CN110125338A - Conduit jacking and application method - Google Patents
Conduit jacking and application method Download PDFInfo
- Publication number
- CN110125338A CN110125338A CN201910542383.8A CN201910542383A CN110125338A CN 110125338 A CN110125338 A CN 110125338A CN 201910542383 A CN201910542383 A CN 201910542383A CN 110125338 A CN110125338 A CN 110125338A
- Authority
- CN
- China
- Prior art keywords
- pipe die
- socket
- assembly
- sand core
- bellmouth
- 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
- 238000000034 method Methods 0.000 title claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000005266 casting Methods 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009750 centrifugal casting Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The present invention provides a kind of conduit jackings, belong to push pipe production equipment technology, including fastening upper pipe die and lower pipe die for assembly；Bell socket sand core and socket sand core are plugged in the bellmouth profiled section and socket profiled section at assembly both ends respectively, and the inner wall of two sand cores is respectively bellmouth mold and pattern for casting section and socket mold and pattern for casting section；Support rotating mechanism drives assembly rotation.A kind of application method of conduit jacking is additionally provided, pipe die is placed in support rotating mechanism to assembly is combined into；Cleaning pipe die inner wall simultaneously applies diatomite；Sand core is fixed on assembly both ends；Support rotating mechanism rotates assembly, moulding by casting；Remove assembly；The connection of pipe die is dismantled, push pipe is taken out.Conduit jacking provided by the invention solves the problems, such as not being detached from from push pipe because of the small metal die that can not deviate from and be formed bellmouth and socket from push pipe mold of the push pipe both ends big mid diameter of diameter.
Description
Technical field
The invention belongs to push pipe production equipment technologies, are to be related to a kind of conduit jacking and use more specifically
Method.
Background technique
Connection between nodular cast iron push pipe realizes connection by the bellmouth and socket that are set to its both ends, push pipe bellmouth and
The outer diameter of socket is all larger than intermediate isometrical section of outer diameter, and current push pipe mold is integral type, and both ends are straight after the completion of casting
The small push pipe of the big mid diameter of diameter can not be deviate from from push pipe mold.Because push pipe both ends need to be arranged bellmouth and socket flange, and
Cause the big mid diameter of top tube diameter small, if forming bellmouth and socket flange using metal die, the metal after push pipe molding
Mold can not be deviate from from push pipe, and can only be set on isometrical section among push pipe can not remove.
Summary of the invention
The purpose of the present invention is to provide a kind of conduit jackings, it is intended to which solving that the push pipe both ends big mid diameter of diameter is small can not
The problem of metal die of abjection and formation bellmouth and socket flange can not be detached from from push pipe from push pipe mold.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of conduit jacking is provided, comprising:
Upper pipe die；
Lower pipe die, identical as upper tube mode structure, the lower pipe die and upper pipe die mutually fasten and form assembly, the combination
The middle section of body is isometrical section, and one end of the assembly is bellmouth profiled section, and the other end is socket profiled section；
Bell socket sand core, is plugged in the bellmouth profiled section of the assembly, in the inner wall and assembly of the bell socket sand core
Section inner wall linking, the inner wall of the bell socket sand core are bellmouth mold and pattern for casting section；
Socket sand core, is plugged in the socket profiled section of the assembly, in the inner wall and assembly of the socket sand core
Section inner wall linking, the inner wall of the socket sand core are socket mold and pattern for casting section；
Support rotating mechanism, for driving the assembly to rotate.
Further, the upper pipe die is bolted with lower pipe die.
Further, the upper pipe die and lower pipe die are set to inside outer layer pipe die and by means of the extruding of the outer layer pipe die
And it fastens.
Further, the bell socket sand core and socket sand core are formed by means of the bellmouth that baffle is fixed on the assembly
Section and socket profiled section, the bellmouth profiled section and socket profiled section, which are equipped with, is respectively used to accommodate bell socket sand core and socket sand core
Annular groove.
Further, the baffle is detachably connected with upper pipe die and lower pipe die.
Further, the support rotating mechanism includes:
Rolling band is connected on the outer wall of the bellmouth profiled section and socket profiled section；
Support roller rotation and can be arranged in pairs and be used to carry and contact the rolling band；
Motor, for driving support roller to rotate.
Further, the rolling band is connected by tensioner bellmouth profiled section with socket profiled section.
Further, the support rotating mechanism includes:
Support roller rotation and can be arranged in pairs and be used to carry and contact the outer layer pipe die；
Limiting slot, the outer wall along the outer layer pipe die circumferentially open up, and the support roller is set in limiting slot；
Motor, for driving support roller to rotate.
The present invention also provides a kind of application methods of push pipe mold, comprising the following steps:
Lower pipe die is connect to form assembly with upper pipe die by pairing；
The assembly is placed on support rotating mechanism；
Lower pipe die and upper pipe die inner wall are cleared up, sprays diatomite after the completion of cleaning on inner wall；
Bell socket sand core and socket sand core are fixed on lower pipe die and upper pipe die both ends；
Opening support rotating mechanism rotates assembly, while carrying out the casting of iron liquid until forming push pipe；
Assembly is removed from support rotating mechanism；
The connection for dismantling lower pipe die Yu upper pipe die, push pipe is taken out.
The beneficial effect of conduit jacking provided by the invention is: compared with prior art, conduit jacking of the present invention it is upper
Pipe die and lower pipe die mutually can be fastened and be opened, and solve that the push pipe both ends big mid diameter of diameter is small to be taken off from push pipe mold
Out the problem of.The both ends of conduit jacking are provided with bell socket sand core and socket sand core, and sand core can be smashed to disengaging after push pipe molding
Push pipe, solve because bellmouth and socket outer diameter are greater than among push pipe caused by isometrical section bellmouth mold and socket mold can not be from
The problem of being detached from push pipe.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the top view of conduit jacking provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view in Fig. 1 along the direction A；
Fig. 3 is the cross-sectional view in Fig. 2 along the direction B；
Fig. 4 is the partial enlarged view of C portion in Fig. 2；
Fig. 5 be another embodiment of the present invention provides conduit jacking structural schematic diagram.
In figure: 1, rolling band；2, tensioner；3, bell socket sand core；4, upper pipe die；5, push pipe；6, socket sand core；7, bolt；8,
Lower pipe die；9, outer layer pipe die；10, limiting slot；11, support roller；12, baffle.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1-4, now conduit jacking provided by the invention is illustrated.The conduit jacking, including it is upper
Pipe die 4, lower pipe die 8, bell socket sand core 3, socket sand core 6 and support rotating mechanism.Lower pipe die 8 is identical as upper 4 structure of pipe die, described
Lower pipe die 8 mutually fastens with upper pipe die 4 and forms assembly, and the middle section of the assembly is isometrical section, one end of the assembly
For bellmouth profiled section, the other end is socket profiled section.Bell socket sand core 3 is plugged in the bellmouth profiled section of the assembly, described to hold
The inner wall of mouth sand core 3 is connected with the middle section inner wall of assembly, and the inner wall of the bell socket sand core 3 is bellmouth mold and pattern for casting section.Socket
Sand core 6 is plugged in the socket profiled section of the assembly, and the inner wall of the socket sand core 6 is connected with the middle section inner wall of assembly,
The inner wall of the socket sand core 6 is socket mold and pattern for casting section.Support rotating mechanism, for driving the assembly to rotate.
Push pipe 5 is made of centrifugal casting technique, and the inner wall interlude of upper pipe die 4 and lower pipe die 8 constitutes a complete circle
Cylindricality.The bellmouth of push pipe 5 and the diameter of socket are greater than the diameter of 5 interlude of push pipe, and upper pipe die 4 and lower pipe die 8 are made in push pipe 5
It is detachable afterwards to separate, from 5 radial separation of push pipe without from axial separation.Lower pipe die 8 is mutually fastened with upper pipe die 4, centrifugal casting
At present pipe die 8 and the assembly of upper pipe die 4 rotate on support rotating mechanism, and the iron liquid of thawing is from upper pipe die 4 and lower pipe die 8 one
The opening at end is poured, and iron liquid is adjacent to pipe die 4 and lower 8 inner wall of pipe die and bell socket sand core 3 and socket under the influence of centrifugal force
To form push pipe 5, push pipe 5 is made of the cylindrical tube of interlude and the bellmouth at both ends with socket sand core 6.Bellmouth and socket are matched
A kind of mode that connection is pipeline connection is closed, bellmouth internal diameter is greater than socket outer diameter, and socket is inserted into bellmouth when use and is aided with close
The sealed connection between push pipe 5 can be realized in sealing.In order to realize better seal structure, the structure of certain sockets and bellmouth is set
That counts is more special, and the outer diameter of socket and bellmouth is all larger than 5 interlude cylindrical tube of push pipe, nothing after this causes push pipe 5 to form
Method is pushed out from one end of mold, can only be dismantled mold and be taken out push pipe 5.In order to realize the shape of bellmouth and socket, need to make
With corresponding mold, but because the outer diameter of socket and bellmouth is all larger than 5 interlude cylindrical tube of push pipe, if using metal die
Will lead to it can not be detached from from push pipe, therefore use sand core, break sand core after the completion of casting.
Conduit jacking provided by the invention, compared with prior art, upper pipe die 4 of the invention and lower pipe die 8 can be detained mutually
It closes and opens, solving the problems, such as that the 5 big mid diameter of both ends diameter of push pipe is small can not deviate from from push pipe mold.Both ends use sand
Core forms bellmouth and socket flange, solves and holds because bellmouth and socket flange outer diameter are greater than among push pipe caused by isometrical section
The problem of mouth mold tool and socket mold can not be detached from from push pipe.
As a kind of specific embodiment of conduit jacking provided by the invention, Fig. 1 and Fig. 3, the upper pipe die 4 are please referred to
It is connect with lower pipe die 8 by bolt 7.
The connection of pipe die 4 and lower pipe die 8 in the realization that bolt 7 can be convenient.
As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 5, the upper pipe die 4 and lower pipe die 8 are set to
It is fastened inside outer layer pipe die 9 and by means of the extruding of the outer layer pipe die 9.
Upper pipe die 4 and lower pipe die 8 are placed in the inside of outer layer pipe die 9, and the outer wall of upper pipe die 4 and lower pipe die 8 is by outer tube
The inner wall of mould 9 is squeezed and is fixed to each other.
As a kind of specific embodiment of the embodiment of the present invention, Fig. 2 and Fig. 4, the bell socket sand core 3 and socket are please referred to
Sand core 6 is fixed on the bellmouth profiled section and socket profiled section of the assembly by means of baffle 12, the bellmouth profiled section and
Socket profiled section is equipped with the annular groove for being respectively used to accommodate bell socket sand core 3 and socket sand core 6.
Bell socket sand core 3 and socket sand core 6 are limited and fixed by annular grooves and baffle 12, and there are also stop iron liquid outflow for baffle 12
Effect, 12 center of baffle offer through-hole for iron liquid injection and gas discharge.
As a kind of specific embodiment of the embodiment of the present invention, the baffle 12 and upper pipe die 4 and lower pipe die 8 are detachable
Connection.
In order to easily install bell socket sand core 3 and socket sand core 6, baffle 12 detachably connects with upper pipe die 4 and lower pipe die 8
It connects.Being detachably connected herein can be to be bolted or the modes such as spring pin connection.
As a kind of specific embodiment of the embodiment of the present invention, Fig. 2-3 is please referred to, the support rotating mechanism includes:
Rolling band 1 is connected on the outer wall of the bellmouth profiled section and socket profiled section；Support roller 11；Rotation and it can be arranged in pairs and be used for
Carrying contacts the rolling band 1；Motor, for driving support roller 11 to rotate.
Rolling band 1 is run on support roller 11, upper pipe die 4 and lower pipe die 8 is not direct contacts with support roller 11 and generate abrasion.Rolling band
1 is two, and the both ends of upper pipe die 4 and lower 8 assembly of pipe die are set in circular ring shape.Rolling band 1 is that dynamic friction is connect with support roller 11, is held in the palm
Wheel 11 is driven by motor.
As a kind of specific embodiment of the embodiment of the present invention, Fig. 2 and Fig. 4 is please referred to, the rolling band 1 passes through tensioner
2 bellmouth profiled sections are connected with socket profiled section.
Tensioner 2 realizes the connection of rolling band 1 and bellmouth profiled section and socket profiled section by tensioner.
As a kind of specific embodiment of the embodiment of the present invention, the support rotating mechanism includes:
Support roller 11 rotation and can be arranged in pairs and be used to carry and contact the outer layer pipe die 9；
Limiting slot 10, the outer wall along the outer layer pipe die 9 circumferentially open up, and the support roller 11 is set in limiting slot 10；
Motor, for driving support roller 11 to rotate.
Outer layer pipe die 9 can not only make upper tube mould 4 and lower pipe die 8 relatively fixed, can also avoid pipe die 4 and lower pipe die
8 contact with support roller 11 and generate abrasion.In order to limit outer layer pipe die 9 in the movement of its axis direction, limiting slot 10 is set.
The method for carrying out push pipe production using conduit jacking, it is characterised in that: the following steps are included:
Lower pipe die 8 is connect to form assembly with upper pipe die 4 by pairing；
The assembly is placed on support rotating mechanism；
Lower pipe die 8 and upper 4 inner wall of pipe die are cleared up, sprays diatomite after the completion of cleaning on inner wall；
Bell socket sand core 3 and socket sand core 6 are fixed on lower pipe die 8 and upper 4 both ends of pipe die；
Opening support rotating mechanism rotates assembly, while carrying out the casting of iron liquid until forming push pipe；
Assembly is removed from support rotating mechanism；
The connection for dismantling lower pipe die 8 and upper pipe die 4, push pipe is taken out.
Upper pipe die 4 connect to form assembly by pairing with lower pipe die 8, and upper pipe die 4 is formed with lower 8 interlude inner wall of pipe die
It is cylindrical.In order to rotate assembly to provide the centrifugal force of centrifugal casting, the assembly is placed on support rotating mechanism
On.Clear up iron liquid residue and diatomite that lower pipe die 8 is generated with last time casting technique remaining on upper 4 inner wall of pipe die.It has cleared up
Diatomite is sprayed on inner wall after, when with heat type method centrifugal casting as-cast ferrite ductile iron pipe, to obtain required by push pipe 5
Microstructure and mechanical property, and reduce thermal shock of the iron liquid to casting mold, viscous type is prevented to improve the service life of casting mold, it is desired to casting mold
Coating has excellent insulation capacity and enough adhesive strengths and elevated temperature strength, and what diatomite paint can be relatively good expires
The foot requirement.Simultaneously, because 5 metal mold of push pipe is longer, for prevent from generating stomata in push pipe 5 and guarantee the smooth off-type of push pipe 5 and
Casting mold is not pulled, coating gas-forming property is also required to want low, energy diatomite paint can form good storage gas and profit on type tube surface
Sliding function, and its retained strength wants low, is convenient to clean.
Sand core needs to fix relative to lower pipe die 8 and upper pipe die 4, and bell socket sand core 3 and socket sand core 6 are fixed on lower pipe die 8
With upper 4 both ends of pipe die.Rotate in mounted lower pipe die 8 and upper pipe die 4 on support roller 11, support roller 11 is driven by a motor and rotates
To make lower pipe die 8 and upper pipe die 4 rotate.By the iron liquid of thawing from one end of lower pipe die 8 and upper pipe die 4 be poured, iron liquid from
It can be distributed along the inner wall of lower pipe die 8 and upper pipe die 4 under the action of mental and physical efforts, and can be along bell socket sand core 3 and 6 shape of socket sand core point
Cloth.It is cooled down after casting complete until push pipe 5 forms, support roller 11 stops operating.
It needs for push pipe 5 to be removed from the molds later, first removes assembly from support rotating mechanism.Because of bellmouth
The diameter of lower pipe die 8 and upper 4 interlude inner wall of pipe die is all larger than with the diameter of socket, push pipe 5 can not be from lower pipe die 8 and upper pipe die
It releases, lower pipe die 8 can only be dismantled with upper pipe die 4 to be detached from push pipe 5 along its axis direction in 4.By lower pipe die 8 and upper pipe die 4
It dismantles, separates push pipe 5 with lower pipe die 8 with upper pipe die 4.
After obtaining push pipe 5, the next step of 5 treatment process of push pipe, such as cleaning 5 surface of push pipe and polishing can be carried out
Nozzle etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. conduit jacking characterized by comprising
Upper pipe die；
Lower pipe die, identical as upper tube mode structure, the lower pipe die and upper pipe die mutually fasten and form assembly, the assembly
Middle section is isometrical section, and one end of the assembly is bellmouth profiled section, and the other end is socket profiled section；
Bell socket sand core, is plugged in the bellmouth profiled section of the assembly, in the inner wall of the bell socket sand core and the middle section of assembly
Wall linking, the inner wall of the bell socket sand core are bellmouth mold and pattern for casting section；
Socket sand core, is plugged in the socket profiled section of the assembly, in the inner wall of the socket sand core and the middle section of assembly
Wall linking, the inner wall of the socket sand core are socket mold and pattern for casting section；
Support rotating mechanism, for driving the assembly to rotate.
2. conduit jacking as described in claim 1, which is characterized in that the upper pipe die is bolted with lower pipe die.
3. conduit jacking as described in claim 1, which is characterized in that the upper pipe die and lower pipe die are set to inside outer layer pipe die
And it is fastened by means of the extruding of the outer layer pipe die.
4. conduit jacking as described in claim 1, which is characterized in that the bell socket sand core and socket sand core are by means of baffle
It is fixed on the bellmouth profiled section and socket profiled section of the assembly, the bellmouth profiled section and socket profiled section are equipped with to be used respectively
In the annular groove for accommodating bell socket sand core and socket sand core.
5. conduit jacking as claimed in claim 4, which is characterized in that the baffle detachably connects with upper pipe die and lower pipe die
It connects.
6. conduit jacking as described in claim 1, which is characterized in that the support rotating mechanism includes:
Rolling band is connected on the outer wall of the bellmouth profiled section and socket profiled section；
Support roller rotation and can be arranged in pairs and be used to carry and contact the rolling band；
Motor, for driving support roller to rotate.
7. conduit jacking as claimed in claim 6, which is characterized in that the rolling band passes through tensioner bellmouth profiled section and socket
Profiled section connection.
8. conduit jacking as claimed in claim 3, which is characterized in that the support rotating mechanism includes:
Support roller rotation and can be arranged in pairs and be used to carry and contact the outer layer pipe die；
Limiting slot, the outer wall along the outer layer pipe die circumferentially open up, and the support roller is set in limiting slot；
Motor, for driving support roller to rotate.
9. the application method of conduit jacking as described in claim 1, it is characterised in that: the following steps are included:
Lower pipe die is connect to form assembly with upper pipe die by pairing；
The assembly is placed on support rotating mechanism；
Lower pipe die and upper pipe die inner wall are cleared up, sprays diatomite after the completion of cleaning on inner wall；
Bell socket sand core and socket sand core are fixed on lower pipe die and upper pipe die both ends；
Starting support rotating mechanism rotates assembly, while carrying out the casting of iron liquid until forming push pipe；
Assembly is removed from support rotating mechanism；
The connection for dismantling lower pipe die Yu upper pipe die, push pipe is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542383.8A CN110125338A (en) | 2019-06-21 | 2019-06-21 | Conduit jacking and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542383.8A CN110125338A (en) | 2019-06-21 | 2019-06-21 | Conduit jacking and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110125338A true CN110125338A (en) | 2019-08-16 |
Family
ID=67578980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910542383.8A Pending CN110125338A (en) | 2019-06-21 | 2019-06-21 | Conduit jacking and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110125338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523190A (en) * | 2021-07-13 | 2021-10-22 | 福建省立新船舶工程有限公司 | Machining device and machining method for ship tail shaft bearing sleeve |
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| EP0322305A2 (en) * | 1987-12-21 | 1989-06-28 | Honda Giken Kogyo Kabushiki Kaisha | Body frame for motor-bicycle |
| CN204892896U (en) * | 2015-06-03 | 2015-12-23 | 阳城县华王通用离心铸管厂 | Cracked type section of thick bamboo of prevention centrifugal cast thin wall casting pig socket tube |
| CN106180585A (en) * | 2016-08-29 | 2016-12-07 | 芜湖新兴铸管有限责任公司 | A kind of ductile iron pipe push pipe mold clamp board |
| CN106735045A (en) * | 2017-03-28 | 2017-05-31 | 营口经济技术开发区爱维尔铸业有限公司 | A kind of double plate flange straight tube is centrifuged monoblock cast metal die |
| CN107042294A (en) * | 2017-03-28 | 2017-08-15 | 营口经济技术开发区爱维尔铸业有限公司 | A kind of centrifuge cast for double plate flange straight tube and flange straight tube through walls |
| CN210359147U (en) * | 2019-06-21 | 2020-04-21 | 河北新兴铸管有限公司 | Pipe jacking device |
-
2019
- 2019-06-21 CN CN201910542383.8A patent/CN110125338A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0322305A2 (en) * | 1987-12-21 | 1989-06-28 | Honda Giken Kogyo Kabushiki Kaisha | Body frame for motor-bicycle |
| CN204892896U (en) * | 2015-06-03 | 2015-12-23 | 阳城县华王通用离心铸管厂 | Cracked type section of thick bamboo of prevention centrifugal cast thin wall casting pig socket tube |
| CN106180585A (en) * | 2016-08-29 | 2016-12-07 | 芜湖新兴铸管有限责任公司 | A kind of ductile iron pipe push pipe mold clamp board |
| CN106735045A (en) * | 2017-03-28 | 2017-05-31 | 营口经济技术开发区爱维尔铸业有限公司 | A kind of double plate flange straight tube is centrifuged monoblock cast metal die |
| CN107042294A (en) * | 2017-03-28 | 2017-08-15 | 营口经济技术开发区爱维尔铸业有限公司 | A kind of centrifuge cast for double plate flange straight tube and flange straight tube through walls |
| CN210359147U (en) * | 2019-06-21 | 2020-04-21 | 河北新兴铸管有限公司 | Pipe jacking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523190A (en) * | 2021-07-13 | 2021-10-22 | 福建省立新船舶工程有限公司 | Machining device and machining method for ship tail shaft bearing sleeve |
| CN113523190B (en) * | 2021-07-13 | 2023-09-22 | 福建省立新船舶工程有限公司 | Processing device and processing method for ship tail shaft bearing sleeve |
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