EP1022374B1 - Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens - Google Patents
Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens Download PDFInfo
- Publication number
- EP1022374B1 EP1022374B1 EP99101175A EP99101175A EP1022374B1 EP 1022374 B1 EP1022374 B1 EP 1022374B1 EP 99101175 A EP99101175 A EP 99101175A EP 99101175 A EP99101175 A EP 99101175A EP 1022374 B1 EP1022374 B1 EP 1022374B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- coating
- soleplate
- nickel
- iron
- 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
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 64
- 239000011248 coating agent Substances 0.000 claims abstract description 57
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 82
- 229910052759 nickel Inorganic materials 0.000 claims description 40
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 238000010409 ironing Methods 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 150000002816 nickel compounds Chemical class 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000004070 electrodeposition Methods 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 12
- 238000005485 electric heating Methods 0.000 claims 2
- 239000003792 electrolyte Substances 0.000 claims 2
- 239000010410 layer Substances 0.000 description 84
- 238000009713 electroplating Methods 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- 238000000151 deposition Methods 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 229910000796 S alloy Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- ILKIXSABKPWMHU-UHFFFAOYSA-N iron;sulfanylidenenickel Chemical compound [Fe].[Ni]=S ILKIXSABKPWMHU-UHFFFAOYSA-N 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 4
- 235000000396 iron Nutrition 0.000 description 3
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum-manganese-magnesium Chemical compound 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 2
- 239000006259 organic additive Substances 0.000 description 2
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RZBAOHIEEDMCNK-UHFFFAOYSA-J S(N)([O-])(=O)=O.[Co+2].[Ni+2].S(N)([O-])(=O)=O.S(N)([O-])(=O)=O.S(N)([O-])(=O)=O Chemical compound S(N)([O-])(=O)=O.[Co+2].[Ni+2].S(N)([O-])(=O)=O.S(N)([O-])(=O)=O.S(N)([O-])(=O)=O RZBAOHIEEDMCNK-UHFFFAOYSA-J 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- DIMZOVQGUDDSHG-UHFFFAOYSA-N ethene;sulfuric acid Chemical class C=C.OS(O)(=O)=O DIMZOVQGUDDSHG-UHFFFAOYSA-N 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 1
- 229940081974 saccharin Drugs 0.000 description 1
- 235000019204 saccharin Nutrition 0.000 description 1
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/38—Sole plates
Definitions
- the invention relates to an electric iron with a silicon-containing cast aluminum manufactured and provided with an electric heater iron block with a plate-shaped soleplate made of low-silicon aluminum attached to the iron block is attached in a heat-conducting manner and a method for producing an electric iron.
- an electric iron which is an aluminum iron block having a heating element cast therein.
- the iron block can be made of aluminum or an aluminum alloy.
- the iron block will anodized and then provided with either a chrome or a nickel-chrome layer.
- the disadvantage of electrolytic electroplating is that which has already been anodized Aluminum surface hardly possible, since the aluminum oxides formed by the anodizing are not electrically conductive, so that the cast body at least on the anodized Side with low efficiency or hardly as an electrode in an electrolytic electroplating bath works.
- galvanic treatment of an aluminum casting block is particularly important then disadvantageous if undercuts are formed through steam outlet openings because there is an unwanted carry-over and Liquid discharge from one electroplating bath liquid into the next electroplating bath liquid, in which the iron block is immersed.
- An electric iron is known from US Pat. No. 2,846,793 which has an aluminum iron block has an iron shoe made of carbon steel attached to it.
- the Iron shoe is provided with a nickel and a chrome layer.
- disadvantageous Nickel-plated and chrome-plated carbon steel satisfies the requirements for corrosion resistance especially in the steam outlet openings of a steam iron Not.
- An iron soleplate made of steel is generally a good option because of its relatively high basic hardness is given and the coefficient of thermal expansion, which is the slope of the soleplate intended for deformation under the influence of iron heat is low. A crack in a coating of the steel sole is therefore less likely.
- an iron with a steel sole has a higher power dissipation, since this is comparatively poorer heat conduction to aluminum.
- the formability and punchability less possible. This disadvantage weighs all the more because the requirements for precise shaped depressions with predetermined radius of curvature and the training increase from openings in the soleplate.
- An electric iron of the type mentioned at the outset is already known from EP 0 754 256 known.
- This iron has an iron block made of silicon-containing cast aluminum with a plate-shaped iron sole made of low-silicon aluminum connected is.
- the soleplate is anodized, creating the surface the soleplate is converted into an aluminum oxide layer.
- this type of surface treatment with regard to the maximum acceptable Expectable scratch resistance and hardness are limited.
- an iron soleplate made of low-silicon aluminum is used. It has been shown that a galvanic electrolytic coating on a low silicon Aluminum with less pretreatment effort is possible, and at the same time a very optimal coating quality is achieved.
- galvanization is carried out with external current (on the electrodes of the electroplating bath) electrolytically, metals or their alloys on the aluminum soleplate deposited.
- external current on the electrodes of the electroplating bath
- metals or their alloys on the aluminum soleplate deposited For example, Nickel and / or chrome allow sufficient Corrosion resistance with high hardness.
- a coating thickness of more than 40 ⁇ m is required to ensure that a coating, which is hard per se, can be impressed on the to prevent relatively soft aluminum.
- the hardness advantageously increases gradually from the aluminum soleplate to the outside of the coating or continuously. Only through this rising towards the outside of the soleplate Hardness gradient is the for the layer above or further out Given sufficient load-bearing capacity or partial surface pressability, so that ultimately excellent hardness and scratch resistance without cracking in the coating possible are.
- the features of claim 2 the coating from a or several individual layers, these being pure nickel and nickel alloys with sulfur, phosphorus, cobalt, iron, sulfur and iron and / or tungsten, and / or Chromium (especially as a final layer). Because of the relatively small economic effort associated with the deposition (with external electricity) of nickel or Alloys, it is advantageous to form a large part of the coating with them.
- the nickel compounds or alloys with sulfur, with phosphorus, with iron, together with iron, with sulfur and iron or with tungsten allow the production of in comparison to pure nickel different hard layers with also varying corrosion resistance, so that on the basis of a nickel compound one in Hardness increasing coating structure is economically producible.
- the nickel compounds or nickel alloys specified here only with regard to their Main components and not with regard to their chemical connection. So is z. B. the nickel-sulfur alloy used here is a nickel alloy with nickel sulfide.
- a first layer of pure nickel and a second layer of a nickel alloy is provided.
- Pure nickel i.e. nickel without any Admixtures of e.g. As sulfur or phosphorus
- has a high ductility at the same time has a slightly increasing hardness compared to an aluminum surface, so that the Tendency to crack formation under load is prevented.
- the difference in hardness between the two layers is ⁇ or in the range of 200 HV, see above that the pure nickel layer forms the first stable layer.
- the second layer it is preferred a nickel / sulfur alloy selected, due to this in the corrosion potential less noble metal compared to pure nickel a higher corrosion resistance is achieved through potential formation.
- the chrome layer is the outermost Layer also advantageous in so far as under the influence of heat on irons up to 300 Degrees Celsius no discoloration or tarnishing happen.
- the Chrome layer also protects against corrosion.
- This increasing hardness in the coating structure is necessary because low-hardness aluminum is electroplated and thus an overall load-bearing layer structure is given. It has been shown that to achieve excellent scratch resistance the differences in hardness between each other adjacent layers must not exceed certain limits, so that cracking is avoided under heat load.
- the difference in hardness between the aluminum base material of the iron soleplate and the first layer no larger than 250 HV
- the difference in hardness between the first and second sub-layer is not greater than 350 HV
- the difference in hardness between the second and third layers is not be greater than 500 HV, so that a stable structure that does not tend to crack is given is.
- the first layer is only moderately hard and increases mainly optimizes the ductility so that the cracks that arise do not come down to the Pull aluminum through and can lead to corrosion.
- the second layer has one Corrosion protection and leveling importance. A mechanical pre and post treatment, as is necessary with plasma spraying or anodizing.
- the outermost the layer must remain optically high-quality and be as hard as possible. Therefore explained the first layer is still not very hard, but the outermost layer is very hard.
- the outermost or third layer of the coating is advantageously a chrome layer, which has a hardness of between 700 HV and 1100 HV (# Claim 5). So the soleplate is enough the greatest scratching stresses when ironing even under the influence of heat.
- the coating advantageously has a first layer with a thickness of 10 to 70 ⁇ m, in particular 50 ⁇ m, a second layer also with a thickness of 10 to 70 ⁇ m, in particular 50 ⁇ m (# 6) and a third layer with a thickness of 10 up to 50 ⁇ m (# Claim 7).
- the first layer and the second layer are ideally 50 ⁇ m thick and the third layer 20 ⁇ m thick. Since aluminum has a coefficient of thermal expansion of approximately 24 x 10 -6 / K, nickel has a coefficient of thermal expansion of approximately 13 x 10 -6 / K and chrome has a coefficient of thermal expansion of approximately 7 x 10 -6 / K, the layer structure of the coating is one to the outside falling thermal expansion coefficient designed.
- the elongation at break values of the coating metals increase in the direction of the base material (aluminum), so that thermal stresses due to a bimetal effect do not lead to cracks, particularly in the first nickel layer. Accordingly, the layer thicknesses are optimized so that the galvanic coating has a maximum durability.
- the information on the layer thicknesses relate to a central flat section of the soleplate, which is not directly at openings , Edges and possibly depressions.
- the coating has a total thickness of> 60 ⁇ m on (# claim 8).
- a coating thickness of less than 40 ⁇ m at least ensures one 40 ⁇ m or better at least 60 or 80 ⁇ m thick coating of the soleplate the high demands placed on a galvanic-electrolytically generated Aluminum layer.
- the soleplate is for nickel plating by means of electrodeposition in an electrolysis bath immersed with external current to be applied to the electrodes, one of which is off non-conductive material, e.g. B. plastic, existing aperture is arranged such that the deposited layer in its thickness evenly distributed over the surface of the soleplate is.
- a chrome layer is used for the electrodeposition the soleplate of the iron is immersed in an electrolysis bath in such a way that a shaped anode (ie adapted to the shape of the soleplate) is arranged in front of the soleplate and thus an essentially homogeneous layer thickness is deposited (# Claim 11).
- FIG. 1 shows a section of a sectional view through the lower region of a Steam iron, i.e. the area of the steam iron that the ironing material is in use is next.
- An iron block 1 is provided, which for better casting or. Demoldability is made of silicon-containing cast aluminum.
- an electrical resistance heater 2 is cast in.
- In the iron block are also depressions and channels for the steam chamber and steam transmission formed (not shown in Fig. 1).
- the iron block is in good thermal conductivity Connection attached to the soleplate 3.
- the good heat-conducting connection is preferred made by a silicone adhesive 4.
- the soleplate 3 consists of low-silicon Aluminum, which is not only advantageous in terms of light weight, good Punchability and formability and good thermal conductivity is, but also by low silicon content for a galvanic-electrolytic coating with external current is deposited, forms a good basis.
- the coating 5 the soleplate is coated on both sides, with on the outside the soleplate, i.e. the side facing the ironing during use, due to the arrangement on the electroplating frames in the electrolysis bath, a higher deposition done as on the back side.
- this is galvanic-electrolytic Coating 5 also protects the inside of the soleplate from corrosion. This is particularly important because between the iron block and iron sole cavities are provided for steam distribution, whereby the iron sole inside is directly exposed to steam.
- the section of the cross-sectional view shown in FIG. 1 shows the soleplate 3 and the iron block 1 in the area of a steam outlet opening 6, which in the aluminum soleplate 3 embossed radii in the area of the steam outlet opening are designed so that there is good sliding behavior of the iron sole via buttons and zippers and other places of the ironing material.
- Fig. 2 shows a preferred embodiment of the electric iron. It is both with regard to the lateral as well as the downward extension to the iron block 1 a section of the soleplate 3 is shown, on which a galvanic-electrolytically deposited Coating 7 is applied.
- the coating 7 consists of a first layer 8 pure nickel, which has a high ductility, so that cracking is prevented. Ideally, 40 to 60 ⁇ m are deposited from this first layer.
- the first Layer increases the hardness of the soleplate surface to about 150 to 200 HV.
- a so-called gloss or semi-gloss nickel layer is applied to the pure nickel layer electroplated with external current.
- the shiny nickel shows in addition to the nickel an admixture of 0.05% sulfur, so that compared to the first layer results in an increased potential difference with the less noble bright nickel and as a result, the corrosion protection is improved.
- the shiny nickel are also deposited about 40 - 60 microns, so that the surface hardness of the soleplate to is increased to about 350 to 500 HV a second time. To achieve the required semi-gloss effect achieve certain organic additives are mixed.
- the third and preferably outermost layer 10 is a hard chrome layer by means of electroplating applied external current deposited on the second layer 9.
- the third and preferably outermost layer 10 is a hard chrome layer by means of electroplating applied external current deposited on the second layer 9.
- chrome does not assign that to irons note property that a strong yellow discoloration occurs when heated.
- the Chrome does not tarnish up to the maximum ironing temperature of 300 degrees. Because of the previous one Layer structure of the coating 7 has been shown to be comparatively different from that a hard chrome plating associated with nickel economically greater effort from 10 to 30 ⁇ m is sufficient.
- the coating according to this embodiment according to FIG. 2 has a medium overall Thickness of about 120 microns, with 40 or better 60 microns as the critical lower limit Coating 7 can be viewed.
- the thickness of the coating or the individual layers arises not only from the starting material to be electroplated, namely Aluminum, but also because of the type of process, namely the galvanic-electrolytic with applied external current in the electroplating bath.
- the metal coating of the second layer a Nikkel sulfur alloy replaced by a nickel-iron or nickel-iron sulfur alloy.
- the addition of iron leads in particular to a subsequent post-annealing process or temperature stress, such as that caused by normal iron use can take place to a tendency increasing strength, so that a higher Ultimate hardness is achieved than is the case with certain nickel alloys, their hardness their initial hardness tends to drop slightly when exposed to temperature.
- the specified here Hardness values therefore refer at least to the new condition of the iron. This fact also underlines the importance of achieving a high final hardness, the then still excellent scratch and abrasion properties under heat having.
- the way of increasing the final hardness of a galvanic-electrolytic coated soleplate by a nickel-iron-sulfur compound / alloy can in particular be the subject of your own registration.
- the nickel iron (sulfur) -Deposition as a single coating or in combination with others Layers as suggested above are possible.
- an initial hardness of 500 HV was achieved using a Nikkel iron alloy achieved, the final hardness increases due to a subsequent heat load from about 250 ° C to about 650 HV. This effect is especially for use with irons particularly advantageous.
- a coating with layers is built up, which has one or more of the following metal coatings.
- the coating shows as first functional layer has a pure nickel layer for the reasons already mentioned above.
- a nickel-cobalt or nickel-cobalt-sulfamate layer is deposited thereon.
- the Cobalt leads to an increase in the hardness of the nickel deposit, whereby the installation rate of the Cobalt and the resulting increase in hardness via the current density in the electroplating bath have continuously increased.
- the ductility is not affected.
- Thereon becomes a further sulfur-nickel layer and / or a nickel-iron or nickel-iron-sulfur layer galvanically electrolytically deposited on the soleplate 3.
- a nickel-phosphor and / or a nickel-tungsten layer is used as a further or alternative layer deposited on the soleplate.
- These nickel additives are both thermostable as well as increasing hardness, so that the desired properties on the soleplate continue to be improved.
- Thermal stress tends to increase the hardness of the alloy. So one can use phosphor-nickel or tungsten-nickel coated iron soleplate through a 12-hour tempering process Increase from 250 HV to 900 HV at 250 ° C. This annealing can be omitted as an alternative and can be done through normal iron use.
- the coating accordingly contains a layer based a nickel alloy that hardens under the influence of heat.
- the coating has one or more layers, the hardness of which is continuous towards the outside (e.g. within a layer) and / or gradually increasing, the first coating on which aluminum has a high ductility and a high elongation at break, so that cracking of the subsequently applied harder and more brittle Layers never extend down to the aluminum and are therefore corrosive could work.
- These requirements are met by pure nickel without sulfur and phosphor alloy components Fulfills.
- the function of the second or middle class (es) lies in one further, preferably heat-resistant, hardness increase, as well as a high leveling and Shine formation to the desired level, which is a mechanical pre and post treatment superfluous and thus contributes to an economic procedure.
- the function of the final layer or outermost layer or third layer consists primarily of another To achieve an increase in hardness with permanent, high optical quality. All or most of them Layer components also have a corrosion-reducing effect.
- the coating only consists of a layer, preferably a nickel alloy.
- a coating is formed that has at least one or more of the alloys or metal coatings mentioned above.
- the soleplate consists of a wrought aluminum alloy, a rolled sheet, in particular of the types aluminum-manganese-magnesium (AlMg4.5Mn), aluminum-magnesium (AlMg3), aluminum-copper-magnesium (AlCuMg1) etc. It has been shown that for galvanic-electrolytic External current deposition of coating metals the deposits done with higher quality if the aluminum sheet is practical as in these cases is silicon-free or low in silicon.
- the soleplate has steam vents that are provided in recesses with certain predetermined radii. Furthermore, in the Iron soleplate Steam channels with certain radii to the otherwise flat surface the aluminum soleplate.
- the outer edge of the soleplate is optional at a certain angle, e.g. B. 35 ° upwards, i.e. facing away from the iron surface Bent over.
- the zincate pickle has other metals such as. B. Nikkel, Copper, iron and a. and hydroxides and cyanides. It causes slight aluminum erosion and on the other hand the formation of an adhesive layer with the alloy metals this solution as a result of charge exchange.
- This zincate stain ultimately has a thickness of ⁇ 0.5 ⁇ m and is marked with the number 11 in FIG. 2. The zincate stain increases the adhesion of all subsequently applied metal layers 8, 9, 10 of the coating 7.
- the next essential step in the process is to iron the soleplate pretreated in this way
- Bright nickel bath preferably immersed in a sulfur-containing nickel alloy, the procedure approximately similar to the previous one also with a Aperture happens.
- the current densities are set so that about 50 microns of the two nickel layers be deposited in each case.
- Organic additives become shiny nickel attached, such as B. saccharin or chlorinated ethylene sulfuric acids (aliphatic or aromatic), so that a predetermined semi-gloss effect is created.
- the soleplate coated in this way is immersed in a hard chrome electrolysis bath, in which an external current for metal deposition is also present at the electrodes.
- the time and the current at the electrodes are set so that about 20 microns of hard chrome be deposited.
- anodes are used, i.e. anodes that match the shape of the soleplate of the iron are adjusted.
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59900161T DE59900161D1 (de) | 1999-01-22 | 1999-01-22 | Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens |
EP99101175A EP1022374B1 (de) | 1999-01-22 | 1999-01-22 | Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens |
AT99101175T ATE203288T1 (de) | 1999-01-22 | 1999-01-22 | Elektrisches bügeleisen und verfahren zur herstellung eines elektrischen bügeleisens |
ES99101175T ES2161559T3 (es) | 1999-01-22 | 1999-01-22 | Plancha electrica y metodo para la fabricacion de una plancha electrica. |
US09/489,054 US6360461B1 (en) | 1999-01-22 | 2000-01-21 | Electric pressing iron and method of manufacturing an electric pressing iron |
PL337986A PL191847B1 (pl) | 1999-01-22 | 2000-01-24 | Żelazko elektryczne i sposób wytwarzania żelazka elektrycznego |
HK01100574A HK1031135A1 (en) | 1999-01-22 | 2001-01-23 | Iron and method of producing an iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99101175A EP1022374B1 (de) | 1999-01-22 | 1999-01-22 | Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1022374A1 EP1022374A1 (de) | 2000-07-26 |
EP1022374B1 true EP1022374B1 (de) | 2001-07-18 |
Family
ID=8237389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99101175A Expired - Lifetime EP1022374B1 (de) | 1999-01-22 | 1999-01-22 | Elektrisches Bügeleisen und Verfahren zur Herstellung eines elektrischen Bügeleisens |
Country Status (7)
Country | Link |
---|---|
US (1) | US6360461B1 (pl) |
EP (1) | EP1022374B1 (pl) |
AT (1) | ATE203288T1 (pl) |
DE (1) | DE59900161D1 (pl) |
ES (1) | ES2161559T3 (pl) |
HK (1) | HK1031135A1 (pl) |
PL (1) | PL191847B1 (pl) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2119822A1 (en) * | 2008-05-16 | 2009-11-18 | Koninklijke Philips Electronics N.V. | Device comprising a coated metal plate and method for manufacturing such device |
ES2538681T3 (es) * | 2009-01-30 | 2015-06-23 | Polne, S.L. | Suela y plancha que comprende tal suela |
US20220186394A1 (en) * | 2020-12-11 | 2022-06-16 | Honeywell International Inc. | Electroplate laminated structure and methods of fabricating the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2298113A (en) * | 1940-12-07 | 1942-10-06 | Westinghouse Electric & Mfg Co | Lightweight electric iron |
DE3644211A1 (de) * | 1985-12-24 | 1987-08-27 | Braun Ag | Buegeleisensohle |
DE3918824A1 (de) * | 1988-08-25 | 1990-03-08 | Braun Ag | Buegeleisensohle |
US5105525A (en) * | 1988-08-25 | 1992-04-21 | Braun Aktiengesellschaft | Process for making a smoothing iron soleplate |
FR2700784B1 (fr) * | 1993-01-25 | 1995-03-17 | Seb Sa | Semelle de fer à repasser multicouches en matériaux colaminés. |
DE4411790A1 (de) * | 1994-04-06 | 1995-10-12 | Braun Ag | Elektrisches Bügeleisen |
BE1008961A3 (nl) * | 1994-11-14 | 1996-10-01 | Philips Electronics Nv | Strijkijzer met glijlaag. |
-
1999
- 1999-01-22 DE DE59900161T patent/DE59900161D1/de not_active Expired - Lifetime
- 1999-01-22 ES ES99101175T patent/ES2161559T3/es not_active Expired - Lifetime
- 1999-01-22 AT AT99101175T patent/ATE203288T1/de active
- 1999-01-22 EP EP99101175A patent/EP1022374B1/de not_active Expired - Lifetime
-
2000
- 2000-01-21 US US09/489,054 patent/US6360461B1/en not_active Expired - Fee Related
- 2000-01-24 PL PL337986A patent/PL191847B1/pl unknown
-
2001
- 2001-01-23 HK HK01100574A patent/HK1031135A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ES2161559T3 (es) | 2001-12-01 |
PL337986A1 (en) | 2000-07-31 |
PL191847B1 (pl) | 2006-07-31 |
US6360461B1 (en) | 2002-03-26 |
HK1031135A1 (en) | 2001-06-01 |
DE59900161D1 (de) | 2001-08-23 |
EP1022374A1 (de) | 2000-07-26 |
ATE203288T1 (de) | 2001-08-15 |
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