The process begins by heating the stock material. It is then loaded into the container in the press. A dummy block is placed behind it where the ram then presses on the material to push it out of the die. Afterward the extrusion is stretched in order to straighten it. If better properties are required [...]
Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section. […]
Blow molding is a multibillion dollar business. In the late 1980s annual worldwide consumption of plastic resin by blow molding processes was about ten billion pounds. […]
There are six kinds of PET Blow Molding Machineries:Single Stage Blow Molding Machine Two Stage Blow Molding Machine Integrated Two Stage Blow Molding Machine PET Blow Molding Machines Automatic PET blow molding machine Semi Automatic PET blow molding machine […]
Coextrusion Blow Molding of Large PartsCoextrusion is used extensively in small bottles and containers, but increasingly also for large blow molded parts (18.92 liters or 5 gallons and larger). […]
With the commercial introduction of containers, stretch blow molding became a common term in the blow molding industry. Stretch blow molding is the method of producing a plastic container from a preform or parison that is stretched in both the hoop direction and the axial direction when the preform is blown into its desired container [...]
The injection molding phase consists of injection molding a thermoplastic material into a hollow, tube-shaped article called a preform. The preform is transferred on a metal shank, called the core rod, into a blow mold. […]
In extrusion blow molding (EBM), plastic is melted and extruded into a hollow tube (a parison). Blow molding is the forming of a hollow object by “blowing” a thermoplastic molten tube called a parison in the shape of a mold cavity. […]
The process of using air to blow hot material was first used by the Syrians. The method is attributed to Syrian glass workers in the first century BC, who realized that a glass bulb on the end of a blow pipe could be shaped into many useful hollow forms, with handles and feet and decorated [...]
Blow molding, also known as blow forming, is a manufacturing process by which hollow plastic parts are formed. It is a process used to produce hollow objects from thermoplastic.In general, there are three main types of blow molding: extrusion blow molding, injection blow molding, and stretch blow molding. […]