Q:A Kelon old air conditioning, fluorine mouth, there is no needle, how to measure the pressure and fluorine ah? No thimble tube screw, no response, how should I test? Thank you

Stop valve, valve, loosen a little bit on the deal!

Q:Hot runner system is not exactly the valve matrix how to do?

3: check aprons are damaged. 4: open the hot runner, check whether the valve needle and valve sleeve between the seepage. Wait。 It's best to see the model,

Q:Napping needle valve type hot runner gate part of what is the reason? Do you have any expert answers?

If the material selection is not appropriate, long time production, will cause wear of the valve needle, some suppliers use inferior needle valve, or valve needle without cutting, non professional technology, can easily lead to the valve needle top is not smooth, resulting in gate galling phenomenon, the effect is not good, the final effect the quality of products. I hope I can help you

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

I'll give you a few suggestions, 1 valve needle valve needle end temperature, the temperature is too high will the glue burned 2, valve needle back and speed, when the back end of the needle valve will air the 3 mold thickness, temperature effect of gate region will be great, especially cold shear heat hot nozzle at the front end of the 4, this is very important, 5 hot tip white material cannot do without these problems point, hope this is helpful to you.

Q:How to use the needle type oil cup

Directly in the cup Riga with oil, let it drop on the line

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: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:Hot runner mold valve needle sealing is lax, what are the reasons?

The main reason is that the cylinder pressure is not enough. Two the injection quantity over three, low temperature hot nozzle, four valve seal leakage, valve needle valve needle sleeve wear Arno, wear after lead carbide glue leakage valve needle movement is not in place, the size of the mold is not precision.

Q:What is the hot runner valve needle?

There are DME (USA), INCOE (USA), MOLD-MASTER (Canada - hot runner), HUSKY (Canada) and so on

Q:After the needle valve sealing, how to solve the cold material?

The remaining part is the fourth stage (also called the end section). For the plastic parts with simple structure and low appearance quality, the three stage spraying process can be adopted.