CN109536792A - A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance - Google Patents
A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance Download PDFInfo
- Publication number
- CN109536792A CN109536792A CN201811245666.8A CN201811245666A CN109536792A CN 109536792 A CN109536792 A CN 109536792A CN 201811245666 A CN201811245666 A CN 201811245666A CN 109536792 A CN109536792 A CN 109536792A
- Authority
- CN
- China
- Prior art keywords
- mobile phone
- card slot
- phone card
- push
- performance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22F1/047—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 of alloys with magnesium as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention belongs to Al-alloy metal processing technique fields, disclose the production technology of a kind of mobile phone card slot and 6061 aluminium alloy of push-button material high-performance, the technique passes through melting and casting, Homogenization Treatments, the milling face of machining, hot rolling, it is cold-rolled to finished product thickness, it is dissolved and is quenched in continuous quenching line, artificial aging processing and etc., obtain high performance 6061 aluminum alloy plate materials, its tensile strength Rm reaches 300MPa or more, on the one hand hardness HV has good machining property up to 90 or more, can be suitble to mobile phone card slot and the CNC of push-button material early period processing；On the other hand there is good anodic oxidation performance; it is oxidable at various bright-coloreds, it is very beautiful, formed on the surface of the material after aoxidizing one layer uniformly, the consistent protective film of color; the hardness and wear resistance for making mobile phone card slot and key greatly improve, and extend the service life of product.
Description
Technical field
The invention belongs to Al-alloy metal processing technique field, it is related to a kind of mobile phone card slot and push-button material high-performance
The production technology of 6061 aluminium alloys.
Background technique
Card slot (such as SIM card support, memory Kato) and key (such as volume key, closing key) its material in conventional mobile phone are mostly
Plastic material is made, and to increase its beautiful and metal-like, then applies one layer of metallic paint on its surface again, but due to its intensity compared with
Low and wearability is poor, easy to damage in use process or fade because of abrasion.In recent years, the mobile phone card made of aluminum alloy materials
It slot and comes into being by key stock, but is mostly but the oxidation effectiveness of 3 line aluminium alloys a bit using 3 line aluminium alloys as the low side material of substrate
It is poor.
Therefore, it is higher to produce a kind of hardness, is hardly damaged, and aoxidize rear surface is uniform, the consistent mobile phone card slot of color and
Push-button material is the current technical problems to be solved of those skilled in the art.
Summary of the invention
The purpose of the present invention is to provide the production works of a kind of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance
Skill, the aluminium alloy of this method production form one layer of uniform, consistent protective film of color on the surface of the material after aoxidizing, make mobile phone card
The hardness and wear resistance of slot and key greatly improve, and extend the service life of product.
To achieve the above object, the invention adopts the following technical scheme:
A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance, comprising the following steps:
Step a: raw material is weighed according to the component of following mass percent: Si 0.55% ~ 0.65%, Fe 0.2%, Cu 0.23% ~
0.28%, Mn≤0.15%, Mg 1.0% ~ 1.15%, Cr 0.18% ~ 0.23%, Zn≤0.1%, Ti 0.02% ~ 0.03%, surplus are
Al；Above-mentioned raw materials are mixed and carry out melting and casting, obtain ingot casting；
Step b: by ingot casting be heated to 550 DEG C ~ 570 DEG C, heat preservation carry out within 8 ~ 12 hours homogenization heat treatment, carry out machine after cooling and add
Work, cutting head, back-end crop mill face；
Step c: by slab hot-rolling at the hot rolling blank of 6mm, finishing temperature is 260 DEG C ~ 320 DEG C；
Hot rolling blank: being cold-rolled to the quenching thickness of 2.0mm, is dissolved, is quenched into continuous quenching line by step d, solid solution
Temperature is 520 DEG C ~ 550 DEG C；
Step e: after quenching, stretch-bending straightening, cleaning；
Step f: carrying out artificial aging processing in aging furnace, and aging temp is 160 DEG C ~ 180 DEG C, keeps the temperature 12 hours；
Step g: stretch-bending straightening, bundling or horizontal shearing piece are packed and stored.
Further, the specific steps of melting and casting described in step a are as follows: melting 5 ~ 8 is small in 700 DEG C ~ 750 DEG C smelting furnaces
Shi Hou enters filtration system and filters after carrying out refining degassing processing into standing furnace；Then at 690 DEG C ~ 730 DEG C using semicontinuous
Casting is cast, and the speed of the casting is 50 ~ 65mm/min.
Further, it needs that grain refiner is added during the refining degassing processing.
Further, ingot casting is heated to 450 DEG C ~ 510 DEG C before hot rolling described in step c, heat preservation is not less than 3 hours.
Further, roll surface roughness is 0.3 ~ 0.4 μm in cold rolling described in step d.
Worth explanation is, since 6061 aluminium alloy later periods are when manufacturing mobile phone card slot and push-button material, Yao Jinhang anodic oxygen
Change, oxidation effectiveness especially appearance whether uniformity be heavily dependent on continuous quenching line key parameter setting
And the advance of equipment.Continuous quenching line is the 1850mm continous way designed by China Non-Ferrous Metals Processing Technology Co., Ltd in the present invention
Aluminum alloy quenching/anneling production line, heating furnace use heated by natural gas, and heating speed is exceedingly fast；Furnace temperature is stablized, and the temperature difference is not in furnace
It is ± 3 DEG C super；It is configured with quenching tank in the exporter of heating furnace, quenching tank provides the working environment of rapid cooling for Aluminum sheets.
Multiple groups nozzle is respectively installed in quenching tank upper and lower.Aluminium strip after heating and keeping the temperature and reached sufficiently solid solution reaches rule
After fixed heat treatment temperature and soaking time, comes out of the stove and carry out water spray quenching in quenching tank, the size of cooling velocity will most
Performance, corrosion resistance and the quenching distortion of aluminium strip are influenced eventually, and the size for controlling each group nozzle exit pressure and nozzle are at a distance from aluminium strip
Etc. parameters all will affect spray quenching uniformity consistency.Unit 5 ~ 12m/min of the speed of service converts into 3 ~ 7min of soaking time,
The pressure of upper and lower group water spray is set as 0.2 ~ 1bar, and shower water is deionized water, specific targets: conductivity≤500 μ s/cm,
PH value 6 ~ 8.5, total hardness≤75mg/L, solid suspension≤50mg/L, water temperature require 20 DEG C ~ 45 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention is improved composition proportion, is improved the structure of alloy, eliminated in product by control alloying component
Internal flaw meets anodic oxidation rear surface quality requirement.
2. the tensile strength Rm for 6061 aluminum alloy plate materials that the present invention processes reaches 300MPa or more, hardness HV up to 90 or more,
On the one hand there is good machining property, the CNC(computer numerical control machine of mobile phone card slot and push-button material early period can be suitble to
Bed) processing；On the other hand there is good anodic oxidation performance, it is oxidable at various bright-coloreds, it is very beautiful, after aoxidizing
One layer of uniform, consistent protective film of color is formed on the surface of the material, and the hardness for making mobile phone card slot and key and wear resistance are significantly
It improves, extends the service life of product, and aluminium material surface is non-conductive after anodic oxidation, shields to circuit.
Specific embodiment
The following examples are intended to illustrate the invention, but is not used to limit the scope of protection of the present invention.Unless otherwise specified, real
Apply the conventional means that technological means used in example is well known to those skilled in the art.
Embodiment one
A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance, comprising the following steps:
Step a: raw material is weighed according to the component of following mass percent: Si 0.55%, Fe 0.2%, Cu 0.23%, Mn 0.1%,
Mg 1.0%, Cr 0.18%, Zn 0.08%, Ti 0.02%, surplus Al；Above-mentioned raw materials are mixed and carry out melting and casting, are cast
Ingot；The specific steps of melting and casting are as follows: in 700 DEG C of smelting furnaces after melting 5 hours, after carrying out refining degassing processing into standing furnace
It is filtered into filtration system, needs that grain refiner is added during refining degassing processing, the grain refiner is aluminium titanium boron wire
(Al-5Ti-1B)；Then it is cast at 690 DEG C using semi-continuous casting method, the speed of casting is 50mm/min.
Step b: by ingot casting be heated to 550 DEG C, heat preservation carry out within 8 hours homogenization heat treatment, be machined out, cut after cooling
Head, back-end crop mill face.
Step c: ingot casting is heated to 450 DEG C, 3 hours is kept the temperature, is rolled into the hot rolling blank of 6mm, finishing temperature 260
℃。
Hot rolling blank: being cold-rolled to the quenching thickness of 2.0mm by step d, and roll surface roughness is 0.3 ~ 0.4 μ in cold rolling
M, reduction ratio per pass are 25 ~ 40%, ROLLING OIL control index of refraction be greater than 90%, 40 DEG C of 2.2 ~ 2.4mm2/s of kinematic viscosity value,
Oil-temperature control is at 35 DEG C ~ 45 DEG C；Enter continuous quenching line later to be dissolved, quenched, solid solubility temperature is 520 DEG C.
Step e: after quenching, stretch-bending straightening, cleaning.
Step f: carrying out artificial aging processing in aging furnace, and aging temp is 160 DEG C, keeps the temperature 12 hours.
Step g: stretch-bending straightening, bundling or horizontal shearing piece are packed and stored.
Embodiment two
A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance, comprising the following steps:
Step a: raw material is weighed according to the component of following mass percent: Si 0.65%, Fe 0.2%, Cu 0.28%, Mn
0.15%, Mg 1.15%, Cr 0.23%, Zn 0.1%, Ti 0.03%, surplus Al；Above-mentioned raw materials are mixed and carry out melting and casting,
Obtain ingot casting；The specific steps of melting and casting are as follows: in 750 DEG C of smelting furnaces after melting 8 hours, carry out refining degasification into standing furnace
Enter filtration system after processing to filter, needs that grain refiner is added during refining degassing processing, the grain refiner is aluminium
Titanium boron wire (Al-5Ti-1B)；Then it is cast at 730 DEG C using semi-continuous casting method, the speed of casting is 65mm/min.
Step b: by ingot casting be heated to 570 DEG C, heat preservation carry out within 12 hours homogenization heat treatment, be machined out after cooling,
Cutting head, back-end crop mill face.
Step c: ingot casting is heated to 510 DEG C, 5 hours is kept the temperature, is rolled into the hot rolling blank of 6mm, finishing temperature 320
℃。
Hot rolling blank: being cold-rolled to the quenching thickness of 2.0mm by step d, and roll surface roughness is 0.3 ~ 0.4 μ in cold rolling
M, reduction ratio per pass are 25 ~ 40%, ROLLING OIL control index of refraction be greater than 90%, 40 DEG C of 2.2 ~ 2.4mm2/s of kinematic viscosity value,
Oil-temperature control is at 35 DEG C ~ 45 DEG C；Enter continuous quenching line later to be dissolved, quenched, solid solubility temperature is 550 DEG C.
Step e: after quenching, stretch-bending straightening, cleaning.
Step f: carrying out artificial aging processing in aging furnace, and aging temp is 180 DEG C, keeps the temperature 12 hours.
Step g: stretch-bending straightening, bundling or horizontal shearing piece are packed and stored.
Embodiment three
A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance, comprising the following steps:
Step a: raw material is weighed according to the component of following mass percent: Si 0.6%, Fe 0.2%, Cu 0.25%, Mn 0.12%,
Mg 1.1%, Cr 0.2%, Zn 0.09%, Ti 0.025%, surplus Al；Above-mentioned raw materials are mixed and carry out melting and casting, are cast
Ingot；The specific steps of melting and casting are as follows: in 720 DEG C of smelting furnaces after melting 5 hours, after carrying out refining degassing processing into standing furnace
It is filtered into filtration system, needs that grain refiner is added during refining degassing processing, the grain refiner is aluminium titanium boron wire
(Al-5Ti-1B)；Then it is cast at 710 DEG C using semi-continuous casting method, the speed of casting is 60mm/min.
Step b: by ingot casting be heated to 550 DEG C, heat preservation carry out within 8 hours homogenization heat treatment, be machined out, cut after cooling
Head, back-end crop mill face.
Step c: ingot casting is heated to 480 DEG C, 4 hours is kept the temperature, is rolled into the hot rolling blank of 6mm, finishing temperature 300
℃。
Hot rolling blank: being cold-rolled to the quenching thickness of 2.0mm by step d, and roll surface roughness is 0.3 ~ 0.4 μ in cold rolling
M, reduction ratio per pass are 25 ~ 40%, ROLLING OIL control index of refraction be greater than 90%, 40 DEG C of 2.2 ~ 2.4mm2/s of kinematic viscosity value,
Oil-temperature control is at 35 DEG C ~ 45 DEG C；Enter continuous quenching line later to be dissolved, quenched, solid solubility temperature is 530 DEG C.
Step e: after quenching, stretch-bending straightening, cleaning.
Step f: carrying out artificial aging processing in aging furnace, and aging temp is 170 DEG C, keeps the temperature 12 hours.
Step g: stretch-bending straightening, bundling or horizontal shearing piece are packed and stored.
The embodiment of the above, only presently preferred embodiments of the present invention, is only used to explain the present invention, not limit
The scope of the present invention processed to those of ordinary skill in the art certainly can be according to skill disclosed in this specification
Art content makes other embodiments easily by way of replacing or changing, therefore all made in the principle of the present invention
Changes and improvements etc., should be included in scope of the present invention patent.
Claims (5)
1. the production technology of a kind of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance, which is characterized in that including following
Step:
Step a: raw material is weighed according to the component of following mass percent: Si 0.55% ~ 0.65%, Fe 0.2%, Cu 0.23% ~
0.28%, Mn≤0.15%, Mg 1.0% ~ 1.15%, Cr 0.18% ~ 0.23%, Zn≤0.1%, Ti 0.02% ~ 0.03%, surplus are
Al；Above-mentioned raw materials are mixed and carry out melting and casting, obtain ingot casting；
Step b: by ingot casting be heated to 550 DEG C ~ 570 DEG C, heat preservation carry out within 8 ~ 12 hours homogenization heat treatment, carry out machine after cooling and add
Work, cutting head, back-end crop mill face；
Step c: by slab hot-rolling at the hot rolling blank of 6mm, finishing temperature is 260 DEG C ~ 320 DEG C；
Hot rolling blank: being cold-rolled to the quenching thickness of 2.0mm, is dissolved, is quenched into continuous quenching line by step d, solid solution
Temperature is 520 DEG C ~ 550 DEG C；
Step e: after quenching, stretch-bending straightening, cleaning；
Step f: carrying out artificial aging processing in aging furnace, and aging temp is 160 DEG C ~ 180 DEG C, keeps the temperature 12 hours；
Step g: stretch-bending straightening, bundling or horizontal shearing piece are packed and stored.
2. the production technology of a kind of mobile phone card slot according to claim 1 and push-button material 6061 aluminium alloy of high-performance,
It is characterized in that, the specific steps of melting and casting described in step a are as follows: in 700 DEG C ~ 750 DEG C smelting furnaces after melting 5 ~ 8 hours,
Enter filtration system after carrying out refining degassing processing into standing furnace to filter；Then semi-continuous casting is used at 690 DEG C ~ 730 DEG C
Method is cast, and the speed of the casting is 50 ~ 65mm/min.
3. the production technology of a kind of mobile phone card slot according to claim 2 and push-button material 6061 aluminium alloy of high-performance,
It is characterized in that, needing that grain refiner is added during the refining degassing processing.
4. the production technology of a kind of mobile phone card slot according to claim 1 and push-button material 6061 aluminium alloy of high-performance,
It is characterized in that, ingot casting is heated to 450 DEG C ~ 510 DEG C before hot rolling described in step c, heat preservation is not less than 3 hours.
5. the production technology of a kind of mobile phone card slot according to claim 1 and push-button material 6061 aluminium alloy of high-performance,
It is characterized in that, roll surface roughness is 0.3 ~ 0.4 μm in cold rolling described in step d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245666.8A CN109536792A (en) | 2018-10-24 | 2018-10-24 | A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245666.8A CN109536792A (en) | 2018-10-24 | 2018-10-24 | A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109536792A true CN109536792A (en) | 2019-03-29 |
Family
ID=65845186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245666.8A Pending CN109536792A (en) | 2018-10-24 | 2018-10-24 | A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109536792A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714147A (en) * | 2019-11-05 | 2020-01-21 | 郑州明泰实业有限公司 | 6082 aluminum alloy plate for aviation and production process thereof |
| CN110724864A (en) * | 2019-11-27 | 2020-01-24 | 郑州明泰实业有限公司 | 6M61 aluminum alloy base material for 5G filter cover plate and preparation process thereof |
| CN113913654A (en) * | 2021-10-28 | 2022-01-11 | 河南明晟新材料科技有限公司 | Preparation method of 6-series aluminum plate for battery pack lower shell of electric automobile |
| CN115747535A (en) * | 2022-09-07 | 2023-03-07 | 河南明晟新材料科技有限公司 | Manufacturing method for improving edge covering performance of 6016 automobile stamping plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149092A (en) * | 2017-12-29 | 2018-06-12 | 西南铝业（集团）有限责任公司 | A kind of production method of the high surface mobile phone Al-alloy casing of 6 system and aluminium alloy sheet |
| CN108425046A (en) * | 2018-03-28 | 2018-08-21 | 广西南南铝加工有限公司 | Anodic oxidation aluminium alloy and preparation method thereof |
-
2018
- 2018-10-24 CN CN201811245666.8A patent/CN109536792A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149092A (en) * | 2017-12-29 | 2018-06-12 | 西南铝业（集团）有限责任公司 | A kind of production method of the high surface mobile phone Al-alloy casing of 6 system and aluminium alloy sheet |
| CN108425046A (en) * | 2018-03-28 | 2018-08-21 | 广西南南铝加工有限公司 | Anodic oxidation aluminium alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王丽娟等: "《变形铝合金熔炼与铸造》", 30 September 2010, 中南大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714147A (en) * | 2019-11-05 | 2020-01-21 | 郑州明泰实业有限公司 | 6082 aluminum alloy plate for aviation and production process thereof |
| CN110724864A (en) * | 2019-11-27 | 2020-01-24 | 郑州明泰实业有限公司 | 6M61 aluminum alloy base material for 5G filter cover plate and preparation process thereof |
| CN110724864B (en) * | 2019-11-27 | 2021-03-16 | 郑州明泰实业有限公司 | 6M61 aluminum alloy base material for 5G filter cover plate and preparation process thereof |
| CN113913654A (en) * | 2021-10-28 | 2022-01-11 | 河南明晟新材料科技有限公司 | Preparation method of 6-series aluminum plate for battery pack lower shell of electric automobile |
| CN115747535A (en) * | 2022-09-07 | 2023-03-07 | 河南明晟新材料科技有限公司 | Manufacturing method for improving edge covering performance of 6016 automobile stamping plate |
| CN115747535B (en) * | 2022-09-07 | 2023-10-03 | 河南明晟新材料科技有限公司 | Manufacturing method for improving edge covering performance of 6016 automobile stamping plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104775060B (en) | A kind of production of aluminum alloy continuous casting tandem rolling base and heat treatment method | |
| CN109536792A (en) | A kind of production technology of mobile phone card slot and push-button material 6061 aluminium alloy of high-performance | |
| CN102658452B (en) | Processing method of copper strip used for copper steel composites | |
| CN101481764B (en) | Aluminum alloy rolled plate and producing method thereof | |
| CN112746204B (en) | Aluminum alloy plate and preparation method thereof | |
| CN107805746B (en) | A kind of 5005H34 aluminum alloy plate materials and its production method | |
| CN107475583A (en) | Plate aluminium alloy strips and its manufacture method in a kind of high intensity mobile phone | |
| CN106086532A (en) | A kind of capacitor case aluminium alloy strips and preparation method thereof | |
| CN109972001A (en) | A kind of capacitor case 1100-O state aluminium alloy strips and its production method | |
| CN103045906A (en) | Process method of producing high-grade TC4 alloy hot rolled plate with high material-obtaining rate and low cost | |
| CN111041327A (en) | Production method of cold-rolled steel strip with yield strength below 210MPa | |
| CN113564396B (en) | Preparation method of aluminum alloy strip and aluminum alloy strip | |
| CN109468561B (en) | Preparation method of GH3625 alloy strip | |
| CN108425046A (en) | Anodic oxidation aluminium alloy and preparation method thereof | |
| CN109628803B (en) | Aluminum alloy checkered plate in 4017-H2X state and preparation method thereof | |
| CN108149092A (en) | A kind of production method of the high surface mobile phone Al-alloy casing of 6 system and aluminium alloy sheet | |
| CN108754193A (en) | A kind of high-strength corrosion-resisting collecting pipe material and preparation method thereof | |
| CN101851707A (en) | Manufacturing method of 1060P alloy printing plate-based blank | |
| CN107716885A (en) | A kind of copper alloy with high strength and high conductivity band short-flow production method | |
| CN108588499A (en) | A kind of printing plate-based aluminum strip of CTP and its preparation process | |
| CN110093536A (en) | A kind of battery guide plate 6101-T63 state aluminium alloy coiled material and preparation method thereof | |
| CN108220648A (en) | It is a kind of for the founding of high surface aluminium alloy sheet of mobile phone Al-alloy casing and the preparation method of aluminium alloy sheet | |
| CN109468505B (en) | 6061-H2X state aluminum alloy checkered plate and preparation method thereof | |
| CN105543518B (en) | A kind of production method of 5182 aluminium alloy draw ring material base material | |
| CN113699401A (en) | Preparation method of high-strength high-bending copper-nickel-silicon alloy strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |