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怎样选择合适的塑料干燥方式呢

一个良好的干燥效率决定因素有以下四点:干燥温度(Drying Temperature)、干燥时间(Residence time)、风量(Air flow)、露点(Dew point)。这四个因素环环相扣,任何一个条件的改变都会影响干燥效果。

There are four factors that have a good drying efficiency: flow (Drying Temperature), drying time (Residence time), Air (air volume), dew point (Dew). Each of these four factors, any condition change will affect the drying effect.

干燥温度是指进入干燥桶的空气温度,每一种原料因其物性,例如分子结构、比重、比热、含水率等因素。

The drying temperature refers to the temperature of the air entering the drying drum, and each kind of raw material is affected by its physical properties, such as molecular structure, specific gravity, specific heat, moisture content and so on.

干燥时温度均有一定的限制,温度太高时会使原料中的部分添加物挥发变质或结块,太低又会使某些结晶性原料不能达到所需干燥条件,例如:PC/120℃,ABS/80-95℃。

CPVC管材管件阀门批发

Drying temperature has a certain limit, the temperature is too high will make the material part of the volatile additives deteriorate or caking, too low will make some crystalline materials can not achieve the desired drying conditions, such as: PC/120 degrees, ABS/80-95 degrees.

另外在干桶选择上需要绝缘保温,以避免干燥温度漏失,造成干燥温度不足或能源的浪费。

In addition, the need for insulation insulation in the selection of dry barrels, in order to avoid the loss of drying temperature, resulting in insufficient drying temperature or energy waste.

干燥时间是指原料成型前预干燥的时间,干燥时间太长会造成原料变质或结块或浪费能源,干燥时间太短会造成含水率过高的现象。例如:PC/3-4小时,ABS/3-4小时。

Drying time refers to the pre drying time before the material is formed, the drying time is too long will cause the raw material deterioration or caking or waste of energy, drying time is too short will cause the phenomenon of high moisture content. For example: PC/3-4 hours, ABS/3-4 hours.

本文由CPVC管材管件阀门批发友情奉献.更多有关的知识请点击:http://www.sdcpvc.com我们将用最先进的技术.最真诚的态度.为您提供最为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

This paper consists of CPVC pipe valve fittings wholesale friendship dedication. More related knowledge: Please click http://www.sdcpvc.com we will use the most advanced technology. The most sincere attitude, to provide you with the most comprehensive service. More related knowledge and we will continue to offer. Please look forward to.


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