fischer fixing-systems main-catalogue Page 654
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Basic knowledge of fastening technology Working principles. There are different load transfer mechanisms which induce forces acting on the anchor in a building material. For frictional locking, the expanding part of the anchor is pressed against the drill hole wall. Sleeve anchor (e. g. FH II) Nylon anchor (e. g. SX) For form locking, the anchor geometry adapts to the subtrate’s form or drill hole shape (e. g. conical drill hole). Undercut anchor (e. g. FZA) Injection anchor (e. g. FIS V with cone drill PBB) 16 Resin anchor (e. g. Superbond RSB) Subsequent reinforcement connector with concrete reinforcing bars (e. g. FIS EM Plus) Expert tip · For many fixings, a combination of working principles occurs (e. g. in soft base material a combination of friction and form locking takes place). 654 For adhesive bonding, the load will be transferred by a combination of adhesion and micro-keying (e. g. using resin / injection mortar).
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