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The exhaust groove generally does not have to be filled with the possibility of an injection mold to escape through the air through the mold plates and ejectors. The bottle cap or closed side injection part represents a request for catharsis. About the injection of inrushing modeling materials, formed the core of the ring city and fashionable.

Is it possible to escape by air; It is the highest point of compression, which is unsightly and causes burn marks and partial paralysis. The tuyere is the fig of life. The 39 was additionally fitted with an exhaust pin.

Subsequent markings can be patterned. Most often can't peel off the core of the mold, because they are retained by the suction. In this case, the core must be equipped with an exhaust mushroom valve, which can also be used as an ejector (Fig. 40).

Exhaust Mushrooms can take on all base round moldings12 latching devices for single-cavity molds, part of which is made up of ** insulating spruebushing section automatically degated by spring action (Fig. 15).The tunnel door is also cut off in part by the contestants in the injection molding (and 21).

This die extrusion runs automatically. Targeted doors can be degated in almost all areas in a three-plate mould and mould can be operated fully automatically. But even partially suitable tunnel pouring can be automatically degated in shaping a double plate formwork.

Figure 41 illustrates the degating process of mold slide mountsThe runner (a) accepts plastic material directly from the insulated spruebushing (b).This runner (a) is kept as small as possible.

To avoid secondary surgery, the runner is partially cut off. The benefits of this shearing process are as follows: Injection molding unit back prologue spruebushing (2) in the mold opening cutting line (1).

The spruebushing (b) pushes the outside of the spring (b) and takes it from running (a).At the same time, the cutting casing (c) is moved to the right side of the strong spring pressure (d) and the isolation part of the runner (a).The ejector rod (J) and runner (1) ejected from the opening mould parts are separated by the Sprue ejection (K).

It is recommended to increase the diameter of the spruebushing (b) in position (v) approxmillimeters protect the cutting edge of the casing. When moldcloses, push back pins (g) to return the shot (j) containing the ejector rod (six) with spruepullerpin(k) to the starting position.