1) molding rate
成型率
1.
The surface wave of wire rope and the metal core of rope to be free to other place is due to molding rate too high,bigger fluctuation,uneven strand tension forces and clockwise stra.
对港机 -集装箱用钢丝绳主要品种在实际使用中存在的质量问题进行详细分析 ,认为抗疲劳性能差和使用寿命短的主要原因是钢丝韧性指标低、外层股之间的缝隙太小和钢丝绳油脂不到位 ;钢丝绳表面浪形和金属绳芯外逃是由于成型率过高、波动偏大 ,各股捻制张力不均匀和顺向捻制不到位。
2) rate of mo(u)lding
成型速率
3) high energy rate forming
高能率成型
1.
Electromagnetic forming(EMF)is one kind of high energy rate forming-whose characteristics make it more economical and practical-and it is prior to all others processing methods for some workpieces with special geometry.
电磁成型是高能率成型方法之一,它具有较高的经济性和实用性,对一些特殊零件是优先选用的工艺方法。
4) shrinkage
[英]['ʃrɪŋkɪdʒ] [美]['ʃrɪŋkɪdʒ]
成型收缩率
1.
The effects of the injection molding process on the molding shrinkage of Polycarbonates were studied.
研究了注塑参数对聚碳酸酯(PC)成型收缩率的影响,从理论上探讨了注塑参数-制品结构-收缩率之间的关系。
2.
The shrinkage of plastic products is a very important parameter and need to be forecast during the design of injection molds, which affects the shape and size precision of the products.
塑料的成型收缩率直接关系到制品的形状和尺寸精度,因此在塑料注射成型的模具设计中,迫切需要预测制品的成型收缩率。
5) multi-chips integrated
集成功率型
1.
Power white LED of 1 W based on multi-chips integrated which is developed by ourselves has been tested.
通过对自行设计的集成功率型1W白光LED进行测试,发现当持续点亮900h时,其光通量衰减只有12%,比传统支架型封装的白光LED明显慢,而色温飘移也不明显。
补充资料:射出成型过程的一般塑胶收缩率
成型加工温度,模具温度及射出成型过程的一般塑胶收缩率 | |||||||
材 料 | 标 称 | 密度 | 玻璃纤维含量 | 平均比热 | 加工温度 | 模具温度 | 收 缩 率 |
[g/cm3] | [%] | [KJ/(kg×K)] | [℃] | [℃] | [%] | ||
聚苯乙烯 | PS | 1.05 | 1.3 | 180-280 | 10 | 0.3-0.6 | |
聚苯乙烯,中.高冲击性 | HI-PS | 1.05 | 1.21 | 170-260 | 5-75 | 0.5-0.6 | |
聚苯乙烯-丙烯晴 | SAN | 1.08 | 1.3 | 180-270 | 50-80 | 0.5-0.7 | |
丙烯晴-丁二烯-苯乙烯 | ABS | 1.06 | 1.4 | 210-275 | 50-90 | 0.4-0.7 | |
苯烯晴-苯乙烯-丙烯酸 | ASA | 1.07 | 1.3 | 230-260 | 40-90 | 0.4-0.6 | |
低密度聚乙烯 | LDPE | 0.954 | 2.0-2.1 | 160-260 | 50-70 | 1.5-5.0 | |
高密度聚乙烯 | HDPE | 0.92 | 2.3-2.5 | 260-300 | 30-70 | 1.5-3.0 | |
聚丙烯 | PP | 0.915 | 0.84-2.5 | 250-270 | 50-75 | 1.0-2.5 | |
聚本烯-GR | PPGR | 1.15 | 30 | 1.1-1.35 | 260-280 | 50-80 | 0.5-1.2 |
聚异丁烯 | IB | 150-200 | |||||
聚甲基戊烯 | PMP | 0.83 | 280-310 | 70 | 1.5-3.0 | ||
软质聚氯乙烯 | PVC-soft | 1.38 | 0.85 | 170-200 | 15-50 | >0.5 | |
硬质聚氯乙烯 | PVC-rigid | 1.38 | 0.83-0.92 | 180-210 | 30-50 | 0.5 | |
聚氟亚乙烯 | PVDF | 1.2 | 250-270 | 90-100 | 3.0-6.0 | ||
聚四氟乙烯 | PTFE | 2.12-2.17 | 0.12 | 320-360 | 200-230 | 3.5-6.0 | |
氟化乙烯基丙烯共聚物 | FEP | ||||||
聚甲基丙烯酸甲脂(丙烯) | PMMA | 1.18 | 1.46 | 210-240 | 50-70 | 0.1-0.8 | |
聚氧甲烯(乙缩烯) | POM | 1.42 | 1.47-1.5 | 200-210 | >90 | 1.9-2.3 | |
聚苯撑氧或聚氧化亚苯 | PPO | 1.06 | 1.45 | 250-300 | 80-100 | 0.5-0.7 | |
聚苯撑氧-GR | PPO-GR | 1.27 | 30 | 1.3 | 280-300 | 80-100 | <0.7 |
醋酸纤维素 | CA | 1.27-1.3 | 1.3-1.7 | 180-320 | 50-80 | 0.5 | |
醋酸-丁酸纤维素 | CAB | 1.17-1.22 | 1.3-1.7 | 180-230 | 50-80 | 0.5 | |
丙酸纤维表素 | CP | 1.19-1.23 | 1.7 | 180-230 | 50-80 | 0.5 | |
聚碳酸醋 | PC | 1.2 | 1.3 | 280-320 | 80-100 | 0.8 | |
聚碳酸脂-GR | PC-GR | 1.42 | 10-32 | 1.1 | 300-330 | 100-120 | 0.15-0.55 |
聚乙烯对苯二甲酸乙酯 | PET | 1.37 | 260-290 | 140 | 1.2-2.0 | ||
聚乙烯对苯二甲酸乙酯-GR | PET-GR | 1.5-1.57 | 20-30 | 260-290 | 140 | 1.2-2.0 | |
聚丁烯对苯二酸 | PBT | 1.3 | 240-260 | 60-80 | 1.5-2.5 | ||
聚丁烯对苯二酸-GR | PBT-GR | 1.52-1.57 | 30-50 | 250-270 | 60-80 | 0.3-1.2 | |
尼龙6(聚酸胺6) | PA 6 | 1.14 | 1.8 | 240-260 | 70-120 | 0.5-2.2 | |
尼龙6-GR | PA 6-GR | 1.36-1.65 | 30-50 | 1.26-1.7 | 270-290 | 70-120 | 0.3-1 |
尼龙6/6 | PA 66 | 1.15 | 1.7 | 260-290 | 70-120 | 0.5-2.5 | |
尼龙6/6-GR | PA66-GR | 1.20-1.65 | 30-50 | 1.4 | 280-310 | 70-120 | 0.5-1.5 |
尼龙11 | PA 11 | 1.03-1.05 | 2.4 | 210-250 | 40-80 | 0.5-1.5 | |
尼龙12 | PA 12 | 1.01-1.04 | 1.2 | 210-250 | 40-80 | 0.5-1.5 | |
聚醚矾 | PSO | 1.37 | 310-390 | 100-160 | 0.7 | ||
聚硫化亚苯 | PPS | 1.64 | 40 | 370 | >150 | 0.2 | |
热塑性聚亚胺脂 | PUR | 1.2 | 1.85 | 195-230 | 20-40 | 0.9 | |
酚 甲醛树脂GP | PF | 1.4 | 1.3 | 60-80 | 170-190 | 1.2 | |
三聚氰胺甲醛GP | MF | 1.5 | 1.3 | 70-80 | 150-165 | 1.2-2 | |
三聚氰胺酚甲醛 | MPF | 1.6 | 1.1 | 60-80 | 160-180 | 0.8-1.8 | |
聚脂树脂 | UP | 2.0-2.1 | 0.9 | 40-60 | 150-170 | 0.5-0.8 | |
环氧树脂 | EP | 1.9 | 30-80 | 1.7-1.9 | ca.70 | 160-170 | 0.2 |
a 注意与流动方向及横向的不同收缩率,制程影响。 | |||||||
b 共聚物 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条