CN107739893B - High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof - Google Patents
High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof Download PDFInfo
- Publication number
- CN107739893B CN107739893B CN201710850397.7A CN201710850397A CN107739893B CN 107739893 B CN107739893 B CN 107739893B CN 201710850397 A CN201710850397 A CN 201710850397A CN 107739893 B CN107739893 B CN 107739893B
- Authority
- CN
- China
- Prior art keywords
- high temperature
- temperature alloy
- thin
- finished product
- preparation
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- 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
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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)
- Manufacture And Refinement Of Metals (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of high temperature alloy thin footpath thin-walled capillary pipes and preparation method thereof, belong to metal working technical area.The thin footpath thin-walled capillary tube material is GH4169 high temperature alloy, its formula rate is by mass percentage: Cr 17%-21%, Ni 50%-55%, Mo 2.8%-3.3%, Nb 4.75%-5.50%, Al 0.20%-0.80%, Ti 0.65%-1.15%, impurity element≤0.1%, remaining is Fe；Capillary size is as follows: outer diameter Φ 0.8mm ~ Φ 1.5mm, wall thickness 0.03mm ~ 0.08mm.GH4169 high temperature alloy thin footpath thin-walled capillary pipe in the present invention, wall thickness dimension only have 0.03 ~ 0.08mm, as heat exchange components, are greatly improved heat exchange efficiency.The method combined using metal forming and machining, is breached the bottleneck of male sportsman plastic processing, can further decrease the wall thickness dimension of capillary, and improve the dimensional accuracy of capillary, and the uniform thin footpath thin-walled capillary pipe of performance is obtained.
Description
Technical field
The present invention relates to a kind of high temperature alloy thin footpath thin-walled capillary pipes and preparation method thereof, belong to metalworking technology neck
Domain.
Background technique
GH4169 high temperature alloy is a kind of precipitation hardenable type nickel base superalloy that Al, Ti, Nb strengthen, and alloy is 650
There is high yield strength, tensile strength, toughness, plasticity and fatigue life and creep-resistant property in DEG C temperature range.GH4169
Cooling tube of the high temperature alloy capillary as heat exchanger is widely used in aerospace industry and solar energy, nuclear energy power generation row
Industry.The wall thickness dimension of capillary directly affects the heat transfer efficiency of heat exchanger, and wall thickness is thinner, then heat exchange efficiency is higher.GH4169 high
Temperature alloy belongs to less-deformable alloy, prepares the technique of capillary at present as rolling and drawing, can get the minimum wall thickness (MINI W.) of capillary
For 0.1mm.To obtain the capillary of higher heat exchange efficiency, GH4169 high temperature alloy capillary size and preparation process are aobvious at present
So it is unable to meet demand.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, provides a kind of high temperature alloy thin footpath thin-walled capillary pipe and its system
Preparation Method.
According to technical solution provided by the invention, high temperature alloy thin footpath thin-walled capillary pipe, formula rate is by mass percentage
It is calculated as: Cr 17%-21%, Ni 50%-55%, Mo 2.8%-3.3%, Nb 4.75%-5.50%, Al 0.20%-0.80%, Ti
0.65%-1.15% and impurity element≤0.1%, remaining is Fe.
The impurity includes O, N, S and P, wherein O≤0.0015%, N≤0.005%, S≤0.002%, P≤0.002%.
The capillary outer diameter is Φ 0.8mm ~ Φ 1.2mm, wall thickness 0.03mm ~ 0.08mm.
The preparation method of the high temperature alloy thin footpath thin-walled capillary pipe, steps are as follows: passing through again using after vacuum induction melting
Argon atmosphere electroslag melting GH4169 high temperature alloy, obtains GH4169 high temperature alloy ESR ingot；ESR ingot is moved back through diffusion
Then fire is hot-forged into bar；Machined drilling obtains GH4169 high temperature alloy hollow forging；Through intermediate heat-treatment, multi- pass rolling
And drawing, obtain semi-finished product tubing；It is finally processed again through centerless grinding machine, obtains high-precision, thin footpath thin-walled capillary pipe.
Specific step is as follows:
(1) melting: prepare material, in which: Cr 17%-21%, Ni 50%-55%, Mo 2.8%-3.3%, Nb 4.75%-
5.50%, Al 0.20%-0.80%, Ti 0.65%-1.15%, Fe 18.8-19%；
Using vaccum sensitive stove, melting obtains solution at 1400-1500 DEG C, continues thereafter with refining 10-20min, casting electricity
Pole stick, then through argon atmosphere electroslag remelting, obtain GH4169 high temperature alloy ESR ingot；
(2) it is hot-forged: by GH4169 high temperature alloy ESR ingot diffusion annealing obtained by step (1), being slowly heated to 1180 first
DEG C, 18h is kept the temperature, is then down to 1120 DEG C of forging temperature, hot forging is at bar in 1120-1000 DEG C of temperature range；
(3) drill: the resulting machined drilling of GH4169 high temperature alloy bar of step (2) obtains GH4169 high temperature and closes
Golden hollow forging；
(4) preparation of semi-finished product: GH4169 high temperature alloy hollow forging obtained by step (3) is obtained through multi- pass rolling and drawing processing
Semi-finished product tubing is obtained, in the process when tubing, which adds up deflection, reaches 50%, carries out intermediate heat-treatment, heating temperature 980 ~ 1000
DEG C, 30min ~ 1h is kept the temperature, is then gas-cooled to it.Obtain GH4169 high temperature alloy semi-finished product tubing；
(5) it finishes: GH4169 high temperature alloy semi-finished product tubing obtained by step (4), then processed through centerless grinding machine, so that its
Outer diameter stock removal is 0.02 ~ 0.2mm, obtains finished product GH4169 high temperature alloy thin footpath thin-walled capillary pipe.
Step (1) carries out further melting to it after obtaining GH4169 high temperature alloy ESR ingot, improves alloy purity, and make
Element homogenization；Electroslag uses slag system: CaF2: Al2O3: CaO=70%:15%:15%.
Milling train used by step (4) rolling is processed is LG60/LG30/LD15/LD8 milling train.
In step (4), drawing processing further draws the tubing after rolling by the way of long core print drawing and empty drawing
It pulls out, pipe internal diameter is made to reach the internal diameter of finished product.
By the way of long core print drawing and empty drawing, to the further drawing of tubing after rolling, reach into pipe internal diameter
The internal diameter of product prepares GH4169 high temperature alloy thin footpath thin-walled capillary pipe semi-finished product tubing.To guarantee the dimensional accuracy of finished product, and subtract
The waste of few material, reserving outer diameter stock removal is 0.02 ~ 0.2mm.
Using centerless grinding machine, by the further grinding of semi-finished product tube outer diameter to finished size.Due to capillary size
It is smaller, the support frame of centerless grinding machine, and the fixed capillary by the way of pinch roller need to be increased, prevented in grinding process due to capillary
The bounce of pipe causes wall unevenness.
Beneficial effects of the present invention: the GH4169 high temperature alloy thin footpath thin-walled capillary pipe in the present invention, wall thickness dimension only have
0.03 ~ 0.08mm is greatly improved heat exchange efficiency as heat exchange components.It is combined using metal forming and machining
Method, breach the bottleneck of male sportsman plastic processing, the wall thickness dimension of capillary can be further decreased, and improve
The dimensional accuracy of capillary obtains the uniform thin footpath thin-walled capillary pipe of performance.
Specific embodiment
Embodiment 1
A kind of GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ 0.9*0.05mm, the preparation of capillary include following step
It is rapid:
(1) melting: prepare material, melting obtains solution at 1400 DEG C using vaccum sensitive stove, continues thereafter with refining
20min is poured electrode bar, 120 ~ 130mm of electrode ingot outer diameter Φ.Ingot casting is at being grouped as are as follows: weight percent wt%, Ni
52.24%, Cr 19.58%, Mo 3.08%, Nb 5.08%, Al 0.7%, Ti 1.0%, O 0.0009%, N 0.0038%, S
0.0011%, P 0.0019%；Remaining is Fe.Again through argon atmosphere electroslag remelting, quantity of slag 5Kg, slag system CaF2: Al2O3:
CaO=70%:15%:15% obtains GH4169 high temperature alloy ESR ingot Φ 180mm.
(2) it is hot-forged: by GH4169 high temperature alloy ESR ingot diffusion annealing obtained by step (1), being slowly heated to 1180 first
DEG C, 18h is kept the temperature, is then down to 1120 DEG C of forging temperature, is hot-forged in 1120-1000 DEG C of temperature range straight at Φ 70mm bar
Diameter；
(3) drill: the resulting machined drilling of GH4169 high temperature alloy bar of step (2) obtains Φ 65mm*15mm*
The GH4169 high temperature alloy hollow forging of 300mm；
(4) preparation of semi-finished product: GH4169 high temperature alloy hollow forging obtained by step (3) works as pipe through multi- pass rolling and drawing
Material cumulative deformation is 50%, carries out intermediate heat-treatment, 980 DEG C of heating temperature, keeps the temperature 1h, be then gas-cooled, obtain Φ 1mm*
The semi-finished product tubing of 0.1mm；
(5) it finishes: GH4169 high temperature alloy semi-finished product tubing obtained by step (4), then processed through centerless grinding machine, so that its
Outer diameter stock removal is 0.1mm, obtains finished product GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ 0.9mm*0.05mm.
Milling train used by step (4) is LG60/LG30/LD15/LD8 milling train.Tubing adds up deflection and reaches 50% left side
The right side need to carry out intermediate solution heat treatment, reduce the strength of materials and restore plasticity.Rolling obtains tubing Φ 4mm*0.4mm.
In step (4), by Φ 4mm*0.4mm tubing again by the way of long core print drawing and empty drawing, to the pipe after rolling
The further drawing of material makes pipe internal diameter reach the internal diameter of finished product, i.e. Φ 1mm*0.1mm.
Embodiment 2
A kind of GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ 0.8*0.06mm, the preparation of capillary include following step
It is rapid:
(1) melting: prepare material, melting obtains solution at 1500 DEG C using vaccum sensitive stove, continues thereafter with refining
10min is poured electrode bar, and electrode ingot outer diameter 120 ~ 130mm of Φ, ingot casting is at being grouped as are as follows: weight percent wt%, Ni
52.27%, Cr 19.19%, Mo 3.13%, Nb 5.24%, Al 0.71%, Ti 0.88%, O 0.0008%, N 0.0030%, S
0.0012%, P 0.0016%, remaining is Fe.Again through argon atmosphere electroslag remelting, GH4169 high temperature alloy ESR ingot is obtained
Φ180mm；
(2) it is hot-forged: by GH4169 high temperature alloy ESR ingot diffusion annealing obtained by step (1), being slowly heated to 1180 first
DEG C, 18h is kept the temperature, is then down to 1120 DEG C of forging temperature, hot forging is at diameter of phi 70mm stick in 1120-1000 DEG C of temperature range
Material；
(3) drill: the resulting machined drilling of GH4169 high temperature alloy bar of step (2) obtains Φ 65mm*15mm*
The GH4169 high temperature alloy hollow forging of 300mm；
(4) preparation of semi-finished product: GH4169 high temperature alloy hollow forging obtained by step (3) is through intermediate heat-treatment, heating temperature
1000 DEG C, 30min is kept the temperature, is then gas-cooled；Multi- pass rolling and drawing are then carried out, so that tubing cumulative deformation is 50%, is obtained
Obtain the semi-finished product tubing of Φ 4mm*0.4mm；
(5) it finishes: the GH4169 high temperature alloy semi-finished product tubing of Φ 0.88mm*0.1mm obtained by step (4), then through nothing
The processing of reduction bed obtains finished product GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ so that its outer diameter stock removal is 0.08mm
0.8mm*0.06mm。
Step (1) carries out further melting to it after obtaining GH4169 high temperature alloy ESR ingot, improves alloy purity, and make
Element homogenization；Electroslag uses slag system: CaF2: Al2O3: CaO=70%:15%:15%.
Milling train used by step (4) is LG60/LG30/LD15/LD8 milling train.Tubing adds up deflection and reaches 50% left side
The right side need to carry out intermediate solution heat treatment, reduce the strength of materials and restore plasticity.
In step (4), the tubing of Φ 4mm*0.4mm is by the way of long core print drawing and empty drawing, to the tubing after rolling
Further drawing makes pipe internal diameter reach the internal diameter Φ 0.88mm*0.1mm of finished product.
Embodiment 3
A kind of GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ 0.86*0.03mm, the preparation specific steps of capillary are such as
Under:
(1) melting: prepare material, formula rate with embodiment 2, using vaccum sensitive stove at 1450 DEG C melting obtain it is molten
Liquid continues thereafter with refining 15min, is poured electrode bar, then through argon atmosphere electroslag remelting, obtain GH4169 high temperature alloy electricity
Slag ingot；
(2) it is hot-forged: by GH4169 high temperature alloy ESR ingot diffusion annealing obtained by step (1), being slowly heated to 1180 first
DEG C, 18h is kept the temperature, is then down to 1120 DEG C of forging temperature, hot forging is at bar in 1120-1000 DEG C of temperature range；
(3) drill: the resulting machined drilling of GH4169 high temperature alloy bar of step (2) obtains GH4169 high temperature and closes
Golden hollow forging；
(4) preparation of semi-finished product: GH4169 high temperature alloy hollow forging obtained by step (3) obtains half through multi- pass rolling and drawing
Finished product tubing Φ 1mm*0.1mm need to carry out intermediate heat-treatment, 990 DEG C of heating temperature, protect when tubing cumulative deformation is 50%
Warm 45min, is then gas-cooled.
(5) it finishes: the GH4169 high temperature alloy semi-finished product tubing of Φ 1mm*0.1mm obtained by step (4), then through not being in the mood for
Grinding machine processing obtains finished product GH4169 high temperature alloy thin footpath thin-walled capillary pipe Φ 0.86* so that its outer diameter stock removal is 0.14mm
0.03mm。
Step (1) carries out further melting to it after obtaining GH4169 high temperature alloy ESR ingot, improves alloy purity, and make
Element homogenization；Electroslag uses slag system: CaF2: Al2O3: CaO=70%:15%:15%.
Milling train used by step (4) is LG60/LG30/LD15/LD8 milling train.
In step (4), drawing, to the further drawing of tubing after rolling, is made by the way of long core print drawing and empty drawing
Pipe internal diameter reaches the internal diameter of finished product.
Claims (4)
1. the preparation method of high temperature alloy thin footpath thin-walled capillary pipe, it is characterized in that steps are as follows: using after vacuum induction melting again
Through argon atmosphere electroslag melting GH4169 high temperature alloy, GH4169 high temperature alloy ESR ingot is obtained；By ESR ingot through spreading
Annealing, is then hot-forged into bar；Machined drilling obtains GH4169 high temperature alloy hollow forging；Through intermediate heat-treatment, multi-pass rolls
System and drawing obtain semi-finished product tubing；It is finally processed again through centerless grinding machine, obtains high-precision, thin footpath thin-walled capillary pipe；
Specific step is as follows:
(1) melting: prepare material, in which: Cr 17%-21%, Ni 50%-55%, Mo 2.8%-3.3%, Nb 4.75%-5.50%,
Al 0.20%-0.80%, Ti 0.65%-1.15%, Fe 18.8-19%；
Using vaccum sensitive stove, melting obtains solution at 1400-1500 DEG C, continues thereafter with refining 10-20min, pours injecting electrode
Stick, then through argon atmosphere electroslag remelting, obtain GH4169 high temperature alloy ESR ingot；
(2) it is hot-forged: by GH4169 high temperature alloy ESR ingot diffusion annealing obtained by step (1), being slowly heated to 1180 DEG C first, protect
Then warm 18h is down to 1120 DEG C of forging temperature, hot forging is at bar in 1120-1000 DEG C of temperature range；
(3) drill: it is waste to obtain GH4169 high temperature alloy for the resulting machined drilling of GH4169 high temperature alloy bar of step (2)
Pipe；
(4) preparation of semi-finished product: GH4169 high temperature alloy hollow forging obtained by step (3) obtains half through multi- pass rolling and drawing processing
Finished product tubing carries out intermediate heat-treatment, 980 ~ 1000 DEG C of heating temperature, protects in the process when tubing, which adds up deflection, reaches 50%
Warm 30min ~ 1h, is then gas-cooled to it；
Obtain GH4169 high temperature alloy semi-finished product tubing；
(5) it finishes: GH4169 high temperature alloy semi-finished product tubing obtained by step (4), then processed through centerless grinding machine, so that its outer diameter
Stock removal is 0.02 ~ 0.2mm, obtains finished product GH4169 high temperature alloy thin footpath thin-walled capillary pipe；
High temperature alloy thin footpath thin-walled capillary pipe, formula rate is by mass percentage are as follows: Cr 17%-21%, Ni 50%-55%, Mo
2.8%-3.3%, Nb 4.75%-5.50%, Al 0.20%-0.80%, Ti 0.65%-1.15% and impurity element≤0.1%, remaining is
Fe；
The impurity includes O, N, S and P, wherein O≤0.0015%, N≤0.005%, S≤0.002%, P≤0.002%；
The capillary outer diameter is Φ 0.8mm ~ Φ 1.2mm, wall thickness 0.03mm ~ 0.08mm.
2. the preparation method of high temperature alloy thin footpath thin-walled capillary pipe as described in claim 1, it is characterized in that: step (1) obtains
Further melting is carried out after GH4169 high temperature alloy ESR ingot to it, improves alloy purity, and homogenize element；Electroslag uses
Slag system: CaF2: Al2O3: CaO=70%:15%:15%.
3. the preparation method of high temperature alloy thin footpath thin-walled capillary pipe as described in claim 1, it is characterized in that: step (4) rolling adds
Milling train used by work is LG60/LG30/LD15/LD8 milling train.
4. the preparation method of high temperature alloy thin footpath thin-walled capillary pipe as described in claim 1, it is characterized in that: in step (4), drawing
Processing, to the further drawing of tubing after rolling, makes pipe internal diameter reach finished product by the way of long core print drawing and empty drawing
Internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850397.7A CN107739893B (en) | 2017-09-20 | 2017-09-20 | High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850397.7A CN107739893B (en) | 2017-09-20 | 2017-09-20 | High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107739893A CN107739893A (en) | 2018-02-27 |
| CN107739893B true CN107739893B (en) | 2019-05-21 |
Family
ID=61236010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710850397.7A Active CN107739893B (en) | 2017-09-20 | 2017-09-20 | High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107739893B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587242B (en) * | 2019-10-16 | 2021-05-25 | 西北有色金属研究院 | Processing and preparation method of medical thin-diameter thin-wall cobalt-chromium pipe |
| CN111676393B (en) * | 2020-06-12 | 2022-04-12 | 江苏隆达超合金股份有限公司 | Extrusion cleaning pad and preparation method thereof |
| CN111733346B (en) * | 2020-08-04 | 2021-09-07 | 上海康晟航材科技股份有限公司 | High-temperature alloy for hydrogen fuel cell air compressor bearing and preparation method thereof |
| CN113172106A (en) * | 2021-05-12 | 2021-07-27 | 天津冶金集团天材科技发展有限公司 | Die-overlapping drawing process of nickel-based superalloy small-diameter thin-wall seamless tube |
| CN114086092B (en) * | 2021-11-30 | 2022-09-20 | 成都先进金属材料产业技术研究院股份有限公司 | Method for preparing nickel-based superalloy ultrathin strip |
| CN115652146B (en) * | 2022-11-10 | 2023-08-18 | 天津冶金集团天材科技发展有限公司 | High-temperature alloy capillary tube for gas delivery of heat exchanger of space engine and production process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199852A (en) * | 1982-12-22 | 1983-11-21 | Kobe Steel Ltd | High nickel alloy for acidic oil well |
| CN102492906B (en) * | 2011-12-29 | 2013-04-24 | 钢铁研究总院 | Forging method of high-temperature alloy fine-grained bars |
| CN103316949A (en) * | 2013-06-25 | 2013-09-25 | 浙江国邦钢业有限公司 | Corrosion-resistant alloy tube manufacturing process and corrosion-resistant alloy seamless steel tube |
| CN106180194B (en) * | 2016-07-08 | 2018-08-03 | 江苏隆达超合金航材股份有限公司 | The technique that high temperature alloy bar perforation prepares tubing |
-
2017
- 2017-09-20 CN CN201710850397.7A patent/CN107739893B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107739893A (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107739893B (en) | High temperature alloy thin footpath thin-walled capillary pipe and preparation method thereof | |
| CN108048678B (en) | A kind of high-strength high-plastic high-precision beta-titanium alloy tubing preparation method | |
| CN103894792B (en) | Method for machining forge piece of large-scale single-flange anti-explosion motor main shaft of all-fiber texture | |
| CN105112811A (en) | Austenitic stainless steel jacketing pipe for lead-bismuth fast reactor and preparation method of austenitic stainless steel jacketing pipe | |
| CN104694832B (en) | Martensitic stainless steel for nuclear reactor and preparation method of stainless steel | |
| CN106244927A (en) | A kind of low-density unimach and preparation method thereof | |
| CN104480415A (en) | Processing process of difficult-to-deform high temperature alloy GH141 cold-drawn material | |
| CN101654764B (en) | Iron-nickel based highly elastic alloy, capillary pipe thereof and method for manufacturing capillary pipe | |
| CN112695255B (en) | Preparation method of ferrite martensite steel clad tube | |
| CN103103459A (en) | Large-scale forging and manufacture process wind electricity slewing bearing forging and manufacturing process | |
| CN103194650B (en) | A kind of preparation method of Zr-1Nb alloy | |
| CN102409258B (en) | Structural homogeneity control method of boron-containing high strength hydrogen resistant brittle alloy | |
| CN108160743A (en) | A kind of fuel Stainless Steel Cladding manufacturing process | |
| CN102925835A (en) | High-temperature alloy stress-removing aging process method | |
| CN113061690A (en) | Method for manufacturing pants-type tee joint of primary loop pipeline of fourth-generation nuclear power fast reactor | |
| CN100590210C (en) | Technological process for improving twin boundary amount in gamma' precipitation strengthened type ferrous alloy | |
| CN108165717A (en) | A kind of preparation process of nuclear fuel element FeCrAl tubing | |
| CN107236918A (en) | The preparation method of beta gamma TiAl alloy sheet materials containing tiny lath-shaped γ recrystallized structures | |
| CN102363833A (en) | Method for manufacturing transformation induced plasticity steel seamless tube on line | |
| CN107740002A (en) | A kind of novel control nitrogen austenitic stainless steel and preparation method thereof | |
| CN105112625B (en) | A kind of manufacture method of pressurized-water reactor nuclear power plant shielding impeller of pump forging | |
| CN112553518B (en) | Method for manufacturing iron-nickel-chromium-based corrosion-resistant alloy hot-rolled bar for nuclear power evaporator | |
| CN102383064B (en) | Steel material for valve and preparation method for steel material | |
| CN106756245B (en) | A kind of alloy material and preparation method thereof for nuclear field liquid waste processing tankage | |
| CN106544547B (en) | A kind of nuclear field radioactive liquid waste processing corrosion resistant material and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214105 No.18 Xiangyun Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee after: Jiangsu Longda Super Alloy Co.,Ltd. Address before: 214105 No.18 Xiangyun Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee before: WUXI LONGDA METAL MATERIALS Co.,Ltd. |