While the automotive industry is traditionally associated with metal and steel, plastic is increasingly important in the manufacture of cars and trucks. There are several reasons for this. For one thing, plastics are much sturdier than they have been in the past and, in some cases, are even more durable than their metal counterparts. More [...]
Properly increase section dimension of gate and runner; the position of gate is set at thick walls of the plastic parts and should be as symmetric as possible; improve mold exhausting condition; set cold-slug well with sufficient capacity to avoid cold material’s entering into the cavity and influencing filling and shrinkage compensation; […]
Properly improve injection and dwell pressure as well as the injection rate to increase melt's compression tightness; prolong time of injection and dwell( the freezing of gate should not occur too early) to realize sufficient shrinkage compensation; properly reduce melt temperature and properly raise mold temperature( whereas cooling should be reinforce at parts with thick [...]
Maybe you don’t understand when you look at this title, at first, Plastic materials fall into two basic types of process groups: Thermoset and Thermoplastic. […]
please don't limite your design when you design a plastic part, because it Increases your design options and requirements and still keep costs down, and plastic is easy in producing complex shapes. you know, when we design a metal product, there are many many design limitations if we put several metal stampings or castings fastened [...]
Every people who works in manufacturing industry must know manufacturing cycle meaning– Eliminating secondary operation further reduces costs. […]
maybe you find many many products around you contain plastic parts, for example, handset, telephone, iphone, ipad, ipod, Walkman, DVD player，TV set，HI-FI set，laptop，refrigerator and so on, […]
Different gate position and cooling time often build stresses, then lead to warping or twisting, but also we find other causes. in mold design, […]
For an Experienced molding engineer, that is a common problem, but for a fresh molding engineer, maybe It is worth mentioning, at first, in almost every plastic part, there are different thickness, thick sections cool slower than thin sections, […]
maybe there are some plastic products or products with plastic parts at hand, when looking carefully, you can find some of them have textures or lettering on their inner or external surface. […]