Zinc-aluminum-copper-titanium-neodymium spray coating alloy solder and method of manufacturing the same

A copper-titanium, zinc-aluminum technology, applied in welding equipment, metal processing equipment, welding/cutting media/materials, etc., to achieve the effects of high mechanical strength, improved service life, and strong adhesion

Active Publication Date: 2010-09-29
BEIJING XINLI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the existing lead-free gold-sprayed solders, some have high cost due to the large tin content, and although some do not contain tin components to reduce the cost, they are used for the metal lead-out surface formed after spraying both ends of the metallized film capacitor chip. In corrosive environments such as marine atmospheric areas, tidal range areas, and salt spray areas, due to poor corrosion resistance, the metal lead-out surface is severely corroded, resulting in reduced reliability or failure of the whole machine

Method used

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  • Zinc-aluminum-copper-titanium-neodymium spray coating alloy solder and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Raw materials (kg): aluminum 4.0, copper 0.5, titanium 1.5, neodymium 0.05, zinc 94.04.

[0022] Preparation method: Heat and melt the zinc block and continue to raise the temperature and keep it at 680±20°C. Bind the titanium block to the lower end of the stainless steel stirring rod with a 1kg copper wire, press it into the molten zinc solution and corrode for 1 hour, then stir for 0.5 hour. Use copper foil to wrap the neodymium rare earth metals taken out of kerosene quickly and tightly, then wrap tightly with 2kg aluminum foil on the outer layer, use 1kgφ2mm copper wire to bind the wrapped neodymium package to the lower end of the stainless steel stirring rod, and press it into the above In the molten zinc solution, after 1 hour of erosion, stir for 1 hour to obtain the zinc-aluminum-copper-titanium-neodymium-neodymium gold-sprayed solder. The erosion and stirring time should be sufficient to ensure the completion of the reaction and the uniformity and stability of ...

Embodiment 2

[0024] Raw materials (kg): aluminum 4.5, copper 0.8, titanium 0.06, neodymium 0.1, zinc 94.04.

[0025] Preparation method: heat and melt the zinc block and continue to heat up and keep it at 600°C; bind the titanium block to the lower end of the stainless steel stirring rod with 2kg copper wire, press it into the molten zinc solution for corrosion for 2 hours, and stir for 1 hour. Use copper foil to wrap the neodymium rare earth metals taken out of kerosene quickly and tightly, then wrap tightly with 1kg aluminum foil on the outer layer, use 1kgφ2mm copper wire to bind the wrapped neodymium package to the lower end of the stainless steel stirring rod, and press it into the above In the molten zinc solution, after melting for 2 hours, stir for 1.5 hours to obtain zinc-aluminum-copper-titanium-neodymium-sprayed gold solder.

Embodiment 3

[0027] Raw materials (kg): aluminum 5.0, copper 1.0, titanium 0.09, neodymium 0.05, zinc 93.06.

[0028] Preparation method: with embodiment 1.

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Abstract

The invention relates to a metalizing mylar capacitor metal educing surface alloy solder which is used for working under the environments of a ocean atmosphere zone, a tide range zone and a salt-spray zone, in particular to a zinc aluminum copper titanium neodymium spraying alloy solder and a preparation method thereof. The weight parts of each chemical composition in the solder are as follows: aluminum (Al), 2 to 7; copper (Cu), 0.5 to 1.0; titanium (Ti), 0.05 to 1.5; neodymium (Nd), 0.05 to 0.5; and remaining zinc (Zn). The zinc aluminum copper titanium neodymium spraying alloy solder of the invention has the advantages that the alloy solder has good wetting property with the electrode layer on the end surface of the capacitor metalizing mylar chip and is strong in adhesive force; the metal educing surface formed by the spraying process is good in conductivity, high in mechanical strength and firmly welded with metal pins of the capacitor and when the pins are kovar wire or iron wire nickel plating and tin plating alloys, welding can be carried out by using halogen-free organic soldering flux, and especially when the capacitor works under the severe environment of moist salt-fogcorrosion, the alloy solder still keeps high reliability.

Description

technical field [0001] The invention relates to a zinc-aluminum-copper-titanium-neodymium alloy solder, which belongs to the technical field of alloy solder preparation for spraying end faces of metallized polyester film capacitors. Background technique [0002] In the electronics industry, the alloy solder used for spraying the end face of metallized film capacitors is currently divided into two categories of products on the market: one is the traditional lead-containing alloy solder, the other is lead-free alloy solder, and the lead-containing alloy During the production and use of solder, as well as electronic waste, a large amount of lead will be decomposed, which directly threatens human health and damages the ecological environment, so it is gradually replaced by lead-free alloys. Among the existing lead-free gold-sprayed solders, some have high cost due to the large tin content, and although some do not contain tin components to reduce the cost, they are used to form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02B23K35/28
Inventor 丁飞黄云海李云丁继义杨笔毫黄焱王致岭仵桂德刘力萍刘彤陈国民葛立良潘峰张仁静雷本浩马健丁秀英张树谦李峰
Owner BEIJING XINLI MACHINERY
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