Hot Runner Technology for Bio-Resins
The polylactic acid trend, material benefits and challenges to injection molding and injection mold design. Booming populations and the growth of the global economy are creating increased demand for p...
Author Archives: Mu Ju
Why are plastics used in durable goods?
Manufactured items defined with a useful life of more than three years, including automobiles, appliances, computers, etc., are called durable goods. Manufacturers of durable goods choose plastics for...
Are toxic chemicals included in the plastic products we buy?
The simple answer is ‘not intentionally’. The more thorough answer is that toxicity is a complicated subject. Salt, and even water, at too high an intake are toxic to humans.&n...
Are toxic compounds used to make plastics and if so, would not the plastics be toxic?
Some of the raw materials used to make plastics are rather non-reactive at room temperature and others are highly reactive. For example, one reactive compound, ethylene, is used to make polyethy...
What about CFCs used in plastics?
Chlorofluorocarbons (CFC’s) were used in the past to make foamed plastic. In response to concerns about the ozone layer, polystyrene manufacturers voluntarily phased out the use of C...
Why do we need different kinds of plastics?
Copper, silver and aluminum are all metals, yet each has unique properties. We do not make a car out of silver or a beer can out of copper because the properties of these metals are not the best choic...
Why are plastics used in packaging?
Packaging serves many purposes. The public may think the package lasts only a few minutes during the use of the product, but the real demands are much more extensive. Packaging must delive...
How are plastics made?
Most commercial plastics encountered by consumers consist of building blocks of carbon. Those building blocks are typically derived from petroleum or natural gas, but can be derived from coal or...
Long-Fiber Pellets Come Fully Loaded
The Complet line of long-fiber reinforced thermoplastic (LFRT) pellets from PlastiComp LLC, Winona, Minn., now is available with color, impact modifier, and/or other additives. This "single-pelle...
Yuan climbs most since China ended dollar link
The Chinese yuan climbed 219 basis points to break the 7.32 and 7.31 mark Thursday, with the central parity rate at record 7.3079 to the US dollar, according to the Chinese Foreign Exchange Trading Sy...
Embedded Automation Computer speeds system development.
Based on 1.4 GHz Intel Pentium/1.0 GHz Celeron processor, Model UNO-2176 supports pre-configured Windows XP Embedded OS and Windows CE 5.0 images with onboard device drivers. Unit includes 512 KB batt...
Staged Bending Tooling completes multiple bends in one setup.
Designed to minimize setup time for multi-stage bends on press brakes, European-style Staged Bending Tooling allows one press brake operator to carry out complex series of bends in one machine setup. ...
High-speed plastics injection
An all-electric plastics injection moulder will operate at high speed producing technical parts for an IML application in the packaging industry, during a forthcoming US event Arburg said that the eno...
These aren’t your grandparents’ wheelchairs
Forget about transportation—these chairs are built for combat. Vesco Metal Craft, a manufacturer of rugby wheelchairs, makes specialized wheelchairs from 6061 seamless aluminum tubing. This viol...
Air-Gage-Equipped, Vertical CNC Honing System
SV-1005 series machines capable of accuracy to 0.25µm for hole diameters 3-65 mm. Ideal for low-cost, high-Cpk production of hydraulic valves/bodies, small engines, fuel injectors, gears, gun ba...
Vertical CNC Honing Machine integrates air-gauging system
Providing closed-loop control of tool size, along with downloadable SPC data, SV-1005 series machines automatically control hole size to accuracies of 0.00001 in., working on size range of 0.120-2.56 ...
Pressure Bag Molding
Pressure bag molding is similar to the vacuum bag moldimg method except that air pressure, usually 30 to 50 psi, is applied to a rubber bag, or sheet that covers the laid up composite to force out ent...
Filament Winding
Filament winding consists of winding resin impregnated fibers or rovings of glass, aramid, or carbon on a rotating mandrel in predetermined patterns. The method provides the greatest control over fibe...
Reaction Injection Molding (RIM)
Reaction injection molding (RIM) is also known as liquid reaction molding or high- pressure impingement mixing. The low pressure method involves mechanical mixing often with plural component dispensin...
Continuous Lamination
Continuous Lamination makes composites in sheet form such as composite glazing, corrugated or flat construction panels, and electrical insulating materials. Reinforcement is combined with resin and sa...