CN105499477B - Core one-level explosive valve shears cap forging technology - Google Patents
Core one-level explosive valve shears cap forging technology Download PDFInfo
- Publication number
- CN105499477B CN105499477B CN201510958488.3A CN201510958488A CN105499477B CN 105499477 B CN105499477 B CN 105499477B CN 201510958488 A CN201510958488 A CN 201510958488A CN 105499477 B CN105499477 B CN 105499477B
- Authority
- CN
- China
- Prior art keywords
- forging
- cap
- raw material
- heating
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B21K1/20—Making machine elements valve parts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Core one-level explosive valve shears cap forging technology, it is characterised in that including processing step in detail below：Shearing cap separation after a, raw material blanking b, raw material heating c, forging deformation process d, cooling e, finished product and explosion.It is the forging technology that high-temperature nickel-base alloy material shears cap for material, has filled up technological gap of the nickel-base alloy in forging field, the shearing cap forging metal streamline forged is continuous, metallographic structure is uniform, and mechanics row can be up to standard；Raw material blanking processing avoids occurring chink during forging, and the selection of charging temperature is avoided because material thermal conductivity difference generation thermal stress is excessive so that being ftractureed when forging during heating.
Description
Technical field
The invention belongs to the exploitation of the FMT of nuclear power valve part and manufacturing field, core one is concretely related to
Level explosion valve member high temperature alloy shears the forging technology of cap.
Background technology
Core one-level explosive valve project is extremely strict to the performance requirement of product, and it is core one-level explosive valve to shear cap
Core component in product, the inside and outside quality to product suffers from particular/special requirement, therefore forging performance directly affects whole production
The performance of product.The production process of cap is sheared approximately through processes such as raw material disposal, heating, forging, cooling, shapings, cap is sheared
Special high-temperature nickel-base alloy material, i.e. INCONEL 690 are used, this material at home and abroad can without ripe forging technology
To use for reference, it is impossible to ensure that forging performance meets the requirement of explosive valve project, this alloy material is domestic and international in forging field
Blanking technique.
The content of the invention
In order to make up the defect of above-mentioned forging blank FMT, cut it is an object of the invention to provide core one-level explosive valve
Cap forging technology is cut, technology controlling and process is carried out in raw material, heating, forging, cooling aspects, it is continuous, golden that forging goes out metal streamline
The shearing cap forging that phase constitution is uniform, mechanical property is up to standard, performance 100% reaches the requirement of core one-level explosive valve project, and fills up
Technological gap of the high-temperature nickel-base alloy in forging field.
To achieve these goals, the technical solution adopted in the present invention is：Core one-level explosive valve shears cap forging technology,
It is characterized in that including processing step in detail below：
1st, raw material blanking
Blanking is carried out according to required size, into required shape material section after the completion of blanking, material section end corner angle are subjected to blunt；
The end corner angle degree of falling obtuse angle R is 5%-the 10% of material section diameter；
2nd, raw material are heated
1）Heat stove heat pre-treatment
Using chamber-type heating furnace, ferritic austenitic stainless steels plate, institute need to be free of by place mat in stove before shove charge heating
Stainless steel plate is stated for 0Cr19Ni39 cast steel cushion blocks, size is 1000mm × 1000mm × 50mm.
2）Shove charge
Raw material are subjected to shove charge when furnace temp is not more than 500 DEG C；
3）Heating
800 DEG C of insulations are warming up to≤60 DEG C/H, soaking time be every millimeter -45 seconds 30 seconds；After 800 DEG C of insulations, to add
Hot speed is 150 DEG C -200 DEG C/H, is heated rapidly to 1020 ~ 1050 DEG C of insulations, soaking time for every millimeter -45 seconds 30 seconds；
After 1020 ~ 1050 DEG C of insulations, it is heated to 1100 DEG C with equipment maximum heating power and comes out of the stove, the maximum heating speed of equipment
Rate is 200 ~ 250 DEG C/h.
4）Come out of the stove
The raw material heated must be transferred to the specified station of forging in 60s.
3rd, forging deformation process
1）Jumping-up
2）Forge：Including slowly forging and quickly forging；
From 10 tons of free forging electrohydraulic hammers, preceding 5 hammer is slowly forged, and forges energy for 20%-30%, base；After base
Raw material be put into shaping mould, progress quickly forges shaping, and it is that 100% all can measure to forge energy.
3）Rush blind hole；
4）Turnover mould forging depanning；
5）Product Light deformation is repaired；
Forging energy is controlled by required deflection；
4th, cool down
Pave air cooling mode and carry out cooling treatment；
5th, cap separation is sheared after finished product and explosion.
The beneficial effects of the invention are as follows：
It is the forging technology that high-temperature nickel-base alloy material shears cap for material, has filled up nickel-base alloy in forging field
Technological gap, the shearing cap forging metal streamline that forges is continuous, metallographic structure is uniform, and mechanics row can be up to standard；Raw material blanking
Processing avoid forging when occur chink, during heating the selection of charging temperature avoid because material thermal conductivity difference produce thermal stress it is excessive with
Ftractureed when cause is forged；Quickly rapidity of blow ensures that forging receives enough hitting powers after forging deformation process is first slow simultaneously
Center portion forging is saturating；It is to make uniform forging cooling, even tissue and performance uniform using air cooling type of cooling purpose is paved, because without phase transformation
The cooled slow crystal grain of Austenitic alloy material is avoided to grow up.
Brief description of the drawings
Fig. 1 is workpiece figure before present invention shearing cap forging deformation process jumping-up.
Fig. 2 is present invention shearing cap forging deformation process jumping-up figure.
Fig. 3 is to forge structure chart in forging deformation process shaping tire.
Fig. 4 is that forging deformation process shearing cap rushes blind hole structure figure.
Fig. 5 is to take out forging drawing after forging deformation process is overturn.
Fig. 6 is forging deformation process shearing cap trimming structure chart.
Embodiment
With reference to specific embodiment and accompanying drawing, the present invention is described in detail.
Core one-level explosive valve shears cap forging technology, it is characterised in that including processing step in detail below：
1st, raw material blanking
Blanking is carried out according to required size, into required shape material section after the completion of blanking, material section end corner angle are subjected to blunt；
The end corner angle degree of falling obtuse angle R is 5%-the 10% of material section diameter；So that 18 cun are sheared cap as an example, blank size is Ф 380
× 1158, end-beveling R30, round steel or square steel.
2nd, raw material are heated
1）Heat stove heat pre-treatment
Using chamber-type heating furnace, ferritic austenitic stainless steels need to be free of by place mat place mat in stove before shove charge heating
Plate, uses material for 0Cr19Ni39 cast steel cushion blocks, and size is 1000mm × 1000mm × 50mm,
This material is Austenitic alloy；Avoid directly contacting with ferrite material so that organizing pollution, it is necessary to stove a heatable brick bed
Isolation.
2 } shove charge
Raw material are subjected to shove charge when furnace temp is not more than 500 DEG C；Avoid and avoid therefore plant material thermal conductivity
Can be poor, the thermal stress that raw material are produced is excessive so that being ftractureed when forging.
3）Heating
800 DEG C of insulations are warming up to≤60 DEG C/H, soaking time be every millimeter -45 seconds 30 seconds；After 800 DEG C of insulations, to add
Hot speed is 150 DEG C -200 DEG C/H, is heated rapidly to 1020 ~ 1050 DEG C of insulations, soaking time for every millimeter -45 seconds 30 seconds；
After 1020 ~ 1050 DEG C of insulations, with equipment maximum heating power（The maximum heating speed of equipment is 200 ~ 250 DEG C/h）
1100 DEG C are heated to come out of the stove.The temperature of such a material is higher than after 1100 DEG C, and crystal grain can grow up rapidly, so that the mechanical property of forging
It is poor, and this material is that Austenitic tissue can not be changed by heat treatment mode, therefore heating-up temperature is no more than 1100 DEG C.
4）Come out of the stove
Must the interior specified stations that the raw material heated are transferred to forging of 60s, maximum possible reduction temperature loss
3rd, forging deformation process
1）Jumping-up
2）Forge：Including slowly forging and quickly forging；
From 10 tons of free forging electrohydraulic hammers, high temperature alloy still has higher intensity and relatively low plasticity at high temperature,
Its deformation resistance is 3 ~ 5 times of ordinary carbon steel, therefore 1 ton of high temperature alloy forging has selected 10 tons of Single arms, is become meeting
The colleague of shape amount ensures that center portion forging is saturating.
Preceding 5 hammer is slowly forged, and forges energy for 20%-30%, it is therefore an objective to scale removal, and make metal with small deformation
The defects such as internal dislocation enter the optimum position of plastic deformation, are that ensuing large deformation is prepared, the change of this process temperature
50 DEG C of ＜ is wanted, is molded, therefore class material at high temperature plasticity is poor, knuckle must be increased, in order to metal flow, make forging smooth
Shaping；Raw material after base are put into shaping mould, are quickly forged, and forging energy all can be measured for 100%, it is ensured that forging is received
To enough hitting power center portion forgings thoroughly,.
3）Rush blind hole；Rushing blind hole helps to be full of die cavity at Metal Deformation concentration, and this material cost is high, and rushing blind hole can be with
Save certain material cost.
4）Turnover mould forging depanning
5）Product Light deformation is repaired
Forging energy is controlled by required deflection
4th, cool down
High-temperature nickel-base alloy material is because without phase transformation, slow cooling not only reduces production efficiency, and Slow cooling can make material matrix
Coarse grains, mechanical property is deteriorated, and paves cooling uniformly, therefore must be placed on sky by the way of air cooling is paved after forging
Air-flow leads to particularly preferred place cooling.）
5th, cap separation is sheared after finished product and explosion.
Claims (2)
1. core one-level explosive valve shears cap forging technology, it is characterised in that including processing step in detail below：
A, raw material blanking；
Blanking is carried out according to required size, into required shape material section after the completion of blanking, material section end corner angle are subjected to blunt；
B, raw material heating；
1）Heat stove heat pre-treatment；
Using chamber-type heating furnace, ferritic austenitic stainless steels plate need to be free of by place mat in stove before shove charge heating；
2）Shove charge；
Raw material are subjected to shove charge when furnace temp is not more than 500 DEG C；
3）Heating；
800 DEG C of insulations are warming up to≤60 DEG C/H, soaking time be every millimeter -45 seconds 30 seconds；After 800 DEG C of insulations, to heat speed
Rate is 150 DEG C -200 DEG C/H, is heated rapidly to 1020 ~ 1050 DEG C of insulations, soaking time for every millimeter -45 seconds 30 seconds；1020~
After 1050 DEG C of insulations, it is heated to 1100 DEG C with equipment maximum heating power and comes out of the stove, the maximum heating speed of equipment is 200 ~ 250
℃/h；
4）Come out of the stove；
The raw material heated must be transferred to the specified station of forging in 60s；
C, forging deformation process；
1）Jumping-up；
2）Forge：Including slowly forging and quickly forging；
From 10 tons of free forging electrohydraulic hammers, preceding 5 hammer is slowly forged, and forges energy for 20%-30%；Raw material after base are put
Enter in shaping mould, quickly forged, forging energy all can measure for 100%；
3）Rush blind hole；
4）Turnover mould forging depanning；
5）Product Light deformation is repaired；
Forging energy is controlled by required deflection；
D, cooling；
Pave air cooling mode and carry out cooling treatment；
Cap separation is sheared after e, finished product and explosion；The end corner angle degree of the falling obtuse angle R is 5%-the 10% of material section diameter.
2. core one-level explosive valve according to claim 1 shears cap forging technology, it is characterised in that the stainless steel plate is
0Cr19Ni39 cast steel cushion blocks, size is 1000mm × 1000mm × 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958488.3A CN105499477B (en) | 2016-03-04 | 2016-03-04 | Core one-level explosive valve shears cap forging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958488.3A CN105499477B (en) | 2016-03-04 | 2016-03-04 | Core one-level explosive valve shears cap forging technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105499477A CN105499477A (en) | 2016-04-20 |
| CN105499477B true CN105499477B (en) | 2017-10-24 |
Family
ID=55707992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958488.3A Active CN105499477B (en) | 2016-03-04 | 2016-03-04 | Core one-level explosive valve shears cap forging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105499477B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087183B1 (en) * | 1982-02-18 | 1987-04-29 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Method to produce a fine-grained object as a finished article consisting of an austenitic, high-temperature strength nickel-base alloy |
| CN101332484A (en) * | 2007-06-25 | 2008-12-31 | 宝山钢铁股份有限公司 | Die forging method of high-temperature alloy |
| CN102019534A (en) * | 2009-09-22 | 2011-04-20 | 上海腾辉锻造有限公司 | Manufacturing method of valve part |
| CN102357633A (en) * | 2011-09-27 | 2012-02-22 | 上海宏钢电站设备铸锻有限公司 | Method for manufacturing nickel-based high-temperature alloy forge piece |
| CN102974741A (en) * | 2012-08-17 | 2013-03-20 | 大连大高阀门股份有限公司 | Forging method of valve cover part of valve |
| CN103071753A (en) * | 2012-08-22 | 2013-05-01 | 昌利锻造有限公司 | Forging method of ball valve stem |
| CN103341580A (en) * | 2013-07-18 | 2013-10-09 | 东方电气集团东方汽轮机有限公司 | Free forging method for medium-pressure combined regulation valve stem workblank of supercritical turbine |
| JP5395516B2 (en) * | 2009-05-29 | 2014-01-22 | 株式会社東芝 | Nickel-based alloy for steam turbine turbine rotor and steam turbine turbine rotor |
-
2016
- 2016-03-04 CN CN201510958488.3A patent/CN105499477B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087183B1 (en) * | 1982-02-18 | 1987-04-29 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Method to produce a fine-grained object as a finished article consisting of an austenitic, high-temperature strength nickel-base alloy |
| CN101332484A (en) * | 2007-06-25 | 2008-12-31 | 宝山钢铁股份有限公司 | Die forging method of high-temperature alloy |
| JP5395516B2 (en) * | 2009-05-29 | 2014-01-22 | 株式会社東芝 | Nickel-based alloy for steam turbine turbine rotor and steam turbine turbine rotor |
| CN102019534A (en) * | 2009-09-22 | 2011-04-20 | 上海腾辉锻造有限公司 | Manufacturing method of valve part |
| CN102357633A (en) * | 2011-09-27 | 2012-02-22 | 上海宏钢电站设备铸锻有限公司 | Method for manufacturing nickel-based high-temperature alloy forge piece |
| CN102974741A (en) * | 2012-08-17 | 2013-03-20 | 大连大高阀门股份有限公司 | Forging method of valve cover part of valve |
| CN103071753A (en) * | 2012-08-22 | 2013-05-01 | 昌利锻造有限公司 | Forging method of ball valve stem |
| CN103341580A (en) * | 2013-07-18 | 2013-10-09 | 东方电气集团东方汽轮机有限公司 | Free forging method for medium-pressure combined regulation valve stem workblank of supercritical turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105499477A (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104745780B (en) | Production method for forging and thermally treating Cr12MoV steel | |
| CN100436045C (en) | Manufacturing method for annular forging piece | |
| CN105252230B (en) | Machining process for inclined tee | |
| CN102764838A (en) | Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material | |
| CN105414428A (en) | Forging technique for cake forgings | |
| CN108555223B (en) | A kind of GH901 alloy diskware manufacturing method | |
| CN109590417A (en) | A kind of forging technology and equipment of high-temperature-resistant high-pressure-resistant stainless steel ring | |
| CN103071753B (en) | Forging method of ball valve stem | |
| CN104476145B (en) | The manufacture method of pad | |
| CN102049669B (en) | Production technology for left valve barrel of colliery three-purposed hydraulic valve | |
| CN102776337A (en) | Press quenching and processing method for 30 MnCrNiMo armored steel plate part | |
| CN109396759B (en) | Forging-rolling combined manufacturing method for 980 steel large-diameter cylinder for deep submergence | |
| CN106134379B (en) | Nearly alpha titanium alloy isothermal local loads transition region structure property control method | |
| CN109663875B (en) | Forging process for die pressing groove of groove ring | |
| CN109622842A (en) | A kind of forging method and device of stock forging control die forging warpage | |
| US20090139092A1 (en) | Method and manufacturing of ball bearing rings | |
| CN111250639B (en) | Blank forming method for GH4169 large-sized special-shaped ring forging | |
| CN105499477B (en) | Core one-level explosive valve shears cap forging technology | |
| CN104032115A (en) | Thermal treatment method for reducing secondary gear ring nitrogenized deformation | |
| CN100554441C (en) | Thin brilliant strength-toughening treatment process after the forging of generating set usefulness 1Mn18Cr18N 18 N steel guard ring forging | |
| CN111100976A (en) | Heat treatment process for preventing cracking of steel for glass mold after forging | |
| CN100487140C (en) | Method for heat-treating steel material | |
| CN114635023B (en) | Production method of martensitic heat-resistant steel blank | |
| CN102080147A (en) | Process for forging cold working die and method for quenching at low temperature by using forging waste heat | |
| CN108823375A (en) | A kind of bearing ring residual temperature annealing process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20230717 Address after: Dalian Dagao Valve Co., Ltd., 272 Yaojia Road, Ganjingzi District, Dalian City, Liaoning Province Patentee after: DALIAN DV VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: Dalian Dagao Valve Co., Ltd., 272 Yaojia Road, Ganjingzi District, Dalian City, Liaoning Province Patentee before: DALIAN DV VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right |