Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Induction01:16

Induction

5.5K
An emf is induced when the magnetic field in a coil is changed by pushing a bar magnet into or out of the coil. emfs of opposite signs are produced by motion in opposite directions, and the directions of emfs are also reversed by reversing poles. The same results are produced if the coil is moved rather than the magnet—it is the relative motion that is important. The faster the motion, the greater the emf. Additionally, there is no emf when the magnet is stationary relative to the coil.
A...
5.5K
Inductors01:20

Inductors

6.0K
An inductor, also known as a choke, is a circuit component created to have a specific inductance. Inductors are among the crucial circuit components used in modern electronics, along with resistors and capacitors. They serve as a barrier against changes in a circuit's current. An inductor tends to suppress current changes in an alternating-current circuit that are faster than desired. In a direct-current circuit, an inductor aids in preserving a constant current despite changes in the...
6.0K
Induced Electric Fields: Applications01:27

Induced Electric Fields: Applications

2.5K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
2.5K
Induced Electric Fields01:23

Induced Electric Fields

4.5K
The fact that emfs are induced in circuits implies that work is being done on the conduction electrons in the wires. What can possibly be the source of this work? We know that it’s neither a battery nor a magnetic field, as a battery does not have to be present in a circuit where current is induced, and magnetic fields never do any work on moving charges. The source of the work is in fact an electric field that is induced in the wires. For example, if a stationary conductor is placed in a...
4.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Edge-focused wire arc additive manufacturing: Method development with ANN-based stress-strain and mass-efficiency.

PloS one·2026
Same author

Applying a new mold temperature control strategy to improve the tensile strength of thin wall products in injection molding processes.

PloS one·2025
Same author

Optimizing Tensile Strength of Low-Carbon Steel Shafts with Stacked Ring Substrates in WAAM Using Taguchi and Random Forest Regression.

Materials (Basel, Switzerland)·2025
Same author

Study on Cooling Layer and Thin Insert Thickness Between Coolant and Cavity for Injection Mold with Bridge-Type Composite Product.

Polymers·2025
Same author

A Study on Thin Cooling Layers Between the Cooling Channel and Cavity in the Injection Molding Process for Mold Temperature Control to Enhance Weld Line Flexural Strength in Plastic Products.

Polymers·2025
Same author

Study on the Fatigue Bending Strength of Cylindrical Components Manufactured by External WAAM.

Materials (Basel, Switzerland)·2025

Related Experiment Video

Updated: Jan 11, 2026

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
08:52

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Published on: April 30, 2018

8.6K

Internal Induction Heating for Local Heating in Injection Molding.

Thanh Trung Do1, Huynh Duc Thuan2,3,4, Tran Minh The Uyen1

  • 1Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, Vietnam.

Polymers
|November 13, 2025
PubMed
Summary

Internal Induction Heating (In-IH) offers rapid, energy-efficient mold temperature control for thin-walled polypropylene injection molding. This advanced method enhances melt flow and product quality by precisely managing localized heating.

Keywords:
injection moldinginternal induction heating (In-IH)melt flow lengthmold temperature controlpolypropylene (PP)thin-wall molding

More Related Videos

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
05:32

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars

Published on: August 4, 2018

13.0K
Experimental Procedure for Warm Spinning of Cast Aluminum Components
07:36

Experimental Procedure for Warm Spinning of Cast Aluminum Components

Published on: February 1, 2017

9.9K

Related Experiment Videos

Last Updated: Jan 11, 2026

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
08:52

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Published on: April 30, 2018

8.6K
A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
05:32

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars

Published on: August 4, 2018

13.0K
Experimental Procedure for Warm Spinning of Cast Aluminum Components
07:36

Experimental Procedure for Warm Spinning of Cast Aluminum Components

Published on: February 1, 2017

9.9K

Area of Science:

  • Materials Science
  • Manufacturing Engineering
  • Polymer Processing

Background:

  • Conventional injection molding temperature control is slow and energy-intensive.
  • Thin-walled parts require precise, localized mold heating for optimal quality.
  • Existing methods struggle with rapid heating and energy efficiency.

Purpose of the Study:

  • Introduce and evaluate Internal Induction Heating (In-IH) for thin-walled polypropylene injection molding.
  • Investigate the impact of insert geometry and heating parameters on In-IH performance.
  • Assess the enhancement in melt flow and product quality using In-IH.

Main Methods:

  • Developed an In-IH system with an integrated induction circuit.
  • Conducted numerical simulations and experimental analyses of heating characteristics.
  • Performed mold-filling experiments using various In-IH parameters.
  • Analyzed the relationship between insert thickness, width, and temperature distribution.

Main Results:

  • Thinner inserts (0.5 mm) achieved significantly higher temperatures (~550 °C) than thicker ones (2.0 mm, ~80 °C).
  • Narrower inserts (25 mm) concentrated heat effectively, while wider inserts improved uniformity.
  • In-IH significantly improved polypropylene flowability, increasing flow length by up to 95% at 180 °C.
  • Simulation and experimental results showed good agreement (max 10% deviation).

Conclusions:

  • In-IH provides rapid, energy-efficient, and precise local mold temperature control.
  • The In-IH system enhances melt flow and improves product quality in thin-walled PP injection molding.
  • Optimizing insert geometry and heating parameters is crucial for effective In-IH application.