We closely keep up with the latest techniques and monitor the newest trends and development of the mold manufacturing. The successful application of the gas-assisted technology in mold area is one of our achievements. These techniques in mold have become more and more popular for the below advantages:
1.Saving material.
2.Shortening the turnaround time.
3.Decreasing the injection pressure and prolongs the lifetime of the injection machine.
4.Decreasing the cavity pressure and the lock force of the mold and then increase the working life ííof the mold.
5.Easy to improve the surface defect of the product.
Because there are so many benefit from gas-assisted mold and its prosperous potential, we have conducted many research on it. Now we gain enough experience on it design, manufacturing and application and build up a group of experienced engineering staff that focused on it. Besides, we continuously aim at the latest achievement in this filed, and invite the expert to our company for training. We keep good business relation with the famous facility supplier in world. We believe we can provide you the excellent service of gas-assistant mold basing on our professional experience and spirit.
13-year experience, 12,000m2, over 200 staffs, with ISO9001 and ISO14001, specialized in gas-assisted mold, insert mold, 2K mold, multi-cavity injection mold(MAX 32 cavity, over mold, molds for all kinds of precision parts and multi-drops hot runner solution. Below are the basic info about us: - Machining tolerance control is Min 0.005mm - Moldflow analysis & FAI report & Weekly report - 15 project engineers with good english skill - 25 mold designers, 10 CAM engineers - 35 advanced equipment from Germany, Switzerland, Japan - Involve Automotive, Medical, white goods, electrical, Industrial field - In-time communication and on-time delivery
Gas-assisted injection molding technology features (1) The design of the mold cavity should ensure the flow balance to reduce the uneven penetration of the gas, and ensure the flow balance is also a design principle of the common injection molding mold, but this is more important for the gas-assisted injection molding products. (2) The mold design should consider the influence on the process parameters, because gas-assisted injection molding is much more sensitive to process parameters than ordinary molding. In injection molding, small differences in mold wall temperature or injection volume can lead to asymmetry of gas penetration in symmetrical parts. Gas-assisted injection molding equipment (1) Ordinary injection molding machine (the metering accuracy is slightly higher). (2) Nitrogen control system, including self-sealing gas-assisted nozzles. (3) High pressure nitrogen generator. (4) Industrial nitrogen cylinders and air compressors that provide supercharged power. (5) A mold designed and manufactured for gas-assisted injection. (6) Gas-assisted injection molding gas auxiliary nozzle The nozzle air intake mode uses a special self-closing gas-assisted nozzle. After the plastic injection is finished, the high-pressure gas directly enters the plastic inside by the nozzle, and forms an extended closed space-air cavity according to the air passage and maintains a certain pressure until the pressure is maintained. Cooling, before the mold is opened, the nozzle is forced to separate from the product channel by the backrest of the table, and the gas is discharged from the product. (7) gas needle The air needle intake method is to install an exhaust deviceâ??a gas needle at a specific position of the mold. When the plastic is injected into the cavity, the gas needle is wrapped inside the plastic; at this time, the high-pressure gas is discharged, and the gas needle forms an extended closed space-air cavity according to the air passage inside the plastic, and maintains a certain pressure until cooling, and the mold is opened. Previously, the gas in the air chamber was discharged from the interior of the plastic by the control device by means of a gas needle.
According to customer's different requirement, Longmold supplies a Wide variety of blow molds, and can build blow molds of various metal materials like S50C, P20, 718, S136 and aircraft aluminum. ííWe can build high-quality extrude blow mold to produce PP or PE containers for various packaging fields, including cosmetic, food, beverage, detergent, health care products, gasoline, medical, chemical, oil and so on. ííOur molds can ensure the customer to produce high-quality product with the most economical investment, the shortest production startup time and the lowest maintenance cost. íí1.Extrusion Bottle Molds. íí2.Injection Blow Molds. íí3.Stretch Blow Molds.
Longmold molding division offers a complete range of molding services including: Traditional injection molding. Hot runner molding. Two-shot injection molding. Insert molding. Custom injection molding. Blow molding Pressure molding for die castings. Our injection molding equipment ranges from 80t to 1200t. We are capable of manufacturing products with very low tolerances that satisfy customers' high-end specifications. From commodity resins to engineering grades, we can take on your most demanding plastics applications. The following is a partial list of current molding materials used by longmold molding division. Abs, eva, hdpe, ldpe, pa6, pa66, pa+gf, pbt, pc, pc+abs, pet, pvc, pom, pmma, pp, pp+gf, Ppo, pvc, ps, pu, san, tpu, aluminum, alloy aluminum, zinc , zinc alloy, etc.
Longmold pressure die-casting division offer a range of fully automated machines from 200 to 1200 tons locking force for weight to 10-15kg components, rich experience has enabled us to consistently produce the high quality products for our customers. Our main die-casting parts include auto and motorcycle engine cases, covers, starters, alternators, clutches, drive faces, and hardware tools. Material: Aluminum alloy, zinc alloy, magnalium. Second operation: Cnc machining, polishing, edm texture, turning, sand blasting, tapping. Lacquer, electro-deposited coating, chrome plating, nickel plating. Longmold die-casting advantage: Cost-effective production Cost-effective design Tight dimensional tolerances Thin wall construction Good physical properties
Supplier: Plastic injection mold, die casting mold, precision mold, blow mold, gas-assisted mold, hot runner mold, rapid prototyping
Buyer: Plastic injection mold, die casting mold
Supplier: Standard injection molding, two shot molding, insert molding, steam molding, gas assist molding
Services: Manufacture
We have rich experience on design & manufacture for precision molds of high cosmetichome appliance products, such as Airfryer, Vacuum Cleaner etc. Technology: gas-assisted mold, insert mold, 2K mold, multi-cavity injection mold, molds for all kinds of precision parts Production Capabilities: 50-60 sets per month Max Mold Size: 1500mm*1000mm*1000mm Max Mold Weight: 10 tons Maximum No. of Cavities : 32 Machining Tolerance Control: Min 0.005mm Multi-Drops Hot Runner Solution Material: LKM steel mold base, and Germany Groditz, Germany SCHMOLZ+BICKENBACH, Sweden ASSAB, Austria Bohleretc steel to build our molds. The Steel Certification will be provided to the customers with tool delivery. For more details, please feel free to contact.
Rich experience on design & manufacture for precision molds ofcomplex industrial products (such as spraying device etc.) and high performance engineering plastic products. Production Capabilities: 50-60 sets per month Max Mold Size: 1500mm*1000mm*1000mm Max Mold Weight: 10 tons Maximum No. of Cavities : 32 Machining Tolerance Control: Min 0.005mm Multi-Drops Hot Runner Solution Material: LKM steel mold base, and Germany Groditz, Germany SCHMOLZ+BICKENBACH, Sweden ASSAB, Austria Bohleretc steel to build our molds. The Steel Certification will be provided to the customers with tool delivery. For more details, please feel free to discuss.
