CN108085466A - A kind of spline normalizing process - Google Patents
A kind of spline normalizing process Download PDFInfo
- Publication number
- CN108085466A CN108085466A CN201711207605.8A CN201711207605A CN108085466A CN 108085466 A CN108085466 A CN 108085466A CN 201711207605 A CN201711207605 A CN 201711207605A CN 108085466 A CN108085466 A CN 108085466A
- Authority
- CN
- China
- Prior art keywords
- spline
- normalizing process
- heating
- millimeters
- less
- 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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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
- C21D1/28—Normalising
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
The invention discloses a kind of spline normalizing process of technical field of mechanical processing, the normalizing process of the spline includes the following steps：S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace, the distance between wall is not less than 60 millimeters after spline and burner hearth, away from both sides not less than 30 millimeters, is not less than 120 millimeters away from fire door；S2：Heating：It is uniformly heating to 860 920 degrees Celsius rapidly；S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1 1.5 is small；S4：Cooling：Spline after step S3 heat preservations is cooled down by the way of oil cooling, so that spline is cooled to room temperature, a kind of spline normalizing process that the invention proposes, unbalance microstructure can be eliminated, the strength of stability of spline is improved, ensures the toughness and mechanical performance of spline, and reduces the production cycle, the energy and cost have been saved, has met production needs.
Description
Technical field
The present invention relates to technical fields of mechanical processing, are specially a kind of spline normalizing process.
Background technology
Normalizing is that steel is heated as complete austenite structure state, the operation cooled down after heat preservation.In spline
In production process, normalizing is carried out to spline so that the even tissue of spline removes spline residual stress, and improve spline can
Machinability, so as to improve the mechanical performance of spline.Existing spline normalizing process is complicated for operation, and cost is excessively high, and produces
Spline intensity it is poor, fatigue life is short, can not meet requirement.For this purpose, a kind of it is proposed that spline normalizing process.
The content of the invention
It is mentioned above in the background art existing to solve it is an object of the invention to provide a kind of spline normalizing process
Spline normalizing process is complicated for operation, and cost is excessively high, and the spline intensity produced is poor, and fatigue life is short, and can not meet makes
The problem of with requiring.
To achieve the above object, the present invention provides following technical solution：A kind of spline normalizing process, the positive firer of the spline
Skill includes the following steps：
S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace；
S2：Heating：It is uniformly heating to 860-920 degrees Celsius rapidly；
S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1-1.5 is small；
S4：Cooling：Spline after step S3 heat preservations is cooled down by the way of oil cooling so that spline is cooled to
Room temperature.
Preferably, in the step S1, when spline is put into glowing furnace, the distance between wall is not less than 60 after spline and burner hearth
Millimeter away from both sides not less than 30 millimeters, is not less than 120 millimeters away from fire door.
Preferably, in the step S2, when spline is put into glowing furnace, it is necessary to be preheated to glowing furnace, preheating temperature
For 500-600 degrees Celsius.
Preferably, the heating rate in the step S2 is 10-12 degrees seconds Celsius.
Preferably, in the step S4, it is necessary to be cooled to 450-500 degrees Celsius in stove before spline is using oil cooling.
Preferably, in the step S4, the cooling means of oil cooling is used will to be carried out in the oil of spline immersion flowing cold
But, oily flow velocity is 3-5 ms/min.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of spline normalizing process that the invention proposes, can disappear
Except unbalance microstructure, the strength of stability of spline is improved, ensures the toughness and mechanical performance of spline, and reduce the production cycle, saved
The about energy and cost meet production needs.
Description of the drawings
Fig. 1 is normalizing process flow chart of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of spline normalizing process：
Embodiment 1
The normalizing process of the spline includes the following steps：
S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace, when spline is put into glowing furnace,
The distance between wall is not less than 60 millimeters after spline and burner hearth, away from both sides not less than 30 millimeters, is not less than 120 millimeters away from fire door；
S2：Heating：When spline is put into glowing furnace, it is necessary to be preheated to glowing furnace, preheating temperature is 500 degrees Celsius,
Rapid to be uniformly heating to 860 degrees Celsius, heating rate is 10 degrees seconds Celsius；
S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1 is small；
S4：Cooling：Spline after step S3 heat preservations by the way of oil cooling is cooled down, spline is immersed and is flowed
Oil in cooled down, oily flow velocity is 3 ms/min so that spline is cooled to room temperature, spline using before oil cooling, it is necessary to
450 degrees Celsius are cooled in stove.
Embodiment 2
The normalizing process of the spline includes the following steps：
S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace, when spline is put into glowing furnace,
The distance between wall is not less than 60 millimeters after spline and burner hearth, away from both sides not less than 30 millimeters, is not less than 120 millimeters away from fire door；
S2：Heating：When spline is put into glowing furnace, it is necessary to be preheated to glowing furnace, preheating temperature is 600 degrees Celsius,
Rapid to be uniformly heating to 920 degrees Celsius, heating rate is 12 degrees seconds Celsius；
S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1.5 is small；
S4：Cooling：Spline after step S3 heat preservations by the way of oil cooling is cooled down, spline is immersed and is flowed
Oil in cooled down, oily flow velocity is 5 ms/min so that spline is cooled to room temperature, spline using before oil cooling, it is necessary to
500 degrees Celsius are cooled in stove.
Embodiment 3
The normalizing process of the spline includes the following steps：
S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace, when spline is put into glowing furnace,
The distance between wall is not less than 60 millimeters after spline and burner hearth, away from both sides not less than 30 millimeters, is not less than 120 millimeters away from fire door；
S2：Heating：When spline is put into glowing furnace, it is necessary to be preheated to glowing furnace, preheating temperature is 550 degrees Celsius,
Rapid to be uniformly heating to 890 degrees Celsius, heating rate is 11 degrees seconds Celsius；
S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1.25 is small；
S4：Cooling：Spline after step S3 heat preservations by the way of oil cooling is cooled down, spline is immersed and is flowed
Oil in cooled down, oily flow velocity is 4 ms/min so that spline is cooled to room temperature, spline using before oil cooling, it is necessary to
475 degrees Celsius are cooled in stove.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of spline normalizing process, it is characterised in that：The normalizing process of the spline includes the following steps：
S1：Installation：Spline is packed into trolley, then trolley and spline are put into glowing furnace；
S2：Heating：It is uniformly heating to 860-920 degrees Celsius rapidly；
S3：Heat preservation：It waits after the completion of heating up, when heat preservation 1-1.5 is small；
S4：Cooling：Spline after step S3 heat preservations is cooled down by the way of oil cooling so that spline is cooled to room
Temperature.
2. a kind of spline normalizing process according to claim 1, it is characterised in that：In the step S1, spline, which is put into, to be quenched
During stove, the distance between wall, away from both sides not less than 30 millimeters, is not less than not less than 60 millimeters away from fire door after spline and burner hearth
120 millimeters.
3. a kind of spline normalizing process according to claim 1, it is characterised in that：In the step S2, it is put into spline
, it is necessary to be preheated to glowing furnace during glowing furnace, preheating temperature is 500-600 degrees Celsius.
4. a kind of spline normalizing process according to claim 1, it is characterised in that：Heating rate in the step S2 is
10-12 degrees seconds Celsius.
5. a kind of spline normalizing process according to claim 1, it is characterised in that：In the step S4, used in spline
, it is necessary to be cooled to 450-500 degrees Celsius in stove before oil cooling.
6. a kind of spline normalizing process according to claim 1, it is characterised in that：In the step S4, using oil cooling
Cooling means is to immerse in the oil of flowing spline and cool down, and oily flow velocity is 3-5 ms/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207605.8A CN108085466A (en) | 2017-11-27 | 2017-11-27 | A kind of spline normalizing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207605.8A CN108085466A (en) | 2017-11-27 | 2017-11-27 | A kind of spline normalizing process |
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| Publication Number | Publication Date |
|---|---|
| CN108085466A true CN108085466A (en) | 2018-05-29 |
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ID=62173026
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711207605.8A Pending CN108085466A (en) | 2017-11-27 | 2017-11-27 | A kind of spline normalizing process |
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| Country | Link |
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| CN (1) | CN108085466A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541139A (en) * | 2019-10-18 | 2019-12-06 | 洪新阳 | carburizing and quenching method and carburizing and quenching equipment for internal spline of half axle gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886165A (en) * | 2010-07-02 | 2010-11-17 | 镇江大力液压马达有限责任公司 | Heat treatment process for low-carbon multi-element alloy steel |
| CN103215428A (en) * | 2013-05-13 | 2013-07-24 | 许昌远东传动轴股份有限公司 | Thermal treatment method of spline shaft head of transmission shaft |
| CN104561467A (en) * | 2013-10-29 | 2015-04-29 | 青岛齐力铸钢有限公司 | Pre-heat treatment and delayed quenching process for 45CrNiMoVA steel |
| CN105586546A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Machining manufacturing process for spline shaft made of high-manganese steel |
| CN105671255A (en) * | 2016-02-01 | 2016-06-15 | 浙江德福精密驱动制造有限公司 | Normalizing process of forge piece |
| CN106978573A (en) * | 2017-02-28 | 2017-07-25 | 王涛 | A kind of potassium steel automobile clutch spline and its manufacture method |
-
2017
- 2017-11-27 CN CN201711207605.8A patent/CN108085466A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886165A (en) * | 2010-07-02 | 2010-11-17 | 镇江大力液压马达有限责任公司 | Heat treatment process for low-carbon multi-element alloy steel |
| CN103215428A (en) * | 2013-05-13 | 2013-07-24 | 许昌远东传动轴股份有限公司 | Thermal treatment method of spline shaft head of transmission shaft |
| CN104561467A (en) * | 2013-10-29 | 2015-04-29 | 青岛齐力铸钢有限公司 | Pre-heat treatment and delayed quenching process for 45CrNiMoVA steel |
| CN105586546A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Machining manufacturing process for spline shaft made of high-manganese steel |
| CN105671255A (en) * | 2016-02-01 | 2016-06-15 | 浙江德福精密驱动制造有限公司 | Normalizing process of forge piece |
| CN106978573A (en) * | 2017-02-28 | 2017-07-25 | 王涛 | A kind of potassium steel automobile clutch spline and its manufacture method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541139A (en) * | 2019-10-18 | 2019-12-06 | 洪新阳 | carburizing and quenching method and carburizing and quenching equipment for internal spline of half axle gear |
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| PB01 | Publication | ||
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Application publication date: 20180529 |