CN112518244A - Manufacturing process of novel flange - Google Patents
Manufacturing process of novel flange Download PDFInfo
- Publication number
- CN112518244A CN112518244A CN202011322055.6A CN202011322055A CN112518244A CN 112518244 A CN112518244 A CN 112518244A CN 202011322055 A CN202011322055 A CN 202011322055A CN 112518244 A CN112518244 A CN 112518244A
- Authority
- CN
- China
- Prior art keywords
- forging
- upsetting
- flange
- steel plate
- piece
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
Abstract
The invention discloses a manufacturing process of a novel flange, which comprises the following steps: a: selecting a steel plate with the thickness of 80-110mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like; b: the vertically erected steel plate forging is hung in upsetting equipment consisting of an upsetting die and a rotary workbench by a lifting appliance, the forging is fixed on the rotary workbench, a 5000T hydraulic press is adopted to upset the forging, the workbench rotates in the upsetting process until the whole surface of the forging is upset, and therefore the forging is guaranteed to be upset into a round shape. The invention solves the problems that the flange prepared by the prior process has lower strength, is easy to crack or break under the action of external force in the using process, and the stress of the forging is uneven in the upsetting process, so that the forging is easy to deform, meanwhile, the corrosion resistance is poor, and the service life of the flange is shortened.
Description
Technical Field
The invention relates to the technical field of flange manufacturing processes, in particular to a novel flange manufacturing process.
Background
The flange is also called flange disc or flange, the flange is a part for connecting the shaft and the shaft, is used for connecting pipe ends, is also used for connecting the inlet and the outlet of equipment, is used for connecting two pieces of equipment, such as a speed reducer flange, a flange connection or a flange joint, and refers to a detachable connection which is formed by connecting a flange, a gasket and a bolt, wherein the flange, the gasket and the bolt are connected with each other to form a combined sealing structure, and the pipeline flange refers to a flange for piping in a pipeline device and refers to an inlet and outlet flange of the equipment on the equipment.
The flange prepared by the existing process has lower strength, is easy to crack or break under the action of external force in the using process, and is uneven in stress of a forged piece in the upsetting process, so that the forged piece is easy to deform, poor in corrosion resistance and reduced in service life.
Disclosure of Invention
The invention aims to provide a novel flange manufacturing process which has the advantages of uniform stress on a forged piece in the upsetting process, high upsetting quality and strength and prolonged service life of a flange, and solves the problems that the flange prepared by the conventional process has lower strength, is easy to crack or break under the action of external force in the using process, is unevenly stressed in the upsetting process, is easy to deform, has poor corrosion resistance and prolongs the service life of the flange.
In order to achieve the purpose, the invention provides the following technical scheme: a manufacturing process of a novel flange comprises the following steps:
a: selecting a steel plate with the thickness of 80-110mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the first stage forging temperature is 900-;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
Preferably, in the step B, the forging on the rotary table is lifted by a lifting appliance, turned by 180 degrees and then fixed on the rotary table again, and then the steel plate on the rotary table is upset again.
Preferably, in the step C, an air hammer of 200-.
Preferably, in the step E, before ring rolling, graphite lubricant is required to be coated on the surfaces of the main roll, the core roll, the conical rolls and the dead bracket, then ring rolling is performed on the forged piece, and in the rolling process, the graphite lubricant is required to be continuously sprayed on the surfaces of the steel billets contacted with the main roll, the core roll and the two conical rolls at a speed of 0.3-1.5L/min.
Preferably, the rotating speed of the main shaft of the drill in the step E is 600-.
Preferably, the fixture in the step E comprises four cylinders and four clamping rings, the cylinders are fixedly mounted on the supporting table through fixing parts, the forge piece is placed on the supporting table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively located on the left side and the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side and the front side and the rear side of the forge piece during machining.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has the advantages of uniform stress of the forging in the upsetting process, high upsetting quality and high strength, prolongs the service life of the flange, and solves the problems that the flange prepared by the prior art has lower strength, is easy to crack or break under the action of external force in the using process, is uneven in stress of the forging in the upsetting process, is easy to deform, has poor corrosion resistance and reduces the service life of the flange.
2. According to the invention, through twice forging treatment, cracks can be prevented after the flange is processed, the strength of the finished product is enhanced through forging, the corrosion resistance of the flange can be improved through forming the corrosion-resistant metal coating by adopting plasma spraying, and the service life of the flange is prolonged.
3. According to the invention, through rotating upsetting processing on the rotary worktable, the stress of the forge piece is uniform, and the upsetting processing quality is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A manufacturing process of a novel flange comprises the following steps:
a: selecting a steel plate with the thickness of 80-110mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the first stage forging temperature is 900-;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
And B, hoisting the forge piece on the rotary workbench by a lifting appliance, turning the forge piece for 180 degrees, fixing the forge piece on the rotary workbench again, and upsetting the steel plate on the rotary workbench again.
In the step C, an air hammer with 200 plus 300 tonnages is adopted in the first-stage forging process, and a friction press with 800 plus 1200 tonnages is adopted in the second-stage forging process.
And E, before ring rolling, smearing graphite lubricant on the surfaces of the main roller, the core roller, the conical rollers and the dead bracket, then rolling the ring of the forge piece, and continuously spraying the graphite lubricant on the surfaces of the steel billets contacted with the main roller, the core roller and the two conical rollers at a speed of 0.3-1.5L/min in the rolling process.
And E, the rotating speed of the main shaft of the drill bit is 600-.
And E, the fixture comprises four cylinders and clamping rings, the cylinders are fixedly mounted on the support table through fixing parts, the forge piece is placed on the support table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively positioned on the left side, the right side, the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side, the right side, the front side and the rear side of the forge piece during machining.
The first embodiment is as follows:
a manufacturing process of a novel flange comprises the following steps:
a: selecting a steel plate with the thickness of 80mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the forging temperature in the first stage is 900 ℃, the forging time is 18s, the forging temperature in the second stage is 925 ℃, the forging time is 15s, and cooling is carried out after the forging is finished, wherein the cooling temperature is 20 ℃;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
And B, hoisting the forge piece on the rotary workbench by a lifting appliance, turning the forge piece for 180 degrees, fixing the forge piece on the rotary workbench again, and upsetting the steel plate on the rotary workbench again.
In the step C, a 200-tonnage air hammer is adopted in the first-stage forging process, and a 800-tonnage friction press is adopted in the second-stage forging process.
And E, before ring rolling, smearing graphite lubricant on the surfaces of the main roller, the core roller, the conical rollers and the dead bracket, then rolling the ring of the forge piece, and continuously spraying the graphite lubricant on the surfaces of the steel billets contacted with the main roller, the core roller and the two conical rollers at a speed of 0.3L/min in the rolling process.
And E, the rotating speed of a main shaft of the drill bit is 600r/min, and cooling is carried out by spraying cooling liquid to the surface of the forging piece.
And E, the fixture comprises four cylinders and clamping rings, the cylinders are fixedly mounted on the support table through fixing parts, the forge piece is placed on the support table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively positioned on the left side, the right side, the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side, the right side, the front side and the rear side of the forge piece during machining.
Example two:
a manufacturing process of a novel flange comprises the following steps:
a: selecting a steel plate with the thickness of 100mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the forging temperature in the first stage is 915 ℃, the forging time is 20s, the forging temperature in the second stage is 930 ℃, the forging time is 18s, and cooling is carried out after the forging is finished, wherein the cooling temperature is 23 ℃;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
And B, hoisting the forge piece on the rotary workbench by a lifting appliance, turning the forge piece for 180 degrees, fixing the forge piece on the rotary workbench again, and upsetting the steel plate on the rotary workbench again.
And C, adopting an air hammer of 250 tonnages in the first-stage forging process, and adopting a friction press of 1000 tonnages in the second-stage forging process.
And E, before ring rolling, smearing graphite lubricant on the surfaces of the main roller, the core roller, the conical rollers and the dead bracket, then rolling the ring of the forge piece, and continuously spraying the graphite lubricant on the surfaces of the steel billets contacted with the main roller, the core roller and the two conical rollers at a speed of 1.0L/min in the rolling process.
And E, the rotating speed of the main shaft of the drill bit is 700r/min, and cooling is carried out by spraying cooling liquid to the surface of the forging piece.
And E, the fixture comprises four cylinders and clamping rings, the cylinders are fixedly mounted on the support table through fixing parts, the forge piece is placed on the support table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively positioned on the left side, the right side, the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side, the right side, the front side and the rear side of the forge piece during machining.
Example three:
a manufacturing process of a novel flange comprises the following steps:
a: selecting a steel plate with the thickness of 110mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the forging temperature in the first stage is 930 ℃, the forging time is 23s, the forging temperature in the second stage is 935 ℃, the forging time is 20s, and cooling is carried out after the forging is finished, wherein the cooling temperature is 25 ℃;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
And B, hoisting the forge piece on the rotary workbench by a lifting appliance, turning the forge piece for 180 degrees, fixing the forge piece on the rotary workbench again, and upsetting the steel plate on the rotary workbench again.
And C, adopting a 300-tonnage air hammer in the first-stage forging process, and adopting a 1200-tonnage friction press in the second-stage forging process.
And E, before ring rolling, smearing graphite lubricant on the surfaces of the main roller, the core roller, the conical rollers and the dead bracket, then rolling the ring of the forge piece, and continuously spraying the graphite lubricant on the surfaces of the steel billets contacted with the main roller, the core roller and the two conical rollers at a speed of 1.5L/min in the rolling process.
And E, the rotating speed of the main shaft of the drill bit is 800r/min, and cooling is carried out by spraying cooling liquid to the surface of the forging piece.
And E, the fixture comprises four cylinders and clamping rings, the cylinders are fixedly mounted on the support table through fixing parts, the forge piece is placed on the support table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively positioned on the left side, the right side, the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side, the right side, the front side and the rear side of the forge piece during machining.
In summary, the following steps: this manufacturing process of novel flange has solved the flange intensity that current technology was prepared relatively end, receives easy production crack or fracture under the exogenic action in the use, and forging atress is inhomogeneous at the upsetting in-process for the forging warp easily, and corrosion resistance is poor simultaneously, has reduced flange life's problem.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The manufacturing process of the novel flange is characterized by comprising the following steps of:
a: selecting a steel plate with the thickness of 80-110mm for standby, inspecting the surface of the material, and being not suitable for the steel plate with the defects of serious corrosion, heavy skin, cracks and the like;
b: hoisting the vertically erected steel plate forging into upsetting equipment consisting of an upsetting die and a rotary workbench by using a lifting appliance, fixing the forging on the rotary workbench, upsetting the forging by using a 5000T hydraulic machine, and rotating the workbench in the upsetting process until the whole surface of the forging is upset, so as to ensure that the forging is upset into a round shape;
c: b, forging the forged piece prepared in the step B, wherein the forging is divided into two stages, the first stage forging temperature is 900-;
d: c, measuring and scribing the forged piece manufactured in the step C by using a vernier caliper, determining drawing points of the position of a center hole of the forged piece, then determining drawing points of the position of an installation hole on the periphery of the center hole, and punching by using a punching device;
e: d, mounting the rough-formed forging in the step D on a ring rolling machine, utilizing the ring rolling machine to roll a ring to expand the aperture and the outer diameter of a central hole of the forging, then placing the forging on a drilling machine, clamping and fixing four sides of the forging through a clamp, and drilling the forging after fixing;
f: and E, machining the forged piece in the step E by using a lathe, machining an inner hole according to a certain size, spraying cooling liquid to the forged piece in the machining process for cooling, and then carrying out plasma spraying on the surface of the flange to form a corrosion-resistant metal coating to obtain a finished flange product.
2. A process for manufacturing a new flange according to claim 1, characterized in that: and B, hoisting the forge piece on the rotary workbench by a lifting appliance, turning the forge piece for 180 degrees, fixing the forge piece on the rotary workbench again, and upsetting the steel plate on the rotary workbench again.
3. A process for manufacturing a new flange according to claim 1, characterized in that: in the step C, an air hammer with 200-.
4. A process for manufacturing a new flange according to claim 1, characterized in that: and E, before ring rolling, smearing graphite lubricant on the surfaces of the main roller, the core roller, the conical rollers and the dead bracket, then rolling the ring of the forge piece, and continuously spraying the graphite lubricant on the surfaces of the steel billets contacted with the main roller, the core roller and the two conical rollers at a speed of 0.3-1.5L/min in the rolling process.
5. A process for manufacturing a new flange according to claim 1, characterized in that: and E, the rotating speed of the main shaft of the drill bit in the step E is 600-800r/min, and cooling is carried out by spraying cooling liquid to the surface of the forging.
6. A process for manufacturing a new flange according to claim 1, characterized in that: and E, the fixture comprises four cylinders and clamping rings, the cylinders are fixedly mounted on the supporting table through fixing parts, the forge piece is placed on the supporting table, the number of the cylinders is four, the telescopic ends of the four cylinders are fixedly connected with the clamping rings, the four clamping rings are respectively positioned on the left side, the right side, the front side and the rear side of the forge piece, and the four clamping rings clamp and fix the left side, the right side, the front side and the rear side of the forge piece during machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322055.6A CN112518244A (en) | 2020-11-23 | 2020-11-23 | Manufacturing process of novel flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322055.6A CN112518244A (en) | 2020-11-23 | 2020-11-23 | Manufacturing process of novel flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112518244A true CN112518244A (en) | 2021-03-19 |
Family
ID=74992903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322055.6A Withdrawn CN112518244A (en) | 2020-11-23 | 2020-11-23 | Manufacturing process of novel flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112518244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305360A (en) * | 2021-04-06 | 2021-08-27 | 无锡华轶法兰有限公司 | Flange production process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430897A (en) * | 2011-10-28 | 2012-05-02 | 江阴市恒润环锻有限公司 | Thermal deformation technique of flange with abnormal section |
| KR101243436B1 (en) * | 2012-11-19 | 2013-03-13 | 삼양금속공업 주식회사 | Cuni 90/10 flange and its production method using forge |
| CN108571629A (en) * | 2018-03-07 | 2018-09-25 | 安徽铜陵丰林法兰制造有限公司 | A kind of manufacturing process of novel flange |
| CN108788651A (en) * | 2018-06-28 | 2018-11-13 | 江阴市恒润重工股份有限公司 | The processing technology of thread engaged flange |
| CN110773689A (en) * | 2019-10-26 | 2020-02-11 | 山东省章丘市汽车配件制造有限公司 | Flange forging process for increasing strength |
| CN110814264A (en) * | 2019-12-21 | 2020-02-21 | 济南泰康锻造有限公司 | Flange forging process |
| CN110919375A (en) * | 2019-11-28 | 2020-03-27 | 章丘市普锐锻压有限公司 | Double-size flange forging process |
| CN110977340A (en) * | 2019-11-28 | 2020-04-10 | 章丘市普锐锻压有限公司 | Production process of neck flange for improving production efficiency |
| CN111230037A (en) * | 2020-01-16 | 2020-06-05 | 章丘市广大石化配件有限公司 | Production process of flange for improving utilization rate of raw materials |
-
2020
- 2020-11-23 CN CN202011322055.6A patent/CN112518244A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430897A (en) * | 2011-10-28 | 2012-05-02 | 江阴市恒润环锻有限公司 | Thermal deformation technique of flange with abnormal section |
| KR101243436B1 (en) * | 2012-11-19 | 2013-03-13 | 삼양금속공업 주식회사 | Cuni 90/10 flange and its production method using forge |
| CN108571629A (en) * | 2018-03-07 | 2018-09-25 | 安徽铜陵丰林法兰制造有限公司 | A kind of manufacturing process of novel flange |
| CN108788651A (en) * | 2018-06-28 | 2018-11-13 | 江阴市恒润重工股份有限公司 | The processing technology of thread engaged flange |
| CN110773689A (en) * | 2019-10-26 | 2020-02-11 | 山东省章丘市汽车配件制造有限公司 | Flange forging process for increasing strength |
| CN110919375A (en) * | 2019-11-28 | 2020-03-27 | 章丘市普锐锻压有限公司 | Double-size flange forging process |
| CN110977340A (en) * | 2019-11-28 | 2020-04-10 | 章丘市普锐锻压有限公司 | Production process of neck flange for improving production efficiency |
| CN110814264A (en) * | 2019-12-21 | 2020-02-21 | 济南泰康锻造有限公司 | Flange forging process |
| CN111230037A (en) * | 2020-01-16 | 2020-06-05 | 章丘市广大石化配件有限公司 | Production process of flange for improving utilization rate of raw materials |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305360A (en) * | 2021-04-06 | 2021-08-27 | 无锡华轶法兰有限公司 | Flange production process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7111903B2 (en) | Coreless Spinning Method for Multi-Variable Hollow Shafts with Large Diameter Reduction Ratio | |
| CN105583588B (en) | A kind of processing method for taper roll bearing Internal and external cycle | |
| CN108500108B (en) | Spinning tool and forming method for cylinder with inner circumferential ribs | |
| CN105196012A (en) | Novel process for processing crankshaft | |
| CN102489952A (en) | Method for manufacturing titanium alloy thick-wall pressure-resistant cylinder body | |
| CN105817840A (en) | Machining and producing process of seamless steel pipe | |
| CN109396745B (en) | High-precision nesting process for hot sleeve body for pressure container | |
| CN111940510B (en) | Dismounting device and method for seamless steel pipe cold rolling expansion plug | |
| CN112518244A (en) | Manufacturing process of novel flange | |
| CN108421839B (en) | A kind of flat-bulb steel diplopore model extrusion method | |
| CN106584035A (en) | Preparation method of ultra-wide aluminum alloy sheet for formation of large curved component | |
| CN104148489A (en) | Method and system for producing large-diameter medium-and-thin-wall seamless steel tube | |
| CN112024638A (en) | Production line and production process of large-diameter high-performance stainless steel seamless pipe | |
| CN102010942B (en) | Device for correcting surface induction hardening distortion of slender axial workpieces and operating method | |
| CN112404894B (en) | Preparation method of large length-diameter ratio, small-caliber and ultrathin platinum or platinum-rhodium alloy crucible | |
| RU2502576C1 (en) | Method of making thin-wall large-sized shells by rotary drawing | |
| CN1105079A (en) | Steel made welding baking tank for paper making machinery and producing method | |
| CN204657366U (en) | A kind of shaped device for forging annulus | |
| CN106695243A (en) | Rolling cutter for processing inner hole of oil cylinder | |
| CN113441553A (en) | Seamless pipe and cold rolling method thereof | |
| CN215469668U (en) | Alloy cast iron roller axis centering device | |
| CN103934625A (en) | Piston rod insetting process for jack and stand column | |
| CN219403390U (en) | Anti-deformation adjustable tool for tube mill barrel machining | |
| CN219031483U (en) | Centrifugal roll collar heat treatment lifting device of section mill | |
| CN212070298U (en) | Forging machine capable of centering punched holes |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210319 |