What products are manufactured using blow moulding?

What products are manufactured using blow moulding?

Injection blow moulding is used for the Production of hollow objects in large quantities. The main applications are bottles, jars and other containers. The Injection blow moulding process produces bottles of superior visual and dimensional quality compared to extrusion blow moulding.

What kind of plastic are blow molds made of?

Low density Polyethylene (LDPE), High Density Polyethylene (HDPE), Polypropylene (PP), Polycarbonate (PC), Polystyrene (PS), Co-polyester, Polyethylene Terephthalate (PET), Polyvinyl Chloride (PVC), Nylon, Acrylonitrile Butadiene Styrene (ABS) are the main resins utilized with blow molding.

What is plastic blow molding process?

Blow molding is the forming of a hollow object by inflating or blowing a thermoplastic molten tube called a “parison” in the shape of a mold cavity. The process consists of extruding or “dropping” a parison on which female mold halves are closed. The female mold halves contain the shape of the product to be produced.

What is blow molding used for?

Blow molding (or moulding) is a manufacturing process for forming and joining together hollow plastic parts. It is also used for forming glass bottles or other hollow shapes.

Are plastic bottles blow molded?

Blow molding is an important industrial process for making one-piece hollow plastic parts with thin walls, like plastic soda bottles, or water cans, or shampoo bottles. We are hence exposed to blow molded products throughout our daily lives.

How is a parison made?

…a thermoplastic hollow tube, the parison, is formed by injection molding or extrusion. In heated form, the tube is sealed at one end and then blown up like a balloon. The expansion is carried out in a split mold with a cold surface; as the thermoplastic encounters the surface, it…

How is blow Moulding done step by step?

The process includes the following steps:

  1. Plastic pellets are fed into the machine via a hopper or screw depending on the machine.
  2. Plastic melts and then gets shaped into a parison, which looks like a tube with a hole at one end.
  3. Clamped in place inside the mold.
  4. Compressed air inflates the parison.

How do plastic molds work?

The molding machine heats the plastic until it is liquid. The nozzle of the injection molding machine then injects the melted plastic into the mold (injection pressure). The cavity of the mold is now filled with the plastic liquid. This will then cool down to form a solid product.

What are the advantages of blow Moulding?

II. Blow molding has 6 advantages.

  • A revolution form of technology.
  • It can produce variable products.
  • Low cost.
  • It allows multiple production methods.
  • It helps promote productivity.
  • Blow molding offers benefits of automation.
  • It highly depends on petroleum.
  • It impacts greatly to the environment.