CN115181931A - Wear-resistant penetrated layer surface treatment process - Google Patents
Wear-resistant penetrated layer surface treatment process Download PDFInfo
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- CN115181931A CN115181931A CN202210794703.0A CN202210794703A CN115181931A CN 115181931 A CN115181931 A CN 115181931A CN 202210794703 A CN202210794703 A CN 202210794703A CN 115181931 A CN115181931 A CN 115181931A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000004381 surface treatment Methods 0.000 title claims abstract description 19
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 41
- 230000000149 penetrating effect Effects 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 21
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 230000008595 infiltration Effects 0.000 claims abstract description 6
- 238000001764 infiltration Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000004321 preservation Methods 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- HBXWYZMULLEJSG-UHFFFAOYSA-N chromium vanadium Chemical compound [V][Cr][V][Cr] HBXWYZMULLEJSG-UHFFFAOYSA-N 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000012255 powdered metal Substances 0.000 claims description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008021 deposition Effects 0.000 abstract description 9
- 238000009713 electroplating Methods 0.000 abstract description 9
- 239000013589 supplement Substances 0.000 abstract description 8
- 239000000047 product Substances 0.000 abstract description 5
- 239000002923 metal particle Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000008520 organization Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/52—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
- C23C10/54—Diffusion of at least chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a surface treatment process of a wear-resistant infiltrated layer, which comprises the following operation steps: the method is characterized in that a pin shaft with the diameter of 200mm is selected and made of 40CrNiMo, the penetrating agent is composed of powdery metal particles, ammonium chloride and aluminum oxide, the metal powder is an penetrating element, and the ammonium chloride is a catalyst. The wear-resistant infiltration layer surface treatment process integrates the appearance of a product and a wear-resistant material tissue into a whole through a pretreated infiltration layer to form a compact wear-resistant composite layer, utilizes a gap of a hard metal layer through an electroplating process to further fill the gap outside the composite layer, and the hard metal layer effectively supplements and fills the gap through a deposition effect.
Description
Technical Field
The invention relates to the technical field of wear-resistant treatment, in particular to a surface treatment process of a wear-resistant permeable layer.
Background
The metal infiltration technology is a technology which makes metal elements undergo the processes of adsorption, diffusion and the like under certain temperature and environmental conditions to form an alloy layer on the surface of a part, thereby changing the structure, the components and the performance of the surface of the part.
When the large pin shaft moves repeatedly, the wear resistance is high, the existing surface treatment is single, the adhesive force is limited, and improvement needs to be carried out aiming at the problem.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects in the prior art, the invention provides a wear-resistant penetrated layer surface treatment process to solve the problems.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a wear-resistant penetrated layer surface treatment process comprises the following operation steps:
s1, selecting materials
Selecting a pin shaft with the diameter of 200mm and made of 40CrNiMo
S2, blending of penetrating agent
The penetrating agent consists of three parts, namely powdered metal particles, ammonium chloride and aluminum oxide, wherein the metal powder is a penetrating element, the ammonium chloride is a catalyst, the ammonium chloride is used as a bridge for exchanging the penetrating element and an iron element, the aluminum oxide is a filling agent, the environment in a supporting tank of the penetrating agent controls the flow of molten metal, and the components have the following mass proportions: 20% of vanadium powder, 30% of chromium powder, 49% of aluminum oxide and 1% of ammonium chloride.
S3, blanking
Uniformly mixing the penetrating agent and the pin shaft, placing the mixture into a stainless steel tank, placing the stainless steel tank into a vacuum furnace, and carrying out chromium-vanadium co-penetration operation in a nitrogen environment.
S4, preparation
And (3) mixing the penetrant in the step (S2) with the pin shaft in the step (S1) according to a mass ratio of 2:1, uniformly mixing and placing the mixture in a steel tank, placing the steel tank in a vacuum furnace, covering an inner cover, opening the vacuum furnace to pump vacuum, and sleeving a heating cover after the vacuum furnace is determined to have no air leakage.
S5, heating
Heating a vacuum furnace, drying and dewatering at 0-300 ℃ when the vacuum furnace is heated, introducing nitrogen at 500 ℃, controlling the pressure to be 0.03MPa by pressure discharge, and simultaneously maintaining the nitrogen environment.
S6, discharging
After the heat preservation is finished, the temperature in the vacuum furnace is reduced to about 500 ℃, then the heating cover is removed, the cooling cover is sleeved for accelerating cooling, and the temperature is reduced to below 100 ℃ and then the furnace is discharged.
S7, heat preservation
The heat preservation time is 16 hours, the heat preservation temperature is controlled at 920 ℃, a infiltrated layer is generated, and the Vickers hardness of the infiltrated layer is 2292HV 0.05 。
Preferably, the hard metal layer is further filled outside the composite layer by utilizing the gap of the hard metal layer through an electroplating process, and the hard metal layer effectively supplements and fills the gap through a deposition effect.
Preferably, the pin shaft in step S4 is housed and protected by a sleeve.
Preferably, the nitrogen atmosphere, the reaction pressure, the components of the permeating agent used in the reaction, and the like in the vacuum furnace are kept the same during heating in the step S5.
Preferably, the heat preservation temperature in the S7 is controlled to be between 920 and 980 ℃.
Preferably, the measurement in S7 is performed by a vickers hardness tester.
(III) advantageous effects
Compared with the prior art, the invention provides a wear-resistant infiltration layer surface treatment process, which has the following beneficial effects:
1. the surface treatment process of the wear-resistant seeping layer integrates the appearance of a product and a wear-resistant material tissue into a whole through the seeping layer subjected to pretreatment to form a compact wear-resistant composite layer, the gap of the hard metal layer is utilized to be further filled outside the composite layer through an electroplating process, the hard metal layer effectively supplements and fills the gap through a deposition effect, and the process is equivalent to the protection of a double-composite layer and a metal hard layer, so that the service life of the motion pin shaft is remarkably prolonged.
2. The wear-resistant permeable layer surface treatment process can optimize the production process, is beneficial to production, is more convenient in production organization, improves the yield, reduces the energy consumption, has less investment, and is beneficial to organization and production scheduling to form a scale effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides the following technical scheme:
example one
A wear-resistant penetrated layer surface treatment process comprises the following operation steps:
s1, selecting materials
Selecting a pin shaft with the diameter of 200mm and made of 40CrNiMo
S2, blending of penetrating agent
The penetrating agent consists of three parts, namely powdered metal particles, ammonium chloride and aluminum oxide, wherein the metal powder is a penetrating element, the ammonium chloride is a catalyst, the ammonium chloride is used as a bridge for exchanging the penetrating element and an iron element, the aluminum oxide is a filling agent, the environment in a supporting tank of the penetrating agent controls the flow of molten metal, and the components have the following mass proportions: 20% of vanadium powder, 30% of chromium powder, 49% of aluminum oxide and 1% of ammonium chloride.
S3, blanking
Uniformly mixing the penetrating agent and the pin shaft, placing the mixture into a stainless steel tank, placing the stainless steel tank into a vacuum furnace, and carrying out chromium-vanadium co-penetration operation in a nitrogen environment.
S4, preparing
And (3) mixing the penetrant in the step (S2) with the pin shaft in the step (S1) according to a mass ratio of 2:1, uniformly mixing and placing the mixture in a steel tank, placing the steel tank in a vacuum furnace, covering an inner cover, opening the vacuum furnace to pump vacuum, and sleeving a heating cover after the vacuum furnace is determined to have no air leakage.
S5, heating
Heating a vacuum furnace, drying and dewatering at 0-300 ℃ when the vacuum furnace is heated, introducing nitrogen at 500 ℃, controlling the pressure to be 0.03MPa by pressure discharge, and simultaneously maintaining the nitrogen environment.
S6, discharging
After the heat preservation is finished, the temperature in the vacuum furnace is reduced to about 500 ℃, then the heating cover is removed, the cooling cover is sleeved for accelerating cooling, and the temperature is reduced to below 100 ℃ and then the furnace is discharged.
S7, heat preservation
The heat preservation time is 16 hours, and the heat preservation is carried outControlling the temperature at 920 ℃ to generate a seeping layer, wherein the Vickers hardness of the seeping layer is 2292HV 0.05 。
The hard metal layer is further filled outside the composite layer by utilizing the clearance of the hard metal layer through an electroplating process, the hard metal layer effectively supplements and fills up the clearance through a deposition effect, the pin shaft in the step S4 is stored and protected through a sleeve, the nitrogen environment, the reaction pressure and the penetrating agent used in the reaction are ensured to be the same when being heated in the step S5, the heat insulation temperature in the step S7 is controlled between 920 ℃ and 980 ℃, the measurement is carried out through a Vickers hardness tester in the step S7, the outer surface of the product and the wear-resistant material are organized and integrated into a whole through the pretreated penetrating layer to form a compact wear-resistant composite layer, the clearance of the hard metal layer is utilized to further fill up the outside of the composite layer through the electroplating process, the clearance is effectively supplemented and filled up through the deposition effect of the hard metal layer, and the protection equivalent to the protection of the double composite layer and the hard metal layer is equivalent to the protection of the double composite layer and the metal layer, and the service life of the moving pin shaft is obviously prolonged.
Example two
A wear-resistant penetrated layer surface treatment process comprises the following operation steps:
s1, selecting materials
A pin shaft with the diameter of 200mm is selected and made of 40CrNiMo
S2, blending of penetrating agent
The penetrating agent consists of three parts, namely powdered metal particles, ammonium chloride and aluminum oxide, wherein the metal powder is a penetrating element, the ammonium chloride is a catalyst and is used as a bridge for exchanging the penetrating element with an iron element, the aluminum oxide is a filling agent, the environment in a support tank of the penetrating agent controls the flow of molten metal, and the components have the following mass proportions: 20% of vanadium powder, 30% of chromium powder, 49% of aluminum oxide and 1% of ammonium chloride.
S3, blanking
And uniformly mixing the penetrating agent and the pin shaft, then placing the mixture into a stainless steel tank, placing the stainless steel tank into a vacuum furnace, and carrying out chromium-vanadium co-penetration operation in a nitrogen environment.
S4, preparation
And (3) mixing the penetrant in the step (S2) with the pin shaft in the step (S1) according to a mass ratio of 2:1, uniformly mixing and placing the mixture in a steel tank, placing the steel tank in a vacuum furnace, covering an inner cover, opening the vacuum furnace to pump vacuum, and sleeving a heating cover after the vacuum furnace is determined to have no air leakage.
S5, heating
Heating a vacuum furnace, drying and dewatering at 0-300 ℃ when the vacuum furnace is heated, introducing nitrogen at 500 ℃, controlling the pressure to be 0.03MPa by pressure discharge, and simultaneously maintaining the nitrogen environment.
S6, discharging
After the heat preservation is finished, the temperature is reduced to about 500 ℃ along with the temperature in the vacuum furnace, then the heating cover is removed, the cooling cover is sleeved on the heating cover for accelerating the cooling, and the furnace is taken out after the temperature is reduced to below 100 ℃.
S7, heat preservation
The heat preservation time is 16 hours, the heat preservation temperature is controlled at 940 ℃, a seeping layer is generated, and the Vickers hardness of the seeping layer is 2319HV 0.05 。
Through an electroplating process, a hard metal layer is further filled outside the composite layer by utilizing the gap of the hard metal layer, the hard metal layer effectively supplements and fills the gap through a deposition effect, the pin shaft in the step S4 is stored and protected through a sleeve, the nitrogen environment for reaction in a vacuum furnace, the reaction pressure, the penetrating agent component used for reaction and the like are ensured to be the same when being heated in the step S5, the insulation temperature in the step S7 is controlled to be 920-980 ℃, the measurement is carried out through a Vickers hardness tester in the step S7, the outer surface of the product is organized and integrated with a wear-resistant material through a pre-treated penetrating layer to form a compact wear-resistant composite layer, the gap of the hard metal layer is further filled outside the composite layer through the electroplating process, the hard metal layer effectively supplements and fills the gap through the deposition effect, and is equivalent to the protection of a double-composite layer and a metal hard layer, and the service life of the moving pin shaft is obviously prolonged.
EXAMPLE III
A wear-resistant penetrated layer surface treatment process comprises the following operation steps:
s1, selecting materials
Selecting a pin shaft with the diameter of 200mm and made of 40CrNiMo
S2, blending of penetrating agent
The penetrating agent consists of three parts, namely powdered metal particles, ammonium chloride and aluminum oxide, wherein the metal powder is a penetrating element, the ammonium chloride is a catalyst, the ammonium chloride is used as a bridge for exchanging the penetrating element and an iron element, the aluminum oxide is a filling agent, the environment in a supporting tank of the penetrating agent controls the flow of molten metal, and the components have the following mass proportions: 20% of vanadium powder, 30% of chromium powder, 49% of aluminum oxide and 1% of ammonium chloride.
S3, blanking
Uniformly mixing the penetrating agent and the pin shaft, placing the mixture into a stainless steel tank, placing the stainless steel tank into a vacuum furnace, and carrying out chromium-vanadium co-penetration operation in a nitrogen environment.
S4, preparation
And (3) mixing the penetrant in the step (S2) with the pin shaft in the step (S1) according to the mass ratio of 2:1, uniformly mixing and placing the mixture in a steel tank, placing the steel tank in a vacuum furnace, covering an inner cover, opening the vacuum furnace to pump vacuum, and sleeving a heating cover after the vacuum furnace is determined to have no air leakage.
S5, heating
Heating a vacuum furnace, drying and dewatering at 0-300 ℃ when the vacuum furnace is heated, introducing nitrogen at 500 ℃, controlling the pressure to be 0.03MPa by pressure discharge, and simultaneously maintaining the nitrogen environment.
S6, discharging from the furnace
After the heat preservation is finished, the temperature is reduced to about 500 ℃ along with the temperature in the vacuum furnace, then the heating cover is removed, the cooling cover is sleeved on the heating cover for accelerating the cooling, and the furnace is taken out after the temperature is reduced to below 100 ℃.
S7, heat preservation
The heat preservation time is 16 hours, the heat preservation temperature is controlled at 960 ℃, a seeping layer is generated, and the Vickers hardness of the seeping layer is 2571HV 0.05 。
Through an electroplating process, a hard metal layer is further filled outside the composite layer by utilizing the gap of the hard metal layer, the hard metal layer effectively supplements and fills the gap through a deposition effect, a pin shaft in the step S4 is stored and protected through a sleeve, the nitrogen environment for reaction in a vacuum furnace, the reaction pressure, the penetrating agent component used for reaction and the like are ensured to be the same when being heated in the step S5, the insulation temperature in the step S7 is controlled to be 920-980 ℃, the measurement is carried out through a Vickers hardness tester in the step S7, the outer surface of a product is organized and integrated with a wear-resistant material through a preprocessed penetrating layer to form a compact wear-resistant composite layer, the gap of the hard metal layer is utilized to be further filled outside the composite layer through the electroplating process, the hard metal layer effectively supplements and fills the gap through the deposition effect, the protection is equivalent to that the double composite layers and the metal hard layer are additionally added, the service life of the moving pin shaft is obviously prolonged, the production process can be optimized, the production process is beneficial to production, the production organization is more convenient, the yield is improved, the investment is reduced, and the investment is less beneficial to the organization discharge of the organization to form a scale effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The surface treatment process of the wear-resistant infiltrated layer is characterized by comprising the following operation steps of:
s1, selecting materials
Selecting a pin shaft with the diameter of 200mm and made of 40CrNiMo;
s2, blending of penetrating agent
The penetrating agent consists of three parts, namely powdered metal particles, ammonium chloride and aluminum oxide, wherein the metal powder is a penetrating element, the ammonium chloride is a catalyst, the ammonium chloride is used as a bridge for exchanging the penetrating element and an iron element, the aluminum oxide is a filling agent, the environment in a supporting tank of the penetrating agent controls the flow of molten metal, and the components have the following mass proportions: 20% of vanadium powder, 30% of chromium powder, 49% of aluminum oxide and 1% of ammonium chloride;
s3, blanking
Uniformly mixing a penetrating agent and a pin shaft, then placing the mixture into a stainless steel tank, placing the stainless steel tank into a vacuum furnace, and carrying out chromium-vanadium co-penetration operation in a nitrogen environment;
s4, preparing
And (3) mixing the penetrant in the step (S2) with the pin shaft in the step (S1) according to a mass ratio of 2:1, uniformly mixing and placing the mixture in a steel tank, placing the steel tank in a vacuum furnace, covering an inner cover, opening the vacuum furnace to pump vacuum, and sleeving a heating cover after the vacuum furnace is determined to have no air leakage;
s5, heating
Heating a vacuum furnace, wherein the vacuum furnace is dried and dewatered at 0-300 ℃ when being heated, nitrogen is introduced at 500 ℃, the pressure is controlled at 0.03MPa through pressure discharge, and meanwhile, the nitrogen environment is maintained;
s6, discharging
After the heat preservation is finished, cooling the temperature in the vacuum furnace to about 500 ℃, then removing the heating cover, sleeving the cooling cover for accelerated cooling, and discharging the vacuum furnace after the temperature is reduced to below 100 ℃;
s7, heat preservation
The heat preservation time is 16 hours, the heat preservation temperature is controlled at 920 ℃, a metal infiltration layer is generated, and the Vickers hardness of the metal infiltration layer is 2292HV 0.05 。
2. The wear-resistant penetrated layer surface treatment process as claimed in claim 1, wherein: and the pin shaft in the step S4 is stored and protected through a sleeve.
3. The surface treatment process of the wear-resistant penetrated layer as claimed in claim 1, characterized in that: and in the step S5, the nitrogen environment, the reaction pressure, the permeating agent used for the reaction and the like of the reaction in the vacuum furnace are ensured to be the same during heating.
4. The surface treatment process of the wear-resistant penetrated layer as claimed in claim 1, characterized in that: and the heat preservation temperature in the S7 is controlled to be 920-980 ℃.
5. The surface treatment process of the wear-resistant penetrated layer as claimed in claim 1, characterized in that: and in the S7, the measurement is carried out by a Vickers hardness tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794703.0A CN115181931A (en) | 2022-07-07 | 2022-07-07 | Wear-resistant penetrated layer surface treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794703.0A CN115181931A (en) | 2022-07-07 | 2022-07-07 | Wear-resistant penetrated layer surface treatment process |
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| CN202210794703.0A Pending CN115181931A (en) | 2022-07-07 | 2022-07-07 | Wear-resistant penetrated layer surface treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505867A (en) * | 2022-10-25 | 2022-12-23 | 北京酷捷科技有限公司 | Preparation method and application of stainless steel chromium-copper alloy reduced by hydrogen |
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|---|---|---|---|---|
| DE2303756A1 (en) * | 1973-01-26 | 1974-08-15 | Inst Haerterei Technik | PROCESS FOR GENERATING AN EXTREMELY HARD MIXED CARBIDE LAYER ON FERROUS MATERIALS TO INCREASE THE WEAR RESISTANCE |
| DE2506111A1 (en) * | 1974-02-13 | 1975-08-14 | Seikosha Kk | PROCESS FOR CASE HARDENING CARBON STEEL |
| CN105088133A (en) * | 2015-08-28 | 2015-11-25 | 杭州东华链条集团有限公司 | Manufacturing process of high-abrasion-resistance chain |
| CN105112925A (en) * | 2015-08-28 | 2015-12-02 | 杭州东华链条集团有限公司 | High-wear-resistance chain |
| CN107794494A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of solid powder method chromizing technique and diffusion agent formulation |
-
2022
- 2022-07-07 CN CN202210794703.0A patent/CN115181931A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2303756A1 (en) * | 1973-01-26 | 1974-08-15 | Inst Haerterei Technik | PROCESS FOR GENERATING AN EXTREMELY HARD MIXED CARBIDE LAYER ON FERROUS MATERIALS TO INCREASE THE WEAR RESISTANCE |
| DE2506111A1 (en) * | 1974-02-13 | 1975-08-14 | Seikosha Kk | PROCESS FOR CASE HARDENING CARBON STEEL |
| CN105088133A (en) * | 2015-08-28 | 2015-11-25 | 杭州东华链条集团有限公司 | Manufacturing process of high-abrasion-resistance chain |
| CN105112925A (en) * | 2015-08-28 | 2015-12-02 | 杭州东华链条集团有限公司 | High-wear-resistance chain |
| CN107794494A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of solid powder method chromizing technique and diffusion agent formulation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505867A (en) * | 2022-10-25 | 2022-12-23 | 北京酷捷科技有限公司 | Preparation method and application of stainless steel chromium-copper alloy reduced by hydrogen |
| CN115505867B (en) * | 2022-10-25 | 2024-04-05 | 北京酷捷科技有限公司 | Preparation method and application of hydrogen-reduced stainless steel chrome copper alloy |
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