CN106734785A - Stainless steel structure bimetal copper-steel ring parts rolling forming method - Google Patents
Stainless steel structure bimetal copper-steel ring parts rolling forming method Download PDFInfo
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- CN106734785A CN106734785A CN201611093498.6A CN201611093498A CN106734785A CN 106734785 A CN106734785 A CN 106734785A CN 201611093498 A CN201611093498 A CN 201611093498A CN 106734785 A CN106734785 A CN 106734785A
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- Prior art keywords
- stainless steel
- steel ring
- rolling
- billet
- steel
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Classifications
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- 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
Abstract
The invention discloses a kind of stainless steel structure bimetal copper-steel ring parts rolling forming method, its step is：First respectively by stainless steel, structure Steel Bar jumping-up, punching, pre-rolling into stainless steel ring billet and structural steel ring billet, the outside that stainless steel ring billet is enclosed within structural steel ring billet is placed on looping mill together and is rolled, obtain stainless steel structure bimetal copper-steel ring.The method derives rolling deformation drag ratio by bimetallic rolling ratio, determines rolling deformation temperature, and roll forming is carried out so as to be heated separately to corresponding temperature, obtains the good bimetallic ring of performance, size.The method is used for bimetallic ring parts rolling forming.
Description
Technical field
The present invention relates to a kind of looping mill rolling roll-forming method, more particularly to stainless steel-structure bimetal copper-steel ring is rolled
Manufacturing process processed.
Background technology
Bimetallic ring is the compound ring being made up of two kinds of different metals, by various modifications and connection skill between ring
Art is combined closely, and inside and outside ring will not be separated under external force.Compared with single ferrule piece, bimetallic ring can be abundant
Two kinds of respective optimum performances of metal are played, not only with combination properties such as excellent physics, chemistry, mechanics, can also be saved
A large amount of precious metals, reduce production cost, thus bimetallic ring be widely used in machinery, automobile, train, ship, metallurgy,
The industrial circles such as chemical industry, the energy, Aero-Space.At present, the main manufacture methods of bimetallic ring are to first pass through ring rolling work
Skill distinguishes two monometallic rings of roll forming, then two monometallic ring combinations are assembled into bimetallic ring.Due to two
Monometallic ring separates roll forming, causes the method operation many, wastes time and energy, low production efficiency.And two of roll forming
When monometallic ring is combined assembling, only there is elastic deformation or small plastic deformation in ring contact interface, so as to cause the party
The bimetallic ring interracial contact of method manufacture is of poor quality, and bonding strength is low, it is impossible to meet high performance double metal ring military service performance
With the requirement of service life.
Bimetallic ring rolling refers to that two kinds of metal ring billets are nested together to be rolled, in the operation of rolling, due to metal
The factor such as characteristic of the resistance of deformation with temperature and material in itself it is relevant, it is easy to cause deformation uneven, and cause rolling to be lost
Lose.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of deformation temperature of metal material in deformation process using control,
The roll forming of bimetallic ring is realized, the good bimetallic ring of performance, size is obtained.
In order to solve the above technical problems, stainless steel of the present invention-structure bimetal copper-steel ring parts rolling forming method, its skill
Art scheme is comprised the following steps：
Stainless steel, structural steel are cutting into bar by certain specification respectively, then by jumping-up, punching, pre-rolling into not
Rust steel loop base and structural steel ring billet, the internal diameter of stainless steel ring billet are equal to the external diameter of structural steel ring billet；Stainless steel ring billet is added respectively
Structural steel ring billet is heated to 820 ± 10 DEG C of insulations by heat to 800 ± 10 DEG C of insulations；Stainless steel ring billet is enclosed within structural steel ring billet
Outside be placed on together on looping mill and rolled, obtain stainless steel-structure bimetal copper-steel ring, wherein, stainless steel ring
Rolling is than being K1, structural steel ring rolling to compare be K2；K1/K2=σs/σs', in formula, σsFor stainless steel ring billet rolling deformation is anti-
Power, σs' it is structural steel ring billet rolling deformation drag.
The stainless steel ring billet rolling deformation drag is σs=n σ0, wherein, n is stainless steel at a temperature of corresponding deformation is rolled
Thermal parameter coefficient, σ0It is stainless steel resistance of deformation at normal temperatures.
The structural steel ring billet rolling deformation drag is σs'=n ' σ0', wherein, n ' is structural steel in rolling corresponding deformation temperature
Thermal parameter coefficient under degree, σ0' it is structural steel resistance of deformation at normal temperatures.
The stainless steel is 1Cr12Ni2WmoVNb steel.
The structural steel is 40CrNiMoA steel.
Compared with prior art, beneficial effects of the present invention are as follows：
Stainless steel of the present invention-structure bimetal copper-steel ring parts rolling forming method, first according to bimetallic ring most
Whole size, designs stainless steel ring billet and structural steel ring billet, and determines that K is compared in the rolling of stainless steel ring and structural steel ring respectively1、
K2, further according to K1/K2=σs/σs' determine stainless steel ring billet and structural steel rolling deformation drag σs、σs', so that it is determined that stainless steel ring
The heating-up temperature of part and structural steel ring.At the corresponding temperature, stainless steel ring billet and structural steel ring billet are nested together rolling, from
And obtain the good bimetallic ring of performance, size.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is bi-metal rolling process schematic.
Specific embodiment
Implementing stainless steel of the present invention-structure bimetal copper-steel ring parts rolling forming method needs to provide Forge Heating
The equipment such as stove, forcing press, manipulator.Stainless steel and 40CrNiMoA structures with China's material trademark as 1Cr12Ni2WmoVNb
The specific embodiment of the method is illustrated as a example by steel：
The main chemical elements content (percentage by weight) of the 1Cr12Ni2WmoVNb steel is：C content 0.11%~
0.17%th, containing Mn amounts≤0.60%, si content≤0.60%, containing Cr amounts 11.00%~12.00%, ni content 1.80%~
2.20%th, containing W amounts 0.7%~1.0%, containing Mo amounts 0.80%~1.20%, V content 0.20%~0.30%, containing Nb amounts
0.15%~0.30%, P content≤0.030%, containing S amount≤0.020%, balance of Fe.
The main chemical elements content (percentage by weight) of the 40CrNiMoA steel is：C content 0.36%~0.44%, contain
Mn measures 0.50%~0.80%, si content 0.17%~0.37%, is measured containing S amounts≤0.020%, P content≤0.020%, containing Cr
0.60%~0.90%, ni content 1.25%~1.75%, containing Mo amount 0.15%~0.25%, balance of Fe.
The step of this method, is as follows：
1Cr12Ni2WmoVNb steel, 40CrNiMoA steel are cutting into bar by certain specification respectively, then by jumping-up,
Punching, pre-rolling into 1Cr12Ni2WmoVNb steel loops base 4 and 40CrNiMoA steel loops base 5,1Cr12Ni2WmoVNb steel loops base 4
Internal diameter is equal to the external diameter of 40CrNiMoA steel loops base 5；1Cr12Ni2WmoVNb steel loops base 4 is heated to 800 ± 10 DEG C of guarantors respectively
Temperature, 820 ± 10 DEG C of insulations are heated to by 40CrNiMoA steel loops base 5；1Cr12Ni2WmoVNb steel loops base 4 is enclosed within 40CrNiMoA
The outside of steel loop base 5 is placed on looping mill and is rolled together, as shown in figure 1, stainless steel-structure bimetal copper-steel ring is obtained,
Wherein, it is K that the rolling of stainless steel ring is compared1, structural steel ring rolling to compare be K2；K1/K2=σs/σs', in formula, σsFor stainless
Steel loop base rolling deformation drag, σs' it is structural steel ring billet rolling deformation drag.
The rolling deformation drag of the stainless steel ring billet 4 is σs=n σ0, wherein, n is stainless steel in rolling corresponding deformation temperature
Under thermal parameter coefficient, σ0It is stainless steel resistance of deformation at normal temperatures.
The rolling deformation drag of the structural steel ring billet 5 is σs'=n ' σ0', wherein, n ' is structural steel in rolling corresponding deformation
At a temperature of thermal parameter coefficient, σ0' it is structural steel resistance of deformation at normal temperatures.
Claims (5)
1. a kind of stainless steel-structure bimetal copper-steel ring parts rolling forming method, it is characterised in that comprise the following steps：
Stainless steel, structural steel are cutting into bar by certain specification respectively, then by jumping-up, punching, pre-rolling into stainless steel
Ring billet and structural steel ring billet, the internal diameter of stainless steel ring billet are equal to the external diameter of structural steel ring billet；Stainless steel ring billet is heated to respectively
800 ± 10 DEG C of insulations, 820 ± 10 DEG C of insulations are heated to by structural steel ring billet；Stainless steel ring billet is enclosed within the outer of structural steel ring billet
Face is placed on looping mill and is rolled together, obtains stainless steel-structure bimetal copper-steel ring, wherein, the rolling of stainless steel ring
Than being K1, structural steel ring rolling to compare be K2；K1/K2=σs/σs', in formula, σsIt is stainless steel ring billet rolling deformation drag, σs′
It is structural steel ring billet rolling deformation drag.
2. stainless steel according to claim 1-structure bimetal copper-steel ring parts rolling forming method, it is characterised in that described
Stainless steel ring billet rolling deformation drag is σs=n σ0, wherein, n is thermal parameter system of the stainless steel at a temperature of corresponding deformation is rolled
Number, σ0It is stainless steel resistance of deformation at normal temperatures.
3. stainless steel according to claim 1-structure bimetal copper-steel ring parts rolling forming method, it is characterised in that described
Structural steel ring billet rolling deformation drag is σs'=n ' σ0', wherein, n ' is heating power ginseng of the structural steel at a temperature of corresponding deformation is rolled
Number system number, σ0' it is structural steel resistance of deformation at normal temperatures.
4. stainless steel according to claim 1-structure bimetal copper-steel ring parts rolling forming method, it is characterised in that described
Stainless steel is 1Cr12Ni2WmoVNb steel.
5. stainless steel according to claim 1-structure bimetal copper-steel ring parts rolling forming method, it is characterised in that described
Structural steel is 40CrNiMoA steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611093498.6A CN106734785A (en) | 2016-12-01 | 2016-12-01 | Stainless steel structure bimetal copper-steel ring parts rolling forming method |
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| CN201611093498.6A CN106734785A (en) | 2016-12-01 | 2016-12-01 | Stainless steel structure bimetal copper-steel ring parts rolling forming method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435997A (en) * | 2017-08-16 | 2018-08-24 | 贵州安大航空锻造有限责任公司 | High temperature alloy-rustless steel double-metal ring parts rolling forming method |
Citations (7)
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| JPS54102278A (en) * | 1978-01-31 | 1979-08-11 | Mitsubishi Heavy Ind Ltd | Composite working device for ring body |
| CN1586754A (en) * | 2004-09-21 | 2005-03-02 | 武汉理工大学 | Process for rolling and forming external step section ring piece |
| CN101829745A (en) * | 2010-04-23 | 2010-09-15 | 武汉理工大学 | Cold ring rolling forming method for double-flute section ring |
| CN102125972A (en) * | 2010-12-10 | 2011-07-20 | 贵州安大航空锻造有限责任公司 | Method for rolling and shaping structural steel high cylindrical ring forged piece |
| CN103042142A (en) * | 2013-01-15 | 2013-04-17 | 武汉理工大学 | Precise roll forming method for bimetallic rings |
| 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 |
| CN105195714A (en) * | 2015-09-23 | 2015-12-30 | 太原科技大学 | Method for casting, rolling and forming inner layer Q345B and outer layer 40 chromium (Cr) composite rings |
-
2016
- 2016-12-01 CN CN201611093498.6A patent/CN106734785A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102278A (en) * | 1978-01-31 | 1979-08-11 | Mitsubishi Heavy Ind Ltd | Composite working device for ring body |
| CN1586754A (en) * | 2004-09-21 | 2005-03-02 | 武汉理工大学 | Process for rolling and forming external step section ring piece |
| CN101829745A (en) * | 2010-04-23 | 2010-09-15 | 武汉理工大学 | Cold ring rolling forming method for double-flute section ring |
| CN102125972A (en) * | 2010-12-10 | 2011-07-20 | 贵州安大航空锻造有限责任公司 | Method for rolling and shaping structural steel high cylindrical ring forged piece |
| CN103042142A (en) * | 2013-01-15 | 2013-04-17 | 武汉理工大学 | Precise roll forming method for bimetallic rings |
| 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 |
| CN105195714A (en) * | 2015-09-23 | 2015-12-30 | 太原科技大学 | Method for casting, rolling and forming inner layer Q345B and outer layer 40 chromium (Cr) composite rings |
Non-Patent Citations (2)
| Title |
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| 程懿麒: "轧制变形抗力的计算", 《科技资讯》 * |
| 贺毓辛、茹铮等: "《轧制理论若干问题》", 31 January 1983 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435997A (en) * | 2017-08-16 | 2018-08-24 | 贵州安大航空锻造有限责任公司 | High temperature alloy-rustless steel double-metal ring parts rolling forming method |
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