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The advantages and disadvantages of plastic fuel tanks
Plastic with a small proportion, forming easy, does not rust and so on. Use it to manufacture the tank, its shape large degree of freedom, can make full use of the space inside a car, and the car crash when it is disposed to the most secure place. In addition, plastic fuel tanks less prone to fires and explosions in the friction, impact. Furthermore, the low cost plastic fuel tanks, equipment costs lower than the metal tank. About the cost of mold, one standard metal stamping die is average of 23 to 92.4 million (yen), and the plastic mold fee of only 1.5 to 15 million (yen). Although the plastic tank insert costly, but the total cost is still cheaper than the metal tank. Any processing of large, complex shape of the fuel tank, with plastic to make is quite favorable.
Other aspects of the advantages are: secondary processing work less; the modeling large degree of freedom, can be set in the space of the tank and made larger; because plastic does not rust, so no need to worry as the metal tank corrosion caused leak caused by pollution; do not worry about taking off the wheel thrown stones and broke tank; can eliminate noise.
The downside is likely to gasoline leaking through the plastic tank wall. This can be resolved with an epoxy coating. Although the heat distortion temperature of the plastic is lower than metal, but by car conditions to measure, or fully able to meet the requirements.
Comparison of plastic fuel tanks molding methods are: centrifugal molding method (is retooling) and blow molding. In addition, also have casting, injection molding and vacuum forming method. The rotational molding is the best choice.
Other aspects of the advantages are: secondary processing work less; the modeling large degree of freedom, can be set in the space of the tank and made larger; because plastic does not rust, so no need to worry as the metal tank corrosion caused leak caused by pollution; do not worry about taking off the wheel thrown stones and broke tank; can eliminate noise.
The downside is likely to gasoline leaking through the plastic tank wall. This can be resolved with an epoxy coating. Although the heat distortion temperature of the plastic is lower than metal, but by car conditions to measure, or fully able to meet the requirements.
Comparison of plastic fuel tanks molding methods are: centrifugal molding method (is retooling) and blow molding. In addition, also have casting, injection molding and vacuum forming method. The rotational molding is the best choice.
