There are many factors to consider when selecting a stainless mold steel.The final plastic part requirements are the most important factors to consider when selecting the proper mold material. Cosmetic requirements, resin type and filler content are the main considerations along with the expected tool life. […]
Wire EDM machines are, by nature, fairly large users of energy, due to the fact that they employ electrical spark erosion. This requires a generator/power supply to convert the standard three-phase current into cutting pulses, and to run all the servo drive and pump motors to support the process. Ten or 15 years ago, many [...]
In order to make sure that the tolerances shown on the product drawing make sense and can be achieved. the mold designer must know molding characteristics of specified plastic well, […]
Our product designers often make mistakes in assigning tolerance to the product that are not necessary for the function of product. The proper method is to give a relatively large general tolerance and tighten up dimensions only where it is necessary for the function of the product or where it is required in the assembly [...]
Tolerances are probably the most important areas to be checked. When this project is quoted, the tolerance will be checked and question. Before designing, the final drawing released with complete tolerance should be required. because a large portion of the machining cost is directly related to the tolerance.
In order to achieve the shortest possible molding cycle, special cooling methods, added ejection features, special mold material and lubrication will be considered, on the other hand, some other elements may also have a significant impact on the molding cycle. For example Differences in the plastic, wall thicknesses, draft angles, methods of gating and so [...]
As for anticipated molding cycle, no matter our customers or mold makers always want to build a mold with shortest possible molding cycle. But making cost is a real problem. How to find a suitable solution to meet our customer requirement at a competitive price will be very important to every mold maker.
When any product contains even small portions of degraded material, it must be discarded, not only because of poor appearance of the product but physical properties may have been lost and the product will not perform as expected.
how to identify thermoplastic material degradation? I want to say when all thermoplastic materials change color to yellow or brown at certain high temperatures over a length of time. it will be shown, And the ultimate form of degradation is when the plastic becomes charred and black.
Of course, a mold designer should know which plastic characteristics will directly affect your mold design, for example: […]