SFM (structural foam moulding)
SFM (structural foam moulding) is a low-pressure foam injection moulding technique for thermoplastics that is well suited for the production of large technical structural elements and housings. It is a particularly good choice for medium-sized series in which high demands are placed on the stiffness and surface quality of the product. Many thermoplastic materials are processed with this technique, such as polystyrene, polypropylene, polyethylene, ABS, ASA and polycarbonate/ASA.
HSV Technical Moulded Parts has various machines with shot weights of 1 to 30 kg and clamping plates with dimensions of up to 3 x 2 metres. Throughout its long history HSV TMP has gained extensive experience with this technique and has become one of the most knowledgeable specialists in its diverse range of applications. HSV TMP is also a pioneer in the use of new raw materials, such as biopolymers.
Important advantages of the SFM technique are:
-favourable stiffness-to-weight ratio
-thick-walled constructions and designs are possible (5 - 10 mm)
-no surface collapse adjacent to ribs or thick parts
-use of inserts is possible
-large product dimensions and weights of up to 30 kg
-flame retardance in accordance with UL94 V0
-electromagnetic shielding is possible
SFM parts can be painted easily, options range from a single-layer industrial paint to multiple-layer high gloss paint systems.
HSV TMP uses this technique to produce moulded parts for applications such as:
-fan housings
-housings for professional coffee machines
-moulded parts for professional sunbeds
-children's slides
-housings for technical laboratory equipment
-housings for medical equipment
-housings for industrial machines
