Those processes in injection mould


Plastic injection mould The key is a moulding mould tha […]

Plastic injection mould

The key is a moulding mould that is more widely used in the production of thermosetting plastics. The production equipment that matches the plastic injection mould is a plastic injection moulding machine. The plastic is first melted when heated in the heating barrel of the injection machine. Then, driven by the extruder screw or plunger pump of the injection machine, the injection system of the injection machine nozzle and the mould enters the mould concave mould, the plastic is cooled and hardened into the bottom, and the mould is obtained to obtain the craftwork. Its structure is generally composed of moulding components, pouring system software, guiding components, release organization, temperature control system software, emission system, support point components and other parts. Generally, the plastic mould steel control module is used as the raw material for production and production. The key materials are carbon steel, carbon tool steel, alloy structural steel, and front steel. Injection moulding production and processing methods are generally only applicable to the production of thermoplastics crafts. Plastic crafts produced by the injection moulding process are very common. From daily necessities to various complicated machinery and equipment, household appliances, and travel tool parts are all It is formed by injection mould, which is a widely used production and processing method in the production of plastic crafts.

Plastic compression mould

Contains two types of structural moulds: reduction moulding and betting moulding. They are a type of mould that is key for forming thermosetting plastics. The matching machine is a working pressure forming machine. The shrinking moulding method is based on the characteristics of the plastic. The mould is heated to the moulding temperature (generally between 103 ° and 108 °), and then the compression moulding powder that has been measured and measured is placed in the mould cavity and the feeding chamber. Under the pressure effect, it becomes soft and sticky, and after a certain period of time, it becomes dry and fixed, and it becomes a handicraft. The difference between betting moulding and shrink moulding is that there is an independent feeding chamber. The mould is closed before moulding. The plastic is heated in the feeding chamber in a viscous flow state. It is adjusted into the die cavity of the mould under the effect of working pressure to harden the bottom. forming. Reduced mould is also used to mould some unique thermosetting plastics such as non-melting thermosetting plastics (such as polyadditive refrigerant butadiene) hair embryos (cold compression moulding), resin lenses with high electronic and optical characteristics, and mild polyurethane hair Sodium cyanide methyl cellulose car steering wheel and so on. The key of the compression mould is composed of a concave mould, a feeding cavity, a guiding organization, a release component, and a heating system software. Bet moulds are commonly used to encapsulate electrical components. The materials commonly used in the production of compression moulds are basically the same as those of injection moulds.

Plastic extrusion die

A type of mould used for the production of continuous-looking plastic products, also known as extrusion moulding engines, is commonly used in the production of pipes, rods, wire drawing, sheet metal, plastic films, cable and wire coatings, and PVC profiles. machining. The matching production line equipment between the two is a plastic extruder. The principle is that solid plastic is melted and melted under the standard of heating and extruder screw rotation and pressure, and is made according to the special appearance of the die. Continuous plastic crafts with the same cross-section as the die. The key raw materials for its production are carbon steel, aluminum alloy special tools, etc. Some extrusion moulds will be covered with metal composite materials such as diamonds on components that must be resistant to wear. Extrusion processing technology is generally only available in the production of thermosetting plastics and plastic products, and its structure type is significantly different from injection processing moulds and compression moulds.

Plastic blow mould

It is a mould used for moulding hollow crafts of plastic containers (such as various packaging materials such as mineral water bottles and daily chemical products). The blow moulding method is based on the principle of processing technology. Extrusion blow moulding, hollow moulding and injection blow moulding are key. Plastic hollow moulding, injection widening blow moulding hollow moulding (alias "injection blow blowing"), double-layer blow moulding hollow moulding, plastic sheet blow moulding hollow moulding, etc. The machinery and equipment matched for hollow handicraft blow moulding are generally called plastic blow moulding machines, and blow moulding is only applicable to the production of thermoplastics. The structure of the blow mould is relatively simple, and the common raw materials are mostly manufactured with less carbon.

Plastic suction mould

To use plastic plates and plastic sheets as raw materials to mould some simpler plastic crafts, the principle is to use vacuum packaging blooming or air compression moulding to make plastic plates and sheets fixed on the cavity or mould base, Deformed under the condition of heating and softening, and it is stuck on the concave mould of the mould to obtain the products to be moulded, which is suitable for the production and manufacturing of some household articles, foods, and small toys. Due to the low working pressure during moulding, the raw materials of the mould are mostly made of aluminum casting or non-metallic materials, and the structure is relatively simple.

High foaming polystyrene moulding mould

Is a mould that uses expandable polyethylene (bead material composed of polyethylene and foam plastic) to form a variety of foam plastic packaging products in various shapes. The principle is that polyethylene can be steam-moulded in the mould, including simple hand-made moulds and four-column hydraulic press straight-through foam plastic moulds. The key is to produce packaging products at the level of industrial supplies. The raw materials for the production of such moulds are aluminum casting, stainless steel plates, brass, etc.

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