CN108070692A - A kind of steel alloy motorcycle accessories annealing process - Google Patents
A kind of steel alloy motorcycle accessories annealing process Download PDFInfo
- Publication number
- CN108070692A CN108070692A CN201711257595.9A CN201711257595A CN108070692A CN 108070692 A CN108070692 A CN 108070692A CN 201711257595 A CN201711257595 A CN 201711257595A CN 108070692 A CN108070692 A CN 108070692A
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- CN
- China
- Prior art keywords
- inner cover
- accessory
- nitrogen
- bell
- hydrogen
- 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.)
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-
- 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
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
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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 Articles (AREA)
Abstract
The present invention relates to accessory processing technique fields, especially a kind of steel alloy motorcycle accessories annealing process, including sealing propertytest, nitrogen prepurge, combustion preheater annealing process step, greatly improve the convection current heat exchange factor in annealing furnace, enhance heat conduction, radiant heating is carried out to accessory using inner cover simultaneously, so that accessory heating is highly uniform, effectively improve the performance of accessory, and without hydrogen injection mode come keep annealing atmosphere so that the consumption of hydrogen reduces two to three one-tenth.
Description
S1, sealing propertytest detect the being sealed property of hydrogen transfer valve of bell type annealing furnace, it is ensured that and hydrogen is not revealed,
The sealing state of the inner cover of bell type annealing furnace, table, bypassing cooling system, circulating fan, discharge bypass is checked simultaneously；
S2, nitrogen prepurge, bell type annealing furnace is connected by nitrogen pot, by inner cover space, circulating fan, bypass cooling system
Air nitrogen displacement in system, nitrogen discharge pipeline and drain line, it is quick-fried to prevent that residual air from forming after being mixed with hydrogen
Fried space；
S3, combustion preheater, after nitrogen pre-purges, inner cover is buckled on table by the suspender started in annealing furnace, stove
Cooling fan is provided on platform, then accessory pre-placing to be annealed lights a fire and inner cover is heated in inner cover, inner cover is copper
Heat is radiated to accessory to be annealed by inner cover processed, inner cover after being heated, and slow heating accessory is to 815 DEG C；
Hydrogen gas tank when accessory is heated to 815 DEG C, is connected bell type annealing furnace by S4, annealing, and bell furnace is replaced with hydrogen
In nitrogen, then to workpiece carry out the first stage isothermal holding, soaking time for 2 it is small when, be then cooled in bell furnace
750 DEG C of progress bottom isothermal holdings, when soaking time is 1.5 small, then slowly cools to 270 DEG C with 45 DEG C/h, finally open
Shower valve on inner cover, the spraying cooling liquid into inner cover, accessory is cooled to room temperature and is come out of the stove.
Embodiment two
A kind of steel alloy motorcycle accessories annealing process, includes the following steps：
S1, sealing propertytest detect the being sealed property of hydrogen transfer valve of bell type annealing furnace, it is ensured that and hydrogen is not revealed,
The sealing state of the inner cover of bell type annealing furnace, table, bypassing cooling system, circulating fan, discharge bypass is checked simultaneously；
S2, nitrogen prepurge, bell type annealing furnace is connected by nitrogen pot, by inner cover space, circulating fan, bypass cooling system
Air nitrogen displacement in system, nitrogen discharge pipeline and drain line, it is quick-fried to prevent that residual air from forming after being mixed with hydrogen
Fried space；
S3, combustion preheater, after nitrogen pre-purges, inner cover is buckled on table by the suspender started in annealing furnace, stove
Cooling fan is provided on platform, then accessory pre-placing to be annealed lights a fire and inner cover is heated in inner cover, inner cover is copper
Heat is radiated to accessory to be annealed by inner cover processed, inner cover after being heated, and slow heating accessory is to 830 DEG C；
Hydrogen gas tank when accessory is heated to 830 DEG C, is connected bell type annealing furnace by S4, annealing, and bell furnace is replaced with hydrogen
In nitrogen, then to workpiece carry out the first stage isothermal holding, soaking time for 3 it is small when, be then cooled in bell furnace
760 DEG C of progress bottom isothermal holdings, when soaking time is 2.0 small, then slowly cools to 280 DEG C with 46 DEG C/h, finally open
Shower valve on inner cover, the spraying cooling liquid into inner cover, accessory is cooled to room temperature and is come out of the stove.
Embodiment three
A kind of steel alloy motorcycle accessories annealing process, includes the following steps：
S1, sealing propertytest detect the being sealed property of hydrogen transfer valve of bell type annealing furnace, it is ensured that and hydrogen is not revealed,
The sealing state of the inner cover of bell type annealing furnace, table, bypassing cooling system, circulating fan, discharge bypass is checked simultaneously；
S2, nitrogen prepurge, bell type annealing furnace is connected by nitrogen pot, by inner cover space, circulating fan, bypass cooling system
Air nitrogen displacement in system, nitrogen discharge pipeline and drain line, it is quick-fried to prevent that residual air from forming after being mixed with hydrogen
Fried space；
S3, combustion preheater, after nitrogen pre-purges, inner cover is buckled on table by the suspender started in annealing furnace, stove
Cooling fan is provided on platform, then accessory pre-placing to be annealed lights a fire and inner cover is heated in inner cover, inner cover is copper
Heat is radiated to accessory to be annealed by inner cover processed, inner cover after being heated, and slow heating accessory is to 845 DEG C；
Hydrogen gas tank when accessory is heated to 845 DEG C, is connected bell type annealing furnace by S4, annealing, and bell furnace is replaced with hydrogen
In nitrogen, then to workpiece carry out the first stage isothermal holding, soaking time for 4 it is small when, be then cooled in bell furnace
770 DEG C of progress bottom isothermal holdings, when soaking time is 2.5 small, then slowly cools to 290 DEG C with 47 DEG C/h, finally open
Shower valve on inner cover, the spraying cooling liquid into inner cover, accessory is cooled to room temperature and is come out of the stove.
Example IV
A kind of steel alloy motorcycle accessories annealing process, includes the following steps：
S1, sealing propertytest detect the being sealed property of hydrogen transfer valve of bell type annealing furnace, it is ensured that and hydrogen is not revealed,
The sealing state of the inner cover of bell type annealing furnace, table, bypassing cooling system, circulating fan, discharge bypass is checked simultaneously；
S2, nitrogen prepurge, bell type annealing furnace is connected by nitrogen pot, by inner cover space, circulating fan, bypass cooling system
Air nitrogen displacement in system, nitrogen discharge pipeline and drain line, it is quick-fried to prevent that residual air from forming after being mixed with hydrogen
Fried space；
S3, combustion preheater, after nitrogen pre-purges, inner cover is buckled on table by the suspender started in annealing furnace, stove
Cooling fan is provided on platform, then accessory pre-placing to be annealed lights a fire and inner cover is heated in inner cover, inner cover is copper
Heat is radiated to accessory to be annealed by inner cover processed, inner cover after being heated, and slow heating accessory is to 860 DEG C；
Hydrogen gas tank when accessory is heated to 860 DEG C, is connected bell type annealing furnace by S4, annealing, and bell furnace is replaced with hydrogen
In nitrogen, then to workpiece carry out the first stage isothermal holding, soaking time for 5 it is small when, be then cooled in bell furnace
780 DEG C of progress bottom isothermal holdings, when soaking time is 3.0 small, then slowly cools to 300 DEG C with 48 DEG C/h, finally open
Shower valve on inner cover, the spraying cooling liquid into inner cover, accessory is cooled to room temperature and is come out of the stove.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of steel alloy motorcycle accessories annealing process, which is characterized in that include the following steps：
S1, sealing propertytest detect the being sealed property of hydrogen transfer valve of bell type annealing furnace, it is ensured that hydrogen is not revealed, simultaneously
The sealing state of the inner cover of bell type annealing furnace, table, bypassing cooling system, circulating fan, discharge bypass is checked；
S2, nitrogen prepurge, connect bell type annealing furnace, by inner cover space, circulating fan, bypassing cooling system, nitrogen by nitrogen pot
It is empty to prevent that residual air from forming explosion after being mixed with hydrogen for air nitrogen displacement in gas discharge pipe and drain line
Between；
S3, combustion preheater, after nitrogen pre-purges, inner cover is buckled on table by the suspender started in annealing furnace, to be annealed
Accessory pre-placing in inner cover, then light a fire and inner cover heated, heat is radiated to be annealed match somebody with somebody by inner cover after being heated
Part, slow heating accessory is to 800-860 DEG C；
Hydrogen gas tank when accessory is heated to 800-860 DEG C, is connected bell type annealing furnace by S4, annealing, and bell furnace is replaced with hydrogen
In nitrogen, then to workpiece carry out the first stage isothermal holding, soaking time for 2-5 it is small when, then cool down in bell furnace
To 750-780 DEG C of progress bottom isothermal holding, when soaking time is 1.5-3.0 small, then slowly cooled to 45-48 DEG C/h
270-300 DEG C, the shower valve on inner cover is finally opened, accessory is cooled to room temperature and comes out of the stove by the spraying cooling liquid into inner cover.
A kind of 2. steel alloy motorcycle accessories annealing process according to claim 1, which is characterized in that the bell-type annealing
Cooling fan is provided on table in stove.
A kind of 3. steel alloy motorcycle accessories annealing process according to claim 1, which is characterized in that the bell-type annealing
Inner cover in stove is copper inner cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257595.9A CN108070692A (en) | 2017-11-30 | 2017-11-30 | A kind of steel alloy motorcycle accessories annealing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257595.9A CN108070692A (en) | 2017-11-30 | 2017-11-30 | A kind of steel alloy motorcycle accessories annealing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108070692A true CN108070692A (en) | 2018-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711257595.9A Pending CN108070692A (en) | 2017-11-30 | 2017-11-30 | A kind of steel alloy motorcycle accessories annealing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108070692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054746A (en) * | 2019-12-31 | 2020-04-24 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling production process of high-carbon steel |
| CN115584384A (en) * | 2022-10-19 | 2023-01-10 | 攀钢集团攀枝花钢钒有限公司 | Method and system for processing high-temperature test incompatibility of bell-type furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341757A (en) * | 2001-08-13 | 2002-03-27 | 宁波宝新不锈钢有限公司 | Hot-rolled stainless steel annealing process under protection of full hydrogen gas |
| CN101760606A (en) * | 2008-12-26 | 2010-06-30 | 宁波宝新不锈钢有限公司 | Control method of protective atmosphere of stainless steel cover type annealing furnace |
| CN102994708A (en) * | 2012-10-16 | 2013-03-27 | 天津市亿博制钢有限公司 | Cover-type furnace annealing process |
| CN104745771A (en) * | 2014-07-29 | 2015-07-01 | 江苏凯特尔工业炉有限公司 | Total-hydrogen bell type furnace annealing method for cold-rolled strip steel |
-
2017
- 2017-11-30 CN CN201711257595.9A patent/CN108070692A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341757A (en) * | 2001-08-13 | 2002-03-27 | 宁波宝新不锈钢有限公司 | Hot-rolled stainless steel annealing process under protection of full hydrogen gas |
| CN101760606A (en) * | 2008-12-26 | 2010-06-30 | 宁波宝新不锈钢有限公司 | Control method of protective atmosphere of stainless steel cover type annealing furnace |
| CN102994708A (en) * | 2012-10-16 | 2013-03-27 | 天津市亿博制钢有限公司 | Cover-type furnace annealing process |
| CN104745771A (en) * | 2014-07-29 | 2015-07-01 | 江苏凯特尔工业炉有限公司 | Total-hydrogen bell type furnace annealing method for cold-rolled strip steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054746A (en) * | 2019-12-31 | 2020-04-24 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling production process of high-carbon steel |
| CN111054746B (en) * | 2019-12-31 | 2021-08-10 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling production process of high-carbon steel |
| CN115584384A (en) * | 2022-10-19 | 2023-01-10 | 攀钢集团攀枝花钢钒有限公司 | Method and system for processing high-temperature test incompatibility of bell-type furnace |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180525 |
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