US3551216A - Method of producing a steel packing strip of high strength - Google Patents
Method of producing a steel packing strip of high strength Download PDFInfo
- Publication number
- US3551216A US3551216A US764955A US3551216DA US3551216A US 3551216 A US3551216 A US 3551216A US 764955 A US764955 A US 764955A US 3551216D A US3551216D A US 3551216DA US 3551216 A US3551216 A US 3551216A
- Authority
- US
- United States
- Prior art keywords
- strip
- packing strip
- high strength
- steel
- producing
- 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 - Lifetime
Links
- 238000012856 packing Methods 0.000 title description 15
- 229910000831 Steel Inorganic materials 0.000 title description 14
- 239000010959 steel Substances 0.000 title description 14
- 238000000034 method Methods 0.000 title description 10
- 238000000137 annealing Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 239000011572 manganese Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- 229910052748 manganese Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
Definitions
- an elongation 6 of 10 to 17% and a yield point ratio of 0.86 to 0.98 is produced from a hot rolled steel strip of a composition of about 0.35 to 0.80% C., 0.15 to 0.50% Si, possibly as much as 0.045% of P and S, 0.4% to 2% Mn and/r Ni, and the balance substantially all iron of sorbitic or intermediate stage structure after hot rolling to the desired thickness of about 0.30 to 1.30 mm. is cold rolled and is finally subjected to a continuous brief recovery annealing with the beginning of recrystallation at a temperature between about 500 and 680 C., Mn and/or Ni content decreasing with increase in the content of carbon.
- the invention relates to a process for producing a steel packing strip of high strength with a tensile strength of about 95 to 125 kp./mm. an elongation 6 of to 17% and a yield point ratio of 0.86 to 0.98.
- a disadvantage of packing strips with a tensile strength of less than 95 kp./mm. is that they require a quite large cross section and for the same reason also substantial weight, in order to have adequate packing characteristics.
- a further disadvantage in the production of packing strips with a tensile strength of more than 95 kp./mm. is that two heat treatments are required, so that a yield point of only 0.75 to 0.85 is obtained.
- the purpose of the present invention is to overcome these disadvantages in the known processes for the production of packing strips and to produce a packing strip which has a tensile strength of around 95 to 125 kp./ mmP, an elongation 6 of 10 to 17% and a yield point ratio of 0.86 to 0.98, which can be carried out in a simple manner with only one heat treatment.
- the carbon content of the steel strip used is varied inversely with that of the manganese and/or nickel content. Because the carbon content influences strongly the Working in hot and cold rolling, it is advantageous for the production of packing strip according to the invention to use a steel strip With a carbon content of 0.40% and manganese or nickel of 1.5 to 2%.
- a further advantageous embodiment of the process according to the invention is to wind up the steel strip after the hot rolling at a reeling temperature of between 500 and 620 C.
- the advantages achieved according to the process of the invention are especially that, for the production of a high yield point ratio of about 0.86 to 0.98 with a simultaneous elongation of 10 to 17% and a tensile strength of 95 kp./mm. only one heat treatment for a very short time and at a reduced temperature is necessary, and, in contrast to a packing strip with a tensile strength of less than 95 kp./mm. and an elongation of 6 to 10%, the new packing strip can be more highly loaded, so as to save weight.
- a steel strip with a composition of 0.47% C. 0.018% P 0.21% Si 0.014% S 1.43% Mn balance iron is hot rolled to 1.50 mm. and is reeled at a temperature of about 560 to 580 C., so that for the subsequent cold rolling a sorbitic starting structure is obtained. Without difiiculty (such as production of cracks in the edges of the strip) this hot strip is cold rolled to 0.5 or 0.8 mm. and finally in an annealing oven is subjected in the presence of a neutral protective gas at a temperature of 600 C. for two minutes to a recovery annealing (with a beginning of recrystallization). After this annealing treatment a finished packing strip with a full mechanical characteristic is measured:
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671608163 DE1608163C3 (de) | 1967-11-23 | 1967-11-23 | Verwendung eines Stahls als hochfestes Verpackungsband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3551216A true US3551216A (en) | 1970-12-29 |
Family
ID=5681488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US764955A Expired - Lifetime US3551216A (en) | 1967-11-23 | 1968-10-03 | Method of producing a steel packing strip of high strength |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3551216A (enrdf_load_stackoverflow) |
| BE (1) | BE724160A (enrdf_load_stackoverflow) |
| FR (1) | FR1592721A (enrdf_load_stackoverflow) |
| GB (1) | GB1228929A (enrdf_load_stackoverflow) |
| SE (1) | SE346332B (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855013A (en) * | 1972-03-07 | 1974-12-17 | Licencia Talalmanyokat | Quick heat treatment of steels |
| US4816090A (en) * | 1986-09-10 | 1989-03-28 | The Broken Hill Proprietary Co., Ltd. | Heat treated cold rolled steel strapping |
| EP1428895A1 (en) * | 2002-12-09 | 2004-06-16 | Illinois Tool Works Inc. | Steel strap composition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU671246B2 (en) * | 1994-04-28 | 1996-08-15 | Illinois Tool Works Inc. | Method and apparatus for an improved steel strap |
-
1968
- 1968-10-03 US US764955A patent/US3551216A/en not_active Expired - Lifetime
- 1968-11-19 GB GB1228929D patent/GB1228929A/en not_active Expired
- 1968-11-20 BE BE724160D patent/BE724160A/xx not_active IP Right Cessation
- 1968-11-21 FR FR1592721D patent/FR1592721A/fr not_active Expired
- 1968-11-25 SE SE16003/68A patent/SE346332B/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855013A (en) * | 1972-03-07 | 1974-12-17 | Licencia Talalmanyokat | Quick heat treatment of steels |
| US4816090A (en) * | 1986-09-10 | 1989-03-28 | The Broken Hill Proprietary Co., Ltd. | Heat treated cold rolled steel strapping |
| EP1428895A1 (en) * | 2002-12-09 | 2004-06-16 | Illinois Tool Works Inc. | Steel strap composition |
| US6814817B2 (en) | 2002-12-09 | 2004-11-09 | Illinois Tool Works, Inc. | Steel strap composition |
Also Published As
| Publication number | Publication date |
|---|---|
| BE724160A (enrdf_load_stackoverflow) | 1969-05-20 |
| FR1592721A (enrdf_load_stackoverflow) | 1970-05-19 |
| DE1608163B2 (de) | 1975-04-30 |
| DE1608163A1 (de) | 1973-10-18 |
| SE346332B (enrdf_load_stackoverflow) | 1972-07-03 |
| GB1228929A (enrdf_load_stackoverflow) | 1971-04-21 |
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