Structural integrity. Is the mold appropriately designed to withstand the forces it will encounter in handling and operation? Consider general alignment from pillars and bushings, not just the fixed and moving halves, but also any moving elements. Is the proposed guidance sufficient to ensure proper alignment and long life? Are the bearing elements accessible for mold maintenance? Are proper straps and lifting points for safe handling included in the design?Mold splitting and alignment control. For many molds, wear at the split lines greatly influences mold life and part quality, so accurate control of the split lines during final closing is crucial. On the main mold halves, alignment locks are an effective way to ensure consistent mold closing. Locks need to follow manufacturers’ recommendations for loading and should be incorporated into the mold to minimize thermal expansion effects.A good mold design review considers the alignment of all moving cavity-forming sections. Side cores and rising cores must be designed to consistently and accurately locate when the mold is new and as the mold wears. To accurately predict which surfaces will wear and how that wear will impact the moving mold element location, assess how well the element is guided and located in its closed position. It is also important to consider the influence of melt pressure. Too often, a rising core does not make a hard stop and an undercut feature moves in position, depending on the molding conditions. Alignment issues rarely crop up when the mold is new, but, as the cycle count goes up, problems creep in.Gating/runner system. Ensure that the gating solution implemented in the mold design is consistent with what was used in the simulation. The most common problem that is identified in troubleshooting a mold is that its actual performance does not match what was predicted in the simulation. The first element to check is gate size. It is surprising how often the gating specified in the mold design does not match what was used in simulation. Other factors to consider include the gate scar blemish (again, this should be considered in the DFM phase), and the ejection or separation of the runner system.Venting. A common approach to venting is “venting equals metal off,” whereby the mold is built and the venting is added after trialing. This is a lost opportunity. Simulation should show where specific venting is required, which should then propel venting to be incorporated at the design stage. Selecting appropriate vent size is based on understanding the smallest gap into which the chosen resin will flash. So, as part of the mold design review, verify that all shut-off faces are vented, that all end of fills are properly vented and that each venting solution can be adequately cleaned. Ideally, vents will be self-cleaning by the actions of the components as the mold operates.To know details visit our site http://allindiayellowpage.com/.