The future trend of wave soldering, the disadvantages of selective wave soldering

Wave soldering equipment refers to the soldering equipment that sprays the molten solder into the solder crest required by the design through an electric pump or electromagnetic pump, and can also be formed by injecting nitrogen into the solder pool, so that the printed board pre-loaded with components passes through the solder crest to realize the soldering of the mechanical and electrical connection between the solder end of the component or the pin and the pad of the printed board.

With the intensification of competition in the wave soldering equipment industry, mergers and acquisitions, integration and capital operation between large enterprises are becoming more and more frequent, and excellent wave soldering equipment companies at home and abroad are paying more and more attention to the analysis and research of the wave soldering equipment market, especially the in-depth study of the current wave soldering equipment market environment and customer demand trends, in order to occupy the market in advance and obtain a first-mover advantage. Because of this, a large number of excellent wave soldering equipment brands have risen rapidly and gradually become leaders in the industry. The industry research network uses a variety of information processing technologies to collect, sort, process and analyze massive data in the wave soldering equipment industry market, provide customers with a package of information solutions and consulting services, minimize the investment risk and operating costs of wave soldering equipment customers, grasp investment opportunities, and improve the competitiveness of enterprises.

1. The purchase cost is high.

One reason is that the functions achieved by selective wave soldering are more complex than those of general wave soldering, so the machine structure will be more complex and the manufacturing cost will be relatively high. Another reason is that the mainstream selective wave soldering is still an imported product, and the localization has just begun, and only a few companies in China (such as Ridong, Jintuo, Essen Hengxin, etc.) are doing it. There is not much demand in the market, and the competition in the market is not strong.

2. Low efficiency.

The advantages of selective wave soldering in the quality control of solder joints are very significant, but at the same time, it is also very obvious compared with the traditional wave soldering in terms of output, because a nozzle can only weld one solder joint at the same time.

Advantages of selective wave soldering:

Local soldering that can't be done by wave soldering, selectively can be done!

The input of tin is small, but nitrogen protection is required, and the cost is not low!

The welding time can be set separately for each solder joint, and the solder joint with the size of the heat capacity can be welded with different parameters, but it means that the welding efficiency is low!

Therefore, the best value of the product can be completed by selective welding, or it can be completed with a fully automatic dip welding machine, or it can be produced in batches at low cost!

Disadvantages: high introduction cost, low welding efficiency, nitrogen protection is required, and the cost of a single welding point is not low!!

Imports: NAKUM, RPS, ERSA, KOI Domestic: There are more than a dozen at present!

At present, the ** foreign ** 10-200,000 US dollars, the domestic 5-100,000 US dollars! The investment is still relatively large, and everyone is more worried about the effect and rate of return!!

LT-P500B+ DS300FS Automatic Immersion Tin System Soldering Product Case!

The main way of wave soldering and wave selection is that the size of the contact wave is different, the wave selection is point contact, wave soldering small surface contact, and the welding efficiency will be higher through the flowing tin surface, but for the double-sided mixed board, it is higher than the 5mm device height, and the wave soldering can not achieve the effect of fine soldering and tin dragging, so we will choose selective wave soldering to supplement the double-sided mixed small batch, and the company uses it instead of ferrochrome for repair welding (single product), if the effect is high, we look forward to the introduction of ** and operating cost considerations, You can consider the automatic solder immersion machine to realize the mass production of double-sided mixed products and replace the production of small and medium-sized batches of wave soldering through the fixture soldering avoidance!

Imports: Nakum, RPS, ERSA are all good.

Domestic: Jintuo, Essen Hengxin is good.

The domestic selection welding ** is about 10-120,000 US dollars, and the imported ones are about 15-250,000 US dollars according to different products.

In fact, the key point of choosing soldering lies in the spray and tin pot. The reason why many customers want to use selective welding is because of two considerations.

One is that the solder joints of traditional welding are not full enough, especially the customers of the power board will focus on this, because the power board has strict.

Tin penetration requirements, solder joint size requirements. For example, the power board of UPS, the power board of the chassis, etc. This requires the selection of welding in the welding process.

At the same time, the temperature in the through hole can be maintained, so that the tin on the tin nozzle will not cool and solidify immediately after touching the PCB board. This is in the import.

Selective soldering such as RPS selective wave soldering in the United States is particularly prominent, which can set the temperature of nitrogen to achieve preheating.

Guaranteed tin penetration. The gap between domestic ones and domestic ones is still relatively large in this regard.

The second is that the distance between the soldering points is too close, for example, the boundary of the pad is only This has two requirements for the tin nozzle, one is the nitrogen protection.

Be quite high, otherwise the nozzle will easily clog. Second, the stability of the ejected tin pillar should be quite high, and a slight tin pillar jitter will cause.

Two pads with tin. At this point, the gap between domestic and imported products is also very large. Imported ones can generally be made in diameter, and even the tin nozzle. The current limit diameter of the domestic production is 3mm

Imported or domestic, Nakum, RPS, ERSA are good, domestic Jintuo, Essen Hengxin is good.

Engaged in the domestic production of welding equipment.

There are also selective wave soldering done directly.

Domestic relatively large brands, and selective wave soldering technology mature companies are also like, Ridong, Jintuo, etc.

653501517 Selective wave soldering process***.

Shenzhen Haobao automation equipment also has such equipment.

There are many of them, is your company looking for selective wave soldering?

Summary. Electromagnetic wave soldering technology is a new, efficient and green soldering technology, which has the advantages of good soldering effect and low energy consumption. It can be used for the welding of various metals and alloys, with strong adaptability and high efficiency, and can meet a variety of different welding requirements, so it has a wide range of application prospects.

The research of electromagnetic wave soldering technology is of great significance, on the one hand, it can improve the welding quality, reduce the welding loss, improve the welding efficiency, realize green welding, and be more environmentally friendly and efficient; On the other hand, it can better study the thermophysical and electromagnetic properties in the welding process, improve the reliability of welding technology, and ensure the quality of welding. Studies at home and abroad have shown that electromagnetic wave soldering technology has a huge market prospect and can be widely used in automobile, aerospace, electronics, machinery manufacturing and other fields. At the same time, although electromagnetic wave soldering technology has relatively mature R&D technology at home and abroad, there is still room for continuous technical research and improvement to meet more welding needs.

Electromagnetic wave soldering technology is a new, efficient and green soldering technology, which has the advantages of good soldering effect and low energy consumption. It can be used for the welding of various metals and alloys, Zhijiankong has the advantages of strong adaptability and high efficiency, and can meet a variety of different welding requirements, so it has a wide range of application prospects. The research of electromagnetic wave soldering technology is of great significance, on the one hand, it can improve the welding quality, reduce the welding loss, improve the welding efficiency, realize green welding, and be more environmentally friendly and efficient; On the other hand, it can better study the thermophysical and electromagnetic properties of the welding process, improve the reliability of the welding technology, and ensure the welding quality.

Studies at home and abroad have shown that electromagnetic wave soldering technology has a huge market prospect and can be widely used in automotive, aerospace, electronics, machinery manufacturing and other fields. At the same time, although electromagnetic wave soldering technology has relatively mature R&D technology at home and abroad, there is still room for continuous technical research and improvement to meet more welding needs.

I wish you dreams come true and may you succeed; I wish you a bright future and may you be happy and healthy; I wish you a good spring and a smooth sailing, and I wish you a happy and worry-free life; I wish you good fortune like the East China Sea, and may you be safe and auspicious.

That's one of the welding techniques. It is a welding method adopted by welders when they are engaged in work.

It is mainly used as a welding method for cleaning the section first when the welding surface is relatively large and wide.

Wave soldering is to let the welding surface of the plug-in board directly contact with the high-temperature liquid tin to achieve the purpose of welding, the high-temperature liquid tin maintains an inclined plane, and the liquid tin is formed by a special device similar to the phenomenon of waves, so it is called"Wave soldering".Wave soldering refers to the melting of solder (lead-tin.

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alloy), which is sprayed into the solder wave required by the design by an electric pump or electromagnetic pump, and can also be formed by injecting nitrogen into the solder pool, so that the printed board pre-loaded with components can pass through the solder wave to realize the soldering of the mechanical and electrical connection between the solder end of the component or the pin and the pad of the printed board.

As mentioned earlier, the welding of through-hole components of the current circuit board may often only account for a small part of the overall circuit board welding, in this case, the choice of welding has the following cost advantages:

Smaller equipment footprint.

Less energy consumption.

Lots of flux savings.

Dramatically reduce solder dross generation.

Significant reduction in nitrogen use.

There is no need to incur tooling and fixture costs.

The main brands that choose welding are: ERSA, PEK, RPS, PILLARHOUSE, NAKUM