About hot runner injection mold

Injection molding is a process used to create plastic parts by injecting molten plastic into a mold. The molten plastic is injected into a mold cavity, where it cools and solidifies to create the desired part. Hot runner injection molding is a variation of this process that uses a hot runner system to heat and melt the plastic prior to injection.

What is hot runner injection molding?

Hot runner injection molding is the process of injecting molten plastic into a mold using a heated runner system. This system delivers the molten plastic to the injection molding machine at the correct temperature and pressure.

What are the benefits of using a hot runner system?

There are several benefits of using a hot runner system in injection molding. One of the most obvious benefits is that it can improve the quality of the parts that are produced. Hot runner systems help to minimize the number of cold spots on the part, which can lead to defects like sink marks. They also help to ensure even heat distribution throughout the part, which can help to reduce warping.

Another benefit of using a hot runner system is that it can help to reduce cycle time. This is because the hot runner system can help to heat the part more quickly, which can reduce the amount of time that it takes to reach the proper temperature for injection. Additionally, it can help to reduce the amount of time that it takes to cool the part after it has been injection molded.

Finally, a hot runner system can help to improve the efficiency of the injection molding process. This is because it can help to minimize the amount of waste that is produced. Additionally, it can help to reduce the amount of time that it takes to produce a part.

How does a hot runner injection molding system work?

A hot runner injection molding system is a type of injection molding system that uses heated runners to transport molten plastic from the injection molding machine to the cavities of the mold. This type of system is often used for small parts or parts with complex geometries, as it can result in faster cycle times and better part quality.

GYIK

Date:2021-8-10

GYIK/ Frequently Asked Questions

As a plastic mold and injection molding company in China, we prepared answers for following most frequent asked queries for you, for more queries are always be here for you.

1. What info needed to get a correct mold quotation? How fast does it take to quote a project?

1)2D or 3D product drawing is needed for a mold quote;

2) If special requirement on mold steel, mold life, cavity quantity, hot runner requirement, part material, forecasted year quantity. Complete information will help to a most suitable cost effective, value added mold solution.

3) Normally take 2 working days to quote a new mold project seriously, and expedite quote is also available.

2. What’s the payment condition in TKB Mold?

1) New customer for mold: T/T 50% deposit, 50% against sample approval.

2) Mold modification: 100% upon sample approval.

3) Injection molding parts: 50% deposit, 50% before shipment.

4) VIP customer special terms: to be negotiated.

3. What’s the price terms/freight TKB mold will offer?

Normally TKB will offer ex-work TKB price for injection mold and plastic parts.
Free mold trial shotting samples free of charge and with freight to collect.
VIP customer special terms: to be negotiated.

4. What’s lead-time for a plastic mold and injection molding processes?

Injection mold lead-time counted from mold drawing approval and receipt of deposit to first mold trial(T1), and the difficulty of the molds determines how much time is needed, normally 20 to 60 days.

Injection molding lead-time counted from sample approval and receipt of deposit to production finish, order quantity determines how much time is needed, normally 7 to 15 days.

5. Will TKB send DMF to customer?

Yes，TKB Mold will send DFM (design for manufacturing) analysis and even mold flow analysis prior to the start of mold construction for customer review/approval.

6. Will TKB send mold design for approval?

After DMF approval, TKB will send the mould design for approval, and TKB will not start steel-cut before getting customers written approval of mold design.

7. How many plastic samples will be free provided?

TKB normally would provide 10~20 shots first mold trial shooting samples with gate(if have) free of charge according to the size of the parts, it would be freight to collect.

8. Which side provides plastic resin for injection mold trial?

TKB can provided plastic resin, if needed customer can provide the plastic resin the same.

9. How to make sure of quality before shipment?

shipment can be arranged only after TKB QC inspection PASS, or customer QC inspection PASS, or third-party inspection PASS if required. And TKB will always be there to provide full support.

10. How will TKB keep record of all mold data.

TKB will keep record of all final approved 2D, 3D mold drawing, modifications document, and send to customer for file to avoid future confusion in case engineering change is needed.