CN1033177C - Product with golden surface - Google Patents

Abstract

The present invention relates to a product with a metal surface, which comprises a heat-resistant base material and a coating layer at the surface of the heat-resistant base material. The coating layer comprises base layers of metal of Ti, and the like, nonmetal base layers of silicon oxide, nitrogen oxide, nitrogen carbide and nitrogen-oxygen carbide, an ultrathin transparent mono-metal transition layer and a surface layer of gold or gold alloy.

Description

Goods with golden surface coating

The present invention is a kind of goods with golden surface coating, belongs to ion-plating technique.

At present people have worked out various ion film-plating methods such as so-called physical vapor deposition and chemical vapour deposition, the application of these methods, make on external ornament and goods, be coated with golden TiN, ZrN, the TaN coating becomes possibility.Though yet the coating that makes like this has the color of similar gold, but still there is a big difference for the luxurious tone that natural gold had that the gold color and luster of coating compares, goods chromatic aberration defect for uneven surface is just more obvious, and this gilt can only be used for limited several external ornaments and goods, in order to improve this situation United States Patent (USP) 912,548 at its golden TiN, ZrN, plate the mixture film of one deck TiN and metal on the TaN coating again, its shade deviation is apart from increasing, but the rarer vegetables of rete quality, porosity is higher, and sticking power is relatively poor, and is corrosion-resistant, abrasion resistance properties is also relatively poor, and tone be difficult for to be adjusted, this technological operation inconvenience of getting up, and cost is also higher.

The objective of the invention is to improve above-mentioned deficiency and a kind of goods with golden surface coating are provided, this goods are made up of the coating that three on heat-stable matrix and its or two retes constitute, have corrosion-resistant, anti abrasive advantage, can eliminate TiN again in the uneven surface plated film smooth finish fineless and smooth shortcoming of high texture not, and the coating tone is near natural gold or alloy tone.

The present invention is the goods of golden surface coating, form by the coating that three retes on heat-stable matrix and its constitute, wherein first rete is one or more compound layers in the oxide compound that forms of the titanium that is connected mutually with matrix or silicon, oxygen, carbon, nitrogen, oxynitride, nitrogen carbide, nitrogen-oxygen carbide, the nitride, second rete is the nickel intermediate metal that is connected mutually with first rete, and the tertiary membrane layer is gold or the au-alloy rete that is connected mutually with second rete; These goods also can be made up of the coating that two retes on matrix and its are formed, first rete is oxide compound, oxynitride, nitrogen carbide, nitrogen-oxygen carbide, the nitride that the titanium that is connected mutually with matrix or silicon, oxygen, carbon, nitrogen form, and second rete is gold or the au-alloy rete that is connected mutually with first rete; The matrix of these goods is made of steel, brass, nickel, silver, aluminium alloy, pottery, plated item or heat stable resin.

The present invention makes bottom membrane with oxide compound, oxynitride, nitrogen carbide, the nitrogen-oxygen carbide of metal or nonmetal silicon, the membrane-coating granules exquisiteness, porosity is low, quality is intensive, corrosion-resistant, the abrasion resistance properties height, color easily changes with the change of thicknesses of layers, color is various, can adapt to the color of various extexines, and selection range is very big, the present invention is second rete with transparent single metal, coating process is simplified greatly, and good with the sticking power of substrate, makes outermost gold and au-alloy rete be easy to lining.

Below the present invention is described in detail.

Example 1 in the ion film coating machine of packing into after the Stainless Steel Watch Case cleaning, is evacuated to 6.6 * 10 with coating chamber ^-3Pa charges into argon gas to 2～3Pa, and the volts DS that watchcase is applied 1KV bombards cleaning then.Behind the end of bombardment, continue to vacuumize.Subsequently to coating chamber (3～6) * 10 that fill oxygen ^-1Pa opens evaporation source in the case and makes Ti evaporation ionization, forms plasma body, the Ti ion that is evaporated ionization reacts with the oxygen of sending into, generate rose golden titanium oxide layer on watchcase surface, and then to plate second rete be Ni transparent metal layer as thin as a wafer, vacuum is evacuated to 6.6 * 10 ^-3Charge into Ar gas to 4 * 10 behind the Pa ^-2Pa, open evaporating and ionizing source, make Ni evaporation ionization form plasma body, lining is on TiO, it is the transition layer as thin as a wafer of layer of transparent, this rete only plates a kind of coating process of metal and has simplified the technology of plating the mixture film of YiN and metal in the prior art greatly, and the sticking power enhancing, and helps the lining of tertiary membrane layer gold.After this, again coating chamber is evacuated to 6.6 * 10 ^-3Pa makes golden heating evaporation ionization with evaporation source, and the watchcase that is coated with such coating will present the color that is similar to natural gold, and along with the increase of metal thickness, the tone of gold layer is more and more near pure gold tone.When outermost layer gold layer thickness, is plated the tone of decorating plating and also changes when increasing to 1 μ m by 700A (0.07 μ m) thereupon.Gold was worn away prematurely and expose following coating, but because coating is harder, and being gold tone, any concentrated wear of extexine gold layer is all unimportant.Utilize the thickness that changes coating to reach and change the substrate surface coating color, make it color near surface gold layer.

Example 2 cleans back ion plating one deck silicon oxynitride with Stainless Steel Watch Band, and method is same with example 1, and different is, and also to charge into its ratio of nitrogen when charging into oxygen be N ₂: O ₂=100: 8, the evaporating and ionizing source of this moment makes Si evaporation ionization, uses ion electroplating method flash layer of transparent metal Ni as thin as a wafer then, uses electrochemical method at Ni surface deposition layer of Au-Ni-Cu alloy at last.The watchband that makes like this, existing luxurious gold tone good wear resistance and erosion resistance are arranged again, and cost is lower.

Example 3 cleans back ion plating one deck TiCN with Stainless Steel Watch Band, and this technology is with example 1, and what charge into simultaneously to coating chamber in this technology is nitrogen and carbon (acetylene), and its amount is than being N ₂: C=100: 4.Use ion electroplating method flash transparent layer of Ni as thin as a wafer then, use electrochemical method at last at Ni surface deposition one deck gold.

Example 4 cleans back ion plating one deck nitrogen oxygen titanium carbide with a Stainless Steel Watch Band, and this method and example 1 after just bombardment vacuumizes, promptly charge into nitrogen to coating chamber together simultaneously, and its amount of oxygen and carbon (acetylene) is than being Ni ₂: O ₂: C=100: 3: 5.Use ion electroplating method flash layer of transparent Ni as thin as a wafer then, use electrochemical method at last at Ni surface deposition one deck gold.

Base materials all in above-mentioned all examples can be not limited to stainless steel and brass, and other usually also can be as base material of the present invention as the material that outer decorative element adopted as copper alloy, aluminium alloy etc.If for stable on heating consideration, also can select for use pottery and glass to make base material.Use non-metallic material can produce the getable effect of metallic substance equally.

Different times, different region, client is to the hobby difference of color, and this just requires watchcase, and the tone of watchband must change to some extent with client's hobby.As change the thickness of TixOy, ZrxOy, FexNy rete, the tone and the color and luster that just can change the matrix surface coating become rose gold etc., preparation TixOy, ZrxOy or FexNy not only can plate out with ion, also can penetrate method or chemical Vapor deposition process with spilling.

Claims (4)

1. goods with golden surface coating, it is characterized in that it is made up of the coating that three retes on heat-stable matrix and its constitute, wherein first rete is one or more compound layers in the oxide compound that forms of the titanium that is connected mutually with matrix or silicon, oxygen, carbon, nitrogen, oxynitride, nitrogen carbide, nitrogen-oxygen carbide, the nitride, second rete is the nickel intermediate metal that is connected mutually with first rete, and the tertiary membrane layer is gold or the au-alloy rete that is connected mutually with second rete.

2. the goods with golden surface coating of claim 1 is characterized in that heat-resisting matrix wherein is made of steel, brass, nickel, silver, aluminium alloy, pottery, plated item or heat stable resin.

3. goods with golden surface coating, it is characterized in that the coating that it is made up of two retes on heat-stable matrix and its forms, wherein first rete is oxide compound, oxynitride, nitrogen carbide, nitrogen-oxygen carbide, the nitride that the titanium that is connected mutually with matrix or silicon, oxygen, carbon, nitrogen form, and second rete is gold or the au-alloy rete that is connected mutually with first rete.

4. the goods with golden surface coating of claim 3 is characterized in that heat-resisting matrix wherein is made of steel, brass, nickel, silver, aluminium alloy, pottery, plated item or heat stable resin.