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ABS PP Thermoplastic Vacuum Forming Heat Forming Plastic Sheets Fire Retardant

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ABS PP Thermoplastic Vacuum Forming Heat Forming Plastic Sheets Fire Retardant

Brand Name : OEM
Model Number : OEM
Certification : ISO9001 ,CCC
Place of Origin : China
MOQ : 100 pcs
Price : USD+1.8-25 + pcs
Supply Ability : 1000000+pcs + per Month
Delivery Time : 10-30days
Packaging Details : EPE, polyfoam, carton, or other required packing materials
Item : Customized ABS /PP/PC Sheet Vacuum forming Thermoplastic Housing
Size : Customer customized
Process : Vacuum thermo-forming
Thickness : 1-12MM
Color : White /Black/Any color
Place of origin : Wuxi,China(Mainland)
Lead time : Within 15 days
Material : ABS,PMMA(Acrylic), PS, PP, PE PVC, PET, PETG, and HIPS ETC
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Customized ABS /PP/PC Sheet Vacuum forming Thermoplastic Housing


Vacuum forming is a simplified version of thermoforming, where a sheet of plastic is heated to a forming temperature, stretched onto a single-surface mold, and forced against the mold by a vacuum. This process can be used to form plastic into permanent objects such as turnpike signs and protective covers. Normally draft angles are present in the design of the mold (a recommended minimum of 3°) to ease removal of the formed plastic part from the mold.


Relatively deep parts can be formed if the formable sheet is mechanically or pneumatically stretched prior to bringing it into contact with the mold surface and applying vacuum


Suitable materials for use in vacuum forming are conventionally thermoplastics. The most common and easiest to use thermoplastic is high impact polystyrene sheeting (HIPS). This is molded around a wood, structural foam or cast or machined aluminium mold, and can form to almost any shape. This high impact material is hygienic and capable of retaining heat and its shape when warm water is applied and is commonly used to package taste and odor sensitive products.[2] Vacuum forming is also appropriate for transparent materials such as acrylic, which are widely used in applications for aerospace such as passenger cabin window canopies for military fixed wing aircraft and compartments for rotary wing aircraft. Vacuum forming is often used in low-level technology classes for an easy way to mold.


1. Extruding plastic sheet:ABS, HIPS, PP, PE, PC, PMMA resin granules are extruded or co-extruded into thermoplastic sheet or plate that textured, smooth, gloss or matt, fire retardant and UV resisted
2. Vacuum forming:After being heated, the plastic sheet is stretched onto or into a mould, and held against the mold by applying vacuum between the mould surface and the sheet to form designed shapes.
3. Cooling to keep shape:Once formed the plastic need to cool before being released from the mould. To speed up the cooling cycle, fans are fitted and activated once the plastic part is formed.
4. Machine large products:Our machine could be restructured to make larger plastic vacuum forming plastic products, with maximum dimensions of 3000*2000*800*11mm (L*W*H*T)
5. Trimming edges:Extra material is firstly trimmed before more accurate processing. Sawing is often used in the stages. Polishing is made additionally to smooth the edges.
6. Drilling holes:Drilling often follow the trimming. Other post forming processes include decoration, printing, strengthening, reinforcing and assembly.
7. CNC Processing:For more accurate and faster speed vacuum forming plastic products processing, CNC is often used. The machine is computer programmed to select correct cutting tools and angle to suit each area.
8. Examination and checking:Before packaging, all our vacuum forming plastic products will be carefully checked in terms of dimensions, surface finish, strength, color requirements and so on.
9. Cleaning and PackagingAll vacuum forming plastic products are cleaned before packaging. Products are wrapped with plastic film to prevent scratches and cartoon boxes are used or other methods are applied as required.

VACUUM THERMOFORMING

The earliest method was vacuum thermoforming (called simply vacuum forming when it was developed in the 1950s), in which negative pressure is used to draw a preheated sheet into a mold cavity. The process is explained below in its most basic form. The holes for drawing the vacuum in the mold are on the order of 0.8 mm (0.031 in.) in diameter, so their effect on the plastic surface is minor


Vacuum thermoforming: (1) a flat plastic sheet is softened by heating; (2) the softened sheet is placed over a concave mold cavity; (3) a vacuum draws the sheet into the cavity; and (4) the plastic hardens on contact with the cold mold surface, and the part is removed and subsequently trimmed from the web.


Applications. Thermoforming is a secondary shaping process, the primary process being that which produces the sheet or film. Only thermoplastics can be thermoformed, since extruded sheets of thermosetting or elastomeric polymers have already been cross-linked and cannot be softened by reheating. Common thermoforming plastics are polystyrene, cellulose acetate and cellulose acetate butyrate, ABS, PVC, acrylic (polymethylmethacrylate), polyethylene, and polypropylene.


Product Tags:

thin gauge thermoforming

      

3d vacuum forming

      
China Customized Inflatable Bumper Ball Game Bubble Adult Grass CE supplier

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