Development Bottleneck and Breakthrough in Current Status of Rubber Injection Molding in China
With the development of the rubber industry, the molding technology of rubber products has also undergone different stages of development: molding stage, injection stage, injection stage, and injection molding and injection transfer on the basis of injection. Injection molding has become the main method of rubber processing. With regard to the characteristics of rubber itself, injection molding has become the mainstream method of molding rubber products with its unique advantages. The injection...
Injection molding defect terminology and explanation
The terminology for injection molding defects is as follows: Cracking (common name: pull explosion; other names; broken buckle, cracked) Definition: A crack in the plastic part that is locally affected by pressure, external force or environmental influence on the surface or inside of the plastic part. 2. Surface protrusion Technical term: None (common name: surface protrusion; other names: top height, convex height, drag height) Definition: The high part of the plastic part is caused by the...
Method for preventing poor injection molding size
First, the injection molding size is too small The molded product is smaller than the specification size the reason "Hot expansion and contraction" I believe that everyone has heard that the resin is the same, so the molded product begins to shrink after being formed and is cooled to the same temperature as normal temperature, but the problem is that if the final shrinkage is too large, the molded article The size becomes too small, and as a result, the size is too small. One of the reasons is...
Plastic recycling machine forced feeding device
The compulsory material feeding device of the plastic recycling machine includes a reduction gear box, a screw outer cylinder and a forced screw. The forced screw is tapered along the material conveying direction and is located in the outer cylinder of the screw. The inner wall of the outer cylinder of the screw is matched with the shape of the forced screw, and the feed port is provided on the outer cylinder of the screw. The forced feeding device solves the problem that the original plastic...
Introduction to Injection Mold Design of Mobile Phone Charger Case
Abstract: This paper analyzes the process characteristics of the mobile phone charger casing, and introduces the working process of the injection mold structure and the mold of the cover of the mobile phone charger. The design method of the injection mold structure of the mobile phone charger housing is introduced. The material selection and heat treatment process of the mold core parts, the structural elements of the plastic parts of the mobile phone charger casing, the selection of the...
Domestic injection mold label development is at the time
In the past, the demand for products focused on functions. With the improvement of living standards, the consumer market has gradually developed to high quality. Consumers have higher requirements for the appearance and even the texture of the products, which makes the appearance of packaging particularly important. . The in-mold labeling products are generally optimistic in the industry for their unique advantages in high definition, good three-dimensionality, scratch resistance on the...
New injection molding equipment for caps
Ferromatik, a manufacturer of plastic processing equipment, announced that it has introduced a new series of economical injection molding equipment for the production of caps and other enclosed materials. The product name of this equipment is the Cap-Tec series, with clamping forces of 200, 300 and 400 tons. They have an optimized water pressure system and a short stroke clamp. In addition, they can also be equipped with 48 and 96-cavity molds. Reproduced from: specialchem
Solubility in the injection molding process
According to the cause of the bubble, the solution to the problem has the following aspects: (1) When the wall thickness of the product is large, the cooling rate of the outer surface of the product is faster than that of the center portion. Therefore, as the cooling progresses, the resin edge of the center portion shrinks to expand toward the surface, causing insufficient filling of the center portion. This condition is called vacuum bubble. The main solutions are: a) According to the wall...
Technology Serialization - Maintenance and Maintenance of Plastic Injection Molding Machines (1)
Injection molding machines are capable of molding plastic products with complex shapes and precise dimensions or with metal inserts at a time. They are widely used in national defense, electromechanical, automotive, transportation, building materials, packaging, agriculture, culture, education, health and daily life. Life in all areas. The injection molding process has good adaptability to the processing of various plastics, has a high production capacity, and is easy to implement automation....
Analysis of plastic injection molding conditions
In injection mold design and production, injection molding has the following three points: 1, mold temperature. Mold temperature is one of the key factors affecting the molding. Generally, the mold temperature is higher than that of micro-filling. Unbalanced mold temperature will seriously affect filling. Therefore, it is necessary to periodically change the cooling water and clean the mold waterway in mass production. 2, molding time. If the holding pressure is too high and the holding time is...
Vertical injection molding machine insert molding technology
Vertical injection molding machine - insert molding (insert molding) refers to the injection of resin into the mold after the preparation of the different material inserts, the molten material and the insert joint curing, forming an integrated product molding method. Over-sertmolding refers to the method of embedding injection molded parts on the surface of a metal plate. The above two molding methods are essentially the same. Its characteristics are as follows: 1. The combination of easy...
