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Plasma surface treatment to improve the efficiency of automotive interior production and product yield

Plasma surface treatment to improve the efficiency of automotive interior production and product yield

Flocking on the interior surface of automobile can achieve the purpose of decoration, beauty, shock absorption and noise prevention. The plasma surface treatment is very helpful to the optimization of the process flow, production efficiency and product yield of the flocking surface treatment of automotive interior parts, and has gradually become the standard process. Car inner decoration flocking products according to its decoration parts or flocking different parts, the effect will be focused on, which can be roughly divided into two kinds: one kind is softening and adornment, make the trim look and feel, feel is more luxuriant and comfortable, such as instrument panel, pillar guard plate surface surface, door frames, door sealing strip, locker, etc; The other is shock absorption, noise reduction and heat and cold insulation functions, such as sound insulation MATS, utility boxes, central console and the back of other interior accessories. Automobile flocking interior trim general geometric shape is irregular, there are strip, plane, surface, box and so on. Traditional flocking process steps: surface treatment → grinding → gluing → electrostatic flocking → curing → cleaning. There are some disadvantages as follows: 01. Solvent glue is usually used for gluing, which is flammable, toxic and pollutes the environment. 02. The smell of the volatile substances in the base coat and solvent-based glue is unpleasant, which will cause physical harm to the operators. 03, the interior decoration is not neat, there will be flocking uneven, large area lodging and color difference and other defects. Plasma surface treatment can meet the needs of various materials and the structure of the complex flocking, car inner decoration flocking products are made with good abrasion resistance, fluffy orthostatic, adhesion, dry and wet washing resistance, cold crack resistance and hands as well as good sensibility, and can choose environmentally friendly adhesive, no pollution, reduce the health risks of staff. Depending on the product and production process, we can choose jet injection (direct jet) plasma cleaning machine, jet rotation (rotary jet) plasma cleaning machine, glow atmosphere plasma cleaning machine, 4D intelligent integrated plasma cleaning machine and vacuum plasma cleaning machine.

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Wide - width plasma cleaning machine manufacturer

Wide - width plasma cleaning machine manufacturer

Low temperature wide width plasma cleaning machine, low temperature wide width plasma technology is almost suitable for all kinds of industrial applications, can provide different materials or composite materials with subsequent bonding, coating, pre-printing treatment, so that two different materials are effective and reliable together. Low temperature wide width plasma cleaning machine packaging industry: specializing in UV OPP PP PET gold and silver card polishing, plastic coated paper boxes or cartons before the surface treatment, after the low temperature wide width plasma machine treatment, can increase the fastness of the paste box, get rid of the trouble of glue. And can reduce the use of glue, effectively reduce the cost.   Low temperature wide width plasma cleaning machine printing and code jet industry: plastic glass metal composite surface screen printing, pre-processing low temperature wide width plasma cleaning machine, can improve the material surface of ink adsorption, penetration. IC card label, daily chemical containers. Plasma pretreatment before wire spraying code, improve ink adsorption. Low temperature wide width plasma cleaning machine plastic industry: plastic and rubber, metal, glass and other bonding pretreatment, can improve the surface bonding performance.

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Plasma cleaning machine working with the use of gas

Plasma cleaning machine working with the use of gas

Plasma cleaning machine due to its own characteristics in the process of production of many products have a place for use. In the cleaning process of plasma cleaning machine, it is necessary to cooperate with different gases to achieve the ideal cleaning effect of plasma cleaning machine. Divided by gas: One of the gases used is argon (Ar), an inert gas. In the vacuum chamber cleaning process, argon (Ar) is often used to effectively remove surface nanometer pollutants. It is often used in lead bonding, chip bonding copper lead frame, PBGA and other processes. If you want to increase the corrosion effect, please feed oxygen (O2). By cleaning the vacuum chamber with oxygen (O2), organic pollutants, such as photoresist, can be effectively removed. Oxygen (O2) is more used for high-precision chip bonding, light source cleaning and other processes. Some oxides that are difficult to remove can be cleaned with hydrogen (H2), provided that they are used in a very tight vacuum. There are also special gases similar to carbon tetrafluoride (CF4), sulfur hexafluoride (SF6), etc., which are more effective in etching and removing organic compounds. But the use premise of these gases is to have absolutely corrosion resistant gas path and cavity structure, in addition to their own to wear a good protective cover and gloves to work. Another common gas to talk about is nitrogen. This gas is mainly used in combination with on-line plasma for surface activation and modification of materials. It can also be used in a vacuum. Nitrogen (N2) is the best choice to improve the surface permeability of materials. Now the plasma cleaning machine is usually a 2-way gas, sometimes we will try to mix the gas proportion with cleaning, to achieve different effects.

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The plastic surfaces collide with the plasma to produce "unexpected" effects

The plastic surfaces collide with the plasma to produce "unexpected" effects

With the continuous improvement of plastic processing and modification technology, the application field is expanding rapidly. Different application fields require more and more plastic surface decoration, material protection, improvement of adhesion and other properties, but the corresponding surface properties of various plastic materials are obviously different due to their different structures and components. Various surface treatment technologies and products adapted to different applications emerge as The Times require. Due to the characteristic low surface energy of most plastics, the adhesive property is low in nature, and many treatment methods, such as decoration, printing, spraying, etc., cannot be directly applied, and the surface treatment is required first. The adhesion of plastics to various materials is a key problem to be solved in surface treatment. Generally speaking, the bonding properties of plastics are related to the structure and composition of materials. Some plastics are nonpolar and do not stick well, including polypropylene (PP), polytetrafluoroethylene (PTFE), PEEK and POM. PP, PE and other polyolefin materials, the surface energy is very low, usually only 30 Dyne. To achieve good adhesion, the surface energy is generally required to be no less than 36 Dyne. The bonding strength of PE can be increased several times after plasma treatment. After the same treatment, the bonding strength of PP will be significantly improved after the ionizing treatment. Plasma provides an effective surface activation pretreatment for printing, painting or bonding. This is a reliable and effective way to improve the printing adhesion and bonding strength. Plasma processing is carried out in a vacuum device or space. Air is pumped out, low-pressure gases are pumped in, and energy is applied in the form of electricity. Plasma coating is one of the application fields of plasma technology. It is suitable for a wide range of applications and offers great potential for improving the function and value of materials. In a plasma coating, the entire surface of an object placed in the plasma is coated with a nano-thick polymer. This coating process takes only a few minutes. The coating is usually only a few dozen to a few hundred nanometers thick and is colorless, odorless and has no effect on the material's appearance or feel. At the same time, it's a permanent coating of material that binds at the molecular level The effects of plasma-activated surfaces can be clearly seen in subsequent production steps, including the measurement of surface contact angles: droplets form on untreated surfaces and plasma-activated surface water spreads (low contact angles).

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Industry applications of plasma processors

Industry applications of plasma processors

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Activation of plasma cleaning machine

Activation of plasma cleaning machine

In the production process, many materials due to low surface energy, it is difficult to bond, spraying, printing, welding and other processing. Chemical primers, liquid binders, flame treatments, and plasma treatments are all activation methods that increase surface energy. Among them, chemical primer and liquid adhesive often have high corrosive and environmental hazards, flame treatment instability, high risk coefficient. And the plasma cleaning machine treatment of no damage, no pollution, no waste water, in line with environmental requirements, process stability and safety, is a safe and stable surface activation treatment technology. The following is mainly about the activation of plasma cleaning machine 1. Activation principle of plasma cleaning machine: Activated in an air or oxygen plasma, the nonpolar hydrogen bonds of the plastic polymers are replaced by oxygen bonds, providing free valence electrons on the surface to bond with liquid molecules, thus improving the adhesiveness and sprayability of the "unbonded" plastics. In a vacuum plasma, gases other than air and oxygen can be used, and these gases can adsorb nitrogen, amine or carbonyl groups as reactive groups in the position of oxygen. The activity of the surface treated by the plasma cleaning machine remains effective 2-24 hours later. However, follow-up processing should be carried out as soon as possible, because with continuous aging, new dirt will be absorbed and activity will be lost. 2. Use of plasma cleaning machine: (1) Plasma surface activation/cleaning; (2) Bonding after plasma treatment; (3) Plasma etching/activation; (4) Plasma degumming; (5) Plasma plating (hydrophilic and hydrophobic); (6) Enhancing the state character; (7) Plasma coating; (8) Plasma-ashing and surface modification. Through its treatment, can improve the material surface wetting ability, so that a variety of materials can coating, plating and other operations, enhance the adhesion, bonding strength, while removing organic pollutants, oil or grease. 3. Products processed by plasma cleaning function: Metal, PE, PP, PVF2, PVC, PT, LDPE, teflon and other materials, connectors, wires, glass lenses, car blinds and neon, halogen sky lamp reflector processing, etc 4. Plasma cleaning machine Application Field: Metal - remove grease, grease and other organic matter and oxide layer on the metal surface; Automobile manufacturing - used for plastics and spray painting in automobile manufacturing process; Textile production - for hydrophilic, hydrophobic and surface modification of textiles, strainers and films; Biomedicine -- Culture dishes to improve the activity, blood vessel stents, syringes, catheters and various materials to moisten, intersex coating pretreatment; Aerospace - surface coating treatment of insulating materials, electronic components, etc. Electronics - cleaning and etching of circuit boards. Film, PP and other materials without oxidation and activation treatment, improve the weldability; Semiconductor industry - wafer processing and processing removal of photoresist, pre-treatment before packaging; Pretreatment before CLEANING and packaging of LED-support; Plastic rubber - improves the surface activity of PS, PE, PTFE, TPE, POM, AS and PP to facilitate bonding and printing.

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