CN113680933A - Forming method of thin-wall magnesium alloy ring piece - Google Patents
Forming method of thin-wall magnesium alloy ring piece Download PDFInfo
- Publication number
- CN113680933A CN113680933A CN202110998728.8A CN202110998728A CN113680933A CN 113680933 A CN113680933 A CN 113680933A CN 202110998728 A CN202110998728 A CN 202110998728A CN 113680933 A CN113680933 A CN 113680933A
- Authority
- CN
- China
- Prior art keywords
- ring
- conductive part
- magnesium alloy
- positive electrode
- thin
- 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
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention provides a forming method of a thin-wall magnesium alloy ring piece, which comprises the following steps: transferring the heated ring rolling blank ring to a ring rolling machine to be in place, and connecting a positive electrode conductive part and a negative electrode conductive part of a low-voltage heating device into the ring rolling blank ring to enable the positive electrode conductive part and the negative electrode conductive part to be in stable contact with the ring rolling blank ring respectively; after the power is switched on, the positive electrode conducting part, the ring binder blank ring, the negative electrode conducting part and the low-voltage heating device form a heating loop together; starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring; when the temperature of the ring rolling blank ring reaches the preset temperature, closing the low-voltage heating device and starting ring rolling; and monitoring the surface temperature of the ring piece in real time in the cerclage process, immediately starting the heating device once the surface temperature is lower than a set temperature lower limit, and immediately closing the low-voltage heating device once the surface temperature of the ring piece is higher than a preset temperature upper limit. The ring piece prepared by the method has the advantages of excellent surface quality, no deformation defects such as cracking and surface layer tension cracking on the whole surface, and good mechanical property.
Description
Technical Field
The invention relates to the technical field of manufacturing of magnesium alloy rings, in particular to a forming method of a thin-wall magnesium alloy ring.
Background
Prior document CN105728604A discloses a forging forming method of a large-outer-diameter magnesium alloy annular forging, which mainly comprises the following steps: cutting a magnesium alloy extrusion rod with a corresponding length or an ingot casting multiple-length material section with a dead head removed, heating the material section, upsetting and forging, manufacturing a ring blank, punching a center, preheating, taking out the material section from a furnace, putting the material section on a ring rolling machine for ring rolling, and discontinuously lubricating working surfaces of a rolling roller, a rolling wheel and a holding roller during the ring rolling process to finish forging and forming of the magnesium alloy annular forging.
However, thin-walled (wall thickness not greater than 35mm) magnesium alloy ring pieces prepared by the method or by the conventional multi-pass ring rolling process have the problems of large-area cracks on the surface of the ring piece, poor mechanical properties of the ring piece and even deformation failure.
Disclosure of Invention
The invention aims to provide a forming method of a thin-wall magnesium alloy ring piece, which is used for solving the technical problems of large-area cracking on the surface of the thin-wall magnesium alloy ring piece prepared by the existing process and poor mechanical property of the ring piece.
In order to achieve the above object, the present invention adopts the following technical solutions.
A forming method of a thin-wall magnesium alloy ring piece is characterized by comprising the following steps:
transferring the heated ring rolling blank ring to a ring rolling machine to be in place, and connecting a positive electrode conductive part and a negative electrode conductive part of a low-voltage heating device into the ring rolling blank ring to enable the positive electrode conductive part and the negative electrode conductive part to be in stable contact with the ring rolling blank ring respectively; after the power is switched on, the positive electrode conducting part, the ring binder blank ring, the negative electrode conducting part and the low-voltage heating device form a heating loop together;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, closing the low-voltage heating device and starting ring rolling; and in the cerclage process, monitoring the surface temperature of the ring piece in real time, immediately starting the heating device once the surface temperature is lower than a set temperature lower limit, and immediately closing the low-voltage heating device once the surface temperature of the ring piece is higher than a preset temperature upper limit. In the invention, the blank ring before being subjected to ring rolling is called a ring rolling blank ring, and the blank ring in the ring rolling process is called a ring piece.
Further, in the ring binding process, the positive electrode conducting part and the negative electrode conducting part are expanded along with the expansion of the diameter of the ring piece, and are reduced along with the reduction of the thickness of the ring piece.
In order to improve the flexibility in the ring rolling process, the positive electrode conductive part and the negative electrode conductive part are conductive wheels or conductive rollers.
In a preferred embodiment of the present invention, the positive conductive part abuts against an inner side wall of the ring, and the negative conductive part abuts against an outer side wall of the ring.
In another preferred embodiment of the present invention, the positive electrode conductive part abuts against the upper surface of the ring, and the negative electrode conductive part abuts against the lower surface of the ring.
In order to improve the stability in the ring rolling process, an insulating spring is arranged between the positive electrode conductive part and the negative electrode conductive part, the upper end of the insulating spring is fixedly connected with the positive electrode conductive part through an insulating spring connecting piece, the lower end of the insulating spring is fixedly connected with the negative electrode conductive part through an insulating spring connecting piece, the thickness of a ring rolling blank ring is equal to the length of the insulating spring in a free state, the thickness of a finished ring is equal to the length of the insulating spring when the insulating spring is pressed down to a limit position by the positive electrode conductive part, and the limit position is the maximum position where the insulating spring is pressed down only through the gravity of the positive electrode conductive part.
In order to further improve the stability in the ring rolling process, insulating springs are arranged on two sides of the ring rolling blank ring and comprise a first insulating spring and a second insulating spring.
Further, when the upper surface of the thin-wall magnesium alloy ring piece is an inclined plane, a balancing weight is arranged on the insulating spring close to the low point side of the inclined plane, so that the positive electrode conducting part is always attached to the surface of the ring piece. In this way, the rolling method is particularly suitable for rolling the opposite ring piece with the upper surface being a bevel.
As a preferable scheme of the invention, the finished product of the thin-wall magnesium alloy ring piece has the inner diameter of 500-600mm, the outer diameter of 700-900mm and the thickness of 19-30 mm.
Has the advantages that: the thin-wall magnesium alloy ring prepared by the method has the advantages of good surface quality, no deformation defects such as cracking and surface layer tension cracking on the whole surface, good mechanical property and high production efficiency; the method for preparing the thin-wall magnesium alloy ring piece only needs to be simply improved on the basis of the existing ring rolling equipment, has low implementation cost and simple operation, and is suitable for large-scale industrial production.
Drawings
FIG. 1 is a schematic view of a ring rolling state in the example;
FIG. 2 is a schematic view of a conductive portion in the ring rolling process in example 1;
FIG. 3 is a schematic view of a conductive portion in the ring rolling process in example 2;
FIG. 4 is a schematic view of a conductive portion in the ring rolling process in example 3;
FIG. 5 is a schematic view showing a ring rolling state in example 4.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are only used for understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
Example 1
A forming method of a thin-wall magnesium alloy ring piece is characterized in that the thin-wall magnesium alloy ring piece is made of AZ80 magnesium alloy, the inner diameter of a finished thin-wall magnesium alloy ring piece is 500mm, the outer diameter of the finished thin-wall magnesium alloy ring piece is 700mm, and the thickness (height) of the finished thin-wall magnesium alloy ring piece is 22mm, and the method comprises the following concrete preparation steps:
as shown in fig. 1 and 2, the hot (heated to 350 ℃) cerclage blank ring is transferred to a cerclage mill to be in place, and a positive conductive part 5 and a negative conductive part 4 of a low-voltage heating device are connected into the cerclage blank ring, so that the positive conductive part 5 and the negative conductive part 4 are respectively in stable contact with the cerclage blank ring; after electrifying, the positive electrode conducting part 5, the ring binder blank ring, the negative electrode conducting part 4 and the low-voltage heating device form a heating loop together;
the positive electrode conductive part 5 and the negative electrode conductive part 4 are conductive wheels, the positive electrode conductive part 5 is attached to the upper surface of the ring member 6, and the negative electrode conductive part 4 is attached to the lower surface of the ring member 6; two insulating springs are arranged between the positive electrode conductive part 5 and the negative electrode conductive part 4 and comprise a first insulating spring 3 and a second insulating spring 7, the upper ends of the two insulating springs are fixedly connected with the positive electrode conductive part 5 through an insulating spring connecting piece, the lower ends of the two insulating springs are fixedly connected with the negative electrode conductive part 4 through an insulating spring connecting piece, the thickness of the ring rolling blank ring is equal to the length of the insulating spring in a free state, and the thickness of the finished ring 6 is equal to the length of the insulating spring pressed to the limit position by the positive electrode conductive part 5; the adopted spring connecting piece is provided with a circular ring which can be sleeved and fixed on the conductive wheel so as to be convenient for the fixed connection of the insulating spring and the conductive wheel;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, the preset heating temperature is 360 ℃, the low-voltage heating device is closed, and ring rolling is started; in the cerclage process, the positive electrode conducting part 5 and the negative electrode conducting part 4 are expanded along with the expansion of the diameter of the ring 6 and are reduced along with the reduction of the thickness of the ring 6; and in the cerclage process, the surface temperature of the ring 6 is monitored in real time, the heating device is immediately started once the surface temperature is lower than the set temperature lower limit, and the low-voltage heating device is immediately closed once the surface temperature of the ring 6 is higher than the preset temperature upper limit.
Example 2
A forming method of a thin-wall magnesium alloy ring piece is characterized in that the thin-wall magnesium alloy ring piece is made of AZ80 magnesium alloy, the inner diameter of a finished thin-wall magnesium alloy ring piece is 55mm, the outer diameter of the finished thin-wall magnesium alloy ring piece is 800mm, and the thickness (height) of the finished thin-wall magnesium alloy ring piece is 25mm, and the method comprises the following concrete preparation steps:
as shown in fig. 1 and fig. 3, the hot (heated to 330 ℃) cerclage blank ring is transferred to a cerclage mill to be in place, and a positive conductive part 5 and a negative conductive part 4 of a low-voltage heating device are connected into the cerclage blank ring, so that the positive conductive part 5 and the negative conductive part 4 are respectively in stable contact with the cerclage blank ring; after electrifying, the positive electrode conducting part 5, the ring binder blank ring, the negative electrode conducting part 4 and the low-voltage heating device form a heating loop together;
the positive electrode conductive part 5 and the negative electrode conductive part 4 are conductive rollers, the positive electrode conductive part 5 is attached to the upper surface of the ring member 6, and the negative electrode conductive part 4 is attached to the lower surface of the ring member 6;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, the preset heating temperature is 365 ℃, the low-voltage heating device is closed, and ring rolling is started; in the cerclage process, the positive electrode conducting part 5 and the negative electrode conducting part 4 are expanded along with the expansion of the diameter of the ring 6 and are reduced along with the reduction of the thickness of the ring 6; and in the cerclage process, the surface temperature of the ring 6 is monitored in real time, the heating device is immediately started once the surface temperature is lower than the set temperature lower limit, and the low-voltage heating device is immediately closed once the surface temperature of the ring 6 is higher than the preset temperature upper limit.
Example 3
A forming method of a thin-wall magnesium alloy ring piece is characterized in that the thin-wall magnesium alloy ring piece is made of AZ80 magnesium alloy, the inner diameter of a finished thin-wall magnesium alloy ring piece is 600mm, the outer diameter of the finished thin-wall magnesium alloy ring piece is 900mm, the thickness (height) of the finished thin-wall magnesium alloy ring piece is 30mm, the upper surface of the thin-wall magnesium alloy ring piece is an inclined plane, and the method comprises the following specific preparation steps:
as shown in fig. 1 and 4, the hot (heated to 340 ℃) cerclage blank ring is transferred to a cerclage mill to be in place, and a positive conductive part 5 and a negative conductive part 4 of a low-voltage heating device are connected into the cerclage blank ring, so that the positive conductive part 5 and the negative conductive part 4 are respectively in stable contact with the cerclage blank ring; after electrifying, the positive electrode conducting part 5, the ring binder blank ring, the negative electrode conducting part 4 and the low-voltage heating device form a heating loop together;
the positive electrode conductive part 5 and the negative electrode conductive part 4 are conductive wheels, the positive electrode conductive part 5 is attached to the upper surface of the ring member 6, and the negative electrode conductive part 4 is attached to the lower surface of the ring member 6; two insulating springs are arranged between the positive electrode conductive part 5 and the negative electrode conductive part 4 and comprise a first insulating spring 3 and a second insulating spring 7, the upper ends of the two insulating springs are fixedly connected with the positive electrode conductive part 5 through an insulating spring connecting piece, the lower ends of the two insulating springs are fixedly connected with the negative electrode conductive part 4 through an insulating spring connecting piece, the thickness of the ring rolling blank ring is equal to the length of the insulating spring in a free state, and the thickness of the finished ring 6 is equal to the length of the insulating spring pressed to the limit position by the positive electrode conductive part 5; a balancing weight is arranged on the insulating spring close to one side of the low point of the inclined plane, and the positive electrode conductive part 5 is attached to the surface of the ring piece 6 all the time;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, the preset heating temperature is 360 ℃, the low-voltage heating device is closed, and ring rolling is started; in the cerclage process, the positive electrode conducting part 5 and the negative electrode conducting part 4 are expanded along with the expansion of the diameter of the ring 6 and are reduced along with the reduction of the thickness of the ring 6; and in the cerclage process, the surface temperature of the ring 6 is monitored in real time, the heating device is immediately started once the surface temperature is lower than the set temperature lower limit, and the low-voltage heating device is immediately closed once the surface temperature of the ring 6 is higher than the preset temperature upper limit.
Example 4
A forming method of a thin-wall magnesium alloy ring piece is characterized in that the thin-wall magnesium alloy ring piece is made of AZ80 magnesium alloy, the inner diameter of a finished thin-wall magnesium alloy ring piece is 520mm, the outer diameter of the finished thin-wall magnesium alloy ring piece is 720mm, and the thickness (height) of the finished thin-wall magnesium alloy ring piece is 30mm, and the method comprises the following concrete preparation steps:
as shown in fig. 5, the hot (heated to 340 ℃) cerclage blank ring is transferred to a cerclage mill to be in place, and the positive conductive part 5 and the negative conductive part 4 of the low-voltage heating device are connected into the cerclage blank ring, so that the positive conductive part 5 and the negative conductive part 4 are respectively in stable contact with the cerclage blank ring; after electrifying, the positive electrode conducting part 5, the ring binder blank ring, the negative electrode conducting part 4 and the low-voltage heating device form a heating loop together;
the positive electrode conductive part 5 and the negative electrode conductive part 4 are conductive wheels, the positive electrode conductive part 5 is attached to the inner side wall of the ring member 6, and the negative electrode conductive part 4 is attached to the outer side wall of the ring member 6;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, the preset heating temperature is 360 ℃, the low-voltage heating device is closed, and ring rolling is started; in the cerclage process, the positive electrode conducting part 5 and the negative electrode conducting part 4 are expanded along with the expansion of the diameter of the ring 6 and are reduced along with the reduction of the thickness of the ring 6; and in the cerclage process, the surface temperature of the ring 6 is monitored in real time, the heating device is immediately started once the surface temperature is lower than the set temperature lower limit, and the low-voltage heating device is immediately closed once the surface temperature of the ring 6 is higher than the preset temperature upper limit.
In each example: specific parameters of the ring rolling process are calculated, selected and determined by technicians in the field according to the specification of the thin-wall magnesium alloy ring piece; the positive electrode conductive part 5 is connected with the fixed shaft 1, the negative electrode conductive part 4 is connected with the fixed shaft 2, and the fixed shaft 1 and the fixed shaft 2 are both connected with a heating arm (mechanical arm) which can adjust the position and the angle of a working end according to rolling requirements. For example, in embodiment 3, the inclination angle of the working end of the heating arm corresponding to the fixed shaft 2 needs to be consistent with the inclination angle of the inclined surface of the ring 6.
The thin-wall magnesium alloy ring piece prepared in the example is subjected to apparent detection and mechanical property detection, and the result is shown in table 1.
TABLE 1 apparent condition and mechanical properties of thin-walled magnesium alloy ring
The thin-wall magnesium alloy ring piece prepared by the method has the advantages of excellent surface quality, no deformation defects such as cracking and surface layer tension cracking on the whole surface, good mechanical property, room-temperature tensile strength of the prepared thin-wall magnesium alloy ring piece above 349MPa, and elongation after fracture above 8.5%. The thin-wall magnesium alloy ring prepared by the method has high production efficiency, and the production efficiency can be at least improved by several times compared with that of the conventional hot tapping.
Claims (9)
1. A forming method of a thin-wall magnesium alloy ring piece is characterized by comprising the following steps:
transferring the heated ring rolling blank ring to a ring rolling machine to be in place, and connecting a positive electrode conductive part (5) and a negative electrode conductive part (4) of a low-voltage heating device into the ring rolling blank ring to enable the positive electrode conductive part (5) and the negative electrode conductive part (4) to be in stable contact with the ring rolling blank ring respectively; after the power is switched on, the positive electrode conducting part (5), the ring binder blank ring, the negative electrode conducting part (4) and the low-voltage heating device form a heating loop together;
starting a low-voltage heating device to heat the cerclage blank ring through the resistance of the cerclage blank ring;
when the temperature of the ring rolling blank ring reaches the preset temperature, closing the low-voltage heating device and starting ring rolling; and in the cerclage process, the surface temperature of the ring piece (6) is monitored in real time, the heating device is immediately started once the surface temperature is lower than the set temperature lower limit, and the low-voltage heating device is immediately closed once the surface temperature of the ring piece (6) is higher than the preset temperature upper limit.
2. The method for forming the thin-wall magnesium alloy ring piece according to claim 1, wherein the method comprises the following steps: in the cerclage process, the positive electrode conducting part (5) and the negative electrode conducting part (4) are expanded along with the expansion of the diameter of the ring piece (6) and are reduced along with the reduction of the thickness of the ring piece (6).
3. The method for forming the thin-walled magnesium alloy ring according to claim 1 or 2, wherein: the positive electrode conductive part (5) and the negative electrode conductive part (4) are conductive wheels or conductive rollers.
4. The method for forming the thin-wall magnesium alloy ring piece according to claim 3, wherein the method comprises the following steps: the positive electrode conducting part (5) is attached to the inner side wall of the ring piece (6), and the negative electrode conducting part (4) is attached to the outer side wall of the ring piece (6).
5. The method for forming the thin-wall magnesium alloy ring piece according to claim 3, wherein the method comprises the following steps: the positive electrode conducting part (5) is attached to the upper surface of the ring piece (6), and the negative electrode conducting part (4) is attached to the lower surface of the ring piece (6).
6. The method for forming the thin-wall magnesium alloy ring piece according to claim 5, wherein the method comprises the following steps: an insulating spring is arranged between the positive electrode conductive part (5) and the negative electrode conductive part (4), the upper end of the insulating spring is fixedly connected with the positive electrode conductive part (5) through an insulating spring connecting piece, the lower end of the insulating spring is fixedly connected with the negative electrode conductive part (4) through an insulating spring connecting piece, the thickness of the ring rolling blank ring is equal to the length of the insulating spring in a free state, the thickness of a finished ring (6) is equal to the length of the insulating spring pressed to a limit position by the positive electrode conductive part (5), and the limit position is the maximum position of the insulating spring pressed by the gravity of the positive electrode conductive part (5).
7. The method for forming the thin-walled magnesium alloy ring according to claim 6, wherein: and the two sides of the cerclage blank ring are provided with insulating springs which comprise a first insulating spring (3) and a second insulating spring (7).
8. The method for forming the thin-wall magnesium alloy ring piece according to claim 7, wherein the method comprises the following steps: when the upper surface of the thin-wall magnesium alloy ring piece is an inclined plane, a balancing weight is arranged on the insulating spring close to the low point side of the inclined plane, so that the positive electrode conducting part (5) is always attached to the surface of the ring piece (6).
9. The method for forming the thin-walled magnesium alloy ring according to claim 8, wherein: the finished product of the thin-wall magnesium alloy ring piece has the inner diameter of 500-600mm, the outer diameter of 700-900mm and the thickness of 19-30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110998728.8A CN113680933A (en) | 2021-08-27 | 2021-08-27 | Forming method of thin-wall magnesium alloy ring piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110998728.8A CN113680933A (en) | 2021-08-27 | 2021-08-27 | Forming method of thin-wall magnesium alloy ring piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113680933A true CN113680933A (en) | 2021-11-23 |
Family
ID=78583583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110998728.8A Pending CN113680933A (en) | 2021-08-27 | 2021-08-27 | Forming method of thin-wall magnesium alloy ring piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113680933A (en) |
Citations (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146613Y (en) * | 2008-01-18 | 2008-11-05 | 黄生新 | Isothermy electrothermal rotary bowl |
| CN201524710U (en) * | 2009-11-19 | 2010-07-14 | 天津三英焊业股份有限公司 | Wire drawing machine powder clamper |
| CN201644510U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Roller thermal forming heating control device |
| CN102085556A (en) * | 2010-12-10 | 2011-06-08 | 贵州航宇科技发展有限公司 | Roll forming method of GH4033 high-temperature alloy thin-wall ring piece |
| CN202069589U (en) * | 2011-05-16 | 2011-12-14 | 时莉 | Self-adaptive electrode clamp of electrocardiogram machine |
| CN102382950A (en) * | 2011-11-08 | 2012-03-21 | 建科机械（天津）股份有限公司 | Conductive wheel electric heating device for cold-rolled ribbed steel bar production line |
| CN102489639A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Fine-grain roll-forming method for large annular piece made of high alloy steel |
| CN102489638A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Radial and axial roll-forming method for large internal-stage annular piece |
| CN102489640A (en) * | 2011-12-29 | 2012-06-13 | 二重集团（德阳）重型装备股份有限公司 | Roller and large ring rolling machine adopting same |
| CN104384187A (en) * | 2014-12-08 | 2015-03-04 | 太原科技大学 | Magnesium alloy sheet rolling device |
| CN204454007U (en) * | 2015-02-12 | 2015-07-08 | 南通海利特橡塑机械有限公司 | A kind of bar cutter clamping pay-off |
| CN204657362U (en) * | 2015-03-06 | 2015-09-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of rotary heating furnace large base plate forging roll former |
| CN204857615U (en) * | 2015-08-06 | 2015-12-09 | 温州创富高压电气有限公司 | Firm electric leakage circuit breaker of wiring |
| CN105170850A (en) * | 2015-09-23 | 2015-12-23 | 定州市金华蓝天汽车零部件有限公司 | Centrifugal casting duplex-metal composite ring part hot extend-rolling forming technology |
| CN105328091A (en) * | 2015-12-11 | 2016-02-17 | 北京科技大学 | Large-modulus cylindrical gear near net hot-rolling shaping device |
| CN205613838U (en) * | 2016-05-11 | 2016-10-05 | 燕山大学 | A device that roll uniform induction that is used for surface to be concave type heats |
| CN106270354A (en) * | 2016-08-12 | 2017-01-04 | 上海电机学院 | A kind of processing method of bearing ring net-size forging |
| CN106627165A (en) * | 2017-01-16 | 2017-05-10 | 陈革 | Current collector |
| CN106994583A (en) * | 2017-03-31 | 2017-08-01 | 黑龙江工程学院 | The manufacture method of Mg alloy thin wall forging-ring |
| CN107841613A (en) * | 2017-11-09 | 2018-03-27 | 山东伊莱特重工股份有限公司 | A kind of large ring sensing heating annealing device |
| CN207619457U (en) * | 2017-11-09 | 2018-07-17 | 山东伊莱特重工股份有限公司 | A kind of induction heating apparatus |
| CN108701950A (en) * | 2016-02-26 | 2018-10-23 | 株式会社半导体能源研究所 | Connecting component, supply unit, electronic equipment and system |
| CN208555941U (en) * | 2018-08-06 | 2019-03-01 | 沈阳市盛华特种铸造有限公司 | A kind of power supply unit of electroslag smelting casting float electrode |
| CN109663821A (en) * | 2019-01-10 | 2019-04-23 | 燕山大学 | A kind of adjustable inductive answers heating rolling device and method |
| CN109794732A (en) * | 2018-12-27 | 2019-05-24 | 天津航天长征技术装备有限公司 | A kind of aluminium alloy thin-walled cylinder section rolls-and inula closes accurate forming method |
| CN209607513U (en) * | 2019-04-12 | 2019-11-08 | 苏州合恩机电有限公司 | A kind of apparatus for peeling off of cable |
| CN209684836U (en) * | 2019-03-27 | 2019-11-26 | 安庆和兴化工有限责任公司 | A kind of PBS plastic master batch automatic material-absorbing interface aligning card holder |
| CN111136104A (en) * | 2020-01-20 | 2020-05-12 | 中冶焦耐(大连)工程技术有限公司 | Ultrasonic wave and pulse current mixed auxiliary wedge-shaped cavity profile rolling line and rolling process |
| CN210608982U (en) * | 2019-10-17 | 2020-05-22 | 邵阳学院 | Wind-solar hybrid power generation device based on Internet of things |
| CN111235505A (en) * | 2020-03-19 | 2020-06-05 | 中国科学院金属研究所 | Preparation process of high-strength and high-toughness TC25G titanium alloy ring piece |
| CN111312928A (en) * | 2020-03-12 | 2020-06-19 | 昆明理工大学 | Semiconductor device for changing band gap through thermal induction |
| CN111337421A (en) * | 2020-03-26 | 2020-06-26 | 保利新联爆破工程集团有限公司 | Environment-friendly blasting vibration measurement sensor auxiliary device |
| US20200306817A1 (en) * | 2015-12-03 | 2020-10-01 | Hitachi Metals, Ltd. | Method for manufacturing ring-rolled product |
| US20200306818A1 (en) * | 2015-12-03 | 2020-10-01 | Hitachi Metals, Ltd. | Method for manufacturing ring-rolled product |
| CN112974542A (en) * | 2021-01-25 | 2021-06-18 | 张家港中环海陆高端装备股份有限公司 | Stable rolling forming method for large copper alloy ring piece |
-
2021
- 2021-08-27 CN CN202110998728.8A patent/CN113680933A/en active Pending
Patent Citations (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146613Y (en) * | 2008-01-18 | 2008-11-05 | 黄生新 | Isothermy electrothermal rotary bowl |
| CN201524710U (en) * | 2009-11-19 | 2010-07-14 | 天津三英焊业股份有限公司 | Wire drawing machine powder clamper |
| CN201644510U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Roller thermal forming heating control device |
| CN102085556A (en) * | 2010-12-10 | 2011-06-08 | 贵州航宇科技发展有限公司 | Roll forming method of GH4033 high-temperature alloy thin-wall ring piece |
| CN202069589U (en) * | 2011-05-16 | 2011-12-14 | 时莉 | Self-adaptive electrode clamp of electrocardiogram machine |
| CN102382950A (en) * | 2011-11-08 | 2012-03-21 | 建科机械（天津）股份有限公司 | Conductive wheel electric heating device for cold-rolled ribbed steel bar production line |
| CN102489639A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Fine-grain roll-forming method for large annular piece made of high alloy steel |
| CN102489638A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Radial and axial roll-forming method for large internal-stage annular piece |
| CN102489640A (en) * | 2011-12-29 | 2012-06-13 | 二重集团（德阳）重型装备股份有限公司 | Roller and large ring rolling machine adopting same |
| CN104384187A (en) * | 2014-12-08 | 2015-03-04 | 太原科技大学 | Magnesium alloy sheet rolling device |
| CN204454007U (en) * | 2015-02-12 | 2015-07-08 | 南通海利特橡塑机械有限公司 | A kind of bar cutter clamping pay-off |
| CN204657362U (en) * | 2015-03-06 | 2015-09-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of rotary heating furnace large base plate forging roll former |
| CN204857615U (en) * | 2015-08-06 | 2015-12-09 | 温州创富高压电气有限公司 | Firm electric leakage circuit breaker of wiring |
| CN105170850A (en) * | 2015-09-23 | 2015-12-23 | 定州市金华蓝天汽车零部件有限公司 | Centrifugal casting duplex-metal composite ring part hot extend-rolling forming technology |
| US20200306818A1 (en) * | 2015-12-03 | 2020-10-01 | Hitachi Metals, Ltd. | Method for manufacturing ring-rolled product |
| US20200306817A1 (en) * | 2015-12-03 | 2020-10-01 | Hitachi Metals, Ltd. | Method for manufacturing ring-rolled product |
| CN105328091A (en) * | 2015-12-11 | 2016-02-17 | 北京科技大学 | Large-modulus cylindrical gear near net hot-rolling shaping device |
| CN108701950A (en) * | 2016-02-26 | 2018-10-23 | 株式会社半导体能源研究所 | Connecting component, supply unit, electronic equipment and system |
| CN205613838U (en) * | 2016-05-11 | 2016-10-05 | 燕山大学 | A device that roll uniform induction that is used for surface to be concave type heats |
| CN106270354A (en) * | 2016-08-12 | 2017-01-04 | 上海电机学院 | A kind of processing method of bearing ring net-size forging |
| CN106627165A (en) * | 2017-01-16 | 2017-05-10 | 陈革 | Current collector |
| CN106994583A (en) * | 2017-03-31 | 2017-08-01 | 黑龙江工程学院 | The manufacture method of Mg alloy thin wall forging-ring |
| CN107841613A (en) * | 2017-11-09 | 2018-03-27 | 山东伊莱特重工股份有限公司 | A kind of large ring sensing heating annealing device |
| CN207619457U (en) * | 2017-11-09 | 2018-07-17 | 山东伊莱特重工股份有限公司 | A kind of induction heating apparatus |
| CN208555941U (en) * | 2018-08-06 | 2019-03-01 | 沈阳市盛华特种铸造有限公司 | A kind of power supply unit of electroslag smelting casting float electrode |
| CN109794732A (en) * | 2018-12-27 | 2019-05-24 | 天津航天长征技术装备有限公司 | A kind of aluminium alloy thin-walled cylinder section rolls-and inula closes accurate forming method |
| CN109663821A (en) * | 2019-01-10 | 2019-04-23 | 燕山大学 | A kind of adjustable inductive answers heating rolling device and method |
| CN209684836U (en) * | 2019-03-27 | 2019-11-26 | 安庆和兴化工有限责任公司 | A kind of PBS plastic master batch automatic material-absorbing interface aligning card holder |
| CN209607513U (en) * | 2019-04-12 | 2019-11-08 | 苏州合恩机电有限公司 | A kind of apparatus for peeling off of cable |
| CN210608982U (en) * | 2019-10-17 | 2020-05-22 | 邵阳学院 | Wind-solar hybrid power generation device based on Internet of things |
| CN111136104A (en) * | 2020-01-20 | 2020-05-12 | 中冶焦耐(大连)工程技术有限公司 | Ultrasonic wave and pulse current mixed auxiliary wedge-shaped cavity profile rolling line and rolling process |
| CN111312928A (en) * | 2020-03-12 | 2020-06-19 | 昆明理工大学 | Semiconductor device for changing band gap through thermal induction |
| CN111235505A (en) * | 2020-03-19 | 2020-06-05 | 中国科学院金属研究所 | Preparation process of high-strength and high-toughness TC25G titanium alloy ring piece |
| CN111337421A (en) * | 2020-03-26 | 2020-06-26 | 保利新联爆破工程集团有限公司 | Environment-friendly blasting vibration measurement sensor auxiliary device |
| CN112974542A (en) * | 2021-01-25 | 2021-06-18 | 张家港中环海陆高端装备股份有限公司 | Stable rolling forming method for large copper alloy ring piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102205482B (en) | Method for producing round-link chain | |
| CN104175062B (en) | All-fiber-texture large-size double-flange fan main shaft forging method | |
| CN102513799A (en) | Ring rolling method for flange of megawatt wind generation set tower | |
| CN112427587B (en) | Preparation method of beryllium-copper ring forging | |
| CN110802373A (en) | Prestress forging method applied to bearing ring | |
| CN102294456A (en) | Manufacturing method for oblique rolling of bimetallic compound seamless steel pipe by centrifugal blank | |
| CN106623704A (en) | Manufacturing method of low stress 2A70 aluminum alloy ring piece | |
| CN107866665A (en) | Million MW class nuclear power generating sets high intensity retaining ring manufacturing process | |
| CN102286714A (en) | Preparation method of copper-nickel-tin alloy | |
| CN104625627B (en) | A kind of preparation method of plasma rotating electrode titanium alloy electrode rod | |
| CN104233137B (en) | Deformation and thermal treatment technology of nichrome alloy | |
| CN112247478A (en) | Copper alloy casting roller sleeve assembling method | |
| CN111235502B (en) | Production method of large-size nickel-based high-temperature alloy forging | |
| CN108950308B (en) | Pure nickel tube for falling film of chemical equipment and preparation method thereof | |
| CN103316910A (en) | Cr12MoV flat steel rolling method | |
| CN101758150B (en) | Rolling formation method of large and medium high-temperature alloy hollow disc-shaped forge piece | |
| CN108237197B (en) | A kind of forging method improving the flaw detection of structural steel large-sized ring part | |
| CN113680933A (en) | Forming method of thin-wall magnesium alloy ring piece | |
| CN104841720A (en) | Method for producing large-caliber and thick-wall Cr15 bushed bearing by using steel ingot | |
| CN108044315A (en) | A kind of manufacturing method of heavy caliber bimetallic composite corrosion proof seamless tubular goods | |
| CN108746440B (en) | A kind of high cylindrical forged piece segmentation milling method of large-sized high-temperature alloy | |
| CN104227344B (en) | Production method of GH5188 square exhaust nozzle used for aircraft engine | |
| CN108396270B (en) | Method for producing α, nearly α or α + β titanium alloy bar | |
| CN111069332B (en) | Preparation method of small-diameter thin-wall molybdenum and molybdenum alloy pipe | |
| CN108672622A (en) | The high pure titanacycle part stable rolling technique of cylindrical thin wall |
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 |