Technically, it's called temperature control with heat pipe satellite structural plate technology.
The heat pipe technology was first developed to solve the problem of temperature difference on the surface of the satellite, and now it has been used for mold cooling, injection machine cooling and heat transfer of extrusion screw in injection technology. If it is applied to hot runner system, it will have a very broad prospect. Foreign countries have applied heat pipe technology to the heating of hot runner plates and hot nozzles, and standardized and serialized the material combination and size specifications. China should speed up the development of heat pipe, an excellent heat conducting element, and apply it to hot runner molds, so as to get rid of the situation that the heating element of hot runner in China mainly depends on imports at present.
in the early 199s, the structure of heat pipe and hot runner plate designed by our country kept the temperature of the whole runner plate consistent, and it has been successfully used in hot runner dies. The heat pipe with special shape can also be used as a heating probe to control the melt temperature of the point gate [1]. In 1995, scholars such as Lei Yucheng and Zhao Xiaojun of Jiangsu University of Science and Technology developed a new type of heat pipe hot runner technology with central heating, and obtained a national patent. It is a new type of hot runner which uses heat pipe heat transfer technology to heat the runner. It has the advantages of good isothermal performance, single point temperature control and heating source outside the mold. The hot runner series has three categories: single-cavity hot runner type, multi-cavity shunt type and hot nozzle type.
a temperature-controlled heat pipe radiator comprises a heat pipe, a thermoelectric cooling fin, a temperature error detection circuit, an integrator and a current source, wherein the condensation end of the heat pipe is fixed at the cold end of the thermoelectric cooling fin, and the temperature error detection circuit checks and reads the temperature error signal on the thermoelectric cooling fin, and then controls the current output by the current source to the thermoelectric cooling fin through the output signal of the integrator.
there are many papers about searching for temperature control heat pipes.