CN106925663A - A kind of spring washer manufacturing process - Google Patents

A kind of spring washer manufacturing process Download PDF

Info

Publication number
CN106925663A
CN106925663A CN201511031966.2A CN201511031966A CN106925663A CN 106925663 A CN106925663 A CN 106925663A CN 201511031966 A CN201511031966 A CN 201511031966A CN 106925663 A CN106925663 A CN 106925663A
Authority
CN
China
Prior art keywords
punching press
spring washer
spring
carried
temperature
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.)
Granted
Application number
CN201511031966.2A
Other languages
Chinese (zh)
Other versions
CN106925663B (en
Inventor
林峰
叶远东
李杰华
李金魁
杨荐博
钟鸣
金海清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Atomic Energy Industry Co., Ltd
Original Assignee
China Jianzhong Nuclear Fuel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Jianzhong Nuclear Fuel Co Ltd filed Critical China Jianzhong Nuclear Fuel Co Ltd
Priority to CN201511031966.2A priority Critical patent/CN106925663B/en
Publication of CN106925663A publication Critical patent/CN106925663A/en
Application granted granted Critical
Publication of CN106925663B publication Critical patent/CN106925663B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001Shaping combined with punching, e.g. stamping and perforating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races

Abstract

The invention belongs to manufacturing process, and in particular to a kind of spring washer manufacturing process.It includes:Step one:Punching press, punching press includes:Location hole punching press, inner circle punching press, cylindrical punching press and dish-shaped face punching press, step 2:Aging strengthening model, the spring washer obtained to punching press carries out aging strengthening model, step 3:Normal temperature swirling flows, carry out 5 normal temperature swirling flows, apply the load forces of 2100N to spring washer every time, are kept for 30~60 seconds, step 4:Hot prestressing treatment.Remarkable result of the invention is:Automation, efficiency high, low cost is particularly suitable for small lot batch manufacture, and flexible and changeable, strong applicability, product size high precision, the property transformed is strong.

Description

A kind of spring washer manufacturing process
Technical field
The invention belongs to manufacturing process, and in particular to a kind of spring washer manufacturing process.
Background technology
Spring washer is one of parts of most widely used damping, buffering, anti-dropout.It is different according to application field, The material of spring washer is also different.Most applicable cases do not need spring washer to possess property, therefore select mostly 50CrVA, 60Si2MnA or other alloys, its manufacturing process comparative maturity.
But the spring washer situation used on nuclear reactor is more special, is embodied in:1. nuclear reactor is to peace Full requirement is very high, therefore spring washer can not only serve the effect such as damping, buffering, in addition it is also necessary to which it possesses the heat between supplementary material The function of swollen difference.2. nuclear reactor needs to consider shock proof ability under extreme case, it is desirable to which spring washer bears larger alternation Load works for a long time.3. assume that accident occurs in nuclear reactor, spring washer there is a need for being able to bear high temperature for a long time.
It is final to determine to use nickel base superalloy GH4169 as core by the research and development and coordination of association area scientific research personnel The original material of level spring washer.But because the material hardness is big, deformation is difficult, and need to need to carry out hot place according to core level Manage, therefore existing spring washer manufacture method cannot be used for nickel base superalloy GH4169.
The content of the invention
The present invention is directed to prior art defect, there is provided a kind of spring washer manufacturing process.
The technical scheme is that:A kind of spring washer manufacturing process, comprises the steps:
Step one:Punching press
Punching press includes:Location hole punching press, inner circle punching press, cylindrical punching press and dish-shaped face punching press,
Step 2:Aging strengthening model
The spring washer obtained to punching press carries out aging strengthening model,
Aging strengthening model is carried out using high-temperature vacuum heat-treatment furnace, vacuum is better than 1.33 × 10-2Pa,
Spring washer is heated first, firing rate is 150 DEG C/h~180 DEG C/h, when temperature reaches 710 DEG C~730 DEG C When stop heat up;Then 8~9h is incubated within the temperature range of 710 DEG C~730 DEG C;3rd step, with 35 DEG C/h~75 DEG C/h's Speed is lowered the temperature, until temperature is reduced to 610 DEG C~630 DEG C;4th step, within the temperature range of 610 DEG C~630 DEG C be incubated 8~ 9h;5th step, is lowered the temperature with the speed of 35 DEG C/h~75 DEG C/h, cools to 380 DEG C~420 DEG C;6th step, pours argon gas, argon gas Pressure is 0.08~0.09MPa, and is cooled down;7th step, when temperature is less than or equal to 120 DEG C, room temperature is placed on by spring washer Naturally is cooled down,
Step 3:Normal temperature swirling flows
5 normal temperature swirling flows are carried out, apply the load forces of 2100N to spring washer every time, kept for 30~60 seconds,
Step 4:Hot prestressing treatment
1) by spring washer on the screw rod, the fit clearance control of spring washer internal diameter and screw diameter 0.2~ 0.3mm, shipped quantity 5~15, during loading, the positive and negative relative ranks of spring washer are placed,
2) pressure is applied to spring washer, it is ensured that the height of each spring shim is 0.93~0.95mm after applying pressure,
3) spring washer that will be installed is put into heat-treatment furnace, is heat-treated, and Technology for Heating Processing is:Heat up for the first time To 300 DEG C, 6h is incubated;Second intensification is carried out after being cooled to room temperature;250 DEG C are warming up to for the second time, are incubated 6h.
A kind of spring washer manufacturing process as described above, wherein, in described step one,
Location hole punching press:In band two ends punching press location hole, location hole, for one group, band is located at group location hole with two The distance between two ends, the other location hole of adjacent sets are identical,
The location hole is used for the positioning of subsequent technique,
Inner circle punching press:Inner circle punching press is carried out using endoporus drift, unnecessary circular portion punching press is fallen, form a circle Hole, the circular hole is the circular hole of spring washer,
Cylindrical punching press:Cylindrical punching press is carried out using outer round punch, punching press, punching press are carried out according to the cylindrical size of spring washer The annulus for falling is exactly the blank of spring washer, the annulus for coming will be stamped out after the completion of punching press and is placed back into original position again,
Dish-shaped face punching press:Dish-shaped face punching press is carried out with dish-shaped face punch-pin, the spring blank of annular is struck out into spring pad The shape of circle, the shape of described dish-shaped face punch-pin matches with the shape of the spring washer to be produced.
A kind of spring washer manufacturing process as described above, wherein, the cylindrical punching press told is carried out according to following processes: Band top sets outer round punch, the corresponding position setting ejection block of outer round punch, the setting below ejection block below band Spring, during punching press, with the downward punching press of outer round punch, stamps out the spring blank of annular, and the spring blank of the annular is pressed Onto ejection block, when outer round punch return, ejection block is gone back to original position by liftout spring surely, thus the annular being stamped bullet Spring blank is also just pushed up go back to original position..
Remarkable result of the invention is:1. automate, efficiency high.GH419 bands need to only be passed through feed appliance by operating personnel Mould is sent into, mould once completes whole punch forming process.2. low cost, is particularly suitable for small lot batch manufacture.Only need a noose The simple stamping mold of structure can complete the Sheet Metal Forming Technology of spring washer, simple to operate, with low cost.3. flexible and changeable, it is applicable Property is strong.Only need to more transducer set drift and cavity plate, you can suitable for the processing of the spring washer of different size, be particularly well-suited to many The production of species small lot spring washer and scientific research mission.4. product size high precision.The mould takes fine blanking die to design knot Structure, product shaping precision is higher, and the significant dimensions precision such as the inside and outside diameter of spring and axiality, the depth of parallelism can reach after shaping 0.02mm.5. the property transformed is strong.On the basis of the progressive die, drift quantity is increased side by side, be capable of achieving the rule of batch spring washer Modelling is produced, and single punch and matrix independent operating, easy maintenance and replacement.
Brief description of the drawings
Fig. 1 is the course of work schematic diagram of the application spring washer manufacturing process;
Fig. 2 is to be processed the schematic diagram that band processes situation in different step;
Fig. 3 is aging strengthening model temperatur-timel curve figure;
Fig. 4 is the curve map of swirling flows.
In figure:1. initiating terminal, 2. band, 3. position punch, 4. endoporus drift, 5. outer round punch, 6. dish-shaped face punch-pin, 7. Spring washer, 8. dish-shaped face cavity plate, 9. liftout spring, 10. ejection block.
Specific embodiment
A kind of spring washer manufacturing process, comprises the steps:
Step one:Punching press
Punching press includes:Location hole punching press, inner circle punching press, cylindrical punching press and dish-shaped face punching press.
Location hole punching press:In band two ends punching press location hole, location hole, for one group, band is located at group location hole with two The distance between two ends, the other location hole of adjacent sets are identical.
The location hole is used for the positioning of subsequent technique.
Inner circle punching press:Inner circle punching press is carried out using endoporus drift, unnecessary circular portion punching press is fallen, form a circle Hole, the circular hole is the circular hole of spring washer.
Cylindrical punching press:Cylindrical punching press is carried out using outer round punch, punching press, punching press are carried out according to the cylindrical size of spring washer The annulus for falling is exactly the blank of spring washer, the annulus for coming will be stamped out after the completion of punching press and is placed back into original position again.
Cylindrical punching press is carried out according to following processes:Outer round punch, the outer round punch pair below band are set above band The position answered sets ejection block, and spring is set below ejection block.During punching press, with the downward punching press of outer round punch, annulus is stamped out The spring blank of shape, the spring blank of the annular is forced into ejection block, and when outer round punch return, liftout spring is by liftout Block goes back to original position surely, thus the spring blank of the annular being stamped also just is pushed up go back to original position.
Dish-shaped face punching press:Dish-shaped face punching press is carried out with dish-shaped face punch-pin, the spring blank of annular is struck out into spring pad The shape of circle.
The shape of described dish-shaped face punch-pin matches with the shape of the spring washer to be produced.
Step 2:Aging strengthening model
The spring washer obtained to punching press carries out aging strengthening model.
Aging strengthening model is carried out using high-temperature vacuum heat-treatment furnace, vacuum level requirements are better than 1.33 × 10-2Pa。
Spring washer is heated first, firing rate is 150 DEG C/h~180 DEG C/h, when temperature reaches 710 DEG C~730 DEG C When stop heat up;Then 8~9h is incubated within the temperature range of 710 DEG C~730 DEG C;3rd step, with 35 DEG C/h~75 DEG C/h's Speed is lowered the temperature, until temperature is reduced to 610 DEG C~630 DEG C;4th step, within the temperature range of 610 DEG C~630 DEG C be incubated 8~ 9h;5th step, is lowered the temperature with the speed of 35 DEG C/h~75 DEG C/h, cools to 380 DEG C~420 DEG C;6th step, pours argon gas, argon gas Pressure is 0.08~0.09MPa, and natural cooling;7th step, when temperature is less than or equal to 120 DEG C, spring washer is placed on Room temperature environment natural cooling.
Step 3:Normal temperature swirling flows
5 normal temperature swirling flows are carried out, applies the load forces of 2100N to spring washer every time, kept for 30~60 seconds.
Step 4:Hot prestressing treatment
1) by spring washer on the screw rod, the fit clearance control of spring washer internal diameter and screw diameter 0.2~ 0.3mm, shipped quantity 5~15.During loading, the positive and negative relative ranks of spring washer are placed, and must not have continuous 2 to be all forward direction Or reversely.
2) pressure is applied to spring washer, it is ensured that the height of each spring shim is 0.93~0.95mm after applying pressure.
3) spring washer that will be installed is put into heat-treatment furnace, is heat-treated, and Technology for Heating Processing is:It is warming up to for the first time 300 DEG C, it is incubated 6h;Second intensification is carried out after being cooled to room temperature;250 DEG C are warming up to for the second time, are incubated 6h.
A specific example is given below:
The GH4169 of needs processing is alloy properties, and performance is as shown in table 1:
The GH4169 alloy property parameter lists of table 1
The size for needing the spring washer of processing is external diameter Φ 13mm, internal diameter Φ 8mm, thickness 0.8mm, free height 1.05mm~1.1mm, internal-external circle concentricity Φ 0.05mm, parallelism of two planes 0.06mm.
Above-mentioned alloy is processed into the band of width 22mm first, step punching press is pressed using 80T punch presses, positioned according to punching Hole, endoporus is rushed, cylindrical, the dish-shaped face of punching order is rushed and is automatically performed whole forming process.
The relevant parameter of the spring washer being stamped and formed out is as shown in table 2.
Disk spring detection data after the improvement of table 2
Numbering Free height/mm Axiality/mm The depth of parallelism/mm
B-1 1.07 0.0068 0.0125
B-2 1.07 0.0039 0.0089
B-3 1.07 0.0083 0.0157
B-4 1.07 0.0044 0.0182
Aging strengthening model is carried out using high-temperature vacuum heat-treatment furnace, and vacuum level requirements are better than 1.33 × 10-2Pa, specific heat Handling process is as follows:720 ± 10 DEG C are warming up to the speed of 150 DEG C/h, 8~9 hours is incubated, then be down to 55 DEG C/h speed 620 ± 10 DEG C, 8~9 hours are incubated, stove is cooled to 400 DEG C of backlash argon rapid cooling, and less than 120 DEG C are come out of the stove.
The parameter of spring washer is as shown in table 3 after swirling flows.
The swirling flows spring heights measured value of table 3
Result that pressure test obtains is carried out to spring shim as shown in Figure 4.During swirling flows, find for the first time When suppressing, spring washer has an apparent offset procedure, and under yield situation, spring produces larger plastic deformation, spring Force value is presented downward trend.Some second compressions afterwards, the yield limit of spring is significantly lifted, and surrender situation no longer occurs, when Spring also no longer produces plastic deformation by after 4-5 second compressions, it highly tends towards stability after spring stress.
After the completion of hot prestressing treatment, the performance of spring shim meets design requirement.
The punching press of Fig. 1 correspondence location holes, inner circle punching press, cylindrical punching press and dish-shaped face punching press.In Fig. 2, band is with workflow Also four different shapes that can be produced.

Claims (3)

1. a kind of spring washer manufacturing process, it is characterised in that comprise the steps:
Step one:Punching press
Punching press includes:Location hole punching press, inner circle punching press, cylindrical punching press and dish-shaped face punching press,
Step 2:Aging strengthening model
The spring washer obtained to punching press carries out aging strengthening model,
Aging strengthening model is carried out using high-temperature vacuum heat-treatment furnace, vacuum is better than 1.33 × 10-2Pa,
Spring washer is heated first, firing rate is 150 DEG C/h~180 DEG C/h, is stopped when temperature reaches 710 DEG C~730 DEG C Only heat up;Then 8~9h is incubated within the temperature range of 710 DEG C~730 DEG C;3rd step, with the speed of 35 DEG C/h~75 DEG C/h Cooling, until temperature is reduced to 610 DEG C~630 DEG C;4th step, is incubated 8~9h within the temperature range of 610 DEG C~630 DEG C;The Five steps, are lowered the temperature with the speed of 35 DEG C/h~75 DEG C/h, cool to 380 DEG C~420 DEG C;6th step, pours argon gas, and argon pressure is 0.08~0.09MPa, and cool down;7th step, when temperature is less than or equal to 120 DEG C, room temperature environment is placed on certainly by spring washer So cooling,
Step 3:Normal temperature swirling flows
5 normal temperature swirling flows are carried out, apply the load forces of 2100N to spring washer every time, kept for 30~60 seconds,
Step 4:Hot prestressing treatment
1) by spring washer on screw rod, spring washer internal diameter is controlled in 0.2~0.3mm with the fit clearance of screw diameter, Shipped quantity 5~15, during loading, the positive and negative relative ranks of spring washer are placed,
2) pressure is applied to spring washer, it is ensured that the height of each spring shim is 0.93~0.95mm after applying pressure,
3) spring washer that will be installed is put into heat-treatment furnace, is heat-treated, and Technology for Heating Processing is:It is warming up to 300 for the first time DEG C, it is incubated 6h;Second intensification is carried out after being cooled to room temperature;250 DEG C are warming up to for the second time, are incubated 6h.
2. a kind of spring washer manufacturing process as claimed in claim 1, it is characterised in that:In described step one,
Location hole punching press:In band two ends punching press location hole, location hole, for one group, band two is located at group location hole with two The distance between end, the other location hole of adjacent sets are identical,
The location hole is used for the positioning of subsequent technique,
Inner circle punching press:Inner circle punching press is carried out using endoporus drift, unnecessary circular portion punching press is fallen, form a circular hole, should Circular hole is the circular hole of spring washer,
Cylindrical punching press:Cylindrical punching press is carried out using outer round punch, punching press is carried out according to the cylindrical size of spring washer, what punching press was fallen Annulus is exactly the blank of spring washer, the annulus for coming will be stamped out after the completion of punching press and is placed back into original position again,
Dish-shaped face punching press:Dish-shaped face punching press is carried out with dish-shaped face punch-pin, the spring blank of annular is struck out into spring washer Shape, the shape of described dish-shaped face punch-pin matches with the shape of the spring washer to be produced.
3. a kind of spring washer manufacturing process as claimed in claim 2, it is characterised in that:The cylindrical punching press told is according to following Process is carried out:Outer round punch is set above band, the corresponding position setting ejection block of outer round punch below band, in liftout Block lower section sets spring, during punching press, with the downward punching press of outer round punch, stamps out the spring blank of annular, the bullet of the annular Spring blank is forced into ejection block, and when outer round punch return, ejection block is gone back to original position by liftout spring surely, thus be stamped The spring blank of annular is also just pushed up go back to original position.
CN201511031966.2A 2015-12-31 2015-12-31 A kind of spring washer manufacturing process Active CN106925663B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201511031966.2A CN106925663B (en) 2015-12-31 2015-12-31 A kind of spring washer manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201511031966.2A CN106925663B (en) 2015-12-31 2015-12-31 A kind of spring washer manufacturing process

Publications (2)

Publication Number Publication Date
CN106925663A true CN106925663A (en) 2017-07-07
CN106925663B CN106925663B (en) 2019-01-08

Family

ID=59444798

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201511031966.2A Active CN106925663B (en) 2015-12-31 2015-12-31 A kind of spring washer manufacturing process

Country Status (1)

Country Link
CN (1) CN106925663B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856427A (en) * 2018-07-11 2018-11-23 合肥苍旻自动化有限公司 A kind of washer manufacturing device in automated production
CN111485092A (en) * 2020-06-01 2020-08-04 嘉善永鑫紧固件有限公司 Elastic gasket and preparation method and application thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1284078A (en) * 1968-11-12 1972-08-02 Ind Sealants Ltd Sealing washer
CN101275601A (en) * 2008-05-12 2008-10-01 汪水方 Flexible washer and method of processing the same
JP2013164093A (en) * 2012-02-09 2013-08-22 Nsk Ltd Manufacturing method of race for thrust needle bearing
CN103447763A (en) * 2013-08-20 2013-12-18 宁波中斌紧固件制造有限公司 Scrapless washer forming process
CN104057002A (en) * 2014-05-26 2014-09-24 安徽红桥金属制造有限公司 Compression spring processing technology
CN104400356A (en) * 2014-11-24 2015-03-11 苏州市福迈精密机械有限公司 Machining process for steel gasket
CN104668907A (en) * 2015-01-30 2015-06-03 南通弘峰机电有限公司 Machining process for large spring pieces
CN204396665U (en) * 2014-12-30 2015-06-17 无锡爱博金属制品有限公司 A kind of processing mold of pad

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1284078A (en) * 1968-11-12 1972-08-02 Ind Sealants Ltd Sealing washer
CN101275601A (en) * 2008-05-12 2008-10-01 汪水方 Flexible washer and method of processing the same
JP2013164093A (en) * 2012-02-09 2013-08-22 Nsk Ltd Manufacturing method of race for thrust needle bearing
CN103447763A (en) * 2013-08-20 2013-12-18 宁波中斌紧固件制造有限公司 Scrapless washer forming process
CN104057002A (en) * 2014-05-26 2014-09-24 安徽红桥金属制造有限公司 Compression spring processing technology
CN104400356A (en) * 2014-11-24 2015-03-11 苏州市福迈精密机械有限公司 Machining process for steel gasket
CN204396665U (en) * 2014-12-30 2015-06-17 无锡爱博金属制品有限公司 A kind of processing mold of pad
CN104668907A (en) * 2015-01-30 2015-06-03 南通弘峰机电有限公司 Machining process for large spring pieces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘春燕等: "65Mn弹簧垫圈热处理工艺", 《机械》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856427A (en) * 2018-07-11 2018-11-23 合肥苍旻自动化有限公司 A kind of washer manufacturing device in automated production
CN111485092A (en) * 2020-06-01 2020-08-04 嘉善永鑫紧固件有限公司 Elastic gasket and preparation method and application thereof
CN111485092B (en) * 2020-06-01 2021-04-30 嘉善永鑫紧固件有限公司 Elastic gasket and preparation method and application thereof

Also Published As

Publication number Publication date
CN106925663B (en) 2019-01-08

Similar Documents

Publication Publication Date Title
CN103381441B (en) Hot stamping formation processing method for thin-walled titanium alloy sealing head
CN106925663B (en) A kind of spring washer manufacturing process
CN103862053A (en) Metal powder tube forming die and metal powder tube preparation method
CN102489943A (en) Method for manufacturing waved springs
CN108435999B (en) A kind of titanium alloy ring forging anti-deformation forging technology
CN105619032B (en) Method for machining disc spring
CN103769454B (en) A kind of hot forming method of thin brilliant TC21 titanium alloy plate
CN107150212A (en) A kind of forging technology of auto parts connecting rod blank
CN205046159U (en) Tool equipment who uses among valve rod heat treatment process
CN109604941B (en) Manufacturing method of ЭП 578 alloy material wave spring
CN105927726A (en) Disc type star wheel piece for single-screw compressor and forming process of disc type star wheel piece
CN106583592B (en) A kind of preparation method of high resiliency spiral retaining ring
CN202278134U (en) Superplastic forming system for titanium-alloy turbine blades
CN202037206U (en) Flattening device of thin-wall parts
KR101504418B1 (en) Deep drawing method of stainless steel for preventing breakage
CN104998965A (en) Anode plate hanging hook machining method of electric dust remover
CN102773314A (en) Shape-correcting method for cone-shaped cylinder after deformation of heat treatment for steam generator of nuclear power equipment
CN102829092B (en) The fit drawing die of roller bearing Integral retainer
CN204396629U (en) A kind of special-shaped snap ring loose-piece type school shape mould
CN108707738A (en) A kind of shaping jig and forming method of spring collar
CN205236928U (en) Accurate dabber reaming device of cylinder forging
CN111644556B (en) Manufacturing method of Ti64 alloy casing forging inclined-plane ring blank
CN109047497A (en) Disk spring hot pressing one-step moulding method
CN102397977A (en) Superplastic forming method of titanium alloy turbine blade with adoption of silicon carbide rod heating method
JP2016144814A (en) Hot forging mold device and hot forging method using the same

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
TR01 Transfer of patent right

Effective date of registration: 20200521

Address after: 100032 No.9 Huayuan street, Xicheng District, Beijing

Patentee after: China Atomic Energy Industry Co., Ltd

Address before: 273 mailbox 644000, Sichuan City, Yibin Province

Patentee before: CNNC JIANZHONG NUCLEAR FUEL Co.,Ltd.

TR01 Transfer of patent right