Sales & Support: Request A Quote
Home ProductsAutomotive Moulding

Gas-assisted Injection Mould, details contact Jacky skype: df mold

Gas-assisted Injection Mould, details contact Jacky skype: df mold

    • Gas-assisted Injection Mould, details contact Jacky  skype: df mold
    • Gas-assisted Injection Mould, details contact Jacky  skype: df mold
    • Gas-assisted Injection Mould, details contact Jacky  skype: df mold
  • Gas-assisted Injection Mould, details contact Jacky  skype: df mold

    Product Details:

    Place of Origin: Dongguan City China
    Brand Name: DF MOLD
    Certification: ISO9001
    Model Number: OEM

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 SET
    Price: 10000 USD
    Packaging Details: Wooden Crate For Mold
    Delivery Time: 6-10 Weeks
    Payment Terms: T/T, L/C,Western Union
    Supply Ability: 250SETS/Year
    Contact Now
    Detailed Product Description

     Dengfeng mold provide Gas assisted molding in from 2010 years. Now we can design Gas assisted mold as client's requirement. The two main control techniques for gas injection are volume control and pressure control.

    Details contact: Jacky Qiu Skype: df mold, Phone:00861533665622

    Gas volume control
    A preset volume of gas is injected and the gas pressure decays during the packing phase. In the case of volume control, the initial charge of gas is fixed at a particular volume for a set pressure. The gas is injected into the polymer melt by means of a gas compression ram. The gas pressure then decays as the gas expands into the melt and is held during the packing phase.
    During the holding (cooling) phase the gas maintains pressure on the polymer and in so doing packs (compresses) the solidifying polymer, compensating for volumetric shrinkage. The gas pressure also forces the outer polymer skin against the mold walls maintaining good thermal contact and ensuring that cooling periods are kept to a minimum.
    Gas pressure control
    Gas pressure is controlled during the injection cycle and can be stepped or profiled. In the case of pressure control, it is the pressure of the gas which is being controlled during the injection cycle, not the volume. This is based on the assumption that the gas pressure can affect the rate of movement of gas/polymer flow fronts. Gas pressure can be stepped or profiled during both the injection and packing phases. 



    AAA grade credit enterprise, ISO9001, ISO14001, SGS


    Japanese standard of QC management &  Euramerican standards


    Designing the mould, CNC processing and other tooling, assemble all mould parts

    OEM & ODM service     


    Design software                 

    UG, PRO-E, CAD, CAXA, etc

    Mould base Standard      

    LKM , HASCO , DME, etc

    Moulds’ steel                     

    NAK80, S136(H), 2738, 718&738 and P20 etc

    hardness of steel:              

    15--60 HRC

    cav/core material               

    2738,2343,DIN-1,S130,2344,738H,718,8407,S136,NAK80,P20 etc





    Mould life                          

    500,000-1,000,000 shots as you required

    Final products’ materials  

    ABS, PP, PE, POM, PA6(66)+GF, PC, PMMA HIPS, GPPS etc

    Final Products’ colors       

    Any color as your required

    Lead Time                         

    25-50 workdays based on the different products

    Relevant requirements reachable 

    ROHS, UL, or as requested


    Wooden case package or follow customers' requirement

    Price Terms                      

    FOB Shanghai Port, China

    Payment term                    

    T/T, L/C at sight

    Details contact: Jacky Qiu Skype: df mold, Phone:00861533665622

    The gas assist injection moulding theories:

    • After mould closing, the plastic is injected to fill or nearly fill the mould cavity.
    • After a selected time delay, first phase is gas injected.
    • Second phase gas penetration to compensate for volumetric shrinkage of the plastic as it cools.
    • A uniform gas pressure is applied throughout the plastic.
    • Gas is exhausted to atmosphere or for recovery before mould opens.
    • Plastic refill commences after the nozzle valve is closed or after the plastic feed gate has solidified.

    Gas Assist injection moulding typical applications:

    • The gas flows into the path of least resistance in the thicker sections where the plastic interior is still in a molten state.
    • Gas Assist injection moulding is normally applicable for components in which there are thick and thin sections.

    Gas Assist injection moulding advantages

    • Elimination of sink marks.
    • Avoidance of plastic packing from the moulding machine.
    • Reduced in-mould pressures by up to 60%, and therefore reduced press lock forces enabling larger
    • The use of the gas injection moulding as a means of transmitting pressure uniformly throughout the moulding.
    • mouldings on much smaller machines.
    • Reduced power consumption.
    • Reduced moulded in stress, and therefore improved dimensional stability with no distortion.


    Contact Details
    Dengfeng Mold (Hongkong) Co., Limited

    Contact Person: Mr. Jacky Qiu

    Tel: 86-150-11939995

    Fax: 86-0769-85337639

    Send your inquiry directly to us (0 / 3000)