图片名称

NEWS

Popular Articles

Contact Us

图片名称
图片名称

Service Hotline

13632675935

CRF

TEL：13632675935

E-mail：shaobo@sfi-crf.com

Address: 1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

The basic plasma cleaning machine has super cleaning function

The basic plasma cleaning machine has super cleaning function

Basic plasma cleaning machine two electrodes form the electromagnetic field, using vacuum pump to achieve a certain degree of vacuum, with gas is more and more thin, the distance between molecules and the free movement of distance between molecules or guo is getting longer and longer, the magnetic field effect, plasma, formed by the collision, the glow will happen at the same time, the plasma space motion within the electromagnetic field, and bombardment treated surfaces, to remove surface oil and the surface oxide, ashing surface organic matter, and other chemical substances, so as to achieve surface treatment, cleaning and etching effect, after plasma treatment process can realize the selective surface modification. Functions of basic plasma cleaning machine: 1. Superclean the organic pollutants (such as paraffin, oil, film release agent, protein, etc.) on the surface of metal, glass, silicon wafer, ceramics, plastics and polymers. 2. Change the surface properties of certain materials. 3. Activate the surface of glass, plastics, ceramics and other materials to enhance their adhesion, compatibility and wettability. 4. Remove the oxide layer on the surface of metal materials. 5. Sterilize and sterilize the cleaned objects. Advantages of basic plasma cleaning machine: 1. Effectively remove surface organic pollutants. 2. Quick cleaning, easy operation, low cost of use and maintenance. 3. Non-destructive, no damage to the surface finish of the object to be cleaned. 4. Green, no chemical solvent, no secondary pollution. 5. Under normal temperature, the temperature of the object to be cleaned changes slightly. 6. Can clean surfaces of various geometric shapes and different roughness.

MORE +
Three applications of plasma cleaning in the lithium battery industry

Three applications of plasma cleaning in the lithium battery industry

The production and manufacture of lithium-ion batteries are closely linked by each process step. Generally speaking, the production of lithium batteries consists of three parts: the fabrication of the electrode, the fabrication of the cell and the assembly of the battery. There are several key processes in these three processes, and the performance of batteries produced by different production processes is very different. The addition of plasma cleaning in the three processes can greatly improve the level of battery manufacturing. PLASMA cleaning is used before PLASMA coating: The anode and cathode pieces of lithium battery are made by coating the anode and cathode materials of lithium battery on the metal thin strip. When coating the electrode material, the metal thin strip needs to be cleaned. The metal thin strip is usually aluminum thin or copper thin. Plasma dry cleaning machine effectively solve the above problems. Plasma cleaning before battery welding: Plasma cleaning is a dry cleaning, mainly depends on the active ion in the plasma "activation" to remove the object surface stains. This method can effectively remove the dirt and dust on the end face of the battery pole column, and make preparation for the battery welding in advance, so as to reduce the defective products of welding. PLASMA cleaning during battery assembly: In order to prevent lithium battery from safety accidents, it is generally necessary to glue the lithium battery cell to play the role of insulation, prevent the occurrence of short circuit, protect the circuit and prevent scratch. Clean the insulation board and end board, clean the dirty surface of the cell, roughen the surface of the cell, and improve the adhesion of adhesive or glue coating. Depending on the "five actions" of the active particles in the plasma, the bonding, bonding, welding, coating, bonding and removing adhesive effects can be enhanced. The pollutants may be organic matter, epoxy resin, photoresist, oxide, particulate pollutants, etc. Different cleaning processes should be adopted for different pollutants, and different process gases should be selected.

MORE +
The action mechanism of atmospheric pressure plasma cleaning machine on rubber and plastic products

The action mechanism of atmospheric pressure plasma cleaning machine on rubber and plastic products

In industrial applications, we found that some rubber and plastic parts will have difficulty in adhesion when surface connection is made. This is because polypropylene, PTFE and other rubber and plastic materials are non-polar, and the printing, adhesion and coating effects of these materials without surface treatment are not ideal. In some processes, some chemical agents are used to treat the surface of these rubber and plastic materials, which can change the bonding effect of materials. However, this method is not easy to grasp. Chemical agents themselves are toxic, very troublesome to operate, and the cost is high, and chemical agents also have an impact on the original excellent performance of rubber and plastic materials. Plasmas are used to treat the surface of these materials. Under the bombardment of high speed and high energy plasma, the structural surface of these materials is optimized, and an active layer is formed on the surface of these materials, so that rubber and plastic can be printed, bonded, coated and other operations. Plasmas technology is applied to the surface treatment of rubber and plastics, which is simple to operate, no harmful substances are produced before and after treatment, good treatment effect, high efficiency and low operating cost.

MORE +
Plasma properties

Plasma properties

Plasma state is often called "supergas", it and gas have many similarities, such as: no definite shape and volume, has liquidity, but also has a lot of unique properties. The particles in a plasma have a population effect, and as long as a particle disturbance, the disturbance propagates to the ionized particles in each plasma. Plasmas themselves are good conductors. A plasma differs from a normal gas in that it is an ionized gas. Due to the presence of negatively charged free electrons and positively charged ions, there is a high conductivity and strong coupling of electromagnetic fields: charged particles can be coupled to the electric field, and charged particle flows can be coupled to the magnetic field. Plasma was described using electrodynamics, and a theory called magnetohydrodynamic was thus developed. Plasma: Unlike ordinary gases, a plasma contains two or three different components: free electrons, positively charged ions and unionized atoms. This allows us to define different temperatures for different components: electron temperature and ion temperature. In mildly ionized plasma, the ion temperature is generally much lower than the electron temperature, which is called "low temperature plasma". Highly ionized plasmas with high ionic and electron temperatures are called "high temperature plasmas". The interaction between the constituent particles of the plasma is also much larger than that of ordinary gases. Rate distribution: The velocity distribution of general gas satisfies The Maxwell distribution, but the plasma may deviate from the Maxwell distribution due to its coupling with the electric field. Surface isoexciter effect: Experiment we put metal particles as plasma (metal crystal because of its internal exist a large number of free electrons can move - - with quantitative charge, free distribution, collision and will not lead to the disappearance of the charge - so the metal crystals can be seen as the electron plasma), due to the dielectric coefficient of metal in the visible and infrared wavelengths is negative, so when the metal and dielectric composite as composite structure can happen a lot of interesting phenomenon. When light waves (electromagnetic waves) incident to the metal and medium interface, free electrons on the surface of the metal collective oscillation occurs, if the oscillation frequency of the consistent with the frequency of the incident light wave will produce resonance, then to form a special electromagnetic mode: electromagnetic field were limited within the scope of the metal surface is small and enhancement, this phenomenon is called from the excimer phenomenon such as surface. This electromagnetic field enhancement effect can effectively improve the molecular fluorescence signal, atomic high harmonic generation efficiency, and molecular Raman scattering signal. On a macroscopic scale, this phenomenon is manifested as a significant increase in the transmittance of metallic crystals at a specific wavelength.

MORE +
Plasma forming device

Plasma forming device

Generally, the energy of particles in low-temperature plasma is about several to dozens of electron volts, which is larger than the bonding energy of polymer materials (several to dozens of electron volts). It can break the chemical bonds of organic macromolecules and form new bonds. However, it is far lower than high-energy radiation, which only involves the surface of the material and does not affect the performance of the matrix. The thermodynamic equilibrium conditions of low temperature plasma, electron has high energy, can fracture of material surface molecular bonds, improve particle chemical reactivity (more than hot plasma), and neutral particles temperature close to room temperature, these advantages for heat-sensitive polymer surface modification provides appropriate conditions. Plasma with different properties and application characteristics can be obtained by selecting the appropriate discharge mode. Generally, hot plasma is generated by corona discharge of gas at atmospheric pressure, and cold plasma is formed by glow discharge of gas at low pressure. The hot plasma device USES a charged body tip (such as a knife or needle tip and a slit electrode) to create an uneven electric field, which is called corona discharge. The application voltage and frequency, electrode spacing, treatment temperature and time all affect the corona treatment effect. If the voltage increases and the power supply frequency increases, the treatment intensity is large and the treatment effect is good. However, too high power frequency or too wide electrode gap will cause too many ion collisions between the electrodes, resulting in unnecessary energy loss. However, if the electrode spacing is too small, there will be induction loss and energy loss. When the treatment temperature is high, the surface characteristics change rapidly and the treatment time is prolonged, and the polar groups increase. However, if the time is too long, decomposition products may be generated on the surface, forming a new weak interface layer. Cold plasma device is set in an airtight container, two electrode form electric field with a vacuum pump to achieve a certain degree of vacuum, with gas more and more thin, the distance between molecules and the free movement of distance between molecules or ions is also becoming more and more long, the electric field, they collide and form plasma, then have a glow, so called the glow discharge treatment. The pressure of glow discharge has great influence on the effect of material treatment, and is related to discharge power, gas composition, flow velocity, material type and other factors. Different discharge modes, working material states and the factors above affecting plasma generation can be combined to form various low-temperature plasma treatment equipment.

MORE +
What is plasma cleaning and what is its function

What is plasma cleaning and what is its function

MORE +
< 1234...46 > proceed page
图片名称

CRF

National Service Hotline

136 3267 5935

Contact Email

shaobo@sfi-crf.com

Address:1303, Building 3, Manjinghua Science and Innovation Workshop, No.6 Songjiang Road, Songgang Street, Bao'an District, Shenzhen, China.

图片名称

Add WeChat
Get related information

Links

Apply to exchange friend links

Copyright © Shenzhen Chengfeng Smart Co.

京ICP备10002622号-38

粤公网安备 44030602005200号

图片名称

Cheng Feng Zhi Zuang a focus on plasma research and development for 20 years

We

The services of

Inquire for free sample testing

1-to-1 program customization

24-hour online after-sales service

Source manufacturer

Get the program
%{tishi_zhanwei}%
图片名称

Scan the code for information

诚峰智造