Multi Cavity Mold Design

How many under-cut structure you have seen? Jul 23, 2020
In plastic product, there are some under-cut structure. How many under-cut structure you have seen? Some product only have one under-cut, some product has more than one under cut surface, some product whole four surroundings has under-cuts, some product has under-cut in the under-cut. What's the meaning of under-cut? Under-cut means when you see from the top view, the highest point is the referenc...
- mold design
- under cut
- mold structure
Main points related to the design of gear mold Jul 23, 2020
1. Gate: generally, 3-point or 6-point is used for balance. For micro gears, usually single point is used. 2. Mold cavity: usually for 1~4 cavities. Small gear can reach 6 or 8 cavities; Different shapes of gears could be 3 cavities. The most representative is 4 cavities. 3. Ejection: normally use center ejector sleeve and ejector pin. For the helical gear, a bearing must be added to assist the ej...
- Helical gear mold
- POM gear injection
- small plastic gears
What is thin-wall injection Jul 23, 2020
Thin-wall injection molding technology is also called thin-wall plastic injection molding technology. There are three types of definitions: The ratio of flow length to thickness L/T, that is, the injection ratio of the flow length L from the melt into the mold to the farthest cavity of the cavity that the melt must be filled with the corresponding average wall thickness T is 100 or 150 is thin-wal...
- mold Filling
- injection molding machine
- plastic mold Filling
How much do you know about the shrinkage of common plastic raw materials? Sep 21, 2020
How much do you know about the shrinkage of common plastic raw materials? Different plastic materials have different shrinkages. Today we will talk about the most commonly used material shrinkage. ABS : 0.5% PC: 0.5% PMMA: 0.5% PS: 0.5% PC+ABS: 0.5% PE : 2% PP : 2% PA: 2% PVC : 2% POM : 2% When we make plastic mold, we should consider the plastic material shrinkage, otherwise the product wil...
- plastic material
- sink mark
- injection mold for electronic products
Injection mold gate type and selection-1 Sep 21, 2020
The gate of the plastic mold refers to a section of short runner connecting the runner and the strong, which is the entrance of the resin injection cavity. The shape, quantity, size and location of the gate in the mold will have a great impact on the quality of the plastic parts. Therefore, the selection of the gate is one of the key points of the plastic mold design. The gate will be introduced i...
- mold Filling
- injection mold company
- custom plastic molding
Injection mold gate type and selection-2 Aug 14, 2020
2.1 Unrestricted gate. Unrestricted gate is also called straight gate. Its characteristic is that the plastic melt flows directly into the cavity, the pressure loss is small, the feeding speed is fast and the molding is easier, and it is suitable for all kinds of plastics. It has the advantages of good transmission pressure, strong pressure maintaining and shrinking effect, simple and compact mold...
- mold Filling
- injection molding machine
- plastic mold Filling
Injection mold gate type and selection-3 Aug 21, 2020
2.2 Limit the gate. The cavity and the runner are connected by a channel with a short distance at one end and a small section. This channel is called a restrictive gate, which limits the thickness of the gate and rapid solidification. The main types of restriction gates are: 2.2.1 Point gate. Point gate is a round gate with extremely small cross-sectional size. The characteristics of the point gat...
- mold Filling
- injection molding machine
- plastic mold Filling
What are the precautions for mold polishing? Sep 04, 2020
Mold polishing has two purposes; one is to increase the smoothness of the mold, so that the surface of the product from the mold is smooth and beautiful, and the other is to make the mold easy to release, so that the plastic will not be stuck on the mold and cannot be taken off. Mastering a reasonable polishing method can improve the quality and service life of the mold, thereby improving product ...
- mirror polished parts
- high polishing
- mold polishing

1 ... 21 22 23 24 25 26 27 28

A total of 28 pages

Categories

Blog

New Blog

Tags

Search