CN207483786U - A kind of annealing device for alloy spring steel - Google Patents
A kind of annealing device for alloy spring steel Download PDFInfo
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- CN207483786U CN207483786U CN201721398373.4U CN201721398373U CN207483786U CN 207483786 U CN207483786 U CN 207483786U CN 201721398373 U CN201721398373 U CN 201721398373U CN 207483786 U CN207483786 U CN 207483786U
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Abstract
The utility model provides a kind of annealing device for alloy spring steel, skip car (1) including being sequentially connected setting, heating furnace (2), quenching tank (3), tempering bath (4), cleaning device (5) and lower truck (6), the first hoistable platform (34) is equipped between heating furnace (2) and quenching tank (3), the second hoistable platform (43) is equipped between quenching tank (3) and tempering bath (4), and for controlling skip car (1), lower truck (6), first hoistable platform (34), the movement of second hoistable platform (43), for controlling heating furnace (2), the control system (7) of the temperature of quenching tank (3) and tempering bath (4).A kind of annealing device for alloy spring steel described in the utility model, compact-sized, easy for operation, obtained alloy spring steel product is tempered martensite+Lower Bainite Duplex Structure, has higher hardness.
Description
Technical field
The utility model is related to technical field of metal heat treatment, and in particular to one kind fills for alloy spring Heat-Treatment of Steel
It puts.
Background technology
Alloy spring steel is the steel grade for manufacturing spring or other elastic parts, has high yield point and Qu Qiang
Than, elastic limit, anti-fatigue performance, there is certain plasticity and toughness, certain quenching degree is not easy decarburization and is not easy to overheat,
To ensure that spring has high intensity and enough toughness, the mode of generally use quenching+average tempering is heat-treated it.
In order to promote the performance of metal material and service life, it usually needs to metal material using the side of heating and cooling
Method is handled, this process is the heat treatment of metal material.In traditional heat treatment process, mostly using oil, water or sky
For gas as hardening media, cooling velocity is slow, and quenching degree is poor, easily generates troostite, and then influence the transition rate of martensite.
Mostly using simple shaft furnace and box stove heat, this Equipment for Heating Processing relies on prior heat treatment equipment mostly
Manual operation although easy to operate, lacks continuity, and quality is not easy to ensure, can encounter such as workpiece oxidation seriously, tissue turns
Become the problems such as efficiency is low, and hardness is uneven, while equipment is high using limitation, consume energy and seriously polluted.
Application No. is 201220768953.4 to disclose a kind of pre-treatment production line, including fixed feeding platform, transmission device,
Heating furnace, quenching refrigerating device, high tempering stove, low-temp temper furnace, air cooler, discharging platform and upper computer control system, and
Linearly arrange.
Application No. is 201410672281.5 to disclose a kind of martensite of high chromium Bearing Steel Parts, bainite isothermal salt bath
Quenching Production Line, including unit, the unit include be arranged in order the main heating furnace of loading platform, preheating furnace, bell-type,
Quenching salt tank, isothermal salt bath, air-cooled, biliquid cleaning machine, discharging platform, further include one for unit operate workpiece turn material
Truck；The preheating furnace, the main heating furnace of bell-type can be passed through protection gas and enriched gas；Isothermal salt bath waits thermohalines including multistation
Slot.
Above-mentioned annealing device is chiefly used in the larger material such as bearing steel, therefore equipment usually has more complicated structure,
Floor space is vast, does not apply to the alloy spring Heat-Treatment of Steel with small volume.Common alloy spring steel heat treatment process
There are martempering, austempering etc., and the required heating of different process for quenching and cooling time, temperature
Degree differs, and used equipment is also varied, for example, widely used tool spring steel marquench now
Technique is that workpiece is heated to high temperature in air-heating furnace, makes metal material austenitizing, subsequently into being quenched in cooling bath
Cooling, hardening media select mostly oil or water, and then obtain martensitic structure, promoted material hardness, finally in tempering furnace into
Row low temperature or average tempering to reduce material internal stress, and increase its toughness.Its heat treatment process need to use not in different phase
Same equipment does not have the special equipment for the alloy spring steel heat treatment for being specially adapted for smaller size smaller also.
Invention content
The purpose of this utility model is that it is excessively complicated and uncomfortable to solve above-mentioned Equipment for Heating Processing commonly used in the prior art
For small volume alloy spring steel the technical issues of, a kind of annealing device for alloy spring steel is provided, is had tight
The structure gathered, it is easy for operation, the alloy of the tempered martensite+Lower Bainite Duplex Structure with higher hardness can be obtained
Spring steel.
The utility model provides a kind of annealing device for alloy spring steel, including：
Skip car：It is arranged on ground rail and can be moved along the direction of track, for automatic in process of production
Charging；
Heating furnace：It is connected with skip car, for being heated to material；
Quenching tank：One end is equipped with the first hoistable platform being connected with heating furnace, for holding salt bath medium and adding to passing through
Material after heat carries out quenching treatment, and material can be moved with the first hoistable platform in salt bath medium；
Tempering bath：One end is equipped with the second hoistable platform being connected with quenching tank, for the material after quenching treatment
Carry out temper；
Cleaning device：One end is connected with tempering bath, for the material after temper to be cooled down, cleaned and dried
It is dry；
Lower truck：Be arranged on ground rail and can be moved along the direction of track, is connected with cleaning device, for
Automatic material returning in production process；
Control system：For controlling the movement of skip car, lower truck, the first hoistable platform, the second hoistable platform, for controlling
The temperature of heating furnace processed, quenching tank and tempering bath.
The first hoistable platform that can move vertically is set between heating furnace and quenching tank and in quenching tank and tempering bath
Between the second hoistable platform that can move vertically is set so that material can be automatic between heating furnace, quenching tank, tempering bath
Operation avoids labor intensity height, the high equivalent risk of security risk that manual operation is brought；First hoistable platform and second liter simultaneously
Drop platform is vertically arranged, and the structure for making entire Equipment for Heating Processing is compacter.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, skip car and
Lower truck includes car body, is arranged on car body upper surface for placing the material frame of material, is arranged in material frame for qualifier
Expect the locating slot of movement and be arranged on the drive of vehicle bottom.Skip car and lower truck can be according to the technique weeks of program setting
Phase carries out automatic feed and the material returned.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, heating furnace packet
The furnace body being fixedly mounted on the ground is included, the preceding fire door that furnace body side is connected with skip car is arranged on, is arranged on furnace body opposite side
The rear fire door being connected with the first hoistable platform is arranged on the heating room in furnace body, is arranged on the indoor club transmission system of heating,
The heating rod being arranged below club transmission system is arranged on furnace body and heats the heating furnace insulating layer between room and be arranged on stove
Exhaust-gas treatment component above body and it is arranged on the exhaust manifolds being located on furnace body below rear fire door.Setting roller stick passes in heating furnace
The dynamic visual working condition of system realizes the transmission of both forward and reverse directions and the transformation of friction speed, and the heating for making material is more uniform.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, heating furnace is protected
Warm layer is formed by alumina-silicate ceramic fibre material preparation.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, quenching tank packet
The quenching slot shell being fixedly mounted on the ground is included, the first salt bath isothermobath of quenching tank enclosure interior is arranged on, is arranged on and quenches
Quenching tank insulating layer between fiery slot shell and the first salt bath isothermobath is arranged on above the first salt bath isothermobath and heating furnace phase
The first hoistable platform even, the quenching tank heating system being arranged on above the first salt bath isothermobath are arranged on quenching tank heating system
Pipe heat exchanger below uniting, the air-cooler being arranged on above quenching tank heating system are arranged below the first salt bath isothermobath
Quenching tank cooling system and the first agitating device for being arranged in the first salt bath isothermobath.First agitating device can be according to workpiece
Shape and technological requirement control mixing speed, meet the requirement to metallographic structure transition rate, hardness after quenching.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, tempering bath packet
The tempering slot shell fixed on the ground is included, the second salt bath isothermobath of tempering bath enclosure interior is arranged on, is arranged on the second salt
The second hoistable platform being connected on bath isothermobath with quenching tank is arranged on returning between tempering slot shell and the second salt bath isothermobath
Fiery slot insulating layer and the second agitating device being arranged on above the second salt bath isothermobath.
A kind of annealing device for alloy spring steel described in the utility model, it is preferred that, cleaning device
Including stent, the sink being connected on stent with tempering bath is arranged on, the spray equipment being arranged on above sink is arranged on spray
Exhaust system above shower device is arranged on stent and drying tank that sink is connected and the air inducing being arranged on above drying tank
System.
The utility model in use, includes the following steps：
S1, charging：Material is transported to heating furnace by skip car；
S2, heating：Material is heated to 810~870 DEG C in heating furnace, high pure nitrogen and richness are passed through in heating process
Change gas；
S3, quenching：Material is quickly entered in the first salt bath isothermobath by the first hoistable platform and quenched, the first salt bath isothermal
The temperature of slot is 180~220 DEG C, and the cool time is 5~15min, and salt bath is stirred in quenching process；
S4, tempering：The second salt bath is sent to by the second hoistable platform by the material after step S3 quenching treatments
Isothermobath carries out isothermal tempering processing, and temperature is 220~300 DEG C, and soaking time is 6~8h；
S5, cooling：After step S4 tempers, the second hoistable platform rises, and is transported to cleaning device, leads to
Air is crossed to be cooled down；
S6, cleaning：It is cleaned by material after cooling by spray equipment using hot water spray, water temperature is 75~85 DEG C；
S7, drying：Material after cleaning is transported on drying tank and is dried, the lower truck material returned is sent to after drying,
Finished product after being heat-treated.
Annealing device provided by the utility model only have skip car, heating furnace, quenching tank, tempering bath, cleaning device, under
Truck and control device composition, simplify current thermal treatment equipment, at the same between heating furnace and quenching tank and quenching tank with time
The first hoistable platform and the second hoistable platform equipped with vertical movement between fiery slot, the degree of automation of the equipment of raising, simultaneously
The entirety arrangement for making equipment is compacter, simple to operate.
Description of the drawings
Fig. 1 is a kind of annealing device front view for alloy spring steel；
Fig. 2 is a kind of annealing device vertical view for alloy spring steel；
Fig. 3 is to be a kind of for the annealing device skip car of alloy spring steel and the front view of lower truck；
Fig. 4 is a kind of front view of annealing device heating furnace for alloy spring steel；
Fig. 5 is a kind of front view of annealing device quenching tank for alloy spring steel；
Fig. 6 is a kind of front view of annealing device tempering bath for alloy spring steel；
Fig. 7 is a kind of front view of annealing device cleaning device for alloy spring steel；
Fig. 8 is a kind of annealing device application method flow chart for alloy spring steel；
Fig. 9 is the metallographic structure figure of the alloy spring steel after Overheating Treatment in embodiment 1.
Reference numeral：
1st, skip car；11st, car body；12nd, material frame；13rd, locating slot；14th, drive；2nd, heating furnace；21st, furnace body；22nd, it is preceding
Fire door；23rd, rear fire door；24th, room is heated；25th, club transmission system；26th, heating rod；27th, heating furnace insulating layer；28th, at exhaust gas
Manage component；29th, exhaust manifolds；3rd, quenching tank；31st, slot shell is quenched；31st, the first salt bath isothermobath；33rd, quenching tank insulating layer；
34th, the first hoistable platform；35th, quenching tank heating system；36th, pipe heat exchanger；37th, air-cooler；38th, quenching tank cooling system；
39th, the first agitating device；4th, tempering bath；41st, it is tempered slot shell；42nd, the second salt bath isothermobath；43rd, the second hoistable platform；44、
Tempering bath insulating layer；45th, the second agitating device；5th, cleaning device；51st, stent；52nd, sink；53rd, spray equipment；54th, it is vented
System；55th, drying tank；56th, induced draught system；6th, lower truck；7th, control device.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.
Embodiment 1
As shown in Fig. 1~2, the utility model provides a kind of annealing device for alloy spring steel, including：
Skip car 1：It is arranged on ground rail and can be moved along the direction of track, for automatic in process of production
Charging；As shown in figure 3, including car body 11,11 upper surface of car body is arranged on for placing the material frame 12 of material, is arranged on object
It is used to limit the locating slot 13 of material movement in material frame 12 and is arranged on the drive 14 of 11 bottom of car body；
Heating furnace 2：It is connected with skip car, for being heated to material；As shown in figure 4, including being fixedly mounted on ground
On furnace body 21, be arranged on the preceding fire door 22 that 21 side of furnace body is connected with skip car 1, be arranged on 21 opposite side of furnace body and first liter
The connected rear fire door 23 of platform 34 is dropped, is arranged on the heating room 24 in furnace body 21, the club power train being arranged in heating room 24
System 25 is arranged on the heating rod 26 of 25 lower section of club transmission system, and the heating furnace for being arranged on furnace body 21 and heating between room 24 is protected
Warm layer 27 and the exhaust-gas treatment component 28 being arranged on above furnace body 21 and the row being arranged on furnace body 21 below rear fire door 22
Airway 29；
Quenching tank 3：One end is equipped with the first hoistable platform 34 being connected with heating furnace 2, for holding salt bath medium and to passing through
The material crossed after heating carries out quenching treatment, and material can be moved with the first hoistable platform 34 in salt bath medium；Such as Fig. 5 institutes
Show, including quenching slot shell 31 on the ground is fixedly mounted, the first salt bath isothermobath being arranged on inside quenching slot shell 31
32, the quenching tank insulating layer 33 being arranged between quenching 31 and first salt bath isothermobath 32 of slot shell is arranged on first salt bath etc.
The first hoistable platform 34 that warm 32 top of slot is connected with heating furnace 2, the quenching tank for being arranged on 32 top of the first salt bath isothermobath add
Hot systems 35 are arranged on the pipe heat exchanger 36 of 35 lower section of quenching tank heating system, are arranged on 34 top of quenching tank heating system
Air-cooler 37, be arranged on the quenching tank cooling system 38 of the lower section of the first salt bath isothermobath 32 and be arranged on the first salt bath isothermal
The first agitating device 39 in slot 32；
Tempering bath 4：One end is equipped with the second hoistable platform 43 being connected with quenching tank 3, for after quenching treatment
Material carries out temper；As shown in fig. 6, including the tempering slot shell 41 fixed on the ground, it is arranged on tempering slot shell 41
The second internal salt bath isothermobath 42, is arranged on the second hoistable platform 43 being connected on the second salt bath isothermobath 42 with quenching tank 3,
It is arranged on the tempering bath insulating layer 44 being tempered between 41 and second salt bath isothermobath 42 of slot shell and is arranged on the second salt bath isothermal
Second agitating device 45 of 42 top of slot；
Cleaning device 5：One end is connected with tempering bath 4, for being cooled down, cleaned to the material after temper and
Drying；As shown in fig. 7, comprises stent 51, is arranged on the sink 52 being connected on stent 51 with tempering bath 4, is arranged on sink
The spray equipment 53 of 52 tops is arranged on the exhaust system 54 of 53 top of spray equipment, is arranged on stent 51 and sink 52
Connected drying tank 55 and the induced draught system 56 being arranged on above drying tank 55；
Lower truck 6：It is arranged on ground rail and can be moved along the direction of track, be connected with cleaning device 5, be used for
Automatic material returning in process of production；As shown in figure 3, including car body 11,11 upper surface of car body is arranged on for placing the object of material
Material frame 12 is arranged in material frame 12 to limit the locating slot 13 of material movement and be arranged on the drive of 11 bottom of car body
14；
Control system 7：For controlling the fortune of skip car 1, lower truck 6, the first hoistable platform 34, the second hoistable platform 43
It is dynamic, for controlling the temperature of heating furnace 2, quenching tank 3 and tempering bath 4.
The present embodiment in use, as shown in figure 8, including the following steps：
S1, charging：Material is transported to heating furnace by skip car 1；
S2, heating：Material is heated to 810~870 DEG C in heating furnace 2, be passed through in heating process high pure nitrogen and
Enriched gas；
S3, quenching：Material is quickly entered in the first salt bath isothermobath 32 by the first hoistable platform 34 and quenched, the first salt
The temperature for bathing isothermobath 32 is 180~220 DEG C, and the cool time is 5~15min, and salt bath is stirred in quenching process；
S4, tempering：The second salt is sent to by the second hoistable platform 43 by the material after step S3 quenching treatments
It bathes isothermobath 42 and carries out isothermal tempering processing, temperature is 220~300 DEG C, and soaking time is 6~8h；
S5, cooling：After step S4 tempers, the second hoistable platform 43 rises, and material is transported to cleaning
Device 5, is cooled down by air；
S6, cleaning：It is cleaned by material after cooling by spray equipment 53 using hot water spray, water temperature is 75~85 DEG C；
S7, drying：Material after cleaning is transported on drying tank 55 and is dried, lower truck 6 is sent to after drying and is moved back
Material, you can the finished product after being heat-treated.
The finished product that the present embodiment obtains is the alloy bullet of tempered martensite+Lower Bainite Duplex Structure with higher hardness
Spring steel, metallographic structure figure are as shown in Figure 9.
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of annealing device for alloy spring steel, it is characterised in that：Including
Skip car (1)：Be arranged on ground rail and can be moved along the direction of track, in process of production automatically into
Material；
Heating furnace (2)：It is connected with the skip car (1), for being heated to material；
Quenching tank (3)：One end is equipped with the first hoistable platform (34) being connected with the heating furnace (2), for holding salt bath medium
And quenching treatment is carried out to the material after heating, material can be as the first hoistable platform (34) be in the salt bath medium
Movement；
Tempering bath (4)：One end is equipped with the second hoistable platform (43) being connected with the quenching tank (3), for by quenching
Material after reason carries out temper；
Cleaning device (5)：One end is connected with the tempering bath (4), for being cooled down, clearly to the material after temper
It washes and dries；
Lower truck (6)：It is arranged on ground rail and can be moved along the direction of track, is connected with the cleaning device (5),
For automatic material returning in process of production；
Control system (7)：For controlling the skip car (1), the lower truck (6), first hoistable platform (34), described
The movement of second hoistable platform (43), for controlling the temperature of the heating furnace (2), the quenching tank (3) and the tempering bath (4)
Degree.
2. a kind of annealing device for alloy spring steel according to claim 1, it is characterised in that：The skip car
(1) and the lower truck (6) includes car body (11), is arranged on the car body (11) upper surface for placing the material frame of material
(12), it is arranged in the material frame (12) to limit the locating slot (13) of the material movement and be arranged on the car body
(11) drive (14) of bottom.
3. a kind of annealing device for alloy spring steel according to claim 1, it is characterised in that：The heating furnace
(2) including furnace body (21) on the ground is fixedly mounted, it is arranged on what the furnace body (21) side was connected with the skip car (1)
Preceding fire door (22) is arranged on the rear fire door (23) that the furnace body (21) opposite side is connected with first hoistable platform (34), if
The heating room (24) in the furnace body (21) is put, the club transmission system (25) being arranged in heating room (24), setting
Heating rod (26) below the club transmission system (25) is arranged between the furnace body (21) and heating room (24)
Heating furnace insulating layer (27), the exhaust-gas treatment component (28) being arranged on above the furnace body (21) and be arranged on the furnace body
(21) exhaust manifolds (29) being located below the rear fire door (23).
4. a kind of annealing device for alloy spring steel according to claim 3, it is characterised in that：The heating furnace
Insulating layer (27) is formed by alumina-silicate ceramic fibre material preparation.
5. a kind of annealing device for alloy spring steel according to claim 1, it is characterised in that：The quenching tank
(3) including quenching slot shell (31) on the ground is fixedly mounted, it is arranged on the first internal salt of the quenching slot shell (31)
Isothermobath (32) is bathed, the quenching tank being arranged between the quenching slot shell (31) and the first salt bath isothermobath (32) is kept the temperature
Layer (33) is arranged on the first hoistable platform (34) being connected above the first salt bath isothermobath (32) with the heating furnace (2),
The quenching tank heating system (35) being arranged on above the first salt bath isothermobath (32), is arranged on the quenching tank heating system
(35) pipe heat exchanger (36) below, the air-cooler (37) being arranged on above the quenching tank heating system (35), is arranged on
Quenching tank cooling system (38) below the first salt bath isothermobath (32) and it is arranged on the first salt bath isothermobath (32)
Interior the first agitating device (39).
6. a kind of annealing device for alloy spring steel according to claim 1, it is characterised in that：The tempering bath
(4) including the tempering slot shell (41) fixed on the ground, it is arranged on second internal salt bath of the tempering slot shell (41) etc.
Warm slot (42) is arranged on the second hoistable platform (43) being connected on the second salt bath isothermobath (42) with the quenching tank (3),
The tempering bath insulating layer (44) being arranged between the tempering slot shell (41) and the second salt bath isothermobath (42) and setting
The second agitating device (45) above the second salt bath isothermobath (42).
7. a kind of annealing device for alloy spring steel according to claim 1, it is characterised in that：The cleaning dress
It puts (5) and includes stent (51), be arranged on the sink (52) being connected on the stent (51) with the tempering bath (4), be arranged on
Spray equipment (53) above the sink (52), the exhaust system (54) being arranged on above the spray equipment (53), if
It puts the drying tank (55) being connected on the stent (51) with the sink (52) and is arranged on above the drying tank (55)
Induced draught system (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398373.4U CN207483786U (en) | 2017-10-27 | 2017-10-27 | A kind of annealing device for alloy spring steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398373.4U CN207483786U (en) | 2017-10-27 | 2017-10-27 | A kind of annealing device for alloy spring steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207483786U true CN207483786U (en) | 2018-06-12 |
Family
ID=62477690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721398373.4U Active CN207483786U (en) | 2017-10-27 | 2017-10-27 | A kind of annealing device for alloy spring steel |
Country Status (1)
| Country | Link |
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| CN (1) | CN207483786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107663570A (en) * | 2017-10-27 | 2018-02-06 | 北京卡特刘科技有限公司 | A kind of annealing device for alloy spring steel |
| CN111115144A (en) * | 2020-01-23 | 2020-05-08 | 爱协林热处理系统(北京)有限公司 | Automatic production line for heat treatment of workpieces with automatic process transfer transport vehicle |
-
2017
- 2017-10-27 CN CN201721398373.4U patent/CN207483786U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107663570A (en) * | 2017-10-27 | 2018-02-06 | 北京卡特刘科技有限公司 | A kind of annealing device for alloy spring steel |
| CN111115144A (en) * | 2020-01-23 | 2020-05-08 | 爱协林热处理系统(北京)有限公司 | Automatic production line for heat treatment of workpieces with automatic process transfer transport vehicle |
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