CN110000327A - The manufacturing process of hot ring is hidden in nuclear steam turbine - Google Patents
The manufacturing process of hot ring is hidden in nuclear steam turbine Download PDFInfo
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- CN110000327A CN110000327A CN201910183273.7A CN201910183273A CN110000327A CN 110000327 A CN110000327 A CN 110000327A CN 201910183273 A CN201910183273 A CN 201910183273A CN 110000327 A CN110000327 A CN 110000327A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses the manufacturing process for hiding hot ring in nuclear steam turbine, processing step is as follows: preparing heating → base → rolling ring → cooling after forged → rough turn → UT flaw detection → solution heat treatment → rough turn → UT flaw detection → smart car before forging forging stock → blanking → forging.The manufacturing process that hot ring is hidden in above-mentioned nuclear steam turbine overcomes traditional forging technology difficult point, improve ring product quality, and raw material 10%~15% can be saved, it is energy saving, improve production efficiency, after heat treatment performance meets customer requirement, and mechanical property can reach: tensile strength >=520Mpa, yield strength >=205Mpa, elongation percentage >=40%, and stretching test method is executed referring to 47010 pertinent regulations of NB/T；Forging tissue grain size can reach 4.0 grades or more referring to 6394 assessment method of GB/T, autstenitic grain size rank.
Description
Technical field
The present invention relates to rings to forge field, and in particular to the manufacturing process of hot ring is hidden in nuclear steam turbine.
Background technique
The working environment as locating for nuclear steam turbine screening hotswage part is severe, is subjected to the more of high temperature and pressure high corrosion medium
Recast is used, to the more demanding of forging.06Cr25Ni20 stainless steel be austenitic chromium nickel stainless steel have good inoxidizability,
Corrosion resistance, because of the chromium and nickel of higher percent so that possess much better creep strength, at high temperature can continuous operation, tool
There is good heat-resisting quantity.Because nickel (Ni), chromium (Cr) content are high, there is good oxidation, corrosion-resistant, acid and alkali-resistance, heat-resisting quantity
Energy.Therefore hot ring is hidden using the nuclear steam turbine of 06Cr25Ni20 manufacture to have a vast market foreground.
But 06Cr25Ni20 high-temp plastic is poor, and resistance of deformation is very big, and it is easy to crack in forging process, and easily generate coarse-grain
This problem can not be solved perfectly in phenomenon, existing forging technology level, and existing traditional 06Cr25Ni20 hides the big type ring forging of hot ring
Part forging method mainly uses free forging.Since its forging temperature section is relatively narrow in forging process, it is existing to be easy to produce cracking
As, and once crack, gently then stop forging, continues to produce after the cutting of workpiece cracking unit removes, it is time-consuming and laborious；It is heavy then cause entire
Workpiece is scrapped.So existing forging technology forging surplus is larger, and it is also easy to produce coarse-grain phenomenon, not only wastes raw material, consumption energy
Source, waste of time, production efficiency are low, and a large amount of following process, cause performance uneven.
Summary of the invention
The technical problems to be solved by the present invention are: will provide it is a kind of can manufacture high-performance, part size be φ 2910 ±
The manufacturing process of hot ring is hidden in the nuclear steam turbine of 10 × φ, 2735 ± 10 × 140 ± 10mm.
To solve the above-mentioned problems, the technical scheme adopted by the invention is as follows: the manufacture work of hot ring is hidden in nuclear steam turbine
Skill, it is characterised in that: processing step is as follows: before preparation forging forging stock → blanking → forging after heating → base → rolling ring → forging
Cooling → rough turn → UT flaw detection → solution heat treatment → rough turn → UT flaw detection → smart car；
(1) prepare in forging forging stock process: grade of steel of the buying after electric furnace smelting and electroslag remelting is 06Cr25Ni20's
ESR ingot, the φ 500 that forging is made in ESR ingot after pulling, peeling forge stick, and the chemical component requirement for forging stick is as follows: C :≤
0.08%, Mn :≤2%, Si :≤1.5%, P :≤0.035%, S :≤0.02 %, Cr:24~26%, Ni:19~22%, Mo :≤
0.5%, Cu :≤0.5%, surplus Fe；
(2) in blanking procedure: the size of blank obtained by blanking are as follows: φ 500 × (1025 ± 10) mm；
(3) before forging in heating process: blank obtained by blanking is placed in heating furnace middle position when shove charge, surrounding place carbon steel or
Person's steel alloy prevents direct flame contact bar from causing serious peroxidating, element dilution and grain coarsening phenomenon, while in blank
Surface layer overlay asbestos protect blank not sprayed directly by flame；In-furnace temperature≤100 DEG C when blank shove charge, shove charge are complete
It is heated at rear heating furnace, so that in-furnace temperature keeps the temperature 3~4h after being warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h,
Heating is then proceeded to so that in-furnace temperature keeps the temperature 1~2h after being warming up to 1110 DEG C ± 10 DEG C with the rate of≤150 DEG C/h；
(4) in preforming: 4-1. is upset to φ 750 × (443 ± 10) mm by blank first, and initial forging temperature is 1055 ± 3 DEG C；
Then blank is pulled out to φ 690 × (614 ± 10) mm, then by blank pressure height to 556 ± 10mm, final forging temperature 882
±3℃；Then blank melts down 20 ± 3min of heat preservation；4-2. uses two 200 formed punches of φ from blank upper surface and lower end blank
Face to blind hole in a state of excitement, afterwards turns over blank and outer circle is gently pressed to take out two φ 200mm formed punches, initial forging temperature is 998 ± 3 DEG C simultaneously；
Then two φ 250mm formed punches are changed while liquidating and reaming is carried out to two blind holes having rushed, blank is afterwards turned over and gently presses outer circle
Take out two φ 250mm formed punches, when φ 250mm formed punch punching, each volume under pressure was 2~3cm, and initial forging temperature is 970 ± 3 DEG C,
Final forging temperature is 850 ± 3 DEG C；Then blank melts down 20 ± 3min of heat preservation；Blank height is depressed into 472 ± 10mm by 4-3., forging of beginning
Temperature is 1025 ± 3 DEG C；Then it changes φ 350mm formed punch and rushes through-hole to blind hole has been rushed, initial forging temperature is 994 ± 3 DEG C；
(5) roll in ring process: through-hole is extended to φ 500mm by Ring Rolling Machine on 5-1. blank, and initial forging temperature is 963 ± 3 DEG C；So
Blank height is depressed into 446 ± 10mm afterwards, terminal temperature is 860 ± 3 DEG C；Then blank melts down 20 ± 3min of heat preservation；5-2. will
Blank height is depressed into 346 ± 10mm, and initial forging temperature is 1077 ± 3 DEG C, and final forging temperature is 900 ± 3 DEG C；Then blank melts down heat preservation
20±3min；It is 170 ± 10mm that one fire of Ring Rolling Machine, which is rolled to ring height, on 5-3. blank, and initial forging temperature is 1107 ± 3 DEG C, finish-forging
Temperature is 900 ± 3 DEG C；
(6) in cooling after forged process: ring should water cooling, water temperature be controlled at 15~25 DEG C immediately within 3min after rolling ring；
(7) in solution heat treatment process: in-furnace temperature≤200 DEG C when ring shove charge, heating furnace is heated after the completion of shove charge, is made
In-furnace temperature be warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h after keep the temperature 2.5~3.5h, then proceed to heating so that
In-furnace temperature keeps the temperature 1~2h after being warming up to 1080 DEG C ± 10 DEG C with the heating rate not less than 300 DEG C；Then ring is come out of the stove progress
Water cooling, water temperature are controlled at 15~25 DEG C.
Further, the manufacturing process of hot ring is hidden in nuclear steam turbine above-mentioned, in which: the chemical component for forging stick requires such as
Under: C:0.04~0.08%, Mn:1.5~2%, Mo:0.3~0.5%.
Further, the manufacturing process of hot ring is hidden in nuclear steam turbine above-mentioned, in which: during the rolling ring of 5-3 step,
Ring temperature can significantly rise, and should not stop watering reduction ring temperature prevents crystal grain sharply swell.
Advantages of the present invention are as follows: the manufacturing process that hot ring is hidden in nuclear steam turbine of the present invention overcomes traditional forging
Technological difficulties improve ring product quality, and can save raw material 10%~15%, energy saving, improve production efficiency, warp
Performance meets customer requirement after heat treatment, and mechanical property can reach: tensile strength >=520Mpa, is prolonged at yield strength >=205Mpa
Rate >=40% is stretched, stretching test method is executed referring to 47010 pertinent regulations of NB/T；Forging tissue grain size is referring to GB/T 6394
Assessment method, autstenitic grain size rank can reach 4.0 grades or more.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
The part size of the present embodiment hot ring of screening to be manufactured is 2918 × φ of φ, 2740 × 145mm.
The manufacturing process of hot ring is hidden in nuclear steam turbine, processing step is as follows: preparing forging forging stock → blanking → forging
Preceding heating → base → rolling ring → cooling after forged → rough turn → UT flaw detection → solution heat treatment → rough turn → UT flaw detection → smart car；
(1) prepare in forging forging stock process: grade of steel of the buying after electric furnace smelting and electroslag remelting is 06Cr25Ni20's
ESR ingot, the φ 500 that forging is made in ESR ingot after pulling, peeling forge stick, and the chemical component requirement for forging stick is as follows: C:
0.04~0.08%, Mn:1.5~2%, Si :≤1.5%, P :≤0.035%, S :≤0.02 %, Cr:24~26%, Ni:19~
22%, Mo:0.3~0.5%, Cu :≤0.5%, surplus Fe；Raw material using " electric furnace smelting+electroslag remelting " smelting technique and
After subsequent forging stick rolling technique, degree of purity, the consistency of raw material can be improved, ingot cracking is solved the problems, such as, is effectively reduced into
This；
(2) in blanking procedure: the size of blank obtained by blanking are as follows: 500 × 1032mm of φ；
(3) before forging in heating process: blank obtained by blanking being placed in heating furnace middle position when shove charge, surrounding places alloy
Steel prevents direct flame contact bar from causing serious peroxidating, element dilution and grain coarsening phenomenon, while on the surface of blank
Layer overlay asbestos protect blank not sprayed directly by flame；In-furnace temperature≤100 DEG C when blank shove charge add after the completion of shove charge
Hot stove is heated so that in-furnace temperature keeps the temperature 3.5h after being warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h, then after
Continuous heating is so that in-furnace temperature keeps the temperature 1.5h after being warming up to 1110 DEG C ± 10 DEG C with the rate of≤150 DEG C/h；It is forged using circulating type
Heating process is made, direct flame contact blank is avoided, effectively prevent hot-spot even burning, node temperature control guarantees each link
Preform heating time is rationally effective, prevents crystal grain excessive；
(4) in preforming: 4-1. is upset to 750 × 450mm of φ by blank first, and initial forging temperature is 1055 ± 3 DEG C；Then will
Blank is pulled out to 690 × 620mm of φ, and then by blank pressure height to 560mm, final forging temperature is 882 ± 3 DEG C；Then blank returns
Furnace keeps the temperature 20min, and holding temperature is 1110 DEG C ± 10 DEG C；4-2. to blank using two 200 formed punches of φ from blank upper surface and
Lower end surface to blind hole in a state of excitement, afterwards turns over blank and outer circle is gently pressed to take out two φ 200mm formed punches, initial forging temperature is 998 ± 3 simultaneously
℃；Then two φ 250mm formed punches are changed while liquidating and reaming is carried out to the blind hole rushed, blank is afterwards turned over and gently outer circle is pressed to take
Two φ 250mm formed punches out, when φ 250mm formed punch punching, each volume under pressure was 2~3cm, this process volume under pressure must control,
Excessive volume under pressure will will lead to blank inner hole cracking, and after the completion of reaming, overturning blank gently presses outer circle to take out φ 250mm punching
Head, initial forging temperature are 970 ± 3 DEG C, and final forging temperature is 850 ± 3 DEG C；Then blank melts down heat preservation 20min, holding temperature 1110
℃±10℃；Blank height is depressed into 480mm by 4-3., and initial forging temperature is 1025 ± 3 DEG C；Then φ 350mm formed punch is changed to having rushed
Blind hole rushes through-hole, and initial forging temperature is 994 ± 3 DEG C；Press base forging ratio is greater than 6, keeps tissue finer and close；It is rushed first using relay
Pre-punched hole finally just rushes through-hole with flinging in reaming, can prevent blank when punching from cracking in this way；
(5) roll in ring process: through-hole is extended to φ 500mm by Ring Rolling Machine on 5-1. blank, and initial forging temperature is 963 ± 3 DEG C；So
Blank height is depressed into 450mm afterwards, terminal temperature is 860 ± 3 DEG C；Then blank melts down heat preservation 20min, holding temperature 1110
℃±10℃；Blank height is depressed into 350mm by 5-2., and initial forging temperature is 1077 ± 3 DEG C, and final forging temperature is 900 ± 3 DEG C, blank
Excessive height will will affect rolling ring quality, increase and roll over ring difficulty；Then blank melts down heat preservation 20min, and holding temperature is 1110 DEG C
±10℃；One fire of Ring Rolling Machine is rolled to ring having a size of φ 2950 × φ, 2708 × 177mm, initial forging temperature 1107 on 5-3. blank
± 3 DEG C, final forging temperature is 900 ± 3 DEG C, and during rolling over ring, ring temperature can be significantly risen, and should not stop watering reduces ring temperature
Prevent crystal grain sharply swell；One igneous type of Ring Rolling Machine, effectively broken field trash and refinement crystal grain, save working hour, reduce energy consumption；
(6) in cooling after forged process: roll over after ring ring should within 3min water cooling immediately, because cooling is slower inside forging, if not
Rapid cooling also results in coarse grains phenomenon, and water temperature is controlled at 15~25 DEG C；
(7) rough turn removal ring surface defect；
(8) UT flaw detection is carried out to ring；
(9) in solution heat treatment process: in-furnace temperature≤200 DEG C when ring shove charge, heating furnace is heated after the completion of shove charge, is made
It obtains after in-furnace temperature is warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h and keeps the temperature 3h, then proceed to heating so that in-furnace temperature
1.5h is kept the temperature after being warming up to 1080 DEG C ± 10 DEG C with the heating rate not less than 300 DEG C；Then ring, which is come out of the stove, carries out water cooling, water temperature
Control is at 15~25 DEG C；
(10) rough turn removal ring surface defect；
(11) UT flaw detection is carried out to ring again；
(12) by ring smart car to having a size of 2918 × φ of φ, 2740 × 145mm.
Claims (3)
1. hiding the manufacturing process of hot ring in nuclear steam turbine, it is characterised in that: processing step is as follows: prepare forging with forging stock → under
Heating → base → rolling ring → cooling after forged → rough turn → UT flaw detection → solution heat treatment → rough turn → UT flaw detection before material → forging
→ smart car；
(1) prepare in forging forging stock process: grade of steel of the buying after electric furnace smelting and electroslag remelting is 06Cr25Ni20's
ESR ingot, the φ 500 that forging is made in ESR ingot after pulling, peeling forge stick, and the chemical component requirement for forging stick is as follows: C :≤
0.08%, Mn :≤2%, Si :≤1.5%, P :≤0.035%, S :≤0.02 %, Cr:24~26%, Ni:19~22%, Mo :≤
0.5%, Cu :≤0.5%, surplus Fe；
(2) in blanking procedure: the size of blank obtained by blanking are as follows: φ 500 × (1025 ± 10) mm；
(3) before forging in heating process: blank obtained by blanking is placed in heating furnace middle position when shove charge, surrounding place carbon steel or
Person's steel alloy prevents direct flame contact bar from causing serious peroxidating, element dilution and grain coarsening phenomenon, while in blank
Surface layer overlay asbestos protect blank not sprayed directly by flame；In-furnace temperature≤100 DEG C when blank shove charge, shove charge are complete
It is heated at rear heating furnace, so that in-furnace temperature keeps the temperature 3~4h after being warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h,
Heating is then proceeded to so that in-furnace temperature keeps the temperature 1~2h after being warming up to 1110 DEG C ± 10 DEG C with the rate of≤150 DEG C/h；
(4) in preforming: 4-1. is upset to φ 750 × (443 ± 10) mm by blank first, and initial forging temperature is 1055 ± 3 DEG C；
Then blank is pulled out to φ 690 × (614 ± 10) mm, then by blank pressure height to 556 ± 10mm, final forging temperature 882
±3℃；Then blank melts down 20 ± 3min of heat preservation；4-2. uses two 200 formed punches of φ from blank upper surface and lower end blank
Face to blind hole in a state of excitement, afterwards turns over blank and outer circle is gently pressed to take out two φ 200mm formed punches, initial forging temperature is 998 ± 3 DEG C simultaneously；
Then two φ 250mm formed punches are changed while liquidating and reaming is carried out to two blind holes having rushed, blank is afterwards turned over and gently presses outer circle
Take out two φ 250mm formed punches, when φ 250mm formed punch punching, each volume under pressure was 2~3cm, and initial forging temperature is 970 ± 3 DEG C,
Final forging temperature is 850 ± 3 DEG C；Then blank melts down 20 ± 3min of heat preservation；Blank height is depressed into 472 ± 10mm by 4-3., forging of beginning
Temperature is 1025 ± 3 DEG C；Then it changes φ 350mm formed punch and rushes through-hole to blind hole has been rushed, initial forging temperature is 994 ± 3 DEG C；
(5) roll in ring process: through-hole is extended to φ 500mm by Ring Rolling Machine on 5-1. blank, and initial forging temperature is 963 ± 3 DEG C；So
Blank height is depressed into 446 ± 10mm afterwards, terminal temperature is 860 ± 3 DEG C；Then blank melts down 20 ± 3min of heat preservation；5-2. will
Blank height is depressed into 346 ± 10mm, and initial forging temperature is 1077 ± 3 DEG C, and final forging temperature is 900 ± 3 DEG C；Then blank melts down heat preservation
20±3min；It is 170 ± 10mm that one fire of Ring Rolling Machine, which is rolled to ring height, on 5-3. blank, and initial forging temperature is 1107 ± 3 DEG C, finish-forging
Temperature is 900 ± 3 DEG C；
(6) in cooling after forged process: ring should water cooling, water temperature be controlled at 15~25 DEG C immediately within 3min after rolling ring；
(7) in solution heat treatment process: in-furnace temperature≤200 DEG C when ring shove charge, heating furnace is heated after the completion of shove charge, is made
In-furnace temperature be warming up to 850 DEG C ± 10 DEG C with the rate of≤100 DEG C/h after keep the temperature 2.5~3.5h, then proceed to heating so that
In-furnace temperature keeps the temperature 1~2h after being warming up to 1080 DEG C ± 10 DEG C with the heating rate not less than 300 DEG C；Then ring is come out of the stove progress
Water cooling, water temperature are controlled at 15~25 DEG C.
2. hiding the manufacturing process of hot ring in nuclear steam turbine according to claim 1, it is characterised in that: forge stick chemistry at
Divide requirement as follows: C:0.04~0.08%, Mn:1.5~2%, Mo:0.3~0.5%.
3. hiding the manufacturing process of hot ring in nuclear steam turbine according to claim 1 or 2, it is characterised in that: 5-3 step
During rolling over ring, ring temperature can be significantly risen, and should not stop watering reduction ring temperature prevents crystal grain sharply swell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183273.7A CN110000327B (en) | 2019-03-12 | 2019-03-12 | Manufacturing process of heat shielding ring in nuclear turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183273.7A CN110000327B (en) | 2019-03-12 | 2019-03-12 | Manufacturing process of heat shielding ring in nuclear turbine |
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| CN110000327A true CN110000327A (en) | 2019-07-12 |
| CN110000327B CN110000327B (en) | 2020-06-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570988A (en) * | 2020-11-05 | 2021-03-30 | 江苏亚星锚链股份有限公司 | Manufacturing method of low-magnetic anchor chain accessory |
| CN116713419A (en) * | 2023-06-26 | 2023-09-08 | 重庆新承航锐科技股份有限公司 | Thermal processing method and system for improving mechanical properties of 13Cr10Mo1W1VNbN gas turbine wheel disc forging |
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| CN107779694A (en) * | 2017-10-30 | 2018-03-09 | 山东伊莱特重工股份有限公司 | A kind of 6082 aluminium alloy flange manufacture crafts |
Cited By (2)
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| CN112570988A (en) * | 2020-11-05 | 2021-03-30 | 江苏亚星锚链股份有限公司 | Manufacturing method of low-magnetic anchor chain accessory |
| CN116713419A (en) * | 2023-06-26 | 2023-09-08 | 重庆新承航锐科技股份有限公司 | Thermal processing method and system for improving mechanical properties of 13Cr10Mo1W1VNbN gas turbine wheel disc forging |
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