Zhejiang Aobang Technology Co., Ltd.
Zhejiang Aobang Technology Co., Ltd.
Contact Us
inner banner

BMC/SMC Molds

BMC/SMC Molded Products

HOT BLOG

CONTACT US

  • No.62 zhidailang, Sha Village, Luoshe Town, Deqing, Huzhou city, Zhejiang, China
  • info@waiwaitree.com
  • +86-15382332967

Ⅰ. Commonly used raw materials for SMC moulds


The commonly used raw materials for SMC moulds are resin, methyl ethyl ketone, accelerator, unsaturated polyester resin, curing agent, accelerator, zero-alkali neutral glass fiber cloth, polyvinyl alcohol 17-99 (release agent), special pigment paste for FRP, styrene (thinner).


Ⅱ. The influence of SMC mould on product precision


1. The effect of material shrinkage


When designing SMC moulds, first consider the shrinkage of the materials used and the difference in shrinkage and deformation of different parts of the product, and take necessary remedial measures.


2. Design of product forming parting surface and cutting edge


The product moulding parting surface is generally set at the parts that require less precision, such as the edge of the product, and try to avoid setting it on the front part of the product, so as not to affect the surface accuracy of the processed product in the future. At the same time, try to use vertical parting instead of horizontal parting, because horizontal parting is more likely to cause thickness and precision control problems; the thickness of the cutting edge should be designed to be small, but the material flow filling should be ensured to reduce the amount of burr processing.


3. Surface roughness of SMC mould products


Generally speaking, SMC products show that the roughness is -3 levels lower than that of the mould surface, which needs to be considered when designing the SMC mould.


4. Design of heating system


The surface temperature of the SMC mould and its uniformity will have a direct impact on the curing degree and uniformity of the product, and the benefits of product curing will directly affect the deformation and surface quality of the product. Therefore, in the design and processing of the SMC mould heating system, the best curing temperature for SMC should be realized, and the temperature difference of the mould surface should be controlled within 3-5℃.


5. Consideration of SMC mould manufacturing and mould durability


The accurate selection and processing of SMC mould materials and the correct design of ejection system, guide system, and core pulling system directly affect the service life and movement accuracy of the mould, and to a certain extent also affect the fluctuation of the accuracy of the moulded product.

Application

  • Automotive
    Automotive

    Sheet molding compound (SMC) mold can be used to manufacturing parts of cars, buses, trucks, transport and special vehicles.

    Learn More >
  • Energy/Power Generation
    Energy/Power Generation

    BMC and SMC are used to make xenon lamp HID luminaires because they can withstand the high temperatures that luminaires can withstand.

    Learn More >
  • New Energy Vehicle
    New Energy Vehicle

    Sheet molding compound (SMC) mold can be used to manufacturing parts of new energy vehicle.

    Learn More >
  • Transportation Equipment
    Transportation Equipment

    BMC and SMC are used to make outdoor large-scale transportation equipment bearing housing, bearing cover, sealing ring, non-oxidizing.

    Learn More >
  • High-speed Rail
    High-speed Rail

    The bulk molding compound (BMC) and sheet molding compound (SMC) are different from these materials.

    Learn More >
  • Building Materials
    Building Materials

    Our BMC ceiling and wallboard materials have been developed for more than ten years, and the technology is constantly being updated.

    Learn More >
  • Ship
    Ship

    Sheet molding compound and bulk molding compound are widely used for Ship. Click here for more info about the SMC & BMC material.

    Learn More >
  • Electrical Appliances
    Electrical Appliances

    BMC can be used for household appliance, such as frying pan lids and brackets, as well as kitchen component materials such as oven endplates.

    Learn More >
  • Motor
    Motor

    BMC plastic motor mold replaces the traditional iron shell and aluminum products, reduces the process, stronger sealing, higher safety factor, less noise.

    Learn More >
  • High And Low Voltage Electrical Switch
    High And Low Voltage Electrical Switch

    BMC & SMC is used to make parts with resistance to electrical marks greater than 600 minutes and arc resistance greater than 180 seconds.

    Learn More >
  • Outdoor Supplies
    Outdoor Supplies

    The fuel cell industry uses a large number of thermoset materials to make two plates. BMC and SMC are also suitable for use in solar tile and wind turbines.

    Learn More >

GET IN TOUCH