US20030006583A1 - Gliding edge profile - Google Patents
Gliding edge profile Download PDFInfo
- Publication number
- US20030006583A1 US20030006583A1 US10/147,428 US14742802A US2003006583A1 US 20030006583 A1 US20030006583 A1 US 20030006583A1 US 14742802 A US14742802 A US 14742802A US 2003006583 A1 US2003006583 A1 US 2003006583A1
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- United States
- Prior art keywords
- gliding
- edge profile
- gliding edge
- component parts
- profile
- Prior art date
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- Abandoned
Links
- 238000003466 welding Methods 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000010894 electron beam technology Methods 0.000 claims abstract description 3
- 238000004873 anchoring Methods 0.000 claims description 27
- 239000011651 chromium Substances 0.000 claims description 20
- 229910052750 molybdenum Inorganic materials 0.000 claims description 20
- 229910052804 chromium Inorganic materials 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- 229910052721 tungsten Inorganic materials 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 14
- 239000011733 molybdenum Substances 0.000 claims description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 13
- 239000010937 tungsten Substances 0.000 claims description 13
- 229910052720 vanadium Inorganic materials 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000011572 manganese Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 4
- 230000003245 working effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010791 quenching Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/04—Structure of the surface thereof
- A63C5/048—Structure of the surface thereof of the edges
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
Definitions
- the present invention relates to a gliding edge profile for winter sports equipment, such as, for example, skis, snowboards and sledges.
- Profiles of this type are normally made of steel and exhibit a generally L-shaped cross section with a relatively greater leg and a relatively smaller leg.
- the leg of greater cross section has the gliding edge and terminates flush with the bottom of a ski, whereas the leg with smaller cross section provides an anchor of the gliding profile between the runner base and a runner base underlayer. Accordingly, the anchoring leg and the gliding edge leg are exposed to different stress conditions.
- the gliding edge leg is subjected to particular stress that requires a high degree of wear resistance, hardness and surface quality. Another important factor to consider here is maintenance-free construction because the service life decreases when the edges are sharpened as is typically done to remove rust or to re-establish good guide properties.
- the gliding edge leg Despite a high wear resistance, it should be possible to easily grind the gliding edge leg to a level of the runner base surface to realize a completely flat running surface.
- the other leg of the edge profile, serving as anchoring profile, is subjected to much less stress because it is disposed inside the ski and therefore does neither come into contact with the atmosphere nor with snow or ice or with dispersed grit and partially snow-free ground.
- chromium steels are especially useful as material for gliding edges. Although chromium steels show high corrosion resistance and wear resistance as well as high hardness, their relatively low ductility is disadvantageous. In order to permit production of gliding edge profiles through rolling or drawing, quenchable and temperable steels are typically used which receive their wear resistance and hardness through a final heat treatment.
- German Patent Document DE 40 00 744 describes a process for the heat treatment of gliding edge legs in situ, whereby the zone about the gliding edge is heated locally by means of a laser beam to a hardness temperature and is subsequently immediately locally quenched to transform into a martensite structure.
- This process requires a complex apparatus and still cannot ensure reproducible properties of the gliding edge.
- particular measures are necessary, in addition to local quenching, to carry off heat which is generated during welding.
- This process is capable to produce a gliding edge with high hardness and wear resistance in the area of the actual gliding edge as well as comparably high toughness, especially of the anchoring profile. Still, as a consequence of the required cooling action during the heat treatment, inner tension is encountered in the edge-near region to lead to a so-called sickle distortion, i.e., a highly disadvantageous flexure of the gliding edge profile.
- German Patent Document DE 42 18 099 A1 limits the hardness gradient across the cross section and length of the gliding edge profile to less than 2 HRC.
- the process described therein employs thus a two-step heat treatment which involves a quenching and tempering of the entire gliding edge profile to provide a martensitic structure, and a subsequent partial pearlitization at a temperature as constant as possible across the length of the profile. Any sickle distortion remaining after the partial pearlitization is eliminated through a subsequent deformation by bending with constant degree of bending stretching over the length of the profile. This process is extremely complicated and still is unable to provide the gliding edge profile with the necessary corrosion resistance to eliminate the need for frequent re-grinding and sharpening.
- German Patent Document DE 198 08 276 which describes the use of a gliding edge material of chromium steel alloy.
- the hardness and wear resistance as well as vibration behavior and corrosion resistance depends in the quenched and tempered state, in particular toward chlorides and nitrates, on the presence of carbon, nitrogen, molybdenum and chromium.
- a gliding edge profile for winter sports equipment includes two component parts connected at an angle to one another along their longitudinal edges.
- the present invention resolves prior art problems by providing two component parts which can be made of different materials and are interconnected to form, for example, a L-shaped configuration, whereby one component part is the gliding edge leg and the other component part represents the anchoring leg.
- the gliding edge leg of rust-free material and wear-resistant material, preferably chromium steel
- the anchoring leg may be made of a simple carbon steel.
- the gliding edge leg may be a chromium steel with
- the balance being iron.
- chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon.
- a currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten.
- a particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten, satisfies the following condition:
- Joining of the component parts or profile legs can be realized through laser beam welding, electron-beam welding or plasma jet welding. In this way, heat is introduced in a narrow locally restricted area so that the heat impact zone is small. Tempering may follow the welding process to eliminate structural changes and also welding tension accompanying the welding operation in the heat impact zone.
- the component parts may be properly guided by a profile guide for correct positioning during welding operation.
- the component parts are welded together by a welding seam at a maximum width of 0.5 mm.
- welding heat is small enough to realize a rapid cooling already in the area of the profile guide so that a distortion of the finished glide edge profile as a result of heat and undesired structural changes in the area of the gliding edge are prevented.
- a gliding edge profile may finally be subjected also to a common quenching and tempering treatment.
- Another option involves the production of the gliding edge leg from an already hardened component part, for example, a square wire so that there is only a need to quench and temper the complete gliding edge profile after the welding operation.
- the welding seam may have gaps to improve the bending capability of the gliding edge profile. Such gaps or breaches can be realized by simply cutting the welding current. The bending capability can be further enhanced, when forming the anchoring leg with openings which may or may not be open toward the welding edge or welding seam.
- FIG. 1 is a cross section of a first embodiment of a gliding edge profile according to the present invention
- FIG. 2 is a cross section of a second embodiment of a gliding edge profile according to the present invention.
- FIG. 3 is a cross section of a third embodiment of a gliding edge profile according to the present invention.
- FIG. 4 is a fragmentary perspective illustration of a fourth embodiment of a gliding edge profile according to the present invention.
- FIG. 5 is a fragmentary perspective illustration of a fifth embodiment of a gliding edge profile according to the present invention.
- FIG. 1 shows a cross section of a first embodiment of a gliding edge profile according to the present invention, including an anchoring leg 1 for attachment of the gliding edge profile in the body of a ski (not shown), and a gliding edge leg 2 of rectangular cross section and forming a gliding edge 3 for the ski.
- the anchoring leg 1 and the gliding edge leg 2 are connected together by a welding seam 4 .
- FIG. 2 shows a gliding edge profile in which the gliding edge leg 2 has an inner flank 5 which is inclined inwardly toward the anchoring leg 1
- FIG. 3 shows a gliding edge profile in which the gliding edge leg 2 has an outer flank 6 which is inclined outwardly away from the anchoring leg 1 and forms with the gliding edge 3 a slight angle.
- FIG. 4 shows another embodiment of a gliding edge profile in which the anchoring leg 1 is formed with openings 8 (only one opening 8 is shown here by way of example) and openings 11 (only one opening 11 is shown here by way of example) to improve attachment of the edge profile to the body of the ski.
- the openings 8 have a closed border 9 whereas the openings 11 are open toward the free leg edge 10 of the anchoring leg 1 .
- FIG. 5 shows an embodiment of a gliding edge profile in which the anchoring leg 1 is formed in addition to the openings 8 with openings 12 which are open toward the welding seam 4 and the gliding edge leg 2 , as indicated by reference numeral 15 .
- the anchoring leg 1 is formed with any combination of the openings 8 , 11 , 12 .
- the welding seam 5 is breached in addition to gap 15 by gaps 14 which divide the welding seam 5 into several weld sections 13 and are aligned with the gap 15 of opening 12 of the anchoring leg 1 .
- the openings 8 , 11 , 12 in the anchoring leg 1 and the gaps 14 in the welding seam 4 provide the gliding edge profile with a high bending capability so that the ski exhibits a high elasticity.
- the gliding edge leg 2 may be a chromium steel of a following composition, by weight percent: 0.1 to 1.1% of carbon, 4.0 to 18% of chromium, 0.1 to 4.0% of molybdenum and/or 0.1 to 2.4% of vanadium and/or up to 3.0% of tungsten, up to 2.0% of manganese, up to 2.0% of silicon, the balance being iron.
- a chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon.
- a currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten.
- a particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten satisfies the following condition:
- chromium steel alloys K1 to K6 which, apart from the chromium steel allow disclosed in German Pat. Document DE 198 08 276 A1, are suitable as material for the gliding edge leg, wherein designations F 1 to F 5 indicate materials for the anchoring leg: Chemical Composition [weight %] Al- C Si Mn Cr Mo Ni V W loy (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%)
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Laser Beam Processing (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
A gliding edge profile for winter sports equipment, such as7 for example, skis, snowboards and sledges, includes two component parts connected at an angle to one another along their longitudinal edges. The component parts are made of different materials to suit their properties to the stress at hand and can be joined together by laser beam welding, electron-beam welding or plasma jet welding so as to hardened and/or tempered at least in the area of the welding seam.
Description
- This application claims the priority of German Patent Application Serial No. 101 23 674.3, filed May 16, 2001, pursuant to 35 U.S.C. 119(a)-(d), the subject matter of which is incorporated herein by reference.
- The present invention relates to a gliding edge profile for winter sports equipment, such as, for example, skis, snowboards and sledges.
- Profiles of this type are normally made of steel and exhibit a generally L-shaped cross section with a relatively greater leg and a relatively smaller leg. The leg of greater cross section has the gliding edge and terminates flush with the bottom of a ski, whereas the leg with smaller cross section provides an anchor of the gliding profile between the runner base and a runner base underlayer. Accordingly, the anchoring leg and the gliding edge leg are exposed to different stress conditions. The gliding edge leg is subjected to particular stress that requires a high degree of wear resistance, hardness and surface quality. Another important factor to consider here is maintenance-free construction because the service life decreases when the edges are sharpened as is typically done to remove rust or to re-establish good guide properties. Despite a high wear resistance, it should be possible to easily grind the gliding edge leg to a level of the runner base surface to realize a completely flat running surface. The other leg of the edge profile, serving as anchoring profile, is subjected to much less stress because it is disposed inside the ski and therefore does neither come into contact with the atmosphere nor with snow or ice or with dispersed grit and partially snow-free ground.
- In view of their particular stress profile, chromium steels are especially useful as material for gliding edges. Although chromium steels show high corrosion resistance and wear resistance as well as high hardness, their relatively low ductility is disadvantageous. In order to permit production of gliding edge profiles through rolling or drawing, quenchable and temperable steels are typically used which receive their wear resistance and hardness through a final heat treatment.
- German Patent Document DE 40 00 744 describes a process for the heat treatment of gliding edge legs in situ, whereby the zone about the gliding edge is heated locally by means of a laser beam to a hardness temperature and is subsequently immediately locally quenched to transform into a martensite structure. This process requires a complex apparatus and still cannot ensure reproducible properties of the gliding edge. In order to realize the required hardness temperature while still preventing ingress of heat into the depth of the gliding edge, particular measures are necessary, in addition to local quenching, to carry off heat which is generated during welding. This process is capable to produce a gliding edge with high hardness and wear resistance in the area of the actual gliding edge as well as comparably high toughness, especially of the anchoring profile. Still, as a consequence of the required cooling action during the heat treatment, inner tension is encountered in the edge-near region to lead to a so-called sickle distortion, i.e., a highly disadvantageous flexure of the gliding edge profile.
- In order to counter this sickle formation, German Patent Document DE 42 18 099 A1 limits the hardness gradient across the cross section and length of the gliding edge profile to less than 2 HRC. The process described therein employs thus a two-step heat treatment which involves a quenching and tempering of the entire gliding edge profile to provide a martensitic structure, and a subsequent partial pearlitization at a temperature as constant as possible across the length of the profile. Any sickle distortion remaining after the partial pearlitization is eliminated through a subsequent deformation by bending with constant degree of bending stretching over the length of the profile. This process is extremely complicated and still is unable to provide the gliding edge profile with the necessary corrosion resistance to eliminate the need for frequent re-grinding and sharpening.
- Another approach to eliminate the need for a complicated apparatus in order to implement a particular heat treatment, and the need for a frequent re-grinding, is disclosed in German Patent Document DE 198 08 276 which describes the use of a gliding edge material of chromium steel alloy. The hardness and wear resistance as well as vibration behavior and corrosion resistance depends in the quenched and tempered state, in particular toward chlorides and nitrates, on the presence of carbon, nitrogen, molybdenum and chromium.
- However, for a number of reasons, the various proposals are endowed with drawbacks and shortcomings relating for example to manufacturing techniques or to the effect that is hoped to be obtained but may not always be realized.
- It would therefore be desirable and advantageous to provide an improved gliding edge profile which obviates prior art shortcomings and is easy to make while still being reliable in operation.
- According to one aspect of the present invention, a gliding edge profile for winter sports equipment, includes two component parts connected at an angle to one another along their longitudinal edges.
- The present invention resolves prior art problems by providing two component parts which can be made of different materials and are interconnected to form, for example, a L-shaped configuration, whereby one component part is the gliding edge leg and the other component part represents the anchoring leg. Thus, it is possible to make the gliding edge leg of rust-free material and wear-resistant material, preferably chromium steel, whereas the anchoring leg may be made of a simple carbon steel.
- The gliding edge leg may be a chromium steel with
- 0.1 to 1.1% of carbon
- 4.0 to 18% of chromium
- 0.1 to 4.0% of molybdenum and/or
- 0.1 to 2.4% of vanadium and/or
- up to 3.0% of tungsten
- up to 2.0% of manganese
- up to 2.0% of silicon
- the balance being iron.
- Currently preferred is a chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon.
- A currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten.
- A particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten, satisfies the following condition:
- (%C)/(%Cr)+(%Mo)=0.02 to 0.07, and/or
- (%C)/(%Cr)+(%Mn)+(%Mo)+(%V)+(%W)=0.65 to 0.98.
- Production of a gliding edge profile made of two simple component parts through a cold-rolling, drawing or roll-forming process overcomes the limits as encountered during manufacture of a L-shaped profile as far as the respective cross section of the profile leg is concerned. In this way, it is especially possible to construct the anchoring leg in comparison to conventional gliding edge profiles with, for example, a 50% reduction in thickness and a greater width to realize a better anchoring in the body of the ski. Moreover, it is also easily possible to fabricate the component parts by simply cutting respectively dimensioned bands to size or severing respective strips from a metal sheet.
- Joining of the component parts or profile legs can be realized through laser beam welding, electron-beam welding or plasma jet welding. In this way, heat is introduced in a narrow locally restricted area so that the heat impact zone is small. Tempering may follow the welding process to eliminate structural changes and also welding tension accompanying the welding operation in the heat impact zone.
- The component parts may be properly guided by a profile guide for correct positioning during welding operation. Suitably, the component parts are welded together by a welding seam at a maximum width of 0.5 mm. In this way, welding heat is small enough to realize a rapid cooling already in the area of the profile guide so that a distortion of the finished glide edge profile as a result of heat and undesired structural changes in the area of the gliding edge are prevented.
- A gliding edge profile may finally be subjected also to a common quenching and tempering treatment. Another option involves the production of the gliding edge leg from an already hardened component part, for example, a square wire so that there is only a need to quench and temper the complete gliding edge profile after the welding operation.
- According to another feature of the present invention, the welding seam may have gaps to improve the bending capability of the gliding edge profile. Such gaps or breaches can be realized by simply cutting the welding current. The bending capability can be further enhanced, when forming the anchoring leg with openings which may or may not be open toward the welding edge or welding seam.
- Other features and advantages of the present invention will be more readily apparent upon reading the following description of currently preferred exemplified embodiments of the invention with reference to the accompanying drawing, in which:
- FIG. 1 is a cross section of a first embodiment of a gliding edge profile according to the present invention;
- FIG. 2 is a cross section of a second embodiment of a gliding edge profile according to the present invention;
- FIG. 3 is a cross section of a third embodiment of a gliding edge profile according to the present invention;
- FIG. 4 is a fragmentary perspective illustration of a fourth embodiment of a gliding edge profile according to the present invention; and
- FIG. 5 is a fragmentary perspective illustration of a fifth embodiment of a gliding edge profile according to the present invention.
- Throughout all the Figures, same or corresponding elements are generally indicated by same reference numerals.
- Turning now to the drawing, and in particular to FIG. 1, there is shown a cross section of a first embodiment of a gliding edge profile according to the present invention, including an anchoring
leg 1 for attachment of the gliding edge profile in the body of a ski (not shown), and agliding edge leg 2 of rectangular cross section and forming agliding edge 3 for the ski. The anchoringleg 1 and thegliding edge leg 2 are connected together by awelding seam 4. FIG. 2 shows a gliding edge profile in which thegliding edge leg 2 has aninner flank 5 which is inclined inwardly toward the anchoringleg 1, whereas FIG. 3 shows a gliding edge profile in which thegliding edge leg 2 has anouter flank 6 which is inclined outwardly away from the anchoringleg 1 and forms with the gliding edge 3 a slight angle. - FIG. 4 shows another embodiment of a gliding edge profile in which the
anchoring leg 1 is formed with openings 8 (only oneopening 8 is shown here by way of example) and openings 11 (only oneopening 11 is shown here by way of example) to improve attachment of the edge profile to the body of the ski. Theopenings 8 have a closedborder 9 whereas theopenings 11 are open toward thefree leg edge 10 of the anchoringleg 1. - FIG. 5 shows an embodiment of a gliding edge profile in which the
anchoring leg 1 is formed in addition to theopenings 8 withopenings 12 which are open toward thewelding seam 4 and thegliding edge leg 2, as indicated byreference numeral 15. Of course, it is also possible to make a gliding edge profile in which theanchoring leg 1 is formed with any combination of theopenings - As further shown in FIG. 5, the
welding seam 5 is breached in addition togap 15 bygaps 14 which divide thewelding seam 5 intoseveral weld sections 13 and are aligned with thegap 15 of opening 12 of the anchoringleg 1. - The
openings leg 1 and thegaps 14 in thewelding seam 4 provide the gliding edge profile with a high bending capability so that the ski exhibits a high elasticity. - The
gliding edge leg 2 may be a chromium steel of a following composition, by weight percent: 0.1 to 1.1% of carbon, 4.0 to 18% of chromium, 0.1 to 4.0% of molybdenum and/or 0.1 to 2.4% of vanadium and/or up to 3.0% of tungsten, up to 2.0% of manganese, up to 2.0% of silicon, the balance being iron. Currently preferred is a chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon. A currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten. - A particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten satisfies the following condition:
- (%C)/(%Cr)+(%Mo)=0.02 to 0.07, and/or
- (%C)/(%Cr)+(%Mn)+(%Mo)+(%V)+(%W)=0.65 to 0.98.
- The following table indicates chromium steel alloys K1 to K6 which, apart from the chromium steel allow disclosed in German Pat. Document DE 198 08 276 A1, are suitable as material for the gliding edge leg, wherein designations F1 to F5 indicate materials for the anchoring leg:
Chemical Composition [weight %] Al- C Si Mn Cr Mo Ni V W loy (%) (%) (%) (%) (%) (%) (%) (%) K1 0.36 1.10 0.40 5.00 1.30 — 0.40 — Gliding Edge Leg1 K2 0.38 0.40 0.60 16.0 1.00 0.80 — — Gliding Edge Leg1 K3 0.46 0.40 0.40 13.0 — — — — Gliding Edge Leg1 K4 0.53 0.90 0.50 8.30 1.20 — — 1.20 Gliding Edge Leg1 K5 0.90 0.50 0.40 17.5 1.10 — 0.10 — Gliding Edge Leg1 K6 1.00 0.40 0.40 4.00 2.70 — 2.40 2.90 Gliding Edge Leg1 F1 0.04 0.50 1.40 18.5 — 9.50 — — Anchoring Leg2 F2 0.05 0.40 0.40 16.5 — — — — Anchoring Leg2 F3 0.15 0.20 0.50 — — — — — Anchoring Leg2 F4 0.38 0.40 0.60 16.0 1.00 0.80 — — Anchoring Leg2 F5 0.69 0.30 0.70 — — — — — Anchoring Leg2 - While the invention has been illustrated and described as embodied in gliding edge profile, it is not intended to be limited to the details shown since various modifications and structural changes may be made without departing in any way from the spirit of the present invention. The embodiments were chosen and described in order to best explain the principles of the invention and practical application to thereby enable a person skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.
- What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and their equivalents:
Claims (20)
1. A gliding edge profile for winter sports equipment, comprising first and second component parts connected at an angle to one another along their longitudinal edges.
2. The gliding edge profile of claim 1 , wherein the component parts are connected together to form a L-shaped configuration.
3. The gliding edge profile of claim 1 , wherein the component parts are made of different materials.
4. The gliding edge profile of claim 1 , wherein the first component part has a gliding edge and is made of at least one material selected from the group consisting of rust-free material and wear-resistant material.
5. The gliding edge profile of claim 1 , wherein the second component part is provided as an anchoring profile and is made of steel having good working properties.
6. The gliding edge profile of claim 1 , wherein the component parts are connected to one another by a process selected from the group consisting of laser beam welding, electron-beam welding and plasma jet welding.
7. The gliding edge profile of claim 1 , wherein the component parts are welded to one another by a welding seam of a maximum width of 0.5 mm.
8. The gliding edge profile of claim 1 , wherein the first component part is made of a steel hardened before connection to the second component part.
9. The gliding edge profile of claim 7 , wherein at least an area of the welding seam is tempered.
10. The gliding edge profile of claim 5 , wherein the anchoring profile part has formed therein openings.
11. The gliding edge profile of claim 10 , wherein the anchoring profile has at least one edge formed with borderless openings.
12. The gliding edge profile of claim 1 , wherein the component parts are connected to one another by a welding seam which has gaps.
13. A gliding edge profile, comprising two interconnected component parts, wherein one of the component parts has a gliding edge and is made of a chromium steel having, by weight percent: 0.1 to 1.1% carbon, 4.0 to 18% chromium, 0.1 to 4.0% molybdenum, and/or 0.1 to 2.4% vanadium, and/or up to 3.0% tungsten, up to 2.0% manganese, up to 2.0% silicon, the balance being iron.
14. The gliding edge profile of claim 13 , wherein the tungsten content is at least 0.1%, the manganese content is at least 0.4% and the silicon content is at least 0.4%.
15. The gliding edge profile of claim 13 , wherein the contents of carbon, chromium and molybdenum satisfy the following condition:
(%C)/(%Cr)+(%Mo)=0.02 to 0.07.
16. The gliding edge profile of claim 13 , wherein the contents of molybdenum, vanadium and tungsten satisfy the following condition:
(%C)/(%Cr)+(%Mn)+(%Mo)+(%V)+(%W)=0.65 to 0.98.
17. A gliding edge profile, comprising two interconnected component parts, wherein one of the component parts has a gliding edge and is made of a chromium steel having, by weight percent: 0.3 to 1.0% carbon, 5.0 to 16.5% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, and 0.6 to 1.1% % silicon.
18. The gliding edge profile of claim 17 , wherein the chromium steel contains 1.2 to 2.5% tungsten.
19. A gliding edge profile, comprising two interconnected component parts, wherein one of the component parts has a gliding edge and is made of a chromium steel having, by weight percent: 0.8% or less carbon, 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, and 0.6 to 1.1% % silicon.
20. The gliding edge profile of claim 19 , wherein the chromium steel contains 1.2 to 2.5% tungsten.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123674A DE10123674B4 (en) | 2001-05-16 | 2001-05-16 | Gleitkantenprofil |
DE10123674.3 | 2001-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030006583A1 true US20030006583A1 (en) | 2003-01-09 |
Family
ID=7684904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/147,428 Abandoned US20030006583A1 (en) | 2001-05-16 | 2002-05-16 | Gliding edge profile |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030006583A1 (en) |
AT (1) | AT501171B1 (en) |
DE (2) | DE10123674B4 (en) |
FR (1) | FR2824745B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7004493B2 (en) * | 2001-07-06 | 2006-02-28 | C.D. Walzholz-Brockhaus Gmbh | Ski edge profile |
WO2022109658A1 (en) * | 2020-11-27 | 2022-06-02 | Tang, Yuankui | A new wear resistant steel with high hardness and good toughness which keeps hardened after hard facing and tungsten carbide tile brazing |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004020293B4 (en) * | 2004-04-26 | 2006-02-09 | Danfoss A/S | heat exchangers |
EP2413047B2 (en) † | 2010-07-30 | 2021-11-17 | Grundfos Management A/S | Domestic water heating unit |
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-
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- 2002-05-15 FR FR0205989A patent/FR2824745B1/en not_active Expired - Fee Related
- 2002-05-15 AT AT0074302A patent/AT501171B1/en not_active IP Right Cessation
- 2002-05-16 US US10/147,428 patent/US20030006583A1/en not_active Abandoned
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US2743113A (en) * | 1952-07-11 | 1956-04-24 | Nelson S Griggs | Flexible running edge for ski |
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WO2022109658A1 (en) * | 2020-11-27 | 2022-06-02 | Tang, Yuankui | A new wear resistant steel with high hardness and good toughness which keeps hardened after hard facing and tungsten carbide tile brazing |
Also Published As
Publication number | Publication date |
---|---|
DE10123674A1 (en) | 2002-12-05 |
DE10123674B4 (en) | 2005-11-10 |
AT501171A1 (en) | 2006-07-15 |
FR2824745A1 (en) | 2002-11-22 |
AT501171B1 (en) | 2007-01-15 |
FR2824745B1 (en) | 2004-12-17 |
DE10214735A1 (en) | 2003-12-18 |
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