CN109226303A - Prefabricated rods processing method - Google Patents
Prefabricated rods processing method Download PDFInfo
- Publication number
- CN109226303A CN109226303A CN201810981428.7A CN201810981428A CN109226303A CN 109226303 A CN109226303 A CN 109226303A CN 201810981428 A CN201810981428 A CN 201810981428A CN 109226303 A CN109226303 A CN 109226303A
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- Prior art keywords
- plug
- slightly
- sliding bar
- essence
- processing method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/18—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of limited length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/34—Guiding or supporting the material or mandrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tunnel Furnaces (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
This application discloses a kind of prefabricated rods processing method, including plug extension process, plug extension process includes slightly prolonging step and essence prolongs step；Slightly prolong in step, plug is vertically arranged, plug is heated while rotating plug, and stretched operation is carried out to plug；Essence is prolonged in step, will be horizontally disposed with by the plug slightly prolonged, plug is heated while rotating plug, and carry out stretched operation to plug；The plug extension process is carried out by extension device.The plug extension process of the application prefabricated rods processing method, which once clamps just to be able to carry out slightly to prolong by extension device, prolongs operation with essence, substantially increases processing efficiency.
Description
The application be the applying date be on February 27th, 2017, it is entitled " prefabricated application No. is 201710107985.1
The divisional application of stick processing method ".
Technical field
The present invention relates to prefabricated rods fields, and in particular to prefabricated rods processing method.
Background technique
Production prefabricated rods need first to produce plug, then production outsourcing layer on the basis of plug, and wherein plug is being processed
It needs to carry out extension operation in the process, specifically includes slightly to prolong and prolong two steps with essence, in the prior art, slightly prolonging is that plug is vertical
Setting is stretched through heating stove heating, after the completion of slightly prolonging, can carry out again essence and prolong stretched operation, at this time can be horizontally arranged plug,
Then plug heating is stretched by blowtorch.
The prior art needs to take out plug from thick rolling equipment after the completion of slightly prolonging, and then transports to smart rolling equipment, again will
Plug is clamped on smart rolling equipment, and this processing method efficiency is lower, and also easy pair in two times of clamping and transportational process
Plug impacts, and there may be hidden danger for plug quality.
Summary of the invention
The present invention efficient can carry out plug thick in view of the above-mentioned problems, propose a kind of prefabricated rods processing method
Prolong and prolongs operation with essence.
The technical solution adopted by the present invention is as follows:
A kind of prefabricated rods processing method, including plug extension process, plug extension process include slightly prolonging step and essence prolongs step
Suddenly；
Slightly prolong in step, plug is vertically arranged, heats plug while rotating plug, and stretching behaviour is carried out to plug
Make；
Essence is prolonged in step, will be horizontally disposed with by the plug that slightly prolongs, heats plug while rotating plug, and to plug into
Row stretched operation；
The plug extension process is carried out by extension device, and the extension device includes:
Rack；
The turntable of two rotational installations on the rack, two turntables are oppositely arranged in parallel, the corresponding side wall of two turntables
On be provided with drawing trajectory；
Rotary disc driving mechanism, for driving turntable to rotate；
Two supporting beams, the both ends of each supporting beam are slidably arranged in respectively on two drawing trajectories, and two supporting beams are opposite
Side be rotatably equipped with fixture, the clamp driving mechanism for driving corresponding fixture rotation is installed at least one supporting beam,
Two fixtures for clamping the auxiliary rod of plug two sides respectively；
Sliding bar is slidably arranged in rack, and one end of sliding bar, which is equipped with, slightly prolongs heating element；
Sliding bar driving mechanism when slightly prolonging operation, drives sliding bar to plug for driving the sliding bar to move back and forth
Side is mobile, and band, which is used force, prolongs heating element close to the plug being vertically arranged, and when essence prolongs operation, drives sliding bar to separate plug
Side is mobile；
Automatic lifting bar, is mounted on the rack, and is located at the lower section of plug, and the upper end of automatic lifting bar is equipped with essence and prolongs spray
Lamp；When essence prolongs operation, turntable rotates 90 °, and automatic lifting bar rises, and drives essence to prolong blowtorch close to horizontally disposed plug；
Supporting beam driving mechanism, slightly prolongs and essence is delayed, and for driving two supporting beams to be located remotely from each other, realizes the drawing to plug
Stretch operation.
Extension device working principle are as follows: plug two sides auxiliary rod is installed in respectively on two fixtures, rotary disc driving mechanism
Turntable rotation is driven, plug is vertically arranged, sliding bar driving mechanism drives to the movement of plug side, and band, which is used force, prolongs heating element
Close to the plug being vertically arranged, fixture drives plug rotation, while slightly prolonging heating element work and heating to plug, supporting beam
Driving mechanism work, so that two supporting beams are located remotely from each other, slightly prolongs operation to the progress of plug；After the completion of slightly prolonging operation, sliding
Bar driving mechanism drives sliding bar mobile to the side far from plug, and make slightly to prolong heating element (prevents turntable from rotating far from plug
When and essence interfere when prolonging operation), rotary disc driving mechanism drives turntable to rotate 90 °, automatic to rise so that plug is horizontally disposed
It drops bar to rise, driving essence to prolong, blowtorch is close to horizontally disposed plug, and fixture drives plug rotation, while essence prolongs blowtorch work pair
Plug is heated, and the work of supporting beam driving mechanism so that two supporting beams are further located remotely from each other, prolongs the carry out essence of plug
Operation.The plug extension process of the application prefabricated rods processing method by extension device once clamp just be able to carry out slightly prolong and essence
Prolong operation, substantially increases processing efficiency.
Optionally, the driving structure that the rotary disc driving mechanism can be conventional for motor etc..
Optionally, the rack includes the first column, and the turntable is rotatably installed in the upper end of the first column.
Optionally, the rack includes the second column, and the second column has movable rail, and the sliding bar is slidably arranged in
In movable rail.
Optionally, there is rack gear, the sliding bar driving mechanism includes gear and sliding tooth rotation on the sliding bar
Dynamic gear drive motor, the gear are engaged with corresponding rack gear.
By the cooperation of gear and rack gear, the reciprocating movement of sliding bar can be accurately controlled.
Optionally, second column, sliding bar and sliding bar driving mechanism it is equal there are two, be located at the two of plug
Side.
Optionally, the heating element that slightly prolongs is slightly to prolong blowtorch.
Optionally, it is respectively left heating furnace and right heating furnace that two, which are slightly prolonged heating element, and two heating furnaces are separately positioned on
On corresponding sliding bar, when slightly prolonging operation, two sliding bars are mobile to plug side, and left and right heating furnace abuts each other, constitute one
A complete heating furnace, mandrel outer is entangled.
Complete heating furnace is made of left heating furnace and right heating furnace, and this split type structure can terminate slightly prolonging operation
Afterwards, heating furnace is split into left heating furnace and right heating furnace, is quickly detached to realize, and before slightly prolonging operation, it can be fast
Left heating furnace and right heating furnace are combined into complete heating furnace by speed.
Optionally, the left heating furnace has positioning column towards the side of right heating furnace, and the right heating furnace adds towards a left side
The side of hot stove has locating slot, and the positioning column and locating slot cooperate.
The design of positioning column and locating slot, so that left heating furnace and right heating furnace facilitate positioning when combining, the two is combined more
Add reliable and stable.
Optionally, the supporting beam driving mechanism includes:
Screw rod is rotatably installed on screw rod；
Stepper motor, for driving lead screw to rotate；
Feed screw nut is slidably mounted on drawing trajectory, and feed screw nut and drawing trajectory are relatively solid in a circumferential direction
It is fixed, the feed screw nut have with the screw rod mate with threaded holes, one end of supporting beam is fixed with corresponding feed screw nut.
It is able to drive screw rod rotation by stepper motor, to control feed screw nut and corresponding supporting beam on drawing trajectory
It is mobile, realize accurate stretched operation.
This method prefabricated rods processing method further includes following operation: after the completion of plug extension process, in the outer surface of plug
Loose media particle is deposited, loose media obtained is then sintered operation, finally sinters preform into.
The beneficial effects of the present invention are: the plug extension process of the application prefabricated rods processing method is primary by extension device
It clamps just to be able to carry out slightly to prolong and prolongs operation with essence, substantially increase processing efficiency.
Detailed description of the invention:
Fig. 1 is schematic diagram of the extension device in the case where slightly prolonging state；
Fig. 2 is extension device in the smart schematic diagram prolonged under state；
Fig. 3 is the schematic diagram of supporting beam driving mechanism；
Fig. 4 is the schematic diagram of the second column and sliding bar.
Each appended drawing reference in figure are as follows:
1, rack；2, turntable；3, supporting beam；4, drawing trajectory；5, fixture；6, plug；7, left heating furnace；8, right heating
Furnace；9, rotary disc driving mechanism；10, the first column；11, automatic lifting bar；12, essence prolongs blowtorch；13, the second column；14, gear drives
Dynamic motor；15, gear；16, sliding bar；17, positioning column；18, locating slot；19, stepper motor；20, screw rod；21, feed screw nut；
22, movable rail；23, rack gear.
Specific embodiment:
Below with reference to each attached drawing, the present invention will be described in detail.
A kind of prefabricated rods processing method, including plug extension process, plug extension process include slightly prolonging step and essence prolongs step
Suddenly；
Slightly prolong in step, plug is vertically arranged, heats plug while rotating plug, and stretching behaviour is carried out to plug
Make；
Essence is prolonged in step, will be horizontally disposed with by the plug that slightly prolongs, heats plug while rotating plug, and to plug into
Row stretched operation.
This method prefabricated rods processing method further includes following operation: after the completion of plug extension process, in the outer surface of plug
Loose media particle is deposited, loose media obtained is then sintered operation, finally sinters preform into.
The plug extension process of prefabricated rods processing method is carried out by extension device, as illustrated in fig. 1 and 2, extension device packet
It includes:
Rack 1；
Two turntables 2 being rotatably installed in rack 1, two turntables 2 are oppositely arranged in parallel, and two turntables 2 are corresponding
Drawing trajectory 4 is provided on side wall；
Rotary disc driving mechanism 9, for driving turntable 2 to rotate；
Two supporting beams 3, the both ends of each supporting beam 3 are slidably arranged in respectively on two drawing trajectories 4, two supporting beams 3
Opposite side is rotatably equipped with fixture 5, and the fixture for driving corresponding fixture 5 to rotate is equipped at least one supporting beam 3 and is driven
Motivation structure, two fixtures 5 for clamping the auxiliary rod of 6 two sides of plug respectively；
Sliding bar 16 is slidably arranged in rack 1, and one end of sliding bar 16, which is equipped with, slightly prolongs heating element；
Sliding bar driving mechanism when slightly prolonging operation, drives sliding bar 16 to plug for driving sliding bar 16 to move back and forth
6 sides are mobile, and band, which is used force, prolongs heating element close to the plug 6 being vertically arranged, and when essence prolongs operation, driving sliding bar 16 is to far from core
The side of stick 6 is mobile；
Automatic lifting bar 11 is mounted in rack 1, and is located at the lower section of plug 6, and the upper end of automatic lifting bar 11 is equipped with
Essence prolongs blowtorch 12；When essence prolongs operation, turntable 2 rotates 90 °, and automatic lifting bar 11 rises, and essence is driven to prolong blowtorch 12 to horizontally disposed
Plug 6 it is close；
Supporting beam driving mechanism, slightly prolongs and essence delay is realized for driving two supporting beams 3 to be located remotely from each other to plug 6
Stretched operation.
Extension device working principle are as follows: 6 two sides auxiliary rod of plug is installed in respectively on two fixtures 5, turntable driving machine
Structure 9 drives turntable 2 to rotate, and is vertically arranged plug 6, and sliding bar driving mechanism drives to the movement of 6 side of plug, and band, which uses force to prolong, to be added
Thermal element drives plug 6 to rotate close to the plug 6 being vertically arranged, fixture 5, while slightly prolonging heating element work and carrying out to plug 6
Heating, supporting beam driving mechanism work, so that two supporting beams 3 are located remotely from each other, slightly prolongs operation to the progress of plug 6；Slightly prolong behaviour
After the completion of work, sliding bar driving mechanism drives sliding bar 16 mobile to the side far from plug 6, makes slightly to prolong heating element far from core
Stick 6 (interferes) when preventing turntable 2 from rotating and when essence prolongs operation, and rotary disc driving mechanism 9 drives turntable 2 to rotate 90 °, so that
Plug 6 is horizontally disposed, and automatic lifting bar 11 rises, and driving essence to prolong, blowtorch 12 is close to horizontally disposed plug 6, and fixture 5 drives
Plug 6 rotates, while essence is prolonged the work of blowtorch 12 and heated to plug 6, supporting beam driving mechanism work, so that two supporting beams
3 are further located remotely from each other, and prolong operation to the carry out essence of plug 6.The plug extension process of the application prefabricated rods processing method passes through
Extension device, which once clamps just to be able to carry out slightly to prolong, prolongs operation with essence, substantially increases processing efficiency.
The driving structure that clamp driving mechanism can be conventional for motor etc. when practice.
In this present embodiment, the driving structure that rotary disc driving mechanism 9 can be conventional for motor etc..
In this present embodiment, rack 1 includes the first column 10, and turntable 2 is rotatably installed in the upper end of the first column 10.
As shown in figure 4, in this present embodiment, rack 1 includes the second column 13, the second column 13 has movable rail 22,
Sliding bar 16 is slidably arranged in movable rail 22.In this present embodiment, there is rack gear 23, sliding bar driving machine on sliding bar 16
Structure includes the gear drive motor 14 that gear 15 and driving gear 15 rotate, and gear 15 is engaged with corresponding rack gear 23.Pass through
The cooperation of gear 15 and rack gear 23 can be accurately controlled the reciprocating movement of sliding bar 16.
In this present embodiment, the second column 13, sliding bar 16 and sliding bar driving mechanism it is equal there are two, be located at plug
6 two sides.
In this present embodiment, it is respectively left heating furnace 7 and right heating furnace 8, two heating furnaces point that two, which are slightly prolonged heating element,
She Zhi not be on corresponding sliding bar 16, when slightly prolonging operation, two sliding bars 16 are mobile to 6 side of plug, left and right heating furnace 8
It abuts each other, constitutes a complete heating furnace, will be entangled outside plug 6.Complete heating furnace is by left heating furnace 7 and right heating furnace
8 are constituted, and heating furnace can be split into left heating furnace 7 and right heating furnace 8 after slightly prolonging operation by this split type structure,
It is quickly detached to realize, and before slightly prolonging operation, quickly left heating furnace 7 and right heating furnace 8 can be combined into completely
Heating furnace.When practice, blowtorch can also be prolonged to be thick by slightly prolonging heating element.
In this present embodiment, left heating furnace 7 has positioning column 17 towards the side of right heating furnace 8, and right heating furnace 8 is towards a left side
The side of heating furnace 7 has locating slot 18, and positioning column 17 and locating slot 18 cooperate.The design of positioning column 17 and locating slot 18, makes
Facilitate positioning when obtaining left heating furnace 7 and the combination of right heating furnace 8, the two combination is more reliable and more stable.
As shown in figure 3, in this present embodiment, supporting beam driving mechanism includes:
Screw rod 20 is rotatably installed on screw rod 20；
Stepper motor 19, for driving lead screw to rotate；
Feed screw nut 21, are slidably mounted on drawing trajectory 4, and feed screw nut 21 and drawing trajectory 4 are in a circumferential direction
Relatively fixed, feed screw nut 21, which has, to consolidate with 20 mate with threaded holes of screw rod, one end of supporting beam 3 with corresponding feed screw nut 21
It is fixed.
Screw rod 20 is able to drive by stepper motor 19 to rotate, and is being drawn to control feed screw nut 21 and correspond to supporting beam 3
It stretches and is moved on track 4, realize accurate stretched operation.
The above description is only a preferred embodiment of the present invention, not thereby limits scope of patent protection of the invention, all
It is directly or indirectly to be used in other relevant technologies with equivalent structure transformation made by description of the invention and accompanying drawing content
Field similarly includes within the scope of the present invention.
Claims (8)
1. a kind of prefabricated rods processing method, including plug extension process, which is characterized in that plug extension process includes slightly prolonging step
Prolong step with essence；
Slightly prolong in step, plug is vertically arranged, plug is heated while rotating plug, and stretched operation is carried out to plug；
Essence is prolonged in step, will be horizontally disposed with by the plug slightly prolonged, is heated plug while rotating plug, and draw plug
Stretch operation；
The plug extension process is carried out by extension device, and the extension device includes:
Rack；
The turntable of two rotational installations on the rack, two turntables are oppositely arranged in parallel, on the corresponding side wall of two turntables
It is provided with drawing trajectory；
Two supporting beams, the both ends of each supporting beam are slidably arranged in respectively on two drawing trajectories, two supporting beams it is opposite one
Side is rotatably equipped with fixture, is equipped with the clamp driving mechanism for driving corresponding fixture rotation at least one supporting beam, and two
Fixture for clamping the auxiliary rod of plug two sides respectively；
Sliding bar is slidably arranged in rack, and one end of sliding bar, which is equipped with, slightly prolongs heating element；
Automatic lifting bar, is mounted on the rack, and is located at the lower section of plug, and the upper end of automatic lifting bar is equipped with essence and prolongs blowtorch；
When essence prolongs operation, turntable rotates 90 °, and automatic lifting bar rises, and drives essence to prolong blowtorch close to horizontally disposed plug；
Supporting beam driving mechanism, slightly prolongs and essence is delayed, and for driving two supporting beams to be located remotely from each other, realizes that the stretching to plug is grasped
Make.
2. prefabricated rods processing method as described in claim 1, which is characterized in that further include:
Rotary disc driving mechanism, for driving turntable to rotate；And
Sliding bar driving mechanism when slightly prolonging operation, drives sliding bar to plug side for driving the sliding bar to move back and forth
Mobile, band, which is used force, prolongs heating element close to the plug being vertically arranged, and when essence prolongs operation, drives sliding bar to the side far from plug
It is mobile；
The rack includes the first column, and the turntable is rotatably installed in the upper end of the first column；The rack includes second vertical
Column, the second column have movable rail, and the sliding bar is slidably arranged in movable rail.
3. prefabricated rods processing method as claimed in claim 2, which is characterized in that have rack gear, the cunning on the sliding bar
Lever driving mechanism includes the gear drive motor of gear and the rotation of sliding tooth wheel, and the gear is engaged with corresponding rack gear.
4. prefabricated rods processing method as claimed in claim 3, which is characterized in that second column, sliding bar and sliding bar
There are two driving mechanism is equal, it is located at the two sides of plug.
5. prefabricated rods processing method as claimed in claim 4, which is characterized in that it is slightly to prolong blowtorch that two, which are slightly prolonged heating element,.
6. prefabricated rods processing method as claimed in claim 4, which is characterized in that it is respectively left heating that two, which are slightly prolonged heating element,
Furnace and right heating furnace, two heating furnaces are separately positioned on corresponding sliding bar, and when slightly prolonging operation, two sliding bars are to plug one
Side is mobile, and left and right heating furnace abuts each other, constitutes a complete heating furnace, mandrel outer is entangled.
7. prefabricated rods processing method as claimed in claim 6, which is characterized in that the left heating furnace towards right heating furnace one
Side has positioning column, and the right heating furnace has locating slot towards the side of left heating furnace, and the positioning column and locating slot cooperate.
8. prefabricated rods processing method as described in claim 1, which is characterized in that the supporting beam driving mechanism includes:
Screw rod is rotatably installed on screw rod；
Stepper motor, for driving lead screw to rotate；
Feed screw nut is slidably mounted on drawing trajectory, and feed screw nut and drawing trajectory are relatively fixed in a circumferential direction, institute
State feed screw nut have with the screw rod mate with threaded holes, one end of supporting beam is fixed with corresponding feed screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981428.7A CN109226303B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981428.7A CN109226303B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201710107985.1A CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107985.1A Division CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
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| Publication Number | Publication Date |
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| CN109226303A true CN109226303A (en) | 2019-01-18 |
| CN109226303B CN109226303B (en) | 2020-04-14 |
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ID=59179950
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810981428.7A Active CN109226303B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201810982378.4A Active CN109226304B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201710107985.1A Active CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
| CN201810981334.XA Active CN109226302B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
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| CN201810982378.4A Active CN109226304B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
| CN201710107985.1A Active CN106881365B (en) | 2017-02-27 | 2017-02-27 | Prefabricated rods processing method |
| CN201810981334.XA Active CN109226302B (en) | 2017-02-27 | 2017-02-27 | Preform processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226302A (en) * | 2017-02-27 | 2019-01-18 | 天津富通集团有限公司 | Prefabricated rods processing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521000B (en) * | 2018-07-26 | 2022-06-10 | 杭州富通通信技术股份有限公司 | Fusion welding device for optical fiber preform and auxiliary rod |
| CN110342809B (en) * | 2019-07-29 | 2021-09-21 | 富通集团有限公司 | Prefabricated rod manufacturing process |
| CN113651526B (en) * | 2021-08-02 | 2023-02-10 | 富通集团（嘉善）通信技术有限公司 | Machining process of core rod |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106881365A (en) | 2017-06-23 |
| CN109226302A (en) | 2019-01-18 |
| CN109226303B (en) | 2020-04-14 |
| CN109226304B (en) | 2020-04-10 |
| CN109226304A (en) | 2019-01-18 |
| CN109226302B (en) | 2020-04-14 |
| CN106881365B (en) | 2018-10-12 |
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