CN111015378A - Amorphous alloy composite component and polishing method thereof - Google Patents
Amorphous alloy composite component and polishing method thereof Download PDFInfo
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- CN111015378A CN111015378A CN201911403123.9A CN201911403123A CN111015378A CN 111015378 A CN111015378 A CN 111015378A CN 201911403123 A CN201911403123 A CN 201911403123A CN 111015378 A CN111015378 A CN 111015378A
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- polishing
- composite member
- amorphous alloy
- grinding
- stainless steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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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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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an amorphous alloy composite component and a polishing method thereof, wherein the polishing method comprises the following steps: placing a stainless steel sheet at the bottom of a fixed die of the die; placing amorphous master alloy in the fixed die of the die, and carrying out die-casting molding to obtain a composite member; and polishing the stainless steel surface of the composite member to obtain a finished product of the composite member. According to the amorphous alloy composite member and the polishing method thereof provided by the invention, the stainless steel sheet is placed in advance during die casting to be die-cast together with the amorphous master alloy to form the composite member, so that the stainless steel surface can be polished by adopting the existing stainless steel polishing method in the subsequent polishing process, the amorphous alloy characteristic is kept, and the defect that the amorphous alloy cannot meet the polishing requirement when being used as an appearance part is avoided.
Description
Technical Field
The invention relates to the technical field of alloy polishing, in particular to an amorphous alloy composite component and a polishing method thereof.
Background
The amorphous alloy is a novel alloy material with long-range disorder and short-range order in a composition yard, and has better mechanical, physical and chemical properties than conventional crystalline metal materials due to the unique microstructure, so that the amorphous alloy is widely favored.
In order to make the precision and surface roughness of the material meet the requirements, the material is usually polished. The existing polishing method mainly adopts mechanical polishing, but the strength and hardness of amorphous alloy are higher, the polishing process adopted by the existing polishing technology is difficult to meet the requirements, and particularly when the amorphous alloy is used as an appearance piece, the amorphous alloy has bad defects due to insufficient polishing, so that the quality of the product is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an amorphous alloy composite component and a polishing method thereof, and solves the problem that the polishing process in the prior art cannot meet the polishing requirement of amorphous alloy.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a polishing method of an amorphous alloy composite member comprises the following steps:
placing a stainless steel sheet at the bottom of a fixed die of the die;
placing amorphous master alloy in the fixed die of the die, and carrying out die-casting molding to obtain a composite member;
and polishing the stainless steel surface of the composite member to obtain a finished product of the composite member.
As one of the optional solutions of the present invention, the steps are: polishing the stainless steel face of the composite member, comprising:
1) opening the coarse: carrying out primary grinding and polishing by adopting a mechanical polishing method;
2) chemical polishing is carried out by adopting rough polishing solution;
3) middle throwing: performing secondary grinding and polishing by adopting a mechanical polishing method;
4) chemical polishing is carried out by adopting middle polishing liquid;
5) fine polishing: carrying out three times of grinding and polishing by adopting a mechanical polishing method;
6) and (4) carrying out chemical polishing by adopting a fine polishing solution.
As one alternative scheme of the invention, in the step 1), a grinding mechanism is adopted to carry out flat grinding at a rotating speed of 80 r/min.
As one alternative scheme of the invention, in the step 3), a grinding mechanism is adopted to carry out flat grinding at a rotating speed of 60 r/min.
As one alternative scheme of the invention, in the step 5), a grinding mechanism is adopted to carry out flat grinding at the rotating speed of 95 r/min.
As one of the alternatives of the present invention,
in the step 2), a suspension liquid formed by adding weak alkaline water-soluble grinding fluid into diamond micropowder is used as the rough polishing solution.
As one alternative of the present invention, in the step 4), a suspension including a weakly alkaline water-soluble grinding fluid and diamond micropowder is used as the middle polishing fluid.
As one alternative of the present invention, in the step 6), a suspension including an alkaline water-soluble grinding fluid and silica is used as the fine polishing fluid.
The invention also provides an amorphous alloy composite component which is manufactured by the polishing method.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an amorphous alloy composite member and a polishing method thereof, wherein a stainless steel sheet is put in advance during die casting to form the composite member together with an amorphous master alloy in a die casting manner, so that the stainless steel surface can be polished by adopting the existing stainless steel polishing method in the subsequent polishing process, the amorphous alloy characteristic is kept, and the defect that the amorphous alloy is not polished to meet the requirement when the amorphous alloy is used as an appearance part is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart of a method of polishing an amorphous alloy composite component according to the present invention;
fig. 2 is a flowchart of a method of step S3 in the polishing method of an amorphous alloy composite component according to the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, the polishing method of an amorphous alloy composite member provided by the present invention includes the following steps:
s1, placing a stainless steel sheet at the bottom of the fixed die of the die;
the stainless steel sheet is placed in the fixed die of the die in advance, so that in the composite component formed by combining the stainless steel sheet and the amorphous alloy, the stainless steel sheet is used as an appearance surface, and the subsequent polishing process acts on the stainless steel surface formed by the stainless steel sheet.
The stainless steel surface is used for polishing instead of the amorphous alloy surface, so that the amorphous alloy surface can be directly polished by a pure polishing method in the prior art, and the defect that the amorphous alloy is not polished in place and is used as an appearance piece is overcome.
S2, placing amorphous master alloy in the fixed die of the die, and carrying out die-casting forming to obtain a composite member;
in the step, the composite component can be formed by directly and jointly die-casting the stainless steel sheet and the amorphous master alloy, and a plurality of nano holes can be formed on one surface of the stainless steel sheet close to the amorphous alloy through electrochemical etching treatment, and the nano holes are blind holes, so that the amorphous master alloy is injected and combined with the stainless steel sheet in the die-casting process, and the combination tightness of the stainless steel sheet and the amorphous alloy is ensured.
And S3, polishing the stainless steel surface of the composite member to obtain a finished product of the composite member.
Referring to fig. 2, the steps specifically include the following steps:
s301, opening coarsely: carrying out primary grinding and polishing by adopting a mechanical polishing method;
the step uses a grinding mechanism to grind and polish the stainless steel surface for the first time in a flat grinding mode.
Specifically, the step adopts a grinding mechanism to carry out flat grinding at the rotating speed of 80 r/min. In addition, in the polishing process of this step, the thickness of the stainless steel sheet needs to be repeatedly confirmed to avoid excessive polishing.
S302, carrying out chemical polishing by using rough polishing solution;
the method comprises the step of adding a suspension consisting of weak alkaline water-soluble grinding fluid and diamond micro powder into the weak alkaline water-soluble grinding fluid to serve as rough polishing fluid.
Specifically, taking the polishing solution in the prior art as an example, the rough polishing solution may be composed of the following components in parts by weight: diamond micro powder: 0.01% -10%; dispersing agent: 0.2% -6%; suspending agent: 0.1% -3%; pH regulator: 0.1% -5%; and (3) bactericide: 0.1% -0.5%; defoaming agent: 0.1% -0.5%; suspension aid: 2% -50%; deionized water: 40 to 80 percent.
Further, the pH regulator is one or a mixture of more of ammonia water, diethanolamine, triethanolamine, dihydroxyethyl ethylenediamine, hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, acetic acid, sodium hydroxide and potassium hydroxide, and is combined according to requirements to ensure that the pH value of the polishing solution is in a range of 7-12.
S303, middle throwing: performing secondary grinding and polishing by adopting a mechanical polishing method;
in the step, a grinding mechanism is adopted to carry out flat grinding at the rotating speed of 60 r/min. Specifically, the polishing mechanism can be used for polishing by using a copper polishing tool so as to further finely polish the stainless steel surface.
And S304, chemically polishing by adopting the middle polishing liquid.
In the step, a suspension liquid comprising weakly alkaline water-soluble grinding liquid and diamond micro powder is used as a middle polishing liquid, the middle polishing liquid can be the same as the rough polishing liquid in the step S302, and copper powder can be further added on the basis of the rough polishing liquid, so that the middle polishing liquid is more matched with the stainless steel sheet.
S305, fine polishing: carrying out three times of grinding and polishing by adopting a mechanical polishing method;
in the step, a grinding mechanism is adopted to carry out flat grinding at the rotating speed of 95 r/min.
And S306, performing chemical polishing by adopting a fine polishing solution.
In this step, a suspension comprising an alkaline water-soluble abrasive liquid and silica is used as a finishing polishing liquid.
Taking the polishing solution in the prior art as an example, the fine polishing solution can be composed of the following components: colloidal silica, potassium hydroxide, potassium bicarbonate, and water, wherein the content of colloidal silica is 2 mass% or more.
Based on the embodiment, the embodiment of the invention also provides an amorphous alloy composite component which is manufactured by the polishing method. The amorphous alloy conforming component has a polished stainless steel surface to replace the amorphous alloy as the appearance surface of a product, thereby avoiding the bad defects caused by the immature grinding technology of the amorphous alloy.
The invention provides an amorphous alloy composite member and a polishing method thereof, wherein a stainless steel sheet is put in advance during die casting to form the composite member together with an amorphous master alloy in a die casting manner, so that the stainless steel surface can be polished by adopting the existing stainless steel polishing method in the subsequent polishing process, the amorphous alloy characteristic is kept, and the defect that the amorphous alloy is not polished to meet the requirement when the amorphous alloy is used as an appearance part is avoided.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A polishing method of an amorphous alloy composite component is characterized by comprising the following steps:
placing a stainless steel sheet at the bottom of a fixed die of the die;
placing amorphous master alloy in the fixed die of the die, and carrying out die-casting molding to obtain a composite member;
and polishing the stainless steel surface of the composite member to obtain a finished product of the composite member.
2. The polishing method of an amorphous alloy composite member according to claim 1, wherein the steps of: polishing the stainless steel face of the composite member, comprising:
1) opening the coarse: carrying out primary grinding and polishing by adopting a mechanical polishing method;
2) chemical polishing is carried out by adopting rough polishing solution;
3) middle throwing: performing secondary grinding and polishing by adopting a mechanical polishing method;
4) chemical polishing is carried out by adopting middle polishing liquid;
5) fine polishing: carrying out three times of grinding and polishing by adopting a mechanical polishing method;
6) and (4) carrying out chemical polishing by adopting a fine polishing solution.
3. The method for polishing an amorphous alloy composite member according to claim 2, wherein in the step 1), flat grinding is performed at a rotation speed of 80r/min by using a grinding mechanism.
4. The method for polishing an amorphous alloy composite member according to claim 2, wherein in the step 3), flat grinding is performed at a rotation speed of 60r/min by using a grinding mechanism.
5. The method for polishing an amorphous alloy composite member according to claim 2, wherein in the step 5), flat grinding is performed at a rotation speed of 95r/min by using a grinding mechanism.
6. The method for polishing an amorphous alloy composite member according to claim 2, wherein in the step 2), a suspension composed of a weakly alkaline water-soluble grinding fluid and diamond micropowder is used as the rough polishing fluid.
7. The polishing method of an amorphous alloy composite member according to claim 2, wherein in the step 4), a suspension comprising a weakly alkaline water-soluble grinding fluid and diamond micropowder is used as the middle polishing fluid.
8. The polishing method of an amorphous alloy composite member according to claim 2, wherein in the step 6), a suspension comprising an alkaline water-soluble abrasive liquid and silicon dioxide is used as the finish polishing liquid.
9. An amorphous alloy composite member produced by the polishing method according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911403123.9A CN111015378A (en) | 2019-12-30 | 2019-12-30 | Amorphous alloy composite component and polishing method thereof |
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| CN201911403123.9A CN111015378A (en) | 2019-12-30 | 2019-12-30 | Amorphous alloy composite component and polishing method thereof |
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| CN111015378A true CN111015378A (en) | 2020-04-17 |
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Citations (6)
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| JPS63231929A (en) * | 1987-03-20 | 1988-09-28 | 株式会社東芝 | Ceramic coating metal |
| CN102430745A (en) * | 2011-08-18 | 2012-05-02 | 比亚迪股份有限公司 | Method for combining amorphous alloy and heterogeneous material and complex |
| CN102529191A (en) * | 2011-12-15 | 2012-07-04 | 比亚迪股份有限公司 | Amorphous alloy product and method for manufacturing same |
| CN102925952A (en) * | 2011-08-11 | 2013-02-13 | 鸿富锦精密工业（深圳）有限公司 | Stainless steel and amorphous alloy complex and its manufacturing method |
| CN102950834A (en) * | 2011-08-18 | 2013-03-06 | 比亚迪股份有限公司 | Insert used in amorphous alloy product, amorphous alloy product, and manufacturing method thereof |
| CN105817597A (en) * | 2015-07-30 | 2016-08-03 | 维沃移动通信有限公司 | Mobile terminal middle frame and preparation method thereof |
-
2019
- 2019-12-30 CN CN201911403123.9A patent/CN111015378A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| JPS63231929A (en) * | 1987-03-20 | 1988-09-28 | 株式会社東芝 | Ceramic coating metal |
| CN102925952A (en) * | 2011-08-11 | 2013-02-13 | 鸿富锦精密工业（深圳）有限公司 | Stainless steel and amorphous alloy complex and its manufacturing method |
| US20130040163A1 (en) * | 2011-08-11 | 2013-02-14 | Hon Hai Precision Industry Co., Ltd. | Stainless steel-and-amorphous alloy composite and method for manufacturing |
| CN102430745A (en) * | 2011-08-18 | 2012-05-02 | 比亚迪股份有限公司 | Method for combining amorphous alloy and heterogeneous material and complex |
| CN102950834A (en) * | 2011-08-18 | 2013-03-06 | 比亚迪股份有限公司 | Insert used in amorphous alloy product, amorphous alloy product, and manufacturing method thereof |
| CN102529191A (en) * | 2011-12-15 | 2012-07-04 | 比亚迪股份有限公司 | Amorphous alloy product and method for manufacturing same |
| CN105817597A (en) * | 2015-07-30 | 2016-08-03 | 维沃移动通信有限公司 | Mobile terminal middle frame and preparation method thereof |
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Application publication date: 20200417 |