CN109295348A - A kind of preparation process of high-strength aluminum alloy brake disc - Google Patents
A kind of preparation process of high-strength aluminum alloy brake disc Download PDFInfo
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- CN109295348A CN109295348A CN201811319151.8A CN201811319151A CN109295348A CN 109295348 A CN109295348 A CN 109295348A CN 201811319151 A CN201811319151 A CN 201811319151A CN 109295348 A CN109295348 A CN 109295348A
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- brake disc
- temperature
- aluminium alloy
- extruded bars
- aluminum alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- 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
- C23C8/30—Carbo-nitriding
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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
- C23F17/00—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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
Abstract
The present invention provides a kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows: adding raw materials into melting in smelting furnace is liquid aluminium alloy, is aluminium alloy cast ingot by liquid aluminium alloy founding, aluminium alloy cast ingot is squeezed into solid extruded bars；Solid extruded bars are subjected to carbo-nitriding processing；By carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula；Extruded bars after solution treatment are subjected to artificial aging heat treatment；Extruded bars after timeliness are subjected to fine cut scale and produce brake disc workpiece；High-strength aluminum alloy brake disc is obtained by oxidation processes are carried out in the oxidation treatment liquid in brake disc workpiece immersion treatment trough.Have the advantages that high mechanical strength, wearability are good using aluminium alloy brake disc made of present invention process, the plated film that brake panel surface is formed can increase frictional force and have better acid-alkali-corrosive-resisting, this extends the service life of brake disc and has complied with the light-weighted tendency of the day under the premise of guaranteeing traffic safety.
Description
Technical field
The present invention relates to auto parts and components technical field of producing more particularly to a kind of high-strength aluminum alloy brake discs
Preparation process.
Background technique
Increasingly fierce with world car market competition, major automotive giant is all to high quality, high reliability, weight
Gently, energy conservation, inexpensive direction are developed, and show as lightweight in terms of material, part iron part are replaced with aluminium alloy, to reach automobile
To high quality, the demand for development of low cost.Traditional brake disc is made of cast iron, and aluminum alloy materials are due to its outstanding power
It learns characteristic to be widely applied in many auto parts and components, the existing brake disc made of aluminium alloy has lightweight, tool
There is the characteristics of certain mechanical strength, but have the defects that intensity is not high, not wear-resisting, can not also replace cast iron brake disc completely.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of preparation process of high-strength aluminum alloy brake disc is provided.
The present invention to achieve the above object, using following technical scheme:
A kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium is closed
Golden founding is aluminium alloy cast ingot, and aluminium alloy cast ingot is carried out Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in
Solid extruded bars are squeezed into 125MN forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 200-260 DEG C and pre-oxidize 0.5-2 hours by step 2, then into
Row carbo-nitriding processing, processing time are 1-6 hours；
Step 3, by carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula, quenches system
For 530-540 DEG C at a temperature of keep the temperature 330 minutes；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is in 170-
8 hours are kept the temperature at a temperature of 180 DEG C；
Extruded bars after timeliness are carried out fine cut scale, are then added by rough turn, smart car, finish-milling, drilling operating by step 5
Work goes out brake disc outer profile, then produces brake disc workpiece by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:
Oxidation treatment liquid is made in 1-1.2, will carry out oxidation processes, anode in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
Voltage is set as 460-465V, and cathode voltage is set as 100-102V, electric current 2.4A, 40-50 DEG C of the temperature of oxidation treatment liquid, oxidation
Processing time 40-60 minutes after oxidation processes, can plate the film that a layer thickness is 32-35 μm in brake disc workpiece surface, then
High-strength aluminum alloy brake disc is obtained after brake disc workpiece after plated film is washed with water processing, drying.
Preferably, Homogenization Treatments described in step 1, treatment temperature are 500-550 DEG C, and the processing time is that 1-20 is small
When.
Preferably, each parameter when being squeezed in step 1 are as follows: the heating temperature of mold is 450-500 DEG C, aluminium alloy cast ingot
Heating temperature be 440-480 DEG C, the temperature of extrusion cylinder is 420-460 DEG C, and the extrusion speed of extruder is 0.3-0.6m/ points
Clock.
Preferably, the step of carbo-nitriding is handled in step 2 are as follows: it is 480-520 DEG C that solid extruded bars, which are put into temperature,
Carburizer in, be first passed through protection gas, then be passed through pure C alkane and pure ammonia.
Preferably, the formula of electrolyte described in step 6 are as follows: Na2SiO31.2%, NaOH0.1%,
Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%, C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
The beneficial effects of the present invention are: there is high mechanical strength, resistance to using aluminium alloy brake disc made of present invention process
The good advantage of mill property, the plated film that brake panel surface is formed can increase frictional force and have better acid-alkali-corrosive-resisting, this extension
The service life of brake disc and the light-weighted tendency of the day has been complied under the premise of guaranteeing traffic safety.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
A kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium is closed
Golden founding is aluminium alloy cast ingot, and aluminium alloy cast ingot is carried out Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in
Solid extruded bars are squeezed into 125MN forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 200-260 DEG C and pre-oxidize 0.5-2 hours by step 2, then into
Row carbo-nitriding processing, processing time are 1-6 hours；
Step 3, by carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula, quenches system
For 530-540 DEG C at a temperature of keep the temperature 330 minutes；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is in 170-
8 hours are kept the temperature at a temperature of 180 DEG C；
Extruded bars after timeliness are carried out fine cut scale, are then added by rough turn, smart car, finish-milling, drilling operating by step 5
Work goes out brake disc outer profile, then produces brake disc workpiece by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:
Oxidation treatment liquid is made in 1-1.2, will carry out oxidation processes, anode in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
Voltage is set as 460-465V, and cathode voltage is set as 100-102V, electric current 2.4A, 40-50 DEG C of the temperature of oxidation treatment liquid, oxidation
Processing time 40-60 minutes after oxidation processes, can plate the film that a layer thickness is 32-35 μm in brake disc workpiece surface, then
High-strength aluminum alloy brake disc is obtained after brake disc workpiece after plated film is washed with water processing, drying.
Preferably, Homogenization Treatments described in step 1, treatment temperature are 500-550 DEG C, and the processing time is that 1-20 is small
When.
Preferably, each parameter when being squeezed in step 1 are as follows: the heating temperature of mold is 450-500 DEG C, aluminium alloy cast ingot
Heating temperature be 440-480 DEG C, the temperature of extrusion cylinder is 420-460 DEG C, and the extrusion speed of extruder is 0.3-0.6m/ points
Clock.
Preferably, the step of carbo-nitriding is handled in step 2 are as follows: it is 480-520 DEG C that solid extruded bars, which are put into temperature,
Carburizer in, be first passed through protection gas, then be passed through pure C alkane and pure ammonia.
Preferably, the formula of electrolyte described in step 6 are as follows: Na2SiO31.2%, NaOH0.1%,
Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%, C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
Embodiment one
A kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium is closed
Golden founding is aluminium alloy cast ingot, and aluminium alloy cast ingot is carried out Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in
Solid extruded bars are squeezed into 125MN forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 200 DEG C and pre-oxidize 0.5 hour, then carry out carbon nitrogen by step 2
Permeation processing, processing time are 1 hour；
Step 3, by carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula, quenches system
For 530 DEG C at a temperature of keep the temperature 330 minutes；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is at 170 DEG C
At a temperature of keep the temperature 8 hours；
Extruded bars after timeliness are carried out fine cut scale, are then added by rough turn, smart car, finish-milling, drilling operating by step 5
Work goes out brake disc outer profile, then produces brake disc workpiece by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:
1, oxidation treatment liquid is made, oxidation processes, anode voltage will be carried out in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
It is set as 460V, cathode voltage is set as 100V, electric current 2.4A, 40 DEG C of the temperature of oxidation treatment liquid, and oxidation treatment time 40 minutes,
After oxidation processes, can plate a layer thickness in brake disc workpiece surface is 32 μm of film, then by the brake disc workpiece after plated film
High-strength aluminum alloy brake disc is obtained after washing with water processing, drying.
Preferably, Homogenization Treatments described in step 1, treatment temperature are 500 DEG C, and the processing time is 1 hour.
Preferably, each parameter when being squeezed in step 1 are as follows: the heating temperature of mold is 450 DEG C, and aluminium alloy cast ingot adds
Hot temperature is 440 DEG C, and the temperature of extrusion cylinder is 420 DEG C, and the extrusion speed of extruder is 0.3m/ minutes.
Preferably, the step of carbo-nitriding is handled in step 2 are as follows: solid extruded bars are put into the infiltration that temperature is 480 DEG C
In carbon furnace, it is first passed through protection gas, then is passed through pure C alkane and pure ammonia.
Preferably, the formula of electrolyte described in step 6 are as follows: Na2SiO31.2%, NaOH0.1%,
Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%, C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
Embodiment two
A kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium is closed
Golden founding is aluminium alloy cast ingot, and aluminium alloy cast ingot is carried out Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in
Solid extruded bars are squeezed into 125MN forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 260 DEG C and pre-oxidize 2 hours by step 2, then carry out carbon nitrogen and be total to
Infiltration processing, processing time are 6 hours；
Step 3, by carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula, quenches system
For 540 DEG C at a temperature of keep the temperature 330 minutes；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is at 180 DEG C
At a temperature of keep the temperature 8 hours；
Extruded bars after timeliness are carried out fine cut scale, are then added by rough turn, smart car, finish-milling, drilling operating by step 5
Work goes out brake disc outer profile, then produces brake disc workpiece by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:
1.2, oxidation treatment liquid is made, oxidation processes, anode electricity will be carried out in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
Pressure is set as 465V, and cathode voltage is set as 102V, electric current 2.4A, the temperature 50 C of oxidation treatment liquid, and oxidation treatment time 60 divides
Clock after oxidation processes, can plate the film that a layer thickness is 35 μm in brake disc workpiece surface, then by the brake disc work after plated film
Part obtains high-strength aluminum alloy brake disc after washing with water processing, drying.
Preferably, Homogenization Treatments described in step 1, treatment temperature are 550 DEG C, and the processing time is 20 hours.
Preferably, each parameter when being squeezed in step 1 are as follows: the heating temperature of mold is 500 DEG C, and aluminium alloy cast ingot adds
Hot temperature is 480 DEG C, and the temperature of extrusion cylinder is 460 DEG C, and the extrusion speed of extruder is 0.6m/ minutes.
Preferably, the step of carbo-nitriding is handled in step 2 are as follows: solid extruded bars are put into the infiltration that temperature is 520 DEG C
In carbon furnace, it is first passed through protection gas, then is passed through pure C alkane and pure ammonia.
Preferably, the formula of electrolyte described in step 6 are as follows: Na2SiO31.2%, NaOH0.1%,
Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%, C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
Embodiment three
A kind of preparation process of high-strength aluminum alloy brake disc, the specific steps are as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium is closed
Golden founding is aluminium alloy cast ingot, and aluminium alloy cast ingot is carried out Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in
Solid extruded bars are squeezed into 125MN forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 250 DEG C and pre-oxidize 1 hour by step 2, then carry out carbon nitrogen and be total to
Infiltration processing, processing time are 3 hours；
Step 3, by carbo-nitriding, treated that solid extruded bars carry out the solution treatment of out-line quenching formula, quenches system
For 535 DEG C at a temperature of keep the temperature 330 minutes；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is at 175 DEG C
At a temperature of keep the temperature 8 hours；
Extruded bars after timeliness are carried out fine cut scale, are then added by rough turn, smart car, finish-milling, drilling operating by step 5
Work goes out brake disc outer profile, then produces brake disc workpiece by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:
1.1, oxidation treatment liquid is made, oxidation processes, anode electricity will be carried out in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
Pressure is set as 462V, and cathode voltage is set as 101V, electric current 2.4A, the temperature 45 C of oxidation treatment liquid, and oxidation treatment time 45 divides
Clock after oxidation processes, can plate the film that a layer thickness is 33 μm in brake disc workpiece surface, then by the brake disc work after plated film
Part obtains high-strength aluminum alloy brake disc after washing with water processing, drying.
Preferably, Homogenization Treatments described in step 1, treatment temperature are 520 DEG C, and the processing time is 6 hours.
Preferably, each parameter when being squeezed in step 1 are as follows: the heating temperature of mold is 470 DEG C, and aluminium alloy cast ingot adds
Hot temperature is 450 DEG C, and the temperature of extrusion cylinder is 430 DEG C, and the extrusion speed of extruder is 0.5m/ minutes.
Preferably, the step of carbo-nitriding is handled in step 2 are as follows: solid extruded bars are put into the infiltration that temperature is 490 DEG C
In carbon furnace, it is first passed through protection gas, then is passed through pure C alkane and pure ammonia.
Preferably, the formula of electrolyte described in step 6 are as follows: Na2SiO31.2%, NaOH0.1%,
Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%, C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
The present invention is exemplarily described above in conjunction with specific embodiment, it is clear that the present invention implements not by upper
The limitation of mode is stated, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved straight
It scoops out for other occasions, it is within the scope of the present invention.
Claims (5)
1. a kind of preparation process of high-strength aluminum alloy brake disc, which is characterized in that specific step is as follows:
Step 1, it is liquid aluminium alloy that melting in smelting furnace, which is added, in the various raw materials of aluminium alloy cast ingot, and liquid aluminium alloy is melted
It is cast as aluminium alloy cast ingot, aluminium alloy cast ingot is subjected to Homogenization Treatments, the aluminium alloy cast ingot after Homogenization Treatments is placed in 125MN
Solid extruded bars are squeezed into forward extrusion machine；
Solid extruded bars are put into the environment that temperature is 200-260 DEG C and pre-oxidize 0.5-2 hours, then carry out carbon by step 2
Nitrogen permeation processing, processing time are 1-6 hours；
Step 3, by carbo-nitriding treated solid extruded bars carry out out-line quenching formula solution treatment, quenching system be
330 minutes are kept the temperature at a temperature of 530-540 DEG C；
Extruded bars after solution treatment are carried out artificial aging heat treatment by step 4, and artificial aging system is at 170-180 DEG C
At a temperature of keep the temperature 8 hours；
Extruded bars after timeliness are carried out fine cut scale, are then processed by rough turn, smart car, finish-milling, drilling operating by step 5
Brake disc outer profile, then brake disc workpiece is produced by flour milling polishing, cleaning procedure；
Electrolyte is placed in treatment trough by step 6, and addition water is mixed, and the mixed weight ratio of water and electrolyte is 1:1-
1.2, oxidation treatment liquid is made, oxidation processes, anode electricity will be carried out in the oxidation treatment liquid in brake disc workpiece immersion treatment trough
Pressure is set as 460-465V, and cathode voltage is set as 100-102V, electric current 2.4A, 40-50 DEG C of the temperature of oxidation treatment liquid, at oxidation
Reason time 40-60 minutes after oxidation processes, can plate the film that a layer thickness is 32-35 μm in brake disc workpiece surface, then will
Brake disc workpiece after plated film obtains high-strength aluminum alloy brake disc after washing with water processing, drying.
2. the preparation process of high-strength aluminum alloy brake disc according to claim 1, which is characterized in that described in step 1
Homogenization Treatments, treatment temperature be 500-550 DEG C, processing the time be 1-20 hours.
3. the preparation process of high-strength aluminum alloy brake disc according to claim 1, which is characterized in that squeezed in step 1
When each parameter are as follows: the heating temperature of mold is 450-500 DEG C, and the heating temperature of aluminium alloy cast ingot is 440-480 DEG C, extrusion cylinder
Temperature be 420-460 DEG C, the extrusion speed of extruder is 0.3-0.6m/ minutes.
4. the preparation process of high-strength aluminum alloy brake disc according to claim 1, which is characterized in that carbon nitrogen in step 2
The step of permeation is handled are as follows: solid extruded bars are put into the carburizer that temperature is 480-520 DEG C, are first passed through protection gas, then
It is passed through pure C alkane and pure ammonia.
5. the preparation process of high-strength aluminum alloy brake disc according to claim 1, which is characterized in that described in step 6
Electrolyte formula are as follows: Na2SiO31.2%, NaOH0.1%, Na2P4O70.4%, Na2EDTA0.2%, NaF0.075%,
C6H5O7Na3·2H2O0.1%, H3BO30.2%, remaining is water.
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| CN201811319151.8A CN109295348A (en) | 2018-11-07 | 2018-11-07 | A kind of preparation process of high-strength aluminum alloy brake disc |
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| CN201811319151.8A CN109295348A (en) | 2018-11-07 | 2018-11-07 | A kind of preparation process of high-strength aluminum alloy brake disc |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652688A (en) * | 2019-02-21 | 2019-04-19 | 苏州铭德铝业有限公司 | Production method of 6082 aluminum alloy section |
| CN112126811A (en) * | 2020-09-25 | 2020-12-25 | 长沙而道新能源科技有限公司 | Porcelain formula and production process |
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| JP2001294964A (en) * | 2000-04-11 | 2001-10-26 | Kobe Steel Ltd | Aluminum alloy for brake disk and its producing method |
| CN1804128A (en) * | 2005-11-30 | 2006-07-19 | 重庆长江轴承工业有限公司 | High carbon chromium bearing parts surface chemical heat-treatment process |
| CN104109893A (en) * | 2013-04-17 | 2014-10-22 | 孙德杰 | Brake disc surface-hardening treatment process technology |
| CN106011736A (en) * | 2016-06-17 | 2016-10-12 | 陈曦 | Automotive brake disc and surface modification method thereof |
| CN108127357A (en) * | 2017-12-29 | 2018-06-08 | 重庆全茂合渝科技有限公司 | A kind of motorbike brake disc processing technology |
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| CN109652688A (en) * | 2019-02-21 | 2019-04-19 | 苏州铭德铝业有限公司 | Production method of 6082 aluminum alloy section |
| CN112126811A (en) * | 2020-09-25 | 2020-12-25 | 长沙而道新能源科技有限公司 | Porcelain formula and production process |
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