SIPERM®

SIPERM® sintered materials are available in various metallic and polymeric material versions to specifically cover different technical requirements. At Tridelta Siperm, porous materials are manufactured from stainless steel, bronze and polyethylene, which differ significantly in their physical and chemical properties. The suitable SIPERM® material is always selected based on the application and takes into account the medium, temperature range, mechanical load and the desired function of the component.

SIPERM® materials based on stainless steel are used where high thermal or mechanical stresses occur or where increased resistance to aggressive media is required. The porous structure remains stable even under demanding operating conditions and enables reliable function, for example in filtration, gas flushing or sensor protection.

Bronze-based sintered filters are typically used in applications with moderate temperatures and requirements for a uniform flow. Due to their homogeneous pore structure, they are particularly suitable for filter tasks with low pressure losses.

SIPERM® sintered materials made of polyethylene supplement the range of materials with a chemically resistant and comparatively lightweight alternative. These porous plastic materials are primarily used for corrosive media, lower operating temperatures or in applications with special requirements in terms of weight, electrical properties or series production. By combining the different material systems, the functional design of SIPERM® components can be specifically adapted to the respective application.

SIPERM® sintered materials are used in various designs to incorporate their functional properties into technical processes in a targeted manner. Depending on the application, porous plates, tubes, circular blanks or complex molded parts are used. These component geometries form the basis for filter elements, ventilation and fluidization components as well as for protective and functional elements in process or measurement technology applications. The geometry of the component directly influences the flow behavior, the pressure loss and the mechanical load capacity.

Compared to classic filter media such as woven or non-woven fabrics, porous sintered materials offer a high degree of design freedom. Function and form can be designed largely independently of each other, as the porosity is defined by the material and not by the component geometry. This means that large-area components with homogeneous flow can be realized as well as compact elements for limited installation spaces.

Another design advantage lies in the possibility of joining SIPERM® components together to form assemblies or combining them with solid components. For example, porous elements can be welded, joined or integrated into support structures without losing their functional properties. This enables application-specific solutions that fit perfectly into existing plants, equipment or systems and go beyond standard components.

Porous sintered materials take on clearly defined technical functions in industrial processes. They are not used as passive materials, but as active functional elements that specifically influence flows, distribute media or retain particles. SIPERM® materials are used wherever processes need to be stable, reproducible and controllable.

A central function is the filtration of gases and liquids. Due to the defined porosity, particles can be reliably separated while the medium flows evenly through the material. Compared to conventional filter media, porous sintered materials offer high mechanical stability and a consistent filter effect over a long service life. This is particularly important for continuously operated systems.

In gassing, degassing and fluidization applications, porous components ensure an even distribution of gases over large areas. This allows bulk materials to be loosened up, media to be homogenized or discharge problems in containers and silos to be reduced. The controlled flow helps to minimize process fluctuations and make efficient use of energy.

Other areas of application include mechanical sound absorption and the protection of sensitive sensors. The branched pore structure reduces flow noise and at the same time protects measuring systems from contamination or mechanical stress. Thanks to these versatile functions, SIPERM® sintered materials can be integrated into a wide range of industrial processes.

The use of porous sintered materials in industrial applications requires that their properties are reproducible and stable over the long term. SIPERM® materials are therefore designed and manufactured in such a way that porosity, flow behavior and mechanical properties are within defined tolerances. This is particularly relevant for processes where consistent results are required over long running times or large quantities.

One key aspect is the controlled production of the porous structure. Thanks to coordinated production parameters, materials with consistent properties can be produced, regardless of whether they are individual components, small batches or series production. This reproducibility forms the basis for reliable use in filtration, gassing or fluidization processes as well as in safety-relevant applications.

Quality assurance is carried out throughout the entire production process. Material and component properties are tested to ensure that defined requirements for flow, pore structure and strength are met. Standardized test procedures enable an objective evaluation of functional properties and create transparency for development, design and purchasing.

Thanks to the combination of reproducible production, defined testing and reliable manufacturing processes, SIPERM® sintered materials are suitable for both technically demanding individual applications and solutions suitable for series production. This facilitates the transfer of development projects to series production and supports long-term stable process control for the user.

The selection of the appropriate porosity is function-related and is based on the medium, the desired volume flow, the permissible pressure loss and the required separation or distribution effect. In the case of porous sintered materials, the pore structure is defined on the material side and formed uniformly over the entire component. This results in reproducible flow properties that do not depend on individual openings or channels. The component geometry nevertheless remains an important design parameter, as it influences the flow path, the load and the integration into the application. The porosity is therefore always determined in conjunction with the material, geometry and operating conditions.

The choice of material for porous sintered materials depends on the specific operating conditions of the application. In particular, the medium, the operating temperature, the applied pressure and possible chemical or mechanical loads are decisive. Cleaning, service life and process stability requirements also play an important role. Metallic SIPERM® materials are often used for higher temperatures or mechanical stresses, while polymer materials offer advantages for corrosive media or lower operating temperatures. The selection is always function-related in order to realize a permanently stable and economical solution.

The mechanical strength of porous sintered materials depends on several factors, including the material, porosity, component geometry and type of load. As a general rule, the mechanical strength decreases with increasing porosity, while the permeability increases. For this reason, the porosity is always selected so that it meets the functional requirements without unnecessarily reducing the mechanical stability.

Metallic SIPERM® sintered materials made of stainless steel or bronze offer high compressive and dimensional stability and are suitable for applications with static or dynamic loads. Porous plastic materials made of polyethylene have lower strengths, but offer advantages in terms of impact strength, weight and chemical resistance. In practice, the mechanical design is always application-specific and supported by suitable component geometries and installation situations.

Customized geometries are always used when standard components do not fully cover the functional or design requirements of an application. This is often the case with limited installation space, special installation situations or when several functions are to be combined in one component. Porous sintered materials offer the advantage that function and form can be designed independently of each other.

Adapted geometries can be used to specifically optimize flow guidance, installation and mechanical support. Customized solutions are useful for both individual applications and series projects, provided they contribute to improved function, greater process stability or a more economical overall solution.