WELDING STUDS FOR DRAWN ARC STUD WELDING WITH CERAMIC FERRULE

Welding studs for drawn arc stud welding with ceramic ferrule Technical information Flux (aluminium ball) and weld pool backing According to DIN EN ISO 13918 (Welding – Studs and ceramic ferrules for arc stud welding) welding studs for drawn arc stud welding standardly have a pressed-in aluminium ball at the welding tip. This serves as flux for improved ignition and stabilization of the electric arc as well as for deoxidising the weld pool. (Exceptions: Insulation pins (type ISMS, ISA, ISB), bimetallic insulation pins (type VBS-MS, VBS) as well as balls do not have a pressed-in aluminium ball....

Surface protection Usually our welding studs are supplied in bright condition. On demand, the following surface treatments are possible (coating thicknesses according to DIN EN ISO 4042): 1. galvanically zinc-plated 2. hot zinc dipped 3. zinc flake coated flZnnc-600h 4. galvanically copper-base-coated and nickel-plated 5. galvanically copper-plated The surface treatments 1, 2 and 3 have a negative impact on the welding quality and are therefore mechanically removed from the welding tip. Through this: • the tolerance for the diameter at the welding tip (d2 resp. d1) changes to -0,6/+0,1 • the...

Shear connector (type SD1 and SD3 acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding CE-conform. Our shear connectors (head marking: SB (for S235J2+C470) resp. A (for 1.4301)) fulfil all essential requirements of regulation (EU) Nr. 305/2011/EU (Construction Products Regulation). European Technical Assessment ETA-11/0120 of the European Organisation for Technical Approvals (EOTA) issued by the German Institute of Civil Engineering (DIBt). Material (item number) Ceramic ferrule 1. Welding studs for drawn arc stud welding with ceramic ferrule

Material (item number) Ceramic ferrule *d3 and h are approximate values. Explanations to the used materials can be found in chapter 1.1. Special ceramic ferrules for shear connectors can be found in chapter 1.32, padded rings in chapter 1.31. Not listed dimensions and materials available upon request. 1. Welding studs for drawn arc stud welding with ceramic ferrule

Threaded stud with reduced shaft (type RD acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding The threaded stud type RD is threaded almost to the top of the welding tip which is reduced to about the core diameter of the thread. Thus the fillet diameter will only be slightly (0,5-1 mm) bigger than the external diameter of the thread. It is worthy of note that the reduction of the welding tip diminishes the bearing force of the stud by approximately 15% in comparison to the type MD/PD/FD. Thus - if necessary - the next bigger diameter should be chosen. Dimensions...

Threaded stud with practically complete thread (type MD acc. to DIN EN ISO 13918, before: type MPF) before welding / after welding before welding / after welding With the revision of April 2018 the stud type MD was included into DIN EN ISO 13918:2018 for the first time. The stud type MD acc. to DIN EN ISO 13918:2018 is mostly identic to the not standardised stud type MPF which we already produced for many years. There are only deviations regarding the dimension y (non-threaded part) for M6 (before: 3 mm), M10 (before: 7 mm) and M12 (before: 8 mm). The threaded stud type MD is threaded to approximately...

Threaded stud with partial thread (type PD acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding The threaded stud type PD has a partial thread. The diameter of the unthreaded stud section on the welding tip corresponds to the pitch diameter of the thread. Thus the diameter of the weld-fillet is approximately 3-4 mm larger than the external diameter of the thread. Dimensions d1 Material (item number) Ceramic ferrule = thread pitch acc. to DIN 13-1 *d3 and h are approximate values. In the item number XXX has to be replaced by the respective welding element length...

Threaded stud with full thread (type FD acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding The threaded stud type FD is threaded to the top of the welding tip. Thus after welding the stud is threaded up to the weld-fillet. The diameter of the weld-fillet is approximately 3-4 mm larger than the external diameter of the thread. Dimensions Material (item number) * *d3 and h are approximate values. In the item number XXX has to be replaced by the respective welding element length l 2 (e.g. 030 for 30 mm). Explanations to the used materials can be found in chapter...

Internally threaded stud (type ID acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding Material (item number) d3* h* Ceramic ferrule = thread pitch acc. to DIN 13-1 l2 < 20 mm, 3for l2 < 25 mm *d3 and h are approximate values. In the item number XXX has to be replaced by the respective welding element length l 2 (e.g. 030 for 30 mm). Explanations to the used materials can be found in chapter 1.1. Available surface treatments can be found in chapter 1.1. Not listed dimensions and materials available upon request. 2for 1. Welding studs for drawn arc stud welding...

Non-threaded stud (type UD acc. to DIN EN ISO 13918) before welding / after welding before welding / after welding Material (item number) Ceramic ferrule l2 < 20 mm *d2 and h are approximate values. In the item number XXX has to be replaced by the respective welding element length l 2 (e.g. 030 for 30 mm). Explanations to the used materials can be found in chapter 1.1. Available surface treatments can be found in chapter 1.1. Not listed dimensions and materials available upon request. 1. Welding studs for drawn arc stud welding with ceramic ferrule

Bimetallic threaded stud with practically complete thread (type MD-DUO, before: type MPF-DUO) before welding / after welding before welding / after welding The threaded stud type MD-DUO consists of two different materials. It is threaded to approximately the top of the welding tip. The diameter of the unthreaded stud section on the welding tip corresponds to the pitch diameter of the thread. Thus the diameter of the weld-fillet is approximately 3-4 mm larger than the external diameter of the thread. Dimensions d1 Ceramic ferrule Material (item number) d3 * *d3 and h are approximate values. In...