Plastics of different colors are being used every day, covering a broad range of applications and scenarios, but few people know or consider, how these color hues are created. A variety of coloring systems can be used to color the plastic materials, each possessing its unique features, benefits, and weaknesses, among which masterbatches, “salt & […]
In March of 2001 the U.S. economy slid into a recession. By the time the powers that be decided to make the announcement in 2002 it was old news. Many organizations, including those in the moldmaking sector, had already taken a hard hit from the economic downturn, and were taking measures to survive long before […]
When compared to the past, the technological level of the Chinese mold industry has been greatly improved, but the proportions of high, medium and low-end molds produced by Chinese manufacturers are extremely imbalanced, which severely hampers the development of the Chinese mold industry. Over the past few years, tremendous changes have taken place in the […]
Mold adhesion, also known as sticking sprues or parts, is caused by improper contact of the nozzle tip with the sprue bushing, which does not allow sprue or part release and good filling. Usually, the diameter of the main runner needs to be big enough, so that the sprues are not completely solidified when injection […]
The terms “artistry” and “moldmaking” have some odd connections. Certainly a finished mold often looks like a work of art – and not just to engineers. There also is the artistry involved in the mold’s design when dozens of components must function with the synchronized precision of a ballet. And there is that cliche – […]
Over the past two to three years, substantial advancements have been made in injection molding CAEsoftware. What started out as a tool to give designers a general idea of how a simple plastic part will fill, can now accurately analyze packing, cooling, warpage, fiber orientation in any complex part geometry and conditions in the mold. Identifying Problems […]
There are many, many plating tips and secrets of the trade that one learns throughout the years. You may have heard some of these, but following are a few key pointers to keep in mind. They could save you a lot of time and aggravation down the road. Avoid using chrome when molding with polyvinylchloride (PVC). Chloride is […]
A Competitive Mold Maker In recent years, the Chinese mold industry has witnessed rapid growth. Along with the development of experience, introduction of cutting-edge technologies, as well as the hiring of well-trained specialists from all around the world, both the design and manufacturing of injection molds in China have been improving substantially. Nevertheless, as with any […]
The injection molding process is usually comprised of 6 steps: The clamping: An injection machine contains 3 parts – the injection mold, the clamp and the injection unit, among which, the clamping unit keeps the mold at a certain pressure, so as to ensure the consistency of the outputs. A mold is usually made up […]
Definitely, if one of the spare parts on your machine or equipment does not function properly, you will need to order a new one for a replacement. However, if your equipment is custom-made, you will have to produce or purchase a customized spare part. But, this process will take a long time, depending on how difficult the […]