Corrugated plastic sheets, also called hollow partition board, Wantong board, double-wall board, corrugated board) adopts modern HDPE and HDPP materials, which is a light weight hollow structure, non-toxic, non-polluting, waterproof, shockproof, New materials with anti-aging, anti-corrosion and rich color, compared with cardboard structure products, hollow board has the advantages of moisture proof, anti-corrosion and lighter weight to replace cardboard. Compared with injection molded products, the hollow plate has the advantages of shockproof, flexible design structure, and no need to open injection molds.
Usage of 4x8 corrugated plastic sheets:
1. Industrial product packaging turnover: electronic components packaging turnover box, plastic parts turnover box, box partition knife card, anti-static hollow board turnover box, conductive hollow board turnover box.
2. Luggage pallet: Luggage lining board, luggage lining board, partition board.
3. Bottle and can industry: glass bottle factory pads, bottle holders, canned product partitions, jar holders, and pads.
4. Machinery industry: machine cushion board.
5. Advertising industry: PP hollow board display box, display stand, advertising board, corona board.
6. Home decoration: ceiling, grille, bathroom partition,
7. Furniture industry: coffee table pads, furniture decorative plates.
8. Agriculture: all kinds of fruit boxes, vegetable packing boxes, pesticide packing boxes, food packing boxes, beverage packing boxes; greenhouse roofs.
9. Stylistic products: smart blackboards, file bags.
Feature of 4*8 plastic corrugated sheet:
Good mechanical properties
The special structure of the plastic hollow board makes it have good mechanical properties such as good toughness, impact resistance, high compressive strength, cushioning and shock resistance, high stiffness and good bending performance.
Light weight
The plastic hollow board has excellent mechanical properties, and the same effect should be achieved as compared with the same period last year. The plastic hollow board has fewer consumables, low cost and light weight.
Insulation and sound insulation
Due to the hollow structure of the plastic hollow plate, its heat and sound transmission effects are significantly lower than those of solid plates, and it has good heat insulation and sound insulation effects.
Anti-static conductive flame retardant
Modification, mixing, surface spraying and other methods can make the plastic hollow board have antistatic, conductive, or flame retardant properties.
Stable chemical properties
Plastic hollow board can be waterproof, moisture-proof, corrosion-proof, insect-proof, fumigation-free and has obvious advantages compared with cardboard and wood board.
Specification:
Size: 4*8ft
Thickness: 1.8-15mm
THC | 1.6-2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
GSM | 280-450 | 400-600 | 600-900 | 800-1200 | 900-1600 | 800-1800 | 1400-1800 | 1500-2000 | 1600-2200 | 2200-2500 | 2600-3500 |
Production of 4x8 corrugated plastic sheets:
The injection molding production cycle of plastic hollow board is as follows:
Closed mold, high pressure and low speed mold clamping, an injection seat forward, a melt injection, a holding pressure, and a mold melt cooling (at the same time during this process, there is also a plasticizing screw that moves backward with the injection seat, and the screw rotates to plasticize the raw material). The molding melt is cooled and solidified, and the mold is opened (the product is ejected at the same time) and the mold is closed (the next cycle of injection product production begins).
The raw materials for plastic hollow plates are fed into the barrel of the injection molding machine by the hopper, and the rotating screw pushes the raw materials forward. At the same time, the raw material receiver is heated outside the barrel. Because the raw materials are heated and heated in the barrel, they are also compressed due to the gradual reduction of the thread volume on the screw, and the non-stop rotation of the screw thread causes the friction between the forward material and the friction between the material and the barrel. Conditional action, so that the raw material is gradually plasticized into a molten state while being pushed forward. The molten material to the front end of the screw generates the reverse screw thread pushing force due to the resistance of the nozzle. As the screw advances the amount of molten material forward, the resulting molten material pushing force also gradually increases. When it is greater than the thrust and frictional resistance of the cylinder piston to the screw (this resistance is the back pressure of the screw), the screw starts to retreat and at the same time starts the metering of the hopper. The distance of the screw retreat is determined by the injection material volume of the injection molded product at one time, and controlled by the stroke limit switch adjusted before production. After the backward screw meets the travel switch, it stops rotating and retreats to complete a pre-plasticized raw material program.
After the preserving pressure and cooling setting reach the preset time, the solid forming of the product is completed. The injection seat is pulled back by the piston of the oil cylinder, and the second pre-plasticization of the screw is started, the forming mold is opened, the product is ejected from the mold cavity, and the entire injection process of the plastic hollow plate is completed.
After the mold clamping part completes the clamping action, the injection seat is pushed forward by the cylinder piston until the nozzle is close to the bushing port; then the injection cylinder piston pushes the screw forward quickly, according to the pressure and flow rate required for the melt to enter the molding mold , Inject the melt into the cavity of the forming mold. In order to prevent the molten material from filling the mold cavity and replenish the molten material shrinkage before cooling and solidifying, the nozzle that completes the injection is still close to the bushing mouth and maintains a certain pressure. This process is called Holding pressure, cooling and shaping.
FAQ:
Q:What's the delivery time?
A: Within 3 days for delivery 1*40'HQ container after PO confirmed on both sides.
Q: What's the payment terms?
A: T/T 30% deposit 70% against BL copy ; L/C
Q: Are you factory or trading company?
A: We're factory, and can do exporting ourselves and trading others if you want LCL.
Q:How's your capacity in your workshop?
A: We have 6 production lines in our workshop, can ship 60 *40'HQ containers of PP Corrugated Sheet within 1 month.
Packing & Shipping:
For 4*8 size, ususlly 20 pieces per PE bag.
For pallet packing, ususlly in 2000mm height in 4*8ft pallet.
Hot Tags: 4x8 corrugated plastic sheets, China, manufacturers, suppliers, wholesale
