In 2023, after our company purchased High-Speed-CNC of YASDA, a mold factory in the UAE placed an order with us. The order was 13 sets of multi-cavity ultra precision mould bases. The customer has multiple factories in India and Dubai, and has high precision requirements for the mold. We sent reply drawings to customers for each set of mould bases to confirm and negotiate processing requirements such as technology, tolerances, and accessories. Although it was our first collaboration, the process of adaptation was relatively smooth and we were able to quickly cooperate and solve any problems encountered. After nearly two months, all products have been shipped safely.

This visit is the first time that the client has visited our company after cooperating with us. The main purpose is to inspect our equipment and evaluate the possibility of increasing cooperation in the future. The customer mainly visited the steel milling and CNC workshop, and highly appreciated our YASDA brand high-speed CNC machine. Our company also stated that this machine produces most of the customer's products. In addition, the customer also stated that the more than 10 sets of mold blanks received earlier have been put into use and the quality is very good. We also discussed the issue of steel being prone to rusting and mold base components. Our company will put more effort into vacuum packaging and anti rust oil application, and the accessories will also be inspected before being installed on the mold base. The customer is very satisfied with this trip and expressed that they will deepen cooperation with our company.



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Double Injection mold base, or Two-color mold base, or Bi-color mold base. In the dual color injection molding process, this type of mold is designed to sequentially or simultaneously inject two different colored plastic materials into a single mold, thereby producing plastic products with dual or multi-color appearances.





Characteristic

1. Multi cavity design: usually with two or more injection cavities for simultaneous or continuous injection of plastic of different colors or materials. Usually composed of multiple layers of structure. Each layer has different materials or colors, and through the combination of mold bases and injection molding process, the multi color or multi material effect of the product can be achieved. The multi-layer structure enables the dual color non-standard mold base to have a wider range of applications, which can meet the color and material requirements of different products.



2. Complex structure: Due to the need to handle injection molding and bonding of two materials, the structure of the mold base is relatively complex, including rotating mechanisms, sliders, ejection systems, etc. Some parts of the double injection non-standard mold base may have adjustable structures. By adjusting the position or parameters of these parts, fine-tuning of product size, shape, and color can be achieved. The adjustable structure increases the flexibility and adaptability of the mold base, which can meet the personalized needs of different customers.



3. High precision requirements: In order to ensure the appearance quality and dimensional accuracy of dual color products, the manufacturing and installation of the mold base need to meet high precision standards. The double injection non-standard mold base emphasizes precision fit in structural design. The various components of the mold base need to be precisely matched to ensure the stability and accuracy of the mold during use. Precision fitting can reduce friction and wear of the mold during use, improve the service life and manufacturing accuracy of the mold.





Application of mould base

1. Consumer goods: such as phone cases, electronic product accessories, toys, etc., which usually require attractive appearance and feel.



2. Automotive components: Automotive interiors, buttons, switches, etc., two-color injection molding can provide better visual effects and tactile experience.



3. Medical devices: Some medical devices and components also use two-color injection molding technology to improve product recognition and usage safety.





Points for attention

When designing and manufacturing a "Double Injection mold base", special attention should be paid to the following points:



1. Material selection: The two injection molding materials need to have good compatibility and bonding to ensure smooth flow during the injection molding process and the final quality of the product. And it is usually made of high-strength materials to ensure the stability and durability of the mold during use. High strength materials can withstand greater pressure and stress, while also possessing good wear and corrosion resistance. This makes the two-color non-standard mold base suitable for various complex production environments and process requirements



2. Temperature control: During the double color injection molding process, it is necessary to accurately control the temperature of the mold and injection molding machine to ensure the injection quality of different materials.



3. Mold maintenance: Due to its complex structure, the maintenance and upkeep of molds need to be more meticulous and frequent to ensure their long-term performance and stability.



In summary, the "Double Injection Mold Base" is a key component in the double injection molding process, and its design and manufacturing have a significant impact on the final quality and appearance of the product. In practical applications, it is necessary to choose the appropriate mold structure and injection molding process based on specific product requirements and production conditions.

When designing the mold base, it is necessary to pay attention to multiple aspects to ensure that the structural strength, accuracy, maintainability, and safety of the mold base can meet the requirements. Here are some key design considerations:



1、 Structural Strength and Material Selection

Structural strength: The mold base should be able to withstand loads under various working conditions, including self weight, operational loads, etc. Its structural strength must meet relevant standards and specifications to ensure the stability and reliability of the mold during use.

Material selection: The material of the mold base should have sufficient strength and rigidity to withstand corrosion, wear, and impact in the working environment. The commonly used materials include steel, iron, aluminum alloy, etc., and the specific selection needs to be determined according to the usage conditions and requirements of the mold. Common mold steels include S50C, P20, S136H, 718H, XPM, 4Cr13H, etc



2、 Dimensions and Geometric Accuracy

Dimensional accuracy: The dimensions and geometric accuracy of the mold base should meet the design requirements to ensure the assembly accuracy and working performance of the mold components. This includes the overall dimensions of the mold base, the relative positional accuracy of each component, and the surface roughness of the machined surface.

Standardization: Mold base design should use standardized and serialized components as much as possible to facilitate manufacturing, assembly, and maintenance.



3、 Mold installation and commissioning

Installation convenience: The mold base should be designed with a convenient and fast installation and debugging method, so that the mold can be quickly adjusted and adapted to work requirements. This includes reasonable installation interfaces, positioning devices, and debugging mechanisms.

Debugging space: When designing the mold base, the space and tools required for mold debugging should be considered to ensure smooth debugging work.





4、 Mold stability and protection

Stability: The mold base should have a stable structure to ensure the stability and reliability of the mold during operation. This includes reasonable support structures, fastening devices, and limit mechanisms.

Protective measures: The mold base should have necessary protective measures, such as earthquake resistance, corrosion resistance, wear resistance, etc., to extend the service life of the mold. At the same time, the convenience of maintenance and upkeep of the mold should also be considered.



5、 Attachments and Detail Design

Attachment design: The mold base design should consider various accessories required for the mold, such as guide devices, ejector devices, cooling systems, etc., and ensure their good operating condition and reliability.

Detail handling: In the design of the mold base, attention should also be paid to some details, such as the selection and arrangement of cooling water nozzles, the fixing and identification of nameplates, and the convenience of mold lifting and transportation.



6、 Security

Safety regulations: The design of the mold base should comply with relevant safety regulations and take appropriate measures to ensure the personal safety of the operator. This includes setting up safety protection devices, avoiding sharp edges and protrusions, etc.

Emergency measures: In the design of the mold base, possible emergency situations should also be considered, and corresponding emergency measures and rescue plans should be formulated.



In summary, during the design phase of the mold base, attention should be paid to multiple aspects such as structural strength, material selection, size and geometric accuracy, mold installation and debugging, mold stability and protection, accessory and detail design, and safety. By considering these factors comprehensively, a mold base that meets the requirements can be designed, providing strong support for the production and use of molds.

IIn August 2024, the relevant person in charge of TK Mold visited our company for exchange and officially began long-term cooperation with us. Our mold base process fully meets the mold types and requirements of TK Mold. The quality requirements for the mold base purchased by TK Mold are relatively high, making it an excellent partner for us.




TTK Mold is a globally leading one-stop injection molding solution provider, mainly committed to leading the injection molding production of smartphones, personal care, and smart home products, packaging medical, personal care, and precision electronics high-precision, multi cavity, high-performance molds, as well as the research and development, design, and manufacturing of automotive molds and other large and complex molds. TK currently has five major production bases located in Shenzhen, Suzhou, Huizhou in China and Vietnam and Germany overseas.









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The hardness and wear resistance of mold steel are closely related. Generally speaking, the higher the hardness, the better the wear resistance. High hardness makes the surface of mold steel more resistant to friction and wear. But hardness is not the only factor, the material's organizational structure and other factors can also affect wear resistance. However, high hardness can usually greatly improve the wear resistance of mold steel.