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Krotkova O.V.,OOO Gruppa Polimerteplo | Polyakov S.G.,Ukrainian Academy of Sciences | Pis'mennyi A.S.,Ukrainian Academy of Sciences | Panteleimonov E.A.,Ukrainian Academy of Sciences | Nyrkova L.I.,Ukrainian Academy of Sciences
Steel in Translation | Year: 2011

The influence of inductive heat treatment (by 2. 4-kHz current) on the properties of straight-seam steel 1. 4301 pipe is investigated. The influence of heat treatment on the resistance of pipe samples to intercrystallite corrosion, stress-corrosion cracking, and pitting corrosion is investigated, for samples that are motionless and samples passing through the inductors. © 2011 Allerton Press, Inc.

Kovriga V.V.,OOO Gruppa Polimerteplo | Pendik S.S.,OOO Gruppa Polimerteplo | Pyatin I.N.,OOO Gruppa Polimerteplo | Zaichikova I.V.,OOO Gruppa Polimerteplo
International Polymer Science and Technology | Year: 2014

A study has been made of the strength properties of linear and crosslinked polyolefins used for the manufacture of the feed pipes of heat supply networks in the wide temperature range of 20-170°C. It is shown that crosslinked materials possess a wider working temperature range.

Biserov V.T.,OOO Gruppa Polimerteplo | Biserova N.V.,OOO Gruppa Polimerteplo | Kovriga V.V.,OOO Gruppa Polimerteplo | Shvabauer V.V.,OOO Gruppa Polimerteplo
International Polymer Science and Technology | Year: 2014

An attempt has been made to replace a thick-walled pipe of large diameter (over 500 mm) with a thin-walled pipe of large diameter, reinforced with glass fibre mesh. It has been shown that, with single-layer reinforcement, it is possible to lower the weight of the pipes by 50% for pipes of up to 1000 mm diameter while retaining their hydraulic strength. © 2014 Smithers Information Ltd.

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