CN106350649A - Isostatic pressing gas quenching equipment - Google Patents
Isostatic pressing gas quenching equipment Download PDFInfo
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- CN106350649A CN106350649A CN201610993632.1A CN201610993632A CN106350649A CN 106350649 A CN106350649 A CN 106350649A CN 201610993632 A CN201610993632 A CN 201610993632A CN 106350649 A CN106350649 A CN 106350649A
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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
- C21D1/62—Quenching devices
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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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides isostatic pressing gas quenching equipment which comprises a furnace body, a fan, a thermal insulation box and a heating device, wherein the fan and the thermal insulation box are arranged inside the furnace body; the fan is arranged outside the thermal insulation box and mounted at the front end of the thermal insulation box; the heating device is arranged in the thermal insulation box; the thermal insulation box comprises a box body, an air vent and an air door corresponding to the air vent; the air door is used for opening or closing the air vent; the box body and the air door are both made of a thermal insulation material; the box body is a cube; the air vent comprises a front air vent at the front end of the box body and a rear air vent at the rear end of the box body; a heat exchanger is arranged between the fan and the front air vent; four air inlets are formed at the end of the heat exchanger facing the front air vent and include a top air inlet, a bottom air inlet, a left air inlet and a right air inlet; and an air channel door for opening or closing the air inlet is arranged at each air inlet. The equipment provided by the invention can remarkably increase the cooling speed to realize a gas quenching effect, can realize uniform cooling and can freely adjust the air direction and air volume.
Description
Technical field
The invention belongs to heating furnace field is and in particular to a kind of isostatic pressed air quenching equipment.
Background technology
In field of metallurgy, heating furnace is a kind of requisite firing equipment, and material is processed through heating furnace high-temperature, such as
After the high temperature sintering that in powder metallurgy, workpiece passes through, need to be quenched, quenching determines the finally micro- of heat treated part
Tissue and performance.Obtain preferable microscopic structure, the height that the rate of cooling that quenches must be enough, and also cold on whole workpiece interface
Speed must be tried one's best uniformly.Conventional heat treatment is to be quenched using oil or water-soluble quenching liquid, but liquid medium
Rate of cooling can not adjust in quenching process, especially when the workpiece quenching of deformation sensitive, with oil or water-soluble medium
Quenching is not easily accomplished the control of Quenching Rate.
Air quenching method is a kind of new heat treatment method, and gas is as hardening media, its conduction of heat system at typical condition
Number is all less than oil and aqueous medium, but it can adjust quenching process according to the particular/special requirement of workpiece shapes and material, can
Reduce cleaning charge, improve air quenching process repeatability, and it is superior to reduce grinding and minimizing depth of hardening zone of following process etc.
Property is being compensated.
It is directly realized by the difficult problem that air quenching technique is heating furnace field using heating furnace, this process must be in the guarantor of noble gases
Carry out under shield.Existing heating furnace can only accomplish heating and rapid cooling it is impossible to realize the effect of air quenching.Existing rapid cooling heating furnace
Generally way is that heating furnace at high operating temperatures, is passed through noble gases into stove and is usually argon, drives indifferent gas using blower fan
Body, in stove internal circulation flow, the heat in couveuse is taken out of, and the furnace wall of the gas and heating furnace that carry heat carries out heat exchange, heat
Amount is taken away eventually through the recirculated cooling water of furnace wall.
Existing heating furnace is merely able to rely on the heat exchange between noble gases and furnace wall, and heat exchange efficiency is low, heat exchange speed
Degree is too slowly it is impossible to realize air quenching.Importantly, the airflow direction of noble gases is single, air-flow can only be from the rear end of couveuse
Flow to front end, processed piece surface is heated uneven, and it is too fast and front end rate of cooling is too slow to often result in rear end cooling, cold
But the uneven crystalline phase uneven microstructure easily causing inside parts of speed, the phenomenon of stress concentration in inside parts, impact
The quality of part.
Content of the invention
It is an object of the invention to: offer one kind can freely adjust wind direction and air quantity, uniformly and rate of cooling is fast for cooling
Isostatic pressed air quenching equipment.
In order to solve above-mentioned technical problem, the technical scheme is that
A kind of isostatic pressed air quenching equipment, including body of heater, blower fan, couveuse and heater, wherein, blower fan and described guarantor
Incubator is arranged on described furnace interior, and described blower fan is arranged on outside described couveuse, and is arranged on the front end of described couveuse, institute
State heater to be arranged in described couveuse, described couveuse includes casing, air port and the air door corresponding with described air port,
Described air door is used for being turned on and off described air port, and described casing and described air door are heat-insulating heat-preserving material, and described casing is
Cube, described air port is the front air port being arranged on casing front end and the rear air port being arranged on box back, described blower fan and
It is provided with heat exchanger between described front air port, be provided with four air inlets in described heat exchanger towards the one end in described front air port, point
Not Wei jacking air port, bottom air inlet, left air inlet and right air inlet, each air inlet is provided with described for being turned on and off
The air channel door of air inlet.
Further, one kind of the present invention preferred embodiment in, the top surface of casing and bottom surface are respectively equipped with mouth against the wind
With bottom air port, and/or, the left side of described casing and the right side are respectively equipped with left air port and right air port, and described air door is correspondingly arranged at
At described air port.
Further, the heat exchanger in such scheme is plate-fin heat exchanger.
Further, one kind of the present invention preferred embodiment in, air door closing device, institute are also provided with casing
State air door closing device to be connected with described air door, for being pressed on described air port or by described air door described air door from described
Lift at air port.Wherein, air door closing device is oil cylinder or cylinder, and one end of described oil cylinder or cylinder is fixed with described air door
Connect, the other end of described oil cylinder or cylinder is fixed on the body of heater of described isostatic pressed air quenching equipment.
Further, the air channel door in such scheme includes deep bead and driving means, described deep bead hinged
In described air inlet, its pin joint is positioned close to the side of described blower fan, the windward side of described deep bead towards described enter
Air port, the lee face of deep bead is hinged with described driving means.
In order to improve kinematic accuracy during opening and closing for the air door, improve air door air-tightness when closed, enter
One step ground, is provided with the lead no less than two at the described air port on described casing, described lead vertical with described case
Body surface face, the edge of described air door is provided with the corresponding pilot hole of described lead, and described lead is inserted in described guiding
Kong Zhong.
In order to improve the air-tightness between air door and thermal insulation box body further, improve heat-insulating property, in described air door court
To the one side in described air port, be provided with one be higher than described air door edge boss, described boss can be correspondingly placed in described air port, institute
State convex edge of table to fit tightly with described air port inwall.
In order to make the noble gases in entrance couveuse more uniform during air quenching, further, in the present invention
One kind preferred embodiment in, the couveuse in such scheme also includes wind-guiding graphite cake, and described wind-guiding graphite cake is arranged on
At described air port, it is fixed on the inwall of described casing, wind-guiding graphite cake is provided with the air-guiding hole for guiding wind direction.
Specifically, above-mentioned air-guiding hole is distributed in the surface of wind-guiding graphite cake, and described air-guiding hole makes in the described casing of entrance
Gas is located remotely from each other along the circumference of described wind-guiding graphite cake.
The isostatic pressed air quenching equipment that the present invention provides, is provided with efficient heat exchanger, heat exchanger is arranged in body of heater
The front end of thermal insulation box body, the rear and front end of couveuse is respectively arranged with air port and the air door for being turned on and off air port,
In heat exchanger, the one end in the front air port of couveuse is provided with jacking air port, bottom air inlet, left air inlet and right air inlet, and
It is provided for being turned on or off the air channel door of air inlet in each air inlet, by adjusting the folding of air channel door, you can
Realize the regulation of each air inlet air quantity of heat exchanger and wind direction.On the one hand, by efficient heat exchanger, overcome existing adding
Hot stove can only rely on the heat exchange between noble gases and furnace wall, and heat exchange efficiency is low, cooling rate is slow it is impossible to realize air quenching
Problem.On the other hand, the present invention can adjust flow direction and the flow of noble gases, can adjust processed parts list as needed
The flow of the cooling gas that face is passed through, overcome part to be processed surface be heated inequality, impact part quality problem.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only
More fully understand the present invention, and should not be construed limitation of the present invention.For those of ordinary skill in the art, exist
On the premise of not paying creative work, other accompanying drawings can also be obtained according to the accompanying drawing providing.
Fig. 1 is a kind of structural representation of preferred implementation of isostatic pressed air quenching equipment that the present invention provides；
Fig. 2 is the sectional view at a-a in Fig. 1；
Fig. 3 is the couveuse structural representation of the equipment of isostatic pressed air quenching shown in Fig. 1；
Fig. 4 is the partial enlarged drawing at b in Fig. 3；
Fig. 5 is a kind of wind-guiding graphite cake structural representation of preferred implementation of isostatic pressed air quenching equipment that the present invention provides
Figure；
Fig. 6 is the gas flow schematic diagram of wind-guiding graphite cake shown in Fig. 5.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, real below in conjunction with the application
Apply the accompanying drawing in example, the enforcement it is clear that described is clearly and completely described to the technical scheme in the embodiment of the present application
Example is only some embodiments of the present application, rather than whole embodiments.
It is important to note that before alleged in the present invention, below, the left side, the right side etc. with regard to the statement in direction, be
Set for convenience of description, in Fig. 1 and Fig. 3, the direction of arrow indication is front, and such statement does not constitute to this
Bright unnecessary restriction.
Embodiment one
Refer to Fig. 1 to Fig. 6, present embodiments provide a kind of isostatic pressed air quenching equipment, including body of heater 1, blower fan 7, insulation
Case and heater 12, wherein, blower fan 7 and couveuse are arranged on inside body of heater 1, and blower fan 7 is arranged on outside couveuse, and install
In the front end of couveuse, heater 12 is arranged in couveuse, and couveuse includes casing 2, air port 6 and corresponding with air port 6
Air door 4, air door 4 is used for being turned on and off air port 6, and casing 2 and air door 4 are heat-insulating heat-preserving material, and casing 2 is cube.
Refer to Fig. 1, Fig. 2 and Fig. 3, in the present embodiment, above-mentioned air port 6 is specially arranged on the front wind of casing 2 front end
Mouth 61 and the rear air port 62 being arranged on casing 2 rear end, are provided with heat exchanger 8, in the court of heat exchanger 8 between blower fan 7 and front air port 61
The one end in air port 61 is provided with four air inlets, respectively jacking air port 91, bottom air inlet 92, left air inlet 93 and right air intake forward
Mouthful, each air inlet is provided with the air channel door for being turned on and off air inlet.
The isostatic pressed air quenching equipment that the present embodiment provides, is provided with efficient heat exchanger 8, heat exchanger 8 court in body of heater 1
The one end in the front air port of couveuse 61 is provided with jacking air port 91, bottom air inlet 92, left air inlet 93 and right air inlet, right air intake
Mouth is located at left air inlet 93 opposite, and in figure does not show.It is provided for being turned on or off air intake in each air inlet
The air channel door of mouth, by adjusting the folding of air channel door, you can realize the regulation of each air inlet air quantity of heat exchanger 8 and wind direction, than
As:
Only open jacking air port 91, in couveuse, the flow direction of noble gases is that air port 62 enters after casing 2, from casing 2
At front air port 61, it is then upwardly into jacking air port 91, so so that the noble gases in couveuse move upward, quilt
The top rate of cooling of processing part is accelerated.In the same manner, when only opening the air inlet of a heat exchanger 8, the flow direction of noble gases
Deviate to this air inlet.When air inlet is all turned on, the gas flow of couveuse is maximum.
The technical scheme of the present embodiment, on the one hand passes through efficient heat exchanger 8, and overcoming existing heating furnace can only be according to
Heat exchange between bad noble gases and furnace wall, heat exchange efficiency is low, cooling rate is slow it is impossible to realize the problem of air quenching.Another
Aspect, the present invention can adjust flow direction and the flow of noble gases, can adjust what processed piece surface passed through as needed
The flow of cooling gas, overcome part to be processed surface be heated inequality, impact part quality problem.
Embodiment two
When heated volume of part is larger, existing heating furnace, due to only having front and back Liang Ge air port, is used for
Before the noble gases of cooling can only flow to from behind, cooling air-flow first contacts the one side of part, contacts zero again after being heated
The another side of part, the surface inhomogeneous cooling of part is even, stress concentration phenomenon easily, and rate of cooling is slow.This example will
On the basis of embodiment one, improve the uniformity of rate of cooling and cooling further, realize more preferable air quenching effect.This reality
Apply example and carry out following improvement:
Refer to Fig. 3, in top surface and the bottom surface of casing 2, be also respectively provided with mouth 63 and bottom air port 64 against the wind, or in case
The left side of body 2 and the right side are provided with left air port 65 and right air port 66 it is also possible to respectively arrange on top surface, bottom surface, the left side, the right side
Mouth 63, bottom air port 64, left air port 65 and right air port 66 against the wind.
The isostatic pressed air quenching equipment that the present embodiment provides, setting air port 6 and relative with air port 6 on the casing 2 of couveuse
The air door 4 answered, except the front and back in casing 2 is respectively provided with air port 6 and air door 4, is also provided with the side of casing 2
Air port 6 and air door 4, air port 6 and air door 4 can individually be turned on and off, and the folding of different air doors 4 is capable of inert gas flow
To the regulation with flow, when closing air door 4 below, open above and below air door 4, you can upper surface to part and under
Surface carry out sufficiently cool, when whole air doors 4 are opened, can the comprehensive cooling to part degree of carrying out.The technical scheme of the present embodiment,
It is capable of the regulation of rate of cooling, and adapt can be carried out according to the profile of heated part, efficiently solve
Rate of cooling is uneven and the part quality problem that occurs.
Further, the air channel door in such scheme includes deep bead 10 and driving means 11, the hinge of deep bead 10
It is connected on air inlet, its pin joint is positioned close to the side of blower fan 7, and the windward side of deep bead 10 is towards air inlet, deep bead
10 lee face is hinged with driving means 11.Driving means 11 are shunk and are lifted deep bead 10, then deep bead 10 rotates around pin joint,
Deep bead 10 tilts, and forms space, the then indifferent gas in couveuse between the air inlet of the windward side of deep bead 10 and heat exchanger 8
Body can enter the air inlet of heat exchanger 8 from space.Conversely, when driving means 11 extend, then deep bead 10 rotates around pin joint,
The air inlet of heat exchanger 8 is covered, the noble gases in couveuse cannot be introduced into corresponding air inlet.
Further, refer to Fig. 1 to Fig. 3, in order to more easily realize the folding of air door 4, embodiment one and enforcement
Isostatic pressed air quenching equipment in example two also includes air door closing device 5, and air door closing device 5 is connected with air door 4, for by air door
4 are pressed on air port 6 or lift air door 4 at air port 6.
Specifically, above-mentioned air door 4 opening device can be connecting rod, screw mandrel or oil cylinder or cylinder, preferably oil cylinder
Or cylinder.One end of oil cylinder or cylinder is fixedly connected with air door 4, on the other end of oil cylinder or cylinder and isostatic pressed air quenching equipment
Body of heater 1 connect.
Automatization in order to realize air door 4 opens and closes, and the couveuse in such scheme includes control unit, controls single
Unit runs for control cylinder or cylinder, and oil cylinder or cylinder can be according to preset strokes each self-movements.Each air door 4 is in oil cylinder
Or in the presence of cylinder, it is capable of independent open and close movement it is also possible to carry out automatically according to default opening ways in advance
Change and manipulate.
Refer to Fig. 3 and Fig. 4, in order to improve kinematic accuracy during opening and closing for the air door 4, improve air door 4 and exist
Air-tightness during closing, further, is provided with the lead 43 no less than two at the air port 6 on casing 2, and lead 43 hangs down
Straight and casing 2 surface, the edge of air door 4 is provided with the corresponding pilot hole of lead 43 42, and lead 43 is inserted in pilot hole
In 42.Air door 4, in the presence of lead 43, only can enter line slip along the direction of lead 43, not only reduce air door 4
The radial shear power that gravity causes for oil cylinder or cylinder, also further increases the kinematic accuracy of air door 4, reduces air door 4
Shake in moving process, when air door 4 is closed, lead 43 can guide air door 4 to be closely fitted in air port 6
Together, improve the heat insulation effect in heating for the couveuse.
In order to improve the air-tightness between air door 4 and thermal insulation box body 2 further, improve heat-insulating property, refer to Fig. 4,
Air door 4 towards air port 6 one side, be provided with one be higher than air door 4 edge boss 41, boss 41 can be correspondingly placed in air port 6, convex
The edge of platform 41 is fitted tightly with air port 6 inwall.When air door 4 is closed, boss 41 is embedded in air port 6, boss 41 side
The heat-insulating property of couveuse together with edge fits tightly, can be improved with the inwall in air port 6 further.
Refer to Fig. 5 and Fig. 6, in order to make the noble gases in entrance couveuse more equal during quick cooling
Even, further, one kind of the present invention preferred embodiment in, the couveuse in such scheme also includes wind-guiding graphite cake 3,
Wind-guiding graphite cake 3 is arranged at air port 6, is fixed on the inwall of casing 2, and wind-guiding graphite cake 3 is provided with air-guiding hole 31.Specifically,
Above-mentioned air-guiding hole 31 is distributed in the surface of wind-guiding graphite cake 3, and air-guiding hole 31 makes the gas in entrance casing 2 along wind-guiding graphite cake 3
Circumference be located remotely from each other.
Refer to Fig. 6, the shape of air-guiding hole 31 can be circular port, mounting hole, square hole, tri-angle-holed or other are any
The hole of shape, the one side towards outside couveuse for the wind-guiding graphite cake 3 is a face 3a, is b face 3b towards the one side in couveuse, when entering
During the quick cooling of row, blower fan 7 runs, and the noble gases of low temperature enter in couveuse from couveuse, are fully changed with part
Heat, takes away the heat of part, and the gas carrying heat flows out from the couveuse air port corresponding with blower fan 76, in this process
In, noble gases enter from a face 3a of wind-guiding graphite cake 3, flow out from the b face 3b of wind-guiding graphite cake 3, and the outlet direction of gas exists
The b face 3b of wind-guiding graphite cake 3 dissipates to the circumference of wind-guiding graphite cake 3, gas when b face 3b flows out, through wind-guiding graphite cake 3
Effect, is dispersed in couveuse, it is to avoid low-temperature airflow is directly blown onto part towards the one side in air port 6 so that the dispersion of air-flow
More preferably, cooling is more uniform for effect.
The above is only the specific embodiment of the application it is noted that ordinary skill for the art
For personnel, the improvement without creative work made on the premise of without departing from the application principle is all considered as the application's
Protection domain.
Claims (10)
1. a kind of isostatic pressed air quenching equipment, including body of heater (1), blower fan (7), couveuse and heater (12), described blower fan
(7) it is arranged on inside described body of heater (1) with described couveuse, described blower fan (7) is arranged on outside described couveuse, and is arranged on institute
State the front end of couveuse, described heater (12) is arranged in described couveuse, and described couveuse includes casing (2), air port
(6) and the air door (4) corresponding with described air port (6), described air door (4) is used for being turned on and off described air port (6), described case
Body (2) and described air door (4) be heat-insulating heat-preserving material it is characterised in that: described casing (2) is cube, described air port (6)
For being arranged on the front air port (61) of casing (2) front end and being arranged on the rear air port (62) of casing (2) rear end, described blower fan (7) and
It is provided with heat exchanger (8) between described front air port (61), be provided with towards one end of described front air port (61) in described heat exchanger (8)
Four air inlets, respectively jacking air port (91), bottom air inlet (92), left air inlet (93) and right air inlet, each air intake
It is provided with the air channel door for being turned on and off described air inlet at mouthful.
2. isostatic pressed air quenching equipment according to claim 1 it is characterised in that: the top surface of described casing (2) and bottom surface are divided
It is not provided with mouth (63) and bottom air port (64) against the wind, and/or, the left side of described casing (2) and the right side are respectively equipped with left air port (65)
With right air port (66), described air door (4) is correspondingly arranged at described air port (6) place.
3. isostatic pressed air quenching equipment according to claim 1 and 2 it is characterised in that: described heat exchanger (8) is changed for plate-fin
Hot device (8).
4. isostatic pressed air quenching equipment according to claim 1 and 2 it is characterised in that: also include air door closing device (5),
Described air door closing device (5) is connected with described air door (4), for described air door (4) being pressed on described air port (6) or inciting somebody to action
Described air door (4) lifts from described air port (6).
5. isostatic pressed air quenching equipment according to claim 4 it is characterised in that: described air door closing device (5) be oil cylinder
Or cylinder, one end of described oil cylinder or cylinder is fixedly connected with described air door (4), and the other end of described oil cylinder or cylinder is solid
It is scheduled on the body of heater (1) of described isostatic pressed air quenching equipment.
6. isostatic pressed air quenching equipment according to claim 1 and 2 it is characterised in that: described air channel door includes deep bead
(10) and driving means (11), described deep bead (10) be hinged on described air inlet, its pin joint is positioned close to
The side of described blower fan (7), the windward side of described deep bead (10) is towards described air inlet, the lee face of deep bead (10) and institute
State driving means (11) hinged.
7. isostatic pressed air quenching equipment according to claim 1 and 2 it is characterised in that: the described wind on described casing (2)
Mouth (6) place is provided with the lead (43) no less than two, and described lead (43) is perpendicular to the surface of described casing (2), described
The edge of air door (4) is provided with the pilot hole (42) corresponding with described lead (43), and described lead (43) is inserted in described
In pilot hole (42).
8. isostatic pressed air quenching equipment according to claim 7 it is characterised in that: in described air door (4) towards described air port
(6) one side, be provided with one be higher than described air door (4) edge boss (41), described boss (41) can be correspondingly placed into described wind
In mouth (6), the edge of described boss (41) and the inwall of described air port (6) fit tightly.
9. isostatic pressed air quenching equipment according to claim 1 and 2 it is characterised in that: also include wind-guiding graphite cake (3), institute
State described air port (6) place that wind-guiding graphite cake (3) is fixedly installed on described casing (2) inwall, described wind-guiding graphite cake (3) sets
There is the air-guiding hole (31) for guiding wind direction.
10. isostatic pressed air quenching equipment according to claim 9 it is characterised in that: described air-guiding hole (31) is distributed in described
The surface of wind-guiding graphite cake (3), described air-guiding hole (31) makes the gas in the described casing of entrance (2) along described wind-guiding graphite cake
(3) circumference is located remotely from each other.
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| CN201610993632.1A CN106350649B (en) | 2016-11-08 | 2016-11-08 | A kind of equal static pressure air quenching equipment |
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| CN201610993632.1A CN106350649B (en) | 2016-11-08 | 2016-11-08 | A kind of equal static pressure air quenching equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317857A (en) * | 2017-12-30 | 2018-07-24 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace and its sintering method of sintered samarium cobalt magnetic material |
| CN112458264A (en) * | 2020-11-23 | 2021-03-09 | 绍兴先越材料技术有限公司 | Gas quenching furnace with uniform low-temperature |
| CN113444868A (en) * | 2021-05-12 | 2021-09-28 | 滁州华海中谊工业炉有限公司 | Double-chamber oil quenching air cooling vacuum furnace |
| CN113701501A (en) * | 2021-09-02 | 2021-11-26 | 宁波恒普真空科技股份有限公司 | Sintering furnace cooling system |
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| CN108317857A (en) * | 2017-12-30 | 2018-07-24 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace and its sintering method of sintered samarium cobalt magnetic material |
| CN112458264A (en) * | 2020-11-23 | 2021-03-09 | 绍兴先越材料技术有限公司 | Gas quenching furnace with uniform low-temperature |
| CN113444868A (en) * | 2021-05-12 | 2021-09-28 | 滁州华海中谊工业炉有限公司 | Double-chamber oil quenching air cooling vacuum furnace |
| CN113701501A (en) * | 2021-09-02 | 2021-11-26 | 宁波恒普真空科技股份有限公司 | Sintering furnace cooling system |
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