CN106623941A - Staged heating, extruding and form-controlling method of powder superalloy component - Google Patents
Staged heating, extruding and form-controlling method of powder superalloy component Download PDFInfo
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- CN106623941A CN106623941A CN201611022071.7A CN201611022071A CN106623941A CN 106623941 A CN106623941 A CN 106623941A CN 201611022071 A CN201611022071 A CN 201611022071A CN 106623941 A CN106623941 A CN 106623941A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
- B22F2003/208—Warm or hot extruding
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Abstract
The invention provides a staged heating, extruding and form-controlling method of a powder superalloy component. Through use of good liquidity of powder materials and by the aid of the deformation temperature and pressure which are changed in stages, the powder materials reach preliminary densification under the low temperature and pressure, and powder particles are retained and have surface activity and liquidity to a certain degree; then the deformation temperature and pressure are increased, and the plastic deformation parameters such as the motion direction of a mold and the deformation speed are combined, so that superalloy powder flows and forms a certain shape; during the process, pores among the powder particles are completely eliminated, and full densification is reached; and meanwhile, through circulatory alternation action of forward extrusion and backward extrusion, certain strain conditions are exerted on the powder particles, coarse particles are changed into fine crystal particles, component formation is finished, and a full compact powder component is prepared, so that solidification-structure-formation integration of the powder component is achieved. A powder superalloy forging stock with the compact structure and even and fine crystal particles can be obtained.
Description
Technical field
The present invention is a kind of stepwise heating extruding control shape method for powder metallurgy superalloy component, belongs to hot-working process
Field, is related to the improvement of powder metallurgy superalloy component preparation technology.
Background technology
Powder metallurgy superalloy is that the solidifying segregation caused to solve casting wrought alloy high temperature alloy high-alloying is stranded with deformation
The difficult and diskware material that grows up.High-alloying powder metallurgy superalloy has high temperature resistant, high-strength tenacity and low cracks can spread speed
The advantage of the excellent combination properties such as rate, is that manufacture high-performance, high reliability, the long-life advanced aero engine turbine disk etc. are resistance to
The preferred material of high-temperature component.But, high-alloying powder metallurgy superalloy is typically to temperature and its sensitivity, and process window is narrow, category
In less-deformable alloy, cause there is certain difficulty during technique execution and organizational controls.
External powder metallurgy superalloy is mainly used to prepare the hot-end components such as the high-performance enginer turbine disk, mainly using powder
Prepared by the process of high temperature insostatic pressing (HIP)+extruding+isothermal forging, its process characteristic is complex process, long preparation period, high cost,
And, need to carry out multiple machining to component blank between different operations, to meet operation to component blank shape
With the requirement of apparent condition, stock utilization is caused low.
The content of the invention
The present invention is exactly designed there is provided a kind of for powder for above-mentioned existing domestic the deficiencies in the prior art
Last superalloy components stepwise heating extruding control shape method, its objective is improve powder metallurgy superalloy component production efficiency and
Stock utilization.
The purpose of the present invention is achieved through the following technical solutions：
This kind is used for the stepwise heating extruding control shape method of powder metallurgy superalloy component, it is characterised in that：The step of the method
Suddenly it is：
Step one, powder prepare
Atomization superalloy powder is calculated and weighed according to scantling, and the weight of weighing is calculated as follows：
mLoad=mCalculate/ 0.8 formula 1
In formula：mLoadAtomization superalloy powder weight in be loaded into mould, mCalculateIt is to be calculated according to the volume of component
The atomization superalloy powder weight for obtaining；
It is prepared by step 2, extrusion die
Extrusion die is prepared using Steel material of the fracture strength more than 2000MPa, the mould is by upper circular die (1) and lower ring
Shape mould (2) constitutes extrusion die profile, wherein, lower circular die (2) is fixed on the lower table of press, upper circular die (1) dress
In lower circular die (2), and it is fitted close with lower circular die (2), the internal diameter of the internal diameter of upper circular die (1) than lower circular die (2)
Greatly, upper circular die (1) and lower circular die (2) can be split vertically；
Have upper press ring (3) in the inner chamber of upper circular die (1), between upper press ring (3) and upper circular die (1) with being combined into
Degree coordinates, and seaming chuck (4) is installed in the centre bore of upper press ring (3), excessive with being combined between seaming chuck (4) and upper press ring (3)
Coordinate, push-down head (5) be installed in the centre bore of lower circular die (2), between push-down head (5) and lower circular die (2) with being combined into
Excessively coordinate, so as to realize that upper press ring (3), seaming chuck (4) and push-down head (5) vertically can be moved up and down freely and three
The centrage of person is coaxial with the centrage of upper circular die (1) and lower circular die (2)；
Step 3, hydraulic system and heating system are in place
Extrusion die inwall ethanol and acetone are cleaned out, is placed in vacuum room, three sets of liquid are set in vacuum room
Pressure system and heating system, three sets of hydraulic systems dock respectively upper press ring (3), seaming chuck (4) and push-down head (5), high in atomization
Before temperature alloy powder is loaded, the upper end of push-down head (5) is concordant with the upper end of lower circular die (2), upper press ring (3) and seaming chuck
(4) lower end is concordant, and is higher by circular die (1) top, and heating system is located at the surrounding of extrusion die；
Step 4, powder are loaded
By preprepared powder metallurgy superalloy atomized powder by upper press ring (3) and seaming chuck (4) in vacuum room
Lower end pour in mould with the gap between upper circular die (1)；
Step 5, powder and mould are preheated
Mould and powder are heated to into 500-700 DEG C, are incubated, temperature retention time is calculated as follows：
TTemperature retention time=(LUpper circular die intracavity diameter+LUpper circular die wall thickness× 2) × 1.7min/mm formula 2
Step 6, powder curing
After temperature retention time terminates, push-down head (5) keeps difference, upper press ring (3) and seaming chuck (4) while moving downward,
Speed is maintained between 17mm/s～20mm/s, until pressure reaches 300-700MPa, now, upper press ring (3) and seaming chuck (4)
Stop motion；
Then proceed to be warmed up to 1050-1150 DEG C, be incubated, temperature retention time is calculated according to formula 2；
Component forming after step 7, powder curing is using one of following four mode：
The first：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, upper press ring (3) and seaming chuck
(4) continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, on
Pressure head (4) and upper press ring (3) stop motion, can now obtain cylindrical powder high temperature alloy ingot；
Second：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring
(3) continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, it
Afterwards, seaming chuck (4) continues to move downward, while upper press ring (3) starts to move upwards at the same speed, the lower surface of seaming chuck (4) does not connect
When touching down the upper surface of pressure head (5), seaming chuck (4) and upper press ring (3) stop motion, you can obtain cup-shaped powder metallurgy superalloy
Ingot；
The third：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring
(3) continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, it
Afterwards, seaming chuck (4) continues to move downward, while upper press ring (3) starts to move upwards at the same speed, the lower surface for treating seaming chuck (4) connects
When touching down the upper surface of pressure head (5), seaming chuck (4) and upper press ring (3) stop motion, you can obtain tubular powder metallurgy superalloy
Ingot；
4th kind：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring
(3) continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, it
Afterwards, push-down head (5) starts to move downward at the same speed, treats the lower circular die (2) of the lower surface contact of seaming chuck (4) and upper press ring (3)
During the upper surface of inner chamber, you can obtain rod powder metallurgy superalloy ingot；
The post processing of step 8, powder metallurgy superalloy ingot
By the position adjustment of upper press ring (3) and seaming chuck (4) to the state before atomization superalloy powder is loaded, will
Upper circular die (1) and lower circular die (2) are opened vertically, take out powder metallurgy superalloy ingot, and being cooled to after room temperature carries out blast, and
Surface smut is removed using the method for machining, that is, obtains powder metallurgy superalloy component.
Technical solution of the present invention is had the special feature that with beneficial effect：
Present invention is generally directed to prepare powder metallurgy superalloy component using high temperature insostatic pressing (HIP)+extruding+isothermal forging process exist
The high state of the art of forging long preparation period, manufacturing cost, the method with powder stage plus hot extrusion control shape is original to substitute
The mode of Powder hot isostatic pressure+extruding+isothermal forging, solves long preparation period, and manufacturing cost is high and stock utilization is low
Problem.
The present invention is that a kind of plastic forming technology in powder metallurgy high-temperature alloy component is studied, and its ultimate principle is
The mobility that dusty material is good is make use of, by the deformation temperature and pressure of phase change, dusty material is made in lower temperature
Less pressure is issued to initial densification, and retains powder particle and have a certain degree of surface activity and mobility, connects down
Come, improve deformation temperature and pressure, with reference to the plastic deformation parameter such as mold movement direction and deformation velocity, make superalloy powder
Flow and reach certain shape (cylindrical, cup-shaped, rod and tubular etc.), in this course, the hole between powder particle
Gap is wholly absent, and reaches full densification.At the same time, using forward extrusion and the cycle alternation effect of back of the body extruding, to powder particle
Apply certain strained condition, big particle to small grains crystal grain changes, and completes component forming, so as to prepare full cause
Close powder component, realizes that powder component solidification-tissue-is forming integrated.Compared to high temperature insostatic pressing (HIP) (generally 10%), deformation
Amount is increased substantially to 50～70%, promotes recrystallization to occur, and the primary granule border of powder is crushed, so as to prepare group
Knit densification and the powder metallurgy superalloy component with tiny recrystal grain.
Technical solution of the present invention is with compared with the technology of preparing of domestic and international powder metallurgy superalloy annular construction member, and its advantage is main
It is embodied in：
(1) using the mobility that powder is good, during powder forming, the shape of powder component is changing always, realizes
The integration of component solidification-tissue-shaping, reduces blank allowance, improves forging stock utilization；
(2) dusty material shapes from powder body to last block, and whole process is not to realize at same temperature,
Deformation temperature is phase change, so as to meet powder particle from interface cohesion to Recrystallization nucleation and grow up whole process for
The different demands of Plastic Forming condition；
(3) powder particle shapes under certain Plastic Deformation Conditions, because the cycle alternation of forward extrusion and back of the body extruding is made
With being conveniently adjusted the stress and strain state of component zones of different；
(4) technological process is simplified, shortens the lead time, improve stock utilization, reduce component manufacturing cost.
Description of the drawings
Fig. 1 is the structural representation of extrusion die in technical solution of the present invention
Fig. 2 adds up to the microstructure morphology of component for the high temperature of technical solution of the present invention embodiment 1
Fig. 3 adds up to the microstructure morphology of component for the high temperature of technical solution of the present invention embodiment 2
Specific embodiment
Technical solution of the present invention is further described below with reference to embodiment：
Embodiment 1
This kind is used for the stepwise heating extruding control shape method of powder metallurgy superalloy component, it is characterised in that：The step of the method
Suddenly it is：
Step one, powder prepare
Atomization superalloy powder 7kg is calculated and weighed according to scantling, and the weight of weighing is calculated as follows：
mLoad=mCalculate/ 0.8 formula 1
In formula：mLoadAtomization superalloy powder weight in be loaded into mould, mCalculateIt is to be calculated according to the volume of component
The atomization superalloy powder weight for obtaining；
It is prepared by step 2, extrusion die
Extrusion die is prepared using Steel material of the fracture strength more than 2000MPa, the mould is by upper circular die 1 and lower annular
Mould 2 constitutes extrusion die profile, wherein, lower circular die 2 is fixed on the lower table of press, and upper circular die 1 is mounted in lower annular
On mould 2, and it is fitted close with lower circular die 2, the internal diameter of upper circular die 1 is bigger than the internal diameter of lower circular die 2, and upper circular die 1 is with
Circular die 2 can be split vertically；
Have upper press ring 3 in the inner chamber of upper circular die 1, between upper press ring 3 and upper circular die 1 with being combined into excessively cooperation,
Seaming chuck 4 is installed in the centre bore of upper press ring 3, between seaming chuck 4 and upper press ring 3 with excessively cooperation is combined into, in lower circular die 2
Centre bore in push-down head 5 is installed, between push-down head 5 and lower circular die 2 with being combined into excessively cooperation, so as to realize upper press ring 3,
Seaming chuck 4 and push-down head 5 vertically can be moved up and down freely and the centrage of three and upper circular die 1 and lower circular die
2 centrage is coaxial；
Step 3, hydraulic system and heating system are in place
Extrusion die inwall ethanol and acetone are cleaned out, is placed in vacuum room, three sets of liquid are set in vacuum room
Pressure system and heating system, three sets of hydraulic systems dock respectively upper press ring 3, seaming chuck 4 and push-down head 5, in atomization high temperature alloy
Before powder is loaded, the upper end of push-down head 5 is concordant with the upper end of lower circular die 2, and upper press ring 3 is concordant with the lower end of seaming chuck 4, and
The top of circular die 1 is higher by, heating system is located at the surrounding of extrusion die；
Step 4, powder are loaded
In vacuum room by preprepared high temperature alloy atomized powder 6 by the lower end of upper press ring 3 and seaming chuck 4 with
Gap between upper circular die 1 is poured in mould；
Step 5, powder and mould are preheated
Mould and high temperature alloy atomized powder 6 are heated to into 700 DEG C, are incubated, temperature retention time is calculated as follows：
TTemperature retention time=(LUpper circular die intracavity diameter+LUpper circular die wall thickness× 2) × 1.7min/mm formula 2
Step 6, powder curing
After temperature retention time terminates, push-down head 5 keeps different, and upper press ring 3 and seaming chuck 4 are moved downward simultaneously, and speed is protected
Hold between 17mm/s, until pressure reaches 500MPa, now, upper press ring 3 and the stop motion of seaming chuck 4；
Then proceed to be warmed up to 1070 DEG C, be incubated, temperature retention time is calculated according to formula 2；
Step 7, cylindrical powder component forming
After waiting until that temperature retention time terminates again, push-down head 5 is still remained stationary as, upper press ring 3 and seaming chuck 4 continue simultaneously to
Lower motion, speed is maintained between 17mm/s, until pressure reaches 1400MPa, seaming chuck 4 and the stop motion of upper press ring 3, now
Cylindrical powder high temperature alloy ingot can be obtained；
The post processing of step 8, powder metallurgy superalloy ingot
By the position adjustment of upper press ring 3 and seaming chuck 4 to the state before atomization superalloy powder is loaded, by upper ring
Shape mould 1 and lower circular die 2 are opened vertically, take out powder metallurgy superalloy ingot, and being cooled to after room temperature carries out blast, and using machinery
The method of processing removes surface smut, that is, obtain powder metallurgy superalloy component.
Referring to shown in accompanying drawing 2, the microstructure of powder metallurgy superalloy component is uniform, can't see obvious primary granule side
Boundary.
Embodiment 2
This kind is used for the stepwise heating extruding control shape method of powder metallurgy superalloy component, it is characterised in that：The step of the method
Suddenly it is：
Step one, powder prepare
Atomization superalloy powder 5kg is calculated and weighed according to scantling, and the weight of weighing is calculated as follows：
mLoad=mCalculate/ 0.8 formula 1
In formula：mLoadAtomization superalloy powder weight in be loaded into mould, mCalculateIt is to be calculated according to the volume of component
The atomization superalloy powder weight for obtaining；
It is prepared by step 2, extrusion die
Extrusion die is prepared using Steel material of the fracture strength more than 2000MPa, the mould is by upper circular die 1 and lower annular
Mould 2 constitutes extrusion die profile, wherein, lower circular die 2 is fixed on the lower table of press, and upper circular die 1 is mounted in lower annular
On mould 2, and it is fitted close with lower circular die 2, the internal diameter of upper circular die 1 is bigger than the internal diameter of lower circular die 2, and upper circular die 1 is with
Circular die 2 can be split vertically；
Have upper press ring 3 in the inner chamber of upper circular die 1, between upper press ring 3 and upper circular die 1 with being combined into excessively cooperation,
Seaming chuck 4 is installed in the centre bore of upper press ring 3, between seaming chuck 4 and upper press ring 3 with excessively cooperation is combined into, in lower circular die 2
Centre bore in push-down head 5 is installed, between push-down head 5 and lower circular die 2 with being combined into excessively cooperation, so as to realize upper press ring 3,
Seaming chuck 4 and push-down head 5 vertically can be moved up and down freely and the centrage of three and upper circular die 1 and lower circular die
2 centrage is coaxial；
Step 3, hydraulic system and heating system are in place
Extrusion die inwall ethanol and acetone are cleaned out, is placed in vacuum room, three sets of liquid are set in vacuum room
Pressure system and heating system, three sets of hydraulic systems dock respectively upper press ring 3, seaming chuck 4 and push-down head 5, in atomization high temperature alloy
Before powder is loaded, the upper end of push-down head 5 is concordant with the upper end of lower circular die 2, and upper press ring 3 is concordant with the lower end of seaming chuck 4, and
The top of circular die 1 is higher by, heating system is located at the surrounding of extrusion die；
Step 4, powder are loaded
In vacuum room by preprepared high temperature alloy atomized powder 6 by the lower end of upper press ring 3 and seaming chuck 4 with
Gap between upper circular die 1 is poured in mould；
Step 5, powder and mould are preheated
Mould and high temperature alloy atomized powder 6 are heated to into 500-700 DEG C, are incubated, temperature retention time is as follows
Calculate：
TTemperature retention time=(LUpper circular die intracavity diameter+LUpper circular die wall thickness× 2) × 1.7min/mm formula 2
Step 6, powder curing
After temperature retention time terminates, push-down head 5 keeps different, and upper press ring 3 and seaming chuck 4 are moved downward simultaneously, and speed is protected
Hold between 20mm/s, until pressure reaches 700MPa, now, upper press ring 3 and the stop motion of seaming chuck 4；
Then proceed to be warmed up to 1100 DEG C, be incubated, temperature retention time is calculated according to formula 2；
Step 7, the shaping of cup-shaped powder component
After waiting until that temperature retention time terminates again, push-down head 5 is still remained stationary as, seaming chuck 4 and upper press ring 3 continue simultaneously to
Lower motion, speed is maintained between 20mm/s, until pressure reaches 1100MPa, afterwards, seaming chuck 4 continues to move downward, while
Upper press ring 3 starts to move upwards at the same speed, when the lower surface of seaming chuck 4 does not contact the upper surface of push-down head 5, seaming chuck 4 and upper pressure
The stop motion of ring 3, you can obtain cup-shaped powder metallurgy superalloy ingot；
The post processing of step 8, powder metallurgy superalloy ingot
By the position adjustment of upper press ring 3 and seaming chuck 4 to the state before atomization superalloy powder is loaded, by upper ring
Shape mould 1 and lower circular die 2 are opened vertically, take out powder metallurgy superalloy ingot, and being cooled to after room temperature carries out blast, and using machinery
The method of processing removes surface smut, that is, obtain powder metallurgy superalloy component.
Referring to shown in accompanying drawing 3, the microstructure of powder metallurgy superalloy component is uniform, can't see obvious primary granule side
Boundary.
Claims (1)
1. a kind of powder metallurgy superalloy element stages add hot extrusion control shape method, it is characterised in that：The step of the method is：
Step one, powder prepare
Atomization superalloy powder is calculated and weighed according to scantling, and the weight of weighing is calculated as follows：
mLoad=mCalculate/ 0.8 formula 1
In formula：mLoadAtomization superalloy powder weight in be loaded into mould, mCalculateIt is to be calculated according to the volume of component
Atomization superalloy powder weight；
It is prepared by step 2, extrusion die
Extrusion die is prepared using Steel material of the fracture strength more than 2000MPa, the mould is by upper circular die (1) and lower circular die
(2) extrusion die profile is constituted, wherein, lower circular die (2) is fixed on the lower table of press, and upper circular die (1) is mounted in down
In circular die (2), and it is fitted close with lower circular die (2), the internal diameter of upper circular die (1) is bigger than the internal diameter of lower circular die (2), on
Circular die (1) and lower circular die (2) can be split vertically；
There is upper press ring (3) in the inner chamber of upper circular die (1), excessively matching somebody with somebody with being combined between upper press ring (3) and upper circular die (1)
Close, seaming chuck (4) is installed in the centre bore of upper press ring (3), excessively coordinating with being combined between seaming chuck (4) and upper press ring (3),
Push-down head (5) is installed in the centre bore of lower circular die (2), excessively matching somebody with somebody with being combined between push-down head (5) and lower circular die (2)
Close, so as to realize that upper press ring (3), seaming chuck (4) and push-down head (5) vertically can be moved up and down freely and in three
Heart line is coaxial with the centrage of upper circular die (1) and lower circular die (2)；
Step 3, hydraulic system and heating system are in place
Extrusion die inwall ethanol and acetone are cleaned out, is placed in vacuum room, three sets of hydraulic pressure systems are set in vacuum room
System and heating system, three sets of hydraulic systems dock respectively upper press ring (3), seaming chuck (4) and push-down head (5), close in atomization high temperature
Before bronze end loads, the upper end of push-down head (5) is concordant with the upper end of lower circular die (2), upper press ring (3) and seaming chuck (4)
Lower end is concordant, and is higher by circular die (1) top, and heating system is located at the surrounding of extrusion die；
Step 4, powder are loaded
By preprepared powder metallurgy superalloy atomized powder by under upper press ring (3) and seaming chuck (4) in vacuum room
End is poured in mould with the gap between upper circular die (1)；
Step 5, powder and mould are preheated
Mould and powder are heated to into 500-700 DEG C, are incubated, temperature retention time is calculated as follows：
TTemperature retention time=(LUpper circular die intracavity diameter+LUpper circular die wall thickness× 2) × 1.7min/mm formula 2
Step 6, powder curing
After temperature retention time terminates, push-down head (5) keeps different, and upper press ring (3) and seaming chuck (4) are while move downward, speed
It is maintained between 17mm/s～20mm/s, until pressure reaches 300-700MPa, now, upper press ring (3) and seaming chuck (4) stop
Motion；
Then proceed to be warmed up to 1050-1150 DEG C, be incubated, temperature retention time is calculated according to formula 2；
Component forming after step 7, powder curing is using one of following four mode：
The first：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, upper press ring (3) and seaming chuck (4)
Continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, seaming chuck
(4) and upper press ring (3) stop motion, cylindrical powder high temperature alloy ingot can now be obtained；
Second：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring (3)
Continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, afterwards,
Seaming chuck (4) continues to move downward, while upper press ring (3) starts to move upwards at the same speed, the lower surface of seaming chuck (4) does not contact down
During the upper surface of pressure head (5), seaming chuck (4) and upper press ring (3) stop motion, you can obtain cup-shaped powder metallurgy superalloy ingot；
The third：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring (3)
Continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, afterwards,
Seaming chuck (4) continues to move downward, while upper press ring (3) starts to move upwards at the same speed, under treating the lower surface contact of seaming chuck (4)
During the upper surface of pressure head (5), seaming chuck (4) and upper press ring (3) stop motion, you can obtain tubular powder metallurgy superalloy ingot；
4th kind：After waiting until that temperature retention time terminates again, push-down head (5) is still remained stationary as, seaming chuck (4) and upper press ring (3)
Continue to move downward simultaneously, speed is maintained between 17mm/s～20mm/s, until pressure reaches 1000-1400MPa, afterwards,
Push-down head (5) starts to move downward at the same speed, treats the inner chamber of the lower circular die (2) of the lower surface contact of seaming chuck (4) and upper press ring (3)
Upper surface when, you can obtain rod powder metallurgy superalloy ingot；
The post processing of step 8, powder metallurgy superalloy ingot
By the position adjustment of upper press ring (3) and seaming chuck (4) to the state before atomization superalloy powder is loaded, by upper ring
Shape mould (1) and lower circular die (2) are opened vertically, take out powder metallurgy superalloy ingot, and being cooled to after room temperature carries out blast, and adopts
The method of machining removes surface smut, that is, obtain powder metallurgy superalloy component.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107052344A (en) * | 2017-05-26 | 2017-08-18 | 龙岩紫荆创新研究院 | A kind of neodymium iron boron ring composite die |
| CN107511483A (en) * | 2017-10-11 | 2017-12-26 | 南通聚星铸锻有限公司 | A kind of powder metallurgy superalloy rod pressing method |
| CN108555302A (en) * | 2018-01-22 | 2018-09-21 | 华中科技大学 | A kind of cold increasing material/warm and hot forging combined shaping method of non-crystaline amorphous metal part |
| CN108994299A (en) * | 2018-07-13 | 2018-12-14 | 中国航发北京航空材料研究院 | A kind of heating of powder metallurgy superalloy element stages squeezes control property device and application method |
| CN109396424A (en) * | 2018-11-23 | 2019-03-01 | 南京宁阪特殊合金有限公司 | The preparation method of nodulizer briquetting |
| CN110280767A (en) * | 2019-07-11 | 2019-09-27 | 中国航发北京航空材料研究院 | A kind of preparation method and mold of titanium aluminium composite pipe |
| CN110293227A (en) * | 2019-07-11 | 2019-10-01 | 中国航发北京航空材料研究院 | A kind of the backward extrusion preparation method and mold of the powder metallurgy superalloy ingot blank with jacket |
| CN111283201A (en) * | 2020-03-31 | 2020-06-16 | 四川科匠轻金属材料科技有限公司 | Production equipment and production method for semi-continuous ingot making of alloy powder |
| CN111647764A (en) * | 2020-04-20 | 2020-09-11 | 中南大学 | Nickel-based powder superalloy and forming method thereof |
| CN114789250A (en) * | 2022-04-07 | 2022-07-26 | 中国航发北京航空材料研究院 | Preparation method of powder high-temperature alloy cylindrical straight gear component |
| CN115319092A (en) * | 2022-07-20 | 2022-11-11 | 中国航发北京航空材料研究院 | In-situ powder metallurgy forming method for face gear with helical angle |
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|---|---|---|---|---|
| CN107052344A (en) * | 2017-05-26 | 2017-08-18 | 龙岩紫荆创新研究院 | A kind of neodymium iron boron ring composite die |
| CN107511483A (en) * | 2017-10-11 | 2017-12-26 | 南通聚星铸锻有限公司 | A kind of powder metallurgy superalloy rod pressing method |
| CN108555302A (en) * | 2018-01-22 | 2018-09-21 | 华中科技大学 | A kind of cold increasing material/warm and hot forging combined shaping method of non-crystaline amorphous metal part |
| CN108994299B (en) * | 2018-07-13 | 2020-04-03 | 中国航发北京航空材料研究院 | Device for controlling heating extrusion performance of powder superalloy component in stage and using method |
| CN108994299A (en) * | 2018-07-13 | 2018-12-14 | 中国航发北京航空材料研究院 | A kind of heating of powder metallurgy superalloy element stages squeezes control property device and application method |
| CN109396424A (en) * | 2018-11-23 | 2019-03-01 | 南京宁阪特殊合金有限公司 | The preparation method of nodulizer briquetting |
| CN109396424B (en) * | 2018-11-23 | 2019-10-29 | 南京宁阪特殊合金有限公司 | The preparation method of nodulizer briquetting |
| CN110293227A (en) * | 2019-07-11 | 2019-10-01 | 中国航发北京航空材料研究院 | A kind of the backward extrusion preparation method and mold of the powder metallurgy superalloy ingot blank with jacket |
| CN110280767A (en) * | 2019-07-11 | 2019-09-27 | 中国航发北京航空材料研究院 | A kind of preparation method and mold of titanium aluminium composite pipe |
| CN110280767B (en) * | 2019-07-11 | 2021-05-28 | 中国航发北京航空材料研究院 | Preparation method and die of titanium-aluminum composite pipe |
| CN111283201A (en) * | 2020-03-31 | 2020-06-16 | 四川科匠轻金属材料科技有限公司 | Production equipment and production method for semi-continuous ingot making of alloy powder |
| CN111283201B (en) * | 2020-03-31 | 2023-06-27 | 四川科匠轻金属材料科技有限公司 | Production method for semi-continuous ingot production of alloy powder |
| CN111647764A (en) * | 2020-04-20 | 2020-09-11 | 中南大学 | Nickel-based powder superalloy and forming method thereof |
| CN114789250A (en) * | 2022-04-07 | 2022-07-26 | 中国航发北京航空材料研究院 | Preparation method of powder high-temperature alloy cylindrical straight gear component |
| CN114789250B (en) * | 2022-04-07 | 2024-04-09 | 中国航发北京航空材料研究院 | Preparation method of powder superalloy cylindrical spur gear component |
| CN115319092A (en) * | 2022-07-20 | 2022-11-11 | 中国航发北京航空材料研究院 | In-situ powder metallurgy forming method for face gear with helical angle |
| CN115319092B (en) * | 2022-07-20 | 2024-06-18 | 中国航发北京航空材料研究院 | In-situ powder metallurgy forming method for face gear with spiral angle |
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