BRPI0605644A - manufacture of high mechanical strength hot-rolled seamless tube for use in load-bearing suspension axles and high mechanical strength hot-rolled seamless tube for use in load-bearing suspension axles - Google Patents
manufacture of high mechanical strength hot-rolled seamless tube for use in load-bearing suspension axles and high mechanical strength hot-rolled seamless tube for use in load-bearing suspension axlesInfo
- Publication number
- BRPI0605644A BRPI0605644A BRPI0605644A BRPI0605644A BR PI0605644 A BRPI0605644 A BR PI0605644A BR PI0605644 A BRPI0605644 A BR PI0605644A BR PI0605644 A BRPI0605644 A BR PI0605644A
- Authority
- BR
- Brazil
- Prior art keywords
- continuous
- high mechanical
- mechanical strength
- load
- strength hot
- Prior art date
Links
Abstract
FABRICAçãO DE TUBO SEM COSTURA LAMINADO A QUENTE, COM ELEVADA RESISTêNCIA MECáNICA PARA USO EM EIXOS DE SUSPENSãO DE VEìCULOS DE CARGA E TUBO SEM COSTURA LAMINADO A QUENTE COM ELEVADA RESISTêNCIA MECáNICA PARA USO EM EIXOS DE SUSPENSãO DE VEìCULOS DE CARGA A composição química desenvolvida para garantir elevada resistência mecânica com boa tenacidade e boa soldabilidade em tubos de aço sem costura, na condição de laminado a quente e normalizado em linha ou em forno contínuo, proporciona menor custo do processo produtivo (antes somente possível na condição de temperado e revenido), além de afetar positivamente no "lead time". O processo de fabricação do tubo sem costura desde a produção de ferro gusa com carvão vegetal, fabricação do aço em convertedor LD, metalurgia secundária em forno panela, desgaseificação a vácuo, lingotamento contínuo com agitação eletromagnética, laminação a quente em laminador contínuo com mandris (Continuous Mandrel Mill) ou laminação automática (Plug Mill), com normalização em linha ou fora de linha em torno contínuo, garante a qualidade metalúrgica e as propriedades finais, necessárias para atender os esforços mecânicos a que os eixos estão expostos.MANUFACTURE OF HOT LAMINATED SEAMLESS PIPE WITH HIGH MECHANICAL RESISTANCE FOR USE ON LOAD VEHICLE SUSPENSION AXLES High mechanical strength with good toughness and good weldability in seamless steel pipes, in hot rolled condition and standardized in line or continuous furnace, provides lower cost of the production process (previously only possible in tempered and tempering condition), besides positively affect lead time. The process of manufacturing seamless pipe from the production of pig iron with charcoal, steel making in LD converter, secondary furnace metallurgy, vacuum degassing, continuous casting with electromagnetic stirring, hot rolling in continuous mandrel rolling mill ( Continuous Mandrel Mill) or Continuous Mandrel Mill with continuous or in-line standardization around continuous guarantees the metallurgical quality and final properties necessary to meet the mechanical stresses to which the shafts are exposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0605644A BRPI0605644B8 (en) | 2006-11-03 | 2006-11-03 | hot-rolled seamless tube manufacturing process, and hot-rolled seamless tube for use in cargo vehicle suspension axles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0605644A BRPI0605644B8 (en) | 2006-11-03 | 2006-11-03 | hot-rolled seamless tube manufacturing process, and hot-rolled seamless tube for use in cargo vehicle suspension axles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| BRPI0605644A true BRPI0605644A (en) | 2008-06-24 |
| BRPI0605644B1 BRPI0605644B1 (en) | 2019-12-03 |
| BRPI0605644B8 BRPI0605644B8 (en) | 2021-06-29 |
Family
ID=39529526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0605644A BRPI0605644B8 (en) | 2006-11-03 | 2006-11-03 | hot-rolled seamless tube manufacturing process, and hot-rolled seamless tube for use in cargo vehicle suspension axles |
Country Status (1)
| Country | Link |
|---|---|
| BR (1) | BRPI0605644B8 (en) |
-
2006
- 2006-11-03 BR BRPI0605644A patent/BRPI0605644B8/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0605644B1 (en) | 2019-12-03 |
| BRPI0605644B8 (en) | 2021-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25D | Requested change of name of applicant approved |
Owner name: VALLOUREC TUBOS DO BRASIL S.A. (BR/MG) |
|
| B15K | Others concerning applications: alteration of classification |
Ipc: B21B 17/04 (2006.01), B60G 1/00 (2006.01) |
|
| B07A | Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B25A | Requested transfer of rights approved |
Owner name: VALLOUREC SOLUCOES TUBULARES DO BRASIL S.A. (BR/MG |
|
| B09B | Patent application refused [chapter 9.2 patent gazette] | ||
| B12B | Appeal: appeal against refusal | ||
| B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/12/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/12/2019, OBSERVADAS AS CONDICOES LEGAIS |
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| B24B | Patent annual fee: requirement for complementing annual fee |
Free format text: COMPLEMENTAR A RETRIBUICAO DA(S) 13A E 15A ANUIDADE(S), DE ACORDO COM TABELA VIGENTE, REFERENTE A(S) GUIA(S) DE RECOLHIMENTO 29409161800244648 E 29409161929029518. |
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| B16C | Correction of notification of the grant |
Free format text: REF. RPI 2552 DE 03/12/2019 QUANTO A DATA DE DEPOSITO. |
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| B24E | Patent annual fee: resolution cancelled |
Free format text: ANULADA A PUBLICACAO CODIGO 24.2 NA RPI NO 2630 DE 01/06/2021. |