Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 2017

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: steel strip grades

Sortuj według:

Ogranicz wyniki do:

Material and technological issues in production of electrostatic precipitators collecting electrodes

Tracz P., Bacciarelli T., Wacławiak K., Kościelniak B.

Inżynieria Materiałowa

2017

Vol. 38, nr 4

198--204

Collecting electrodes are the most important components of electrostatic precipitators. Producers of ash removing devices use formed profiles of Sigma type. This topology of electrodes combines the following basic features: high elasticity and rigidity resulting in efficient ash removal; fast dynamic reaction to hitting; limited release, erosion of the ash into the gas because of profile of the electrodes. Collecting electrodes are thin-walled, steel, open profiles. Technological process of electrode manufacturing involves multistage roll forming of steel strip 1.25÷1.5 mm thick, with calibration. Steel grades are chosen for manufacturing according to temperature of operation and composition of industrial gas. Temperature of operation ranges between 150÷300°C. Most producers use DC01 steel grade for collecting electrodes. However properties of DC01 steel grade are not efficient to PN-EN 10130 + A1 regarding cold working. Such criteria are met by grades of DC02 and DC03. In this article the vital structural and material features of steel strips for roll forming process were discussed. Furthermore, the optimization of roll forming process of collecting plate of Sigma type by using dedicated CAD software COPRA RF 2013 has been shown. Numerical simulations lead to comparison between archive data for 13 stages roll forming and current settings for 18-stage one and proved, that today’s setting of roll forming reduces displacements by about 70%.

Porównano gatunki taśmy stalowej stosowanej do produkcji elektrod zbiorczych w elektrofiltrach suchych, scharakteryzowano proces technologiczny, wskazano tolerancje wykonania elektrod zbiorczych, porównano właściwości mechaniczne poszczególnych gatunków stali. Ponadto pokazano optymalizację procesu profilowania elektrody zbiorczej z zastosowaniem specjalistycznego oprogramowania.