How To Choose The Jig When Double-sided Mixed PCBA Over Wave Soldering?

Regarding the soldering of mixed circuit boards, whether wave soldering machine or manual soldering, there are problems of low efficiency, so it is particularly important to choose to use the appropriate wave soldering jig.

I. What is wave soldering jig?

Refers to the wave soldering process in the process, over the tin furnace used by a tool, used to carry the PCB board over the tin furnace and complete the welding operation of the jig.

II. What are the typical application scenarios of using fixtures?

1. Double-sided mixed assembly process, the back of the device and not red glue process, the need to use the jig.

2. Component body beyond the edge of the PCB board, can not pass the tin furnace, the need to use the jig.

3. PCB board for the continuous board, high temperature is prone to deformation, the need to use the jig.

III. Fixture in the wave soldering role

1. Prevent PCB from being deformed due to high temperature.

2. Can protect the SMD components, so that the PCB safely over the wave soldering.

3. Can play a good role in supporting the thin substrate or flexible circuit boards.

IV. Characteristics of wave soldering jig

1. High strength material, easy to carry out precision machining.

2. with high temperature resistance, good scale stability, not easy to deform.

3. with thermal conductivity, over the furnace heat can be quickly and evenly transferred to the circuit board.

4. Corrosion resistance, resistance to flux and cleaning agent corrosion.

5. in line with the requirements of anti-static.

6. Used in environmental protection products, but also to meet the requirements of environmental protection.

7. Moisture resistance and good electrical insulation.

V. The following two are the most widely used materials for wave soldering fixtures.

1. Glass Fiber Plate

Synthesized by glass fiber material and high heat resistance composite material, it has high mechanical function and dielectric function, better heat resistance and moisture resistance, the advantage is cheap, the disadvantage is the use of short life.

2. Composition stone

A kind of environmental protection stone, by more than 95% of natural stone powder, plus a few polyester and adhesive, mixed under vacuum, pressure, vibration molding and become, the disadvantage is the price is more expensive, the advantage is the use of longer life.

Features of NeoDen Wave soldering machine

Feature

Heating Method:  Hot Wind

Cooling method:  Axial fan cooling

Transfer Direction:  Left→Right

Temperature Control:  PID+SSR

Machine Control:  Mitsubishi PLC+ Touch Screen

Flux tank capacity:  Max 5.2L

Spray Method:  Step Motor+ST-6

Specification