CN106884077A - A kind of cold drawn material two-part electricity quenching softening annealing process of high temperature alloy - Google Patents
A kind of cold drawn material two-part electricity quenching softening annealing process of high temperature alloy Download PDFInfo
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- CN106884077A CN106884077A CN201710036664.7A CN201710036664A CN106884077A CN 106884077 A CN106884077 A CN 106884077A CN 201710036664 A CN201710036664 A CN 201710036664A CN 106884077 A CN106884077 A CN 106884077A
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- 238000000137 annealing Methods 0.000 title claims abstract description 29
- 238000010791 quenching Methods 0.000 title claims abstract description 24
- 230000000171 quenching effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000956 alloy Substances 0.000 title abstract description 29
- 229910045601 alloy Inorganic materials 0.000 title abstract description 29
- 239000000463 material Substances 0.000 title abstract description 14
- 230000005611 electricity Effects 0.000 title description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention discloses a kind of electrically heated softening annealing process of two-part power, and soft annealing is carried out to the cold drawn blank of high temperature alloy instead of Continuous Roller bottom annealing furnace using electric quenching apparatus.After twisting with the fingers point, the sectional dimension of tip is small, resistance is big so that the position temperature rise is faster than other positions for cold drawn blank, will cause blank burning or disconnected point.In order to solve the problems, such as burning and disconnected point, avoiding repeatedly cutting point causes lumber recovery to decline, the present invention uses two-part power electrical heating process, first carry out low-power preheating, blank twist with the fingers tip position and other spot temperatures it is synchronously constant after, then carry out higher-wattage electrical heating, quickly water quenching after blank to temperature, this technique effectively solves blank and twists with the fingers tip position burning or disconnected point problem, improves the lumber recovery of big specification hexagonal high temperature alloy cold-drawn material.
Description
Technical field
The invention belongs to the cold drawn material softening annealing process of high temperature alloy, and in particular to electric quenching apparatus are cold drawn to high temperature alloy
The application of material soft annealing and a kind of electrically heated softening annealing process of two-part power, it is adaptable to which big specification pole and hexagonal are high
The soft annealing of the cold drawn material of temperature alloy.
Background technology
Because high temperature alloy resistance of deformation is big, the cold drawn material of high temperature alloy of hexagonal specification needs to carry out multiple tracks to circular blank
Secondary draw rear it is formable (finished product hexagonal opposite distance more than 30mm the cold drawn material of high temperature alloy generally require 8 passages with
On draw), being smoothed out and obtain good draw surface quality for each passage draw, the draw of each passage it
Before need to carry out soft annealing to blank.At present, the domestic soft annealing equipment generally used to the cold drawn material of high temperature alloy is company
Continuous formula roller bottom (coal gas/natural gas) annealing furnace, due to the limitation of Continuous Roller bottom annealing furnace self-condition, blank can not after coming out of the stove
Overall water quenching is rapidly carried out, therefore the bating effect of high temperature alloy is not good, is unfavorable for follow-up draw processing, causes draw table
Face scuffing, crackle burst.Foreign countries have carried out technology blockage for the production technology of high temperature alloy, for the softening skill of cold drawn material
Art is avoided mentioning, and the softening technology of the domestic cold drawn material of high temperature alloy can not be broken through all the time.
The content of the invention
The present invention discloses a kind of cold drawn material two-part electricity quenching softening annealing process of high temperature alloy, solves big specification hexagonal high
The problem of the cold drawn blank soft annealing effect on driving birds is not good of temperature alloy.
The present invention carries out softening and moves back instead of Continuous Roller bottom annealing furnace using electric quenching apparatus to the cold drawn blank of high temperature alloy
Fire；Electric quenching apparatus operation principle is made with fast from the blank as resistance by controlling power (power reaches as high as 600kw)
Speed is heated up, and quickly water quenching is carried out after reaching required temperature, and the cold drawn hardening of high temperature alloy can be significantly reduced.Cold drawn blank is by twisting with the fingers
After point, the sectional dimension of tip is small, resistance is big so that the position temperature rise is faster than other positions, will cause blank burning or disconnected
Point.In order to solve the problems, such as burning and disconnected point, it is to avoid repeatedly cutting point causes lumber recovery to decline, and the present invention is using two-part power electricity
Heating technique, i.e., first carry out low-power preheating, blank twist with the fingers tip position and other spot temperatures it is synchronously constant after, then carry out compared with Gao Gong
Rate electrical heating, quick water quenching after blank to temperature.The method effectively solves blank and twists with the fingers tip position burning or disconnected point problem.
Concrete technology step is as follows：
(1) electric quenching apparatus are hardening media using water, and cooling water is circulated water management by equipment cooling tower, in order to carry
The bating effect of height quenching, inflow temperature requirement is less than 30 DEG C；
(2) the requirement of two-part power computer heating control is reasonable, first paragraph heating power can not too high (130kW~370kW), keep away
Exempt from tip burning and be broken, heating steady temperature is, second segment power more suitable less than 200 DEG C~400 DEG C of annealing temperature
After (220kW~500kW) is heated to 1000 DEG C~1100 DEG C of temperature, fast break is answered to stop heating, it is to avoid blank burning；
(3) blank heating is to after temperature, it is desirable to which quick water quenching, blank to temperature stops being heated into the water time no more than 5s.
The present invention has following advantages：
1. electric quenching apparatus can make to be heated up with from the blank as resistance, and quickly water quenching is carried out after reaching required temperature；
Blank heating is uniform, bating effect is notable, is conducive to the carrying out of the follow-up draw of blank, it is ensured that high temperature alloy cold-drawn material has good
Surface quality.
2. blank sth. made by twisting tip position can be effectively solved using two-part power electrical heating process to be led to temperature prior to other positions
The burning of cause and disconnected point problem, it is to avoid the electricity annealing before each passage draw needs to cut the problem of point, improves big specification six
The lumber recovery of angle high temperature alloy cold-drawn material.
Brief description of the drawings
Fig. 1 is the mirco structure photo after the electricity quenching of GH4738 alloy blanks；
Fig. 2 is the mirco structure photo after the electricity quenching of GH4033 alloy blanks；
Fig. 3 is the mirco structure photo after the electricity quenching of GH2696 alloy blanks；
Fig. 4 is the mirco structure photo after the electricity quenching of GH2696 alloy blanks.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1
Ni-based difficult deformation GH4738 alloy hexagonal finished size S9mm, blank diameter is Φ 14mm, length 3.2m~3.5m；
Blank first paragraph heating power is 150kW, and blank twists with the fingers tip position and normal portions temperature is constant rear (740 DEG C), second segment heating
Power rises to 230kW, and to after 1100 DEG C, blank Putting into water rapidly is quenched, and (stopping is heated to short into the time of water blank heating
In 5s), after annealing blank hardness (HBW) be 222, softening rate is 42.0%, blank surface without scaling loss, grain structure such as Fig. 1 institutes
Show, 4 grades of grain size, without burning and superheating phenomenon.
Embodiment 2
Ni-based GH4033 alloys hexagonal finished size S19mm, blank diameter is Φ 25mm, length 2.0m~2.5m, blank
First paragraph heating power is 180kW, and blank twists with the fingers tip position and normal portions temperature is constant rear (800 DEG C), second segment heating power
Rise to 300kW, to after 1080 DEG C, blank Putting into water rapidly is quenched, and (stopping is heated to being less than into the time of water blank heating
5s), after annealing blank hardness (HBW) be 179, softening rate is 33.5%, blank surface without scaling loss, as shown in Fig. 2 grain size
4.5 grades, without burning and superheating phenomenon.
Embodiment 3
Iron-based GH2696 alloy hexagonal finished size S32mm, blank diameter is Φ 42mm, length 3.2m~3.6m, blank
First paragraph heating power is 350kW, and blank twists with the fingers tip position and normal portions temperature is constant rear (900 DEG C), second segment heating power
Rise to 450kW, to after 1060 DEG C, blank Putting into water rapidly is quenched, and (stopping is heated to being less than into the time of water blank heating
5s), after annealing blank hardness (HBW) be 176, softening rate is 22.1%, blank surface without scaling loss, as shown in figure 3, grain size 8
Level, without burning and superheating phenomenon.
Embodiment 4
Iron-based GH2696 alloy hexagonal finished size S36mm, blank diameter is Φ 47mm, length 2.8m~3.2m, blank
First paragraph heating power is 350kW, and blank twists with the fingers tip position and normal portions temperature is constant rear (900 DEG C), second segment heating power
Rise to 450kW, to after 1080 DEG C, blank Putting into water rapidly is quenched, and (stopping is heated to being less than into the time of water blank heating
5s), after quenching blank hardness (HBW) be 169, softening rate is 22.1%, blank surface without scaling loss, as shown in figure 4, grain size
7.5 grades, without burning and superheating phenomenon.
Hardness balance before and after the cold drawn blank electricity quenching soft annealing of the high temperature alloy of table 1.
Table 1
Claims (5)
1. a kind of electrically heated softening annealing process of two-part power, it is characterised in that：The softening annealing process uses two sections
Formula power electrical heating, i.e., first carry out low-power preheating, blank twist with the fingers tip position and other spot temperatures it is synchronously constant after, then carry out compared with
High power electrical heating, quick water quenching after blank to temperature；
The two-part power electrical heating, first paragraph heating power be 130kW~370kW, it is to avoid tip burning and be broken, heat
Steady temperature is more suitable less than 200 DEG C~400 DEG C of annealing temperature, and second segment power is 220kW~500kW, is heated to temperature
After 1000 DEG C~1100 DEG C, fast break stops heating, it is to avoid blank burning；
The water quenching, inflow temperature requirement is less than 30 DEG C, and blank to temperature stopping is heated to being no more than 5s into the interval of water time.
2. a kind of electrically heated softening annealing process of two-part power according to claim 1, it is characterised in that：The blank
First paragraph heating power is 150kW, after blank sth. made by twisting tip position is constant with 740 DEG C of normal portions temperature, second segment heating power liter
To 230kW, blank heating is to 1100 DEG C.
3. a kind of electrically heated softening annealing process of two-part power according to claim 1, it is characterised in that：The blank
First paragraph heating power is 180kw, after blank sth. made by twisting tip position is constant with 800 DEG C of normal portions temperature, second segment heating power liter
To 300kw, blank heating is to 1080 DEG C.
4. a kind of electrically heated softening annealing process of two-part power according to claim 1, it is characterised in that：The blank
First paragraph heating power is 350kw, after blank sth. made by twisting tip position is constant with 900 DEG C of normal portions temperature, second segment heating power liter
To 450kw, blank heating is to 1060 DEG C.
5. a kind of electrically heated softening annealing process of two-part power according to claim 1, it is characterised in that：The blank
First paragraph heating power is 350kw, after blank sth. made by twisting tip position is constant with 900 DEG C or so of normal portions temperature, second segment heating work(
Rate rises to 450kw, and blank heating is to 1080 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036664.7A CN106884077B (en) | 2017-01-18 | 2017-01-18 | Two-stage electric quenching softening annealing process for high-temperature alloy cold-drawn material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036664.7A CN106884077B (en) | 2017-01-18 | 2017-01-18 | Two-stage electric quenching softening annealing process for high-temperature alloy cold-drawn material |
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| Publication Number | Publication Date |
|---|---|
| CN106884077A true CN106884077A (en) | 2017-06-23 |
| CN106884077B CN106884077B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710036664.7A Active CN106884077B (en) | 2017-01-18 | 2017-01-18 | Two-stage electric quenching softening annealing process for high-temperature alloy cold-drawn material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852913A (en) * | 2019-02-26 | 2019-06-07 | 成立航空技术有限公司 | A kind of heat-treatment technology method of GH2696 high temperature alloy |
| CN115896419A (en) * | 2022-12-15 | 2023-04-04 | 中航上大高温合金材料股份有限公司 | Preparation method and application of GH2132 alloy bar |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943693A1 (en) * | 1998-03-16 | 1999-09-22 | Ovako Steel AB | A method of soft annealing high carbon steel |
| CN101435012A (en) * | 2008-12-03 | 2009-05-20 | 苏州明志铸造有限公司 | Heat treatment device and process for alloy casting |
| US20090301615A1 (en) * | 2006-01-26 | 2009-12-10 | Jacques Montagnon | Method for producing an internal combustion engine valve and valve obtained in this manner |
| CN102676923A (en) * | 2012-05-29 | 2012-09-19 | 上海大学 | Steel with ultra-high thermal conductivity for hot-stamping die and preparation method of steel |
| CN202963027U (en) * | 2012-11-26 | 2013-06-05 | 江苏天舜金属材料集团有限公司 | Heat treatment device producing minor-diameter high-strength high-ductility steel |
| CN103556093A (en) * | 2013-10-30 | 2014-02-05 | 西安航空动力股份有限公司 | Method for improving cold forming performance of GH4090 cold-rolled band |
| CN104480415A (en) * | 2014-12-09 | 2015-04-01 | 抚顺特殊钢股份有限公司 | Processing process of difficult-to-deform high temperature alloy GH141 cold-drawn material |
| CN104878296A (en) * | 2015-06-12 | 2015-09-02 | 合肥东方节能科技股份有限公司 | High vanadium anti-wear alloy material for rolling mill guide roller and rolling mill guide roller heat treatment method |
-
2017
- 2017-01-18 CN CN201710036664.7A patent/CN106884077B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943693A1 (en) * | 1998-03-16 | 1999-09-22 | Ovako Steel AB | A method of soft annealing high carbon steel |
| US20090301615A1 (en) * | 2006-01-26 | 2009-12-10 | Jacques Montagnon | Method for producing an internal combustion engine valve and valve obtained in this manner |
| CN101435012A (en) * | 2008-12-03 | 2009-05-20 | 苏州明志铸造有限公司 | Heat treatment device and process for alloy casting |
| CN102676923A (en) * | 2012-05-29 | 2012-09-19 | 上海大学 | Steel with ultra-high thermal conductivity for hot-stamping die and preparation method of steel |
| CN202963027U (en) * | 2012-11-26 | 2013-06-05 | 江苏天舜金属材料集团有限公司 | Heat treatment device producing minor-diameter high-strength high-ductility steel |
| CN103556093A (en) * | 2013-10-30 | 2014-02-05 | 西安航空动力股份有限公司 | Method for improving cold forming performance of GH4090 cold-rolled band |
| CN104480415A (en) * | 2014-12-09 | 2015-04-01 | 抚顺特殊钢股份有限公司 | Processing process of difficult-to-deform high temperature alloy GH141 cold-drawn material |
| CN104878296A (en) * | 2015-06-12 | 2015-09-02 | 合肥东方节能科技股份有限公司 | High vanadium anti-wear alloy material for rolling mill guide roller and rolling mill guide roller heat treatment method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852913A (en) * | 2019-02-26 | 2019-06-07 | 成立航空技术有限公司 | A kind of heat-treatment technology method of GH2696 high temperature alloy |
| CN115896419A (en) * | 2022-12-15 | 2023-04-04 | 中航上大高温合金材料股份有限公司 | Preparation method and application of GH2132 alloy bar |
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| CN106884077B (en) | 2021-02-23 |
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