IT1185650B - Cast iron pipes prodn. - Google Patents
Cast iron pipes prodn.Info
- Publication number
- IT1185650B IT1185650B IT21673/85A IT2167385A IT1185650B IT 1185650 B IT1185650 B IT 1185650B IT 21673/85 A IT21673/85 A IT 21673/85A IT 2167385 A IT2167385 A IT 2167385A IT 1185650 B IT1185650 B IT 1185650B
- Authority
- IT
- Italy
- Prior art keywords
- sectional area
- cross
- single wires
- prodn
- wires
- Prior art date
Links
- 229910001018 Cast iron Inorganic materials 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 3
- 235000019892 Stellar Nutrition 0.000 abstract 1
Landscapes
- Resistance Heating (AREA)
Abstract
The radiant heater has a heating element composed of heating wire, which is laid on an insulating support dish and which forms a current-carrying cross-sectional area and a heat-radiating surface. The current-carrying cross-sectional area is divided between at least two single wires which are twisted together. The single wires have the same or different circular diameter. The single wires have a cross-sectional area which deviates from the circular form. The cross-sectional area is stellar or oval in shape. One or more single wires have a circular diamter and one or more single wires have a cross-sectional area which deviates from the circular form. The heating element is laid uncoiled and spirally on the insulating support. The wires are pre-oxidised.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21673/85A IT1185650B (en) | 1985-07-23 | 1985-07-23 | Cast iron pipes prodn. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21673/85A IT1185650B (en) | 1985-07-23 | 1985-07-23 | Cast iron pipes prodn. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8521673A0 IT8521673A0 (en) | 1985-07-23 |
IT1185650B true IT1185650B (en) | 1987-11-12 |
Family
ID=11185182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21673/85A IT1185650B (en) | 1985-07-23 | 1985-07-23 | Cast iron pipes prodn. |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1185650B (en) |
-
1985
- 1985-07-23 IT IT21673/85A patent/IT1185650B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8521673A0 (en) | 1985-07-23 |
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