CN108796181A - One discharge plate member is heat-treated annealing process - Google Patents
One discharge plate member is heat-treated annealing process Download PDFInfo
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- CN108796181A CN108796181A CN201810687261.3A CN201810687261A CN108796181A CN 108796181 A CN108796181 A CN 108796181A CN 201810687261 A CN201810687261 A CN 201810687261A CN 108796181 A CN108796181 A CN 108796181A
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- stove
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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
- 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
- C21D1/74—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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
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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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a discharge plate members to be heat-treated annealing process, it is characterised in that：Include the following steps S1：Element coil material is placed in heat-treatment furnace, protective gas is filled in heat treated stove, then the temperature in stove is risen to 740-760 DEG C, keeps the temperature 5-7h；S2：It is passed through the ethane that flow is 0.2-0.3m3/h toward stove is added, the temperature of heating is then cooled to 350-400 DEG C with 40 DEG C/h of speed；S3：Continue the temperature in stove being cooled to 390-410 DEG C with 80 DEG C/h of speed；S4：Continue furnace temperature is air-cooled to 300-310 DEG C with 20 DEG C/h of speed；S5：Element coil material naturally cools to room temperature with stove, it is better that spheroidizing effect has been reached using the technique of heating, heat preservation, first stage cooling, second stage cooling, phase III cooling and fourth stage natural cooling, fastener wire ductility is high, hardness is low, it is suitble to subsequent plastic processing forming, the low advantage of product shaping cracking rate, while the technological process is simple, it is not high to equipment requirement, production efficiency is high, and cost is relatively low.
Description
Technical field
The invention belongs to disk member technical field of heat treatment, concretely relate to discharge plate member heat treatment spheroidizing work
Skill.
Background technology
When producing fastener wire, after carrying out Slow cooling or annealing to fastener wire according to prior art, hardness
Higher, cracked, crack site need to be cut off and be utilized by less serious case, and the fastener wire that severe one directly results in production is scrapped, seriously
Influence the quality and lumber recovery of fastener wire.
Spheroidizing is to improve one of the Basic Ways of structure of steel and performance, and the main purpose of spheroidizing is to make steel material
Carbide spheroidization in the microstructure of material reduces the hardness of material, improves the plasticity of material, reduces the resistance of deformation of material,
Material is set to be easy to plastic processing forming.Fastener is by two or more parts（Or component）It is fastenedly connected whole as one
The general name of used one kind machine components, ideal performance and tissue will be obtained in fastener wire production when body, it is important to
Select suitable annealing process.
Currently, when producing fastener wire, after carrying out Slow cooling or annealing to fastener wire according to prior art,
Hardness is higher, and large quantities of fastener wires are cracked, and crack site need to be cut off and be utilized by less serious case, and severe one directly results in the tight of production
Firmware wire rod is scrapped, and the quality and lumber recovery of fastener wire are seriously affected.
Invention content
The object of the present invention is to provide a discharge plate members to be heat-treated annealing process, and fastener wire ductility is made to carry
High, hardness reduces, and to be suitble to subsequent plastic processing to shape, makes the reduction of product shaping cracking rate.
In order to solve the above technical problems, the object of the present invention is achieved like this：
One discharge plate member is heat-treated annealing process, it is characterised in that：Include the following steps
S1：Element coil material is placed in heat-treatment furnace, protective gas is filled in heat treated stove, then the temperature in stove is risen to
740-760 DEG C, keep the temperature 5-7h；
S2：It is passed through the ethane that flow is 0.2-0.3m3/h toward stove is added, then by the temperature of heating with 40 DEG C/h of speed
Degree is cooled to 350-400 DEG C；
S3：Continue the temperature in stove being cooled to 390-410 DEG C with 80 DEG C/h of speed；
S4：Continue furnace temperature is air-cooled to 300-310 DEG C with 20 DEG C/h of speed；
S5：Element coil material naturally cools to room temperature with stove.
Preferred embodiment on the basis of said program and as said program：The step S1 purity is 99.999%
Nitrogen closes industrial nitrogen, dissociated methanol gas is filled in heat treated stove when the temperature in stove is warming up to 650 DEG C.
Preferred embodiment on the basis of said program and as said program：After step S2, methanol decomposition is closed
The industrial nitrogen that purity is 99.99% is filled in gas, then heat treated stove.
Preferred embodiment on the basis of said program and as said program：The cooling of described step S2, S3, S4 are logical
Air-cooled mode is crossed to be cooled down.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：Using heating, heat preservation, first stage it is cooling,
Second stage is cooling, the phase III is cooling and the technique of fourth stage natural cooling to have reached spheroidizing effect better, tightly
Firmware wire rod ductility is high, hardness is low, and subsequent plastic processing forming, the low advantage of product shaping cracking rate is suitble to simultaneously should
Technological process is simple, not high to equipment requirement, and production efficiency is high, and cost is relatively low.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the application clearer, below in conjunction with embodiment, to technical solution into
Row clearly and completely describes,
Embodiment one
One discharge plate member is heat-treated annealing process, includes the following steps
S1：Element coil material is placed in heat-treatment furnace, is filled with 99.999% nitrogen in heat treated stove, then by the temperature in stove
740 DEG C are risen to, 5-7h is kept the temperature, in this temperature-rise period, when the temperature in stove is warming up to 650 DEG C, industrial nitrogen is closed, to heat
Dissociated methanol gas is filled in treatment furnace；
S2：It is passed through the ethane that flow is 0.2-0.3m3/h toward stove is added, then by the temperature of heating with 40 DEG C/h of speed
Degree is cooled to 350-400 DEG C；The Industrial Nitrogen that purity is 99.99% is filled in dissociated methanol gas, then heat treated stove at this point, closing
Gas.
S3：Continue the temperature in stove being cooled to 390-410 DEG C with 80 DEG C/h of speed；
S4：Continue furnace temperature is air-cooled to 300-310 DEG C with 20 DEG C/h of speed；
S5：Element coil material naturally cools to room temperature with stove.
Preferably, step S2, the cooling of S3, S4 are cooled down by air-cooled mode.
Element coil material ductility that treated is high, hardness is low, is suitble to subsequent plastic processing forming, product shaping cracking rate
It is low.
Embodiment two
One discharge plate member is heat-treated annealing process, includes the following steps
S1：Element coil material is placed in heat-treatment furnace, is filled with 99.999% nitrogen in heat treated stove, then by the temperature in stove
750 DEG C are risen to, 6h is kept the temperature, in this temperature-rise period, when the temperature in stove is warming up to 650 DEG C, industrial nitrogen is closed, at heat
It is filled with dissociated methanol gas in reason stove；
S2：It is passed through the ethane that flow is 0.25m3/h toward stove is added, it is then that the temperature of heating is cold with 40 DEG C/h of speed
But to 375 DEG C；The industrial nitrogen that purity is 99.99% is filled in dissociated methanol gas, then heat treated stove at this point, closing.
S3：Continue the temperature in stove being cooled to 400 DEG C with 80 DEG C/h of speed；
S4：Continue furnace temperature is air-cooled to 305 DEG C with 20 DEG C/h of speed；
S5：Element coil material naturally cools to room temperature with stove.
Preferably, step S2, the cooling of S3, S4 are cooled down by air-cooled mode.
Element coil material ductility that treated is high, hardness is low, is suitble to subsequent plastic processing forming, product shaping cracking rate
It is low.
Embodiment three
One discharge plate member is heat-treated annealing process, includes the following steps
S1：Element coil material is placed in heat-treatment furnace, is filled with 99.999% nitrogen in heat treated stove, then by the temperature in stove
760 DEG C are risen to, 7h is kept the temperature, in this temperature-rise period, when the temperature in stove is warming up to 650 DEG C, industrial nitrogen is closed, at heat
It is filled with dissociated methanol gas in reason stove；
S2：It is passed through the ethane that flow is 0.3m3/h toward stove is added, it is then that the temperature of heating is cold with 40 DEG C/h of speed
But to 400 DEG C；The industrial nitrogen that purity is 99.99% is filled in dissociated methanol gas, then heat treated stove at this point, closing.
S3：Continue the temperature in stove being cooled to 410 DEG C with 80 DEG C/h of speed；
S4：Continue furnace temperature is air-cooled to 310 DEG C with 20 DEG C/h of speed；
S5：Element coil material naturally cools to room temperature with stove.
Preferably, step S2, the cooling of S3, S4 are cooled down by air-cooled mode.
Element coil material ductility that treated is high, hardness is low, is suitble to subsequent plastic processing forming, product shaping cracking rate
It is low.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, should all be covered by within protection scope of the present invention.
Claims (4)
1. a discharge plate member is heat-treated annealing process, it is characterised in that：Include the following steps
S1：Element coil material is placed in heat-treatment furnace, protective gas is filled in heat treated stove, then the temperature in stove is risen to
740-760 DEG C, keep the temperature 5-7h；
S2：It is passed through the ethane that flow is 0.2-0.3m3/h toward stove is added, then by the temperature of heating with 40 DEG C/h of speed
Degree is cooled to 350-400 DEG C；
S3：Continue the temperature in stove being cooled to 390-410 DEG C with 80 DEG C/h of speed；
S4：Continue furnace temperature is air-cooled to 300-310 DEG C with 20 DEG C/h of speed；
S5：Element coil material naturally cools to room temperature with stove.
2. discharge plate member according to claim 1 is heat-treated annealing process, it is characterised in that：The step S1 purity
Industrial nitrogen is closed when the temperature in stove is warming up to 650 DEG C for 99.999% nitrogen, being filled with methanol in heat treated stove splits
It vents one's spleen.
3. discharge plate member according to claim 1 is heat-treated annealing process, it is characterised in that：After step S2,
It closes and is filled with the industrial nitrogen that purity is 99.99% in dissociated methanol gas, then heat treated stove.
4. discharge plate member according to claim 1 is heat-treated annealing process, it is characterised in that：The step S2, S3,
The cooling of S4 is cooled down by air-cooled mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687261.3A CN108796181A (en) | 2018-06-28 | 2018-06-28 | One discharge plate member is heat-treated annealing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687261.3A CN108796181A (en) | 2018-06-28 | 2018-06-28 | One discharge plate member is heat-treated annealing process |
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| Publication Number | Publication Date |
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| CN108796181A true CN108796181A (en) | 2018-11-13 |
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| CN201810687261.3A Pending CN108796181A (en) | 2018-06-28 | 2018-06-28 | One discharge plate member is heat-treated annealing process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481455A (en) * | 2020-11-26 | 2021-03-12 | 江苏联峰能源装备有限公司 | Non-quenched and tempered steel destressing annealing process for direct cutting |
| CN112553420A (en) * | 2020-12-02 | 2021-03-26 | 太仓富勒姆纳米新材料科技有限公司 | Strong-convection spheroidizing annealing process for rivets for automobile bearing retainer |
| CN114875225A (en) * | 2022-04-20 | 2022-08-09 | 江苏佳杰特种螺钉有限公司 | Heat treatment method for wire rod for producing and processing fastener |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994710A (en) * | 2012-12-28 | 2013-03-27 | 东莞市科力钢铁线材有限公司 | Spheroidizing annealing process of superplasticity fastener wire rod |
| CN103014261A (en) * | 2012-11-27 | 2013-04-03 | 大连经济技术开发区圣洁真空技术开发有限公司 | Link plate balling and annealing technology |
| CN103757195A (en) * | 2013-11-26 | 2014-04-30 | 常熟市福熙机械零部件制造有限公司 | Spheroidizing annealing process of fastener wire rod |
| CN103993140A (en) * | 2014-04-19 | 2014-08-20 | 东莞市科力钢铁线材有限公司 | Spheroidizing annealing technology of low-hardness fastener wires |
-
2018
- 2018-06-28 CN CN201810687261.3A patent/CN108796181A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014261A (en) * | 2012-11-27 | 2013-04-03 | 大连经济技术开发区圣洁真空技术开发有限公司 | Link plate balling and annealing technology |
| CN102994710A (en) * | 2012-12-28 | 2013-03-27 | 东莞市科力钢铁线材有限公司 | Spheroidizing annealing process of superplasticity fastener wire rod |
| CN103757195A (en) * | 2013-11-26 | 2014-04-30 | 常熟市福熙机械零部件制造有限公司 | Spheroidizing annealing process of fastener wire rod |
| CN103993140A (en) * | 2014-04-19 | 2014-08-20 | 东莞市科力钢铁线材有限公司 | Spheroidizing annealing technology of low-hardness fastener wires |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481455A (en) * | 2020-11-26 | 2021-03-12 | 江苏联峰能源装备有限公司 | Non-quenched and tempered steel destressing annealing process for direct cutting |
| CN112553420A (en) * | 2020-12-02 | 2021-03-26 | 太仓富勒姆纳米新材料科技有限公司 | Strong-convection spheroidizing annealing process for rivets for automobile bearing retainer |
| CN114875225A (en) * | 2022-04-20 | 2022-08-09 | 江苏佳杰特种螺钉有限公司 | Heat treatment method for wire rod for producing and processing fastener |
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Application publication date: 20181113 |
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