It does not always follow that the cleanest factory is the most efficient, nor that the dirtiest one is the least. It is, however, quite clear that good housekeeping aids efficiency and that bad housekeeping can be detrimental to profitability,…
There are many costs involved in the startup and operation of a molding facility, including Initial capital requirements, Processing costs, Raw materials, And many others, some obvious and some hidden. One most common cause of failure of any startup company…
It is safe to state that any given mold will require a certain amount of repair for damage occurring during the use or storage of that mold. The more it is used, or the longer it is stored, the more…
To eliminate the secondary operation of degating, injection molds in which the parts are automatically degated from the runner system by the opening motion of the mold were already developed. Principle of self-degating Self-degating requires two parting lines in the…
The organizing for component handling starts in the design and manufacturing programming stage. Products to become deemed in component handling are listed below: Kind of tool: two plate,three plate, or hot runner system Component dimension, weight, and complication mass of…
The Sprue The sprue is a round, tapered hole which leads the plastics material from the nozzle of the heating cylinder of the injection molding machine to the distributing runners in the mold. A typical sprue is shown in Fig.…
Some mould makers prefer to perform certain rough machining operations on the mould block before the mould undergoes normalizing heating, while others prefer to carry out the latter process immediately after receipt of the steel. Where the former method is…
Of all the casting processes, i.e. casting is by far the best suited to the high production of quality parts. There are some restrictions as to the metals which can be supplied as die castings and as to the complexity…
Castings Materials:Any resin available in liquid form can be cast. Castable resins include phenolics, polyesters, epoxies, silicones and acrylics. Types of molds The type of mold used depends on the plastic, the size and shape of the part, and other…
Elements of Plastic Mold Tooling Costs Besides the time in hours required to build tools for a given plastics part, the items of materials, maintenance and amortization of the tools enter the estimate. Overhead costs for keeping the toolroom also…