Standard Side Locks Used to create lock-up location, which helps overcome injection melt pressures. Side locks provide for a small degree of early engagement protection depending on the particular profile. […]
Straight Locks are The most widely used lock in the industry. Designs are virtually identical between all manufacturers with the exception of material, coatings, grease grooves and graphite plugs. […]
Tapered Round Locks Are usually used as locators only. As with tapered bar locks, they do not provide early alignment or protection of cores, […]
Tapered Bar Locks are primarily used to prevent core shift during injection melt. All tapered bar locks typically use a non-locking taper greater than 7 degrees, with most locks using a 10-degree taper per side. […]
There is another option—an electrically actuated valve gate system. This system combines the strengths of both pneumatic and hydraulic hot runner technologies. While both traditional systems are highly effective technologies in their own right, for some customers an electric system represents the best of both worlds. […]
Hydraulic actuated valve gate systems make up less than 20 percent of the market. While they have a lower market presence in comparison to pneumatic systems, […]
Pneumatic actuated valve stem technology currently makes up over 80 percent of the market. It is the most widely used technology in the medical, technical and closures markets.There are several reasons why pneumatic systems are so widely applied. The technology uses a medium that is readily available in molding facilities—compressed air—to move the valve system. [...]
The most significant breakthrough in flow simulation technology was the advent of true 3-D solid element analysis in 1999. […]
The goals of flow analysis can range from basic knit-line location prediction to measuring the exact displacement due to anisotropic conditions on a low-tolerance part. When performed early in the design process, users of the technology save thousands of dollars in startup costs, and thousands more by improving part quality, eliminating downtime and reducing cycle [...]
Some observations for improving scan quality through part mounting and orientation are given below: […]