CN107245561B - A kind of water of HI-chrome cast iron for grinding balls-sky alternately time quenching cooling device and method - Google Patents
A kind of water of HI-chrome cast iron for grinding balls-sky alternately time quenching cooling device and method Download PDFInfo
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- CN107245561B CN107245561B CN201710329949.XA CN201710329949A CN107245561B CN 107245561 B CN107245561 B CN 107245561B CN 201710329949 A CN201710329949 A CN 201710329949A CN 107245561 B CN107245561 B CN 107245561B
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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
- C21D5/00—Heat treatments of cast-iron
-
- 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
- C21D1/62—Quenching devices
-
- 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
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- 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
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
Abstract
The present invention provides a kind of water of HI-chrome cast iron for grinding balls-sky alternating time quenching cooling device and methods, described device includes: to quench cooling feeding mechanism, at least one first time water quenching cooling mechanism, at least one air-cooled mechanism, at least one second of water quenching cooling mechanism and work to terminate discharging mechanism, and HI-chrome cast iron for grinding balls, which passes sequentially through the cooling feeding mechanism of quenching, first time water quenching cooling mechanism, air-cooled mechanism, second of water quenching cooling mechanism and work, terminates discharging mechanism；Water quenching cooling area is made of quenching sink, rotary dial arm, rotating body and flood zone movable passageway；Air cooling zone is made of air-cooled movable passageway, air-cooled promotion movable passageway, elevator and promotion toggle arm.The method is implemented by quenching cooling feed zone, first time water quenching cooling area, air cooling zone, second of water quenching cooling area, work end discharge zone composition.The present invention executes water-sky alternately time quenching cooling technique, solves the technical problem of HI-chrome cast iron for grinding balls water quenching cracking.
Description
Technical field
The present invention relates to heat-treatment quenching cooling fields, and in particular, to a kind of water of HI-chrome cast iron for grinding balls-sky alternately control
When quenching cooler and method.
Background technique
Here quenching cooling refers to the rich chromium cast iron in austenitic state, by with speed appropriate cooling, obtains pre-
The process of phase organization and performance.In this process, it is not reached requirement if the excessively slow organization and performance obtained of cooling rate；
If cooling rate is too fast, although tissue and performance are met the requirements, it may be accompanied by the generation of cracking, cause the report of quenching part
It is useless.The combination of suitable quenching cooling rate or technique and equipment reaches estimated performance to rich chromium cast iron and avoids cracking very
It is important.
The out-line quenching two that HI-chrome cast iron for grinding balls quenching at present is divided into the press quenching after casting or after forging and reheats
Class.After casting or forging after press quenching be will it is cast after or forging after HI-chrome cast iron for grinding balls be delivered directly to Special quenching dress
The quenching for setting progress is cooling, and the medium of use is mostly oils hardening media, organic hardening media and inorganic hardening media；Gao Ge
Out-line quenching after cast-iron grinding ball reheats is cooling, generallys use period heating furnace or continuous furnace is heated, then
HI-chrome cast iron for grinding balls is transferred in quenching tank and carries out quenching cooling in a manner of immersion liquid, the medium of use is mostly that oils quenching is situated between
Matter, organic hardening media and inorganic hardening media.
It is found through being retrieved to existing technical literature, Chen Dong, shadow of the Gu Quanpei hardening media to HI-chrome cast iron for grinding balls performance
University of Fuzhou journal is rung, 1989 (1): 34-38 has studied cooling curve, temperature that HI-chrome cast iron for grinding balls is quenched in different medium
Field, hardening flaw, hardness distribution and the dropping shock test of Ф 60mm abrading-ball on section.The result shows that dry quenching fails to quench
Firmly, water quenching cracks, and oil quenching does not crack the abrading-ball less than Ф 100mm, is obtained using organic hardening media good
Comprehensive mechanical performance, inorganic hardening media are also able to satisfy requirement through appropriate whole tune technique.Due to oils hardening media, organic quenching
Medium and inorganic hardening media have a negative impact to environment, and it is desirable to develop the quenching bosher using water as medium
Skill and equipment.
In order to solve the problems, such as that water quenching is cracked, found through retrieval, Dong Dashan, Jia Xiaoshuai, left instruction is big to wait the novel MQ-P-T skill of
Art applies metal heat treatmet in high chromium casting ball, 2016,41 (1): 18-23, right using water and air as hardening media
The Fe-2.4C-12Cr HI-chrome cast iron for grinding balls of Ф 80mm carries out water-sky alternately time quenching cooling treatment, the results showed that, through water-
HI-chrome cast iron for grinding balls radial stiffness average value after sky alternating time quenching cooling treatment is about 60HRC, than oil quenching rich chromium cast iron
Abrading-ball improves about 5HRC.This researched and solved HI-chrome cast iron for grinding balls water quenching cracking technological problems, but realize automationization with
The quenching cooler of mass is still the problem for restricting HI-chrome cast iron for grinding balls water quenching.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of water of HI-chrome cast iron for grinding balls-skies alternately to control
When quenching cooler and method, the technical problem of HI-chrome cast iron for grinding balls water quenching cracking can be solved very well.
According to the first aspect of the invention, a kind of water-sky alternating time quenching cooling device of HI-chrome cast iron for grinding balls is provided,
Described device includes: to quench cooling feeding mechanism, at least one first time water quenching cooling mechanism, at least one air-cooled mechanism, extremely
Few second of water quenching cooling mechanism and work terminate discharging mechanism, and HI-chrome cast iron for grinding balls passes sequentially through the cooling charger of quenching
Structure, first time water quenching cooling mechanism, air-cooled mechanism, second of water quenching cooling mechanism and work terminate discharging mechanism；Wherein:
The cooling feeding mechanism of the quenching, is moved to first time water quenching cooling mechanism for the HI-chrome cast iron for grinding balls；
First time water quenching cooling mechanism, for carrying out first time Cooling Process to the HI-chrome cast iron for grinding balls, and will
The HI-chrome cast iron for grinding balls after first time water quenching cooling is transferred to the air-cooled mechanism；
The air-cooled mechanism, for carrying out process air cooler to the HI-chrome cast iron for grinding balls Jing Guo first time water quenching cooling,
And will be air-cooled after the HI-chrome cast iron for grinding balls be transferred to second of water quenching cooling mechanism；
Second of water quenching cooling mechanism, for carrying out second of water cooling mistake to the HI-chrome cast iron for grinding balls after air-cooled
Journey, and the HI-chrome cast iron for grinding balls after second of water quenching cooling is transferred to the work terminates discharging mechanism；
The work terminates discharging mechanism, and the HI-chrome cast iron for grinding balls after second of water quenching cooling is moved from device
Out.
Preferably, the cooling feeding mechanism of the quenching, the work terminates discharging mechanism is by fast moving channel group
At for completing the movement of the HI-chrome cast iron for grinding balls.
It is highly preferred that the channel that fast moves is made of the first bottom plate, the first support plate and the first space limiting side plate, it is described
First support plate supports the HI-chrome cast iron for grinding balls, and first space limiting side plate limits the HI-chrome cast iron for grinding balls position, described
One the first support plate and two the first space limiting side plates are connected as one by the first bottom plate, form movable passageway.
Preferably, first time water quenching cooling mechanism and second of water quenching cooling mechanism are by quenching sink, rotation
Toggle arm, rotating body and flood zone movable passageway composition, in which:
The quenching sink, for holding cooling liquid；
The rotary dial arm, is set in the rotating body, for driving the HI-chrome cast iron for grinding balls to be rolled；
The rotating body drives the rotary dial arm for installing the rotary dial arm, and by itself rotation
It is rotated；
The HI-chrome cast iron for grinding balls is moved into the quenching sink and carries out water quenching by the flood zone movable passageway
But, and by the HI-chrome cast iron for grinding balls after cooling it is moved out to next mechanism.
It is highly preferred that the flood zone movable passageway is made of the second bottom plate, the second support plate and the second space limiting side plate,
Second support plate supports the HI-chrome cast iron for grinding balls, and second space limiting side plate limits the HI-chrome cast iron for grinding balls position,
One the second support plate and two the second space limiting side plates are connected as one by second bottom plate, form movable passageway.
Preferably, the air-cooled mechanism by air-cooled movable passageway, air-cooled promotion movable passageway, elevator and promotes toggle arm
Composition, in which:
The air-cooled movable passageway, the feeder connection connect first time water quenching cooling mechanism, the rich chromium cast iron mill
It is air-cooled that ball rolls progress in the channels, while the channel outlet is connected to the air-cooled promotion movable passageway, the high chromium casting
Iron abrading-ball enters the air-cooled promotion movable passageway through the channel outlet；
The air-cooled promotion movable passageway, the feeder connection and the air-cooled movable passageway outlet connect, the high chromium casting
Iron abrading-ball rolls in the channels, by described in the air-cooled movable passageway and the air-cooled combination completion for promoting movable passageway
The process air cooler of HI-chrome cast iron for grinding balls；
The promotion toggle arm is arranged on elevator, stirs, make to it when the HI-chrome cast iron for grinding balls is air-cooled
The HI-chrome cast iron for grinding balls is rolled in the air-cooled promotion movable passageway along direction initialization；
The elevator, for installing and being promoted the promotion toggle arm, for driving the HI-chrome cast iron for grinding balls
It rolls.
It is highly preferred that the air-cooled movable passageway, air-cooled promotion movable passageway be by third bottom plate, third support plate and
Third space limiting side plate forms, the third support plate support HI-chrome cast iron for grinding balls, described in the third space limiting side plate limitation
One third support plate and two third space limiting side plates are connected as one by HI-chrome cast iron for grinding balls position, the third bottom plate, shape
At movable passageway.
In above-mentioned apparatus of the present invention, first time water quenching cooling mechanism, air-cooled mechanism, second of water quenching cooling mechanism can
Think it is multiple, multiple first time water quenching coolings mechanism, air-cooled mechanism, second water quenching cooling mechanism can with water quenching cooling mechanism,
Air-cooled mechanism alternating sequence occurs, and can satisfy the cooling technique requirement of more quenchings.
In above-mentioned apparatus of the present invention, fast move channel, air-cooled movable passageway, it is air-cooled promoted movable passageway between it is identical
Place be all be as abrading-ball carry out rolling movement channel；It is a difference in that its length and the slanted angle between main shaft
It can be the same or different, can be straight line, curve or helix.
According to the second aspect of the invention, a kind of water-sky alternating time quenching cooling means of HI-chrome cast iron for grinding balls is provided,
Include:
Quench cooling feed step: rich chromium cast iron of the step after the cooling feed zone progress of quenching, casting reheat
Abrading-ball is in the initial position for quenching cooling feed zone, and the HI-chrome cast iron for grinding balls stays for some time in the region；
First time water quenching cooling step: the step carries out in first time water quenching cooling area, and HI-chrome cast iron for grinding balls is cold from quenching
But feed zone fast scroll is immersed into the liquid medium of quenching sink to first time water quenching cooling area and does rolling movement, keeps
Immersion liquid for a period of time, completes first time water quenching cooling process；
Air-cooled step: the step is carried out in air cooling zone, and the HI-chrome cast iron for grinding balls by first time water quenching cooling is completed
Process air cooler；The air cooling zone is air-cooled movable passageway and the air-cooled alternate combinations for promoting movable passageway；
Second of water quenching cooling step: the step carries out in second of water quenching cooling area, the Gao Ge after air-cooled
Cast-iron grinding ball completes second of water quenching cooling process, and second of water quenching cooling, first time water quenching cooling process are identical；
Work terminates discharging step: quenching cooling procedure terminates, and the rich chromium cast iron after second of water quenching cooling is ground
Ball removes.
Preferably, the quenching sink, the liquid level of liquid medium is always in a constant altitude, first time water quenching cooling
Step is identical with the immersion conditions of HI-chrome cast iron for grinding balls described in second of water quenching cooling step, and the HI-chrome cast iron for grinding balls is being quenched
The immersion liquid time sets according to the technological requirements in fiery sink.
Preferably, first time water quenching cooling area, air cooling zone, second of water quenching cooling area, can be between each of which area
Row any combination and multiplicating combination, to meet the requirement of water-sky alternating time quenching cooling technique.
Preferably, described to fast move channel, air-cooled movable passageway, have between air-cooled promotion movable passageway and main shaft and incline
Oblique angle, it is described fast move channel, air-cooled movable passageway, air-cooled promotion movable passageway are straight line, curve or helix.
Preferably, the method realizes the control of water quenching cooling time by the speed of rotation of control rotating body, to quench
The requirement of fiery cooling technique.
Preferably, the HI-chrome cast iron for grinding balls is spherosome, cylindrical body, ellipsoid.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The water of HI-chrome cast iron for grinding balls proposed by the present invention-sky alternating time quenching cooling technology, can solve Gao Ge very well
The problem of cast-iron grinding ball water quenching cracking, and water-sky alternating time quenching cooling of entire HI-chrome cast iron for grinding balls is realized simultaneously certainly
Dynamicization and mass provide important condition for HI-chrome cast iron for grinding balls preparation process.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is that water-sky alternating time quenching cooling device structure of HI-chrome cast iron for grinding balls in section Example of the present invention is shown
It is intended to；
Fig. 2 is movable passageway structural schematic diagram in section Example of the present invention；
In figure: fast moving channel 1, liquid level 2, quenching sink 3, rotary dial arm 4, rotating body 5, flood zone movement
Channel 6, air-cooled promotion movable passageway 8, elevator 9, promotes toggle arm 10, bottom plate 11, support plate 12, limit at air-cooled movable passageway 7
Position side plate 13, HI-chrome cast iron for grinding balls 14；
Quench cooling feed zone 1., first time water quenching cooling area 2., air cooling zone 3., second of water quenching cooling area 4., work
Terminate discharge zone 5..
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
The product object of this instance processes is the HI-chrome cast iron for grinding balls of Ф 80mm.950 ± 10 DEG C are reheated to after casting,
Execute water-sky alternately time quenching cooling technique.Quench cooling technique: (air-cooled for the first time) (90s ± 10s)-air-cooled after coming out of the stove
Second of air-cooled (50s ± 5s)-second water cooling (6s ± 2s) of first time water cooling (8s ± 2s)-
Water-sky of entire HI-chrome cast iron for grinding balls replaces the realization of time quenching cooling means by the work district's groups of different characteristic
At: cooling feed zone (executing air-cooled for the first time) is quenched, first time water quenching cooling area (executes first time water cooling), and air cooling zone (is held
Second of row is air-cooled), second of water quenching cooling area (executing second of water cooling), work terminates discharge zone.
Used device is as shown in Figure 1, the device includes: to quench cooling feeding mechanism, at least one first time water quenching
Cooling body, at least one air-cooled mechanism, at least one second of water quenching cooling mechanism and work terminate discharging mechanism, Gao Gezhu
Iron abrading-ball 14 passes sequentially through quenching cooling feeding mechanism, first time water quenching cooling mechanism, air-cooled mechanism, second of water quenching cooling machine
Structure and work terminate discharging mechanism.
It is preferred that the cooling feeding mechanism of the quenching, which is located at, quenches cooling feed zone；The work terminates to discharge
Mechanism, which is located at work, terminates discharge zone.
It is all made of preferably, the cooling feeding mechanism of the quenching, the work terminate discharging mechanism and fast moves channel 1
It constitutes, the channel 1 that fast moves is made of bottom plate 11, support plate 12 and space limiting side plate 13, and the support plate 12 supports described
HI-chrome cast iron for grinding balls 14, the space limiting side plate 13 limit 14 position of HI-chrome cast iron for grinding balls, and the bottom plate 11 is by a support
Plate 12 and two space limiting side plates 13 are connected as one, and are formed movable passageway (as shown in Figure 2).
It is preferred that first time water quenching cooling mechanism and second of water quenching cooling mechanism are by quenching sink
3, rotary dial arm 4, rotating body 5 and flood zone movable passageway 6 form；First time water quenching cooling mechanism is located at first time water
It quenches cooling zone, second of water quenching cooling mechanism is located at second of water quenching cooling area；Wherein:
The quenching sink 3, for holding cooling liquid；
The rotary dial arm 4 is set in the rotating body 5, for driving the HI-chrome cast iron for grinding balls 14 to carry out
It rolls；
The rotating body 5 drives the rotary dial for installing the rotary dial arm 4, and by itself rotation
Arm 4 is rotated；
The HI-chrome cast iron for grinding balls 14 is moved into the quenching sink 3 and carries out water by the flood zone movable passageway 6
The HI-chrome cast iron for grinding balls 14 after cooling but, and is moved out to next mechanism, the i.e. leaching of first time water quenching cooling mechanism by quenching
The HI-chrome cast iron for grinding balls 14 is moved out to air-cooled mechanism, the immersion area of second of water quenching cooling mechanism by water area movable passageway 6
The HI-chrome cast iron for grinding balls 14 is moved out to work by domain movable passageway 6 terminates discharging mechanism.
It is preferred that the air-cooled mechanism is by air-cooled movable passageway 7, air-cooled promotion movable passageway 8, elevator 9
It is formed with toggle arm 10 is promoted；The mechanism is located at air cooling zone；Wherein:
The air-cooled movable passageway 7, the feeder connection connect first time water quenching cooling mechanism, the rich chromium cast iron mill
It is air-cooled that ball 14 rolls progress in the channels, while the channel outlet is connected to the air-cooled promotion movable passageway 8, the Gao Ge
Cast-iron grinding ball 14 enters the air-cooled promotion movable passageway 8 through the channel outlet；
The air-cooled promotion movable passageway 8, the feeder connection and the air-cooled outlet of movable passageway 7 connect, the Gao Ge
Cast-iron grinding ball 14 rolls in the channels, complete by the air-cooled movable passageway 7 and the air-cooled combination for promoting movable passageway 8
At the process air cooler of the HI-chrome cast iron for grinding balls 14；
The elevator 9, for installing and being promoted the promotion toggle arm 10, to drive the HI-chrome cast iron for grinding balls 14
It rolls；
The promotion toggle arm 10 is arranged on elevator 9, dials when the HI-chrome cast iron for grinding balls 14 is air-cooled to it
It is dynamic, roll the HI-chrome cast iron for grinding balls 14 along direction initialization in the air-cooled promotion movable passageway 8.
In above structure, abrading-ball driving body that the rotary dial arm 4 and rotating body 5 form, the elevator 9 and mention
The abrading-ball driving body that toggle arm 10 forms is risen, the unit rolled for driving abrading-ball along direction initialization.It is described fast move channel 1,
Air-cooled movable passageway 7, the air-cooled movable passageway 8 that promoted all are the channels that rolling movement is carried out as abrading-ball.It is described fast move it is logical
Road 1, flood zone movable passageway 6, air-cooled movable passageway 7, air-cooled 8 structure of promotion movable passageway can be identical, by bottom plate 11,
Support plate 12 and space limiting side plate 13 form, as shown in Figure 2.
Water-cooling the process of sky alternating time quenching for carrying out HI-chrome cast iron for grinding balls using above-mentioned apparatus is as follows:
The cooling charging of quenching: the HI-chrome cast iron for grinding balls after casting reheats is in the initial bit for quenching cooling feed zone
It sets, abrading-ball stops 90s in the region, which can according to need setting, be also possible to other in other embodiments
Time.
Execute first time Cooling Process: the abrading-ball edge in the initial position for quenching cooling feed zone fast moves channel 1
Fast scroll to flood zone movable passageway 6 initial position, abrading-ball be immersed under the driving of rotary dial arm 4 liquid level 2 with
Under quenching sink 3 among do rolling movement, immersion liquid time at this stage controls in 8s；Immersion liquid time control herein can be with
The speed of rotation by controlling rotating body 5 is realized.
Execute second of process air cooler: abrading-ball, which passes through, enters air-cooled movable passageway 7 and air-cooled behind first time water quenching cooling area
Movable passageway 8 is promoted, in 50s, the time in this stage is real by the control to abrading-ball rolling rate for time control at this stage
It is existing.
Execute second of Cooling Process: movement is identical as first time water quenching cooling process, only when immersion liquid at this stage
Between control in 6s, the immersion liquid time is realized by the speed of rotation of control rotating body 5.
Last abrading-ball, which enters work, terminates discharge zone, and quenching cooling procedure terminates.
In the above embodiments of the present invention, wherein some exclusive use or any group can choose for each preferred embodiment
It closes using can be with.
The present embodiment realizes the automation of entire technique using above-mentioned execution water-sky alternating time quenching cooling technique,
The cooling mass of HI-chrome cast iron for grinding balls quenching can be more preferably realized based on the automation process, solve HI-chrome cast iron for grinding balls water
It quenches the technical problem of cracking.
Embodiment 2
The product object of this instance processes is same as Example 1, the difference is that: first time water quenching cooling, it is air-cooled,
Secondary water quenching cooling carries out multiplicating combination, to meet the requirement of water-sky alternating time quenching cooling technique.
Quench cooling technique: (air-cooled for the first time) (90s ± 10s)-first time water cooling (6s ± 2s)-the second air-cooled after coming out of the stove
Air-cooled (50s ± 5s)-third time water cooling (4s ± 2s) of secondary air-cooled (25s ± 5s)-second water cooling (5s ± 2s)-third time
The implementation of the technique by 7 feature work district's groups at: quench cooling feed zone (executing air-cooled for the first time), for the first time
Water quenching cooling area (executes first time water cooling), and air cooling zone (executes air-cooled for the second time), and second of water quenching cooling area (executes second
Water cooling), air cooling zone (it is air-cooled to execute third time), and third time water quenching cooling area (executes third time water cooling), and work terminates discharge zone.
The apparatus structure of use is identical as 1 Zhong Ge mechanism of embodiment, but has two sets of air-cooled mechanisms and three sets of water quenchings
But mechanism.Specific implementation process is as follows:
The cooling charging of quenching: the abrading-ball after reheating after casting is in the initial position for quenching cooling feed zone, abrading-ball
90s is stopped in the region.
Execute first time Cooling Process: the abrading-ball edge in the initial position for quenching cooling feed zone fast moves channel 1
Fast scroll to flood zone movable passageway 6 initial position, abrading-ball be immersed under the driving of rotary dial arm 4 liquid level 2 with
Under quenching sink 3 among do rolling movement, the control of immersion liquid time at this stage (passes through the rotation of control rotating body 5 in 6s
Rotational speed rate is realized).
Execute second of process air cooler: abrading-ball, which passes through, enters air-cooled movable passageway 7 and air-cooled behind first time water quenching cooling area
Promote movable passageway 8.Time control at this stage (is realized) in 25s by the control to abrading-ball rolling rate.
Execute second of Cooling Process: movement is identical as first time water quenching cooling process, only when immersion liquid at this stage
Between control 5s (pass through control rotating body 5 the speed of rotation realize).
Execute third time process air cooler: abrading-ball enters air-cooled movable passageway 7 and air-cooled after passing through first time water quenching cooling area
Promote movable passageway 8.Time control at this stage (is realized) in 50s by the control to abrading-ball rolling rate.
Execute third time Cooling Process: movement is identical as first time water quenching cooling process, only when immersion liquid at this stage
Between control 4s (pass through control rotating body 5 the speed of rotation realize).
Last abrading-ball, which enters work, terminates discharge zone, and quenching cooling procedure terminates.
Repeatedly air-cooled and water cooling technique is used in above-described embodiment, solves the skill of HI-chrome cast iron for grinding balls water quenching cracking
Art problem, the water for realizing entire HI-chrome cast iron for grinding balls-sky alternately time quenching cooling technique automation simultaneously, can be more preferable
Promotion cooling effect.
According to the present embodiment as can be seen that the air-cooled and water cooling number in the present invention can be set according to actual needs,
Alternately, air-cooled mechanism and water quenching cooling mechanism in corresponding device increase accordingly or reduce air-cooled and water cooling, this to set
Set the adaptability for considerably increasing entire technique and device.
Embodiment 3
The product object of this instance processes is oval HI-chrome cast iron for grinding balls.It is reheated to 950 ± 10 DEG C after casting, holds
Row water-sky alternating time quenching cooling technique.Quench cooling technique: (air-cooled for the first time) (90s ± 10s)-the air-cooled after coming out of the stove
Second of air-cooled (50s ± 5s)-second water cooling (6s ± 2s) of water cooling (8s ± 2s)-
The implementation of the technique is made of the workspace of different characteristic: it quenches cooling feed zone (executing air-cooled for the first time), the
Water quenching cooling area (executes first time water cooling), air cooling zone (execute second air-cooled), and second water quenching cooling area (executes the
Secondary water cooling), work terminates discharge zone.
Used device is as shown in Figure 1, the cooling device is by fast moving channel 1, liquid level 2, quenching sink 3, rotation
Transfer swing arm 4, rotating body 5, flood zone movable passageway 6, air cooling zone movable passageway 7, air cooling zone promote movable passageway 8, mention
It rises machine 9, promote the composition of toggle arm 10.Wherein: quenching cooling feed zone and formed by fast moving channel 1；First time water quenching
But area and second of water quenching cooling area are mobile by liquid level 2, quenching sink 3, rotary dial arm 4, rotating body 5 and flood zone
Channel 6 forms；Air cooling zone is by 10 groups of toggle arm of air-cooled movable passageway 7, air-cooled promotion movable passageway 8, elevator 9 and promotion
At；Work terminates discharge zone and is formed by fast moving channel 1.Specific connection and assembling sequence are in the same manner as in Example 1.
As shown in Figure 1, it is described fast move channel 1, air-cooled movable passageway 7, air-cooled promotion movable passageway 8 and main shaft it
Between have a slanted angle, it is described fast move channel 1, air-cooled movable passageway 7, air-cooled promotion movable passageway 8 are straight line, curve or spiral shell
Spin line.
Water-cooling the process of sky alternating time quenching for carrying out HI-chrome cast iron for grinding balls using above-mentioned apparatus is as follows:
The cooling charging of quenching: the HI-chrome cast iron for grinding balls after casting reheats is in the initial bit for quenching cooling feed zone
It sets, abrading-ball stops 90s in the region.
Execute first time Cooling Process: the abrading-ball edge in the initial position for quenching cooling feed zone fast moves channel 1
Fast scroll to flood zone movable passageway 6 initial position, abrading-ball be immersed under the driving of rotary dial arm 4 liquid level 2 with
Under quenching sink 3 among do rolling movement, the control of immersion liquid time at this stage (passes through the rotation of control rotating body 5 in 8s
Rotational speed rate is realized).
Execute second of process air cooler: abrading-ball, which passes through, enters air-cooled movable passageway 7 and air-cooled behind first time water quenching cooling area
Promote movable passageway 8.Time control at this stage (is realized) in 50s by the control to abrading-ball rolling rate.
Execute second of Cooling Process: movement is identical as first time water quenching cooling process, only when immersion liquid at this stage
Between control 6s (pass through control rotating body 5 the speed of rotation realize).
Last abrading-ball, which enters work, terminates discharge zone, and quenching cooling procedure terminates.
Above embodiments device and method, it may be convenient to realize that water-sky alternating time quenching of HI-chrome cast iron for grinding balls is cold
But, it solves the problems, such as to crack to abrading-ball water quenching, both can satisfy water-sky alternately cooling requirement of time quenching of abrading-ball, it can also
To meet water-sky alternately cooling requirement of time quenching of other rolling elements (such as: cylindrical body, ellipsoid).
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (7)
1. a kind of water of HI-chrome cast iron for grinding balls-sky alternating time quenching cooling device, which is characterized in that described device includes: to quench
Fire cooling feeding mechanism, at least one first time water quenching cooling mechanism, at least one air-cooled mechanism, at least one second of water quenching
Cooling body and work terminate discharging mechanism, and HI-chrome cast iron for grinding balls passes sequentially through quenching cooling feeding mechanism, first time water quenching
But mechanism, air-cooled mechanism, second of water quenching cooling mechanism and work terminate discharging mechanism；Wherein:
The cooling feeding mechanism of the quenching, it is air-cooled for the first time to complete the HI-chrome cast iron for grinding balls, and by the HI-chrome cast iron for grinding balls
It is moved to first time water quenching cooling mechanism；
First time water quenching cooling mechanism, for carrying out first time water cooling to the HI-chrome cast iron for grinding balls, and by first time water
The HI-chrome cast iron for grinding balls after cooling of quenching is transferred to the air-cooled mechanism；
The air-cooled mechanism, it is air-cooled for the second time for being carried out to the HI-chrome cast iron for grinding balls Jing Guo first time water quenching cooling, and
The HI-chrome cast iron for grinding balls after will be air-cooled is transferred to second of water quenching cooling mechanism；
Second of water quenching cooling mechanism, for carrying out second of water to second of HI-chrome cast iron for grinding balls after air-cooled
It is cold, and the HI-chrome cast iron for grinding balls after second of water quenching cooling is transferred to the work terminates discharging mechanism；
The work terminates discharging mechanism, and the HI-chrome cast iron for grinding balls after second of water quenching cooling is removed from device；
The cooling feeding mechanism of the quenching, the work terminate discharging mechanism and are formed by fast moving channel, for completing
The movement of the HI-chrome cast iron for grinding balls；
First time water quenching cooling mechanism and second of water quenching cooling mechanism are led by quenching sink, rotary dial arm, rotation
Body and flood zone movable passageway composition, in which:
The quenching sink, for holding cooling liquid；
The rotary dial arm, is set in the rotating body, for driving the HI-chrome cast iron for grinding balls to be rolled；
The rotating body drives the rotary dial arm to carry out for installing the rotary dial arm, and by itself rotation
Rotation；
The HI-chrome cast iron for grinding balls is moved into the quenching sink and carries out water quenching cooling by the flood zone movable passageway,
And the HI-chrome cast iron for grinding balls after cooling is moved out to next mechanism；
The air-cooled mechanism is made of air-cooled movable passageway, air-cooled promotion movable passageway, elevator and promotion toggle arm, in which:
The air-cooled movable passageway, the feeder connection connect first time water quenching cooling mechanism, and the HI-chrome cast iron for grinding balls exists
It is air-cooled that progress is rolled in the channel, while the channel outlet is connected to the air-cooled promotion movable passageway, the rich chromium cast iron mill
The ball warp channel outlet enters the air-cooled promotion movable passageway；
The air-cooled promotion movable passageway, the feeder connection and the air-cooled movable passageway outlet connect, the rich chromium cast iron mill
Ball rolls in the channels, completes the Gao Ge by the air-cooled movable passageway and the air-cooled combination for promoting movable passageway
The process air cooler of cast-iron grinding ball；
The promotion toggle arm is arranged on elevator, stirs when the HI-chrome cast iron for grinding balls is air-cooled to it, makes described
HI-chrome cast iron for grinding balls is rolled in the air-cooled promotion movable passageway along direction initialization；
The elevator, for installing and being promoted the promotion toggle arm, so that the HI-chrome cast iron for grinding balls be driven to roll；
It is described to fast move channel, air-cooled movable passageway, have slanted angle between air-cooled promotion movable passageway and main shaft.
2. alternately time quenching cooling device, feature exist a kind of water of HI-chrome cast iron for grinding balls according to claim 1-sky
In the channel that fast moves is made of the first bottom plate, the first support plate and the first space limiting side plate, the first support plate support
The HI-chrome cast iron for grinding balls, first space limiting side plate limit the HI-chrome cast iron for grinding balls position, and first bottom plate is by one
First support plate and two the first space limiting side plates are connected as one, and form movable passageway.
3. alternately time quenching cooling device, feature exist a kind of water of HI-chrome cast iron for grinding balls according to claim 1-sky
In the flood zone movable passageway is made of the second bottom plate, the second support plate and the second space limiting side plate, second support plate
The HI-chrome cast iron for grinding balls is supported, second space limiting side plate limits the HI-chrome cast iron for grinding balls position, and second bottom plate will
One the second support plate and two the second space limiting side plates are connected as one, and form movable passageway.
4. alternately time quenching cooling device, feature exist a kind of water of HI-chrome cast iron for grinding balls according to claim 1-sky
In the air-cooled movable passageway, air-cooled promotion movable passageway are by third bottom plate, third support plate and third limiting side board group
At the third support plate supports the HI-chrome cast iron for grinding balls, and the third space limiting side plate limits the HI-chrome cast iron for grinding balls position
It sets, a third support plate and two third space limiting side plates are connected as one by the third bottom plate, form movable passageway.
5. alternately time quenching is cooling for a kind of water of the HI-chrome cast iron for grinding balls using any one of claim 1-4 described device-sky
Method characterized by comprising
Quench cooling feed step: HI-chrome cast iron for grinding balls of the step after the cooling feed zone progress of quenching, casting reheat
In the initial position for quenching cooling feed zone, the HI-chrome cast iron for grinding balls stays for some time in the region；
First time water quenching cooling step: the step carries out in first time water quenching cooling area, HI-chrome cast iron for grinding balls from quenching it is cooling into
Expect that area's fast scroll to first time water quenching cooling area, is immersed into the liquid medium of quenching sink and does rolling movement, keep immersion liquid
For a period of time, first time water quenching cooling process is completed；
Air-cooled step: the step is carried out in air cooling zone, and the HI-chrome cast iron for grinding balls by first time water quenching cooling is completed air-cooled
Process；The air cooling zone is air-cooled movable passageway and the air-cooled alternate combinations for promoting movable passageway；
Second of water quenching cooling step: the step carries out in second of water quenching cooling area, the rich chromium cast iron after air-cooled
Abrading-ball completes second of water quenching cooling process, and second of water quenching cooling, first time water quenching cooling process are identical；
Work terminates discharging step: quenching cooling procedure terminates, and the HI-chrome cast iron for grinding balls after second of water quenching cooling is moved
Out.
6. alternately time quenching cooling means, feature exist a kind of water of HI-chrome cast iron for grinding balls according to claim 5-sky
In, the quenching sink, the liquid level of liquid medium is always in a constant altitude, first time water quenching cooling step and second
The immersion conditions of HI-chrome cast iron for grinding balls described in water quenching cooling step are identical, and each immersion liquid time is according to HI-chrome cast iron for grinding balls
Alternately time quenching cooling technique requires to be set separately water-sky.
7. alternately time quenching cooling means, feature exist a kind of water of HI-chrome cast iron for grinding balls according to claim 5-sky
In, first time water quenching cooling area, air cooling zone, second of water quenching cooling area, can be carried out between each area any combination and/or
Combination is repeated several times, to meet the requirement of water-sky alternating time quenching cooling technique.
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| CN201710329949.XA CN107245561B (en) | 2017-05-11 | 2017-05-11 | A kind of water of HI-chrome cast iron for grinding balls-sky alternately time quenching cooling device and method |
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| CN107245561B true CN107245561B (en) | 2019-01-04 |
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| CN108315534B (en) * | 2018-05-10 | 2019-08-23 | 二重（德阳）重型装备有限公司 | Liquid air alternately quenches control method |
| CN110421876A (en) * | 2019-07-08 | 2019-11-08 | 余玲辉 | Plastic immersion device |
| CN113755675A (en) * | 2021-07-20 | 2021-12-07 | 宁国市华丰耐磨材料有限公司 | High-chromium grinding ball stage quenching heat treatment air cooling device |
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| CN101984091A (en) * | 2010-11-26 | 2011-03-09 | 上海交通大学 | Online time-control temperature-control water quenching device |
| CN102382954A (en) * | 2011-11-02 | 2012-03-21 | 北京科技大学 | On-line continuous quenching device for skew-rolled ball-milled steel balls |
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