EP0006085B1 - Verfahren zur Herstellung von Ankerstäben oder Ankerdrähten sowie Anwendung derselben für Erd- und Felsanker - Google Patents
Verfahren zur Herstellung von Ankerstäben oder Ankerdrähten sowie Anwendung derselben für Erd- und Felsanker Download PDFInfo
- Publication number
- EP0006085B1 EP0006085B1 EP79890009A EP79890009A EP0006085B1 EP 0006085 B1 EP0006085 B1 EP 0006085B1 EP 79890009 A EP79890009 A EP 79890009A EP 79890009 A EP79890009 A EP 79890009A EP 0006085 B1 EP0006085 B1 EP 0006085B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cold
- steel
- anchoring
- wires
- rods
- 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
- 239000011435 rock Substances 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 7
- 238000004873 anchoring Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000005482 strain hardening Methods 0.000 claims description 11
- 229910019932 CrNiMo Inorganic materials 0.000 claims description 8
- 238000005097 cold rolling Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims 2
- 238000004049 embossing Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 19
- 229910000734 martensite Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010622 cold drawing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/006—Anchoring-bolts made of cables or wires
Definitions
- the invention now seeks to provide a method for producing anchor rods or anchor wires of the type mentioned at the outset, which are distinguished by high corrosion resistance and strength properties corresponding to the intended use.
- the method according to the invention is essentially characterized in that rods or wires made of rustproof austenitic or ferritic steel are cold-hardened, preferably cold-wounded, cold-rolled, cold, in order to achieve a yield strength ratio R P 0.2 / R m of at least 0.7 embossed or cold stretched, after which any heat treatment is avoided after the cold forming.
- Rods or wires made of stainless austenitic or ferritic steel have not previously been strain hardened in a way that makes them appear suitable for ground anchors or rock anchors.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Extraction Processes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT3962/78 | 1978-05-31 | ||
| AT0396278A AT371840B (de) | 1978-05-31 | 1978-05-31 | Verfahren zur herstellung von ankerstaeben oder ankerdraehten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0006085A1 EP0006085A1 (de) | 1979-12-12 |
| EP0006085B1 true EP0006085B1 (de) | 1981-09-16 |
Family
ID=3557778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP79890009A Expired EP0006085B1 (de) | 1978-05-31 | 1979-05-30 | Verfahren zur Herstellung von Ankerstäben oder Ankerdrähten sowie Anwendung derselben für Erd- und Felsanker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0006085B1 (da) |
| JP (1) | JPS54158364A (da) |
| AT (1) | AT371840B (da) |
| DE (1) | DE2960819D1 (da) |
| DK (1) | DK151571C (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3320460C1 (de) * | 1983-06-07 | 1984-10-18 | Thyssen Industrie Ag, 4300 Essen | Nachgiebiger Gebirgsanker |
| FR2725730A1 (fr) * | 1994-10-12 | 1996-04-19 | Michelin & Cie | Fil en acier inoxydable pour renforcer le sommet des enveloppes de pneumatiques |
| JP7029544B2 (ja) * | 2018-05-23 | 2022-03-03 | ファ，マンチャオ | Ｎｐｒ非磁性ロックボルト鋼材料及びその生産方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1087151B (de) * | 1954-10-06 | 1960-08-18 | Kloeckner Huettenwerk Haspe Ag | Verwendung von Draehten oder Staeben aus Thomasstahl zur Herstellung von Betonbewehrungsmatten |
| DE1533992A1 (de) * | 1967-05-16 | 1970-02-19 | Rehm Gallus | Verfahren zur Erhoehung der Elastizitaetsgrenze,der Streckgrenze und gegebenenfalls der Bruchfestigkeit von Stahl durch Kaltverformung |
| DE1908951A1 (de) * | 1969-02-22 | 1970-09-03 | Gruen & Bilfinger Ag | Erdanker |
| CH509476A (de) * | 1969-06-09 | 1971-06-30 | Losinger Ag | Fels- oder Alluvialanker und Verfahren zu dessen Herstellung |
| BE795928A (fr) * | 1970-04-27 | 1973-06-18 | Celtite Sa | Perfectionnements aux tiges de scellement |
| DE2616599C3 (de) * | 1976-04-13 | 1987-01-22 | Mannesmann AG, 4000 Düsseldorf | Verwendung eines hochlegierten Stahles zum Herstelen von hochfesten, gegen Sauergaskorrosion beständigen Gegenständen |
-
1978
- 1978-05-31 AT AT0396278A patent/AT371840B/de not_active IP Right Cessation
-
1979
- 1979-05-30 EP EP79890009A patent/EP0006085B1/de not_active Expired
- 1979-05-30 DE DE7979890009T patent/DE2960819D1/de not_active Expired
- 1979-05-30 DK DK225379A patent/DK151571C/da not_active IP Right Cessation
- 1979-05-31 JP JP6806779A patent/JPS54158364A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54158364A (en) | 1979-12-14 |
| DK225379A (da) | 1979-12-01 |
| AT371840B (de) | 1983-08-10 |
| EP0006085A1 (de) | 1979-12-12 |
| ATA396278A (de) | 1982-12-15 |
| DK151571B (da) | 1987-12-14 |
| JPS5742691B2 (da) | 1982-09-10 |
| DE2960819D1 (en) | 1981-12-03 |
| DK151571C (da) | 1988-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AK | Designated contracting states |
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| 17P | Request for examination filed | ||
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
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