Diameter of water channel is 5-6mm; faucet uses 1/8 or 3/8 teeth (die side), and the other side uses 3/4 inch thread (old-fashioned connection method); pipe fitting material uses stainless steel pipe. Now we have changed it to one in and one out. It is better to make shunt in mold, and interface is connected with energy diameter of DN25, so that heat loss is less, operation is convenient, and interface is convenient.

 

Distance between water channel side and product surface is generally 5-6mm; if it is larger, it will affect heating time of mold, and if it is smaller, it will affect strength of mold. Parallel product surface of water channel needs to be evenly arranged (center of original material is 15mm equidistantly distributed). Thermocouple should be designed in the middle of two water channels, depth should be more than 50mm, maximum should not exceed 100mm. It depends on mold structure and flexible control.
Each set of mold PT100 is matched with one, to maintain its accuracy, it must be inserted into mold cavity mold core and fixed. Use lead wires to connect to outside of mold, then connect to temperature controller socket.

Water channel joints of mold must be designed at upper and lower or rear ends of mold; operation side (side of person) is not allowed to have inlet and outlet of water channel or arrangement of water pipes, so as to avoid pipe rupture and scalding production personnel. Remember!

Inlet and outlet of mold are designed with a splitter plate, hydrothermal mold temperature control machine system has only one inlet and one outlet to reduce excessive water pipe connections, reduce unnecessary heat loss, and achieve purpose of energy saving. Outer surface of bellows is wrapped with thermal insulation tape to play the role of thermal insulation.

Construction holes (unwanted holes) of mold should be blocked with plugs to ensure no air leakage and water leakage. Method is to use copper plugs first, then seal them with tapered throat teeth and high temperature resistant glue; arrangement of cooling water channels of high-gloss mold is compared. Pay attention to (water channel of hydrothermal mold is shared), a good water channel arrangement can not only greatly improve injection molding efficiency, but also play an important role in improving product quality. Water channels of highlight mold must not only be uniform but must also be adequate (in sufficient quantity).
In this way, temperature of mold is very fast; at the same time, extended water pipe is used to directly carry water out of mold core without using sealing ring, which can prevent mold from working at high temperature for a long time, resulting in aging of sealing ring, and can also reduce maintenance cost of many molds. It is worth mentioning that water pipe of high-gloss mold must be made of high temperature resistant material (250℃) corrugated pipe.
High-pressure 1.6Mpa bellows to prevent bursting of water pipes under high temperature and high pressure. For round products, use circular water transport; for long products, use parallel water channels. For products with a large height difference, water well form is used; for special-shaped products, a three-dimensional water transport method consistent with appearance of product is used.

 

Four sides of fixed mold core or movable mold core should be hollowed out; there should be a certain gap between mold frame and core (depending on thermal expansion coefficient of mold material, 1mm on one side). Prevent expansion of mold frame to reduce contact surface between mold core and mold frame, so as to minimize thermal energy loss; locking of mold core and mold frame adopts an oblique wedge or other similar methods, front end adopts dust resin or other materials (such as asbestos board) with obvious heat insulation effect.

Detailed structure of mold frame and insert core, cooling water of mold frame is very important. In order to prevent heat energy in mold core from being transmitted to mold frame, a circle of water should be arranged up and down near guide post.

Moving part of guide sleeve should be made of graphite material as much as possible or front end of guide post should be avoided, and length of matching part should only be 25mm.