Auto Radiator Tank Plastic Mould


Auto Radiator Tank Plastic Mould we made before   […]

Auto Radiator Tank Plastic Mould we made before


Features of auto radiator tank sample(provided by our customer)

*complex structure, outer size: 350*80*60mm

*several side tubes to connect the car radiator 

*several side holes to install the radiator tank

*Requirement on the surface: gloss and neat, without any air hole and sink mark


Points need to pay attention to of auto radiator tank mould

The raw material of the auto radiator tank product is PA66+30GF, so the biggest problem is product is easily out of shape. So every step should coordinate closely and carefully.

1. Moldflow

Using Moldflow to calculate the deformation and gate location, and the gate diameter is commonly 4-6mm. According to the deformation and the actual product size, combining our own experience on water tank mould, to get the best numerical value to produce a perfect mould.



2. Modify the deformation

Generally for shorting the design period, one person drawing the product, and another designing the mould. Recording the data of Moldflow, which is convenient for later modification. Using Moldflow data plus our own experience to modify the 3D design. 


3. Design mould structure

*the location of parting line should be designed not to influence the mould modification

*designing the cooling way as much as possible 

*there should be small insert in the main part, which can be changed easily


4. Mould machining

*machining the mould with precision data

*different parts are machined in a different way


5. Mould trial

*recording the connect way of water line every time

*recording the parameter of the machine setting

*making sure the sample is clean and complete

T1 for auto radiator tank mould:


6. Mould information

*Raw material: PA66+30GF

*Color: black with gloss polish

*Mould size: 780*600*385mm

*Mould weight: 655KG

*Cavity steel: P20

*Mould base: 45#

*Cavity: 1+1

*Core pulling: oil cylinder system

*Ejector system: ejector pin

*Lead time: 40 days

*Machine suitable: 380T


7. The reason for product deformation

*the wall thickness of every part is not even

*the cooling time is not enough

*the injection speed is too fast

*there is stree in the corner part

*deformation when ejecting without cooling enough

*influenced by mould temperature in injection


8. The solution to avoid product deformation

*adjusting the machine parameters which to get a perfect temperature, speed and time

*design the mould considering the actual factors to achieve less out of shape

*using the following gauge after picking the product from machine to avoid the deformation(this one is frequently used in producing auto part moulds, especially for the large size auto product)




If you have any mould project on auto radiator tank, kindly contact Shine to get the quotation.

Email: [email protected]

Mobile: +86 157 5766 8880


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