Do you know what precautions should be taken in the installation of hot runner?

Hot runner technology has become an important field of plastic injection molding process with its unique technical advantages such as cost saving and molding cycle shortening.
Advantages of hot runner technology compared with conventional cold runner:
Save raw materials and reduce costs;
Shorten the forming cycle and improve the machine efficiency;
Improve the surface quality and mechanical properties of products;
Point gate can be used without three-plate mold;
It can economically form a single product with a side gate;
Improve the degree of automation;
Needle valve gate can be used to control gate freezing;
The quality of injection parts of multi-cavity mold is consistent;
Improve the surface beauty of injection molding products.
The installation of the hot runner is directly related to the quality of the product. The following are the precautions for the installation of the hot runner:
Place the mold, level the upper mold, and clean all hole positions and templates with an air gun.
Check the size of each hole position, focus on the depth, and remove the burr on the template. At the same time, check whether the screw hole of the lock diverter plate, the center pin and the anti-rotation pin hole have been processed. The master who made the hot runner mold for the first time in this place often missed to do it.
Apply red lead to the two parts of the hot nozzle sealing position and the upper stage position that match the mold.
Try to assemble the hot nozzle, and then remove it to check whether the rubber sealing position rubs the red lead and whether the step position touches the mold. If not, stop the installation, check the cause of the error and adjust it to ensure the tight fit without material leakage. Be careful not to bruise the tip of the mouth during this process.
Install all the hot nozzles, and install the center pad, center pin, and anti-rotation pin at the same time, and sweep the red lead on its surface.
Check the nozzle plane and center pad height, and the error shall be controlled within 0.05mm.
Try to install the diverter plate. Pay attention not to omit the hot nozzle seal ring when installing the diverter plate formally.
Check the matching between the splitter plate and the hot nozzle to ensure that they all touch the red lead and there is no glue leakage.
Sort out the hot nozzle wiring, make it neat and beautiful, and number each group of lines in order, and connect the lines to the plug.
Formally install the splitter plate, lock the fixing screws of the splitter plate (be sure to lock the balance and keep the height of the four corners of the splitter plate consistent), control the splitter plate meson to be 0.10-0.15mm higher than the plane of the surrounding mold frame, and then sweep the red lead on the splitter plate meson.
Trial install the code template, check whether the plane meets the red lead of meson, and ensure that the template presses the meson of the splitter plate.
Lock the mold, erect the mold, and check whether the matching between the gate and the nozzle tip meets the requirements from the parting surface. The nozzle tip shall be 0.1-0.2mm lower than the gate surface, and the nozzle tip shall not be eccentric. Carefully check each group of circuits with a multimeter to ensure that there is no short circuit, open circuit, leakage, etc., and each group of circuits corresponds correctly to ensure that all circuits are normal.
Connect the temperature controller for trial heating. The first heating should be within 100 ℃, and keep it for 10 minutes to preheat and dehumidify to protect the heater; Then, heat it to the required temperature, and then arrange the lifting mold test if it is normal.