GB1285998A - A process for manufacturing alloy steel wires having low relaxation characteristics - Google Patents
A process for manufacturing alloy steel wires having low relaxation characteristicsInfo
- Publication number
- GB1285998A GB1285998A GB35934/69A GB3593469A GB1285998A GB 1285998 A GB1285998 A GB 1285998A GB 35934/69 A GB35934/69 A GB 35934/69A GB 3593469 A GB3593469 A GB 3593469A GB 1285998 A GB1285998 A GB 1285998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- cooled
- cooling rate
- austenitized
- reheated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
1285998 Heat-treating steel wire YAWATA SEITETSU K K and SUZUKI KINZOKU KOGYO K K 16 July 1969 [18 July 1968] 35934/69 Heading C7A Low alloy wire containing in percentage by weight C 0.5-0.95 Mn 0.3-1 Si 0.6-2.2 Fe balance with or without one or more of Cr 0.2-1.2 Mn -0À5 Ti -0À5 Nb -0À5 V -0À5 is in a continuous process, austenitized at 50‹ to 150‹C. above A 3 , air cooled to just above M 5 , the dimensions and/ or composition being such that the cooling rate is not less than the critical rate, reheated to produce a sorbitic structure, drawn and stress relieved. Alternatively where the desired cooling rate cannot be obtained by air cooling, the wire is cooled to 450‹-650‹C. in a salt or lead bath and held for at least 20 seconds before air cooling to room temperature and then reheating to produce the sorbitic structure. Preferably the wire is austenitized at 820‹-950‹C., cooled to 310-440‹C., reheated to 450‹-650‹C. and finally stress relieved at 220‹-550‹C. Preferably the cooling rate of the wire after austenitizing does not exceed 3‹C. /sec. in the absence of Cr, Mo, Ti, Nb or V, or 1À5‹C. /sec. in the presence of any of these, to avoid martensite formation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5043768 | 1968-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1285998A true GB1285998A (en) | 1972-08-16 |
Family
ID=12858823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35934/69A Expired GB1285998A (en) | 1968-07-18 | 1969-07-16 | A process for manufacturing alloy steel wires having low relaxation characteristics |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3647571A (en) |
| FR (1) | FR2016806A1 (en) |
| GB (1) | GB1285998A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400708A (en) * | 1971-09-02 | 1975-07-23 | Bekaert Sa Nv | Heat treatment of steel wire reinforcements |
| JPS5120163B2 (en) * | 1971-12-06 | 1976-06-23 | ||
| BE795955A (en) * | 1972-02-25 | 1973-08-27 | Monsanto Co | THERMAL AND MECHANICAL TREATMENT OF A STEEL WIRE |
| CA1045957A (en) * | 1973-12-17 | 1979-01-09 | Kobe Steel | High strength steel rod of large gage |
| US4123296A (en) * | 1973-12-17 | 1978-10-31 | Kobe Steel, Ltd. | High strength steel rod of large gauge |
| US4407683A (en) * | 1978-04-28 | 1983-10-04 | Neturen Company, Ltd. | Steel for cold plastic working |
| DE2917287C2 (en) * | 1978-04-28 | 1986-02-27 | Neturen Co. Ltd., Tokio/Tokyo | Process for the manufacture of coil springs, torsion bars or the like from spring steel wire |
| JPS5925024B2 (en) * | 1980-06-26 | 1984-06-13 | 株式会社神戸製鋼所 | steel for suspension springs |
| US4514237A (en) * | 1983-01-17 | 1985-04-30 | Olaf Nigol | Method of heat treating steel wire |
| JP2627373B2 (en) * | 1991-07-08 | 1997-07-02 | 金井 宏之 | High strength extra fine metal wire |
| DE19511057C1 (en) * | 1995-03-25 | 1996-05-23 | Riwo Drahtwerk Gmbh | Mfr. of scraping or brushing wire |
-
1969
- 1969-07-14 US US841343A patent/US3647571A/en not_active Expired - Lifetime
- 1969-07-16 GB GB35934/69A patent/GB1285998A/en not_active Expired
- 1969-07-18 FR FR6924658A patent/FR2016806A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US3647571A (en) | 1972-03-07 |
| FR2016806A1 (en) | 1970-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |