How to use the heat pipe water injection sealing machine

A heat pipe is a heat transfer component that makes full use of the principles of heat conduction and the rapid heat transfer properties of phase change media. It rapidly transfers the heat of a heat-generating object to the outside of the heat source through the heat pipe, and its thermal conductivity exceeds that of any known metal. Heat pipe technology was widely used in aerospace, military and other industries in the past. Since it was introduced into the radiator manufacturing industry, it has changed people's traditional design ideas of radiators and broken away from the single heat dissipation mode that solely relies on high-airflow motors to achieve better heat dissipation effects. The adoption of heat pipe technology enables radiators to achieve satisfactory cooling effects even with low-speed and low-airflow motors, which effectively solves the noise problem that plagues air cooling and opens up a new era for the heat dissipation industry. A heat pipe is a heat transfer component that realizes heat transfer through the phase change of its internal working fluid, and it has several basic characteristics, including thermal conductivity, isothermality, variability, reversibility, on-off performance, constant temperature performance and environmental adaptability.

At present, in the heat pipe processing process, the integral performance of heat pipe forming operations is insufficient and the continuity is poor. The manual participation in the loading and unloading process is high, which affects the processing and production efficiency. In addition, the processing completeness and precision of heat pipes are poor, and there are certain operational limitations. For this reason, we have produced an integrated continuous water injection and sealing machine for heat pipes.

To achieve the above objectives, the technical scheme adopted by this machine is as follows: an integrated continuous water injection and sealing system for heat pipes, which includes a feeding module, a shaping module, a rotating module, a water injection module and a sealing module. The feeding module feeds heat pipes into the shaping station one by one, and the output end of the feeding module is connected with the shaping module. After the heat pipes enter the shaping station one by one, the shaping module shapes one end of the heat pipes.

The shaping module is cooperatively connected with the rotating module, which rotates the heat pipe workpieces to an upright state. The rotating module is connected with the water injection module, which injects water into the heat pipes. The water injection module is integrated with the sealing module, which seals the heat pipes after water injection. The shaping module shapes one end of the heat pipe by pressing the pipe orifice of the heat pipe to make the pipe orifice more regular and match the water injection port of the water injection station. The rotating module includes a rotating motor, which rotates the heat pipes on the clamps from a horizontal state to a vertical state. The rotating module also includes a slide rail, which transports the heat pipes from the rotating module to the water injection module.

The water injection module includes a main water inlet, a rotating base, a driving motor and a number of branch water pipes, forming multiple water injection stations. All the branch water pipes are connected with the main water inlet and arranged on the peripheral side of the rotating base at equal intervals, and the driving motor is connected with the rotating base. The sealing module includes a cylinder and a clamping pliers, the output end of the cylinder is connected with the clamping pliers, and the clamping pliers clamps and seals the pipe orifice of the heat pipe after water injection.

The water injection and sealing method of the integrated continuous water injection and sealing system for heat pipes includes the following steps:

Step 1: Heat pipe workpieces enter the feeding module, and the feeding module feeds the heat pipe workpieces;

Step 2: The shaping module clamps the heat pipes from the feeding module and presses and shapes the pipe orifices of the heat pipes to make the pipe orifices more regular and match the water injection ports of the water injection stations;

Step 3: After shaping, the heat pipe workpieces are rotated to an upright state by the rotating module;

Step 4: The heat pipes enter the water injection module, and water is injected into the heat pipes by using multiple water injection stations;

Step 5: After water injection, the sealing module is used to clamp and seal the water injection pipe orifice end of the heat pipes;

Step 6: Complete the integrated continuous water injection and sealing operation of the heat pipes.

In Step 4, multiple water injection stations form continuous water injection for heat pipe processing.

The machine has the following beneficial effects:

1. The integrated continuous water injection and sealing system of this machine processes heat pipes in an integrated manner through the feeding, shaping, rotating, water injection and sealing links respectively. Compared with the existing technology where the links are separated and manual loading and unloading are required, this scheme features strong continuity of processing operations, high precision and improved efficiency.
2. The integrated continuous water injection and sealing method for heat pipes is simple to operate and has a high degree of automation, which simultaneously improves its popularization value.

• Written by

  CoolingThermal Engineering Team

  CoolingThermal is an automation equipment manufacturer based in Kunshan, China, specializing in heat pipe and vapor chamber production equipment since 2017. Our engineering team designs, builds, and commissions complete production lines covering forming, degassing, welding, testing, and assembly processes. The technical content on this blog is written by the same team that develops the equipment — based on real production experience, not secondary research.