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Latest Post by Krish ChariDec 7, 20226:39 pmDecember 7, 2022

Support POlymer School @ Patreon

Thanks for visiting Polymer School. This portal is a new concept in the field of technical education by providing short videos on topics which new students in technical schools or new employee in plastics industry […]

Polymers by Krish ChariDec 19, 202210:11 pmDecember 30, 2022

IV Explained – Part 2

This blog is a continuation of the IV Explained – Part 1 blog which I recently did. This blog explains the properties and practical use of IV and measurements during processing.

Polymers by Krish ChariDec 6, 20229:15 pmDecember 6, 2022

IV Explained – Part 1

In this video blog, you will learn the theory of IV (Intrinsic Viscosity). We take you through why IV is used, and how it is calculated and basics of measurements.

Jigs & Fixtures by Krish ChariSep 21, 202111:36 pmSeptember 21, 2021

Concepting a milling fixture

This blog is a continuation of the drill jig video blog I recently did. Here we take you through concepting a milling slot on the same workpiece/part and explaining step by step.

Jigs & Fixtures by Krish ChariSep 1, 20217:00 pmSeptember 1, 2021

Concepting a Drill Jig

We take you through an example of concepting a drill jig. How to locate, orient and clamp the workpiece, and finer details of design. This blog is useful for any designer who wants to design […]

Mold Design by Krish ChariAug 21, 202110:44 pmAugust 21, 2021

Electrification of Mold Actions-Part 1

This blog introduces you to servo control for the mold actions. We cover why servo control is better than Pneumatic or Hydraulic systems, and advantages. Second part of this blog will cover the selection and […]

Mold Design by Krish ChariAug 17, 20218:18 pmAugust 21, 2021

Exaflow- Gate Inserts

Manufacturing a sub gate or a tunnel gate or a cashew gate inserts are very complicated and it takes lot of time and effort in manufacturing. Exaflow gate inserts are a simple solution to this […]

Mold Design by Krish ChariJul 25, 20216:06 pmJuly 25, 2021

Core & Cavity

Core and cavity are the important elements of a mold. In this blog, we take you over the basics of core and cavity design and factors to consider during design.

Injection Molding by Krish ChariJul 18, 202111:47 amJuly 18, 2021

RJG’s Decoupled Molding – Explained

In this blog, we explain RJG’s Decoupled molding principles, and advantages on the process consistency. We take you from basics of decoupled molding for new process engineers.

Polymers by Krish ChariJul 11, 202110:34 pmJuly 11, 2021

CrystAllinity in Polymers

Crystallinity in a semi-crystalline polymers is important for achieving material properties. This blog takes you through the basics and factors affecting the crystallinity in polymers.

Polymers by Krish ChariJul 8, 202110:05 amJuly 8, 2021

Viscosity Models

Viscosity models are used in day to day calculation in polymer industry. This blog explains viscosity basics, different models and models used in Moldflow and Moldex3D simulation software.

Hotrunners by Krish ChariJul 4, 20217:29 amJuly 4, 2021

Hotrunner Balance Study – Factors

This blog is continuation of the earlier blog on “Hotrunner Balance Study – Test Methods”. Here we explain all the factors that affect the balance with some examples which will helpful for troubleshooting the issues […]

Hotrunners by Krish ChariJun 27, 202111:15 pmJuly 4, 2021

Hotrunner Balance Study – Test Method

In this blog, we walk you through the steps of doing a balance test on a hotrunner mold. This blog covers the basic methods, steps for conducting the balance test.

Mold Design by Krish ChariJun 26, 20219:57 pmJune 26, 2021

Feed System – Gate Types

This blog is a continuation of the earlier blog on Gate-Basic. Here we explore all the gate types individually and where to use them & why.

Mold Design by Krish ChariJun 24, 20219:22 pmJune 24, 2021

FEED SYSTEM – Gate Basic

This blog takes you through the basics of gate design, gate placement and function of a gate. There is a second blog which will follow on gate types to this intro.

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