CN108772480A - A kind of double flaring conduits and its flaring die, manufacturing process - Google Patents
A kind of double flaring conduits and its flaring die, manufacturing process Download PDFInfo
- Publication number
- CN108772480A CN108772480A CN201810683633.5A CN201810683633A CN108772480A CN 108772480 A CN108772480 A CN 108772480A CN 201810683633 A CN201810683633 A CN 201810683633A CN 108772480 A CN108772480 A CN 108772480A
- Authority
- CN
- China
- Prior art keywords
- flaring
- double
- punch
- pin
- varus
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 241000469816 Varus Species 0.000 claims abstract description 62
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 18
- 238000002224 dissection Methods 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 238000004080 punching Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000033083 heart process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/10—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws working inwardly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/021—Enlarging by means of tube-flaring hand tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention discloses the manufacturing process of a kind of double flaring conduits, a kind of flaring die of double flaring conduits and double flaring conduits.The flaring area of double flaring conduits is double-layer flaring area.Flaring die includes single flaring die, varus mold and double flaring dies；Single flaring die includes single flaring punch-pin, single flaring cavity plate, lengthens mould and chassis；Varus mold includes varus punch-pin, varus cavity plate, lengthens mould and chassis；Double flaring dies include double flaring punch-pin, double flaring cavity plates, lengthen mould and chassis.The present invention proposes the new model of the double flaring connections of large-diameter guide pipe end, and proposes specific manufacturing process, and air-tightness is good, fatigue behaviour is good, and reliability is high；Test indicate that performance is better than single flaring type of attachment；Meanwhile the connection type can not change existing type of attachment, alternative cost is low；Solve the problems such as fitting surface surface quality requirements occurred in traditional large diameter single flaring conduit connection are high, and evaporating, emitting, dripping or leaking of liquid or gas is serious.
Description
Technical field
The invention belongs to catheter fabrication fields, and in particular to the pipe end constructions and shaping dies of conduit, manufacturing process.
Background technology
Conduit is a kind of vital part having a large capacity and a wide range in aircraft, and the safety and reliability of pipe-line system directly influences
The overall performance and safety of aircraft, and this is closely related with the form and switching performance of pipe fitting.In recent years, in order to further carry
Aeroplane performance is risen, liquid cooling pipe-line system is increased.The liquid cooling function of the pipe-line system, it is desirable that its pipe fitting must satisfy harsh
Otherwise sealing requirements just lose the meaning of liquid cooling, and single flaring conduit, the especially diameter of tradition is more than the major diameter of 20mm
Conduit, connection evaporating, emitting, dripping or leaking of liquid or gas is serious, cannot meet the needs of aircraft pipe-line system development.
Invention content
It is flared the fitting surface surface quality requirements height occurred in conduit connection to solve traditional large diameter single, evaporating, emitting, dripping or leaking of liquid or gas is tight
The problems such as weight, the present invention proposes a kind of new model of the double flaring connections of large-diameter guide pipe end, and proposes the double flarings of conduit
Specific manufacturing process.
A kind of double flaring conduits of the present invention, including tube body and flaring area, which is characterized in that the flaring area is double-layer flaring
Area.
The double-layer flaring area has the turnover layer of flaring area front end fold inward.
A kind of flaring die of double flaring conduits；Including single flaring die, varus mold and double flaring dies；Single flaring die
Tool includes single flaring punch-pin, single flaring cavity plate, lengthens mould and chassis；Varus mold includes varus punch-pin, varus cavity plate, lengthens mould
The chassis and；Double flaring dies include double flaring punch-pin, double flaring cavity plates, lengthen mould and chassis.
The chassis, lengthening mould and single flaring cavity plate are from bottom to top installed and lower die, list are used as to be flared convex with one heart successively
Mould is as upper mold and concentric with lower die；
The chassis, lengthening mould and varus cavity plate are from bottom to top installed and are used as lower die with one heart successively, and varus punch-pin is as upper
Mould and concentric with lower die；
The chassis, lengthening mould and double flaring cavity plates are from bottom to top installed and lower die, double flaring punch-pin are used as to make with one heart successively
It is for upper mold and concentric with lower die.
Single flaring cavity plate of the list flaring die is equipped with has flaring with the matched endoporus of catheter outer diameter, endoporus upper end
The step surface of area, flaring area and endoporus transition is the conical surface, and semi-cone angle is 33 °；The outer diameter of single flaring punch-pin and single flaring cavity plate
Flaring area matches, and single lower end for being flared punch-pin has and the matched conical surface of step surface.
The varus mold is that pipe axis presses varus mold, and the varus cavity plate of varus mold is equipped with matched with catheter outer diameter
Endoporus, endoporus upper end are the widened conical surface, and semi-cone angle is 33 °, and maximum gauge is flared area's diameter slightly larger than single flaring cavity plate；It is described
Varus punch-pin be fillet mould, radius of corner 4mm, fillet mode diameter is slightly larger than single flaring cavity plate；On varus punch-pin lower face
Equipped with pit, the outer diameter of a diameter of single flaring punch-pin of pit, the radius of corner of depth 4mm, pit are 4mm；
Double flaring cavity plates of double flaring dies be equipped with the matched endoporus of catheter outer diameter, endoporus upper end be widened cone
Face, semi-cone angle are 33 °, and the maximum gauge of double flaring cavity plates is slightly larger than the double flaring maximum gauges finally shaped.Double flaring punch-pin
Lower end is the conical surface, and conical surface lower end diameter is less than catheter diameter, and conical surface upper end diameter is more than the double flaring maximum gauges finally shaped,
Semi-cone angle is 37 °.
Single flaring cavity plate, varus cavity plate, double flaring cavity plates and lengthening mould are all dissection type mold, are completed in forming
After facilitate taking-up conduit.
It is provided with stomata on the chassis.
Required double flaring catheter lengths can be obtained by adjusting the length for lengthening mould and accordingly changing pipe length.
A kind of flared method of double flaring conduits, step are：
S1 is by the tube end flares of conduit；
S2 is by the front end fold inward of tube end flares part；
The part of pipe end front end fold inward is not extremely turned down part with tube end flares part and is bonded by S3.
In the step S1, when by the tube end flares of conduit, it is flared as tapered region and cylindrical circular fold area.
In the step S1：Need first by chassis, lengthen mould and single flaring cavity plate from bottom to top device under testing stand
On mould, and ensure concentric, then single flaring punch-pin be screwed into testing stand upper mold, be then put into pipe, and tighten lengthen mould and
Nut on single flaring cavity plate clamps pipe, then to the heart, single length feed for being flared punch-pin.
In the step S2：By in S1 steps single flaring punch-pin, that single flaring cavity plate replaces with varus punch-pin, varus is recessed
Mould, and the intermediate pipe that first step shapes is attached in the cavity plate of combination, after the heart, varus punch-pin length feed.
In the step S3：Varus punch-pin, varus cavity plate in S2 steps is unloaded and loads onto double flaring punch-pin, double flarings
Cavity plate, and tighten and lengthen mould and double flaring cavity plates and clamp pipe, after the heart, double flaring punch-pin feed forming along longitudinal direction.
The present invention realize the double enlarging jointing constructions of pipe end for diameter more than the large-diameter guide of 20mm proposed and
Manufacturing process, air-tightness is good, fatigue behaviour is good, and reliability is high；It is surveyed through airtight, pressure-resistant, pressure fluctuation, vibrating fatigue, thermal shock
It takes temperature bright, performance is better than single flaring type of attachment；Meanwhile the connection type can not change existing single flaring conduit connection structure
Form is suitable for replacing existing single flaring conduit, and alternative cost is low；Occur in the traditional large diameter single flaring conduit connection of solution
The problems such as fitting surface surface quality requirements are high, and evaporating, emitting, dripping or leaking of liquid or gas is serious.
Description of the drawings
The bis- flared tube ends structural schematic diagrams of Fig. 1
The bis- flaring forming technologies of Fig. 2
Fig. 3 punching press lists are flared schematic diagram
Fig. 4 pipe axis presses varus schematic diagram
The double flaring schematic diagrames of Fig. 5 punching presses
In figure：1. 2. single flaring cavity plate 3. varus punch-pin flaring punch-pin 6. pairs of 4. varus cavity plate 5. pairs of single flaring punch-pin
It is flared cavity plate 7. and lengthens 8. chassis of mould, 9. flaring 11. turnover layer of area of conduit 10..
Specific implementation mode：
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
See that Fig. 1, a kind of double flaring conduits of the invention, including tube body 9 and flaring area 10, the flaring area are double-layer flaring area.
The double-layer flaring area has the turnover layer 11 of flaring area front end fold inward.
Embodiment 2
See Fig. 3, Fig. 4, Fig. 5, a kind of flaring die of double flaring conduits, including single flaring die, varus mold and double flaring dies
Tool；Single flaring die includes single flaring punch-pin 1, single flaring cavity plate 2, lengthens mould 7 and chassis 8；Varus mold includes varus punch-pin
3, varus cavity plate 4, lengthening mould 7 and chassis 8；Double flaring dies include double flaring punch-pin 5, double flaring cavity plates 6, lengthen mould 7 and bottom
Disk 8.
Chassis 8, lengthening mould 7 and single flaring cavity plate 2 are from bottom to top installed and are used as lower die with one heart successively, single to be flared convex 1
Mould is as upper mold and concentric with lower die.
Embodiment 3
See that Fig. 2 to Fig. 5, the present embodiment are a kind of processes for shaping the double flaring conduits of major diameter.Pipe fitting is 5A02
Aluminium-alloy pipe, conduit diameter 34mm, wall thickness 1mm, flaring area's outer layer semi-cone angle are 33 degree, and internal layer is 37 degree, maximum expanding
Locate a diameter of 44mm, catheter tube 9 is 1mm with flaring 10 radius of area.
Double flaring forming technologies mechanism used in the present embodiment includes mainly single flaring punch-pin 1, single to be flared cavity plate 2, varus
Punch-pin 3, varus cavity plate 4, double flaring punch-pin 5, double flaring cavity plates 6 lengthen mould 7, chassis 8 etc..Wherein three cavity plates 2,4,6 and
It lengthens mould 7 all to design for dissection type, considers that small bulging can be generated due to the flowing of material in pipe forming process,
Dissection type mold facilitates taking-up conduit after the completion of forming.The chassis 8 is provided with stomata, in order to avoid the gas in forming process
Pressure generates obstruction to punch-pin length feed.The varus punch-pin is fillet mould.
Embodiment 4
Single flaring cavity plate 2 of single flaring die is equipped with to be had flaring area, expands with the matched endoporus of 9 outer diameter of conduit, endoporus upper end
The step surface of mouth region and endoporus transition is the conical surface, and semi-cone angle is 33 °；The flaring of the outer diameter of single flaring punch-pin 1 and single flaring cavity plate 2
Area matches, and single lower end for being flared punch-pin 1 has and the matched conical surface of step surface.
Varus mold is that pipe axis presses varus mold, and the varus cavity plate of varus mold is equipped with matched interior with catheter outer diameter
Hole, endoporus upper end are the widened conical surface, and semi-cone angle is 33 °, and maximum gauge is flared area's diameter slightly larger than single flaring cavity plate；Described
Varus punch-pin is fillet mould, and radius of corner 4mm, fillet mode diameter is slightly larger than single flaring cavity plate；Varus punch-pin is set on lower face
There is pit, the outer diameter of a diameter of single flaring punch-pin of pit, the radius of corner of depth 4mm, pit are 4mm.
Double flaring cavity plates 6 of double flaring dies be equipped with the matched endoporus of catheter outer diameter, endoporus upper end be widened cone
Face, semi-cone angle are 33 °, and the maximum gauge of double flaring cavity plates 6 is slightly larger than the double flaring maximum gauges finally shaped.Double flaring punch-pin
5 lower ends are the conical surface, and conical surface lower end diameter is less than catheter diameter, and it is maximum straight that conical surface upper end diameter is more than the double flarings finally shaped
Diameter, semi-cone angle are 37 °.
Embodiment 5
A kind of process for shaping the double flaring conduits of major diameter proposed by the invention includes three steps：First step
It is flared process for punching press list, second step is pipe axis pressure varus process, and third step is the double flaring processes of punching press.Wherein：
First step is that punching press list is flared forming process.In this step, it needs the lengthening mould 7 being placed on chassis 8 first,
Single flaring cavity plate 2 is placed on again and is lengthened on mould 7, pipe is then put among the cavity plate of combination and is tightened cavity plate and lengthens mould
On screw to ensure punch-pin and pipe before forming to the heart later by single flaring punch-pin 1 in upper mold, by manually slowly
Length feed punch-pin, while rotating and shaking cavity plate and pipe, until punch-pin is bonded with pipe and can only rotating cavity die completely
And cannot shake, heart process is completed, then by the program of setting, punch-pin is fed in an axial direction.
Second step is that pipe axis presses varus forming process.Punch and matrix in first step need to be replaced with pipe axis by the process
Pressure varus punch-pin 3, varus cavity plate 4 are simultaneously attached to intermediate pipe formed thereby in combined die, after being completed to the heart, pipe axis pressure
Varus punch-pin is fed in an axial direction according to setting program.
Third step is the double flaring forming processes of punching press.Pipe axis in second step need to be pressed that varus is convex, varus by the process
Cavity plate replaces with double flaring punch-pin 5, double flaring cavity plates 6, and processing method is similar with first step, is equally punch-pin according to setting
Program is fed in an axial direction.
Claims (13)
1. a kind of double flaring conduits, including tube body and flaring area, which is characterized in that the flaring area is double-layer flaring area.
2. a kind of double flaring conduits according to claim 1, which is characterized in that before the double-layer flaring area has flaring area
Hold the turnover layer of fold inward.
3. a kind of flaring die of double flaring conduits, which is characterized in that including single flaring die, varus mold and double flaring dies
Tool；The list flaring die includes single flaring punch-pin, single flaring cavity plate, lengthens mould and chassis；The varus mold includes varus
Punch-pin, lengthens mould and chassis at varus cavity plate；Double flaring dies include double flaring punch-pin, double flaring cavity plates, lengthen mould and bottom
Disk；Lower die is from bottom to top installed and are used as with one heart to chassis, lengthening mould and single flaring cavity plate successively, and single flaring punch-pin is as upper mold
And it is concentric with lower die；Chassis, lengthening mould and varus cavity plate are from bottom to top installed and lower die, varus punch-pin are used as to make with one heart successively
It is for upper mold and concentric with lower die；Chassis, lengthening mould and double flaring cavity plates are from bottom to top installed and are used as lower die with one heart successively, double
It is as upper mold and concentric with lower die to be flared punch-pin.
4. a kind of pipe end mold of double flaring conduits according to claim 3, which is characterized in that the list flaring die
Single flaring cavity plate is equipped with to be had flaring area, is flared the platform in area and endoporus transition with the matched endoporus of catheter outer diameter, endoporus upper end
Terrace is the conical surface；The outer diameter of single flaring punch-pin is matched with the flaring area of single flaring cavity plate, single lower end for being flared punch-pin with
The matched conical surface of step surface.
5. a kind of pipe end mold of double flaring conduits according to claim 3, which is characterized in that the varus mold is pipe
Axis presses varus mold, the varus cavity plate of varus mold be equipped with the matched endoporus of catheter outer diameter, endoporus upper end is widened cone
Face, maximum gauge are flared area's diameter slightly larger than single flaring cavity plate；The varus punch-pin is fillet mould, and fillet mode diameter is slightly larger than
Single flaring cavity plate；Punch-pin lower face is equipped with pit, and the outer diameter of a diameter of single flaring punch-pin of pit, the bottom of pit is circle
Angle.
6. a kind of flaring die of double flaring conduits according to claim 3, which is characterized in that double flaring dies
Double flaring cavity plates be equipped with the matched endoporus of catheter outer diameter, endoporus upper end be the widened conical surface；The maximum gauge of cavity plate is bigger
In the double flaring maximum gauges finally shaped；Double flaring punch-pin lower ends are the conical surface, and conical surface lower end diameter is less than catheter diameter, the conical surface
Upper end diameter is more than the double flaring maximum gauges finally shaped.
7. a kind of flaring die of double flaring conduits according to claim 3, which is characterized in that single flaring cavity plate,
Varus cavity plate, double flaring cavity plates and lengthening mould are all dissection type mold.
8. a kind of flaring die of double flaring conduits according to claim 3, which is characterized in that opened on the chassis
There is stomata.
9. a kind of flared method of double flaring conduits, step are：S1 is by the tube end flares of conduit；S2 is by tube end flares part
Front end fold inward；The part of pipe end front end fold inward is not extremely turned down part with tube end flares part and is bonded by S3.
10. a kind of flared method of double flaring conduits according to claim 9, which is characterized in that, will in the step S1
When the tube end flares of conduit, it is flared as tapered region and cylindrical circular fold area.
11. a kind of flared method of double flaring conduits according to claim 9, which is characterized in that in the step S1：It is first
First need by chassis, lengthen mould and single flaring cavity plate from bottom to top device in testing stand lower die, and ensure it is concentric, then single expansion
Mouth punch-pin is screwed into testing stand upper mold, is then put into pipe, and tightens and lengthen mould and single nut being flared on cavity plate by pipe
It clamps, it is single to be flared punch-pin axial feed then to the heart.
12. a kind of flared method of double flaring conduits according to claim 9, which is characterized in that in the step S2：It will
Single flaring punch-pin, single flaring cavity plate in S1 steps replace with varus punch-pin, varus cavity plate, and the centre that first step is shaped
Pipe is attached in the cavity plate of combination, after the heart, varus punch-pin axial feed.
13. a kind of flared method of double flaring conduits according to claim 9, which is characterized in that in the step S3：It will
Varus punch-pin, varus cavity plate in S2 steps unload and load onto double flaring punch-pin, double flaring cavity plates, and tighten and lengthen mould and double
Flaring cavity plate clamps pipe, and after the heart, double flaring punch-pin feed forming in an axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683633.5A CN108772480A (en) | 2018-06-28 | 2018-06-28 | A kind of double flaring conduits and its flaring die, manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683633.5A CN108772480A (en) | 2018-06-28 | 2018-06-28 | A kind of double flaring conduits and its flaring die, manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108772480A true CN108772480A (en) | 2018-11-09 |
Family
ID=64030447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810683633.5A Pending CN108772480A (en) | 2018-06-28 | 2018-06-28 | A kind of double flaring conduits and its flaring die, manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108772480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109063315A (en) * | 2018-07-26 | 2018-12-21 | 成都飞机工业（集团）有限责任公司 | A kind of flaring catheter length control method based on Digitized manufacturing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415443A (en) * | 1992-08-30 | 1995-05-16 | Hayashi; Toshiomi | Pipe with flange for pipe fitting, pipe flange used therewith and method of joining said pipe with flange with pipe |
| CN2208459Y (en) * | 1994-10-08 | 1995-09-27 | 顾晓宁 | Hydraulic flaring and edge folding machine for pipes |
| CN106270232A (en) * | 2016-11-15 | 2017-01-04 | 安徽江淮汽车股份有限公司 | Pipe fitting flanging reaming tool |
| CN107695218A (en) * | 2017-08-30 | 2018-02-16 | 江西昌河航空工业有限公司 | A kind of pipe double-turnup building mortion and its method |
| CN209303532U (en) * | 2018-06-28 | 2019-08-27 | 成都飞机工业（集团）有限责任公司 | A kind of double flaring conduits and its flaring die |
-
2018
- 2018-06-28 CN CN201810683633.5A patent/CN108772480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415443A (en) * | 1992-08-30 | 1995-05-16 | Hayashi; Toshiomi | Pipe with flange for pipe fitting, pipe flange used therewith and method of joining said pipe with flange with pipe |
| CN2208459Y (en) * | 1994-10-08 | 1995-09-27 | 顾晓宁 | Hydraulic flaring and edge folding machine for pipes |
| CN106270232A (en) * | 2016-11-15 | 2017-01-04 | 安徽江淮汽车股份有限公司 | Pipe fitting flanging reaming tool |
| CN107695218A (en) * | 2017-08-30 | 2018-02-16 | 江西昌河航空工业有限公司 | A kind of pipe double-turnup building mortion and its method |
| CN209303532U (en) * | 2018-06-28 | 2019-08-27 | 成都飞机工业（集团）有限责任公司 | A kind of double flaring conduits and its flaring die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109063315A (en) * | 2018-07-26 | 2018-12-21 | 成都飞机工业（集团）有限责任公司 | A kind of flaring catheter length control method based on Digitized manufacturing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107745029A (en) | A kind of store-vessel bottom integral forming method | |
| CN206130355U (en) | Aviation fluid pipeline connects | |
| CN104139281B (en) | A kind of titanium alloy circular arc thin-walled parts fixture for forming and method | |
| CN107825046B (en) | Welding tool and welding method for thin-wall corrugated pipe sheet | |
| WO2019210649A1 (en) | Metal inner high pressure forming piece dimension control method and system | |
| CN108772480A (en) | A kind of double flaring conduits and its flaring die, manufacturing process | |
| CN209303532U (en) | A kind of double flaring conduits and its flaring die | |
| CN106881439B (en) | The manufacturing method of ball transition irregular barrel forging | |
| CN109719187B (en) | Asymmetric reducing thin-wall part circumferential flow forming device | |
| CN207000833U (en) | A kind of Varying-thickness big flow metal diaphragm formula tank diaphragm of spacecraft | |
| CN108941264A (en) | Thick-wall and large-diameter cone suppresses general pressing mold and its application method | |
| CN101376146A (en) | Shape-expanding method of butt welding tube | |
| CN105499418B (en) | The reducing device and its application process of ultra-thin-wall cylindrical part | |
| CN207521514U (en) | The bulging device of internal high pressure forming pipe fitting | |
| CN108637093B (en) | Warm forming die for aluminum alloy hemispherical shell | |
| CN107745049B (en) | Copper-Aluminum compound column wing radiator copper pipe pipe-expanding device and its expansion tube method | |
| CN204841034U (en) | Load homogenate jar and filling device of chromatographic column | |
| CN206377366U (en) | A kind of oil connection | |
| CN215903009U (en) | Minor diameter thin wall pipe non-full weld fillet weld internal stay frock | |
| CN205929428U (en) | PE pipeline tip school circle device | |
| CN103071710B (en) | Hydraulic volume control forming device for metal corrugated pipe | |
| CN110102643B (en) | Disposable forming die and forming method for double-corrugated shell | |
| CN206785994U (en) | A kind of multipurpose inner barrel support meanss | |
| CN201768763U (en) | Tube separating barrel and damping extrusion device | |
| CN201554848U (en) | Spherical pressure container |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181109 |