DIN - DVS 2207-11
Welding of thermoplastics - Heated tool welding of pipes, piping parts and panels made of PP
| Organization: | DIN |
| Publication Date: | 1 August 2008 |
| Status: | inactive |
| Page Count: | 12 |
| ICS Code (Welding processes): | 25.160.10 |
scope:
Scope of application
This technical code applies to the heated tool butt welding of panels according to DIN EN ISO 15013 and to the heated tool butt welding, heated tool sleeve welding and sleeve welding with an incorporated electric heating element of pipes and fittings which are made of PP-H, PP-B and PP-R polypropylenes according to DIN 8077, DIN 8078 and DIN 16962 and serve to transport gases, liquids and solids.
Paying attention to the following instructions, it may be assumed that a melt flow rate MFR1) 190/5 of 0.4 - 1.0 g/10 min is suitable. This range roughly corresponds to the melt flow rate MFR 230/ 2.16 of 0.2 - 0.6 g/10 min.
In the case of deviating melt flow rates, the proof of suitability must be provided in the tensile creep test according to DVS 2203-4 or Supplement 1.
1) old designation MFI = melt flow index
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