Q:How can I see a needle valve in plastic products?

Do good needle type mold, the glue inlet port is generally lower than the product surface, in front with no obvious signs of the case can be used to identify the surface color, into the plastic needle valve mouth is used with cooling gel, ambient temperature will be higher than the nearby, slightly shiny.The needle tip of the valve will also have obvious marks, because the high temperature and the entrance of the glue hole will always be more or less bright or rough than that of the die steel.

Q:The hero can help solve the valve pin, hot runner, into the gate, white spots problem?

Oh, that I had many at home, should I be treated up to the problem of the people, the beginning of our company is BYD because it helped them deal with YUDO hot runner, and later to do our own, sometimes there will be such a problem, although every time but no fix a method to solve this problem forever,

Q:Injection mould hot runner system needle taking needle tool

The needle system of each hot runner company are different, the heating needs of general, pull out, because the structure is not the same, the use of tools are not the same, some companies do their own fixtures. Is the best request to the hot runner company. Let the staff training

Q:Is the injection pressure tight after the valve pin closes?

In the process of injection molding, solution and shrinkage because of cooling, but because the screw to move slowly forward, so that the material in the tube to melt into the cavity, to supplement the needs of shrinkage, called pressure. It means to prevent product shrinkage, with pressure if production is stable. The pressure can also adjust the product size, without weld line

Q:Needle valve hot runner outlet hole shrink what is the reason?

Because the valve needle is into the gate, the hot runner temperature here is the highest, so the plastic temperature near here is the highest.

Q:Hot runner valve needle broken inside how to do?

This has happened to me, too. There's no other way but to take the panel apart and take the splitter plate and the valve pin together with the needle sleeve.

Q:Mold valve needle and valve relationship, the gas will be sealed small plastic valve will have a small possibility?

4 nozzle temperature is too low;Maybe so. What's the problem? Let's talk about it

Q:Working principle of needle valve type oiling cup

I know this, I want to make a joint in the oil filler, can solve the leakage problem of inclined tubular Jiagen, but no drawings, do not know the specific circumstances not joint design

Q:Needle valve hot runner Road, needle valve does not move, what are the reasons?

This has happened to me, too. There's no other way but to take the panel apart and take the splitter plate and the valve pin together with the needle sleeve.

Q:How does a sequential needle valve work in a hot runner?

Controlled by Timer, control and solenoid valve.General car door panels, car bumpers and so on must be used timing needle valve, of course, not demanding.