CN107693062A - A kind of retractor workbench - Google Patents
A kind of retractor workbench Download PDFInfo
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- CN107693062A CN107693062A CN201710767246.5A CN201710767246A CN107693062A CN 107693062 A CN107693062 A CN 107693062A CN 201710767246 A CN201710767246 A CN 201710767246A CN 107693062 A CN107693062 A CN 107693062A
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- retractor
- bar
- aluminium
- intermediate alloy
- fixed plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0068—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only nitrides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of retractor workbench, belong to field of medical device, including fixed plate（1）, described fixed plate is hollow structure, and centre, which is provided with, is used for operation technique passage, and to place the groove of patient body, fixed plate is provided with four fixed seats for being located at different directions for the lower section of fixed plate（2）, the bar portion of fixed seat is provided through in fixed seat（301）And the hook portion positioned at bar portion end（302）, bar portion can be relatively fixed seat and move forward and backward and pass through fixing button（4）Fixed, fixed plate is connected by horizon bar with vertical bar, and horizon bar is connected with vertical bar by rotating seat（101）, described rotating seat can rotate around the vertical axes of vertical bar, and can adjust vertical height and by the second fixing button（102）Fixed, the bottom of vertical bar is provided with base（6）.
Description
Technical field
The present invention relates to field of medical device, a kind of specifically tractor workbench.
Background technology
At present, clinically when carrying out thoracic cavity open chest surgery to patient, it is necessary to use the hook for surgery operation expanded support wall of the chest, existing hand
Art drag hook is mainly made up of coupler body and torque arm, operate it is cumbersome, waste time and energy, add great work to medical worker
Make difficulty.Existing coupler body insufficient strength simultaneously, is easily bent, influences traction effect.
The content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided a kind of retractor workbench, including fixed plate,
Described fixed plate is hollow structure, and centre, which is provided with, is used for operation technique passage, and the lower section of fixed plate is placement patient body
Groove, fixed plate are provided with four fixed seats for being located at different directions, and bar portion and the position of fixed seat are provided through in fixed seat
Hook portion in bar portion end, bar portion can be relatively fixed seat and move forward and backward and fixed by fixing button, and fixed plate passes through horizon bar
Connected with vertical bar, horizon bar is connected with vertical bar by rotating seat, and described rotating seat can be around the vertical axes of vertical bar
Rotate, and vertical height can be adjusted and fixed by the second fixing button, the bottom of vertical bar is provided with base.
As an improvement, described base is cylindrical type base.
In a preferred approach, hook portion is as follows using nickel aluminide enhancing Cu-base composites preparation method：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 5 ~ 20 minutes, is subsequently added into described alloy gross mass under conditions of being 700 ~ 950 DEG C in smelting temperature
0.01% ~ 2.1% carbon trichloride refines 5 ~ 20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 5 ~ 20 minutes under conditions of 700 ~ 950 DEG C, so
It is applied to afterwards using water cooling ultrasonic head in melting matrix alloy, continual application ultrasonic wave 1 ~ 10 minute；Stand 5 ~ 20
Skimmed after minute, finally casting obtains nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
As an improvement, described fine aluminium be using the purified aluminum after vacuum heat-treating method, purity be at least 99.99% with
On.
As an improvement, the application frequency of ultrasonic wave is 20 ~ 80 KHzs, amplitude is 20 ~ 50 microns.
As an improvement, the weight of aluminium is accounted between 10%-15% in matrix material.
As an improvement, described step is a kind of to add intermediate alloy, described intermediate alloy is aluminum bronze intermediate alloy, aluminium manganese
The raw material of intermediate alloy composition.
As an improvement, described aluminum bronze intermediate alloy aluminium and the mass ratio of copper are 1:1, the matter of aluminium manganese intermediate alloy aluminium and manganese
Amount is than being 1:1.
As an improvement, the weight ratio that intermediate alloy raw material accounts for matrix material is 20%.
As an improvement, described inert gas is helium, one or two kinds of mixtures of argon gas.
As an improvement, described inert gas carries out the pre-heat treatment before addition.
As an improvement, contain nitrogen in described inert gas, and described nitrogen and nickel production nickel oxide, described inertia
Chemical reaction generation nickel oxide occurs for the nickel in the nitrogen and melt in gas, and the nickel oxide produced is dispersed in matrix
In, described nickel oxide is three nickel of nitridation, contains certain ammonia preferably in inert gas in inert gas, specifically
Content volume number in 10%-50%.
Composite technology prepared by the present invention is simple, single sintering cleaning, it is prepared reinforcing copper have good electrical and
Mechanical property.The relative density for the reinforcing copper products that the present invention is prepared is up to 99%, and conductance is up to 95%, and hardness is up to
141HV, tensile strength are up to 403MPa, have very excellent combination property.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of opposite side observation of the present invention；
Marked in figure：1- fixed plates, 101- rotating seats, the fixing buttons of 102- second, 2- fixed seats, 301- bar portions, 302- hook portions, 4-
Fixing button, 5- vertical bars, 6- bases.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific embodiment 1：As shown in Figure 1-2, it is described the invention discloses a kind of retractor workbench, including fixed plate 1
Fixed plate be hollow structure, centre, which is provided with, is used for operation technique passage, the lower section of fixed plate for placement patient body groove,
Fixed plate is provided with four fixed seats 2 for being located at different directions, is provided through the bar portion 301 of fixed seat in fixed seat and is located at
The hook portion 302 of bar portion end, bar portion can be relatively fixed seat and move forward and backward and fixed by fixing button 4, and fixed plate passes through level
Bar connects with vertical bar, and horizon bar connects 101 with vertical bar by rotating seat, and described rotating seat can be around the perpendicular of vertical bar
D-axis rotates, and can adjust vertical height and be fixed by the second fixing button 102, and the bottom of vertical bar is provided with base 6.
Described base is cylindrical type base.
Specific embodiment 2：A kind of in-situ preparation nickel aluminide strengthens Cu-base composites, and preparation method is as follows：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 12 minutes, is subsequently added into described alloy gross mass under conditions of being 1000 DEG C in smelting temperature
0.05% carbon trichloride refines 5 ~ 20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 12 minutes under conditions of 820 DEG C, then using water
Cold ultrasonic head is applied in melting matrix alloy, continual application ultrasonic wave 1 ~ 10 minute；Stand 5 ~ 20 minutes it
After skim, finally casting obtain nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
Described fine aluminium is to be at least more than 99.99% using the purified aluminum after vacuum heat-treating method, purity.Ultrasonic wave
Application frequency be 20-80 KHzs, amplitude be 20 ~ 50 microns.The weight of aluminium accounts for 10% in matrix material.Described step
A kind of rapid addition intermediate alloy, described intermediate alloy are aluminum bronze intermediate alloy, the raw material of aluminium manganese intermediate alloy composition.Described
The mass ratio of aluminum bronze intermediate alloy aluminium and copper is 1:1, the mass ratio of aluminium manganese intermediate alloy aluminium and manganese is 1:1.Intermediate alloy raw material
The weight ratio for accounting for matrix material is 20%.
Described inert gas is helium, one or two kinds of mixtures of argon gas.Inert gas carries out pre- before addition
Heat treatment.Contain nitrogen, described nitrogen and nickel production nickel oxide in described inert gas.
Specific embodiment 3：A kind of in-situ preparation nickel aluminide strengthens Cu-base composites, and preparation method is as follows：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 11 minutes, is subsequently added into the six of described alloy gross mass 1% under conditions of being 800 DEG C in smelting temperature
Chloroethanes refines 5-20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 5 ~ 20 minutes under conditions of 700 ~ 950 DEG C, so
It is applied to afterwards using water cooling ultrasonic head in melting matrix alloy, continual application ultrasonic wave 1 ~ 10 minute；Stand 5 ~ 20
Skimmed after minute, finally casting obtains nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
Described fine aluminium is to be at least more than 99.99% using the purified aluminum after vacuum heat-treating method, purity.Ultrasonic wave
Application frequency be 20 ~ 80 KHzs, amplitude be 20 ~ 50 microns.The weight of aluminium accounts for 15% in matrix material.Described step
A kind of rapid addition intermediate alloy, described intermediate alloy are aluminum bronze intermediate alloy, the raw material of aluminium manganese intermediate alloy composition.Described
The mass ratio of aluminum bronze intermediate alloy aluminium and copper is 1:1, the mass ratio of aluminium manganese intermediate alloy aluminium and manganese is 1:1.Intermediate alloy raw material
The weight ratio for accounting for matrix material is 20%.
Described inert gas is helium, one or two kinds of mixtures of argon gas.Inert gas carries out pre- before addition
Heat treatment.Contain nitrogen, described nitrogen and nickel production nickel oxide in described inert gas.
Specific embodiment 4：A kind of in-situ preparation nickel aluminide strengthens Cu-base composites, and preparation method is as follows：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 15 minutes, is subsequently added into described alloy gross mass 1.5% under conditions of being 800 DEG C in smelting temperature
Carbon trichloride refines 5 ~ 20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 5-20 minutes under conditions of 900 DEG C, then use
Water cooling ultrasonic head is applied in melting matrix alloy, continual application ultrasonic wave 1-20 minutes；Stand 5 ~ 20 minutes
Skim afterwards, finally casting obtains nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
Described fine aluminium is to be at least more than 99.99% using the purified aluminum after vacuum heat-treating method, purity.Ultrasonic wave
Application frequency be 20 ~ 80 KHzs, amplitude be 20 ~ 50 microns.The weight of aluminium accounts for 12% in matrix material.Described step
A kind of rapid addition intermediate alloy, described intermediate alloy are aluminum bronze intermediate alloy, the raw material of aluminium manganese intermediate alloy composition.Described
The mass ratio of aluminum bronze intermediate alloy aluminium and copper is 1:1, the mass ratio of aluminium manganese intermediate alloy aluminium and manganese is 1:1.Intermediate alloy raw material
The weight ratio for accounting for matrix material is 20%.
Described inert gas is helium, one or two kinds of mixtures of argon gas.Inert gas carries out pre- before addition
Heat treatment.Contain nitrogen, described nitrogen and nickel production nickel oxide in described inert gas.
Specific embodiment 5：A kind of in-situ preparation nickel aluminide strengthens Cu-base composites, and preparation method is as follows：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 20 minutes, is subsequently added into described alloy gross mass 0.01% under conditions of being 700 DEG C in smelting temperature
Carbon trichloride refining 5-20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 5 ~ 20 minutes under conditions of 700 ~ 950 DEG C, so
It is applied to afterwards using water cooling ultrasonic head in melting matrix alloy, continual application ultrasonic wave 1 ~ 10 minute；Stand 5 ~ 20
Skimmed after minute, finally casting obtains nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
Described fine aluminium is to be at least more than 99.99% using the purified aluminum after vacuum heat-treating method, purity.Ultrasonic wave
Application frequency be 20 ~ 80 KHzs, amplitude be 20 ~ 50 microns.The weight of aluminium accounts for 15% in matrix material.Described step
A kind of rapid addition intermediate alloy, described intermediate alloy are aluminum bronze intermediate alloy, the raw material of aluminium manganese intermediate alloy composition.Described
The mass ratio of aluminum bronze intermediate alloy aluminium and copper is 1:1, the mass ratio of aluminium manganese intermediate alloy aluminium and manganese is 1:1.Intermediate alloy raw material
The weight ratio for accounting for matrix material is 20%.
Described inert gas is helium, one or two kinds of mixtures of argon gas.Inert gas carries out pre- before addition
Heat treatment.Contain nitrogen, described nitrogen and nickel production nickel oxide in described inert gas.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of retractor workbench, it is characterised in that including fixed plate（1）, described fixed plate is hollow structure, and centre is set
Have and be used for operation technique passage, to place the groove of patient body, fixed plate is provided with four positioned at difference for the lower section of fixed plate
The fixed seat in direction（2）, the bar portion of fixed seat is provided through in fixed seat（301）And the hook portion positioned at bar portion end（302）,
Bar portion can be relatively fixed seat and move forward and backward and pass through fixing button（4）Fixed, fixed plate is connected by horizon bar with vertical bar, water
Flat bar is connected with vertical bar by rotating seat（101）, described rotating seat can rotate around the vertical axes of vertical bar, and can
To adjust vertical height and by the second fixing button（102）Fixed, the bottom of vertical bar is provided with base（6）.
2. retractor workbench according to claim 1, it is characterised in that described base is cylindrical type base.
3. according to the retractor workbench described in claim 1, it is characterised in that described hook portion is strengthened copper-based compound by nickel aluminide
Material is made, and the preparation method of composite is as follows：
Step 1: it is prepared by matrix material, the raw material that described matrix material is made up of fine aluminium, fine copper；
Step 2 weighs nickel powder and mixed successively with absolute ethyl alcohol and propyl alcohol, then mechanical agitation respectively, is then heated to ethanol and third
Alcoholic solution all volatilizees, and obtains nickel powder；
It is placed in Step 3: matrix material in step 1 is put into crucible in melting resistance furnace, while indifferent gas is filled with into stove
Body is protected, and melting 5 ~ 20 minutes, is subsequently added into described alloy gross mass under conditions of being 700 ~ 950 DEG C in smelting temperature
0.01% ~ 2.1% carbon trichloride refines 5 ~ 20 minutes；
Step 4: the nickel powder that addition step 2 obtains in crucible melting 5 ~ 20 minutes under conditions of 700 ~ 950 DEG C, so
It is applied to afterwards using water cooling ultrasonic head in melting matrix alloy, continual application ultrasonic wave 1 ~ 10 minute；Stand 5 ~ 20
Skimmed after minute, finally casting obtains nickel aluminide enhancing Cu-base composites；
Step 5: the composite after above-mentioned processing is subjected to hot extrusion；
Step 6：Hot rolling treatment is carried out more than recrystallization temperature；
Step 7：Alloy after step 6 is subjected to solution treatment.
4. retractor workbench according to claim 3, it is characterised in that described fine aluminium is using vacuum heat side
Purified aluminum after method, purity are at least more than 99.99%.
5. retractor workbench according to claim 4, it is characterised in that the application frequency of ultrasonic wave is 20 ~ 80,000
Hertz, amplitude are 20 ~ 50 microns.
6. retractor workbench according to claim 5, it is characterised in that the weight of aluminium accounts for 10%-15% in matrix material
Between.
7. retractor workbench according to claim 6, it is characterised in that described step is a kind of to add intermediate alloy,
Described intermediate alloy is aluminum bronze intermediate alloy, the raw material of aluminium manganese intermediate alloy composition.
8. retractor workbench according to claim 7, it is characterised in that described aluminum bronze intermediate alloy aluminium and the matter of copper
Amount is than being 1:1, the mass ratio of aluminium manganese intermediate alloy aluminium and manganese is 1:1.
9. retractor workbench according to claim 8, it is characterised in that intermediate alloy raw material accounts for the weight of matrix material
Than for 20%, described inert gas is helium, one or two kinds of mixtures of argon gas, and described inert gas is before addition
Carry out the pre-heat treatment.
10. retractor workbench according to claim 9, it is characterised in that contain nitrogen, institute in described inert gas
Nitrogen and nickel the production nickel oxide stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767246.5A CN107693062A (en) | 2017-08-31 | 2017-08-31 | A kind of retractor workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767246.5A CN107693062A (en) | 2017-08-31 | 2017-08-31 | A kind of retractor workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107693062A true CN107693062A (en) | 2018-02-16 |
Family
ID=61170347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710767246.5A Withdrawn CN107693062A (en) | 2017-08-31 | 2017-08-31 | A kind of retractor workbench |
Country Status (1)
| Country | Link |
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| CN (1) | CN107693062A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202069632U (en) * | 2011-05-14 | 2011-12-14 | 刘文生 | Adjustable abdomen operation retractor |
| CN104561649A (en) * | 2015-02-08 | 2015-04-29 | 江西省首诺铜业有限公司 | Production process of high-strength copper-nickel-silicon alloy |
| CN106916997A (en) * | 2017-04-05 | 2017-07-04 | 浙江大学 | A kind of copper alloy for high-speed railway contact line and preparation method thereof |
-
2017
- 2017-08-31 CN CN201710767246.5A patent/CN107693062A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202069632U (en) * | 2011-05-14 | 2011-12-14 | 刘文生 | Adjustable abdomen operation retractor |
| CN104561649A (en) * | 2015-02-08 | 2015-04-29 | 江西省首诺铜业有限公司 | Production process of high-strength copper-nickel-silicon alloy |
| CN106916997A (en) * | 2017-04-05 | 2017-07-04 | 浙江大学 | A kind of copper alloy for high-speed railway contact line and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陶世平: "Cu-Ni-Al合金相图富Cu端合金的析出相表征", 《金属热处理》 * |
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Application publication date: 20180216 |
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