Typically, the decision to choose an injection mold depends on the type of product, its design, production volume, and budget. However, even after you have all this sorted, how do you know which mold is better: mold with runner plate(2 plate) or plate mold wthout runner plate(3 plate)?   Don’t worry if you’re confused; this detailed guide will help you understand both molds’ usage, and differences.       What Is A 2 Plate Mold? This is the most fundamental mold type, frequently used to produce inexpensive plastic goods. It has a cavity, a core, and two spits at the dividing line. It goes off into space in a single stage. The runner and gate must be positioned near the dividing line using a two-plate mold.   Consequently, when using the runner, it is important to evacuate the part, and it is necessary to break it apart individually. However, you should not use two-plate molding, even if it is a simpler and less expensive alternative that can pr...

The scratche (scrape marks) on the appearance of an injection molded product usually occur on such deep-cavity products as chargers, routers, and chassis, etc. It is also a particularly common problem during the injection molding process, known as one of the 10 most challenging problems in the mold and injection molding industry. Glossy products, as well as products with textured sides are easily scratched. What on earth has caused it? When it comes to the scratches on the textured surface, the first thing that comes to the mind of an engineer is that the draft angle on the side of the product is not large enough, but why the scratch still exist after the draft angle is increased? So, solving the occurrence of scratches is not just a matter of the draft angle. In fact, it is not so simple at all. Now, let’s thoroughly analyze and solve the problem of surface scratches.   The causes of surface scratches mainly include the following factors:   I. Draft Angle   The ke...

The definition of weld lines: When multiple plastic flow fronts meet in the cavity after encountering inserts, holes, or areas with inconsistent flow rates or interrupted melt flows, or in the case of gate injection filling, the inability of two or more flow fronts to fully “knit” together will cause the linear weld marks. The appearance of weld lines greatly reduces the mechanical strength of the product. The solution to the weld lines is basically the same as the method for reducing product sink marks.   I. Equipment To respond to poor plasticization and uneven melt temperature, the molding cycle can be extended to make plasticization more complete, and select the molding machine with a higher plasticizing capacity when necessary.     II. Mold (1) When the mold temperature is too low, raise the mold temperature appropriately or purposefully raise the local temperature at the weld seam.   (2) When the runner is too small, narrow or shallow, and the cold...

Flash, also known as flashing or burrs, mostly occurs between the matching parts of a mold, such as the parting surface of the mold, the sliding part of the slider, the clearance of the insert, and the gap of the ejector, etc. If the flashing is not resolved in a timely manner, it will be further worsened, so that the mold will be pressed to cause local collapses or other permanent damages. The flashing occurring in the clearance of the insert and the gap of the ejector will also cause the product to stick on the mold, thus affecting ejection.   Flash is actually the excessive plastic material which enters the matching gaps of the mold and is attached to the final product after cooling. It is very easy to solve the problem of flashing, i.e., keeping the melt out of the matching gaps in a mold. The plastic melt usually enters the mold matching gaps in two scenarios: one is that the mold matching gap is large, making it easy for the melt to get in; the other is that the mold matchin...

    Plastic Injection Mold Steel Selection for Molding Components   Molding components refer to the mold parts or components which have a direct contact with the plastic materials to form a product, such as mold cavities, mold cores, sliders, inserts and lifters, etc.   The steel quality of the molding components has a direct influence on mold quality and service life, and determines the appearance and quality of a plastic injection molded product, so plastic injection mold making factory must make careful selection. Generally speaking, materials have to be selected based on contract stipulations, client requests, as well as product / mold requirements and characteristics.   Principle for steel selection of molding components: different types of steels need to be selected based on types of plastic, product shapes / dimensions, product appearance / quality / application requirements and production scale, etc., while paying attention to the various material perfo...

How CNC Precision Machining Will Impact Industry 4.0   The Fourth Industrial Revolution, also known as Industry 4.0, is the fusion of advanced manufacturing techniques with digital technologies. This transformative era is underpinned by automation, data exchange, and cyber-physical systems. One vital player in this revolution is CNC (Computer Numerical Control) precision machining, an advanced manufacturing method that promises accuracy, repeatability, and superior quality. This blog post will delve into the impactful role of CNC precision machining in Industry 4.0.           Understanding CNC Precision Machining CNC precision machining is a process used in the manufacturing sector that involves the use of computers to control machine tools. This technology can be applied to various types of machinery, like lathes, mills, routers, and grinders. The precision aspect comes from the computer control, enabling the device to produce complex shapes that would be almost impossible to achieve ...