Plastic parts are a large part of the child safety seat, the quality of the plastic parts determines whether they will break in the event of an accident. Child seat plastic mold in the process, mainly divided into injection molding and blow molding two kinds of processes, these two industries are how? Let's take a look together.
1, material
Currently on the market circulation of safety seats are mainly divided into 2 kinds.
Injection molding: referred to as PP
Blow molding: HDPE5502 for short
2, structure
Injection molding.
(1) injection molding parts structure is more complex
(2)Applicable to make products with a more complex structure
(3) due to injection molding parts only a single wall thickness, the strength is generally not enough, so generally add iron parts in the injection molding parts to increase the strength of the seat
Blow molding.
(1)The structure of blow-molded parts is relatively simple
(2)Applicable to simple structure products
(3) blow molded parts for double wall thickness, strength is relatively strong, can withstand the strength of the seat in the impact
3、Process
Injection molding: injection molding is the use of an injection molding machine and mold, the plastic melt pressed into the mold molding
Blow molding: blow molding is an extruder to extrude the plastic melt into a hollow and then put on the mold, using compressed air to expand the hollow melt molding.
4、Advantages and disadvantages
Injection molding.
Advantages: (1) beautiful surface
(2) seat function is more
Disadvantages: (1) the seat is relatively bulky
(2) complex structure
(3) the cost is relatively high
Blow molding.
Advantages: (1) simple structure
(2) the seat is relatively light
(3) High-cost performance
(4) plastic is hollow, energy absorption effect is better
Disadvantages: (1) the function is relatively simple
(2) surface appearance is not very beautiful, the product grade seems to fall now low.
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