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模具排气不良会造成什么严重的后果?

来源:http://www.sdlqmj.com 日期:2019-06-03 发布人:admin 浏览次数:
模具厂家应该都很害怕这样的一件事,就是模具排气不良,为什么,因为模具一旦排气不良就很对模具的品质造成很严重的影响。下面济南注塑模具厂家就给大家具体分析一下模具排气不良会造成什么严重的后果,希望引起大家的重视!!
Mold manufacturers should be very afraid of such a thing, that is, the bad exhaust of the die, why, because once the bad exhaust of the die, it will have a very serious impact on the quality of the die. The following Jinan injection mould manufacturers will give you a specific analysis of the bad exhaust of the mold will cause what serious consequences, I hope to arouse your attention!!
① 气体经受大的压缩而产生反压力,而这种反压力增加了熔融料体充模流动的阻力,阻止熔融塑料正常快速充模,使模具型腔不能充满,导致塑料棱边不清。
(1) Gas is compressed to produce back pressure, which increases the resistance of filling flow of molten material, prevents normal and rapid filling of molten plastics, and makes the cavity of the mould not full, resulting in unclear edges of the plastics.
② 制品上呈现明显可见的流动痕和熔合缝,制件力学性能下降。
(2) There are obvious flow marks and fusion seams on the products, and the mechanical properties of the parts decrease.
③ 气体压缩后,会渗人到塑料内层,使塑料产生银纹、气孔、组织疏松、剥层等表面质量缺陷。
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(3) After gas compression, it will penetrate into the inner layer of plastics, resulting in surface quality defects such as craze, pore, loose structure and peeling.
④ 型腔内气体受到压缩后,产生热量而使塑料局部温度上升,塑料熔体分解变色,甚至烧焦碳化。
(4) After the gas in the cavity is compressed, heat is generated, which causes the local temperature of the plastic to rise, the melt of the plastic to decompose and discolor, and even to burn coke and carbonize.
⑤ 排气不良,降低充模速度,增加了制件成形的周期(尤其是高速注塑),严重影响生产率
_Poor exhaust, lower filling speed, increase the forming cycle of parts (especially high-speed injection), seriously affecting productivity.
以上就是由济南注塑模具厂家的小编给我们整理提供的精彩内容了,大家可以收藏我们的网站:http://www.sdlqmj.com!了解更多行业前沿资讯,谢谢大家的支持!
Above is the wonderful content provided to us by the small edition of Jinan injection mould manufacturer. You can collect our website: http://www.sdlqmj.com! To learn more about the industry frontier information, thank you for your support!

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