Injection molding industry expert !
PP luggage case color blank solution when injection
You are here: Home » Blogs » Blog » PP luggage case color blank solution when injection

PP luggage case color blank solution when injection

Views:3     Author:Site Editor     Publish Time: 2020-07-04      Origin:Site Inquire

PP luggage case color blank color blank is a common problem in the injection molding process. It shows that the color of the box is uneven and there is localized whitening.

 

1592639943(1)

There are five reasons that may cause this problem:

 

(1) The temperature of the melt and the mold is too low.

 

(2) The structural design of the casting system of the mold is unreasonable.

 

(3) The cooling time is too short.

 

(4) The ejector design of demoulding is unreasonable.

 

(5) The injection speed and pressure are too high.

 

 e7b75bee269a456a6d630f240b732dff

 

Solutions

(1) The temperature of the barrel and mold should be increased.

 

(2) The mold runner and gate structure should be improved so that the molten material does not produce turbulent flow when filling the mold.

 

(3) The cooling time should be properly extended.

 

(4) It is best to use a pneumatic demoulding device.

 

(5) It should be properly reduced.

201503241432319305


Related products

packing-tips-for-first-time-international-travellers.jpg

Look at you… breaking all the rules on your first overseas trip! But some rules are made to be broken, and these travel rules are it.If you’re heading overseas for the first time there are so many checklists, rules and guides that it’s easy to get carried away. It’s understandable, you’re heading in

READ MORE
which-suitcase-is-best-casual-travellers.jpg

There are certainly no hard and fast rules about the perfect suitcase for your circumstances, however we have noticed that our customers will typically fall into one of four categories; the casual traveller, the business traveller, the adventure traveller and the backpacker. Here are our top picks f

READ MORE
quality-luggage-vs-expensive-luggage.jpg

Everyone seems to have had some degree of experience with the inexpensive suitcase that has lasted for years and is battered and loved down to its fraying handle, and in contrast the expensive suitcase which the wheel fell off on its maiden voyage. So, is it really worthwhile spending more money on

READ MORE
no photo

There are certainly no hard and fast rules about the perfect suitcase for your circumstances, however we have noticed that our customers will typically fall into one of four categories; the casual traveller, the business traveller, the adventure traveller and the backpacker. Here are our top picks f

READ MORE
1.jpg

The vast majority of customers who enter our store for a suitcase come in with the intention of buying a large size and we always ask them to stop and consider this. At first thought it makes sense, buy the maximum size and then you can fill it as much as needed for each trip – simply leaving some

READ MORE
suitcases-versues-wheeled-duffel-bags.jpg

You might be surprised to find a wheeled duffel bag is a more versatile solution for you than a suitcase, here’s why…

READ MORE
"Make good quality luggage" is our commitment to every customer.

Add

   xinhe industrial zone,wenling city ,zhejiang ,china
   +86-576-86552388
   +83-576-86595189
   lynn@bubule.com
 

Products

Quick Links

Copyright  Zhejiang Bubule Bags Co., Ltd., All Rights Reserved