CN108977757A - A kind of processing method that the anti-ceramics of titanium tableware scratch - Google Patents
A kind of processing method that the anti-ceramics of titanium tableware scratch Download PDFInfo
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- CN108977757A CN108977757A CN201810926247.4A CN201810926247A CN108977757A CN 108977757 A CN108977757 A CN 108977757A CN 201810926247 A CN201810926247 A CN 201810926247A CN 108977757 A CN108977757 A CN 108977757A
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- titanium tableware
- titanium
- tableware
- scratch resistant
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Table Devices Or Equipment (AREA)
Abstract
The invention discloses a kind of scratch resistant processing methods of metal titanium tableware, method includes the following steps: Step 1: metal titanium tableware is heated under vacuum conditions, keep the temperature of metal titanium tableware at 550 DEG C~1100 DEG C, being passed through pressure is 1Pa~5.0 × 103Pa mixed gas, after 0.5h~30h, it cools to 100 DEG C with the furnace, forms one layer of scratch resistant composite ceramic layer in Titanium tableware surface；Step 2: the methods of the polishing of scratch resistant composite ceramic layer or sandblasting that Titanium tableware surface described in step 1 is formed to be gone to the TiHZ layer of skim-coat, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.The composite ceramics surface of the light not only has adhesion strength, also has excellent decorative performance.The titanium tableware and ceramic surface handled by the present invention scratches, and titanium tableware surface is intact, and ceramic surface does not have scratch.
Description
Technical field
The invention belongs to life appliance fields, more specifically more particularly to a kind of titanium tableware it is anti-ceramics scratch processing
Method.
Background technique
The excellent biocompatibility of Titanium obtains people and widely payes attention to, titanium joint, titanium skeletal fixation plate, titanium blood vessel branch
Frame etc. is widely used on human body recovery.Studies have shown that biologically inert is presented in Titanium in human body, do not sent out with human body
Raw allergic reaction.Therefore, metallic titanium is described as the mankind " friendly metal ".With the improvement of people ' s living standards and to healthy height
Degree is paid attention to, and people increasingly focus on the safety of tableware.China bowl is easy to break, and the process of sintering and the coloring in ceramics
In, some metals or metal oxide not bery friendly with human body can be added.Ni, Cr in stainless steel have significantly human body
Allergic reaction.
Illustrate the importance of metal titanium tableware by taking chopsticks as an example.Chopsticks are the important symbols of Chinese dietetic civilization, are from several
The cultural assets spread so far in thousand.The material of chopsticks is developed to by nonmetallic materials such as bamboo and wood, bone, porcelain, ivorys originally
The metal materials such as present copper, stainless steel and titanium are especially sent out in recent years so that the security performance of chopsticks is in the continuous improvement
The Titanium chopsticks that exhibition is got up, more embody the achievement of the research of material science.Titanium chopsticks not only have Metal chopsticks energy
High temperature sterilization is enough used, bamboo chopstick can be greatly reduced, hide bacterium in wood chopsticks, while also having and not having in use
Ni, Cr and Fe element and food of harmful human health and the dangerous feature of human contact.In this background, there is nothing
Poison, light weight, intensity are good, it is graceful, be not easy to damage the titanium tablewares such as the titanium chopsticks of advantage, titanium bowl, titanium fork, titanium knife meet the tendency of and
It is raw.
Metal titanium tableware is a kind of very safe tableware to human body, still, resistance to since the hardness of metallic titanium material is lower
It is poor to grind performance, therefore, when the tableware that metal titanium tableware and ceramic bowl, ceramic disk etc. hold food mutually scrapes, metallic titanium
Abrasion, the titanium to get off that is worn become tiny metal powder, are adhered to the surface of ceramic bowl, ceramic disk etc., and formation one is non-
Normal apparent trace, and be difficult to clean, drastically influence the beauty of tableware.For this purpose, having invented a kind of anti-ceramics of metal titanium tableware
The surface treatment method of scuffing can be realized metal titanium tableware during use, will not be scratched by ceramics, and will not make pottery
China bowl, ceramic panel surface leave scratch.
Summary of the invention
Technical problem to be solved by the present invention lies in the deficiencies for being directed to above-mentioned metal titanium tableware adhesion strength difference, provide
A kind of surface treatment method for metal titanium tableware improves its wear-resisting property to improve the surface hardness of metal titanium tableware, real
It is not scratched by ceramics when cash category titanium tableware and ceramic friction, scrapes and clash powder, do not leave scratch on crockery surface.
To achieve the above object, the invention provides the following technical scheme:
A kind of scratch resistant processing method of metal titanium tableware, method includes the following steps:
Step 1: metal titanium tableware is heated under vacuum conditions, keep the temperature of metal titanium tableware at 550 DEG C~1100 DEG C,
Being passed through pressure is that 1Pa~5.0 × 103Pa mixed gas cools to 100 DEG C with the furnace, in Titanium after 0.5h~30h
Tableware surface forms one layer of scratch resistant composite ceramic layer；
Step 2: the polishing of scratch resistant composite ceramic layer or sandblasting etc. that Titanium tableware surface described in step 1 is formed
Method removes the TiHZ layer of skim-coat, and Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface, the light
Bright composite ceramics surface not only has adhesion strength, also has excellent decorative performance.
Preferably, the Titanium tableware material is industrially pure titanium, TC4 titanium alloy.
Preferably, the mixed gas in step 1 is methane (CH4), the oxygen (O2), nitrogen of quality purity >=99.99%
Gas (N2), carbon dioxide (CO2).
Preferably, mixed gas described in step 1 is methane (CH4), oxygen (O2), nitrogen (N2), carbon dioxide
(CO2) mixing of four kinds of gas, the gas being specifically mixed into are as follows: CH4+O2 (volume ratio 1:1), CH4+N2 (volume ratio 1:1),
CH4+ CO2 (volume ratio 1:1), CO2+N2 (volume ratio 1:1), O2+N2 (volume ratio 1:1), CO2+O2 (volume ratio 1:1), CH4+
N2+O2 (volume ratio 1:1:1), CH4+CO2+O2 (volume ratio 1:1:1), CH4+N2+CO2 (volume ratio 1:1:1:1) and CH4+N2+
10 kinds of mixed gas of O2+CO2 (volume ratio 1:1:1:1).
Preferably, vacuum condition described in step 1 is vacuum degree≤1 × 10-2Pa.
Preferably, the temperature of metal titanium tableware described in step 1 is 550 DEG C~1100 DEG C.
Preferably, the pressure of mixed gas described in step 1 is 1Pa~5.0 × 103Pa.
Preferably, the reaction time of mixed gas described in step 1 is 0.5h~30h.
Compared with prior art, the beneficial effects of the present invention are: the 1, present invention uses mixed gas (methane (CH4), acetylene
(C2H2), oxygen (O2), nitrogen (N2), carbon dioxide (CO2), carbon monoxide (CO)) be used as reaction gas, be capable of providing C, N, O,
Four kinds of elemental gas such as H, react with the titanium under high temperature, generate answering for the Titanium containing four kinds of elemental gas such as C, N, O, H
Close ceramics Ti(C1-x-y-zNxOyHz), the composite ceramics hardness is high, and toughness is excellent, has anti-friction performance, not only increases metal
The wear-resisting property of titanium tableware, and leave no trace on crockery surface；
2, the composite ceramics Ti(C that the present invention generates1-x-y-zNxOyHz) in, TiHZ is mainly enriched in the surface layer of composite ceramics, and is in
Loose shape can easily remove TiHZ layers with the methods of polishing or sandblasting, and Titanium chopsticks surface shows the compound of light
Ceramic surface.
3, the composite ceramics Ti(C that the present invention generates1-x-y-zNxOyHz) with a thickness of in 10.0~70.0 μm, with polishing or spray
The methods of sand remove TiHZ weaker zone after film layer with a thickness of 5.0~50.0 μm.
4, the present invention is by adjusting the treatment temperature of metal titanium tableware and the ingredient of reaction gas, by regulating and controlling titanium chopsticks table
The hardness in face realizes the surface abrasion resistance of regulation metalic tableware, crockery surface is made not leave scratch.Metal titanium tableware table
The hardness in face is can be controlled between 400HV-1230HV.
5, treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, and ceramic surface does not have scratch.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
Step 1: the metal titanium tableware made of TA1 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the CH4+O2 mixed gas (volume ratio 1:1) that pressure is 5.0 × 103Pa, after 30h, furnace cooling at 550 DEG C
To 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with polishing method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 10.0 μm, and after removing TiHZ layers is with a thickness of hardness
5.0 μm, the hardness on surface is 400HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 2
Step 1: the metal titanium tableware made of TA2 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the CH4+N2 mixed gas (volume ratio 1:1) that pressure is 4.0 × 103Pa, after 28h, furnace cooling at 650 DEG C
To 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with polishing method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 15.3 μm, and after removing TiHZ layers is with a thickness of hardness
10.2 μm, the hardness on surface is 520HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 3
Step 1: the metal titanium tableware made of TA2 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the CH4+CO2 mixed gas (volume ratio 1:1) that pressure is 8.0 × 102Pa, after 20h, furnace cooling at 700 DEG C
To 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with polishing method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 18.6 μm, and after removing TiHZ layers is with a thickness of hardness
12.5 μm, the hardness on surface is 580HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 4
Step 1: the metal titanium tableware made of TA3 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the O2+N2 mixed gas (volume ratio 1:1) that pressure is 5.0 × 102Pa and cools to the furnace after 18h at 750 DEG C
100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with polishing method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 25.4 μm, and after removing TiHZ layers is with a thickness of hardness
20.2 μm, the hardness on surface is 625HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 5
Step 1: the metal titanium tableware made of TA2 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the O2+CO2 mixed gas (volume ratio 1:1) that pressure is 4.0 × 102Pa, after 10h, furnace cooling at 780 DEG C
To 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with polishing method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 27.2 μm, and after removing TiHZ layers is with a thickness of hardness
23.1 μm, the hardness on surface is 650HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 6
Step 1: the metal titanium tableware made of TA2 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the N2+CO2 mixed gas (volume ratio 1:1) that pressure is 3.0 × 102Pa and cools to the furnace after 6h at 800 DEG C
100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with blasting method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 40.5 μm, and after removing TiHZ layers is with a thickness of hardness
38.2 μm, the hardness on surface is 700HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 7
Step 1: the metal titanium tableware made of TA2 industrially pure titanium is heated under vacuum conditions, the temperature of metal titanium tableware is kept
Degree is passed through the CH4+O2+N2 mixed gas (volume ratio 1:1:1) that pressure is 1.0 × 102Pa, after 3h, with furnace at 810 DEG C
100 DEG C are cooled to, forms one layer of scratch resistant composite ceramic layer in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with blasting method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 38.2 μm, and after removing TiHZ layers is with a thickness of hardness
30.3 μm, the hardness on surface is 780HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 8
Step 1: the metal titanium tableware made of TC4 titanium alloy is heated under vacuum conditions, the temperature of metal titanium tableware is kept
At 880 DEG C, it is passed through the CH4+O2+CO2 mixed gas (volume ratio 1:1:1) that pressure is 5.0 × 101Pa, it is cold with furnace after 3h
But to 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with blasting method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 47.8 μm, and after removing TiHZ layers is with a thickness of hardness
35.0 μm, the hardness on surface is 900HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramic watch
Face does not have scratch.
Embodiment 9
Step 1: the metal titanium tableware made of TC4 titanium alloy is heated under vacuum conditions, the temperature of metal titanium tableware is kept
At 900 DEG C, it is passed through the CH4+N2+CO2 mixed gas (volume ratio 1:1:1) that pressure is 1.0Pa, after 0.5h, furnace cooling
To 100 DEG C, one layer of scratch resistant composite ceramic layer is formd in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with blasting method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 20.7 μm, and after removing TiHZ layers is with a thickness of hardness
15.2 μm, the hardness on surface is 1050HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramics
Surface does not have scratch.
Embodiment 10
Step 1: the metal titanium tableware made of TC4 titanium alloy is heated under vacuum conditions, the temperature of metal titanium tableware is kept
At 1100 DEG C, it is passed through the CH4+N2+O2+CO2 mixed gas (volume ratio 1:1:1:1) that pressure is 3.0 × 102Pa, by 0.5h
Afterwards, 100 DEG C are cooled to the furnace, forms one layer of scratch resistant composite ceramic layer in Titanium tableware surface；
Step 2: the composite ceramic layer that Titanium tableware surface described in step 1 is formed is removed skim-coat with blasting method
TiHZ layers, Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface.
The overall thickness of Titanium tableware surface composite ceramic layer is about 70.0 μm, and after removing TiHZ layers is with a thickness of hardness
50.0 μm, the hardness on surface is 1230HV.Treated titanium tableware and ceramic surface scratch, and titanium tableware surface is intact, ceramics
Surface does not have scratch.
Summary: metal titanium tableware under vacuum conditions, metal titanium tableware under high temperature and is passed through mixed reaction gas
Elemental gas in (methane, oxygen, nitrogen, carbon dioxide) reacts, metal titanium tableware Surface Creation Ti(C, N,
O, H) ceramic layer, the ceramic layer is with the hardness greater than 400HV.By adjusting each in the temperature and composite gas of Titanium chopsticks
The proportion of kind gas, so that it may realize the regulation of Titanium tableware surface hardness.The maximum hardness of Titanium tableware surface is reachable
1230HV。
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of scratch resistant processing method of metal titanium tableware, which is characterized in that method includes the following steps:
Step 1: metal titanium tableware is heated under vacuum conditions, keep the temperature of metal titanium tableware at 550 DEG C~1100 DEG C,
Being passed through pressure is that 1Pa~5.0 × 103Pa mixed gas cools to 100 DEG C with the furnace, in Titanium after 0.5h~30h
Tableware surface forms one layer of scratch resistant composite ceramic layer；
Step 2: the polishing of scratch resistant composite ceramic layer or sandblasting etc. that Titanium tableware surface described in step 1 is formed
Method removes the TiHZ layer of skim-coat, and Titanium tableware surface can be made to show bright scratch resistant composite ceramics surface, the light
Bright composite ceramics surface not only has adhesion strength, also has excellent decorative performance.
2. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: the Titanium
Tableware material is industrially pure titanium, TC4 titanium alloy.
3. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: in step 1
Mixed gas is methane (CH4), the oxygen (O2), nitrogen (N2), carbon dioxide (CO2) of quality purity >=99.99%.
4. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: institute in step 1
The mixed gas stated is the mixing of methane (CH4), oxygen (O2), nitrogen (N2), carbon dioxide (CO2) four kinds of gas, specific mixed
The gas of synthesis are as follows: CH4+O2 (volume ratio 1:1), CH4+N2 (volume ratio 1:1), CH4+ CO2 (volume ratio 1:1), CO2+N2
(volume ratio 1:1), O2+N2 (volume ratio 1:1), CO2+O2 (volume ratio 1:1), CH4+N2+O2 (volume ratio 1:1:1), CH4+CO2
+ O2 (volume ratio 1:1:1), CH4+N2+CO2 (volume ratio 1:1:1:1) and 10 kinds of CH4+N2+O2+CO2 (volume ratio 1:1:1:1)
Mixed gas.
5. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: institute in step 1
The vacuum condition stated is vacuum degree≤1 × 10-2Pa.
6. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: institute in step 1
The temperature for the metal titanium tableware stated is 550 DEG C~1100 DEG C.
7. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: institute in step 1
The pressure for the mixed gas stated is 1Pa~5.0 × 103Pa.
8. a kind of scratch resistant processing method of metal titanium tableware according to claim 1, it is characterised in that: institute in step 1
The reaction time for the mixed gas stated is 0.5h~30h.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380856A (en) * | 2000-04-19 | 2002-11-20 | 西铁城钟表股份有限公司 | Tableware and method for surface treatment thereof, substrate having hard decorative coating film and method for production thereof, and cutlery |
| CN106637049A (en) * | 2017-01-03 | 2017-05-10 | 中山源谥真空科技有限公司 | Pure titanium or titanium alloy and surface hardening method thereof |
-
2018
- 2018-08-15 CN CN201810926247.4A patent/CN108977757A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380856A (en) * | 2000-04-19 | 2002-11-20 | 西铁城钟表股份有限公司 | Tableware and method for surface treatment thereof, substrate having hard decorative coating film and method for production thereof, and cutlery |
| CN106637049A (en) * | 2017-01-03 | 2017-05-10 | 中山源谥真空科技有限公司 | Pure titanium or titanium alloy and surface hardening method thereof |
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