In the whole service life of the mould, choose heat correctly to shed road system to be able to make the mould makes cost and upkeep costs fall to lowest. Make cost to reduce a mould, decision-making to heating up the investment of flow path system to make it is very crucial one step. Shape in mould pressing in the technology, the does not have flow path mould dominant position that increases any forms includes: Can decrease or eliminate grinding 2 times treatment, shorten treatment cycle and improve productivity. To any specific application domains character, choose heat correctly to shed road system to be able to make the production cost of the mould and upkeep costs fall to lowest, raise a pattern thereby the economic benefits in useful life. Heat up those who shed road system to purchase in any thermal current in the system, its most crucial part is nozzle (or be " runner " ) . Nozzle can divide for 4 big kinds: Type of torpedo type, a powerful person, sector chooses form with how. Sector spray head uses as minute of molded lines the spare parts runner of 90 ° (graph 1) . This kind of nozzle can divide two kinds again. The graph shows radial 1 to distributing to show the spray head of sector of the type that heat up a needle that distributings point-blank with, have on its branch molded lines accessible the design that spray head of most advanced sector is a kind of tradition, but can get certain colophony (like PC) technical limitation. Spray head of sector of the type that heat up a needle can handle all sorts of colophony with wider range, but the design that must notice this kind of product. The design of runner of sector of a little hot pointed type can cause higher mould cost, because their regulation is used,crack acupuncture point piece, in order to allow the installation of nozzle. When considering to use spray head of sector of a kind of type that heat up a needle, install from branch molded lines most advanced simple and easy spending will be a main payoff. This kind of nozzle does not need to crack acupuncture point piece and those who offer approachable branch molded lines is most advanced, divide with convenient installation and discharge. When modular antrum needs to shut, perhaps can install on the most advanced place in a standard fictitious and most advanced. Heat up flow path to be able to be purchased in order to heat up half model form, this heats up half model to be secured directly at the model on antrum board. These device are assemble beforehand bind type component, when delivering goods already with the model antrum board is installed together. Use heat delivery of half model form shortened greatly the time that mould worker needs to place of mould general assembly; However, all heat half model is not to use same way to make, also won't provide the service level of same rate. Heat up half model to comprise by two pattern plate for the most part: Qi is in charge of bracket and nozzle splint, use at securing Qi canal and nozzle. Come from traditional sense say, nozzle is install from the back of of nozzle splint, and Ou circuitry decorates all heater and pyroelectricity to go up in this splint. For the need of maintenance, ask when discharge removes spray head heat half model ravels entirely. A kind of richer logic and the method of facilitating maintenance are: Purchase a heat from front-mounted nozzle half model. This kind of heat that designs a form half model its nozzle is the front-mounted from nozzle splint, be close to to facilitate, inside the groove that all circuitry are passed to machine in front of nozzle splint by installation (graph 2) . Graph a 2 by front-mounted nozzle and from the back the heat that installs spray head half model profile its advantage is to disassemble easily nozzle, as long as modular antrum board from heat depart is demolished on half model can, can make whole spray head and circuit exposed to the open air come out thereby, undertake in order to facilitate maintaining. Nozzle is not removing the condition that heats up half model next disassembling. In fact, if step is taken when the mould is designed and be made, the model antrum board locking arrives of the mould " B " on the face, so although the mould lies in compressor, nozzle still can disassemble quickly and change. Oneself start work component of path of thermal current of choose and buy of some moulds production chamber of commerce, next him treatment heats up half model, and install whole system, with managing capital. Below such circumstance, two kinds of plan can offer an alternative. The first plan is: Buy standard heat to spread path cell as a single item above all. The circuitry when this system is delivering goods did not join, need is in after arriving, oneself are assembled. This device must install nozzle and Qi valve first, put through next the circuitry of all component, test this system the connection case of electric field. Although this kind of practice can reflect an its cost dominant position instantly, but become the risk with also have particular so. If install incorrect or the treatment of fixed head appears mistake, cannot satisfy Qi correctly to provide the requirement of clearance of refrigeration of path of the thermal current on bracket so, may bring about hot flow path to produce leak so. In addition, the installation of component of hot flow path also can spend valuable mould handling time, need not raise labor cost more. Another kind of more absorbing solution is: Buy the system of hot flow path that cover what unit changes or has assembled beforehand. Good with be being assembled completely position delivers goods, secure the heat that machines by die manufacturer completely namely on half pattern plate. Nozzle already screwed with bolt beforehand secure Qi canal to go up, eliminated any potential leak risks consequently, even if is cooling clearance not quite correct. The circuitry of this system already ended in the installation before shipment and the course checks. As to the circumstance of system of runner of type of a powerful person, also be a course beforehand check and detect. This to mould worker, can reduce the time of installation greatly, eliminate needless risk. The design that is not all hot flow path can offer best mould to written guarantee compose is mixed have the performance that defends easily. The choice of a system, if do not facilitate of the mould assemble or maintain, may cause cost of higher earlier mould cost so, and can bring about a mould all one's life cannot guarantee, and the service charge that cannot expect. CNC MillingCNC Machining