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注塑模具在量产时要避免出现这些现象

来源:/ 日期:2022-08-27

济南注塑模具小批量生产中,由于是色粉与色母配色成型,造成色泽不匀,造成报费严重。如果是大批量生产的话,采用抽粒料的话,就不存在色差问题了。此外还有多个现象出现,要避免才行,下面来讲讲吧。
In the small batch production of injection molds in Jinan, due to the color matching and molding of toner and masterbatch, the color is uneven, resulting in serious fee reporting. If it is a mass production, there will be no color difference if the granular material is used. In addition, there are many phenomena that should be avoided. Let's talk about them.
尺寸不稳定
Dimensional instability
主要由于模具强度不良,精度不良,注射机工作不稳定及成形条件不稳定等原因,使塑件尺寸变化不稳定。主要原因是人工取件的情况下,造成每模的成型周期不一致,导致产品尺寸也不稳定。
It is mainly due to the poor strength and accuracy of the mold, the unstable operation of the injection machine and the unstable forming conditions, which make the size change of the plastic parts unstable. The main reason is that the molding cycle of each mold is inconsistent and the product size is unstable when the parts are taken manually.
气泡
Bubble
由于融料内充气过多或排气不良而导致塑件内残留气体,并呈体积较小或成串的空穴(注意应与真空泡区别)。主要是量产中,由于料粉将排气槽堵住,造成排气不够,产品内部或局部就会产生气泡或烧焦。
The residual gas in the plastic part is caused by excessive inflation or poor exhaust in the molten material, and is in the form of small volume or string of cavities (note that it should be distinguished from vacuum bubbles). The main reason is that in mass production, the exhaust slot is blocked by the material powder, resulting in insufficient exhaust, and bubbles or scorching will occur in the product or locally.
济南注塑模具
飞边过大
Excessive flash
由于合模不良,间隙过大,塑料流动性太好,加料过多使塑件沿边缘挤出多余薄片。
Due to poor mold closing, too large gap, too good plastic fluidity, and too much feeding, the plastic parts extrude extra sheets along the edge.
熔接不良
Poor welding
由于融料分流汇合时料温低,树脂与附合物不相溶等原因,使融料在汇合时,熔接不良,沿塑件表面或内部产生明显的细接缝线。
Due to the low material temperature and the incompatibility between resin and attachments when the molten materials are separated and merged, the fusion of the molten materials is poor, and obvious fine seam lines are generated along the surface or inside of the plastic parts.
塑件表面波纹
Surface ripple of plastic parts
由于融料沿模具表面不是整齐流动填充型腔而是成半固化波动状在型腔面流动或融料有滞流现象。
Because the melt does not flow neatly along the mold surface to fill the cavity, but flows in a semi solidified wave shape on the cavity surface or the melt has stagnant flow.
脱模不良
Die Adhesion 
由于填充作用过强,模具脱模性能不良等原因,使塑件脱模困难或脱模后塑件变形、破裂,或塑件残留方向不符合设计要求。
Due to the strong filling effect and poor mold demoulding performance, it is difficult to demould the plastic parts, or the plastic parts are deformed and cracked after demoulding, or the residual direction of the plastic parts does not meet the design requirements.
注塑模具在量产时要避免出现这些现象就到这里了,您对此有什么想咨询的问题就来我们网站看看吧!
To avoid these phenomena during mass production of injection molds, that's it. If you have any questions about this, please come to our website Look!

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