The first commercially available synthetic material, Celluloid (cellulose nitrate), was invented in 1866 by John Wesley Hyatt as a replacement for ivory for use in billiard balls. Since that time, scientists have continued to develop new plastics to provide consistent material alternatives for durable goods. […]
This method held a pre-eminent position in glassforming ever since its introduction in the middle of the first century B.C. until the late nineteenth century and is still widely used nowadays as a glassforming technique. […]
Glassblowing is a glass forming technique which was invented by the Phoenicians at approximately 50 B.C. somewhere along the Syro-Palestinian coast. The earliest evidence of glassblowing comes from a collection of waste from a glass workshop, including fragments of glass tubes, glass rods and tiny blown bottles, which was dumped in a mikvah, a ritual [...]
The transformation of raw materials into glass takes place around 2400°F (1315°C); the glass emits enough heat to appear almost white hot. The glass is then left to “fine out” (allowing the bubbles to rise out of the mass), and then the working temperature is reduced in the furnace to around 2000°F (1100°C). [...]
Glassblowing is a glassforming technique that involves inflating the molten glass into a bubble, or parison, with the aid of the blowpipe, or blow tube. A person who blows glass is called a glassblower, glassmith, or gaffer. […]
According to first-rate mold company’s president , Steven, consumer products are all about shelf appeal and function, and moldmakers must respond to this demand with creativity and innovation in order to remain competitive. […]
Due to the intensive machining practices that must be performed on mold bases, if machining time and costs can be reduced, significant savings can be realized. […]
An integrated approach made it simpler, more cost-effective and time-efficient for First-rate mold company. Having one supplier coordinate the mold base and hot half freed up a lot of time for Sullivan to focus on the cavities and cores of the mold. The designs of the hot half were formatted and attached to the mold [...]
Designing a product for high production tooling involves considerations that must be closely evaluated: gating location, part ejection, wall thickness, material flow characteristics, cycle time, hot runner feasibility and assembly at high rates. […]
Managing heat and delivering resin at a consistent temperature is the role of the nozzle. There are several features that one should consider before making a nozzle choice. It is important to maintain consistent heat due to the temperature processing window unique to today’s highly engineered resins. Engineered resins have an ideal target temperature that [...]