Which strength is better in hollow blow molding or injection molding of safety seats

Compared with the traditional blow molding and injection molding processes, the rotational molding process has the following advantages: 1. Cost advantage: in the rotational molding process, only the strength of the frame is required to be sufficient to support the weight of the material, the mold and the frame itself, so as to prevent the closing force of material leakage; And in the whole molding process, the material is almost not affected by any external force except for the action of natural gravity, so as to fully possess the advantages of convenient machining and manufacturing, short cycle and low cost.

2. Quality advantage. The products of the rotational molding process are more stable in terms of product quality and structure due to the absence of internal stress during the whole production process. 3. Flexible and changeable advantages.

The machine mold of rotational molding process is convenient to manufacture and inexpensive, so it is especially suitable for multi-variety and small-batch production in new product development. 4. Personalized design advantages. The product in the rotational molding process is highly volatile....

In the processing process of plastic molds for child seats, they are mainly divided into two processes: injection molding and blow molding.

What is Blow Molding? Blow molding is to put the extruded molten plastic blank in the mold, blow it with the help of compressed air and stick it to the cavity wall, and then cool and harden it into plastic parts.

What is Injection Molding? Injection molding is to use the screw or plunger of the injection machine to make the melt in the barrel, through the injection machine nozzle, the pouring system of the mold, injected into the cavity and solidified. Therefore, the compressive resistance and toughness of the injection molded mold are better.

In other words: blow-molded products are hollow, injection-molded products are solid. The injection molded mold has a delicate texture, precise size, better compression resistance and toughness.

Injection molding is a method of molding and production of industrial products, which is generally to pressurize, inject, cool and detach the molten raw materials, and finally make semi-finished products with a certain shape and shape. The injection molding process is generally injection + pressure, while blow molding is injection + blowing, injection molding is generally a solid core, and blow molding is an empty coreTherefore, injection molding is generally better than blow molding for safety seats. Let's talk about the advantages and disadvantages of injection and blow molded car seats in detail:

The advantages of injection molded safety seats are: the safety seats made of injection molding have more functions, are relatively high in comfort, and have stronger pressure and impact resistance. Although injection molded seats have more functions, the seats are bulky and not so easy to install, disassemble and fold.

The structure of the blow-molded safety seat is simple, so the seat is also relatively lightweight, easy to operate, and the cost performance is not high. However, the function of the seat is relatively small, the crash resistance is poor, and the appearance of the product grade looks relatively low-grade and not so good-looking.

The primary purpose of child seats is safety, so relatively speaking, the injection quality of car seats is relatively good. Although ** is also higher, it is safer and more functional, so it is recommended that parents choose injection molded safety seats.

Summary. Blow molding and injection molding are both plastic parts, plastic parts are a large part of the child safety seat, the quality of plastic parts determines whether it will break in the event of an accident. The steel skeleton is made of alloy steel as the core skeleton of the safety seat, which has the advantages of high strength, bending resistance and compressive resistance.

Blow molding and injection molding are both plastic parts, plastic parts are a large part of the child safety seat, and the quality of plastic parts determines whether the potato shed will break in the event of an accident. The steel skeleton is made of alloy steel as the core skeleton of the safety seat, which has the advantages of high strength, bending resistance and compressive performance of the hand round.

Blow molding and injection molding skeleton, both of which are plastic skeletons, the hardness of plastic skeletons is not high, and it is easy to age after a long period of use, so the steel skeleton makes up for the shortcomings in this regard. In the car, there is no welding, riveting and quietly integrated forming of the infiltrating steel skeleton, and the safety performance is the highest.

Therefore, it is recommended that when you buy a safety seat, you should choose a seat frame that combines an integrated steel frame and an integrated injection molding. Not only is the seat spine pin more resistant to pressure and impact, but in addition, this kind of skeleton is more resistant to aging, and the safety factor of suppression will be higher with the same service life.