Solder paste rewarmer operating instructions

Solder paste rewarmer is one of the essential equipments in the electronic manufacturing industry, which plays an important role in the mounting production line.

It plays an important role in the mounting production line. The main function of the solder paste rewarmer is to melt the solder paste by heating to reach the preset temperature curve after the component mounting is completed.

The main function of the solder paste rewarmer is to melt the solder paste after the component is mounted by heating to reach the preset temperature curve, so as to firmly fix the component. This article will

This article will provide readers with a Paste Reheater operation guide through the specific operation procedures and tips for use.

This article will

I. Preparation

1. Check whether the solder paste rewarmer has been properly connected to the power supply, and ensure that the voltage and current stability.

The nature of the temperature return machine.

2. Check whether the no-load temperature and the actual temperature of the temperature return machine are in line with each other, and make sure the accuracy of the temperature sensor of the temperature return machine.

3. Check whether the fan system of the temperature return machine is functioning properly to ensure that the flow of heat can be evenly distributed on the entire PCB.

Distributed throughout the PCB board.

4. Check whether the solder paste used in the temperature return machine is in line with the specifications, if there are quality problems, it will cause the

solder joints are not stable.

Second, adjust the main parameters

1. Preheating temperature: preheating temperature is the first step back to the temperature machine. Because the temperature of the circuit board and components

are very different, so you need to heat the circuit board and increase the temperature first, and gradually make the temperature of the circuit board evenly

distribution. The preheating temperature is adjusted according to the material, thickness and number of solder joints of the board. In general, the preheating temperature is set at 70°C.

In general, the preheating temperature is set at 70 ℃ -100 ℃.

2. Return temperature: The return temperature is one of the most important parameters. Temperature is not only related to the component

welding strength, but also determines the welded joint morphology, electrical properties and other important indicators. Therefore, for different

components and circuit boards, you need to set different temperatures. Usually the temperature is 20-40°C above the melting point of the board and the components.

Components of the melting point of 20 ℃ -40 ℃ is appropriate.

3. Temperature return time: temperature return time refers to the time required to warm up from the preheating temperature to the temperature return.

The temperature return time depends on the thickness of the board, the temperature of the components. Temperature return time depends on the thickness of the board, the size and number of components. If the number of components is too much, then

need to extend the temperature return time.

4. Cooling time: After the completion of the temperature return, you need to ensure that the solder joints are sufficiently cooled, so as to avoid component breakage.

broken. In general, you need to set 10 ℃ - 30 ℃ cooling temperature, keep at least

30 ℃ cooling temperature, keep at least 1 minute or more.

Precautions

1. Before using the solder paste rewarmer, you need to clean the machine, especially the soldering room inside the machine.

The soldering room should reach a considerable degree of purification to ensure the quality and stability of the solder joints.

2. Heat conduction cannot be carried out until the temperature of the heating oil tank reaches the preset temperature.

3. On the reverse side of the PCB board there will be some large components, need to pay attention to these components in the process of heat conduction

In the process of heat conduction, these components may be set into the PCB board, so it is necessary to strengthen the heat conduction of the center part of the PCB board.

4. During the operation, it is not allowed to open the door of the solder paste rewarmer.

5. At the end of the operation, you need to clean and maintain the solder paste rewarmer to ensure the machine's

Long-term performance.