博文

目前显示的是 三月, 2021的博文

PLASTIC PALLETS MAKING AND ADVANTAGES

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  PLASTIC PALLETS MAKING AND ADVANTAGES Advantages of plastic pallets : 1. Convenient operation; 2. Wide application range; 3. Convenient handling; 4. Can be matched with non-slip rubber to ensure that materials won’t slip during handling and transportation; 6. Long service life and recyclable usage; 7. Plastic pallets are safe, hygienic, insect- and moth-proof, and no repairs are required. Disadvantages of plastic pallets : Affected by the plastic pallet mould, the structure and size of plastic pallets are poor in randomness. Manufacturers must continue to develop and gradually enrich their product categories. But for special size requirements, sometimes it cannot be met. Since the repairability is very low after damage, it can only be scrapped, but the waste can be recycled after a certain degree of damage. Plastic pallets  are warehousing and logistics products widely used in warehousing and transportation industries. According to the production process, plastic pallets can...

INJECTION MOULDING PROCESSING

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INJECTION MOULDING PROCESSING The injection molding process of plastic parts mainly includes four stages: filling-holding pressure-cooling-demolding. These four stages directly determine the molding quality of the product, and these four stages are a complete continuous process. 1. The filling stage Filling is a step in the entire injection cycle process. The time starts from when the mold is closed and the injection is started, until the mold cavity is filled to about 95%. In theory, the shorter the filling time, the higher the molding efficiency, but in practice, the molding time or injection speed is restricted by many conditions. 2. Pressure holding stage The function of the holding pressure stage is to continuously apply pressure, compact the melt, and increase the density (densification) of the plastic to compensate for the shrinkage behavior of the plastic. During the pressure holding process, the back pressure is relatively high because the mold cavity is already filled with pl...

Gas-assisted injection mold design should consider impact on process parameters

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  Gas-assisted injection mold design should consider impact on process parameters Technical characteristics of gas-assisted injection moulding (1) Design of mold cavity should try to ensure flow balance to reduce uneven penetration of gas. To ensure flow balance is also a design principle of ordinary injection molding molds, but it is more important for gas-assisted injection molding products. (2) Mold design should consider impact on process parameters, because gas-assisted injection molding is much more sensitive to process parameters than ordinary molding. In injection molding, slight differences in mold wall temperature or injection volume will cause asymmetry in gas penetration in symmetrical parts. Gas-assisted injection molding equipment (1) Ordinary injection molding machine (a higher accuracy of material counting is better). (2) Nitrogen control system, including self-enclosed gas-assisted nozzle. (3) High-pressure nitrogen generator. (4) Industrial nitrogen cylinders...

Want To Step Up Your TRASH CAN MOLD? You Need To Read This First

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  Want To Step Up Your TRASH CAN MOLD? You Need To Read This First HEYA MOLD is a professional plastic injection moulds manufacturer in China,and we can provide our customers with high-quality, high-yielding trash can molds. In each  trash can injection mould  design, engineers will conduct a rigorous design review, pay attention to the details of each mold design, so as to bring efficient operation speed, reasonable cooling structure and optimal molding cycle. The design of the trash can mold The plastic raw materials selected for garbage can molds are: PP (household bins), HDPE (industrial waste bins) The mold steel materials selected for garbage can molds are: 2738 (HRC35-38), 718 (HRC35-38), 2311, P20. The gate method chosen for the trash can mold is: Bucket: Hot runner point gate Large bucket: Hot runner big gate Very large: hot runner multiple large gate To reach high capacity and quality requirements, we recommend: Mold core and cavity using raw steel, in order to ...

30 standard requirements for plastic molding manufacturing

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  30 standard requirements for plastic molding manufacturing In order to improve quality of molds, greatly reduce complaints about mold quality problems, and ensure molds that are satisfactory to customers, common problems in mold manufacturing are summarized, standards are established and implemented as required. 1. A mold blank smaller than 2020, a die pit is required between a and b plates; a mold pit larger than 2020, all templates including thimble plate are to be smashed. 2. Mold guide post guide sleeve should be processed to exhaust groove to prevent guide post guide sleeve from being pulled. 3. There must be no sharp corners on plastic molding and chamfering is required. Except some places that is specified. 4. Inner mold and mold parts must not be welded without consent. 5. Periphery of mold product must be opened at appropriate position. For specifications of exhaust groove, please refer to plastic mould design manual. 6. Avoid using a s...

PLASTIC PALLET MOULD

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  PLASTIC PALLET MOULD  Heya Mold is a  China plastic pallet mould manufacturers . We have a professional R&D team in the production of  China plastic pallet mould . Our pallet moulds include box folding pallet moulds, flat nine-point pallet moulds, large flat nine-point pallet moulds, grid Chuan word pallet moulds, field-shaped double-sided pallet moulds, and so on. We have large-scale pallet mould processing equipment, pallet injection moulding equipment, and can produce pallet moulds of various sizes for customers. At present, most of the plastic pallets circulating on the market use thermoplastics such as PE\PP. In order to increase the service life and load-bearing capacity of plastic pallets, some additives to improve performance are added to the raw materials, which are processed by injection moulds, blow moulding and other processes. The advantages of plastic pallets can be summarized as follows: 1. Various designs of plastic pallets can be lifted and ins...

HOME APPLIANCE MOLD SUPPLIER - Heya Mold

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HOME APPLIANCE MOLD SUPPLIER With the fierce competition in the home appliance market, home appliance molds  manufacturing  has become an important part of the existing design with complex and precise requirements. At the same time, the color, feel, precision and wall thickness of the housing of household appliances put forward new requirements. With the acceleration of product updates, the emergence of new products, the overall shell of home appliances towards a thin, light, fine direction of development. HEYA MOLD introduced a variety of imported high-precision processing equipment, five-axis CNC processing equipment, dedicated to electrical shell mold processing, air conditioning parts mold, air conditioning shell mold processing. The surface machining accuracy of household appliances manufactured with high-speed milling and finishing can reach 0.01mm. HEYA MOLD also applies hot current technology and gas-assisted technology to the molding of home appliances mould...

How to set your injection molding machine parameters?

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 How to set your injection molding machine parameters? Injection Molding Machine Introduction Technology: Polycarbonate injection molding is an engineering technology that involves transforming plastic into useful and original products. Important process conditions for polycarbonate injection molding are temperature, pressure and corresponding individual time of action that affect plasticizing flow and cooling. Injection moulding machine setting – temperature control 1.  Barrel temperature : Temperature to be controlled during moulding process is barrel temperature, nozzle temperature and mold temperature. First two temperatures primarily affect plasticization and flow of plastic, while latter temperature primarily affects flow and cooling of plastic. Each plastic has a different flow temperature. Same plastic has different flow and decomposition temperatures due to different sources or grades. This is due to difference in average molecular weight and distr...