under different conditions.
[ detailed description ] embodiments
In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description taken in conjunction with the accompanying drawings.
The invention relates to a method for improving a positive force of a terminal, which comprises the following steps: the first step is as follows: stamping the raw material into the terminal by using a stamping process, wherein the stamping process comprises a first stamping mode and a second stamping mode, the grain direction of the terminal manufactured by the first stamping mode in the length direction is the same as the grain direction of the raw material, and the grain direction of the terminal manufactured by the second stamping mode in the length direction is vertical to the grain direction of the raw material. In this embodiment, the raw material is a nickel-copper-based alloy. And defining the terminal manufactured by the first stamping mode as a first terminal and the terminal manufactured by the second stamping mode as a second terminal. As shown in fig. 1, the positive force of the first terminal is normally less than the positive force of the second terminal.
The second step is that: the first terminal and the second terminal obtained by stamping in the first step were baked at several different temperatures and for several different time ranges, in this example, the baking temperatures were 100 ℃, 200 ℃ and 300 ℃, and the baking times were 30min, 1h and 2h, respectively, for a total of 9 sets of tests.
The third step: and cooling the terminal baked in the second step to room temperature.
The fourth step: and measuring the positive force of each of the first and second terminals cooled in the third step, drawing test data into a curve chart shown in fig. 1, and introducing test parameters meeting the positive force specification into the product manufacturing process.
As can be seen from fig. 1, the positive force of the first terminal gradually decreases with the increase of the baking temperature and the baking time; in the embodiment, the forward force of the second terminal tends to increase first and then decrease with the increase of the baking time under the baking condition of 100 ℃, the forward force gradually decreases with the increase of the baking time under the baking condition of 200 ℃, and the forward force tends to stabilize with the increase of the baking time under the baking condition of 300 ℃. And calculating the magnitude of the compliant stress of the terminal by combining the actual application of the terminal and the shape of the terminal, thereby defining the optimal positive force allowance specification of the terminal and introducing test parameters meeting the positive force specification into the product manufacturing process.
Therefore, the method for improving the positive force of the terminal solves the problem that the positive force and the folding resistance of the connector terminal need to be ensured by utilizing the characteristics that the positive force of the first terminal is reduced after the first terminal is baked under a certain condition, the positive force of the second terminal can be increased after the second terminal is baked under a certain condition, and the folding resistance can be enhanced, so that the positive force of the connector terminal can be kept at the optimal level within the specification according to different requirements.
The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.
Claims (3)
1. A method of improving the positive force of a terminal, comprising: the method comprises the following steps:
the first step is as follows: stamping a raw material into a terminal by using a stamping process, wherein the stamping process comprises a first stamping mode and a second stamping mode, the grain direction of the terminal manufactured by the first stamping mode in the length direction is the same as the grain direction of the raw material, and the grain direction of the terminal manufactured by the second stamping mode in the length direction is vertical to the grain direction of the raw material;
the second step is that: baking the two terminals manufactured by the first and second stamping modes in the first step at a plurality of different temperatures and within a plurality of different time ranges;
the third step: cooling the terminal baked in the second step to room temperature;
the fourth step: and measuring the positive force of the cooled terminal in the third step, and introducing test parameters meeting the specification of the positive force into the product manufacturing process.
2. The method of improving a positive force of a terminal of claim 1, wherein: the raw material is nickel-copper alloy.
3. The method of improving a positive force of a terminal of any of claims 1-2, wherein: the baking temperatures were 100 deg.C, 200 deg.C and 300 deg.C, respectively, and the baking times were 30min, 1h and 2h, respectively, for a total of 9 sets of experiments.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711346283.5A CN109936036B (en) | 2017-12-15 | 2017-12-15 | Method for improving positive force of terminal |
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| CN201711346283.5A CN109936036B (en) | 2017-12-15 | 2017-12-15 | Method for improving positive force of terminal |
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| CN109936036A CN109936036A (en) | 2019-06-25 |
| CN109936036B true CN109936036B (en) | 2022-02-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005290475A (en) * | 2004-03-31 | 2005-10-20 | Dowa Mining Co Ltd | Brass, its manufacturing method, and part using the same |
| CN1925065A (en) * | 2005-09-02 | 2007-03-07 | 日立电线株式会社 | Copper alloy material for electric element and method of making same |
| CN102327955A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for improving elasticity of spring piece |
| CN102773576A (en) * | 2012-06-30 | 2012-11-14 | 惠州市奥罗拉科技有限公司 | Terminal tinplated product tin whisker reduction process |
| CN105264105A (en) * | 2013-06-04 | 2016-01-20 | 日本碍子株式会社 | Copper alloy production method, and copper alloy |
| CN106030918A (en) * | 2014-03-05 | 2016-10-12 | 古河电气工业株式会社 | Terminal and method for manufacturing terminal |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0824972B2 (en) * | 1986-10-20 | 1996-03-13 | 新技術事業団 | Method for improving deep drawability of plate materials |
| JPH05326806A (en) * | 1992-05-15 | 1993-12-10 | Mitsubishi Electric Corp | Semiconductor device |
| JP2006142341A (en) * | 2004-11-22 | 2006-06-08 | Hiroshima Pref Gov | Method for press-forming different-thickness different-strength press forming material |
| CN100554486C (en) * | 2007-11-16 | 2009-10-28 | 苏州有色金属研究院有限公司 | Improve the method for baking and hardening performance of aluminum alloy automobile board with low content of Cu |
| CN201365058Y (en) * | 2009-02-16 | 2009-12-16 | 厦门市捷昕精密科技有限公司 | Contact pin blank of terminal |
| US8956735B2 (en) * | 2010-03-26 | 2015-02-17 | Kabushiki Kaisha Kobe Seiko Sho | Copper alloy and electrically conductive material for connecting parts, and mating-type connecting part and method for producing the same |
| CN103972693B (en) * | 2014-04-30 | 2016-08-17 | 河南天海电器有限公司 | A kind of automobile electrical equipment box high resiliency tuning fork terminal |
-
2017
- 2017-12-15 CN CN201711346283.5A patent/CN109936036B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005290475A (en) * | 2004-03-31 | 2005-10-20 | Dowa Mining Co Ltd | Brass, its manufacturing method, and part using the same |
| CN1925065A (en) * | 2005-09-02 | 2007-03-07 | 日立电线株式会社 | Copper alloy material for electric element and method of making same |
| CN102327955A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for improving elasticity of spring piece |
| CN102773576A (en) * | 2012-06-30 | 2012-11-14 | 惠州市奥罗拉科技有限公司 | Terminal tinplated product tin whisker reduction process |
| CN105264105A (en) * | 2013-06-04 | 2016-01-20 | 日本碍子株式会社 | Copper alloy production method, and copper alloy |
| CN106030918A (en) * | 2014-03-05 | 2016-10-12 | 古河电气工业株式会社 | Terminal and method for manufacturing terminal |
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| CN109936036A (en) | 2019-06-25 |
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