AR079331A1 - METHOD OF MANUFACTURING STEEL PIPE WITHOUT SEWING OF WALL WALL - Google Patents
METHOD OF MANUFACTURING STEEL PIPE WITHOUT SEWING OF WALL WALLInfo
- Publication number
- AR079331A1 AR079331A1 ARP100104540A AR079331A1 AR 079331 A1 AR079331 A1 AR 079331A1 AR P100104540 A ARP100104540 A AR P100104540A AR 079331 A1 AR079331 A1 AR 079331A1
- Authority
- AR
- Argentina
- Prior art keywords
- tempering
- less
- heating
- wall
- tube
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000009958 sewing Methods 0.000 title 1
- 238000005496 tempering Methods 0.000 abstract 10
- 238000010438 heat treatment Methods 0.000 abstract 7
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000013021 overheating Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
Sometimiento de un tubo de acero con un espesor de pared superior a 30 mm a un tratamiento térmico de templado y revenido, el tubo se realiza a través de una etapa de fabricacion del tubo mediante trabajo en caliente, específicamente en un rango de temperatura de no menos de 750°C durante la etapa de calentamiento, llevando a cabo un templado y un paso de revenido como sigue, en el orden en que se describe, permitiendo realizar un rápido calentamiento uniforme en el templado para obtener un tubo de acero sin costura de pared gruesa con excelente dureza mediante el refinamiento de grano resultante, en donde (a) el paso de templado comprende el templado llevado a cabo mediante enfriamiento en agua luego de calentar el tubo de acero a una temperatura en el rango de no menos que 900°C a no más de 1000°C mediante el uso, como medio de calentamiento, de calentamiento por induccion a una frecuencia de no más de 200 Hz, y (b) el paso de revenido que comprende el revenido del tubo de acero a una temperatura en el rango de no menos que 500°C a no más de 750°C. En el paso de templado de (a), resulta preferido que después del calentamiento por induccion, se lleve a cabo un tratamiento de recalentado en el rango de temperatura de no menos que 900°C a no más de 1000°C por 10 minutos o menos, y subsecuentemente es llevado a cabo un templado por enfriado en agua.Submission of a steel tube with a wall thickness greater than 30 mm to a tempering and tempering heat treatment, the tube is made through a manufacturing stage of the tube by hot work, specifically in a temperature range of no less than 750 ° C during the heating stage, performing a tempering and a tempering step as follows, in the order in which it is described, allowing a rapid uniform heating in the tempering to be obtained to obtain a seamless steel tube of thick wall with excellent hardness through the resulting grain refinement, where (a) the tempering step comprises tempering carried out by cooling in water after heating the steel tube to a temperature in the range of not less than 900 ° C to no more than 1000 ° C by use, as a means of heating, of induction heating at a frequency of no more than 200 Hz, and (b) the tempering step comprising the tempering of the tube of a zero at a temperature in the range of not less than 500 ° C to no more than 750 ° C. In the tempering step of (a), it is preferred that after induction heating, an overheating treatment is carried out in the temperature range of not less than 900 ° C to no more than 1000 ° C for 10 minutes or less, and subsequently a quenching is carried out by cooling in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP100104540 AR079331A1 (en) | 2010-12-09 | 2010-12-09 | METHOD OF MANUFACTURING STEEL PIPE WITHOUT SEWING OF WALL WALL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP100104540 AR079331A1 (en) | 2010-12-09 | 2010-12-09 | METHOD OF MANUFACTURING STEEL PIPE WITHOUT SEWING OF WALL WALL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR079331A1 true AR079331A1 (en) | 2012-01-18 |
Family
ID=45841088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP100104540 AR079331A1 (en) | 2010-12-09 | 2010-12-09 | METHOD OF MANUFACTURING STEEL PIPE WITHOUT SEWING OF WALL WALL |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR079331A1 (en) |
-
2010
- 2010-12-09 AR ARP100104540 patent/AR079331A1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |