生产熔喷布过程中如何提高韧性?

2025-03-15 22:40:17
推荐回答(1个)
回答1:

1、提高熔喷布韧性的方法:
a、增大热风流量(纤维细,缠绕的结点多,纤维受力均匀,强力增大,但是增大到一定程度后反而会下降);
b、升高热风温度(同上);
c、适当增加产品的克重(在内控范围内);
d、提高模头(模尖)等各区的温度(同a);
e、适当降低产量;
f、适当减小dcd(不能太小,反而布脆强力会下降,结合其它参数共同运用);
g、增大网底吸风(大克重较明显);
h、用熔指较低的原料。
2、提高熔喷布(静电)过滤效率的方法:
a、增大热风流量或温度(增加纤维的细度,减小孔隙率,提高扑捉能力,但阻力增加);
b、增大静电电压(电流)(极化纤维,增大纤维的静电场能,提高其吸附能力);
c、在原料中加入粉料或其它驻极体(提高纤维的受电能力和储电时间,让纤维携带更多的电荷和带电荷时间);
d、加大网底吸风(增大纤维的密实程度,提高纤维的扑捉能力。大克重明显,不常用);
e、适当降低产量(同工艺下,挤出量变小,纤维变细,阻力增大);
f、提高模头(模尖)等区的工作温度(熔体流动性变好,纤维变细);
g、提高纺丝环境温度(纤维变细,一般是在室温升高的情况下,阻力增加较明显,其它物理指标下降);
h、适当增大粉料的添加量。
锦工风机已经为250多条熔喷布产线配套了罗茨风机,客户在生产中摸索出来的很多有关工艺参数调节的经验。罗茨风机可以找锦工,但熔喷布生产工艺参数的深入交流,就不要找我们了,知道的以上都写的很清楚了,我们除了做罗茨鼓风机专业外,做熔喷布真的是外行,因此,以上内容仅供参考,以免参数错误产生误导。

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