19
2022
-
05
Plastic mold design and production manufacturers talk about matters needing attention in injection mold maintenance
Plastic mold design and production manufacturers tell you that injection mold maintenance and mold maintenance are more important. The more maintenance times, the shorter the mold life. On the contrary, the better the maintenance, the longer the mold life, the injection mold is like the human body. If it is not regular or unreasonable Maintenance, various problems will occur in production, resulting in no guarantee of product quality
Plastic mold design and production manufacturers talk about matters needing attention in injection mold maintenance
Plastic Mold Design Manufacturer: Precautions in Injection Mold Maintenance
Plastic mold design and production manufacturers tell you that injection mold maintenance and mold maintenance are more important. The more maintenance times, the shorter the mold life. On the contrary, the better the maintenance, the longer the mold life, the injection mold is like the human body. If it is not regular or unreasonable Maintenance, various problems will occur in production, resulting in no guarantee of product quality, except for the maintenance of injection molds, we also need to know more about the maintenance of injection molding tools. Generally, the maintenance of injection molds is divided into three categories: 1. Maintenance when injection molds are not in production 2. Maintenance during injection mold production 3. Maintenance after injection mold production.
The following plastic mold design and production manufacturers mainly introduce how to maintain the injection mold after production, because in some injection mold factories, many masters think that the mold after injection is good. After the injection mold is produced, it is necessary to remember to spray a layer of anti-rust oil on the inner cavity of the mold, which seems to be a small move. If ignored, the mold will rust and corrode due to long storage time in the next production, the maintenance of the injection mold is also one of the important factors that directly affect the life of the mold. As long as the injection mold is well maintained, the service life of the mold will be longer.
Analysis of the causes of warpage in the injection molding process by plastic mold design manufacturers
Cause analysis of warpage of injection molding products:
1) Mold:
(1) The thickness and quality of the finished product should be uniform.
(2) The cooling system should be designed so that the temperature of each part of the mold cavity should be uniform, and the gating system should make the material flow symmetrical to avoid warping due to different flow directions and shrinkage rates. The branch channels and main channels of difficult-to-form parts should be appropriately thickened. In order to eliminate the density difference, pressure difference and temperature difference in the mold cavity as much as possible.
(3) The transition zone and corners of the part thickness should be smooth enough and have good demoldability, such as increasing the demolding redundancy, improving the polishing of the mold surface, and maintaining the balance of the ejection system.
(4) Exhaust should be good.
(5) Increase the wall thickness or anti-warping direction of the parts, and strengthen the anti-warping ability of the parts through reinforcing ribs.
(6) The strength of the material used in the mold is insufficient.
2. Plastic:
Crystalline plastics are more prone to warpage than amorphous plastics. In addition, crystalline plastics can correct warpage through a crystallization process, in which the degree of crystallinity decreases with the increase of the cooling rate, and the shrinkage rate also decreases.
3. Treatment:
(1) If the injection pressure is too high, the holding time is too long, and the melt temperature is too low, and the melt speed is too fast, the internal stress will increase and warpage will occur.
(2) The mold temperature is too high and the cooling time is too short, resulting in overheating and ejection deformation of the parts during demolding.
(3) Reduce the screw speed and back pressure to reduce the density, thereby limiting the generation of internal stress while maintaining a very small filling amount.
(4) When necessary, the parts that are easy to warp and deform can be soft-molded or returned after demoulding.
Well, let's talk about it today. Thank you for watching. I'll see you next time.
Latest information
On May 20, 2023, Xinyu launched an outdoor expansion activity with the theme of "Cohesion to Win the Future" in Anji Zhuhai. Through the development of the activity, the cohesion and overall centripetal force of the employee group were enhanced, and the positive communication between employees was established., Mutual trust, unity and cooperation, cultivate team awareness, and increase the sense of responsibility of employees. One by one well-designed team building games aroused everyone's strong interest and enthusiasm. In the process of cross-game experience, the team members won one by one with the cooperation. This activity not only enhanced the cohesion between Xinyu employees, but also cultivated a tacit understanding between each other.
2023/9/21, the launching ceremony of the digital supply chain platform of Wujiang Xinyu Precision Mould Co., Ltd. was solemnly held in Suzhou Taihu International Conference Center. Gan Xiangquan, general manager of the company, spoke on behalf of Xinyu Company. Since then, the company has officially taken a big step towards a new model, a new journey and a new future!
Plastic mold design and manufacturing personnel must carefully carry out mold design according to the above basis and requirements provided by customers. When designing molds, the above contents should be specified one by one and expressed in the form of drawings and technical documents. Then let's learn about the detailed operation of the general procedures for plastic mold design and manufacturing!
Any product has its own quality, so does a set of plastic mold design and manufacturing. Some factories can only produce low-quality molds, while others can produce high-quality plastic molds. Then, let's learn about the design and manufacturing process and technological process of plastic molds!
Service Hotline
Address: Qiushe Development Zone, Tongli Town, Wujiang District, Suzhou City, Jiangsu Province
Fax: 86 0512-63376777