CN103373045B - Printing electroforming Ferro-nickel alloy screen plate and preparation method thereof - Google Patents
Printing electroforming Ferro-nickel alloy screen plate and preparation method thereof Download PDFInfo
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- CN103373045B CN103373045B CN201210010787.0A CN201210010787A CN103373045B CN 103373045 B CN103373045 B CN 103373045B CN 201210010787 A CN201210010787 A CN 201210010787A CN 103373045 B CN103373045 B CN 103373045B
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Abstract
The invention discloses a kind of printing electroforming Ferro-nickel alloy screen plate and preparation method thereof, described web plate face has the opening figure region meeting print request; Dilval contains nickel element, iron Fe element; The mass percent of each element is: Ni:38 ~ 44%, Fe:56 ~ 62%.The present invention obtain its performance of dilval Printing screen of higher iron-holder by electrocasting method and electroformed nickel Printing screen more close.Meanwhile, the present invention effectively can reduce the manufacturing cost of web plate, and obtained web plate opening hole wall is smooth, meets print request well.In addition, web plate uniformity of the present invention is high, board surface quality and port quality good.
Description
Technical field
The invention belongs to electromolding alloy codeposition technique field, relate to a kind of electroforming Ni-Fe alloy web plate, particularly relate to a kind of high Fe contained printing electroforming Ferro-nickel alloy screen plate, iron content is similar to invar alloy plate; Meanwhile, the invention still further relates to the preparation method of above-mentioned printing electroforming Ferro-nickel alloy screen plate.
Background technology
Along with China's electron trade develops rapidly, stencil print process is also applied at electronics manufacturing, and SMT printing is exactly typical case.Electronic component and PCB to be welded in Electronic products manufacturing process and need first tin to be placed on PCB, and PCB has hundreds of pad need tin, the position of each pad correspond to electronic component, will print exactly needing the disposable first-class tin the best way accurately of the pad of upper tin.Method usual in electronics manufacturing is the stainless steel substrates that making one piece has numerous small holes, and each hole correspond to the pad that needs tin, and then stainless steel substrates is attached on the grenadine stretched tight, grenadine is attached on the bottom surface of print stencil net frame.
Whether the tin cream on pad is smooth, even, whether consumption is suitable will directly affect the effect of electronic component SMT, when particularly having precision electronic element pad and hot pressing finger, requires higher to printing stencil.
Printing stencil is used to the mould of print solder paste, generally adopts steel mesh at present.And traditional handicraft can not reach requirement by the punching block Aperture precision that laser cutting technique makes, board surface quality is also not high enough.
Electroformed nickel web plate is a kind of high-quality web plate, the characteristics such as port quality is good, appearance is good, uniformity is good determine its position become more and more important in the position of printing industry, the metal mask plate of good edge of opening effect is more conducive to the printed substrate realizing high-quality simultaneously, is conducive to high-precision wiring board and makes.But because the cost of electroformed nickel is higher, energy consumption is comparatively large, the less stable of electroforming nickel bath, the prospect of electroformed nickel web plate also receives some restrictions.
In view of this, a kind of similar electroformed nickel web plate performance how is developed or the more excellent new product of performance is most important.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of printing electroforming Ferro-nickel alloy screen plate, can improve hardness, plate face brightness, coating surface quality.
Another object of the present invention is to the preparation method proposing above-mentioned electroforming Ni-Fe alloy web plate, can obtain the printing metal otter board of high Fe content, hardness is high, and plate face brightness is good, and coating surface quality is good; Low compared with the cost of electroformed nickel metal otter board, save the energy.
According to the one printing electroforming Ferro-nickel alloy screen plate of the embodiment of the present invention, described web plate face has the opening figure region meeting print request; Dilval contains nickel element, iron Fe element; The mass percent of each element is: Ni:38 ~ 44%, Fe:56 ~ 62%.
In the preferred embodiment, the opening of described web plate has reversed cone angle; The opening angle of described web plate is preferably 2 °-6 °.
Preferably, the THICKNESS CONTROL of described web plate is within the scope of 20 ~ 100 μm; The uniformity COV of ferro-nickel alloy plating is less than 5%; Ferro-nickel alloy plating surface brightness is one-level light.
According to the preparation method of a kind of above-mentioned electroforming Ni-Fe alloy web plate of the embodiment of the present invention, described method comprises the steps: to prepare electroforming core, by the oil removing of pre-treatment, washing, sandblasting step, by clean for mandrel surface process; Carry out pad pasting, exposure, development after process is clean, form the dry film graphics field consistent with required opening figure at mandrel surface; Then improved the adhesion of the mandrel surface in five dry film regions by electroforming front activating operation, during electroforming, controlled the thickness of coating by control electroforming time and current density; Coating surface quality is controlled, comprising control solution composition, current density, bath temperature, pH and additive step, to reach the iron content of the web plate coating prepared 40% ~ 55% by the ratio and amount that control additive.
Preferably, the plate face bright in mirror surface of described electroforming core, no marking, plate face length is wide is 600mm*800mm.
In the preferred embodiment, obtained the dilval Printing screen of higher iron-holder by electrocasting method, its performance and electroformed nickel Printing screen more close.The present invention effectively can reduce the manufacturing cost of web plate, and obtained web plate opening hole wall is smooth, meets print request well.Web plate uniformity of the present invention is high, board surface quality and port quality good.
Meanwhile, the present invention can obtain the printing metal otter board of high Fe content, and hardness is high, and plate face brightness is good, and coating surface quality is good; , the saving energy low compared with the cost of electroformed nickel metal otter board.In addition, the Aperture precision of web plate of the present invention is high; The present invention becomes discarded impurity iron and is converted to alloy constituent, reduces solution maintenance cost and three-protection design burden.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the flow chart of the electroforming Ni-Fe alloy web manufacturing process of one embodiment of the invention.
Fig. 2 is the schematic diagram utilizing screen printing tin cream of the present invention.
Fig. 3 is another schematic diagram utilizing screen printing tin cream of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
The present invention discloses a kind of high Fe contained printing electroforming Ferro-nickel alloy screen plate, described web plate face has the opening figure region meeting print request; Dilval contains nickel element, iron Fe element; The mass percent of each element is: Ni:38 ~ 44%, Fe:56 ~ 62%.
Metal otter board of the present invention is applied to high accuracy wiring board and makes, and this metal otter board has certain magnetic, hardness and brightness.This kind of printing web plate adopts electroforming process, supporting corresponding formulation of electroforming solution, and can prepare the printing web plate of iron content in 56 ~ 62% scopes, all the other are nickel.This kind of web plate more traditional electroforming pure nickel web plate, add ferro element, thus improve hardness and the magnetic of web plate, and within the scope of this, iron content is higher, the cost of saving is also more.
In the preferred embodiment, the opening of described web plate has reversed cone angle; The opening angle of described web plate is preferably 2 °-6 °.
Particularly, refer to Fig. 2, Fig. 3, whole paste-tin printing apparatus comprises scraper 1, tin cream 2, electroforming mask plate 3, printed base plate 4, brazing platform 5.Printing electroforming Ferro-nickel alloy screen plate Aperture precision is high, and product component can meet print request simultaneously, and screen printing face opening size is less than character face opening size, opening forms a back taper angle, as shown in Fig. 3 split shed 6, during printing, not easily take away tin cream, be conducive to lower tin.
Preferably, the THICKNESS CONTROL of described web plate is within the scope of 20 ~ 100 μm, and product thickness also can control in lower scope; Electroforming Ni-Fe alloy printing metal otter board, under guarantee meets the condition of print request, has saved product cost.In addition, in the present embodiment, the uniformity COV of ferro-nickel alloy plating is less than 5%; Ferro-nickel alloy plating surface brightness is one-level light.
The present invention discloses the preparation method of described electroforming Ni-Fe alloy web plate simultaneously, refers to Fig. 1, and described preparation method comprises the steps:
Step S1, preparation electroforming core; In the present embodiment, the plate face bright in mirror surface of described electroforming core, no marking, plate face length is wide is 600mm*800mm.
Step S2, the oil removing by pre-treatment, washing, sandblasting step, by clean for mandrel surface process;
Step S3, stick one deck dry film at the mandrel surface handled well, and to be exposed to the sun on dry film consistent dry film graphics field, black and required printing opening figure region by exposure machine;
Step S4, by development step, with alkali lye by for exposure dry film clean up, leave exposure figure region dry film, namely consistent with required printing opening figure dry film figure;
Core after step S5, above-mentioned steps improves the adhesion without the mandrel surface in dry film region by electroforming front activating operation, is controlled the thickness of coating during electroforming by control electroforming time and current density;
Step S6, by control additive ratio and amount control coating surface quality, comprising control solution composition, current density, bath temperature, pH and additive step, to reach the iron content of the web plate coating prepared 56% ~ 62%.
In the present embodiment, described solution composition can specifically comprise: the nickelous sulfate of 180 ~ 200g/L, the nickel chloride of 30 ~ 50g/L, the boric acid of 40 ~ 50g/L, the ferrous sulfate of 14 ~ 17g/L.Described electroforming solution also comprises following additive: the agent that walks of the stabilizing agent of 0.5 ~ 1ml/L, the wetting agent of 0.5 ~ 1ml/L, 1 ~ 5ml/L.In addition, the concrete electroforming process parameter of described preparation method is as follows: pH value is 3.4 ~ 3.8; Temperature is 40 ~ 45 DEG C; Cathode-current density value is 1-3A/dm
2; Plating speed is 10-20 μm/h.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (5)
1. an electroforming Ferro-nickel alloy screen plate is used in printing, it is characterized in that described web plate face having the opening figure region meeting print request; Dilval contains nickel element, iron Fe element; The mass percent of each element is: Ni:38 ~ 44%, Fe:56 ~ 62%; The opening of described web plate has reversed cone angle, and the opening angle of described web plate is at 2 °-6 °; The uniformity COV of ferro-nickel alloy plating is less than 5%.
2. printing electroforming Ferro-nickel alloy screen plate according to claim 1, is characterized in that, the THICKNESS CONTROL of described web plate is within the scope of 20 ~ 100 μm.
3. printing electroforming Ferro-nickel alloy screen plate according to claim 1, is characterized in that, ferro-nickel alloy plating surface brightness is one-level light.
4. the preparation method of one of claims 1 to 3 described printing electroforming Ferro-nickel alloy screen plate, it is characterized in that, described method comprises the steps: to prepare electroforming core, by the oil removing of pre-treatment, washing, sandblasting step, by clean for mandrel surface process; Carry out pad pasting, exposure, development after process is clean, form the dry film graphics field consistent with required opening figure at mandrel surface; Then improve the adhesion without the mandrel surface in dry film region by electroforming front activating operation, during electroforming, controlled the thickness of coating by control electroforming time and current density; Coating surface quality is controlled by the ratio and amount that control additive; By controlling solution composition, current density, bath temperature, pH and additive step, to reach the iron content of the web plate coating prepared 56% ~ 62%;
Described solution composition specifically comprises: the nickelous sulfate of 180 ~ 200g/L, the nickel chloride of 30 ~ 50g/L, the boric acid of 40 ~ 50g/L, the ferrous sulfate of 14 ~ 17g/L;
Described plating solution also comprises following additive: the agent that walks of the stabilizing agent of 0.5 ~ 1ml/L, the wetting agent of 0.5 ~ 1ml/L, 1 ~ 5ml/L;
The concrete electroforming process parameter of the preparation method of described printing electroforming Ferro-nickel alloy screen plate is as follows: pH value is 3.4-3.8; Temperature is 40 ~ 45 DEG C; Cathode-current density value is 1 ~ 3A/dm
2; Plating speed is 10 ~ 20 μm/h.
5. the preparation method of printing electroforming Ferro-nickel alloy screen plate according to claim 4, is characterized in that, the plate face bright in mirror surface of described electroforming core, no marking, and plate face length is wide is 600mm*800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010787.0A CN103373045B (en) | 2012-04-17 | 2012-04-17 | Printing electroforming Ferro-nickel alloy screen plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010787.0A CN103373045B (en) | 2012-04-17 | 2012-04-17 | Printing electroforming Ferro-nickel alloy screen plate and preparation method thereof |
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| CN103373045A CN103373045A (en) | 2013-10-30 |
| CN103373045B true CN103373045B (en) | 2016-03-02 |
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| CN201210010787.0A Expired - Fee Related CN103373045B (en) | 2012-04-17 | 2012-04-17 | Printing electroforming Ferro-nickel alloy screen plate and preparation method thereof |
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| CN105609424A (en) * | 2015-12-24 | 2016-05-25 | 江苏长电科技股份有限公司 | Sandwich packaging technique with exposed frame |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804138A (en) * | 2005-11-14 | 2006-07-19 | 深圳市允升吉电子有限公司 | Mask electro-forming method for vaporization coating of organic light-emitting display |
| CN101092720A (en) * | 2006-06-20 | 2007-12-26 | 比亚迪股份有限公司 | An electroform method |
| CN201942742U (en) * | 2010-12-01 | 2011-08-24 | 东莞宏威数码机械有限公司 | Adsorption component of masking film board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10250032A (en) * | 1997-03-11 | 1998-09-22 | Oudenshiya:Kk | Metal mask for printing |
| JP2006347165A (en) * | 2005-05-20 | 2006-12-28 | Process Lab Micron:Kk | Metal mask for making pattern |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804138A (en) * | 2005-11-14 | 2006-07-19 | 深圳市允升吉电子有限公司 | Mask electro-forming method for vaporization coating of organic light-emitting display |
| CN101092720A (en) * | 2006-06-20 | 2007-12-26 | 比亚迪股份有限公司 | An electroform method |
| CN201942742U (en) * | 2010-12-01 | 2011-08-24 | 东莞宏威数码机械有限公司 | Adsorption component of masking film board |
Non-Patent Citations (1)
| Title |
|---|
| Ni-Fe、Ni-Fe-Cr合金箔电沉积制备工艺及性能的研究;王灵锋;《中国优秀硕士学位论文全文库（工程科技Ⅰ辑）》;20120115(第1期);第2页、第43-47页 * |
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