Characteristics And Application Of Wave Soldering Fixture

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

Wave soldering fixtures, also known as the over-tin oven wave soldering fixtures, is designed for some of the parts on the PCB need to protect the fixtures, or through the fixtures to play a role in assisting the positioning of the plug-in production of wave soldering fixtures of a variety of materials today, let us let us talk about several common wave soldering fixtures and their characteristics.

First, the glass fiber plate wave soldering jig:

Wave soldering fixtures made of glass fiber plate good flatness, smooth surface, no pockmarks, high mechanical properties and dielectric properties, heat and moisture resistance, good processing performance. At room temperature 150 ℃, still has high mechanical strength, can withstand high temperatures up to 300 degrees above in the dry state,, wet state of good electrical properties, flame retardant, used for electrical, electronic and other industries in the insulating structural components are black, white, green, yellow, etc., there are also anti-static fiberglass panels are available at a low price. Disadvantages: easy to delamination after a long time, not resistant to strong acids and alkalis, lead-free solder is not suitable, the service life is also relatively short.

Second, the wave soldering jig of synthetic stone plate:

1. The product has high elasticity plasticity and impact resistance.

2. Because it is a stone synthesized from natural silica and polymer resin, is acid-resistant material.

3. The color will not fade for a long time.

4. Low temperature conductivity ensures heat distribution on the substrate.

5. It can maintain dimensional stability and flatness after long-term use.

6. The Synthetic Resin component of artificial 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 for a short period of time, the temperature resistance can reach 385 degrees. Artificial stone is the ideal material for the base plate of the furnace fixture but there are many types of synthetic stone on the market, there are domestic and imported, the nature of the difference is large, the selection of materials more difficult.

Third, titanium alloy wave soldering jig:

Titanium alloy manufacturing wave soldering strength and fracture toughness is high, strength and ordinary carbon steel is similar, fatigue strength and crack extension resistance performance is good, good low-temperature toughness, excellent corrosion resistance titanium alloy melting point of 1660 ° C, higher than the melting point of iron, has a high thermal strength of certain titanium alloys, the highest working temperature of 5500 C, is expected to reach 700 C. Corrosion resistance is good: 550 ° C or below is easy to be in the titanium alloy The surface of the titanium alloy is easy to form a dense oxide film, so it is not easy to be further oxidized. Titanium alloys have the advantages of high strength, high temperature resistance and corrosion resistance, but relatively expensive.

The role of wave soldering fixtures

In order to solve the existing wave soldering fixtures usually used to press the circuit board pressure buckle and pressure components of the elastic pressure buckle, there is a single point of force is small, the application process of switching frequently, disassembly and installation of a long time, easy to destroy the problem of wave soldering fixtures contain substrate and stopping the tin bar, in the substrate is equipped with a few ends of the board to be soldered on the board of the clamping device for clamping the clamping device is located in the inside of the bar and can be relative to the tin bar. This clamping device is located on the inside of the solder bar and can slide relative to the substrate. The utility model to deal with the common pressure buckle pressure circuit boards when the lack of strength, the force is not average problem, effectively prevent the circuit board welded by the high temperature deformation; and switching is convenient, not easy to be damaged, just need to improve it a little, can be used to locate the components to be welded.

Green throughput are corrosion formation, especially electronic products, however, is not completely so, because it is difficult to distinguish in the end is green rust or other chemical products, but in general found that the green material should be a warning sign, we must immediately find out the reason, especially this green material will be more and more big, should pay close attention to the general can be used to improve the cleaning.

The press-fit part has an arc-shaped projecting end, the housing has a first opening which is connected to the holding cavity, and the projecting end extends out of the holding cavity through the first opening.