Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D1/00—Electroforming
  • C25D1/02—Tubes; Rings; Hollow bodies
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D3/00—Electroplating: Baths therefor
  • C25D3/02—Electroplating: Baths therefor from solutions
  • C25D3/48—Electroplating: Baths therefor from solutions of gold

Definitions

• the invention relates to a garnish, in particular to a garnish having a gold surface.
• Gold is a precious metal with high value-keeping and high ornamental properties, and therefore gold-colored articles such as furnishings and other decorative objects are widely welcomed. Due to the high price of gold, many gold-made objects have only the outermost layer of gold and the inner core is an empty core or a non-gold metal filler to achieve the maximum surface area using the minimum amount of gold. Gold products are the most valuable in terms of gold products, so many gold products have the outer layer of gold.
• the outer layer of the gold product can have various extraordinar and beautiful surface textures, for example, suede, sand surface, and velvet sand surface (ie, suede and sand) Combination of faces) or other surface textures.
• suede, sand surface, and velvet sand surface ie, suede and sand
• the gold with suede, sand surface, or velvet sand surface is usually formed by electroforming.
• the gold content is 99. 9 with a gold content higher than or equal to 100 parts.
• the common gold has a low hardness and strength (its Vickers hardness is about 20-40Hv) and is easily deformed. This physical property limits the plasticity, shape, configuration, and volume of the gold products, especially the hollow full-length gold products, to a certain extent, so that the design of the existing gold products is somewhat simple or monotonous. At the same time, this property also limits the minimum thickness of the gold surface to a certain extent. Furthermore, the low hardness and poor strength of the velvet sand gold also affect the processing efficiency of the post-process in the electroforming process, directly resulting in a low yield.
• the use of non-full-gold metal fillers to support the outer layer of the gold to reduce the thickness of the gold surface and/or increase the volume may also cause oxidation due to the leakage of the non-full-gold metal filler.
• One aspect of the present invention provides a full-featured gold fitting having the characteristics of a conventional gold-gold delicate and aesthetic surface and having a high hardness and rigidity characteristic of non-foot gold.
• the present invention provides the support required for a soft full-featured gold outer skin by a full-foot gold hard shell created by an electroforming process.
• the soft gold surface layer has a hardness of less than 60 Hv, may be lower than 50 Hv, or may be lower than 40 Hv.
• the hardness of the hard gold shell may be higher or lower than the hardness of the soft gold surface layer, for example, or may be 60Hv or higher.
• the hardness and strength of the ornaments with the hard gold inner shell supporting the velvet sand gold outer shell are high, and the ornaments can be modified by traditional jewelry techniques such as car flower and sand.
• the rigid housing can be hollow as a support housing.
• the hollow hard shell saves the amount of gold in the same volume of the object.
• the hollow hard shell greatly enhances the plasticity of the shape of the object.
• the hard gold shell typically has a thickness of more than 60 microns, may be more than 80 microns, or may be more than 100 microns.
• the hard gold shell typically has a thickness of less than 350 microns, may be less than 300 microns, or may be less than 200 microns.
• the soft gold layer has a thickness of less than 80 microns to reduce the amount of gold used.
• the soft gold layer may have a thickness of less than 20 microns. Due to the high hardness and rigidity of the full-foot gold hard shell, it provides all the support needed for a soft full-featured gold outer skin. The full-featured gold fitting having the above characteristics is not easily deformed even without the support of the filler.
• the gold fittings (also called the ornaments) of the embodiment of the invention have the advantages of thinner castings and less weight than the traditional gold ornaments, and the same ornaments consume less gold.
• the soft gold surface layer is electroformed on the hard gold shell.
• the full-foot gold hard shell and the soft gold surface layer of the embodiment of the present invention are all caused by an electroforming process, and of course, may be caused by other known processes.
• Another aspect of the present invention provides a method of manufacturing a decorative member, characterized in that after forming a hard gold shell by electroforming, the hard gold shell is covered by electroforming to form a surface. a textured soft gold surface layer, wherein the hardness of the hard gold shell is higher than the hardness of the soft gold surface layer and the surface decorative texture is suede, sand surface, velvet sand surface, or other concave surface Texture.
• the manufacturing method may include first forming the hard gold shell having a hardness higher than 90 Hv by electroforming, and then electroforming to form a soft gold surface layer having a hardness of less than 40 Hv and covering the hard gold shell.
• the method may first form a hard gold shell by electroforming a wax mold covered with a conductive layer on a surface, and then electroforming the hard gold shell to form the surface texture.
• Soft gold surface The conductive layer can be a non-gold metal layer.
• the method can include removing wax after forming the soft gold surface layer having a surface texture to form a hollow shell, the hollow shell having a hardness or stiffness sufficient to support the soft gold surface layer.
• the amount of gold (Au) is 99.9% or more.
• FIG. 1 is a perspective view of a full-foot gold arrangement
• FIG. 2 is a cross-sectional view of the arrangement of FIG. 1 along the line AA'
• FIG. 3 is a wax pattern suitable for use in the fabrication of the arrangement of FIG. detailed description
• the display member 100 shown in FIGS. 1 and 2 includes an inner casing 110.
• the inner casing 110 is hollow and its inner shape follows the outer shape of the wax mold shown in FIG.
• the inner casing is all hard gold with a thickness of between about 60 and 350 microns ( ⁇ m).
• the outer casing 120 is a soft gold surface layer covering the inner casing 110.
• the outer casing 120 has a thickness of between about 20 and 80 microns ( ⁇ m). Since the soft gold outer casing 120 is fully supported by the inner core 120 of the hard gold, the thickness of the soft gold layer of the outer casing 120 is greatly reduced compared to the thickness of the conventional gold fittings, achieving the same surface area. The amount of gold can be greatly saved without affecting the appearance of the gold surface layer of the display piece.
• the outer casing 120 is a soft gold outer shell layer having a surface texture.
• the surface texture has a relief depth typically greater than 0.05 microns.
• the soft gold outer casing 120 is a velvet gold formed by an electroforming process
• the hard gold inner casing 110 is a smooth casing formed by an electroforming process.
• the formation of the garnish 100 will now be described using an electroforming process as an embodiment.
• a wax pattern 130 that determines the shape, configuration, and volume of the finished product is made according to design requirements.
• a surface of the wax or wax mold 130 is covered with a conductive layer 132.
• Conductive layer 132 can be silver or other metal.
• the conductive layer 132 is required to be uniform and smooth, and there should be no defects such as granules or leaks.
• the hard gold layer electroforming cell in the hard gold electroforming cell is gold sodium sulfite.
• the hard gold layer electroforming bath components also include: hard gold stabilizers, hard gold supplements, alkali chemicals, acid regulators, hard gold stabilizers and cylinder openers. Ready-made hard gold layer electroforming bath materials are available from Bailai Chemical Co., Ltd. (http://www.pinohk.com) in Kwai Chung, New Territories, Hong Kong or Pino Aliprandini (http://www.aliprandini.ch) in Switzerland.
• the exemplary operating conditions for the hard gold layer electroforming cell can be as follows:
• Set current (A) preset current density (A / dm 2 ) X total area of cast gold (dm 2 ) 2
• Estimated total weight of cast gold (g) thickness of cast gold (dm 2 ) X total area of cast gold (dm 2 ) X0.0193 ( g / dm 3
• Electroforming time (min) Ampere minutes (A*min) ⁇ Set current (A)
• the wax mold 130 with the hard gold inner casing 110 is placed in a velvet gold electroforming cell to form the soft velvet sand gold outer casing 120.
• the main component of the velvet gold electroforming pool velvet sand gold electroforming cell is gold salt or potassium cyanide.
• the composition of the velvet gold electroforming pool also includes: supplements (such as Bailey 2401 supplement), humectants, additives, stabilizers, PH conditioner (phosphoric acid), cylinder openers, fluff gloss (such as Zhihe CGF06 fluff gloss) ), and PH09 lowering agent.
• Ready-made velvet gold electroforming bath materials can also be purchased from Bailai Chemical Co., Ltd., Zhihe Technology (Asia) Co., Ltd. and/or ESSB Technology Development Co., Ltd.
• the exemplary operating conditions for the velvet gold layer electroforming cell can be as follows:-

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Adornments (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (4)

Families Citing this family (2)

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• 2013
  • 2013-04-08 HK HK13104246.9A patent/HK1189326A2/xx not_active IP Right Cessation
  • 2013-07-25 CN CN201310316144.3A patent/CN104097445A/zh active Pending
• 2014
  • 2014-04-08 WO PCT/IB2014/060513 patent/WO2014167486A2/zh active Application Filing
  • 2014-04-08 TW TW103112896A patent/TW201441426A/zh unknown

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