Hollow component prodn. by powder-slush process - involves heating and rotating filled mould until adhesion temp. of powder is reached, then increasing rotational speed of mould until powder is uniformly dispersed

Slush moulding of airbag cover with a tear line and slush moulded trim cover element

In a process for manufacturing interior cladding parts with deliberate weak fracture lines for an airbag inflation a slush moulding material(12) is rotationally moulded in a tool(10), then sintered, gelled and demoulded after cooling the tool. The deliberate weak line is produced by a rib(14) which reduces wall thickness when the tool is rotated in a specific way during powder feeding and/or positioned at a certain attitude during polymer gelation. A dashboard, door or side panel with the weak line for covering an airbag is claimed.

Hand held iron for melting and shaping wax - esp. for mfg. lost wax patterns used for casting dental prostheses etc.

Iron includes a handle fitted with a guide tube along which was in the form of rods, wire or powder is fed onto an electrically heated and interchangeable bit similar to a bit used in a solder iron. Tube is pref. round and ends just behind the bit; and the tube pref. has a slot via which a human finger or a feed roller can move the wax towards or away from the bit. Rapid mfr. of wax patterns or models, where different types of wax can easily be fed through the iron is obtd.

Patent DE3611148C2

Destillationsautomat mit Fraktionssammler

Destillationsautomat mit fraktionssammler