What is the difference between brushed film injection molding? 30

One. 1) After the adhesive is formulated, it becomes a filament due to the partial condensation of the glue after it exceeds the active period.

2) The atomization of the paint is not good when spraying, so that the paint can not be turned into fine droplets and sprayed out in a filamentous form, and the resulting coating film can not be leveled, and there is a drawing. The reason is that the viscosity of the coating application is high and the solubility of the thinner is poor. It is advisable to choose a suitable solvent and adjust it to the appropriate construction viscosity, so that the paint can be fully atomized and leveled when spraying, which can avoid this drawback.

3) Wire drawing is a metal processing process. In metal pressure machining. Under the action of external force, the metal is forced to pass through the die, the metal cross-sectional area is compressed, and the required cross-sectional area shape and size are obtained The technical processing method is called metal drawing process.

Make it change shape. The size of the tool is called a drawing die.

Two. Membrane. Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins for packaging and as a laminating layer.

Three. Injection molding. Injection molding, also known as thermoplastic injection molding, involves melting a plastic material and then injecting it into a membrane cavity. Once the molten plastic enters the mold, it is cooled and molded into a certain shape according to the mold cavity.

The resulting shape is often the final product and no further processing is required before it can be installed or used as the final product. Many details, such as protrusions, ribs, and threads, can be molded in a one-step injection molding operation.

An injection molding machine has two basic components: an injection device for melting and feeding the plastic into the mold, and a clamping device. The function of the mold and mold device is to:

1.Closing the mold under the pressure of injection; 2.The product is removed from the injection device to melt the plastic before it is injected into the mold, and then the melt is injected into the mold at controlled pressure and speed.

There are two types of injection units currently in use: a screw preplasticizer or a two-stage unit, and a reciprocating screw. Screw plasters utilize a pre-plasticizing screw (first stage) to inject molten plastic into the injection rod (second stage).

The advantages of the screw preplasticizer are a constant melt mass, high and high pressure, and precise injection volume control (using mechanical thrust stops at both ends of the piston stroke). These advantages are required for transparent, thin-walled products and high production rates. Disadvantages include uneven residence time (resulting in material degradation), high equipment costs, and maintenance costs.

The most commonly used reciprocating screw injection devices do not require a plunger to melt the plastic and inject it.

The machines are different, the raw materials are different and the production process is different.

First, the nature is different.

1. Properties of wire drawing material: a metal processing process.

2. Injection plastic properties: a method for producing molding industrial products.

Second, the characteristics are different.

1. Vertical dissipation characteristics of wire drawing material: it has excellent performance, sound absorption, sound insulation and fire resistance. The surface of the branch reed is brightly colored, uniform, and has a strong sense of fashion, and Yu Zhi gives people a strong visual impact.

The material has a strong metallic appearance, which is comparable to stainless steel brushed and scratched templates. It has the characteristics of clear texture, uniformity, super heat resistance, weather resistance, fire resistance, pollution resistance, and easy cleaning. It is a fashionable new type of high-grade decorative material, especially suitable for high-end comprehensive ceilings, combined ceilings, interior wall decoration and exterior decorative panel decoration of high-end household appliances.

2. Injection plastic characteristics: because it is machine-made, the output is large, so it is cheap. If there are many styles, it is more troublesome to change the mold, the shoes are difficult to shape, and the workmanship of the cold sticky shoes is exquisite, so it is generally suitable for orders with a single sole style.

The difference between injection plastic and wire drawing material is that the tensile strength of the wire drawing material is high, and if the wire drawing material is used for injection molding, the product is easy to warp;

Note: If plastic is used for wire drawing, the product is prone to cracking.

The molecular weight of the wire drawing material is large.

Injection plastic has high strength.

It's just a difference in liquidity. Brushed material can be injection molded.