描述
用于电信连接器的改进型工厂高机械PBT GF30 FR V0
规范
1。树脂PBT塑料材料
2。高冲击PBT
3。耐磨性好
用于电信连接器的改进型工厂高机械PBT GF30 FR V0
产品详细信息
用于电信连接器的改进型工厂高机械PBT GF30 FR V0
PBT成型加工功能
1） PBT的吸湿性较低，但在高温下对水分更敏感，在成型过程中会降解PBT分子，使颜色变暗，并在表面产生斑点，因此通常应干燥
2） PBT熔体具有良好的流动性，因此很容易形成薄壁和复杂形状的产品，但要注意模具飞边和喷嘴流口水
3） PBT具有显著的熔点。当温度上升到熔点以上时，活性会突然增加，所以要注意
4） PBT的成型加工范围窄，冷却时结晶迅速，流动性好，特别适合快速注射
5） PBT具有较大的缩短率和缩短范围，不同方向的缩短率差异比其他塑料更显著
6）PBT对缺口和尖角的反应非常敏感。在这些方向上很容易显示应力集中，这大大降低了承载能力。当受到力或冲击时，它很容易断裂。因此，在规划塑料零件时应注意这一点，所有拐角，尤其是内角，应尽可能使用圆弧过渡
7） 纯PBT的延伸率可达200%，因此可以将凹陷较小的产品挤出模具。然而，填充玻璃纤维或填料后，其延伸率大大降低，如果产品中存在凹陷，则无法进行强制脱模
8） PBT模具的流道应尽可能短且厚，圆形流道的效果最好。一般来说，改性和未改性PBT均可用于普通流道，但玻璃纤维增强PBT只有在使用温流道成型时才能有良好的效果
9） 点浇口和潜在浇口具有较大的剪切效应，可以降低PBT熔体的表观粘度，有利于成型。这是经常使用的门。浇口直径应该更大
10）浇口最好面向型腔或型芯，以避免在型腔中移动时喷射，并尽量减少熔体的填充。否则，产品容易出现外观缺陷和功能退化
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Modified Factory High Mechanical PBT GF30 FR V0 For Telecommunication Connector
Specifications
1.Resin-PBT plastic material
2.High Impact PBT
3.good abrasion resistance.
Modified Factory High Mechanical PBT GF30 FR V0 For Telecommunication Connector
Product Details
modified factory high Mechanical PBT GF30 FR V0 for Telecommunication connector
PBT molding processing function
1) PBT has low hygroscopicity, but it is more sensitive to moisture at high temperatures, and it will degrade the PBT molecules during the molding process, darken the color, and cause spots on the surface, so it should generally be dried.
2) PBT melt has excellent mobility, so it is easy to form thin-walled and complex-shaped products, but pay attention to mold flashing and nozzle drooling.
3) PBT has a significant melting point. When the temperature rises above the melting point, the activity will suddenly increase, so pay attention to it.
4) PBT has a narrow molding processing range, rapid crystallization during cooling, and good mobility, making it especially suitable for rapid injections.
5) PBT has a larger shortening rate and shortening range, and the difference in shortening rate in different directions is more significant than other plastics.
6) PBT responds very sensitively to notches and sharp corners. It is easy to show stress concentration in these directions, which greatly reduces the load-bearing capacity. It is easy to break when subjected to force or impact. Therefore, this point should be paid attention to when planning plastic parts. , All corners, especially the internal corners, should use arc transitions as much as possible.
7) The elongation rate of pure PBT can reach 200%, so products with smaller depressions can be forced out of the mold. However, after filling with glass fiber or filler, its elongation is greatly reduced, and if there are depressions in the product, forced demoulding cannot be implemented.
8) The runner of the PBT mold should be short and thick if possible, and the round runner will work best. In general, both modified and unmodified PBT can be used with ordinary runners, but glass fiber reinforced PBT can only have a good effect when warm runner molding is used.
9) The point gate and the latent gate have a large shearing effect, which can reduce the apparent viscosity of the PBT melt, which is conducive to molding. It is the gate that is often used. The gate diameter should be larger.
10)The gate is best to face the core cavity or core, so as to avoid spraying and minimize the filling of the melt when moving in the cavity. Otherwise, the product is prone to appearance defects and deteriorates the function
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