CN102912278B - Lead-free metal spraying material - Google Patents
Lead-free metal spraying material Download PDFInfo
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- CN102912278B CN102912278B CN201210469789.6A CN201210469789A CN102912278B CN 102912278 B CN102912278 B CN 102912278B CN 201210469789 A CN201210469789 A CN 201210469789A CN 102912278 B CN102912278 B CN 102912278B
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- lead
- spraying material
- metal spraying
- free metal
- boron
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Abstract
The invention discloses a lead-free metal spraying material which is composed of main components and added modifying elements. The main components comprise stannum (Sn) and zinc (Zn), and the added modifying elements comprise at least one of neodymium (Nd) and boron (B). The lead-free metal spraying material comprises, by weight, 10% to 70% of Sn, 0.001% to 0.08% of B, 0.005% to 0.1% of Nd, and the balance Zn and no more than 0.08% of inevitable impurities, and the components account for 100%. According to the lead-free metal spraying material, a trace amount of B and rear earth Nu serve as the added modifying elements, sparse and toxic antimony is substituted, and the lead-free metal spraying material has the advantages that used amounts of the added modifying elements are small and product environment protection property and cost performance are superior. Alloy components serve as the lead-free metal spraying material; and compared with metal spraying layers sprayed with antimony-containing and lead-free metal spraying materials in the prior art, performances or yields of metallized film capacitors manufactured are basically consistent.
Description
Technical field
The present invention relates to a kind of no-lead gold spraying material, belong to the technical field of metallic film capacitor end face metal spraying alloy material.
Background technology
Gold spraying material is the alloy material for metallic film capacitor end face metal spraying, and typical traditional product is five yuan of gold spraying materials of lead base, is substituted by no-lead gold spraying material because containing a large amount of lead comprehensively.Existing no-lead gold spraying material is taking tin zinc as matrix, add a small amount of antimony and the improvement element of other trace, wherein the addition of antimony is 1～3%, the interpolation of antimony can obviously improve the performance of metallic film capacitor, but antimony is a kind of rare and scatter element, stock number is also less, and existing research shows that antimony has certain toxicity, in the past because the consumption of antimony is less, and toxicity is also lower than lead, therefore wouldn't be paid close attention to by people, along with the continuous increase of the whole world to environmental protection consciousness, the negative impact that antimony brings environment starts to become the focus that people pay close attention to, particularly the country such as European Union particularly pays close attention to the negative impact that antimony brings environment.
Summary of the invention
For this reason, the present invention studies in the essentially consist of tin-zinc base leadless metal spraying material, adds micro-boron and rare earth neodymium element substitution antimony element, to improve the existing deficiency existing containing antimony no-lead gold spraying material, meets the requirements at the higher level that people propose environment protection.
The technical scheme that the present invention solves existing issue is: a kind of no-lead gold spraying material, elementary composition by principal constituent and interpolation improvement, principal constituent comprises tin and zinc, adding improvement element is at least one element in neodymium, boron, and each components based on weight percentage is respectively: tin (Sn) 10～70%, boron (B) 0.001～0.08%, neodymium (Nd) 0.005～0.1%, all the other are zinc (Zn), and total amount is not more than 0.08% inevitable impurity, and the weight percent summation of each component is 100%.
In the present invention, the interpolation of boron can with matrix in tin and zinc form metallic compound, these compounds form disperse shape hard point in alloy substrate, and have good conductivity, research shows, the present invention is for metallic film capacitor end face metal spraying, boron can play the effect similar to antimony in alloy, can improve the performance of metallic film capacitor, a large amount of tests show, the preferred addition of boron is 0.005～0.03%.
In the present invention, add neodymium and not only can improve the processing characteristics of alloy, research shows, adds micro-rare earth neodymium in alloy, can improve the performance of metallic film capacitor, and a large amount of tests show, the preferred addition of neodymium is 0.01～0.04%.
Research shows, adds micro-boron and rare earth neodymium in alloy simultaneously, and its combined effect is better, can not only improve the performance of metallic film capacitor, also can obviously improve alloy processing characteristics, its combinatorial optimization content is boron 0.01～0.03% simultaneously, and rare earth neodymium content is 0.02～0.04%.
Due to the impact of raw material and the course of processing, in gold spraying material alloy composition, inevitably contain a small amount of impurity such as iron (Fe), silicon (Si), plumbous (Pb), cadmium (Cd), total impurities is no more than 0.08%, in impurity, the composition of various compositions is respectively by weight percentage: iron (Fe)≤0.02%, silicon (Si)≤0.01%, plumbous (Pb)≤0.05%, cadmium (Cd)≤0.002%, each impurity weight percent does not affect the properties of no-lead gold spraying material of the present invention.
The present invention adds micro-boron and rare earth neodymium element in the essentially consist of tin zinc-base, for the environmental protection and the product performance that improve tin-zinc base leadless metal spraying material provide a kind of new approach.The present invention adopts micro-boron and rare earth neodymium as the improvement element adding, and substitutes rare loosely and have an antimony element of certain toxicity, and the improvement element consumption with interpolation is few, the product feature of environmental protection and the more excellent feature of cost performance.The alloying constituent being made up of the present invention is as no-lead gold spraying material, for metallic film capacitor end face metal spraying, metal plating on its gilding layer and metallized film has good contact, the gilding layer of the alloying constituent forming through spraying the present invention, containing compared with the gilding layer of the no-lead gold spraying material alloy of antimony, the metallic film capacitor performance or the yield rate that make are basically identical with spraying prior art.
Embodiment
The present invention has adopted the embodiment of 33 different-alloy components and the comparative example of 6 different-alloy components, further illustrates novelty of the present invention, and the alloy compositions of each embodiment and comparative example and the detected value of properties thereof are listed as follows table 1:
The properties detected value of table 1: embodiment and comparative example
The listed data declaration of table 1, the present invention, by add micro-boron and rare earth neodymium in tin-zinc base leadless metal spraying material alloy, can reach the effect of prior art containing the no-lead gold spraying material of antimony, and therefore the present invention has more the feature of environmental protection, and its cost performance is more excellent.
The present invention is not limited to above-described embodiment, can become according to different performance requriementss different proportionings to reach the requirement of producing and using manufacturer with use occasion optimum combination, but inequality limits the scope of the invention in any form.
Claims (2)
1. a no-lead gold spraying material, it is characterized in that: elementary composition by principal constituent and interpolation improvement, principal constituent comprises tin and zinc, adding improvement element is at least one element in neodymium, boron, and each components based on weight percentage is respectively tin (Sn) 10～70%, boron (B) 0.02～0.08%, neodymium (Nd) 0.005% or 0.02 ~ 0.06%, all the other are zinc (Zn), and total amount is not more than 0.08% inevitable impurity, and the weight percent summation of each component is 100%.
2. no-lead gold spraying material as claimed in claim 1, is characterized in that: boron (B) constituent content of described composition is 0.02～0.03%.
3. no-lead gold spraying material as claimed in claim 1, is characterized in that: rare earth neodymium (Nd) constituent content of described composition is 0.02～0.04%.
4. no-lead gold spraying material as claimed in claim 1, is characterized in that: boron (B) and rare earth neodymium (Nd) element of described interpolation improvement elemental composition, and when both are used in combination, boron (B) content is 0.02%, rare earth neodymium (Nd) content is 0.02～0.04%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469789.6A CN102912278B (en) | 2012-11-16 | 2012-11-16 | Lead-free metal spraying material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469789.6A CN102912278B (en) | 2012-11-16 | 2012-11-16 | Lead-free metal spraying material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102912278A CN102912278A (en) | 2013-02-06 |
| CN102912278B true CN102912278B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210469789.6A Active CN102912278B (en) | 2012-11-16 | 2012-11-16 | Lead-free metal spraying material |
Country Status (1)
| Country | Link |
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| CN (1) | CN102912278B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718868A (en) * | 1995-11-30 | 1998-02-17 | Mitsui Mining & Smelting Co., Ltd. | Lead-free tin-zinc-based soldering alloy |
| CN1644301A (en) * | 2005-01-20 | 2005-07-27 | 东南大学 | Low melting point tin-zinc solder without lead and soldering paste |
| CN101050529A (en) * | 2007-05-17 | 2007-10-10 | 戴国水 | Metal spraying material of tin, zinc, cupper, and chrome without lead |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012218002A (en) * | 2011-04-05 | 2012-11-12 | Nanojoin Kk | Lead-free solder alloy |
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2012
- 2012-11-16 CN CN201210469789.6A patent/CN102912278B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718868A (en) * | 1995-11-30 | 1998-02-17 | Mitsui Mining & Smelting Co., Ltd. | Lead-free tin-zinc-based soldering alloy |
| CN1644301A (en) * | 2005-01-20 | 2005-07-27 | 东南大学 | Low melting point tin-zinc solder without lead and soldering paste |
| CN101050529A (en) * | 2007-05-17 | 2007-10-10 | 戴国水 | Metal spraying material of tin, zinc, cupper, and chrome without lead |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2012-218002A 2012.11.12 |
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| CN102912278A (en) | 2013-02-06 |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qian Guotong Inventor after: Dai Guoshui Inventor after: Wang Huahua Inventor after: Dai Dengfeng Inventor after: Zhang Qiang Inventor before: Dai Guoshui |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DAI GUOSHUI TO: QIAN GUOTONG DAI GUOSHUI WANG HUAHUA DAI DENGFENG ZHANG QIANG |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130206 Assignee: Shaoxing Tianlong Tin Materials Co., Ltd. Assignor: Dai Guoshui Contract record no.: 2014330000340 Denomination of invention: No-lead metal spraying material Granted publication date: 20140730 License type: Exclusive License Record date: 20140901 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |