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WO2011151286A2 - Procédé d'application d'une couche d'argent sur une surface d'un substrat en acier et réacteur en acier pourvu d'une couche d'argent selon le procédé d'application - Google Patents

Procédé d'application d'une couche d'argent sur une surface d'un substrat en acier et réacteur en acier pourvu d'une couche d'argent selon le procédé d'application Download PDF

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Publication number
WO2011151286A2
WO2011151286A2 PCT/EP2011/058832 EP2011058832W WO2011151286A2 WO 2011151286 A2 WO2011151286 A2 WO 2011151286A2 EP 2011058832 W EP2011058832 W EP 2011058832W WO 2011151286 A2 WO2011151286 A2 WO 2011151286A2
Authority
WO
WIPO (PCT)
Prior art keywords
silver layer
substrate
reactor
steel
wall
Prior art date
Application number
PCT/EP2011/058832
Other languages
German (de)
English (en)
Other versions
WO2011151286A3 (fr
Inventor
Robert Stöcklinger
Original Assignee
G+R Technology Group Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G+R Technology Group Ag filed Critical G+R Technology Group Ag
Publication of WO2011151286A2 publication Critical patent/WO2011151286A2/fr
Publication of WO2011151286A3 publication Critical patent/WO2011151286A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B23K9/042—Built-up welding on planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0086—Welding welding for purposes other than joining, e.g. built-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0093—Welding characterised by the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
    • B23K20/08—Explosive welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/004—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a metal of the iron group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
    • B23K9/232—Arc welding or cutting taking account of the properties of the materials to be welded of different metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/12—Vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials

Definitions

  • the present invention relates to a coating method for a silver layer on a steel substrate.
  • the silver layer is applied to the surface of a steel substrate.
  • the invention relates to a reactor made of steel, which is provided with a silver layer according to an application method according to the invention.
  • the application method is a thermal deposition process for applying silver or the silver layer to a reactor inner wall in which the thermal application process of the silver layer was carried out.
  • Reactors and in particular reactors for the production of mono- or polycrystalline silicon, usually have a double wall, which consists of an outer and inner wall.
  • the inner wall is formed for example of steel or at least on its side facing the interior of the reactor, its inner side or inner surface, made of steel.
  • the surface of the inner wall is often coated with a silver layer.
  • DE 10 2009 003 368 B3 describes a reactor for the production of polycrystalline silicon according to the monosilane process.
  • the reactor has a wall which is closed by a bottom of the reactor and a dome-shaped roof upwards.
  • the wall of the reactor consists of an outer wall and an inner wall.
  • the roof also has an outer wall and an inner wall.
  • the inner wall of the wall and / or the inner wall of the roof are provided on their respective inner sides with a silver layer.
  • a silver layer is applied by means of explosive plating.
  • Explosive plating is a physical application method in which two different types of metals are connected to one another or interlocked with one another.
  • another metal namely silver
  • DE 32 38 776 C2 describes a method for lining or changing and interconnecting preformed workpieces, which can be used here.
  • a coating method for applying a silver layer on a surface of a steel substrate and comprises the steps of: applying a silver layer on at least a portion of the surface of the steel substrate, and thermally bonding the Silver layer and the surface of the substrate made of steel.
  • Another object of the invention is to provide a reactor for the production of polycrystalline or monocrystalline silicon which has an increased efficiency in which contamination of the reaction products is avoided and which is inexpensive to produce or repair.
  • the reactor according to the invention consists essentially of steel and serves for the production of monocrystalline or polycrystalline silicon.
  • the reactor is equipped with a Silver layer provided, which is directed towards the reactor interior.
  • the silver layer reflects the electromagnetic radiation generated by the reaction in the reactor for the most part back into the interior of the reactor.
  • the reactor is constructed of a reactor bottom, a cylindrical wall and a dome-shaped roof.
  • the cylindrical wall (hollow cylinder) and the dome-shaped roof are connected to each other via a weld.
  • the wall and the roof of the reactor each consist of at least one molding.
  • the molding carries in adjacent marginal areas to sprinkling moldings no silver layer.
  • At least one further silver layer which covers the weld seam and the edge region is applied in the edge region on at least part of a surface of a substrate of the adjoining steel moldings.
  • the further silver layer is attached to the substrate by means of a thermal connection.
  • the silver layer adheres to the steel substrate by means of a physical connection made by explosive plating. Explosive plating is used on flat and flat substrates and, prior to molding, for the moldings from the substrate.
  • the silver layer on the substrate of steel adheres by means of a thermal bond, which is produced by a welding process.
  • the welding process is used for flat and flat substrates or substrates that have already been converted into molded parts (3-dimensional).
  • the thermal bonding is a welding process that connects the silver layer and the surface of the steel substrate.
  • the application method may additionally comprise, after the thermal bonding, the steps of rolling, grinding and polishing a surface of the silver layer processed by the thermal bonding.
  • the surface of the steel substrate is an inner wall of a reactor.
  • the reactor may be a reactor for producing mono- or polycrystalline silicon.
  • the inner wall of the reactor may have a first inner wall which is the inner wall of a hollow cylinder and a second inner wall which is a roof of the hollow cylinder, the silver layer being applied only to the inner wall of the hollow cylinder and not to the inner wall of the roof ,
  • the following steps are carried out prior to carrying out the application method: physically bonding a silver layer to the surface of the steel substrate by explosive plating, forming the steel substrate connected to the silver layer into an inner wall of a cylindrical reactor, in particular with a roof
  • the edges of the steel substrate are thermally bonded to one another, the application method comprising the following modified steps: applying a further layer of silver over the edges of the strip joined together in the preceding step Steel substrate, and thermally bonding the silver layer and the steel substrate in the region of the edges.
  • the reactor is preferably a reactor for producing mono- or polycrystalline silicon.
  • the reactor interior comprises an inner wall having a first inner wall, which is the inner wall of a hollow cylinder, and a second inner wall, which is a roof of the hollow cylinder, wherein the silver layer at least on portions of the inner wall of the hollow cylinder and / or on portions the inner wall of the roof is applied.
  • the application method described above is a thermal application process.
  • the application of a silver layer to the surface of a substrate made of steel or from silver to steel can be carried out without limiting the basic shape and the surface topology of steel.
  • the application method according to the invention can also be used with curved surfaces. This offers a considerable advantage over explosive plating, since the method can also be used with already existing reactors. This makes it possible that repair work of the surface of the inside of the reactor can be carried out with the method according to the invention.
  • the cost of applying a silver layer to a steel layer is less than the cost of explosive plating.
  • Fig. 1 is a schematic sectional view of the substrate made of steel and the
  • Silver layer associated with the coating method of the invention a schematic sectional view in which the substrate made of steel and the silver layer are connected to the application method according to the invention; a schematic plan view of a treated with the inventive application method surface; a sectional view of a reactor for the production of monocrystalline or polycrystalline silicon, in the reactor interior of the application method according to the present invention has been applied; a schematic plan view of a provided with a silver layer, flat and planar substrate; a partial view of a connected in the edge region with a weld molding; and a partial view of the joined molding of Figure 6, wherein the weld and the edge region is covered around the weld with at least one further silver layer.
  • a substrate 10 steel is shown with an edge 1 1, on the surface 10a of a silver layer 20 is placed.
  • the substrate 10 made of steel for example, be an arbitrarily shaped component, even if it is generally shown in Fig. 1 as a flat surface.
  • the silver layer 20 is generally much thinner than the substrate 10 made of steel, as shown schematically in Fig. 1.
  • the silver layer 20 is a film or a thin film whose thickness is in the order of mm to ⁇ . That is, the steel substrate 10 has a supporting function while the silver layer 20 serves as a coating of the surface 10a of the supporting substrate 10 made of steel.
  • the substrate 10 made of steel and the silver layer 20 are not yet thermally connected, but are only loosely on each other.
  • Fig. 2 shows the state when surface 10 a of the substrate 10 made of steel and the silver layer 20 are already thermally connected and thus the silver layer 20 is applied to the surface 10 a of the substrate 10 made of steel 10 and the surface 10 a of the steel with the Silver layer 20 is coated.
  • silver layer 20 and the substrate 10 made of steel are attached to each other and bonded to each other.
  • the silver layer 20 is thermally bonded to the surface 10a of the substrate 10 by a plurality of thermal bonds 30 for attachment to the surface 10a of the substrate 10 made of steel.
  • a thermal connection 30 may be sufficient for fastening the two materials to each other.
  • the thermal connection 30 can be produced, for example, by means of a welding process in which the surface 10a of the substrate 10 made of steel and the silver layer 10 are joined together in a flat manner by means of a continuous welding seam.
  • FIG. 3 shows a plan view of the silver layer 20, which is connected to the thermal connections 30 in a lattice-like manner with the surface 10a of the steel substrate.
  • the silver layer 20 is composed of a plurality of surface portions 20a individually bonded to the surface 10a of the substrate 10 made of steel by the thermal process.
  • the steel substrate 10 is shown in FIG.
  • thermal connections 30 in FIG. 3 are continuous thermal connections and, for example, in each case continuous and flat weld seams which can be produced by means of the welding process.
  • the substrate 10 made of steel, for example, an inner wall 41 b of a in Fig.
  • the reactor 40 is suitable for example for the production of monocrystalline or polycrystalline silicon and has a wall 41, which is closed by a reactor bottom 42 down and a dome-shaped roof 43 upwards.
  • the wall 41, the reactor bottom 42, the roof 43 and the inner tube 44 form a reactor interior 45.
  • the wall 41 of the reactor 40 consists of an outer wall 41 a and an inner wall 41 b.
  • the outer wall 41 a and the inner wall 41 b are spaced apart, so that thereby a gap Z is formed. In this intermediate space Z, cooling water is passed in order to obtain a defined process temperature in the interior of the reactor 40.
  • the roof 43 also has an outer wall 43a and an inner wall 43b.
  • the outer wall 43 a and the inner wall 43 b of the roof 43 are like the outer wall 41 a and the inner wall 41 b of the wall 41 spaced from each other.
  • the inner wall 41b of the wall 41 which is also referred to as the first inner wall
  • the inner wall 43b of the roof 43 which also form the inner wall 41b, 43b of the reactor 40 as the second inner wall.
  • the outer wall 41 a and the inner wall 41 b of the reactor are made of steel.
  • steel As a kind of steel one can imagine different kinds of stainless steel.
  • the use of stainless steels for at least the inner wall 41b of the wall 41 of the reactor 40 has the advantage that the reaction products (monocrystalline or polycrystalline silicon) are not contaminated by alloying constituents of the steel when the steel surface covering the surface of the substrate 10 Silver layer 20 has damage.
  • the reactor 40 preferably at least a portion or even the entire inner wall 41 b of the wall 41 are provided with a silver layer 20 using the application method described above with reference to FIGS. 1 to 3.
  • the silver layer 20 ensures energy-efficient performance of the process taking place in the reactor 40.
  • the first inner wall, the inner wall 43b of the roof 43, the second inner wall may also be formed on their respective inner surfaces using the silver layer coating method previously described with reference to FIGS. 1 to 3 20 provided be.
  • a coating of the inner wall 43b of the roof 43 with a silver layer 20 is not necessarily required for an energy-efficient implementation of the process taking place in the reactor 40.
  • only the coating of the inner wall 41 b of the wall 41 is sufficient.
  • the inner wall 41b of the wall 41 When only a part of the inner wall 41b of the wall 41 is provided with a silver layer 20 by the above-described coating method, another part of the inner wall 41b may be coated by physically bonding a silver layer 20 to the surface 10a of the substrate 10 made of steel by explosive plating.
  • the explosive plating is to be performed prior to forming the inner wall 41b and, as a rule, prior to its installation in the reactor 40, as previously described in connection with the prior art.
  • care When forming the substrate 10 associated with the silver layer 20 into a cylindrical reactor 40, care must be taken that at the junction of edges of the substrate 10 there is no silver layer 20 or no silver. Only in this way can the edges of the substrate 10 made of steel of the inner wall 41b, 43b be connected to one another thermally (welding process).
  • a further silver layer 21 over the interconnected in the preceding step edges 1 1 of the substrate 10 are placed.
  • the further silver layer 20 should have such a large area as the area at the joint of edges 11 of the substrate 10 of the inner wall 41b, 43b is large.
  • the further silver layer 21 can be thermally bonded to the substrate 10 made of steel.
  • the entire inner wall 41 b, 43 b is provided with a continuous silver layer 20.
  • the surface or the silver layer 20 can be configured as a flat surface without protrusions.
  • the substrate 10 made of steel is an inner wall 41 b of the reactor 40.
  • the mechanical treatment results in a smooth and reflecting surface, so that, for example, no deposits on the silver layer 20 can form in the reactor 40 when a process has run off, and the radiation in the reactor 40 is reflected back into the interior 45 of the reactor 40.
  • FIG. 5 shows a schematic plan view of a planar and planar substrate 10 provided with a silver layer 20.
  • the silver layer 20 is applied to the substrate 10 in such a way that an edge region 12 is not provided with the silver layer 20. It is likewise conceivable for the silver layer 20 to be removed from the edge region 12 after it has been applied to the substrate 10.
  • FIG. 6 shows a partial view of a molded part 16 connected to a weld seam 14 in the edge region 12.
  • the weld seam 14 is guided in the substrate 10, which is made of steel, and thus connects the edge region 12 of the molded article 16 or the Moldings 16. Only when the edge region of the molding 16 is released from the silver layer 20, the welding ßrind can be performed high quality.
  • the weld seam 14 and the edge region 12 of the molding 16 are covered with a further silver layer 21.
  • a plurality of further silver layers 21 are provided in order to achieve complete coverage of the weld 14 and the edge region 12 of the molded part 16.
  • the further silver layer 21 for its attachment to the surface 10a of the substrate 10 made of steel, is thermally bonded by means of a plurality of thermal bonds 30 to the surface 10a of the substrate 10 made of steel.
  • the silver layer 20 and the further silver view 21 can still be subjected to a mechanical treatment process in order to obtain a smooth surface inside the reactor or on the surface of the substrate 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

L'invention concerne un procédé d'application d'une couche d'argent (20) sur une surface (10a) d'un substrat (10) en acier et concerne également un réacteur (40). Le procédé d'application comprend les étapes: poser une couche d'argent (20) sur un substrat (10) et lier thermiquement la couche d'argent (20) et le substrat (10). Le réacteur (40) sert à mettre en œuvre un processus défini et présente une chambre intérieure (45) dans laquelle une couche d'argent (20) est fixée au moyen d'une liaison thermique (30) sur au moins une partie de la surface (10a) du substrat (10).
PCT/EP2011/058832 2010-06-04 2011-05-30 Procédé d'application d'une couche d'argent sur une surface d'un substrat en acier et réacteur en acier pourvu d'une couche d'argent selon le procédé d'application WO2011151286A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010017238.3 2010-06-04
DE102010017238A DE102010017238A1 (de) 2010-06-04 2010-06-04 Auftragsverfahren zum Auftragen einer Silberschicht auf eine Oberfläche eines Substrats aus Stahl und Reaktor

Publications (2)

Publication Number Publication Date
WO2011151286A2 true WO2011151286A2 (fr) 2011-12-08
WO2011151286A3 WO2011151286A3 (fr) 2012-03-08

Family

ID=44484965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/058832 WO2011151286A2 (fr) 2010-06-04 2011-05-30 Procédé d'application d'une couche d'argent sur une surface d'un substrat en acier et réacteur en acier pourvu d'une couche d'argent selon le procédé d'application

Country Status (2)

Country Link
DE (1) DE102010017238A1 (fr)
WO (1) WO2011151286A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015200070A1 (de) 2015-01-07 2016-07-07 Wacker Chemie Ag Reaktor zur Abscheidung von polykristallinem Silicium
CN105643127B (zh) * 2016-02-29 2017-12-22 西安天力金属复合材料有限公司 一种多晶硅提炼设备用大幅面银/钢复合板的制备方法
CN109454322B (zh) * 2018-12-06 2021-02-09 南昌大学 模块化爆炸焊接炸药装药单元及其模块化装药拼铺方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238776C2 (de) 1982-10-20 1986-05-07 Heraeus Elektroden GmbH, 6450 Hanau Verfahren zum Aus- oder Umkleiden und untereinander Verbinden von vorgeformten Werkstücken
DE102009003368B3 (de) 2009-01-22 2010-03-25 G+R Polysilicon Gmbh Reaktor zur Herstellung von polykristallinem Silizium nach dem Monosilan-Prozess

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US2392917A (en) * 1944-01-26 1946-01-15 Wilson H A Co Silver cladding
DE956369C (de) * 1952-11-30 1957-01-17 Degussa Verfahren zur Herstellung von silberplattierten Formstuecken aus Stahl
DE1135733B (de) * 1953-07-04 1962-08-30 Basf Ag Verfahren zum Herstellen einer festhaftenden und dichten Plattierung von Silber auf Stahl
DE1033378B (de) * 1953-11-17 1958-07-03 Fr Kammerer Ag Verfahren zur Herstellung von silberplattierten Formstuecken aus Stahl
DE1002186B (de) * 1953-11-17 1957-02-07 Degussa Verfahren zum Herstellen von mit Silber oder hochsilberhaltigen Legierungen plattierten Formstuecken aus Stahl und seine Anwendung
US4179530A (en) * 1977-05-20 1979-12-18 Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoffe Mbh Process for the deposition of pure semiconductor material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238776C2 (de) 1982-10-20 1986-05-07 Heraeus Elektroden GmbH, 6450 Hanau Verfahren zum Aus- oder Umkleiden und untereinander Verbinden von vorgeformten Werkstücken
DE102009003368B3 (de) 2009-01-22 2010-03-25 G+R Polysilicon Gmbh Reaktor zur Herstellung von polykristallinem Silizium nach dem Monosilan-Prozess

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WO2011151286A3 (fr) 2012-03-08
DE102010017238A1 (de) 2011-12-08

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