Plasma treatment - for clean surfaces

Dispensing technology from the specialist bdtronic processes single and multi-component reactive casting resins in its dispensing systems. Depending on the material and application, different dispensing systems are used. Polyurethanes, epoxy resins, silicones, MS polymers, acrylates, methacrylate or heat conductive pastes are used as dispensing media or materials. They are widely used in a variety of industries, e.g. chemical, pharmaceutical, food and environmental engineering, and enable precise and controlled dispensing of materials. It is therefore possible to develop individual machine solutions for your needs. The dispensing systems are based on different processes. Reliable partner for dispensing bdtronic has the right dispensing process for every requirement and is the right partner for every dispensing task. Our many years of experience guarantee the highest level of process reliability for your applications. Basically, the dispensing processes of bdtronic work with volumetric dispensing systems according to the endless piston principle. The high-precision dispensing pumps are driven by servo-electric motors and material can be carried out continuously without interruption. Depending on the application, material and dispensing process, bdtronic uses screw pumps, internal gear pumps, external gear pumps or peristaltic pumps. The dispensing material is conveyed to the dispensing pumps by the respective material supply systems, which are ideally adapted to the dispensing material and the application. The dispensing pumps perform the respective task with the highest precision and independent of viscosity. Dispensing methods at one glance Bonding : The dispensing process adhesive bonding is used to connect two or more joining partners. Sealing: The sealing dispensing process is used to protect components from external influences by means of a barrier. Application of thermally conductive pastes: The application of thermally conductive pastes is used to dissipate heat in order to protect power electronics from reduced performance or defects caused by overheating. Potting and vacuum potting How to select the right pump? It is relevant to select a dispensing pump that is reliable in all areas. Only the pumps that are matched to the process lead to a faultless result. Viscosity Filling materials type Dispensing media type Dispensing rate Depending on the application area and task, all parameters would have to be coordinated to achieve the perfect result. Static and dynamic mixing The selection of the dispensing system for multi-component reactive casting resins is determined by processing parameters such as viscosity, mixing ratios, pot life and chemical-physical properties. We use different mixing principles. Depending on the properties of the casting resin, different processes are required for this, each of which can be individually adapted. bdtronic offers both static and dynamic mixing processes for dispensing applications to achieve perfect results for every application. Get more info on our website about our dispensing machines or visit our team of experts at our booth #2404. | Plasma pretreatment - optimal for cleaning and activation surfaces Plasma technology is the ideal pre-treatment for cleaning and activating surfaces before bonding and sealing processes. Whether plastic, metal or glass are used as composites is irrelevant here. The use of plasma pretreatment not only makes the processes more effective, but also makes them more environmentally friendly. Plasma pretreatment ensures that this process gains in quality. Long term durable adhesion Adhesive bonding is becoming increasingly important in modern industry. Mixed material joints (so-called sandwich joints), complex geometries, new materials, minimised adhesive quantities, these are all challenges that material manufacturers and plant engineers have to face. Plasma for improving adhesion, has been used in this context for a long time to clean and activate surfaces before appliing adhesives and sealings. Plasma ensures that contaminations are removed from the surface and functional groups are generated. This leads to several effects: The wettability of the surface is increased so that the applied material can be optimally distributed on the surface. The functional groups create a strong bond with conventional adhesives and potting compounds, thus ensuring better and more long-term stable adhesion, strength and tightness of the bond. Industrial bonding is increasingly becoming the focus of product development processes and manufacturing solutions. This trend can be explained on the one hand by the increasing material mix, but also by constantly rising requirements. In this context, a perfectly bondable surface is important. Atmospheric pressure plasma and low pressure plasma Artificially generated plasma is used, for example as a physical surface pre-treatment method. In contrast to "hot" plasmas for plasma welding or plasma cutting, these technologies are called "cold" plasmas. Here, a distinction is made between low-pressure plasma (NDP) and atmospheric-pressure plasma (ADP) . ADP systems are typically devices that can be integrated into various automation solutions under normal pressure conditions and where the plasma chamber is located in a head that can travel over the area of a component to be processed. ADP systems are ideal for integration into production lines for industrial applications, for example, for the application of adhesive beads or liquid sealants. NDPs are chamber systems in which a vacuum is first created and then a process gas is introduced, which is then sparked off to form plasma. In NDP systems, the components are placed or injected into a chamber. In this vacuum chamber, the plasma can reach and rinse almost the entire exposed surface including cavities of a product, whereas ADP systems are used selectively and are limited in their effective depth and width. Get more info on our Website about plasma treatment or talk to our experts at the booth #2404.