兴宁市新一代生产厂家电缆桥架拉挤设备哪家的质量好

1、 拉挤工艺 Pultrusion process 

拉挤成型工艺过程是由送纱、浸胶、预成型、固化定型、 牵引、切断等工序组成。

 Pultrusion process is composed of yarn feeding, dipping, pre-bbbbing, curing, setting, trbbbbbb, cutting and other processes. 

无捻粗纱从纱架引出后，经过导纱装置进入树脂槽浸透树脂 胶液，然后进入预成型模，将多余树脂和气泡排出，再进入成 型模凝胶、固化。固化后的制品由牵引机连续不断地从模具拉 出，最后由切断机定长切断。 

After roving out of the frame, the roving device enters the resin grooves through the guide yarn device to soak the resin glue, and then enters the pre bbbbing die to discharge the excess resin and bubbles, and then enter the bbbbing mold to gel and solidify. The solidified products are continuously pulled out of the die by the tractor, and finally cut off by the cutting machine at a fixed length. 拉挤成型工艺中除立式和卧式机组外，尚有弯曲形制品拉挤 成型工艺，反应注射拉挤工艺等。 

In the process of pultrusion, besides vertical and horizontal units, there are also pultrusion processes for bending products and reactive injection pultrusion processes. 

2、 工艺控制 technology control 拉挤成型工艺控制的参数主要包括成型温度、固化时间、 牵引张力及牵引速度等。 Pultrusion process control bbbbbeters mainly include bbbbing temperature, curing time, trbbbbbb tension and trbbbbbb speed. (1) 成型温度 Molding temperature 在拉挤成型过程中，材料在穿越模具时发生的变化是最 关键的。 In the process of pultrusion, the change of material when passing through the die is the most critical. 玻璃纤维浸胶后通过加热的金属模具，一般将连续拉挤 过程分为预热区、胶凝区和固化区。 The continuous extrusion process is generally divided into preheating zone, cementing zone and curing zone by heating the bbbbl die after glass fibre dipping. 在模具上使用加热板或加热套来加热。 Heating plate or heating sleeve is used to heat the mold. 树脂在加热过程中，温度逐渐升高，粘度降低。 During the heating process, the temperature of the resin increases gradually and the viscosity decreases. 通过预热区后，树脂体系开始胶凝、固化，在固化区内产品受 热继续固化，以保证出模时有足够的固化度。 After the preheating zone, the resin system begins to gel and solidify, and the products in the solidification zone continue to solidify by heating, so as to ensure sufficient solidification degree when the mould is produced. 模具的加热条件是根据树脂体系来确定的。 The heating condition of the die is determined by the resin system. 以聚酯树脂配方为例，一般来讲，模具温度应大于树脂的放热 峰值，温度上限为树脂的降解温度。温度、胶凝时间、拉速应 当匹配。预热区温度可以较低，胶凝区与固化区温度相似。 Taking the bbbbulation of polyester resin as an example, generally speaking, the die temperature should be higher than the exothermic peak value of the resin, and the upper limit of the temperature should be the degradation temperature of the resin. Temperature, gelling time and drawing speed should be matched. The temperature of preheating zone can be lower, and the temperature of cementing zone is similar to that of curing zone. 温度分布应使产品固化放热峰出现在模具中部靠前，胶凝固 化分离点应控制在模具中部。 Temperature distribution should make the curing exothermic peak appear in the middle of the die, and the separation point of gelling and curing should be controlled in the middle of the die. 温度梯度不宜过大。 The temperature gradient should not be too large. 

兴宁市新一代生产厂家电缆桥架拉挤设备哪家的质量好