CN110064892A - A kind of rapidoprint and its processing method of stainless steel tableware - Google Patents
A kind of rapidoprint and its processing method of stainless steel tableware Download PDFInfo
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- CN110064892A CN110064892A CN201910299168.XA CN201910299168A CN110064892A CN 110064892 A CN110064892 A CN 110064892A CN 201910299168 A CN201910299168 A CN 201910299168A CN 110064892 A CN110064892 A CN 110064892A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
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Abstract
The invention discloses a kind of rapidoprint of stainless steel tableware and its processing method, the processing method of the stainless steel tableware includes the following steps: that P1, material prepare: according to tableware specification, selecting stainless steel materials, is cut, obtain blank plate；P2, preheating；P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；P4, finishing；P5, blank cleaning；P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtain tableware finished product, the rapidoprint and its processing method of a kind of stainless steel tableware provided by the invention make stainless steel materials using the material of rational proportion, can effectively improve corrosion-resistant and antibacterial effect, and in tableware forming process, using multiple tracks processing technology, surface cleanliness is improved, guarantees surface treatment effect, avoids residual untreated areas, it effectively improves and stability and structural strength, guarantees using effect.
Description
Technical field
The present invention relates to the rapidoprints and its processing of stainless steel tableware technical field more particularly to a kind of stainless steel tableware
Method.
Background technique
In present daily life, people's diet all be unable to do without tableware, and for safety and sanitation and convenience, mostly
Stainless steel tableware will be selected, cleaning is conducive to, is easy to use.
But the stainless steel material that existing stainless steel tableware is selected is relatively simple, constituent is unreasonable, at the same into
When row processing, it not only it is impossible to ensure that its safety and sanitation, but also not can guarantee the fine processing Chengdu to its surface, cause tableware
Rough surface, influence using, and subsequent heat treatment mode is unstable, be easy when in use it is impaired, reduce service life and
Safety, rapidoprint and method remain to be further improved.
Summary of the invention
The purpose of the present invention is to solve disadvantage existing in the prior art, and a kind of stainless steel tableware proposed plus
Work material and its processing method.
To achieve the goals above, present invention employs following technical solutions:
A kind of rapidoprint and its processing method of stainless steel tableware, the processing method of the stainless steel tableware include the following steps:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
Preferably, the stainless steel materials of the P1 step include carbon 0.02%-0.03%, silicon 0.2%-0.5%, manganese 0.5%-
0.8%, chromium 15%-20%, nickel 8%-12%, copper 3%-5% and iron 60%-90%.
Preferably, the preheating method of the P2 step is to be placed in electric furnace, and temperature rise is 15 centigrade per minutes to 20
Centigrade per minute.
Preferably, the blank cleaning of the P5 step is cleaned using alcohol.
Preferably, the surface polishing of the P6 step is chemical polishing.
Preferably, the chemically polishing method includes the following steps:
S1, surface blot processing: the blank of polished processing is put into acetone, is heated to 35 degrees Celsius to 40 degrees Celsius, is impregnated
30-40 minutes；
S2, first drying: taking out blank, and surface is rinsed 8 minutes to 10 minutes using sodium bicarbonate solution, then carries out one
Secondary drying and processing；
S3, surface active: being placed in process tank for the blank after first drying, be immersed into activating solution, impregnates 2 hours to 3 small
When；
S4, secondary drying: the blank after taking out activation is rinsed 3 minutes to 5 minutes using sour hydrogen sodium solution, is then carried out
Secondary drying processing；
S5, polishing treatment: the blank after secondary drying is placed in polishing pond, is immersed into polishing fluid, using ultrasonic vibration
It 35 seconds to 45 seconds, is spaced 15 seconds to 20 seconds, runs 10 times to 12 times, be processed by shot blasting repeatedly；
S6, post-processing: the blank after polishing being rinsed 3 minutes to 5 minutes using deionized water, is then placed in electric furnace,
150 degrees Celsius to 170 degrees Celsius are heated to, finished product tableware can be obtained in cooled to room temperature.
Preferably, the activating solution of the S3 step includes cocoanut fatty acid diethanolamide 5%-8%, urea 2-5%, castor
Sesame oil acid butyl ester sodium sulphate 3%-8%, glyceryl monostearate 4%-9% and water 80%-90%.
Preferably, the polishing fluid of the S5 step includes nitric acid 2%-5%, hydrofluoric acid 1%-3%, hydrogen peroxide 2%-5%, tristearin
Sour aluminium 1%-3%, ammonium pyrophosphate 2%-6%, cerium chloride 0.5%-0.8%, furfuryl alcohol 15%-20% and water 60%-85%.
Preferably, the rate of heat addition of the S6 step is 5 degrees Celsius to 8 centigrade per minutes.
The rapidoprint and its processing method of a kind of stainless steel tableware provided by the invention use the material system of rational proportion
Make stainless steel materials, corrosion-resistant and antibacterial effect can be effectively improved, and in tableware forming process, work is processed using multiple tracks
Skill improves surface cleanliness, guarantees surface treatment effect, avoids residual untreated areas, effectively improves and stability and structure
Intensity guarantees using effect.
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.
A kind of rapidoprint and its processing method of stainless steel tableware, the processing method of the stainless steel tableware include following step
It is rapid:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
Preferably, the stainless steel materials of the P1 step include carbon 0.02%-0.03%, silicon 0.2%-0.5%, manganese
0.5%-0.8%, chromium 15%-20%, nickel 8%-12%, copper 3%-5% and iron 70%-90%.
Preferably, the preheating method of the P2 step is to be placed in electric furnace, temperature rise is 15 centigrade per minutes
To 20 centigrade per minutes.
Preferably, the blank cleaning of the P5 step is cleaned using alcohol.
Preferably, the surface polishing of the P6 step is chemical polishing.
Preferably, the chemically polishing method includes the following steps:
S1, surface blot processing: the blank of polished processing is put into acetone, is heated to 35 degrees Celsius to 40 degrees Celsius, is impregnated
30-40 minutes；
S2, first drying: taking out blank, and surface is rinsed 8 minutes to 10 minutes using sodium bicarbonate solution, then carries out one
Secondary drying and processing；
S3, surface active: being placed in process tank for the blank after first drying, be immersed into activating solution, impregnates 2 hours to 3 small
When；
S4, secondary drying: the blank after taking out activation is rinsed 3 minutes to 5 minutes using sour hydrogen sodium solution, is then carried out
Secondary drying processing；
S5, polishing treatment: the blank after secondary drying is placed in polishing pond, is immersed into polishing fluid, using ultrasonic vibration
It 35 seconds to 45 seconds, is spaced 15 seconds to 20 seconds, runs 10 times to 12 times, be processed by shot blasting repeatedly；
S6, post-processing: the blank after polishing being rinsed 3 minutes to 5 minutes using deionized water, is then placed in electric furnace,
150 degrees Celsius to 170 degrees Celsius are heated to, finished product tableware can be obtained in cooled to room temperature.
Preferably, the activating solution of the S3 step includes cocoanut fatty acid diethanolamide 5%-8%, urea 2-
5%, ricinoleic acid butyl ester sodium sulphate 3%-8%, glyceryl monostearate 4%-9% and water 80%-90%.
Preferably, the polishing fluid of the S5 step include nitric acid 2%-5%, hydrofluoric acid 1%-3%, hydrogen peroxide 2%-5%,
Aluminum stearate 1%-3%, ammonium pyrophosphate 2%-6%, cerium chloride 0.5%-0.8%, furfuryl alcohol 15%-20% and water 70%-85%.
Preferably, the rate of heat addition of the S6 step is 5 degrees Celsius to 8 centigrade per minutes.
The rapidoprint and its processing method of a kind of stainless steel tableware provided by the invention use the material system of rational proportion
Make stainless steel materials, corrosion-resistant and antibacterial effect can be effectively improved, and in tableware forming process, work is processed using multiple tracks
Skill improves surface cleanliness, guarantees surface treatment effect, avoids residual untreated areas, effectively improves and stability and structure
Intensity guarantees using effect.
Embodiment 1
A kind of rapidoprint and its processing method of stainless steel tableware, the processing method of the stainless steel tableware include the following steps:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
Preferably, the stainless steel materials of the P1 step include carbon 0.02%, silicon 0.3%, manganese 0.7%, chromium 16%, nickel
12%, copper 3% and iron 67.98%.
Preferably, the preheating method of the P2 step is to be placed in electric furnace, temperature rise is 15 centigrade per minutes
To 20 centigrade per minutes.
Preferably, the blank cleaning of the P5 step is cleaned using alcohol.
Preferably, the surface polishing of the P6 step is chemical polishing.
Preferably, the chemically polishing method includes the following steps:
S1, surface blot processing: the blank of polished processing is put into acetone, is heated to 35 degrees Celsius to 40 degrees Celsius, is impregnated
30-40 minutes；
S2, first drying: taking out blank, and surface is rinsed 8 minutes to 10 minutes using sodium bicarbonate solution, then carries out one
Secondary drying and processing；
S3, surface active: being placed in process tank for the blank after first drying, be immersed into activating solution, impregnates 2 hours to 3 small
When；
S4, secondary drying: the blank after taking out activation is rinsed 3 minutes to 5 minutes using sour hydrogen sodium solution, is then carried out
Secondary drying processing；
S5, polishing treatment: the blank after secondary drying is placed in polishing pond, is immersed into polishing fluid, using ultrasonic vibration
It 35 seconds to 45 seconds, is spaced 15 seconds to 20 seconds, runs 10 times to 12 times, be processed by shot blasting repeatedly；
S6, post-processing: the blank after polishing being rinsed 3 minutes to 5 minutes using deionized water, is then placed in electric furnace,
150 degrees Celsius to 170 degrees Celsius are heated to, finished product tableware can be obtained in cooled to room temperature.
Preferably, the activating solution of the S3 step includes cocoanut fatty acid diethanolamide 5%, urea 3%, castor-oil plant
Butyl oleate sodium sulphate 6%, glyceryl monostearate 5% and water 81%.
Preferably, the polishing fluid of the S5 step includes nitric acid 2%, hydrofluoric acid 3%, hydrogen peroxide 5%, aluminum stearate
1%, ammonium pyrophosphate 4%, cerium chloride 0.6%, furfuryl alcohol 15% and water 69.4%.
Preferably, the rate of heat addition of the S6 step is 5 degrees Celsius to 8 centigrade per minutes.
Embodiment 2
A kind of rapidoprint and its processing method of stainless steel tableware, the processing method of the stainless steel tableware include the following steps:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
Preferably, the stainless steel materials of the P1 step include carbon 0.03%, silicon 0.3%, manganese 0.7%, chromium 15%, nickel
10%, copper 5% and iron 68.97%.
Preferably, the preheating method of the P2 step is to be placed in electric furnace, temperature rise is 15 centigrade per minutes
To 20 centigrade per minutes.
Preferably, the blank cleaning of the P5 step is cleaned using alcohol.
Preferably, the surface polishing of the P6 step is physics polishing.
Preferably, the physics polishing method includes the following steps:
S1, polished blank is used to clear water flushing 5 minutes to 8 minutes, then naturally dry；
On S2, the polishing machine turntable that the blank dried is loaded, under 50 rpms to 60 rpms rates, at the uniform velocity turn
It is dynamic；
S3, sanding and polishing processing is carried out using polished silicon wafer fitting blank surface, and continues to spray polishing fluid, continue 15 minutes extremely
20 minutes；
S4, the blank after polishing is impregnated using sodium bicarbonate solution, continues 15 minutes to 20 minutes, is then rushed with clear water
It washes；
S5, the blank after flushing is put into electric furnace, is heated to 150 degrees Celsius to 170 degrees Celsius, naturally cools to room
Finished product tableware can be obtained in temperature.
Preferably, the polishing fluid of the S3 step includes that nitre fatty acid polyglycol ethylene glycol ester 6%, anhydrous sorbitol are poly-
Ethylene oxide ether 15%, chelating agent hydroxyethylethylene diamine tri-acetic acid 5% and water 74%.
Preferably, the rate of heat addition of the S5 step is 5 degrees Celsius to 8 centigrade per minutes.
Embodiment 3
A kind of rapidoprint and its processing method of stainless steel tableware, the processing method of the stainless steel tableware include the following steps:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
Preferably, the stainless steel materials of the P1 step include carbon carbon 0.03%, silicon 0.2%, manganese 0.8%, chromium 12%, nickel
11%, copper 4% and iron 71.97%.
Preferably, the preheating method of the P2 step is to be placed in electric furnace, temperature rise is 15 centigrade per minutes
To 20 centigrade per minutes.
Preferably, the blank cleaning of the P5 step is cleaned using alcohol.
Preferably, the surface polishing of the P6 step is chemical polishing.
Preferably, the chemically polishing method includes the following steps:
S1, surface blot processing: the blank of polished processing is put into acetone, is heated to 35 degrees Celsius to 40 degrees Celsius, is impregnated
30-40 minutes；
S2, first drying: taking out blank, and surface is rinsed 8 minutes to 10 minutes using sodium bicarbonate solution, then carries out one
Secondary drying and processing；
S3, surface active: being placed in process tank for the blank after first drying, be immersed into activating solution, impregnates 2 hours to 3 small
When；
S4, secondary drying: the blank after taking out activation is rinsed 3 minutes to 5 minutes using sour hydrogen sodium solution, is then carried out
Secondary drying processing；
S5, polishing treatment: the blank after secondary drying is placed in polishing pond, is immersed into polishing fluid, using ultrasonic vibration
It 35 seconds to 45 seconds, is spaced 15 seconds to 20 seconds, runs 10 times to 12 times, be processed by shot blasting repeatedly；
S6, post-processing: the blank after polishing being rinsed 3 minutes to 5 minutes using deionized water, is then placed in electric furnace,
150 degrees Celsius to 170 degrees Celsius are heated to, finished product tableware can be obtained in cooled to room temperature.
Preferably, the activating solution of the S3 step includes cocoanut fatty acid diethanolamide 5%-8%, urea 2-
5%, ricinoleic acid butyl ester sodium sulphate 3%-8%, glyceryl monostearate 4%-9% and water 80%-90%.
Preferably, the polishing fluid of the S5 step includes phosphatase 11 2%, sulfuric acid 2%, aluminium ion sulfuric acid 15%, corrosion inhibiter
5%, brightener 5% and water 61%.
Claims (9)
1. the rapidoprint and its processing method of a kind of stainless steel tableware, it is characterised in that: the processing method of the stainless steel tableware
Include the following steps:
P1, material prepare: according to tableware specification, selecting stainless steel materials, cut, obtain blank plate；
P2, preheating: blank plate is put into heating furnace, is preheated to 250 degrees Celsius to 280 degrees Celsius, keeps the temperature 10 minutes to 15
Minute；
P3, punch forming: the plate after preheating is placed on die for punching machine, carries out punch forming, forms tableware blank；
P4, finishing: tableware blank is loaded on CNC lathe, is carried out surface finish work, and remove burr, is obtained
Finishing stock；
P5, blank cleaning: starting the cleaning processing finishing stock, obtains cleaning blank；
P6, surface treatment: surface polishing treatment is carried out to cleaning blank, obtains tableware finished product.
2. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 1, it is characterised in that: described
The stainless steel materials of P1 step include carbon 0.02%-0.03%, silicon 0.2%-0.5%, manganese 0.5%-0.8%, chromium 15%-20%, nickel 8%-
12%, copper 3%-5% and iron 70%-90%.
3. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 1, it is characterised in that: described
The preheating method of P2 step is to be placed in electric furnace, and temperature rise is 15 centigrade per minutes to 20 centigrade per minutes.
4. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 1, it is characterised in that: described
The blank cleaning of P5 step is cleaned using alcohol.
5. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 1, it is characterised in that: described
The surface polishing of P6 step is chemical polishing.
6. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 5, it is characterised in that: described
Chemically polishing method includes the following steps:
S1, surface blot processing: the blank of polished processing is put into acetone, is heated to 35 degrees Celsius to 40 degrees Celsius, is impregnated
30-40 minutes；
S2, first drying: taking out blank, and surface is rinsed 8 minutes to 10 minutes using sodium bicarbonate solution, then carries out one
Secondary drying and processing；
S3, surface active: being placed in process tank for the blank after first drying, be immersed into activating solution, impregnates 2 hours to 3 small
When；
S4, secondary drying: the blank after taking out activation is rinsed 3 minutes to 5 minutes using sour hydrogen sodium solution, is then carried out
Secondary drying processing；
S5, polishing treatment: the blank after secondary drying is placed in polishing pond, is immersed into polishing fluid, using ultrasonic vibration
It 35 seconds to 45 seconds, is spaced 15 seconds to 20 seconds, runs 10 times to 12 times, be processed by shot blasting repeatedly；
S6, post-processing: the blank after polishing being rinsed 3 minutes to 5 minutes using deionized water, is then placed in electric furnace,
150 degrees Celsius to 170 degrees Celsius are heated to, finished product tableware can be obtained in cooled to room temperature.
7. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 6, it is characterised in that: described
The activating solution of S3 step includes cocoanut fatty acid diethanolamide 5%-8%, urea 2-5%, ricinoleic acid butyl ester sodium sulphate 3%-
8%, glyceryl monostearate 4%-9% and water 80%-90%.
8. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 6, it is characterised in that: described
The polishing fluid of S5 step includes nitric acid 2%-5%, hydrofluoric acid 1%-3%, hydrogen peroxide 2%-5%, aluminum stearate 1%-3%, ammonium pyrophosphate
2%-6%, cerium chloride 0.5%-0.8%, furfuryl alcohol 15%-20% and water 70%-85%.
9. according to the rapidoprint and its processing method of a kind of stainless steel tableware of the claim 6, it is characterised in that: described
The rate of heat addition of S6 step is 5 degrees Celsius to 8 centigrade per minutes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411309A (en) * | 2020-05-14 | 2020-07-14 | 江苏铭星供水设备有限公司 | Stainless steel capable of inhibiting formation of bacterial biofilm and preparation method thereof |
| CN112719010A (en) * | 2021-01-27 | 2021-04-30 | 孙翠华 | Stainless steel tableware punch forming process |
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| CN111411309A (en) * | 2020-05-14 | 2020-07-14 | 江苏铭星供水设备有限公司 | Stainless steel capable of inhibiting formation of bacterial biofilm and preparation method thereof |
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