China Electronic Mould & Plastic Enclosure with 25 year experience
FBELE is a plastic shell and injection molding shell manufacturer, specializing in the processing of ABS shell. It has a complete range of products, which can be based on different shape thickness, thickness width and shape range The products are widely used in automobiles and medical devices. Welcome to consult. Our products are sold at home and abroad
- plastic injection mould
- die-casting mold
- Extrusion die mold
- Blow molding
What is Mold
Mold, various molds and tools used in industrial production to obtain required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the object shape by changing the physical state of the formed material. It is known as the “mother of industry”.
A tool for making a blank into a workpiece with a specific shape and size under the action of an external force. It is widely used in blanking, die forging, cold heading, extrusion, pressing of powder metallurgy parts, pressure casting, and molding or injection molding of engineering plastics, rubber, ceramics and other products. The die has a specific contour or cavity shape, and the blank can be separated (blanking) according to the contour shape by using the contour shape with a cutting edge. The corresponding solid shape can be obtained by using the inner cavity shape. The mold generally includes two parts: moving mold and fixed mold (or punch and concave mold), which can be divided and combined. Take out the workpiece when separating, and inject the blank into the mold cavity when closing. Mold is a precision tool with complex shape, which can bear the expansion force of blank. It has high requirements for structural strength, stiffness, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important symbols of mechanical manufacturing level.
ABS Plastic Custom Electrical Junction Box and Waterproof Control Box Case as GPS Tracker Enclosure
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What Mould & Plastic Enclosure Does FBELE Produce
With the help of the heating device, the plastic in the pouring system will not solidify and will not be demoulded with the product, so it is also called runner free mold
The steel plate used for the internal mold needs heat treatment after purchase, such as quenching and carburizing, in order to meet the requirements of use. Such an injection mold is called a hard mold
The steel used for the internal mold can meet the requirements without heat treatment after purchase. Such injection molding is called soft mold
Firstly, the plastic is added into the heating material cylinder of the injection machine. The plastic is heated and melted. Driven by the screw or plunger of the injection machine, it enters the mold cavity through the nozzle and mold pouring system, and hardens and shapes into injection molded products due to physical and chemical effects
Classification of moulds
According to different materials
Metal molds, plastic molds, and their special molds.
Hardware molds are divided into: stamping molds (such as blanking molds, bending molds, drawing molds, hole turning molds, shrinkage molds, undulating molds, bulging molds, plastic molds, etc.), forging molds (such as die forging molds, upsetting molds, etc.), extrusion molds, extrusion molds, die casting molds, forging molds, etc;
Nonmetallic molds are divided into plastic molds, inorganic nonmetallic molds, sand molds, vacuum molds and paraffin molds.
Among them, with the rapid development of polymer plastics, plastic molds are closely related to people’s life. Plastic molds can generally be divided into injection molding molds, extrusion molding molds, gas assisted molding molds, etc.
Forming classification of mold
(1) Injection molding
Firstly, the plastic is added into the heating cylinder of the injection machine. The plastic is heated and melted. Driven by the screw or plunger of the injection machine, it enters the mold cavity through the nozzle and mold pouring system, and hardens and shapes into injection molded products due to physical and chemical effects. Injection molding consists of injection, pressure maintaining (cooling) and plastic part demoulding processes, so injection molding has the characteristics of periodicity. Thermoplastic injection molding has the advantages of short molding cycle, high production efficiency, small wear of molten material on the mold, and can form large quantities of plastic parts with complex shapes, clear surface patterns and marks, and high dimensional accuracy; However, for plastic parts with large wall thickness changes, it is difficult to avoid forming defects. Anisotropy of plastic parts is also one of the quality problems. All possible measures should be taken to minimize it.
(2) Compression molding
Commonly known as press molding, it is one of the earliest methods to form plastic parts. Compression molding is to directly add the plastic into the open mold cavity with a certain temperature, and then close the mold. Under the action of heat and pressure, the plastic melts into a flowing state. Due to physical and chemical effects, the plastic hardens into a plastic part with a certain shape and size that remains unchanged at room temperature. Compression molding is mainly used for molding thermosetting plastics, such as phenolic molding powder, urea formaldehyde and melamine formaldehyde molding powder, glass fiber reinforced phenolic plastic, epoxy resin, DAP resin, silicone resin, polyimide, etc. it can also be used for molding unsaturated polyester pellets (DMC), sheet molding compounds (SMC), prefabricated monolithic molding compounds (BMC), etc. Generally, according to the matching structure of the upper and lower mold of the compression film, the compression mold is divided into three types: overflow type, non overflow type and semi overflow type.
(3) Extrusion molding
It is a forming method to make the plastic in viscous flow state pass through the die with specific section shape under high temperature and certain pressure, and then shape into a continuous profile with the required section shape at a lower temperature. The production process of extrusion molding is the preparation of molding materials, extrusion molding, cooling and finalization, traction and cutting, and post-treatment (quenching and tempering or heat treatment) of extrusion products. In the process of extrusion molding, pay attention to adjusting the process parameters such as the temperature of each heating section of the extruder barrel and the die, the number of screw revolutions, and the traction speed, so as to obtain qualified extruded profiles. Special attention should be paid to adjusting the extrusion rate of polymer melt from the die. Because when the extrusion rate of molten material is low, the extruded material has smooth surface and uniform section shape; However, when the extrusion rate of molten material reaches a certain limit, the surface of extruded material will become rough, lose luster, and appear shark skin, orange skin texture, shape distortion and other phenomena. When the extrusion rate increases further, the surface of the extrudate will be distorted, even split and broken into melt fragments or cylinders. Therefore, the control of extrusion rate is very important.
China Leading mould & plastic enclosure Manufacturer
FBELE focuses on the production and manufacturing of plastic shell. Welcome to customize. Powerful manufacturers can serve tens of thousands of customers and complete orders with high technology, high efficiency and precision! Welcome to consult and cooperate!
FBELE mold is a manufacturer focusing on automobile parts, intelligent robots, shared single vehicle parts and new energy charging pile molds. 1 Advanced design technology optimizes the cooling system 2. it is made of imported DIN 1.2738 steel to ensure the service life of the die
The precision of FBELE injection mold model is required to be at least one order of magnitude higher than that of traditional mold, which can meet the injection requirements of 10-100000 plastic parts, and the molding pressure is 7-1600 tons Multi position progressive die, multi-function die and multi cavity injection mold model are adopted Tel: 0086-18868647636
What does customer say about FBELE Company
FBELE Headphones & Earbuds & Headsets are of good quality, low price, good service and fast development of new products. It is a rare high-quality supplier in China.
FBELE not only provides standard products, but also provides us with free design. The solutions provided are very standardized, safe, practical, time-effective and technical. We are very satisfied. Thanks to FBELE’s design team.