CN208261850U - It is a kind of for metal powder injection molded degreasing sintered furnace - Google Patents
It is a kind of for metal powder injection molded degreasing sintered furnace Download PDFInfo
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- CN208261850U CN208261850U CN201820877046.5U CN201820877046U CN208261850U CN 208261850 U CN208261850 U CN 208261850U CN 201820877046 U CN201820877046 U CN 201820877046U CN 208261850 U CN208261850 U CN 208261850U
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- 238000005238 degreasing Methods 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000007664 blowing Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 34
- 239000003638 chemical reducing agent Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 210000000529 third trochanter Anatomy 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005619 thermoelectricity Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000005245 sintering Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000009740 moulding (composite fabrication) Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000013022 venting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 241000486406 Trachea Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The utility model discloses a kind of for metal powder injection molded degreasing sintered furnace, including furnace body, lower portion of furnace body is connected with lift rotating equipment by valve system, the shell of lift rotating equipment is connect with valve system, shell is equipped with handling bin gate, interior of shell is equipped with lifting rotation mechanism, lifting rotation mechanism upper end is equipped with blowing platform, gap is equipped between blowing platform and furnace body, blowing platform can pass in and out furnace body by valve system under the driving of lifting rotation mechanism, and can rotate in furnace body.The utility model can be such that product is uniformly heated, and improve production efficiency.
Description
Technical field
The utility model relates to metal powder injection molded technical field of processing equipment, are used for metal more particularly to one kind
The degreasing sintered furnace of powder injection forming.
Background technique
Metal powder injection molded is modern plastics injection molding technology is introduced field of powder metallurgy and is formed one
Novel powder metallurgy near net forms technology.It is metal powder injection molded, it is traditional powder metallurgical technique and plastic forming technology
The new process combined, which is that collection plastic forming technology, polymer chemistry, powder metallurgy technology and Metal Material Science etc., to be learned
Section intersect product, using mold injectable shape, quickly manufacture high density, high-precision, complicated shape constitutional detail, can
Design philosophy is rapidly and accurately changed into the product with certain structure, functional characteristic, and can directly mass-produce part,
It is the primary new change of manufacturing technology industry.
Metal powder injection molded injection mechanism are as follows: by injector by the mixture of metal powder and binder with one
Fixed temperature, speed and pressure injection is full of die cavity, obtains the prefabricated component of certain shapes, size through cooling shaping depanning, then take off
It the binder in prefabricated component and is sintered out, the product with certain mechanical performance can be obtained.Its forming technology process is as follows:
1. metal powder and binder mixing, 2. formings, 3. degreasings, 4. sintering, 5. post-processings, 6. finished products.
Wherein, the step of degreasing and sintering are most criticals.Degreasing is forming base contained binder in removing body before sintering
Process.Degreasing process must assure that binder is gradually arranged from the different parts of briquet along the minim channel between particle
Out, the high intensity of base is shaped without damaging.Sintering, which can make porous degreasing blank shrink densification, to be become with certain tissue and property
The product of energy.
To meet the growing needs of properties of product, the batch furnace of many device fabrication producers still uses vacuum degreasing
The form of sintering, degreasing sintered and cooling all carries out in a cavity, and furnace inside holding material mostly uses graphite material, cannot achieve
Whole hydrogen is degreasing sintered to be unable to improve sintering atmosphere in furnace, is also unable to satisfy the heat treatment requirements of product.It is simultaneously raising
Yield and production cost is reduced, stove becomes greatly, and it is uniform that in-furnace temperature not can guarantee temperature yet, the following product stabilization
Property decline and Heat-treatment Problem it is more and more significant.
Utility model content
The purpose of the utility model is to provide a kind of for metal powder injection molded degreasing sintered furnace, above-mentioned to solve
Problem of the existing technology, is uniformly heated product, and improves production efficiency.
To achieve the above object, the utility model provides following scheme:
The utility model provides a kind of for metal powder injection molded degreasing sintered furnace, including furnace body, the furnace
Body lower part is connected with lift rotating equipment by valve system, and the shell of the lift rotating equipment and the valve system connect
It connects, the shell is equipped with handling bin gate, and the interior of shell is equipped with lifting rotation mechanism, and lifting rotation mechanism upper end is set
There is blowing platform, gap is equipped between the blowing platform and the furnace body, the blowing platform is in the lifting rotation mechanism
Driving under can pass in and out the furnace body by the valve system, and can be rotated in the furnace body.
Preferably, the furnace body is four-prism shape, the regular hexagonal prism bodily form or cylindrical, and the inside of the furnace body is set
There is at least two layers of calandria, the number of every layer of calandria is three multiple, and the calandria of same layer connects in wye connection
It connects；Thermocouple is additionally provided on the furnace body, the quantity of the thermocouple is corresponding with the number of plies of the calandria, the thermoelectricity
Even test side is respectively arranged between the calandria and material boat.
Preferably, the inner wall of the furnace body is equipped with ceramic insulating layer, and the material of the calandria is tungsten or molybdenum.
Preferably, the valve system includes lock seat and flashboard, the two sides up and down of the lock seat respectively with the furnace body and
The cage connection, the flashboard are slidably connected with the lock seat, the flashboard close after can under the inner wall of the lock seat
Side seal, the flashboard are connected with rack gear, and the lock seat is equipped with floodgate motor speed reducer, the floodgate motor speed reducer it is defeated
Shaft is equipped with gear, and the gear is engaged with the rack gear.
Preferably, the first air inlet is equipped between the lock seat and the furnace body, first air inlet is used for described
The mixed gas of reducibility gas or reducibility gas and inert gas is passed through in furnace body；The lock seat is equipped with the second air inlet
Mouthful, for second air inlet for being passed through inert gas into the furnace body, the shell upside is equipped with third air inlet, described
Third air inlet is for being passed through inert gas into the shell.
It preferably, further include air supply system, the air supply system includes the first tracheae and the second tracheae, first tracheae
One end connect respectively with second air inlet and the third air inlet, the other end of first tracheae is connected with inertia
Gas source；
On first tracheae according to airflow direction be successively arranged first manual ball valve, the first pressure reducing valve, first pressure gauge,
First ball valve, the first rotor flowmeter, first round rotating ball valve and the first normally open solenoid valve；
One end of second tracheae is connect with first air inlet, and the other end of second tracheae is separately connected
One end of three tracheaes, the 4th tracheae, the 5th tracheae and the 6th tracheae, it is described between the 4th tracheae and the 5th tracheae
Second tracheae is equipped with the first normally closed solenoid valve；
The other end of the third tracheae and the 4th tracheae is all connected to the first pressure gauge and first ball
On first tracheae between valve, the first suspended body flowmeter, second are successively arranged according to airflow direction on the third tracheae
Take turns rotating ball valve and the second normally open solenoid valve；The second ball valve, the second rotor are successively arranged according to airflow direction on 4th tracheae
Flowmeter, third round rotating ball valve and third normally open solenoid valve；
The other end of 5th tracheae is connected with reducibility gas source, on the 5th tracheae successively according to airflow direction
Equipped with the second manual ball valve, the second pressure reducing valve, second pressure gauge, the second normally closed solenoid valve, third ball valve, the second suspended body flowmeter
With fourth round rotating ball valve；The other end of 6th tracheae is connected between second normally closed solenoid valve and the third ball valve
The 5th tracheae on, on the 6th tracheae according to airflow direction be successively arranged the 4th ball valve, third trochanter flowmeter and
5th wheel rotating ball valve.
Preferably, the shell is double-layer structure, is equipped with cooling water in the hollow cavity of the shell；And/or；The shell
Upside is equipped with the cooling import being oppositely arranged and coolant outlet, the pipeline being connected between the cooling import and the coolant outlet
It is equipped with cooler and circulating fan.
Preferably, the lifting rotation mechanism includes rotating base and the raise-lower hydraulic that is set on the rotating base
Cylinder, the blowing platform are set on the piston rod of the lifting hydraulic cylinder, and the rotating base includes turntable, rotary shaft, cone
Gear set and rotating electric machine speed reducer, the lifting hydraulic cylinder are set on the turntable, and the rotary shaft and the shell turn
Dynamic connection, the upper end of the rotary shaft are fixedly connected with the turntable, and the lower end of the rotary shaft is defeated with the bevel gear set
Shaft transmission connection, the output shaft of the bevel gear set are rotatablely connected through the shell and with the shell, the bevel gear
The input shaft of group and the output axis connection of the rotating electric machine speed reducer, the rotating electric machine speed reducer are fixed at described outer
On shell.
Preferably, the lifting hydraulic cylinder is multistage hydraulic cylinder, and the rotating electric machine speed reducer uses frequency control motor.
Preferably, the furnace body upper end by pipeline be connected in turn oxygen content monitoring device, pressure-adjusting control valve door,
First gas outlet and burner, first gas outlet are connected with safety valve, are equipped with the second gas outlet, institute on the downside of the shell
It states the second gas outlet and is connected with venting ball valve, the furnace body upper end is additionally provided with pressure sensor, and the intracorporal pressure of furnace is 5-
15mbar。
The utility model achieves following technical effect compared with the existing technology:
Lifting rotation mechanism and valve system in the utility model realize degreasing sintered and cooling can be respectively in furnace body
It is carried out in shell, shell can use different methods for cooling according to the requirement of product, ensure that thermal effectiveness, product is come out of the stove
When furnace body in temperature need not be down to room temperature, save the process time, improve production efficiency；Product rotates in thermal field, can
It is more uniform with the temperature for guaranteeing degreasing sintered, to keep product size more stable.
Furnace body in the utility model uses ceramic thermal insulation, tungsten or the heating of molybdenum calandria, avoids thermal insulation material and reduction
Property gas reaction, the first air inlet and furnace body normal open enter by lower portion of furnace body, upper of furnace body by burner burning and exhausting,
The effective use for ensuring that sintering atmosphere in this way, it is degreasing sintered to realize whole reducibility gas micro-positive pressure, to make product
Appearance is guaranteed.The setting of upper of furnace body oxygen content monitoring device, can real-time monitoring furnace atmosphere, ensure that product matter
Amount.
Lifting hydraulic cylinder in the utility model uses multistage hydraulic cylinder, saves lower part installation space；Valve system is adopted
With gear-rack drive, it is ensured that mechanical movement is reliable；Rotating electric machine uses frequency control motor, it is ensured that movement more steadily may be used
Control.
The utility model has safe and reliable a, high production efficiency, sintered products size and high excellent of appearance stablity, density
Point.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram that the utility model is used for metal powder injection molded degreasing sintered furnace；
Fig. 2 is the structure type of the utility model furnace body and the connection relationship diagram of calandria；
Fig. 3 is the schematic cross-sectional view of the utility model furnace body；
Fig. 4 is the external cooling back installation schematic diagram of the utility model；
Fig. 5 is the structural schematic diagram of the utility model air supply system；
Fig. 6 is working state figure when the utility model gate is opened；
Working state figure when Fig. 7 is the utility model closing gate；
Wherein: 1- furnace body, 2- valve system, 3- lift rotating equipment, 4- shell, 5- load and unload bin gate, 6- blowing platform, 7-
Calandria, 8- thermocouple, 9- ceramic insulating layer, 10- lock seat, 11- flashboard, 12- floodgate motor speed reducer, the first air inlet of 13-,
The second air inlet of 14-, 15- third air inlet, the cooling import of 16-, 17- coolant outlet, 18- cooler, 19- circulating fan, 20-
Turntable, 21- lifting hydraulic cylinder, 22- rotary shaft, 23- bevel gear set, 24- rotating electric machine speed reducer, 25- oxygen content monitoring device,
26- pressure-adjusting control valve door, 27- safety valve, 28- burner, 29- venting ball valve, 30- pressure sensor, the first gas of 31-
Pipe, the second tracheae of 32-, 33- first manual ball valve, the first pressure reducing valve of 34-, 35- first pressure gauge, the first ball valve of 36-, 37- the
One spinner flowmeter, 38- first round rotating ball valve, the first normally open solenoid valve of 39-, 40- third tracheae, the 4th tracheae of 41-, 42-
Five tracheaes, the 6th tracheae of 43-, the normally closed steam supply valve of 44- first, the first suspended body flowmeter of 45-, 46- second take turns rotating ball valve, 47- the
Two normally open solenoid valves, the second ball valve of 48-, the second spinner flowmeter of 49-, 50- third round rotating ball valve, 51- third normally open solenoid valve,
The second manual ball valve of 52-, the second pressure reducing valve of 53-, 54- second pressure gauge, the second normally closed solenoid valve of 55-, 56- third ball valve, 57-
Second suspended body flowmeter, 58- fourth round rotating ball valve, the 4th ball valve of 59-, 60- third trochanter flowmeter, 61- the 5th take turns rotating ball valve.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise not made the creative labor
Under every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of for metal powder injection molded degreasing sintered furnace, above-mentioned to solve
Problem of the existing technology, is uniformly heated product, and improves production efficiency.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
It is as shown in Figs. 1-5: to present embodiments provide a kind of for metal powder injection molded degreasing sintered furnace, including furnace
Body 1, furnace body 1 are chosen as the square prism bodily form, the regular hexagonal prism bodily form or cylindrical, and the inner wall of furnace body 1 is equipped with ceramic thermal insulation
Layer 9, the inside of furnace body 1 are equipped with upper layer and lower layer calandria 7, and the material of calandria 7 is tungsten or molybdenum.The number of every layer of calandria 7 is equal
Calandria 7 for three multiple, same layer is connected in wye connection.When for four-prism shape, what calandria 7 was disposed therein
Three faces；When be positive the hexagonal prisms bodily form when, six faces are equipped with calandria 7, and two adjacent series connection are formed after heater group again
Connect with other heater groups using wye connection, when for cylindrical, can circumferentially uniformly distributed three heating several again
Device, and three groups will be classified as, it is connected between three groups using wye connection；The temperature uniformity of three of the above furnace body 1 successively mentions
It is high.Thermocouple 8 is additionally provided on furnace body 1, the quantity of thermocouple 8 is corresponding with the number of plies of calandria 7, the test side of thermocouple 8
It is respectively arranged at calandria 7 and expects between boat and close to the position of material boat.Thermocouple 8 is used to feedback temperature parameter and can adjust add
The heating temperature of hot device.
1 upper end of furnace body has been sequentially communicated oxygen content monitoring device 25 by pipeline, pressure-adjusting control valve door 26, first has gone out
Port and burner 28, the first gas outlet are connected with safety valve 27, are equipped with the second gas outlet, the second gas outlet on the downside of shell 4
It is connected with venting ball valve 29,1 upper end of furnace body is additionally provided with pressure sensor 30, can make in furnace body 1 by pressure-adjusting control valve
Pressure of the portion when purging and being degreasing sintered is in the micro-positive pressure of 5-15mbar.
1 lower part of furnace body is connected with lift rotating equipment 3, the shell 4 and gate of lift rotating equipment 3 by valve system 2
Device 2 connects.Shell 4 is equipped with handling bin gate 5, is equipped with lifting rotation mechanism inside shell 4, lifting rotation mechanism upper end is equipped with
Blowing platform 6, blowing platform 6 drives material boat to move up and down and rotate for placing material boat, between blowing platform 6 and furnace body 1
Equipped with gap, blowing platform 6 can pass in and out furnace body 1 by valve system 2 under the driving of lifting rotation mechanism, and can be in furnace
Rotation in body 1.
Shell 4 is double-layer structure, cooling water is equipped in the hollow cavity of shell 4, in order to make product natural cooling, shell 4
Upside can also be equipped with the cooling import 16 being oppositely arranged and coolant outlet 17, be connected between cooling import 16 and coolant outlet 17
Pipeline is equipped with cooler 18 and circulating fan 19, in order to be quickly cooled down product.
Lifting rotation mechanism includes rotating base and the lifting hydraulic cylinder 21 that is set on rotating base, and blowing platform 6 is set
It is placed on the piston rod of lifting hydraulic cylinder 21, rotating base includes that turntable 20, rotary shaft 22, bevel gear set 23 and rotating electric machine subtract
Fast machine 24, lifting hydraulic cylinder 21 are set on turntable 20, and rotary shaft 22 and shell 4 are rotatablely connected, the upper end of rotary shaft 22 with turn
Disk 20 is fixedly connected, and the lower end of rotary shaft 22 and the output shaft of bevel gear set 23 are sequentially connected, and the output shaft of bevel gear set 23 passes through
It wears shell 4 and is rotatablely connected with shell 4, the input shaft of bevel gear set 23 and the output axis connection of rotating electric machine speed reducer 24, rotation
Rotating motor speed reducer 24 is fixedly installed on the shell.Lifting hydraulic cylinder 21 is preferably multistage hydraulic cylinder, to reduce elevating and rotating machine
The height of structure；It is preferable to use frequency control motors for rotating electric machine speed reducer 24.
Valve system 2 includes lock seat 10 and flashboard 11, and the two sides up and down of lock seat 10 are connect with furnace body 1 and shell 4 respectively, lock
Plate 11 is slidably connected with lock seat 10, and flashboard 11 can be connected with rack gear with the inner wall lower side seals of lock seat 10, flashboard 11 after closing,
Lock seat 10 is equipped with floodgate motor speed reducer 12, and the output shaft of floodgate motor speed reducer 12 is equipped with gear, and wheel and rack is nibbled
It closes.
The first air inlet 13 is equipped between lock seat 10 and furnace body 1, the first air inlet 13 is for being passed through reproducibility into furnace body 1
The gaseous mixture of gas (such as hydrogen) or reducibility gas and inert gas (such as nitrogen, naturally it is also possible to for inert gases such as argon gas)
Body；Lock seat 10 is equipped with the second air inlet 14, and the second air inlet 14 is set on the upside of shell 4 for being passed through inert gas into furnace body 1
There is third air inlet 15, third air inlet 15 is for being passed through inert gas into shell 4.
The present embodiment further includes air supply system, and air supply system includes the first tracheae 31 and the second tracheae 32, the first tracheae 31
One end connect respectively with the second air inlet 14 and third air inlet 15, the other end of the first tracheae 31 is connected with inert gas
Source；
First manual ball valve 33, the first pressure reducing valve 34, first pressure are successively arranged according to airflow direction on first tracheae 31
Table 35, the first ball valve 36, the first rotor flowmeter 37, first round rotating ball valve 38 and the first normally open solenoid valve 39；
One end of second tracheae 32 is connect with the first air inlet 13, and the other end of the second tracheae 32 is separately connected third tracheae
40, one end of the 4th tracheae 41, the 5th tracheae 42 and the 6th tracheae 43, the second gas between the 4th tracheae 41 and the 5th tracheae 42
Pipe 32 is equipped with the first normally closed solenoid valve 44；
The other end of third tracheae 40 and the 4th tracheae 41 is all connected between first pressure gauge 35 and the first ball valve 36
On first tracheae 31, the first suspended body flowmeter 45, second wheel rotating ball valve 46 is successively arranged according to airflow direction on third tracheae 40
With the second normally open solenoid valve 47；The second ball valve 48, the second spinner flowmeter are successively arranged according to airflow direction on 4th tracheae 41
49, third round rotating ball valve 50 and third normally open solenoid valve 51；
The other end of 5th tracheae 42 is connected with reducibility gas source, is successively arranged on the 5th tracheae 42 according to airflow direction
Second manual ball valve 52, the second pressure reducing valve 53, second pressure gauge 54, the second normally closed solenoid valve 55, third ball valve 56, the second float
Flowmeter 57 and fourth round rotating ball valve 58；The other end of 6th tracheae 43 is connected to the second normally closed solenoid valve 55 and third ball valve 56
Between the 5th tracheae 42 on, be successively arranged the 4th ball valve 59, third trochanter flowmeter according to airflow direction on the 6th tracheae 43
60 and the 5th take turns rotating ball valve 61.
The working process of this embodiment is as follows:
1. the material boat for being mounted with pre- de- part is put on blowing platform 6 by loading and unloading bin gate 5；
2. shutting handling bin gate 5 and valve system 2, indifferent gas is first passed through by the second air inlet 14 and third air inlet 15
Body nitrogen purges the inner and outer 4 inside 30-45min of shell of furnace, and furnace pressure, furnace pressure dimension are controlled by pressure-adjusting control valve
It holds in 5-15mbar；Burner 28 (burner 28 is used as exhaust valve at this time) and venting ball valve 29 are in and open at this time
State, for discharging the oxygen in the inner and outer shell 4 of furnace, until turning off venting ball valve 29 after completely inertization in confirmation furnace；
3. in furnace after completely inertization, burner 28 is lighted a fire, starting gate device 2, floodgate motor speed reducer 12 passes through
The opening of gear-rack drive flashboard 11, lifting hydraulic cylinder 21 act, and drive material boat to rise in furnace body 1 after stopping, rotating electric machine
24 driving material boat rotations, the mixed gas of reducibility gas hydrogen or hydrogen and nitrogen enters from the first air inlet 13 at this time, leads to
It crosses burner 28 and burns hazardous gas and exhaust gas, calandria 7 is begun to warm up, and upper layer and lower layer calandria 7 is controlled by thermocouple 8
Temperature processed carries out degreasing and sintering to pre- de- part by presetting temperature curve；
4. after degreasing sintered, starting to cool down in furnace, stop being passed through reducibility gas hydrogen after being down to certain temperature, only
It is passed through inert nitrogen gas, material boat drops in shell 4, and closed shutter device 2, leads to inside 1 inside of furnace body and shell 4 at this time
Cross the separation of flashboard 11, product inside shell 4 can natural cooling or rapid cooling, reach the thermal effectiveness of different requirements,
When rapid cooling, the driving material boat rotation of rotating electric machine 24, uniformly to cool down product.
It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field
Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute
It states, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of for metal powder injection molded degreasing sintered furnace, it is characterised in that: including furnace body, the lower portion of furnace body is logical
It crosses valve system and is connected with lift rotating equipment, the shell of the lift rotating equipment is connect with the valve system, described outer
Shell is equipped with handling bin gate, and the interior of shell is equipped with lifting rotation mechanism, and lifting rotation mechanism upper end is flat equipped with blowing
Platform is equipped with gap between the blowing platform and the furnace body, the blowing platform is under the driving of the lifting rotation mechanism
The furnace body can be passed in and out by the valve system, and can be rotated in the furnace body.
2. according to claim 1 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the furnace body
Inside for four-prism shape, the regular hexagonal prism bodily form or cylindrical, the furnace body is equipped at least two layers of calandria, every layer of institute
The number for stating calandria is three multiple, and the calandria of same layer is connected in wye connection；Thermoelectricity is additionally provided on the furnace body
Even, the quantity of the thermocouple is corresponding with the number of plies of the calandria, and the test side of the thermocouple is respectively arranged at described
Between calandria and material boat.
3. according to claim 2 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the furnace body
Inner wall be equipped with ceramic insulating layer, the material of the calandria is tungsten or molybdenum.
4. according to claim 1 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the gate
Device includes lock seat and flashboard, the two sides up and down of the lock seat respectively with the furnace body and the cage connection, the flashboard with
The lock seat is slidably connected, and the flashboard can connect with teeth after closing with the inner wall lower side seals of the lock seat, the flashboard
Item, the lock seat are equipped with floodgate motor speed reducer, and the output shaft of the floodgate motor speed reducer is equipped with gear, the gear
It is engaged with the rack gear.
5. according to claim 4 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the lock seat
The first air inlet is equipped between the furnace body, first air inlet is for being passed through reducibility gas into the furnace body；Institute
Lock seat is stated equipped with the second air inlet, second air inlet is for being passed through inert gas into the furnace body, on the shell
Side is equipped with third air inlet, and the third air inlet is for being passed through inert gas into the shell.
6. according to claim 5 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: further include supplying
Gas system, the air supply system include the first tracheae and the second tracheae, one end of first tracheae respectively with described second into
Port is connected with the third air inlet, and the other end of first tracheae is connected with inert gas source；
First manual ball valve, the first pressure reducing valve, first pressure gauge, first are successively arranged according to airflow direction on first tracheae
Ball valve, the first rotor flowmeter, first round rotating ball valve and the first normally open solenoid valve；
One end of second tracheae is connect with first air inlet, and the other end of second tracheae is separately connected third gas
One end of pipe, the 4th tracheae, the 5th tracheae and the 6th tracheae, described second between the 4th tracheae and the 5th tracheae
Tracheae is equipped with the first normally closed solenoid valve；
The other end of the third tracheae and the 4th tracheae be all connected to the first pressure gauge and first ball valve it
Between first tracheae on, on the third tracheae according to airflow direction be successively arranged the first suspended body flowmeter, second rotation
Ball valve and the second normally open solenoid valve；The second ball valve, the second spinner are successively arranged according to airflow direction on 4th tracheae
Meter, third round rotating ball valve and third normally open solenoid valve；
The other end of 5th tracheae is connected with reducibility gas source, is successively arranged on the 5th tracheae according to airflow direction
Second manual ball valve, the second pressure reducing valve, second pressure gauge, the second normally closed solenoid valve, third ball valve, the second suspended body flowmeter and
Four-wheel rotating ball valve；The other end of 6th tracheae is connected to the institute between second normally closed solenoid valve and the third ball valve
It states on the 5th tracheae, is successively arranged the 4th ball valve, third trochanter flowmeter and the 5th according to airflow direction on the 6th tracheae
Take turns rotating ball valve.
7. according to claim 1 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the shell
For double-layer structure, cooling water is equipped in the hollow cavity of the shell；And/or；The cooling being oppositely arranged is equipped on the upside of the shell
Import and coolant outlet, the pipeline being connected between the cooling import and the coolant outlet are equipped with cooler and circulated air
Machine.
8. according to claim 1 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the lifting
Rotating mechanism includes rotating base and the lifting hydraulic cylinder that is set on the rotating base, and the blowing platform is set to described
On the piston rod of lifting hydraulic cylinder, the rotating base includes turntable, rotary shaft, bevel gear set and rotating electric machine speed reducer, institute
It states lifting hydraulic cylinder to be set on the turntable, the upper end of the rotary shaft is fixedly connected with the turntable, the rotary shaft
The output shaft of lower end and the bevel gear set is sequentially connected, the output shaft of the bevel gear set through the shell and with it is described outer
Shell rotation connection, the output axis connection of the input shaft of the bevel gear set and the rotating electric machine speed reducer, the rotating electric machine
Speed reducer is fixedly installed on the housing.
9. according to claim 8 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the lifting
Hydraulic cylinder is multistage hydraulic cylinder, and the rotating electric machine speed reducer uses frequency control motor.
10. according to claim 1 be used for metal powder injection molded degreasing sintered furnace, it is characterised in that: the furnace
Body upper end is connected with oxygen content monitoring device, pressure-adjusting control valve door, the first gas outlet and burner in turn by pipeline,
First gas outlet is connected with safety valve, is equipped with the second gas outlet on the downside of the shell, second gas outlet is connected with row
Balloon valve, the furnace body upper end are additionally provided with pressure sensor, and the intracorporal pressure of furnace is 5-15mbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877046.5U CN208261850U (en) | 2018-06-07 | 2018-06-07 | It is a kind of for metal powder injection molded degreasing sintered furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877046.5U CN208261850U (en) | 2018-06-07 | 2018-06-07 | It is a kind of for metal powder injection molded degreasing sintered furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208261850U true CN208261850U (en) | 2018-12-21 |
Family
ID=64689059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820877046.5U Withdrawn - After Issue CN208261850U (en) | 2018-06-07 | 2018-06-07 | It is a kind of for metal powder injection molded degreasing sintered furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208261850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405855A (en) * | 2018-06-07 | 2018-08-17 | 宁波恒普真空技术有限公司 | It is a kind of to be used for metal powder injection molded degreasing sintered stove |
| CN114178529A (en) * | 2021-11-03 | 2022-03-15 | 浙江恒成硬质合金有限公司 | Hard alloy degreasing furnace and degreasing method |
-
2018
- 2018-06-07 CN CN201820877046.5U patent/CN208261850U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405855A (en) * | 2018-06-07 | 2018-08-17 | 宁波恒普真空技术有限公司 | It is a kind of to be used for metal powder injection molded degreasing sintered stove |
| CN108405855B (en) * | 2018-06-07 | 2024-03-15 | 宁波恒普技术股份有限公司 | Degreasing sintering furnace for metal powder injection molding |
| CN114178529A (en) * | 2021-11-03 | 2022-03-15 | 浙江恒成硬质合金有限公司 | Hard alloy degreasing furnace and degreasing method |
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Address after: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee after: Ningbo Hengpu Vacuum Technology Co.,Ltd. Address before: 315300 no.488-560, North Youth Palace Road, Gutang street, Cixi City, Ningbo City, Zhejiang Province Patentee before: NINGBO HIPER VACUUM TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee after: Ningbo Hengpu Technology Co.,Ltd. Address before: No. 365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo City, Zhejiang Province, 315300 Patentee before: Ningbo Hengpu Vacuum Technology Co.,Ltd. |
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Granted publication date: 20181221 Effective date of abandoning: 20240315 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181221 Effective date of abandoning: 20240315 |