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What is a double station vacuum hot press shaping machine?

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What is a double station vacuum hot press shaping machine?

microcomputer control and Chinese version operation interface are adopted in the working process of double station desktop external vacuum pumping packaging machine. The machine integrates the functions of vacuum pumping, nitrogen filling and sealing, and is suitable for various packaging materials
main advantages
this machine is desktop, compact, saves floor space and can be used in a narrow space. The chamber less air nozzle mechanism is adopted, which is not limited by the size of the vacuum chamber. It has a wide range of applications and fast vacuum speed. The dual station can work separately, synchronously and alternately, which greatly improves the work efficiency of a single machine
it is mainly equipped with
built-in famous brand pneumatic components and domestic /imported environmental protection vacuum pumps. It is suitable for use in the purification room
application field
1. It is used for vacuum packaging of various electronic products, such as electronic components, precision electronics, hardware devices, etc., to prevent moisture, oxidation, discoloration and static electricity
2. It is used for vacuum packaging of seafood, fruits, tea and bean products in food to prevent oxidative deterioration and prolong the shelf life. Or fill with nitrogen, carbon dioxide and other protective gases to preserve freshness and taste, and prevent impact
3. It is used for vacuum packaging of cloth, cotton and wool products to compress the packaging volume and save logistics costs
4. When the packaging of modern precision products is directly vacuum packaged in ordinary environment, and the effect cannot be met and the cleanliness of products cannot be guaranteed, it has become a trend to use class 100 dust-free room to complete production assembly and even packaging. Class 100 dust-free outdoor pumping vacuum packaging machine can directly discharge the waste gas generated during the operation of the machine after precise treatment. There is no secondary pollution to the environmental cleanliness of 100-10000 dust-free room, which can meet the requirements of dust-free purification production environment up to 100
main functions
1. Sealing process, direct sealing
2. Vacuum process: vacuum first and then seal
3. In the inflation I process, vacuum first, then inflate and then seal
4. In the inflation II process, vacuum first, then inflate, then vacuum, then inflate, and then seal
main features
1. Microcomputer control system
2. Thin film Chinese version operation interface
3. Working process parameter memory function, easy to operate
4. The sealing mechanism adopts uninterrupted working system, which is flat, safe and reliable
5. Accurate and reliable sealing temperature regulation system, suitable for various packaging materials
6, a working platform designed of antistatic stainless steel with free adjustment and lifting
main parameters
maximum sealing size:
320 * 10 * 2
420 * 10 * 2
maximum packaging size:
L * 320 * h * 2
L * 420 * h * 2

main function
1. Vacuum packaging
is deoxidization, which is conducive to moisture-proof and oxidation proof vacuum packaging of products. The mildew, rot and deterioration of products are mainly caused by the activities of microorganisms in the air, and the survival of most microorganisms requires oxygen. Vacuum packaging uses this principle to pump out the oxygen in the packaging bag and the built-in product cavity, so that microorganisms lose their “living environment”. Experiments show that when the oxygen concentration in the packaging bag is ≤ 1%, the growth and reproduction speed of microorganisms will drop sharply. When the oxygen concentration is ≤ 0.5%, most microorganisms will be inhibited and stop reproduction. Oxygen free to prevent product oxidation. Hardware and electronic products have high requirements for cleanliness. In the process of transportation, the product surface is oxidized due to air pollution, and even the component performance of electronic products is unstable due to the action of oxygen molecules. Therefore, deoxidizing and isolating oxygen can effectively prevent product deterioration
2. Vacuum inflatable packaging
is to fill a single gas such as nitrogen, carbon dioxide and oxygen or a mixture of two or three gases after vacuum. The nitrogen is an inert gas, which plays a filling role and keeps the positive pressure in the bag, so as to prevent the air outside the bag from entering the bag and protect the food. Its carbon dioxide can dissolve in all kinds of fat or water and lead to carbonic acid with weak acidity. It has the activity of inhibiting microorganisms such as molds and spoilage bacteria. Its oxygen can inhibit the growth and reproduction of anaerobic bacteria and maintain the freshness and color of fruits and vegetables. High concentration oxygen can keep fresh meat bright red. [1

. The geometric shape of parts has a high degree of freedom, which can produce metal parts with complex shape in one time like the production of plastic products
2. MIM products have uniform density and good finish, and the surface roughness can reach RA 0.80 ~ 1.6 μ m. The weight range is 0.1 ~ 200g. High dimensional accuracy (± 0.1% ~ ± 0.3%), generally without subsequent processing
3. Wide range of applicable materials, wide application fields, high utilization rate of raw materials, high degree of production automation and simple process, which can realize continuous mass production
4. The product has stable quality and reliable performance. The relative density of the product can reach 95% ~ 99%. It can be subject to heat treatment such as carburizing, quenching and tempering. The product has high mechanical properties such as strength, hardness and elongation, good wear resistance, fatigue resistance and uniform structure
metal powder injection molding combines the advantages of powder metallurgy and plastic injection molding, breaking through the limitations of traditional metal powder molding process on product shape. At the same time, plastic injection molding technology can be used to produce parts with complex shapes in large quantities and efficiently, such as various external grooves, external threads, conical outer surfaces, cross through holes, blind holes, recesses, key pins and stiffeners, Surface knurling, etc.
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hot melt impregnation method
hot melt impregnation is also called resin film impregnation. Its main advantages are: the fiber yarn is straight and uniform, the most glue content, bandwidth and thickness can be accurately controlled. Hot press immersion. The impregnation effect is good and there is no gap between yarn bundles It helps to reduce the porosity of products: no solvent volatilization, good working environment, etc Hot melt impregnation is carried out on a special hot melt impregnation machine. After the machine starts, the traction roller pulls the upper and lower isolation paper to move synchronously with the continuous fiber At this time, the resin heated to the molten state is evenly coated on the corresponding single side of the upper and lower isolation paper through the coating roller, and the glue film on the upper and lower isolation paper clamps the fiber in the middle Press the molten resin into the middle of the fiber through the pressure roller, cool it, and finally roll up the upper and lower isolation paper and prepreg belt respectively for use The glue content of prepreg can be controlled by adjusting the gap between squeegee roller and film roller, temperature and paper speed
molding mold
the molding mold of autoclave requires that the mold material can maintain appropriate performance under the molding degree and pressure of the product. At the same time, it also takes into account the cost, service lif
e, tip degree, strength, quality, machinability, thermal expansion coefficient, dimensional morality, surface treatment and thermal conductivity of chess tools. Aluminum, steel, nickel alloy, electrodeposited insert and carbon /epoxy composite materials can be selected for the manufacture of molds

autoclave molding process simulation
in the autoclave molding process, the following main physical and chemical changes will occur: ① resin flows in the fiber to promote the resin to fully soak the fiber; ② To ensure the maximum volume fraction of fiber in the composite network; ③ Appropriate curing pressure to inhibit the formation of pores in the resin matrix; ④ Appropriate curing temperature and cycle. To ensure that the resin is fully cured. All these physical and chemical processes can be simulated by establishing resin flow model, fiber deformation model, fiber consolidation model, pore formation model and heat transfer model, and these models can be integrated into the software system of curing process optimization.

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