Shaped refractory articles based on fibrous composite materials

Shaped refractory articles based on fibrous composite materials Refractories and Industrial Ceramics l~bl. 38, Nos. i -_." .t997 UDK 666,762.3-486 SHAPED REFRACTORY ARTICLES BASED ON FIBROUS COMPOSITE MATERIALS L. A. Karpets 1 and T. A. Kononova 1 Translated from Ogneupow i Tekhnicheskaya Kemmika, No. 1, pp. 31 - 32, January,, 1997. Origznal article submitted November 12, 1996. Production of shaped refracto~ articles based on fibrous composite materials (FCM) is brought to a commer- cial level at the Pe~'oural'sk silica brick plant. The use of molten periclase dust as a ceramic filler and the introduction of a silicon-containing admixture make it possible to increase the strength of the articles and to raise die working temperature to IO00~ At the Pervoural'sk silica brick plant, production of At present, experimental batches of jackets tbr thermo- couples are being tested in vacuumized mixers and gas-fired shaped refractory articles based on fibrous composite materi- als (FCM) is brought to a commercial level. The production aluminum-smelting furnaces at 700-800~ The tests are being conducted at the Kamensk-Ural'sk copper-smelting technology includes impregnation of the silica substance by a ceramic constituent binder. Until recently, chromium-magne- plant. Jackets for thermocouples are also being tested at the Ural aluminum plant. The articles are mounted in furnaces tbr sia spinel was used as a ceramic filler despite its negative ef- fect on humans (the spinel belongs to the group of materials smelting aluminum and in rotating furnaces for alumina pro- duction with an operating temperature up to 1000~ of second-class risk). The research laboratory of the Pervouml'sk silica brick Testing of jackets for thermocouples was successfully plant in cooperation with workers of the ~VbstIO (Eastern In- completed at the "vblzhskii automobile plant. The work car- stitute of Refractories) developed a new production technol- fled out in cooperation with this plant resuited in an order for ogy for FCM articles and replaced chromium-magnesia production of 4000 articles in 1997 and in an integrated pro- spinel by dust of molten periclase. In addition, a silicon-con- gram of scientific and technical cooperation in extending the taining admixture was introduced to increase the stren~h of assortment of articles based on fibrous composite materials. the articles and to raise their working temperature to 1000~ The laboratory of the Pervoural'sk silica brick plant con- The assortment and purpose of the FCM-based articles tinues work to improve the service properties of FCM-based are as follows: articles. A production technology, for articles having a poro- jackets for thermocouples of different dimensions (inter- sity up to 35% is now being developed. nal diameter from 14 to 50 mm, external diameter from 20 to 80 ram, length 300- 1200 ram), in accordance with technical specification TU 14-202-45- 95. The jackets work in heat TABLE 1. Physicochemical Parameters of FCM-based Articles units under steady-state and periodic conditions at tempera- According to According to tures up to 900~ Parameters the specification the specification TU 14-202-45-95 TU 14-8-430-89 metal-transporting pipes for cas'dng of nonferrous metals Mass fraction, %: in accordance to specification TU 14-8-430-89 (operating SiO 2 28 - 40 20-25 temperature about 800~ CaO, no more than 5 2 Parameters of FCM-based articles are presented in Ta- MgO, no less than 45 ble 1. FCM-based articles are readily amenable to turning. 4-8 P205 Using machining methods, a set of articles consisting of a Porosity, %, no more than 50 40 - 60 spherical support and a flange was produced for the vacuu- Thermal stabili D' ( i 200~ - air), mizer of the oxygen-converter shop at the Magnitogorsk iron thermal cycles, no less than 50 and steel works. The set has been running successfully at the Compressive strength limit, IvlPa, works from the middle 1996 instead of the fabric-based lami- no less than, for articles with external diameters of: nate equipment used earlier. < 10ram 3 10-25 mm 6 Pervoural'skii Dinasovyi Zavod Joint-Stock Company, Pervoural'sk, > 25 mm 8 Russia. 0~3-487 L'97.'3801-037S 18.00 .~ 1997 Plenurn PuNishing Corporation Refractories and Industrial Ceramics Springer Journals

Shaped refractory articles based on fibrous composite materials

1 page

Loading next page...
1 Page
Springer US
Copyright © 1997 by Plenum Publishing Corporation
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
Publisher site
See Article on Publisher Site

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial