CN101118794B - Manufacture process of high precision alloy fled rheostat - Google Patents
Manufacture process of high precision alloy fled rheostat Download PDFInfo
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- CN101118794B CN101118794B CN2006101090439A CN200610109043A CN101118794B CN 101118794 B CN101118794 B CN 101118794B CN 2006101090439 A CN2006101090439 A CN 2006101090439A CN 200610109043 A CN200610109043 A CN 200610109043A CN 101118794 B CN101118794 B CN 101118794B
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Abstract
A high-precision alloy resistor manufacturing process is to carry the dieing of a lengthy alloy board according to a predetermined shape so as to form a plurality of alloy resistance sections of the alloy board. The alloy resistance sections are arranged at intervals in the lengthy direction and the intervals are connected by residual material strips of the alloy board. Of the alloy resistance sections of the alloy board, an insulating section and two alloy board exposed section are underlined so as to form an anti-electroplating printing layer on the insulating section and to plate an electric conducting layer on the surface of the alloy board exposed sections. Afterwards, the anti-electroplating printing layer is removed and the surface of the alloy board exposed sections of each alloy resistance section is plated with an electric conducting layer, and the insulating section is molded with plastics. At last, each alloy resistance section is died and separated, thus forming a plurality of alloy resistance monomers.
Description
Technical field
The present invention relates to a kind of manufacture method of high precision alloy fled rheostat, with an alloy sheets according to reservation shape carry out punch die, in conjunction with anti-electroplating printed layers, plating conductive layer, removing and anti-ly electroplate printed layers, repair, mould step such as fat injection molding, punch die separation, electro-coppering end utmost point material and finish the manufacture method of chip resister.
Background technology
Conventional surface mount cake core resistor generally is to make with the thick film screen printing manufacture method, its mainly on selected ceramic substrate through printing, laser reconditioning, the copper end utmost point of a sequence, electroplate manufacture method and on this ceramic substrate, form required resistor.And in the kenel of another kind of resistor, then be widely used alloy chip resister.
Yet, when making resistor, when more powerful resistor and super-low resistance value, be difficult to accomplish stability characteristic (quality) as alloy material with traditional thick film screen printing manufacture method technology, especially in the application of current with high accuracy detector, this also is present technological trend.
Though the alloy chip resister has its specific advantage, generally speaking, in the course of processing of alloy chip resister, in alloy sheets, directly connect to an alloy sheets punching press strip each other continuously.In the whole course of processing, can be at the both sides of alloy sheets ad-hoc location, carry out the processing that punching press is sheared, after finishing preliminary punch process, at the ad-hoc location of this strip, will seem more narrow, simultaneously, by this place also is the most concentrated position of axial stress, the therefore also the easiest distortion or fractureed of being curled.A nearlyer step ground is said, because the narrowest position of this strip is a part that belongs to each alloy chip resister mostly.Therefore, in case this strip is fractureed, just an alloy chip resister has been lost in representative.
In addition, in the process of making this high precision alloy fled rheostat, must give punching press at each alloy chip resister connecting place shears, make it to be separated into single alloy chip resister, in this process, it is improper that a punching press is sheared, promptly can cause the size of two above alloy chip resisters to depart from simultaneously (that is cause each alloy chip resister different in size), influence will be difficult to guarantee whether the resistance accuracy of each alloy chip resister all falls within specific requiring in the margin of tolerance in one's power.
Summary of the invention
Therefore, shortcoming in view of prior art, main purpose of the present invention promptly provides a kind of manufacture method of high precision alloy fled rheostat, no matter make the alloy chip resister in each side such as resistance accuracy, product yield, manufacture method simplicities, all can meet the demand of industry.
A kind of manufacture method with high precision alloy fled rheostat of the present invention in manufacture method of the present invention, can be carried out the step of resistance finishing fine setting according to required resistance accuracy to this alloy sheets in alloy sheets after plating is finished.
For achieving the above object, the invention provides: a kind of manufacture method of high precision alloy fled rheostat is characterized in that comprise the following steps: to select an alloy sheets material for use according to required resistance, this alloy sheets material wherein possesses a length bearing of trend; According to required resistance, this alloy sheets is carried out punch die according to reservation shape, so that this alloy sheets forms a plurality of resistance alloys sections spaced apart at this length bearing of trend, this resistance alloys section includes an insulated section and two alloy sheets expose section to the open air, this insulated section exposes to the open air between the section in two alloy sheets, and remains the alloy sheets clout band of each resistance alloys section of binding between each resistance alloys section; Insulated section in each resistance alloys section forms an anti-printed layers of electroplating; Expose the surface of section in each alloy sheets to the open air and plate a conductive layer, with electrode as resistance alloys; That removes this insulated section should anti-ly electroplate printed layers, so that this insulated section exposes; Insulation layer to resistance value do finishing, to reach high-precision requirement; Mould fat injection molding or insulating varnish application at this insulated section, mould fat injection molding cladding so that this insulated section coats one; This alloy sheets clout band is given punching press separate, to form a plurality of resistance alloys monomers.
The present invention carries out an alloy sheets after the punch die according to reservation shape for the technological means that problem adopted that solves known techniques, make this alloy sheets form a plurality of resistance alloys sections, each resistance alloys section is in this length bearing of trend (promptly horizontal and row arrangement) spaced apart, and have an insulated section and two alloys expose section to the open air, and link to each other with this alloy sheets clout band one serial connection.Then, insulated section surface in each resistance alloys section forms an anti-printed layers of electroplating, expose section to the open air in each alloy sheets again and plate a conductive layer, with electrode as resistance alloys, remove the anti-plating printed layers of insulated section again, so that insulated section exposes, repair resistance again, at last mould the fat injection molding at the resistance alloys section of this alloy sheets, coat one with insulated section and mould fat injection molding cladding at this resistance alloys section, and each resistance alloys section is given punching press shear to separate, and form a plurality of resistance alloys monomers, and can plate a bed thickness conducting end utmost point material at the two ends of this resistance alloys monomer.
Compared with prior art, alloy chip resister of the present invention can be when making alloy fled rheostat, horizontal and the row arrangement of resistance alloys section after each punching press, its two ends link to each other with alloy sheets clout band one serial connection, so not only can effectively solve in the prior art, because departing from (that is each alloy chip resister is different in size), size causes the too big problem of resistance amount of variability, simultaneously because its processing carrying shearing face is bigger, and the more cause of stress point, to help to alleviate Texturized and minimizing punching press shearing burr, promote the quality stability of processing operation, and then promote the production yield of alloy chip resister.In addition, the present invention can process by one group of a plurality of chip resister when punch die together, can effectively enhance productivity, and reduces fraction defective, reduces cost.
Description of drawings
Figure 1 shows that the stereogram of the prepared alloy sheets of the present invention.
Figure 2 shows that the cutaway view of 2-2 section among Fig. 1.
Figure 3 shows that the present invention carries out schematic diagram behind the punch die according to required resistance with alloy sheets.
Figure 4 shows that the present invention carries out partial component enlarged drawing behind the punch die according to required resistance with alloy sheets.
Figure 5 shows that the present invention is with the schematic diagram of alloy sheets in conjunction with an anti-plating printed layers.
Figure 6 shows that the present invention plates the schematic diagram of conductive layer at the alloy sheets exposure plot of alloy sheets section surface.
Figure 7 shows that the present invention removes the schematic diagram of the anti-plating printed layers of alloy sheets.
Figure 8 shows that the schematic diagram of the present invention when moulding the fat injection molding.
Figure 9 shows that the present invention forms the alloy sheets clout schematic diagram of a plurality of resistance alloys monomers with punching press excision in addition.
Figure 10 shows that the present invention forms the schematic diagram of the conducting end utmost point with conducting end utmost point material at the two ends of resistance alloys monomer.
The primary clustering symbol description
100 resistance alloys monomers, 1 alloy sheets, 2 central authorities dash and remove section
21 waist side blows remove section 3 anti-printed layers 4a, the 4b conductive layers electroplated
5a, the 5b conducting end utmost point 6 are moulded fat injection molding cladding H resistance alloys section
H1 necking section H2 insulated section
H3a, H3b alloy sheets expose section I alloy sheets clout band to the open air
Embodiment
Specific embodiment of the present invention will further specify by following embodiment and accompanying drawing:
See also shown in Figure 1ly, it is depicted as the stereogram that the present invention at first prepares alloy sheets.Figure 2 shows that the cutaway view of 2-2 section among Fig. 1; This alloy sheets 1 is formed with an alloy sheets of extending the strip pattern, so have a length bearing of trend, select for use and the decision of gauge of its material are decided according to required resistance value, and for example the material of this alloy sheets can be alloy sheets such as nickel, chromium, manganese, aluminium, copper.
See also Fig. 3, shown in Figure 4, Fig. 3, Figure 4 shows that the present invention carries out schematic diagram and partial component enlarged drawing behind the punch die according to required resistance with alloy sheets, as shown in the figure, according to required resistance, according to predetermined shape this alloy sheets 1 is carried out punch die, so that this alloy sheets 1 forms a plurality of at this length bearing of trend resistance alloys section H spaced apart, and remain the alloy sheets clout band I (be that each resistance alloys section H adopts laterally and row arrangement, and link to each other) of each resistance alloys section of binding between each each resistance alloys section of resistance alloys section H with alloy sheets clout band I one serial connection.In this embodiment, with die stamping mode a plurality of central authorities of this alloy sheets 1 are dashed in advance and remove section 2 and dashed and remove, dashing to possess on removing in the section in these central authorities has a pair of waist side blow except that section 21, so that this resistance alloys section H possesses a necking section H1.
In addition, include an insulated section H2 and alloy sheets exposes section H3a, H3b to the open air, and this insulated section H2 must contain this necking section H1 at least fully, and this insulated section H2 exposes between section H3a, the H3b in two alloy sheets to the open air at this resistance alloys section H.
Again the insulated section H2 among each resistance alloys section H is prevented electroplating printed layers 3 (as shown in Figure 5) in conjunction with one, to coat this insulated section H2; Then carry out the step of two-sided copper facing (promptly plating conductive layer), as shown in Figure 6.A conductive layer 4a, 4b are plated in its surface at alloy sheets exposure plot H3a, the H3b of each resistance alloys section H of this alloy sheets 1, with the electrode as alloy resistance device.This conductive layer 4a, the selected material of 4b can be copper or other has the material of good conductive effect.
And then, the printed layers 3 of should anti-electroplating of this insulated section H2 is removed (as shown in Figure 7), so that this insulated section H2 exposes, and does resistance finishing to the resistance value that this resistance alloys section H is estimated, to obtain a resistance value more accurately.
All those skilled in the art can learn easily that all resistance is easier to resistance is adjusted to than high precision through after repairing, and also can improve the yield of production simultaneously.
Then, mould the step of fat injection molding, as shown in Figure 8.The insulated section H1 that is defined at each resistance alloys section H of this alloy sheets 1 form one coat mould fat injection molding cladding 6.So, can the insulated section H2 of this alloy sheets 1 form one coat mould fat injection molding or insulating varnish application.This moulds fat injection molding cladding 6 after sclerosis, can reach the protective resistance body and reach the purpose of insulation.This is moulded, and fat injection molding cladding 6 selected materials can be epoxy resin or other has the material of good insulation and covered effect.
Finish above-mentioned step of moulding the fat injection molding, can be with in addition punching press excision of this alloy sheets clout band I, use and form a plurality of resistance alloys monomers 100 (as shown in Figure 9) simultaneously, can form conducting end utmost point 5a, 5b (as shown in figure 10) with conducting end utmost point material again at the two ends of this resistance alloys monomer 100, for example the technology that can electroplate is sequentially electroplated two end surfaces of this resistance alloys monomer 100 of formation as this conducting end utmost point 5a, 5b, the scolding tin operation during in order to practical application in the future with nickel dam and tin layer.
With commercialization of the present invention the time, can each resistance alloys monomer 100 mould fat injection molding cladding 6 surfaces, stamp resistance value or other identification literal, color or pattern, be packaged into band shape with packing machine then, and volume is the attitude of rolling type.
By the above-mentioned embodiment of the invention as can be known, the value on the true tool industry of the present invention.But above embodiment only is used to illustrate preferred embodiment explanation of the present invention, and all those skilled in the art are when doing other all improvement and variation according to the above embodiment of the present invention explanation.Yet all improvement and variation that these are done according to the embodiment of the invention are in still belonging to protection range of the present invention.
Claims (6)
1. the manufacture method of a high precision alloy fled rheostat is characterized in that, comprises the following steps:
(a) according to required resistance, select an alloy sheets material for use, this alloy sheets material wherein possesses a length bearing of trend;
(b) according to required resistance, this alloy sheets is carried out punch die according to reservation shape, so that this alloy sheets forms a plurality of resistance alloys sections spaced apart at this length bearing of trend, this resistance alloys section includes an insulated section and two alloy sheets expose section to the open air, this insulated section exposes to the open air between the section in two alloy sheets, and remains the alloy sheets clout band of each resistance alloys section of binding between each resistance alloys section;
(c) insulated section in each resistance alloys section forms an anti-printed layers of electroplating;
(d) plate a conductive layer on the surface that each alloy sheets exposes section to the open air, with electrode as resistance alloys;
(e) remove the anti-printed layers of electroplating of being somebody's turn to do of this insulated section, so that this insulated section exposes;
(f) at insulation layer resistance value is done finishing;
(g) mould fat injection molding or insulating varnish application at this insulated section, mould fat injection molding cladding so that this insulated section coats one;
(h) this alloy sheets clout band is given punching press and separate, to form a plurality of resistance alloys monomers.
2. the manufacture method of high precision alloy fled rheostat as claimed in claim 1 is characterized in that, in the step (d), the alloy sheets of each resistance alloys section of this alloy sheets is exposed to the open air the two-sided conductive layer that all plates of section.
3. the manufacture method of high precision alloy fled rheostat as claimed in claim 1 is characterized in that, in the step (d), the selected material of this conductive layer is a copper.
4. the manufacture method of high precision alloy fled rheostat as claimed in claim 1 is characterized in that, step (f) also is included in this resistance alloys section is done resistance finishing according to the resistance value of estimating step.
5. the manufacture method of high precision alloy fled rheostat as claimed in claim 1 is characterized in that, rapid (h) also is included in the step of the two ends formation conducting end utmost point material of this resistance alloys monomer afterwards.
6. the manufacture method of high precision alloy fled rheostat as claimed in claim 5 is characterized in that, the conducting end utmost point material of this resistance alloys monomer includes a nickel dam and a tin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101090439A CN101118794B (en) | 2006-07-31 | 2006-07-31 | Manufacture process of high precision alloy fled rheostat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101090439A CN101118794B (en) | 2006-07-31 | 2006-07-31 | Manufacture process of high precision alloy fled rheostat |
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| CN101118794A CN101118794A (en) | 2008-02-06 |
| CN101118794B true CN101118794B (en) | 2010-11-10 |
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| CN2006101090439A Active CN101118794B (en) | 2006-07-31 | 2006-07-31 | Manufacture process of high precision alloy fled rheostat |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872667A (en) * | 2010-06-17 | 2010-10-27 | 南京萨特科技发展有限公司 | Method for manufacturing alloy precision chip resistor |
| CN102339665B (en) * | 2010-07-16 | 2013-03-13 | 光颉科技股份有限公司 | Method for producing alloy resistor |
| CN102436884A (en) * | 2011-09-15 | 2012-05-02 | 南京萨特科技发展有限公司 | Method for manufacturing alloy plate precision current sensing resistor |
| CN105244130B (en) * | 2015-11-03 | 2018-06-29 | 深圳市美隆电子有限公司 | A kind of production method of superminiature alloy fled rheostat |
| CN109411166A (en) * | 2018-10-18 | 2019-03-01 | 南京萨特科技发展有限公司 | A kind of alloy fled rheostat and its manufacturing method |
| CN110911074A (en) * | 2019-12-17 | 2020-03-24 | 苏州聚永昶电子科技有限公司 | Alloy micro-resistance stamping material sheet structure capable of improving production efficiency |
| CN110931194A (en) * | 2019-12-17 | 2020-03-27 | 苏州聚永昶电子科技有限公司 | Alloy micro-resistance stamping material sheet structure capable of improving production efficiency |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241008A (en) * | 1998-06-26 | 2000-01-12 | 幸亚电子工业股份有限公司 | Method for manufacturing high-resistance and high-voltage precise alloy resistors |
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2006
- 2006-07-31 CN CN2006101090439A patent/CN101118794B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241008A (en) * | 1998-06-26 | 2000-01-12 | 幸亚电子工业股份有限公司 | Method for manufacturing high-resistance and high-voltage precise alloy resistors |
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