博文

Why Is It Easy to Produce Gas or Jet Marks at the Gate of Injection Molding Products?

图片
The reason why the gate of injection molding products is easy to produce gas marks or jet marks may be caused by the following aspects: 1. Uneven plastic flow: The gate is the first place where plastic is injected into the mold, when the plastic flows into the mold, the flow speed, pressure and temperature will change, if these factors are not uniform, it will lead to uneven plastic flow at the gate, forming pores or jet marks. 2. Unreasonable mold design: Mold design is also one of the factors affecting the gas or jet pattern at the gate. If the design of the mold is not reasonable, such as the improper location of the gate, or the mold cavity design is not reasonable, it will cause the plastic flow at the gate to be uneven, resulting in gas or jet marks. 3. Plastic material is not suitable: Different plastic materials have different mobility and shrinkage rates, if the selected plastic material has poor mobility or high shrinkage rate, it is easy to produce gas or jet marks at
发表评论
阅读全文

What Are the Reasons Why Injection Molding Products Are Easy to Produce Bubbles?

图片
1. The problem of plastic raw materials. If the plastic raw materials used contain water or other volatile substances, during the injection molding process, these water or volatile substances will be heated by high temperature and high pressure, evaporate into gas, and form bubbles. 2. Injection molding machine problems. If the operation parameters of the injection molding machine are set improperly, such as the injection temperature is too high or the injection speed is too fast, it will lead to the generation of bubbles. In addition, if the pressure of the injection molding machine is unstable or insufficient, it will also cause the air to be unable to discharge the mold and form bubbles. 3. Mold problems. If there are burrs, grooves and other defects on the inner surface of the mold, or the mold opening is not tightly sealed, bubbles will be generated during the injection molding process. 4. Problems with the injection molding process. During the injection process, the injec
发表评论
阅读全文

What Are the Molding Process Conditions of Injection Molding Products?

图片
Injection molding process conditions of injection molding products mainly include the following aspects: 1. Temperature conditions: Injection molding needs to heat plastic particles to a melting state, and generally the injection molding machine will set the heater of the heating cylinder, the cylinder and the mold to provide heating conditions. Different plastic materials require different heating temperatures, and usually need to be tested before production to determine the appropriate temperature conditions. 2. Pressure conditions: Injection molding needs to apply a certain pressure in the mold, so that the plastic can fully fill the cavity of the mold, and can maintain a certain pressure time to prevent the production of shrinkage holes, bubbles and other defects. The size of the pressure should be set reasonably according to the pressure range of the injection molding machine and the shape and size of the product. 3. Injection speed condition: Injection speed refers to the
发表评论
阅读全文

How to Ensure the Accuracy of Injection Molding Products?

图片
In today’s modern industrial production, plastic injection molding technology has become extremely important. Injection molding plays an irreplaceable role in the fields of home appliance shell, auto parts, medical equipment, and household necessities. However, many companies often face a problem in the production process: how to ensure the accuracy of injection molding products? Today, we will discuss the factors that affect the accuracy of injection molding products , and share the secrets of improving accuracy for you. 1. Design molds and make molds Mold is one of the key components of injection molding, and its design and manufacturing quality directly affect the accuracy of the final product. Scientific and reasonable mold design can ensure the uniform flow of plastics in the mold, reducing the possibility of defects and deformation. The key to ensure the service life of the mold and the accuracy of the product is the high-precision mold processing and heat treatment process.
发表评论
阅读全文

The Influence of Plastic Mold Quality on Injection Molding Production

图片
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
发表评论
阅读全文

How to deal with the surface of plastic injection molding mold appears gloss defect?

图片
Plastic injection molding mold will appear a lot of difficulties, injection molding mold is composed of two parts of the moving mold and the fixed mold, the production of plastic products need to use the mold injection molding, is through the injection molding machine will plastic raw materials into the injection mold cavity, after cooling and curing to form the injection molding parts. In the mold manufacturing process, how to deal with the surface of plastic injection molding mold appears gloss defect? The following is the causes and solutions of the surface gloss defect of plastic injection molding mold and. Hope to help you. 1. The mold finish is poor, the cavity surface has rust, etc., the mold exhaust is poor. 2. The mold gating system has defects, should increase the cold well, increase the flow channel, polishing main channel, diverter and gate. 3. The material temperature and mold temperature are low, if necessary, the local heating method can be used at the gate. 4.
发表评论
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
发表评论
阅读全文