Novel mold lets soft foam be thick, thin—or both  

Oleh:

Defosse, Matt

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Modern Plastics Worldwide vol. 86 no. 7 (Jul. 2009), page 14.
Topik: Plastics; Injection Molding; Varysoft; Polypropylene (PP)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM68.8 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In what is being claimed as an injection molding first, a slide-table mold developed by Swiss moldmaker Georg Kaufmann Formenbau AG (Busslingen) enables processors to vary the thickness of a layer of soft-touch foam exactly where it is required on a part, via the mold’s geometry. ‘Varysoft’ is the name the moldmaker has affixed to its novel system. The company is well known in moldmaking, especially for molds used to process door panels and other automotive interior components. For its newest feat, the company built a mold with two cavities, one for the conventional injection molding of a supporting structure (typically polypropylene) and one for preforming of a decorative material—film, fabric, or imitation leather. For the foam layer, the machine needs either an additional injection unit for expandable thermoplastic elastomer (TPE) or a polyurethane (PUR) processing unit with PUR mixing head.

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