Plastic parts is a big part of child safety seat, the quality of plastic parts determines whether it will break in the event of an accident.Children's seat plastic mold in the processing, mainly divided into injection molding and blow molding Two kinds of craft, what kind of industry are these two kinds respectively? Let's take a look.
1, material
Currently available on the market safety seats are divided into two types:
Injection: PP for short
Blow: Short HDPE5502
2, the structure
Injection:
1) injection molding structure is more complicated
(2) For more complex structure of the product
(3) As the injection molding only single-wall thickness, strength is generally not enough, it is generally increased in the injection molded pieces of iron to increase the seat strength
Blow:
(1) blow molding structure is relatively simple
(2) Suitable for simple structure products
(3) blown plastic double wall thickness, strong strength, can withstand the strength of the seat in the impact
3, technology
Injection: Injection is the use of injection molding machines and molds, the plastic melt pressure into the mold forming
Blow molding: Blow molding is the extruder to extrude the plastic melt into a hollow and then put it on the mold. The compressed air is used to open the hollow melt.
4, advantages and disadvantages
Injection:
Advantages: (1) beautiful appearance
(2) seats more features
Disadvantages: (1) seat more bulky
(2) Complex structure
(3) the cost is high
Blow:
Advantages: (1) simple structure
(2) seat is relatively light
(3) cost-effective
(4) plastic is hollow, energy absorption effect is better
Disadvantages: (1) function is relatively simple
(2) the appearance of the surface is not very beautiful, product quality seems to fall low.