A year ago, as the first images of healthcare workers being vaccinated against COVID-19 were broadcast, and well before we all began an unwanted lesson in the Greek alphabet, I would not have thought my predictions post for 2022 would mention the “C” word through anything but a retrospective view. Yet, as I write this, daily cases numbers and total hospitalizations are at new peaks. The pandemic is very much still our present, not our past, and I’ve long since given up predicting the future as far as Covid goes. That said, the virus has brought and continues to bring... Read More
Despite the many advances in injection molding technology, challenges remain in producing visually acceptable parts with high esthetic requirements, free of molded-in stress, and with high dimensional stability, as well as reliably filling thin walls with high flow lengths. In the early 2000s, several Japanese companies collaborated in developing a molding technology that could satisfy the most stringent surface-quality requirements of their demanding electronic consumer-goods clients. In 2002, Ono Sangyo Co., a leading contract injection molder with a substantial processing technology department, introduced and patented the Rapid Heat Cycle Molding (RHCM) process. In 2009, Matsui Manufacturing Co., the leading plastics... Read More
Midland Pallet Trucks have spoken out to businesses who may be trying to decide on a brand new pallet truck, advising them to make the type of wheels one of their top considerations as they narrow down the criteria. There are a great number of considerations that should be made when purchasing a new pallet truck. Capacity, size, weight, the amount of maintenance it will need and whether it needs any added accessories are all be important things to research to ensure the right truck is chosen – but what about the type of wheels the truck will require? There... Read More
Adiprene C930, a low free methylene diphenyl diisocyanate (MDI) -based cast urethane from Lanxess, has been proven as an appropriate material for being processed via injection molding. Korean company Autox developed a production process that allows the cast polyurethane grade to be injection-molded. This innovation brings a new perspective to the cast polyurethane (CPU) world as it combines the processing advantages of injection molding along with the properties of cast urethane. Autox has recently launched a new vibrating screen for the mining industry which is made from this Adiprene cast PU prepolymer by injection molding. One of the benefits in... Read More
It is impossible to mold parts without a working injection machine. This is something that molders can state with absolute clarity. Yet, there are still many companies that follow a “run-parts-until-the-machine-breaks-down” approach. The question we must ask ourselves is why? Unplanned maintenance is costly. In these instances, the discussion and development of repair plans occurs with the press sitting idle. Replacement parts need to be located, assuming they are in-house at all. If no replacement parts are available, searching for and ordering components from part vendors becomes necessary. Then, if production demands it, delivery of those parts may need to... Read More
Injection Moulding Machine Market Report and Forecast 2021-2026, gives an in-depth analysis of the Injection Moulding Machine Market, assessing the market based on its segments like machine type, product type, clamping force, sales type, end use and major regions. The report tracks the latest trends in the industry and studies their impact on the overall market. It also assesses the market dynamics, covering the key demand and price indicators, along with analyzing the market based on the SWOT and Porter’s Five Forces models. The key highlights of the report include: Market Overview (2016-2026) Forecast Market Size (2020): USD 16 billion... Read More
German firm RUD (Aalen) has redesigned its Tool Mover with improved ergonomics in mind. Used for unmounting heavy tools from injection molding machines or dismantling machine parts weighing several tons that previously required a crane and at least two operators, the Tool Mover simplifies these tasks and its new lower working height means operators can labor in a more natural posture. RUD is represented in the U.S. by Caldwell Inc. (Rockford, Ill.). RUD’s Tool Mover is available in multiple configurations, with the smallest Slim version able to handle weights of up to 10 tonnes on its 800-mm table surface. The... Read More
There are three distinct processing phases in injection molding. The three phases in the molding process are as follows: Filling phase Packing phase Cooling phase 1. Filling phase During the filling phase, plastic is pushed into the cavity until the cavity is just filled. As plastic flows into the cavity, the plastic in contact with the mold wall quickly freezes. This creates a frozen layer of plastic between the mold and the molten plastic. At the interface between the static frozen layer and the flowing melt, the polymer molecules are stretched out in the direction of flow. This alignment and... Read More
Cycle time is the total time required to complete all the stages of the injection molding cycle. The cycle time is made up of the following stages: Fill time. The time required to fill the mold with polymer. The injection molding machine controls the velocity (flow rate) of the molten polymer entering the mold during this stage of the cycle. Packing time The stage of the injection molding cycle when pressure is applied to the polymer melt to compress the polymer and to force more material into the mold. This compensates for the shrinkage that occurs as the polymer cools... Read More
A staple of the industrial sector since its inception in the early 1870s, injection molding is used for producing a wide array of products ranging from bottle caps to automotive parts. With the ability to produce large quantities of a given product at low prices, it’s no wonder that the process has been around for so long. So how, exactly, does injection molding work? There are three basic steps that every injection molding process must go through. The first is the creation of a mold. Today, these molds are often drawn up as 3D computer-generated models that are designed to... Read More
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