Filter technology and special processes
With our experience we can support you in the development of innovative and ecological filter systems. Regardless of whether it is overmolded, clamped, welded or formed using thin-wall technology - we find the optimal solutions for a wide variety of applications. Be it plastic filter housings for process filtration in the petrochemical fresh water filter or the filter in your coffee machine, we will find the right solution. The filters are used in very different branches of industry as well as in research. The plastic housings consist of polyamide (PA), polypropylene (PP) and styrene-acrylonitrile (SAN), among other things. Depending on the design and construction, the filters can be exposed to an operating pressure of up to 8.5 bar and an operating temperature of up to 70 ° C.
Filter units made of polypropylene (PP), polyamide (PA) and polyester (PET) with filter fineness from 1 µm to 150 µm can be used for operating temperatures of up to 120 ° C, depending on the material used.
Special manufacturing processes at aXpel injection AG complete our portfolio. We will help you to fully exploit the technical possibilities, taking into account the economic aspects. We will find the best method for tailor-made implementation of your project.
Injection molding with inserts
With hybrid technology, inserts (metal contacts, cables, sieves, threaded bushings or other inserts) are inserted into the tool either by hand or automatically. Inserts are also used to stabilize the shape, which is particularly recommended when the molded parts are subject to high mechanical stress. In the electrical industry, contact elements are mainly overmolded. In order to ensure the correct positioning of the inserts in the series process, the coordination between the tool and the insert must be very precise. In this process, metal or plastic parts are inserted into the tool as functional elements and overmolded.
Multi-component injection molding 2K / 3K
Plastic articles are increasingly being developed and manufactured from several components with the aim of obtaining "ready-to-install" series parts from an injection molding tool. The multi-component process is very efficient and the material properties of the materials used can be used even better. Compared to the normal injection molding process, with this process different materials or colors are injected into the tool one after the other. The components are connected to one another in different ways. Success depends on factors such as the connection properties of the plastics, the geometric shape and the processing parameters during injection molding. If you observe the procedural principles, the possible uses are almost inexhaustible.
In the in-mold labeling process, cut, printed plastic films, so-called labels, are precisely inserted into the injection molding tool using a handling device. Under use a vacuum or static charge, the labels are fixed and then back-injected with plastic. Using heat and pressure, the foils, which are precisely matched to the plastic, are welded to the plastic melt in the filling and holding phase to form a finished product. This technology is increasingly being combined with stack molds in order to increase output.