- 産業: Software
- Number of terms: 1241
- Number of blossaries: 0
- Company Profile:
Moldflow develops plastic injection molding software.
En afkrydsningsfeltet ring er den glidende ring med kontraventil på forsiden af skruen. Checken ring tillader smeltet plast til flow fremad på forsiden af skruen during plastication og forhindrer flow tilbage ind i skruen under injektion. Checken ring er en høj slid element, der kan lække under injektion, effektivt at mindske det pres, der er anvendt til den smeltede plast.
Se kontraventil.
Industry:Software
空气枪是聚合物注入融到空气中，而不是进模具。空气枪 ，主要目的是作为一个"测试运行，"，以确保机器运行正常。
油缸是回浇口套管接触拔注射活塞向前，移动从喷嘴迫使熔化的塑料。如果熔融金属杯、 测温探头中捕捉到可以用于退出喷嘴检查的熔融温度。这是一个熔体温度更精确的测量。
Industry:Software
空中陷阱是空气或其他气体的泡沫已趋同流战线被困或被困腔墙上。这个表面缺陷部件的原因。陷阱，可防止更改门位置或部分厚度的空气。好的做法是在空中陷阱位置在模具中放置喷口。
Industry:Software
非晶聚合物是一个家庭的特点是结构松散的纠缠的聚合物链的聚合物。非晶一词表示彼此，分子外力而没有首选的方向。在注射成型非晶聚合物具有方向。
非晶聚合物在云中液体状态，通常少于聚合物收缩。非晶聚合物展品无 x 射线衍射图样，因为它们不是结晶性质。
见还液晶聚合物，Semi-crystalline 聚合物。
Industry:Software
各向异性收缩是在不同的方向有不同幅度的收缩。各向异性收缩发生由于限制沿纤维长度，往往要流方向收缩的填充材料。它还会发生笔触材料，当分子有足够的时间来放松从适当的粘性伸长剪在流动过程。
Industry:Software
An air shot is the injection of polymer melt into the air, instead of into the mold. The main purpose of an air shot is to act as a "test run," to make sure that the machine is operating properly.
The cylinder is pulled back from contact with the sprue bushing and the injection piston is moved forward, forcing melted plastic from the nozzle. If the melt is caught in a metal cup, a pyrometer probe can be used to cheque the temperature of the melt as it exits from the nozzle. This is one of the more accurate measurements of the melt temperature.
Industry:Software
An air trap is an air or gas bubble that has been trapped by converging flow fronts or trapped against the cavity wall. This causes a surface blemish on the part. Air traps can be prevented by changing the gate location or part thickness. Good practise is to place vents in the mould at the air trap location.
Industry:Software
Amorphous polymers are a family of polymers that are characterised by entangled polymer chains that are loosely bound. The term amorphous indicates that there is no preferred orientation of the molecules, relative to each other, without external force. During injection moulding amorphous polymers have orientation.
Amorphous polymers are in a super-cooled liquid state and generally shrink less than semi-crystalline polymers. Amorphous polymers exhibit no x-ray diffraction pattern, because they are not crystalline in nature.
See also Crystalline Polymers, Semi-crystalline Polymers.
Industry:Software
Anisotropic shrinkage is shrinkage that has different magnitudes in different directions. Anisotropic shrinkage occurs in filled materials due to the restriction of shrinkage along the fibre length, which tends to be in the flow direction. It also occurs in un-filled materials when the molecules have insufficient time to relax from the viscous elongation due to shear during flow.
Industry:Software
Aspect ratio normally refers to the relation between width and height of a mesh element. These are important because they affect analysis accuracy. Aspect ratios are especially important in sensitive areas such as gates, or gas channels in a gas-injection simulation.
The term aspect ratio is also used when describing fibers. In this context, aspect ratio is the ratio of the length of the fibre to the diameter.
Industry:Software
