CN101271752A - Welding process of piezoresistor - Google Patents
Welding process of piezoresistor Download PDFInfo
- Publication number
- CN101271752A CN101271752A CNA2008100670826A CN200810067082A CN101271752A CN 101271752 A CN101271752 A CN 101271752A CN A2008100670826 A CNA2008100670826 A CN A2008100670826A CN 200810067082 A CN200810067082 A CN 200810067082A CN 101271752 A CN101271752 A CN 101271752A
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- pin
- resistance
- varistor
- piezo
- welding
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Abstract
The invention provides a welding process of a varistor, comprising the steps that: the pin of the varistor is arranged on a fixed belt by an adhesive tape; two free ends of the pin which are bent correspondingly to each other are covered by solder paste; the varistor body is pre-heated to the necessary temperature; the varistor body is arranged at prearranged position between the two free ends of the pin; the solder paste covered on the two free is heated and fused; the varistor body is welded into a whole with the pin. The welding process of the varistor of the invention carries out pre-heating to the varistor body; the material of the varistor body has the effect of heat storage, and the solder paste covered on the two free ends of the pin can be fused; the varistor body and the pin can be welded into a whole, so as to prevent the offset and desquamation of the varistor body on the pin and the generation of sharp bulges, and to improve the welding quality between the varistor and the pin; meanwhile, complex section-typed operation processes such as traditional re-heating welding of varistor, etc. are saved, only subsequent welding supplementation process is required, and the processing flow can be effectively simplified.
Description
Technical field
The present invention relates to welding procedure, particularly the welding procedure of piezo-resistance.
Background technology
Piezo-resistance generally is applied to be welded by resistance body and pin in the electronic product.The welding procedure of existing piezo-resistance is generally taked following step: step 1: the piezo-resistance pin is installed on the fixed band by adhesive tape; Step 2: on two free ends that bend relatively of this pin, apply tin cream; Step 3: the resistance body is placed between these two free ends that are coated with tin cream by preposition; Step 4: resistance body and pin immersion tin slurry are welded together by the firing equipment heating.
Because the operating frequency of piezo-resistance is higher, its welding quality has also been proposed very high requirement, if welding is bad, can make the pin skew or the perk of piezo-resistance.Yet in the welding procedure of above-mentioned piezo-resistance, all adopt the segmented operation, the resistance body is in installation and moving process, only depending on not, two free-ended chucking powers of the pin of welding can not guarantee that the fixed-site of resistance body on pin is motionless, the possibility that has this solid offsetting of resistance, and lift up and down and can make tin starch irregular welding or generation pointed projections, thereby when the product that welding is obtained is applied to electronic equipment, the resistance body is offset easily or comes off, or this pointed projections makes piezo-resistance produce discharge in actual applications, and then the use of electronic equipment brought harmful effect, thereby be necessary the welding procedure of piezo-resistance is improved.
Summary of the invention
The object of the present invention is to provide a kind of welding procedure of piezo-resistance,, can improve the welding quality of resistance body and pin, prevent the skew of resistance body or come off, overcome the pointed projections discharge by the piezo-resistance body is preheated; And, can effectively simplify welding procedure.
For achieving the above object, the invention provides a kind of welding procedure of piezo-resistance, comprise the steps:
Step 1: the piezo-resistance pin is installed on the fixed band by adhesive tape;
Step 2: on two free ends that bend relatively of this pin, apply tin cream;
Step 3: the piezo-resistance body is preheated to predetermined temperature;
Step 4: this resistance body is placed between two free ends of this pin with preposition, the tin cream melted by heating that applies on two free ends, resistance body and pin are welded as a whole.
Further comprise step 5: resistance body and pin are carried out repair welding.
Beneficial effect of the present invention: after the resistance body preheated, the material of resistance body has the effect of heat accumulation, can make the tin cream fusion that applies on two free ends of pin, again the resistance body is placed between two free ends, can prevent the resistance body on pin skew or come off, thereby, can improve the welding quality of resistance body and pin, in addition, the tin cream of free fusion is under the guide effect of sheet and mellow and full electric capacity body and pin, extend in a certain direction, evenly fit tightly on the electric capacity body, overcome the pointed projections that immersed solder produces, make pressure-sensitive capacitance can not produce the bulk storage electricity in actual applications, simultaneously, also saved in the traditional pressure sensitive resistance welding technology, the resistance body is installed on and adds complicated segmented operating process such as thermal weld again behind the pin, only need carry out follow-up repair welding, therefore can effectively simplify technological process.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the schematic diagram of piezo-resistance; And
Fig. 2 is the flow chart of the welding procedure of piezo-resistance of the present invention.
Embodiment
As shown in Figure 1, the semi-finished product 1 of piezo-resistance comprise resistance body 4 and the resistance pin 2 that is welded as a whole with it, and two free ends 22 of resistance pin 2 bend relatively, and resistance body 4 places between two free ends 22 of this pin.
As shown in Figure 2, in order to make above-mentioned piezo-resistance 1, the welding procedure of piezo-resistance of the present invention comprises the steps:
Step 1: the piezo-resistance pin is installed on the fixed band by adhesive tape; This step is identical with the step of existing welding procedure, and as shown in Figure 1, resistance pin 2 its middle part 21 after bending is fixed on the fixed band 5 by adhesive tape 3, and it has two free ends, 22, two free ends 22 and bends relatively, slightly is the U type, so that clamping resistance body 4; On the fixed band 5 several resistance pins 2 can be installed simultaneously, make things convenient for the welding procedure of serialization, fixed band 5 can be the hard paper tape.
Step 2: on two free ends that bend relatively of this pin, apply tin cream; This step also step with existing welding procedure is identical.
Step 3: the piezo-resistance body is preheated to necessary temp; Pre-heating temperature is 150 ℃-250 ℃; Improvements of the present invention mainly are this steps, solve thinking and are that the piezo-resistance body not only can absorb heat, and also has the function of heat accumulation.
Step 4: this resistance body is placed between two free ends of this pin with preposition, the tin cream melted by heating that applies on two free ends, resistance body and pin are welded as a whole.Because the piezo-resistance body has the function of heat accumulation, when the resistance body being placed between two free ends of pin, the heat that the resistance body stores makes the tin cream fusion that applies on the free end and extends along certain guiding, the resistance body is welded between two free ends of pin.In this step, resistance body fixedly fixing between two free ends by the tin cream fusion, thereby in existing technology, the resistance body is fixed more reliable by the power of holding that adds between two free ends, can be in follow-up technology, the skew of resistance body occurs or come off.
Step 5: resistance body and pin are carried out repair welding.The resistance body need add thermal weld and follow-up repair welding after placing between two free ends of pin in the existing technology, and general the employing immersed the welding of tin slurry, lifts up and down can make tin starch irregular welding or produce pointed projections to make finished product produce discharge.And welding procedure of the present invention since in the step 4 heat of resistance body made the tin cream fusion, only need carry out repair welding can obtain reliable piezo-resistance product, repair welding can be passed through existing techniques in realizing, has also avoided the generation of pointed projections simultaneously.
Beneficial effect of the present invention: after the resistance body preheated, the material of resistance body had heat accumulation Effect, can make the tin cream melting that applies on two free ends of pin, again the resistance body is placed two free ends Between, can prevent the resistance body on pin skew or come off, thereby, can improve resistance body and pin Welding quality, in addition, the tin cream of free melting is done in the guiding of sheet and mellow and full electric capacity body and pin With lower, extend in a certain direction, evenly fit tightly on the electric capacity body, overcome pointed prominent that immersed solder produces Rise, so that pressure-sensitive capacitance can not produce the bulk storage electricity in actual applications, simultaneously, also saved the traditional pressure sensitive electricity Welding resistance connects in the technology, and the segmented that the resistance body is installed on the complexity such as again heating welding behind the pin operated Journey only need be carried out follow-up repair welding, therefore effective simplification of flowsheet.
The above, for the person of ordinary skill of the art, can according to technical scheme of the present invention and Technical conceive is made other various corresponding changes and distortion, and all these changes and distortion all should belong to this Invent the protection domain of accompanying claim.
Claims (5)
1, a kind of welding procedure of piezo-resistance is characterized in that, comprises the steps:
Step 1: the piezo-resistance pin is installed on the fixed band by adhesive tape;
Step 2: on two free ends that bend relatively of this pin, apply tin cream;
Step 3: the piezo-resistance body is preheated to predetermined temperature;
Step 4: this resistance body is placed between two free ends of this pin with preposition, the tin cream melted by heating that applies on two free ends, resistance body and pin are welded as a whole.
2, the welding procedure of piezo-resistance as claimed in claim 1 is characterized in that, further comprises step 5: resistance body and pin are carried out repair welding.
3, the welding procedure of piezo-resistance as claimed in claim 1 is characterized in that, several resistance pins are installed on the fixed band in the step 1.
4, the welding procedure of piezo-resistance as claimed in claim 1 is characterized in that, the fixed band in the step 1 is the hard paper tape.
5, the welding procedure of piezo-resistance as claimed in claim 1 is characterized in that, the predetermined temperature that preheats in the step 3 is 150 ℃-250 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100670826A CN101271752B (en) | 2008-05-06 | 2008-05-06 | Welding process of piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100670826A CN101271752B (en) | 2008-05-06 | 2008-05-06 | Welding process of piezoresistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101271752A true CN101271752A (en) | 2008-09-24 |
| CN101271752B CN101271752B (en) | 2011-06-15 |
Family
ID=40005639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100670826A Expired - Fee Related CN101271752B (en) | 2008-05-06 | 2008-05-06 | Welding process of piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101271752B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137277A (en) * | 2011-12-01 | 2013-06-05 | 上海市电力公司 | Plug-in-class positive temperature coefficient (PTC) resistor production technology |
| CN112802645A (en) * | 2020-11-02 | 2021-05-14 | 南京先正电子股份有限公司 | Electrode plate of lightning protection valve plate and welding method |
| CN114083905A (en) * | 2021-12-06 | 2022-02-25 | 湖南凯通电子有限公司 | Thermal circuit for thermal printing hair |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312566A (en) * | 2000-03-05 | 2001-09-12 | 邵立群 | Sectional ceramic capacitor spot-welding technology |
| CN2469526Y (en) * | 2001-01-19 | 2002-01-02 | 蔡雅凤 | Thermal resistor with positive temp. coefficient and high reliable current foldback function |
-
2008
- 2008-05-06 CN CN2008100670826A patent/CN101271752B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137277A (en) * | 2011-12-01 | 2013-06-05 | 上海市电力公司 | Plug-in-class positive temperature coefficient (PTC) resistor production technology |
| CN112802645A (en) * | 2020-11-02 | 2021-05-14 | 南京先正电子股份有限公司 | Electrode plate of lightning protection valve plate and welding method |
| CN114083905A (en) * | 2021-12-06 | 2022-02-25 | 湖南凯通电子有限公司 | Thermal circuit for thermal printing hair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101271752B (en) | 2011-06-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20140506 |