The Influence of Plastic Mold Quality on Injection Molding Production

The purpose of mold design and manufacturing is for the mass production of injection parts with high efficiency and high quality, to produce high-quality plastic parts, the first mold is good, a good set of plastic molds is not just a good look, want to do a set of high-quality, high level, high precision plastic molds, from the following aspects. 1. The smoothness of the injection mold surface The polishing of the mold surface is very important, which is one of the most important links to determine the success or failure of mold manufacturing. The surface of the mold is not smooth enough, its surface is uneven, and the surface of the plastic parts injected will have skin lines and sand grains. Generally, the polishing surface into a mirror is good, in addition to the choice of mold steel, grinding personnel, time, technology will have an impact on the polishing mirror effect, requiring a professional mold polishing master, experience to be particularly rich in order to accurately grasp the polishing time, to ensure the effect of mold mirror polishing.
2. Accuracy of mold The precision of the mold determines the dimensional accuracy of the plastic parts, mold manufacturing must first have the conditions of high-precision measurement, such as quadratic detector, three-dimensional detector and other detection instruments, using the object imaging principle to accurately calculate the size and spatial position of the object, can detect the difference of 0.02mm, accurate measurement of product size and injection volume. 3. Fit degree of mold production Although the mold industry has certain operating standards, the mold and injection molding of different mold manufacturers will have small differences, such as mold opening and injection molding are not the same manufacturer, due to the different mechanical equipment and production methods of various manufacturers, there will be risks in production, affecting product quality and production efficiency, in order to reduce this risk, generally choose to open mold and injection molding in the same manufacturer is better. From mold opening to injection molding manufacturers can control themselves, and problems can be solved in time.

评论

发表评论

此博客中的热门博文

How does a CNC machining center ensure precision for mass-produced products?

Precision is one of the most important indicators to evaluate the processing performance of a CNC machining center . The processing precision and processing errors have a great impact on the quality of the processed parts. How can a CNC machining center ensure the precision of mass-produced products? The most commonly used processing method in the CNC machining industry is the trial cutting method. The trial cutting method is to try cutting, measure the size, adjust the cutting depth of the tool, cut again, and repeat the process until the required size is achieved. This method can ensure that the error is within a reasonable control range, but it is quite cumbersome and has a low production efficiency. It is mainly used for single-piece and small batch production. In mass automated production, CNC machining centers can achieve the required size by adjusting the relative positions of the machine tool, fixture, workpiece, and cutting tool in advance, thus achieving the goal of ensuring
阅读全文

How to deal with the plastic injection molding raw material is not filled?

图片
Electric injection molding machine in the production of injection mold will encounter the situation of injection molding is not filled, there is a lack of glue at the bone position right Angle and fuse connection, here to share some experience. Analysis of glue injection is not filled: 1. The trapped air in the bone position makes the injection molding machine fill up. 2. The filling of the injection molding machine caused by the glue welding line is not filled. Reason analysis of glue injection is not filled: When the injection molding machine is working, the mold gluing method is two-point gluing, and the injection speed is too fast, which is easy to cause the gas trapped at the right Angle of the bone position and cause the filling dissatisfaction; If the injection speed is too slow, it is easy to fill the fuse at the end of the flow. The solution: Multistage injection molding and position switching. In the first stage, the medium speed filling channel was used to pass
阅读全文

Control of Injection Molding Parts Processing Temperature

图片
There are many kinds of plastic, many plastic materials melting time are different, because the plastic does not have a specific melting point, the so-called melting point is a melting state of the temperature segment, the structure and composition of the plastic molecular chain is different, so the impact on its fluidity is also different, then in the production of injection parts manufacturers in the injection parts processing temperature control is also very important. 1. Mold temperature Some plastic materials due to high crystallization temperature, slow crystallization speed, need higher mold temperature, some due to control size and deformation, or the need for demoulding, to higher temperature or lower temperature, such as PC generally requires more than 60 degrees, and PPS in order to achieve a better appearance and improve fluidity, mold temperature sometimes needs more than 160 degrees, Therefore, the mold temperature has an inestimable effect on improving the appearanc
阅读全文