By virtue of its enormous benefits, such as light weight, outstanding toughness, easy molding and low cost, plastic is gaining more and more popularity in modern industry and the production of daily necessities, because it is an ideal substitute for glass. Especially, in the fields of optical devices and the packaging industry, it has witnessed … Read more
The causes and countermeasures described below are aimed to solve the commonly seen injection molding defects that might occur in ordinary circumstances. The examples are just based on my own personal work experience, so if there is anything inappropriate, you are welcome to correct me! Short shots (incomplete filling) (1) Short shots (incomplete filling): The … Read more
The proportional injection speed control system is extensively adopted by injection machine manufacturers. In this article, we are going to explain the benefits of applying the multi-speed injection molding process, while offering an overview on the role it plays in eliminating product defects, such as short shot, entrapped air and sink marks, etc. By virtual … Read more
Injection molding temperature is very important for plastic injection molding,right injection molding temperature is a guarantee of product quality and production effciency.we will show what is the best injection process for different plastic material. Front:The suck-back section is located at the forefront of the barrel, where the nozzle is situated. The temperature here should be … Read more
In the plastic injection molding industry, some newcomers often ask: why the final plastic parts have a higher gloss when the mold temperature is higher. Now in plain language, let’s explain this phenomenon, as well as how to appropriately select the right mold temperatures. 1,Influence on Product Appearance: First of all, a too low temperature … Read more
Wear Plates The purpose of wear plates is to reduce the friction caused by slider movement, ensure smooth slider movement and thus increase mold service life; There are 2 types of wear plate: ① bottom wear plate and ② back wear plate; 5mm higher than the mold plate, the bottom wear plate is fixed on the mold … Read more
How to design an angle guide pin? The length of the angle guide pin is dependent on slider travel distance, usually a rounded number (5 times); a pocket hole needs to be set up on the mold plate since it’s longer than the slider; The angle of an angle pin cannot be larger than 25°; … Read more
Polystyrene (PS) 1. PS Performance: (Hard Plastic) PS is an amorphous polymer with a density of around 1.04g/cm3, AKA standard plastic. With favorable fluidity and a low water absorption rate (lower than 0.02%), it is a transparent plastic material that is easy to plastic injection molding process. PS product’s light transmissionrate are typically as high … Read more
Mold inserts are the terms relative to the integrated core – when the mold core is made of a single piece of steel, it is called an integrated core, while an insert is a part that’s inserted into the mold core made primarily of the steel material. As a matter of fact, the biggest weakness … Read more
Eco molding is a very professional injection molding company since 1998, we have accumulated lots of experience in plastic injection mold design, Now we share some special mold design for the complicated product. 1) sliders in sliders 2) design for bend tube 3, the design of a circular cylinder 4, Tubes with … Read more