Several common wave soldering fixtures and their respective characteristics of what?

What is wave soldering jig?

Wave soldering jig is a classification of the tin furnace jig, mainly refers to the wave soldering process, used to carry the PCB board over the tin furnace and complete the soldering operation of the jig, we usually also call it reflow soldering jig.

Why use wave soldering jig?

We know that an important feature of the wave soldering jig is high temperature 360 degrees without deformation, low heat conduction, small expansion, absorb furnace oil, the use of wave soldering jig can prevent PCB over wave soldering due to high temperature leads to PCB deformation, at the same time, due to the bottom surface of the PCB SMD components, the use of wave soldering jig can be the SMD components to protect up the PCB safety over wave soldering.

When do I need to use wave soldering jig?

1.PCB board for double-sided process, the back side of the parts and not red glue process need to use wave soldering jig;

2.Wave soldering fixtures are needed when the parts on the PCB board are beyond the edge of the PCB board and can not pass through the soldering furnace;

3.PCB board for the multi-connected board and high temperature is prone to deformation and special process capabilities need to use wave soldering fixtures.

What are the characteristics of wave soldering jig:

1.Can support thin substrate or flexible circuit boards.

2.Can be used for irregular shape of the substrate.

3.Can carry multiple boards to increase productivity.

4.To prevent the substrate in the back to the soldering, the phenomenon of bending wave soldering has a gradual increase in temperature in the environment, can continue to maintain its physical properties of the ability to make the synthesized stone can be in the wave soldering process, to achieve a high standard of results and will not have deformation of the situation occurs. durostone's base layer does not separate even when exposed to the harsh environment of 360°C for a short period of time and 300°C for a sustained period of time.

Wave soldering fixtures also known as over the tin furnace wave soldering fixtures, is for the PCB board over the wave soldering some parts need to be protected or through the fixtures to play a role in assisting the positioning of plug-ins designed by a kind of fixtures, the production of wave soldering fixtures of the material there are a lot of today we will talk to you about our common several wave soldering fixtures what kind of characteristics they have.

First, the glass fiber board wave soldering jig: wave soldering jig made of glass fiber board with good flatness, smooth surface, no pits, with high mechanical properties and dielectric properties, good heat resistance and moisture resistance, good processability. Room temperature of 150 ℃ still have high mechanical strength, can withstand high temperatures up to more than 300 degrees, in the dry state, wet state of good electrical properties, flame retardant, used for electrical, electronic and other industries insulating structural components, the color of black, white, green, yellow, etc., but also anti-static fiberglass panels to choose from, the price is low. Disadvantages: easy to delamination after a long time, not resistant to strong acids and alkalis, lead-free soldering is not applicable, relatively short life.

Second, the synthetic stone plate wave soldering jig: 1, the product has a high elasticity and impact resistance. 2 due to its natural silica and polymerization resin composition of synthetic stone is acid-resistant materials. 3. long time does not fade. 4 low-temperature conductivity, to ensure that the substrate on the state of the heat distribution. 5 long time after the use of the still can maintain the stability of the dimensions of the flat. 6, synthetic stone of the Synthetic Resin composition can effectively block flux activity. 7, to prevent tin tip. The synthetic resin component of synthetic stone can effectively block the activity of flux and prevent the generation of tin tip. 7, temperature resistance is generally between 300-350 degrees, and the temperature resistance can reach 385 degrees in a short period of time. Synthesized stone makes the ideal material for the bottom plate of the over-furnace jig, but due to the fact that there are domestic and imported synthetic stone in the market, and there are many kinds of synthetic stone, with large differences in performance, which makes the selection of the material more difficult.

Third, titanium alloy wave soldering jig: titanium alloy made of wave soldering strength and fracture toughness, strength and ordinary carbon steel, fatigue strength and resistance to crack expansion ability, good low temperature toughness, excellent corrosion resistance, titanium alloy melting point of 1660 ° C, than the iron, has a high thermal strength, the highest working temperature of some titanium alloys for the 5500C, is expected to reach 700oC. good corrosion resistance: 550 ° C Below the surface of titanium alloy is easy to form a dense oxide film, in the so not easily be further oxidized. Titanium alloy has the advantages of high strength, high temperature resistance, corrosion resistance, but its price is relatively expensive.

The use of wave soldering fixtures can avoid the gold finger or contact holes due to artificial contact and contamination, with the standardization of the width of the production line and increase the production efficiency to ensure the quality of PCB advantages, so we should be in the production of wave soldering fixtures according to the actual needs of the selection of the appropriate materials to be produced.

How long is the service life of wave soldering jig?

The first thing to look at the fixture material points are glass fiber plate, synthetic stone, imported synthetic stone, titanium alloy material. Because the wave soldering jig material and the use of temperature, etc., will directly affect the service life.

1, the more economical wave soldering fixture material is we often talk about the glass fiber board also called FR4. this wave soldering fixture material is characterized by cheap, for the production of small customers is a good choice. Fiberglass high temperature resistance can reach 300 ° C, service life of 5000 times - 8000 times.

2, the more commonly used wave soldering fixture material synthetic stone from the appearance of black, of course, there are gray and other colors commonly used or black, high temperature resistance up to 350 ° C, the service life of this material is usually 10,000 times -15,000 times. Imported synthetic stone 20000-25000 times.

3, the more expensive wave soldering jig material of course, titanium alloy material, this material is expensive processing time is long. Price is also introduced today in the three wave soldering fixture material is the most expensive. Service life is also the best usually can be used more than 5-10 million times.

HONY plastic can produce all kinds of wave soldering fixtures and fixture accessories, please do feel free to contact sales@honyplastic.com