CN106735226B - Multizone control climate metal injection moulding vacuum sintering furnace - Google Patents
Multizone control climate metal injection moulding vacuum sintering furnace Download PDFInfo
- Publication number
- CN106735226B CN106735226B CN201710052040.4A CN201710052040A CN106735226B CN 106735226 B CN106735226 B CN 106735226B CN 201710052040 A CN201710052040 A CN 201710052040A CN 106735226 B CN106735226 B CN 106735226B
- Authority
- CN
- China
- Prior art keywords
- hopper
- air inlet
- flitch
- side plate
- long side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of multizone control climate metal injection moulding vacuum sintering furnaces, including hopper, flitch, intake valve, deflector hole, collecting tray and escape pipe, air inlet is offered on hopper, air inlet is provided with and communicated with intake valve, at least two layers of flitch is provided in hopper, processed product is placed on flitch, at least two groups diversion channel is offered on the side plate of hopper, diversion channel will be divided into multiple regions in hopper, every group of diversion channel is corresponding with an air inlet, hopper bottom is connected to by least two deflector holes with collecting tray, and collecting tray is connected to escape pipe.Multizone control climate metal injection moulding vacuum sintering furnace in the present invention, utilize the division and the air inlet of wide cut direction of multizone, to guarantee the uniformity of atmosphere in hopper, and the deviation size for controlling the local product size is adjusted by the size for the throughput for adjusting each region.
Description
Technical field
The present invention relates to powder metallurgical technologies, true more particularly to a kind of multizone control climate metal injection moulding
Empty sintering furnace.
Background technique
Metal injection moulding processing procedure has more than 30 years history, and by being continually striving to, many problems have been solved, but although
In this way, various problem is kneaded, injection, degreasing still in daily powder processed, occur in the manufacturing process such as sintering.
Product size exceeds the margin of tolerance after such as coming out of the stove, i.e. product size is unstable, the size for being sintered out with furnace product
There are biggish deviations, it has also become a project in industry.The main reason for causing product size unstable is the following:
1, influence of the in-furnace temperature distributing homogeneity to product size.Current graphite field metal injection moulding vacuum is de-
Rouge sintering furnace, the predominantly upper and lower twoth areas control of temperature control, You Lianggen thermocouple monitor entire thermal field, it may appear that upper and lower, preceding,
In, the regions such as rear generate temperature deviation, the height of temperature can have an impact to product sintered dimensions；
2, influence of the uniformity of atmosphere to product size.Current metal injection moulding vacuum degreasing fritting furnace hopper into
Gas is mostly the upper and lower intake valve air inlet at front/rear door, then is flowed out from intermediate escape pipe.Upper and lower intake valve air inlet cannot be effective
Air-flow is evenly distributed on every layered material plate, such intake method frequently can lead to most of the air-flow of lower inlet valve entrance
Do not flow through flitch but directly to be taken away, and the air-flow that upper inlet valve enters is very irregular flows through flitch, it is possible some
Corner air-flow does not flow through, and the dimensional discrepancy for each position product on a block plate occur is larger, and product yield cannot be controlled
System；
3, air-flow flow through flitch stroke is longer and the influence that generates disorder to product size.Current metal injection moulding
Vacuum degreasing fritting furnace hopper intake method is windstream intake method, and using front and back air inlet, the form of centre outflow is more,
Also there is the streamer mode gone out after advancing.This kind of intake method makes air-flow flow through every layered material plate, but since air-flow flows through the row of flitch
Journey is longer, it may appear that a block plate overdraught flow has deviation, and air-flow flows through between flitch and flitch, and air-flow passes through one section of straight line
It will appear sinuous flow phenomenon after L, in addition escape pipe plays throttling action, so the region carbon potential distribution near outlet mouth of pipe is tighter
Weight, product phosphorus content will increase after sintering, influence product size and performance.
In addition, due to air-flow tendency will appear some corner air-flows flow through less than place, furnace shape is bigger, and dimensional discrepancy is just
It is more obvious.Meanwhile graphite hopper is there are leakage point, at such as plate and plate splicing gap, door-plate is bonded gap, many equipment hoppers into
Gas is by intake valve air inlet, and intake valve is opened and needs certain pressure difference, and before intake valve is not turned on, hopper generates interior
External differential forces air-flow to enter from leakage point, and leakage point is irregular, and the throughput entered on each layered material plate is also different, also can
Influence the stability of product size.Also, in degreasing process, since the few region of air flow rate will lead to product binder
Do not have it is completely out, into after sintering process, in product remaining binder at high temperature carbon distribution black, size also can beyond public affairs
There are many poor range.So either degreasing or sintering process, the uniformity of atmosphere is extremely important to the dimensional stability of product.
Therefore, in order to solve a series of problems of above-mentioned appearance, those skilled in the art need a kind of perfect metal note
Forming vacuum sintering furnace is penetrated, to avoid the appearance of above-mentioned technical problem.
Summary of the invention
It is above-mentioned to solve the object of the present invention is to provide a kind of multizone control climate metal injection moulding vacuum sintering furnace
Problem of the existing technology enables the vacuum sintering furnace to set by multizone air inlet and wide cut short stroke air flow path etc.
Meter reaches the uniformity of atmosphere in hopper, to efficiently control the size of metal injection moulding product, reduces dimensional discrepancy, and
And under the premise of material, process time and temperature close, variety classes product can be placed with the area Lu Ge and is handled, save energy
Source improves efficiency.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of multizone control climate metal injection moulding vacuum sintering furnace, including hopper, flitch, air inlet
Valve, deflector hole, collecting tray and escape pipe offer air inlet on the hopper, and the air inlet is provided with and communicated with intake valve, institute
It states and is provided at least two layers flitch in hopper, processed product is placed on the flitch, is opened up on the side plate of the hopper
There is at least two groups diversion channel, the diversion channel will be divided into multiple regions in the hopper, diversion channel described in every group is corresponding with one
A air inlet, the hopper bottom are connected to by least two deflector holes with the collecting tray, the collecting tray and
The escape pipe connection.
Optionally, the side plate of the hopper is spliced by interior plate and outer panel, and the air inlet is located at the outside
On plate, multiple small air inlet holes are evenly equipped on the interior plate, the diversion channel is arranged on the outer panel, and the diversion channel will
Airflow diversion is into the small air inlet hole therewith.
Optionally, the deflector hole is at least two, and the deflector hole inside thread is connected with water conservancy diversion with matching
Block；The aperture of the baffle is adjustable, and the aperture of the baffle close apart from the escape pipe is small, more toward both sides aperture more
Greatly；The deflector hole is evenly distributed on the upper plate of the collecting tray, and the confluence trench bottom connects the escape pipe, it is described go out
The quantity of tracheae is one or more, and when the quantity of the escape pipe is multiple, multiple escape pipes are uniformly distributed connection
In confluence trench bottom.
Optionally, the hopper is rectangular parallelepiped structure, and the air inlet valve position of the air inlet connection is provided with mass flowmenter,
The corresponding region of one mass flowmenter, and air inlet correspondence is communicated with an ingress pipe；
The air inlet lead-in mode of the multizone control climate metal injection moulding vacuum sintering furnace has following form:
One is be arranged on any side plate that the air inlet is arranged in two long side plates of the hopper or simultaneously
On two long side plates；
Another kind is that the air inlet is arranged on the bottom plate of the hopper；
It is also possible that the air inlet is arranged on the top plate of the hopper.
Optionally, the windstream mode of the multizone control climate metal injection moulding vacuum sintering furnace has following shape
Formula:
One is from two long side plate air inlets of the hopper, the deflector hole is set to the length of the bottom end of the hopper
On the center line in direction, air-flow is from the deflector hole outlet；
Another kind is that, from any long side plate air inlet of two long side plates of the hopper, the deflector hole is set to another length
On the bottom panel side of the corresponding hopper of side plate, air-flow is from the deflector hole outlet.
Optionally, the feeding manner of the multizone control climate metal injection moulding vacuum sintering furnace has following form:
One is, it is provided at least two layers of insertion groove on the hopper inner sidewall, processed product is placed on flitch,
The flitch for being placed with processed product is inserted into the insertion groove manually；
Another kind is that the device further includes having flitch frame, and the flitch frame is multilayer integrated flitch frame, the flitch frame
Side wall is provided at least two layers of insertion groove, and the flitch for being placed with processed product is inserted into the insertion groove, the flitch
Frame is placed on truck, delivers into the flitch frame in the hopper in a manner of manually or automatically.
The present invention also provides a kind of processing technology of multizone control climate metal injection moulding vacuum sintering furnace, reply in
Above-mentioned multizone control climate metal injection moulding vacuum sintering furnace, the multizone control climate metal injection moulding vacuum
The air inlet of sintering furnace is divided into two-way, is all the way the direct air inlet of multizone in hopper, is in addition passed directly into outside the hopper all the way；
The processing technology of the multizone control climate metal injection moulding vacuum sintering furnace includes:
(1) it charges
Processed product is placed on flitch, the flitch for placing processed product is then manually inserted into hopper
It is interior, or hopper is delivered by truck on insertion flitch frame；
(2) region division
At least two groups diversion channel is offered on the side plate of the hopper, the diversion channel will be divided into multiple in the hopper
Region, diversion channel described in every group is corresponding with the air inlet, after air-flow enters the diversion channel by the air inlet,
It is then tapped off and enters in the small air inlet hole on interior plate, be diverted on every layered material plate by the small air inlet hole outlet, thus real
Now to the air inlet of multiple regions；
(3) air inlet imports
On the hopper of rectangular parallelepiped structure, the air inlet valve position being connected to air inlet is provided with mass flowmenter,
The mass flowmenter controls gas flow air inlet, and gas is delivered into air inlet by the ingress pipe being connected to air inlet；
(4) windstream
Air-flow from two long side plates of the hopper either side air inlet or air-flow from two long side plates of the hopper into
Gas then after the processed product on the flitch and flitch, then is flowed out through deflector hole；
(5) it is vented
Air-flow enters in collecting tray, the collecting tray is connected to escape pipe, is eventually entered into after deflector hole outflow
Gas is discharged escape pipe.
Optionally, the concrete mode of the charging procedure are as follows:
One is be placed on processed product on flitch, the flitch for being placed with processed product be inserted into hopper manually
In insertion groove on inner sidewall, charging is completed；
Another kind is that processed product is placed on flitch, the insertion groove being then inserted into the flitch on flitch frame
In, the flitch frame is placed on truck, and then mode manually or automatically delivers into flitch frame in the hopper.
Optionally, it includes following manner that the air inlet, which imports:
One is be arranged on any side plate that the air inlet is arranged in two long side plates of the hopper or simultaneously
On two long side plates, mass flowmenter control gas flow directly entered through the ingress pipe the long side plate of the hopper into
In port；
Another kind is that the air inlet is arranged on the bottom surface of hopper bottom plate two sides either side or the air inlet
It is arranged on the bottom surface of the hopper floor length direction center line, the mass flowmenter controls gas flow from the hopper
Air inlet or the mass flowmenter control gas flow from the hopper floor length side at the bottom surface of bottom plate two sides either side
Air inlet to the bottom surface of center line, then the air inlet gas inlet hole through opening up on bottom plate is to the long side plate of either side in the long side plate of hopper two
In air inlet or air inlet simultaneously is into the air inlet of the long side plate of hopper two；
It is also possible that the air inlet is arranged on the top surface of hopper top plate two sides either side or the air inlet
It is arranged on the top surface of the hopper top plate length direction center line, the mass flowmenter controls gas flow from the hopper
Air inlet or the mass flowmenter control gas flow from hopper top plate length side at the top surface of top plate two sides either side
Air inlet to the top surface of center line, then the air inlet gas inlet hole through opening up on top plate is to the long side plate of either side in the long side plate of hopper two
In air inlet or air inlet simultaneously is into the air inlet of the long side plate of hopper two.
Optionally, the windstream includes following manner:
One is from two long side plate air inlets of the hopper, the deflector hole is set to the length of the bottom end of the hopper
On the center line in direction, the air-flow after acting on towards processed products is again via the deflector hole outlet in middle position；
Another kind is that, from any long side plate air inlet of two long side plates of the hopper, the deflector hole is set to another length
On the bottom panel side of the corresponding hopper of side plate, the air-flow after acting on towards processed products is corresponding via the long side plate in the other side again
The hopper bottom panel side on the deflector hole outlet.
The present invention achieves following technical effect compared with the existing technology:
1, the division that region can be carried out, by the flitch in hopper processed product subregion carry out control climate with
Forming, each region have respective mass flowmenter control air inlet respectively, realize the different effect of the control climate in each region, solve
In certainly former technology some corner air-flows of single region air inlet it is less or flow through less than the problem of, atmosphere is adjusted by multizone and is reached
Influence of the atmosphere evenness to product size and performance；
2, by changing the airintake direction of air-flow, from the width direction air inlet of hopper, the distance that air-flow flows through is reduced, is guaranteed
Air-flow flows to gas outlet in rectilinear path, and air-flow is uneven caused by not will cause disorder；
3, entered due to air intake structure from ingress pipe, make to be filled with gas without hopper outside and directly reach in hopper, it is real
Existing heating region atmosphere is isolated with atmosphere in hopper, and gas is cleaner, and product surface is brighter；
4, mass flowmenter is arranged in air inlet valve position, and intake valve on-off controls mass flowmenter air inlet, mass flowmenter control
Gas flow, control flow is more accurate, more more stable than pressure difference intake valve air inlet；
5, multizone control climate metal injection moulding vacuum sintering furnace in the present invention, can effectively avoid in process
The dimensional discrepancy that middle product generates improves product yield；
6, multizone control climate metal injection moulding vacuum sintering furnace in the present invention, is able to achieve in material, process time
And under the premise of temperature close, product of different shapes is placed with the area Lu Ge and is handled, it is energy saving, it improves efficiency；
7, by the way that collecting tray and deflector hole is arranged, escape pipe throttling causes the impurity such as the carbon in air-flow stagnant in the former technology of solution
It stays and causes the problem of carbon content increases in product in escape pipe near zone；
8, divide two-way gas, pass through another way gas outside hopper, make to solve former technology with the outer air pressure balance of hopper in hopper
It is middle revealed because of hopper inside and outside differential pressure caused by atmosphere unevenly to the influence of product size.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the hopper overall structure diagram of multizone control climate metal injection moulding vacuum sintering furnace of the present invention；
Fig. 2 a is the main view of the hopper of multizone control climate metal injection moulding vacuum sintering furnace of the present invention, and Fig. 2 b is
The side view of Fig. 2 a；
Fig. 3 is deflector hole schematic diagram in the hopper of multizone control climate metal injection moulding vacuum sintering furnace of the present invention；
Fig. 4 is that hopper bottom length direction center line upper air flows through processed product after leading to two long side plates again in the present invention
Surface is flowed to the schematic diagram of deflector hole outlet air flow path among collecting tray upper plate again；
Fig. 5 is the schematic diagram for placing flitch in the present invention in hopper on flitch frame；
Fig. 6 a is the structural schematic diagram that the flitch frame of flitch is placed in the present invention, and Fig. 6 b is the side view of Fig. 6 a；
The either side bottom surface upper air for the hopper bottom plate two sides that Fig. 7 a divides 3 zone atmospheres to control for hopper in the present invention is again
The schematic diagram that processed product surface is flowed to collecting tray side deflector hole outlet air flow path again is flowed through after logical corresponding long side plate,
Fig. 7 b is the side view of Fig. 7 a；
Fig. 8 is the vacuum sintering furnace system diagram that A, B, C, D 4th area control climate air inlet are divided into the present invention；
Wherein, 1 hopper；2 deflector holes；3 collecting trays；4 escape pipes；5 placement regions；6 air inlets；7 ingress pipes；8 flitch；9
Baffle aperture；10 balance weights；11 ceramic wafers；12 processed products；13 flitch framves；14 idler wheels；15 baffles；16 intake valves；
17 mass flowmenters.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is above-mentioned to solve the object of the present invention is to provide a kind of multizone control climate metal injection moulding vacuum sintering furnace
Problem of the existing technology enables the vacuum sintering furnace to set by multizone air inlet and wide cut short stroke air flow path etc.
Meter reaches the uniformity of atmosphere in hopper, to efficiently control the size of metal injection moulding product, reduces dimensional discrepancy, and
And under the premise of material, process time and temperature close, variety classes product can be placed with furnace and is handled, it is energy saving,
It improves efficiency.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Please refer to Fig. 1-8, wherein Fig. 1 is the material of multizone control climate metal injection moulding vacuum sintering furnace of the present invention
The overall structure diagram of case；Fig. 2 a is the master of the hopper of multizone control climate metal injection moulding vacuum sintering furnace of the present invention
View, Fig. 2 b are the side view of Fig. 2 a；Fig. 2 b is also the schematic diagram that intake method is the air inlet simultaneously of two long side plates in the present invention；Figure
3 be water conservancy diversion aperture schematic diagram in the hopper of multizone control climate metal injection moulding vacuum sintering furnace of the present invention；Fig. 4 is this hair
Bright middle intake method is the schematic diagram of hopper bottom plate bottom length direction center line upper air；Fig. 4 is also that gas is oriented in the present invention
Stream mode is the air inlet simultaneously of the long side plate of hopper two, the schematic diagram of deflector hole outlet among bottom plate collecting tray upper plate；Fig. 4 is also this hair
Bright middle charging method is that flitch is manually inserted into the schematic diagram in hopper inner wall slot；Fig. 5 is on flitch frame in hopper in the present invention
Place the schematic diagram of flitch, i.e. the charging method signal that is truck manually or automatically material conveying grillage material feeding box；Fig. 6 a is this hair
The structural schematic diagram of the bright middle flitch frame for placing flitch, Fig. 6 b are the side view of Fig. 6 a；Fig. 7 a is windstream side in the present invention
Formula is any long side plate air inlet in the long side plate of hopper two, the schematic diagram of another long side plate outlet；Fig. 7 a is also air inlet in the present invention
Mode is the schematic diagram of hopper bottom plate two sides either side bottom surface air inlet；Fig. 7 b is the side view of Fig. 7 a；Fig. 8 is to divide in the present invention
For the vacuum sintering furnace system diagram of A, B, C, D 4th area control climate air inlet.
The present invention provides a kind of multizone control climate metal injection moulding vacuum sintering furnace, including hopper 1, flitch 8, into
Air valve 16, deflector hole 2, collecting tray 3 and escape pipe 4 offer air inlet 6, the connection of air inlet 6 setting on the hopper 1
There is intake valve 16, at least two layers flitch 8 is provided in the hopper 1, places processed product 12, institute on the flitch 8
It states and offers at least two groups diversion channel on the side plate of hopper 1, the diversion channel will be divided into multiple regions in the hopper 1, often
The group diversion channel is corresponding with the air inlet 6,1 bottom of hopper by least two deflector holes 2 with it is described
Collecting tray 3 is connected to, and the collecting tray 3 is connected to the escape pipe 4.
Carry out region division, by the flitch 8 in hopper 1 12 subregion of processed product carry out control climate at
Shape, each region have respective mass flowmenter 17 to control air inlet respectively.Deflector hole 2 is evenly distributed on 1 bottom plate of hopper, makes gas
Stream is linearly to flow into collecting tray 3；The effect of collecting tray 3 is to realize that multiple deflector holes 2 are evenly distributed on 1 bottom of hopper, makes to flow
Air flow direction through 12 surface of processed product is linearly, avoids in former technology hopper 1 that there is a little regions in this way
Air-flow stream less than the phenomenon that, also solve in former technology escape pipe outlet and throttle and cause outlet mouth of pipe near carbon potential distribution seriously
And the problem of influencing properties of product.
The side plate of hopper 1 is spliced by interior plate and outer panel, and air inlet 6 is located on outer panel, uniformly distributed on interior plate
There are multiple small air inlet holes, diversion channel is arranged on outer side plate, and diversion channel is by airflow diversion into small air inlet hole therewith.
Deflector hole 2 is at least two, and 2 inside thread of deflector hole is connected with baffle 15 with matching；Baffle 15
Aperture it is adjustable, the aperture of the baffle 15 close apart from escape pipe 4 is small, more bigger toward both sides aperture；Deflector hole 2 is evenly distributed on
On the upper plate of collecting tray 3,3 bottom of collecting tray connects escape pipe 4, and the quantity of escape pipe 4 is one or more, when escape pipe 4
When quantity is multiple, multiple escape pipes, which are uniformly distributed, is connected to 3 bottom of collecting tray.
Collecting tray 3 is connect with escape pipe 4, when pumping gas, it may appear that the air inlet speed of the deflector hole 2 near escape pipe 4
Degree with the intake velocity of deflector hole 2 of the flow-rate ratio far from escape pipe 4 and flow will greatly (it is compared with the air-flow of intermediate deflector hole 2 anxious, two
The comparison on side is slow), will result in air-flow in this way, to flow through 12 surface of processed product uneven, influences dimensional stability.So wanting
Baffle 15 is designed to aperture difference, close to the baffle aperture 9 of the middle of escape pipe 4 by airflow balancing flow velocity and flow
It is small, it is gradually increased toward both sides baffle aperture 9.The flow with flow velocity of middle and the flow on both sides in this way can be balanced with flow velocity,
To make every nook and cranny on flitch 8 that can have air-flow process, and flow velocity and uniform flow.
Wherein, baffle 15, which is threadedly coupled, is fixed on 3 upper plate of collecting tray, and the aperture of baffle 15 oneself can adjust
Section, such as the baffle aperture 9 of script top loading is φ 4, thinks that baffle aperture 9 is small after experiment, can be changed to aperture
Larger baffle 15.
Hopper 1 is rectangular parallelepiped structure, is provided with mass flowmenter 17, and air inlet 6 at the intake valve 16 that air inlet 6 is connected to
It has been correspondingly connected with an ingress pipe 7；
Device in the present invention, air inlet lead-in mode have following several forms:
1) specific as follows using the long side plate air inlet from hopper 1:
It is arranged on any side plate that air inlet 6 is arranged in two long side plates of hopper 1 or simultaneously on two long side plates.
2) air inlet 6 is arranged on the bottom plate of hopper 1.
The advantages of this intake method are as follows: port 6 is driven on 1 bottom plate of hopper, is diverted on two long side plates of hopper 1,
Using side plate gravity principle, cooperate the outlet of bottom plate air inlet 6 and the entrance hole air inlet sealing of part flow arrangement on side plate.It is this
Intake method installation is more convenient, and gas flows through that path is short, and gas is clean, and quantity of gas leakage is fewer.
3) air inlet 6 is arranged on the top plate of hopper 1.
The less use of the intake method, since plate is thin, and gravity is little, sealing performance poorer than the mode of bottom plate air inlet one
A bit.
Device in the present invention, windstream mode have following several forms:
1) from two long side plate air inlets of hopper 1, deflector hole 2 is set on the center line of the length direction of the bottom end of hopper 1,
Air-flow is from 2 outlet of deflector hole.
The windstream mode, can effectively shorten the stroke of air-flow, guarantee that air-flow can reach in straight line L stroke
Gas outlet avoids the air turbulence phenomenon being easy to appear in longer stroke, ensure that the uniformity of single regional gas stream, and air-flow is equal
Even, zone atmosphere also can therewith uniformly.
2) from any long side plate air inlet of two long side plates of hopper 1, deflector hole 2 is set to the corresponding hopper of another long side plate
On 1 bottom panel side, air-flow is from 2 outlet of deflector hole.
Air-flow makes air-flow be evenly distributed to every layered material plate 8 from the part flow arrangement air inlet of any side plate of 1 liang of long side plate of hopper
On, after flitch 8, the part flow arrangement outlet of another side plate is reached, so that air-flow is flowed through deflector hole 2 and enters back into collecting tray 3, the water conservancy diversion
Hole 2 and 3 junction of collecting tray are provided with baffle 15, respectively flow through 2 air-flow velocity of deflector hole and flow for balancing.
Device in the present invention, feeding manner have following several forms:
1) it is provided at least two layers of insertion groove on 1 inner sidewall of hopper, processed product 12 is placed on flitch 8, manually
The flitch 8 for being placed with processed product 12 is inserted into the insertion groove；
2) device further includes having flitch frame 13, and flitch frame 13 is multilayer integrated flitch frame, the setting of 13 side wall of flitch frame
There is at least two layers of insertion groove, the flitch 8 for being placed with processed product 12 is inserted into insertion groove, and flitch frame 13 is placed on truck,
Flitch frame 13 is delivered into hopper 1 in a manner of manually or automatically.
Processed product 12 is put on flitch 8 by operator manually, then the flitch 8 for being placed with processed product 12 is inserted into
On flitch frame 13, separated between processed product 12 and flitch 8 by ceramic wafer 11.
In conclusion multizone control climate metal injection moulding vacuum sintering furnace, there are three types of air inlet lead-in modes,
There are two types of directional stream-guidance modes, feeding manner also there are two types of, above air inlet lead-in mode, windstream mode and charging side
Formula arbitrarily can mutually arrange in pairs or groups to organize integral device.
The present invention provides a kind of multizone control climate metal injection moulding vacuum sintering furnace, on the basis of above-mentioned, this
Invention also has the following characteristics that
Under the premise of the metal material of processed product 12, process time and temperature want similar, by hopper 1 divide for A, B,
C, tetra- region D, then air inlet respectively, the air inlet in four regions respectively control, and in this way divide hopper 1 for four region air inlets, gas
Atmosphere can be uniformly very much, and 1 structure of hopper optimized, shorten air-flow stroke, air-flow is made to run through whole flitch in L stroke range
8, air-flow streamlined flow solves the product carburetting near 4 mouthfuls of escape pipe and influences to produce along with being uniformly distributed for deflector hole 2
The problem of moral character energy, the product appearance and performance for being sintered out can be relatively uniform, and dimensional discrepancy is smaller, can be controlled.Such as A
Local product size is less than normal, can be controlled by turning the gas flow for 17 air inlet of mass flowmenter for controlling the region down；Such as C
Local product surface burnt hair, when due to degreasing throughput it is too small to cause binder not have completely out, can in degreasing process tune
The gas flow of the big region air inlet is controlled, and according to product size, appearance, performance carries out the control of each zone atmosphere, from
And obtain ideal product.There are also an inlet channel, which is the control outer atmosphere of hopper 1 in hopper 1 outside, makes 1 outer gas of hopper
Pressure and air pressure balance in hopper 1, prevent gas in hopper 1 from mutually leaking with the outer gas of hopper 1.
Be divided into four regions above, but be not limited to four regions, can according to processing need make appropriate choice with
The quantity of adjustment region.
In addition, the advantages of set-up mode is: pervious technology can only be sintered same type of product with furnace, such as thin
Wall part can only be sintered with furnace as parts such as thin wall such as Katos since 1 interior air-flow of hopper is communicated, if being loaded support and lock class
Or watchcase class is placed on sintering in same furnace, the product size deviation burnt is larger, and some product surfaces may carbon distribution.This reality
Product that can be different with sintered shape with furnace in example is applied, on condition that the material of product, process time and temperature close, due to each area
Throughput is different, and size can control, each Qu Kefang different product.
The present invention also provides a kind of processing technology of multizone control climate metal injection moulding vacuum sintering furnace, in reply
The multizone control climate metal injection moulding vacuum sintering furnace stated, multizone control climate metal injection moulding vacuum sintering furnace
Air inlet be divided into two-way, be all the way the direct air inlet of multizone in hopper 1, be in addition passed directly into outside hopper 1 all the way；
The processing technology of multizone control climate metal injection moulding vacuum sintering furnace includes:
(1) it charges
Processed product 12 is placed on flitch 8, the flitch 8 for placing processed product 12 is then manually inserted into material
Hopper 1 is delivered by truck in case 1, or on insertion flitch frame 13；
(2) region division
At least two groups diversion channel is offered on the outer panel of the side plate of hopper 1, diversion channel will be divided into multiple areas in hopper 1
Domain, every group of diversion channel is corresponding with an air inlet 6, after air-flow enters diversion channel by air inlet 6, is then tapped off in entering
It in small air inlet hole on side plate, is diverted on every layered material plate 8 by small air inlet hole outlet, to realize the air inlet to multiple regions；
(3) air inlet imports
On the hopper 1 of rectangular parallelepiped structure, mass flowmenter 17, matter are provided at the intake valve 16 that is connected to air inlet 6
It measures flowmeter 17 and controls gas flow air inlet, gas is delivered by air inlet 6 by the ingress pipe 7 being connected to air inlet 6；
(4) windstream
Air-flow from two long side plates of hopper 1 either side air inlet or air-flow from two long side plate air inlets of hopper 1, then
It is flowed out after the processed product 12 on flitch 8 and flitch 8, then through deflector hole 2；
(5) it is vented
Air-flow enters in collecting tray 3, collecting tray 3 is connected to escape pipe 4, eventually enters into outlet after the outflow of deflector hole 2
Gas is discharged pipe 4.
The concrete mode of above-mentioned charging procedure has following several forms:
One is be placed on processed product 12 on flitch 8, be manually inserted into the flitch 8 for being placed with processed product 12
In insertion groove on to 1 inner sidewall of hopper, charging is completed；
Another kind is that processed product 12 is placed on flitch 8, the insertion being then inserted into flitch 8 on flitch frame 13
In slot, flitch frame 13 is placed on truck, and then mode manually or automatically delivers into flitch frame 13 in hopper 1.
It includes following manner that the air inlet of above-mentioned technique, which imports:
One is be arranged on any side plate that air inlet 6 is arranged in two long side plates of hopper 1 or simultaneously two long sides
On plate, mass flowmenter 17 controls gas flow and directly enters in the long side plate air inlet 6 of hopper 1 through ingress pipe 7；
Another kind is that air inlet 6 is arranged on the bottom surface of 1 bottom plate two sides either side of hopper or the setting of air inlet 6 is being expected
On the bottom surface of 1 floor length direction center line of case, mass flowmenter 17 controls gas flow from 1 bottom plate two sides either side of hopper
Air inlet or mass flowmenter 17 control gas flow from air inlet from the bottom surface of 1 floor length direction center line of hopper at bottom surface,
The air inlet gas inlet hole through opening up on bottom plate is into the long side plate air inlet of either side in the long side plate of hopper two or air inlet simultaneously again
Into the air inlet of 1 liang of long side plate of hopper；
It is also possible that air inlet 6 is arranged on the top surface of 1 top plate two sides either side of hopper or the setting of air inlet 6 is being expected
On the top surface of 1 top plate length direction center line of case, mass flowmenter 17 controls gas flow from 1 top plate two sides either side of hopper
Air inlet or mass flowmenter 17 control gas flow from air inlet from the top surface of 1 top plate length direction center line of hopper at top surface,
The air inlet gas inlet hole through opening up on top plate is into the long side plate air inlet of either side in 1 liang of long side plate of hopper or air inlet simultaneously again
Into the air inlet of 1 liang of long side plate of hopper.
The windstream of the processing technology includes following manner:
One is from two long side plate air inlets of hopper 1, deflector hole 2 is set to the center of the length direction of the bottom end of hopper 1
On line, the air-flow after 12 effects is again via 2 outlet of deflector hole in middle position towards processed products；
Another kind is that, from any long side plate air inlet of two long side plates of hopper 1, deflector hole 2 is set to another long side plate pair
On the bottom panel side for the hopper 1 answered, the air-flow after 12 effects is again via the corresponding hopper 1 of the long side plate in the other side towards processed products
Bottom panel side on 2 outlet of deflector hole.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (9)
1. multizone control climate metal injection moulding vacuum sintering furnace, it is characterised in that: including hopper, flitch, intake valve, lead
Discharge orifice, collecting tray and escape pipe offer air inlet on the hopper, and the air inlet is provided with and communicated with intake valve, the material
Be provided at least two layers flitch in case, processed product placed on the flitch, offered on the side plate of the hopper to
Few two groups of diversion channels, the diversion channel will be divided into multiple regions in the hopper, diversion channel described in every group is corresponding with an institute
State air inlet, the hopper bottom is connected to by least two deflector holes with the collecting tray, the collecting tray with it is described
Escape pipe connection；The deflector hole is at least two, and the deflector hole inside thread is connected with baffle with matching；Institute
The aperture for stating baffle is adjustable, and the aperture of the baffle close apart from the escape pipe is small, more bigger toward both sides aperture；It is described
Deflector hole is evenly distributed on the upper plate of the collecting tray, and the confluence trench bottom connects the escape pipe, the escape pipe
Quantity is one or more, and when the quantity of the escape pipe is multiple, multiple escape pipes, which are uniformly distributed, is connected to confluence
Trench bottom.
2. multizone control climate metal injection moulding vacuum sintering furnace according to claim 1, it is characterised in that: described
The side plate of hopper is spliced by interior plate and outer panel, and the air inlet is located on the outer panel, on the interior plate
It is furnished with multiple small air inlet holes, the diversion channel is arranged on the outer panel, and the diversion channel is by airflow diversion to described in therewith
In small air inlet hole.
3. multizone control climate metal injection moulding vacuum sintering furnace according to claim 1, it is characterised in that: described
Hopper is rectangular parallelepiped structure, and the air inlet valve position of the air inlet connection is provided with mass flowmenter, a mass flowmenter
A corresponding region, and air inlet correspondence is communicated with an ingress pipe；
The air inlet lead-in mode of the multizone control climate metal injection moulding vacuum sintering furnace has following form:
One is it is long to be arranged on any side plate that the air inlet is arranged in two long side plates of the hopper or simultaneously two
On side plate；
Another kind is that the air inlet is arranged on the bottom plate of the hopper；
The third is that the air inlet is arranged on the top plate of the hopper.
4. multizone control climate metal injection moulding vacuum sintering furnace according to claim 3, it is characterised in that: described
The windstream mode of multizone control climate metal injection moulding vacuum sintering furnace has following form:
One is from two long side plate air inlets of the hopper, the deflector hole is set to the length direction of the bottom end of the hopper
Center line on, air-flow is from the deflector hole outlet；
Another kind is that, from any long side plate air inlet of two long side plates of the hopper, the deflector hole is set to another long side plate
On the bottom panel side of the corresponding hopper, air-flow is from the deflector hole outlet.
5. multizone control climate metal injection moulding vacuum sintering furnace according to claim 1, it is characterised in that: described
The feeding manner of multizone control climate metal injection moulding vacuum sintering furnace has following form:
One is be provided at least two layers of insertion groove, processed product be placed on flitch, manually on the hopper inner sidewall
The flitch for being placed with processed product is inserted into the insertion groove；
Another kind is that the vacuum sintering furnace further includes having flitch frame, and the flitch frame is multilayer integrated flitch frame, the flitch
Frame side wall is provided at least two layers of insertion groove, and the flitch for being placed with processed product is inserted into the insertion groove, the material
Grillage is placed on truck, delivers into the flitch frame in the hopper in a manner of manually or automatically.
6. the processing technology of multizone control climate metal injection moulding vacuum sintering furnace, reply appointing in claim 1-5
Multizone control climate metal injection moulding vacuum sintering furnace described in meaning one, it is characterised in that: the multizone atmosphere control
The air inlet of metal injection moulding vacuum sintering furnace processed is divided into two-way, is all the way the direct air inlet of multizone in hopper, in addition all the way from
It is passed directly into outside the hopper；
The processing technology of the multizone control climate metal injection moulding vacuum sintering furnace includes:
(1) it charges
Processed product is placed on flitch, then the flitch for placing processed product is manually inserted into hopper,
Or hopper is delivered by truck on insertion flitch frame；
(2) region division
At least two groups diversion channel is offered on the side plate of the hopper, the diversion channel will be divided into multiple areas in the hopper
Domain, diversion channel described in every group are corresponding with the air inlet, after air-flow enters the diversion channel by the air inlet, so
It is further separated into the small air inlet hole on interior plate, is diverted on every layered material plate by the small air inlet hole outlet, to realize afterwards
Air inlet to multiple regions；
(3) air inlet imports
On the hopper of rectangular parallelepiped structure, the air inlet valve position being connected to air inlet is provided with mass flowmenter, described
Mass flowmenter controls gas flow air inlet, and gas is delivered into air inlet by the ingress pipe being connected to air inlet；
(4) windstream
Air-flow from two long side plates of the hopper either side air inlet or air-flow from two long side plate air inlets of the hopper, so
Afterwards after the processed product on the flitch and flitch, then flow out through deflector hole；
(5) it is vented
Air-flow enters in collecting tray, the collecting tray is connected to escape pipe, eventually enters into outlet after deflector hole outflow
Gas is discharged pipe.
7. the processing technology of multizone control climate metal injection moulding vacuum sintering furnace according to claim 6, special
Sign is: the concrete mode of the charging procedure are as follows:
One is be placed on processed product on flitch, the flitch for being placed with processed product be inserted on the inside of hopper manually
In insertion groove on wall, charging is completed；
Another kind is that processed product is placed on flitch, then the flitch is inserted into the insertion groove on flitch frame, institute
It states flitch frame to be placed on truck, then mode manually or automatically delivers into flitch frame in the hopper.
8. the processing technology of multizone control climate metal injection moulding vacuum sintering furnace according to claim 6, special
Sign is: it includes following manner that the air inlet, which imports:
One is it is long to be arranged on any side plate that the air inlet is arranged in two long side plates of the hopper or simultaneously two
On side plate, the mass flowmenter control gas flow directly enters the long side plate air inlet of the hopper through the ingress pipe
In；
Another kind is that the air inlet is arranged on the bottom surface of hopper bottom plate two sides either side or air inlet setting
On the bottom surface of the hopper floor length direction center line, the mass flowmenter controls gas flow from the hopper bottom plate
Air inlet or mass flowmenter control gas flow are from hopper floor length direction at the bottom surface of two sides either side
Air inlet at the bottom surface of heart line, then the air inlet gas inlet hole through opening up on bottom plate is to the long side plate air inlet of either side in the long side plate of hopper two
In mouthful or air inlet simultaneously is into the air inlet of the long side plate of hopper two；
The third is that the air inlet is arranged on the top surface of hopper top plate two sides either side or air inlet setting
On the top surface of the hopper top plate length direction center line, the mass flowmenter controls gas flow from the hopper top plate
Air inlet or mass flowmenter control gas flow are from the hopper top plate length direction at the top surface of two sides either side
Air inlet at the top surface of heart line, then the air inlet gas inlet hole through opening up on top plate is to the long side plate air inlet of either side in the long side plate of hopper two
In mouthful or air inlet simultaneously is into the air inlet of the long side plate of hopper two.
9. the processing technology of multizone control climate metal injection moulding vacuum sintering furnace according to claim 8, special
Sign is: the windstream includes following manner:
One is from two long side plate air inlets of the hopper, the deflector hole is set to the length direction of the bottom end of the hopper
Center line on, towards processed products act on after air-flow again via the deflector hole outlet in middle position；
Another kind is that, from any long side plate air inlet of two long side plates of the hopper, the deflector hole is set to another long side plate
On the bottom panel side of the corresponding hopper, the air-flow after acting on towards processed products is again via corresponding on the long side plate in the other side
The deflector hole outlet of the bottom panel side of the hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052040.4A CN106735226B (en) | 2017-01-20 | 2017-01-20 | Multizone control climate metal injection moulding vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052040.4A CN106735226B (en) | 2017-01-20 | 2017-01-20 | Multizone control climate metal injection moulding vacuum sintering furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735226A CN106735226A (en) | 2017-05-31 |
| CN106735226B true CN106735226B (en) | 2019-03-19 |
Family
ID=58942519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052040.4A Active CN106735226B (en) | 2017-01-20 | 2017-01-20 | Multizone control climate metal injection moulding vacuum sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735226B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020082A (en) * | 2017-11-15 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of furnace structure of agglomerating plant |
| CN114131017A (en) * | 2021-12-09 | 2022-03-04 | 金川集团股份有限公司 | Micro-positive pressure gas-carrying de-waxing device and de-waxing method |
| CN117464006B (en) * | 2023-12-28 | 2024-03-12 | 湘潭大学 | Multi-zone control vacuum sintering furnace and temperature field and atmosphere field control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206392866U (en) * | 2017-01-20 | 2017-08-11 | 宁波恒普真空技术有限公司 | Multizone control climate metal injection moulding vacuum sintering furnace |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203170967U (en) * | 2013-03-21 | 2013-09-04 | 宁波恒普真空技术有限公司 | Vacuum degreasing sintering furnace provided with sliding rails |
| CN103264163B (en) * | 2013-05-06 | 2016-08-17 | 宁波恒普真空技术有限公司 | Metal powder injection molding vacuum degreasing fritting furnace windstream device |
| CN103317138B (en) * | 2013-06-06 | 2015-07-29 | 宁波恒普真空技术有限公司 | Metal powder injection molding vacuum degreasing fritting furnace cleaning by degreasing technique |
| CN103341628A (en) * | 2013-06-27 | 2013-10-09 | 宁波恒普真空技术有限公司 | Workbin interlayer wide-width air inlet device of metal powder injection forming vacuum degreasing sintering furnace |
| CN203356596U (en) * | 2013-07-26 | 2013-12-25 | 宁波恒普真空技术有限公司 | Metal powder injection-molding vacuum-degreasing sintering furnace with partial pressure sintering control device |
| CN203711845U (en) * | 2014-01-23 | 2014-07-16 | 宁波恒普真空技术有限公司 | Feed-box air intake device of vacuum degreasing and sintering furnace |
| CN204504223U (en) * | 2015-03-13 | 2015-07-29 | 宁波恒普真空技术有限公司 | The even oriented layer of metal powder injection molded vacuum degreasing fritting furnace flows to device of air |
| CN205464323U (en) * | 2016-02-19 | 2016-08-17 | 宁波恒普真空技术有限公司 | Multi -region accuse temperature metal thermal field fritting furnace |
-
2017
- 2017-01-20 CN CN201710052040.4A patent/CN106735226B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206392866U (en) * | 2017-01-20 | 2017-08-11 | 宁波恒普真空技术有限公司 | Multizone control climate metal injection moulding vacuum sintering furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106735226A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735226B (en) | Multizone control climate metal injection moulding vacuum sintering furnace | |
| CN102017068B (en) | Slit valve having increased flow uniformity | |
| CN101548787B (en) | Flow equalizing apparatus used in heated air circulation sterilization dryer for heating cavity | |
| CN101988732A (en) | Air port adjustable static pressure box with uniform outlet air | |
| CN104975271B (en) | Inlet duct and semiconductor processing equipment | |
| CN206392866U (en) | Multizone control climate metal injection moulding vacuum sintering furnace | |
| US20160138867A1 (en) | Feed flow conditioner for particulate feed materials | |
| CN107304474A (en) | A kind of reaction chamber and semiconductor processing equipment | |
| CN209978518U (en) | Cross-flow type grain drying machine and grain drying production line | |
| CN110981167B (en) | Two platinum passageway glass liquid of inclination type are handled conveying system | |
| CN101924015A (en) | Gas input device and semiconductor processing device | |
| CN206082225U (en) | Material mixing equipment | |
| CN202221316U (en) | Air circulation device of high temperature aging test chamber | |
| CN104419912B (en) | Gas inlet device and reaction cavity | |
| CN111573309A (en) | Speed-control type granary grain distribution system | |
| CN107537335B (en) | Nozzle, mixer and feeding system | |
| CN105088193A (en) | Reaction cavity and semiconductor processing equipment | |
| CN202778521U (en) | Constant-temperature test chamber | |
| CN206985094U (en) | One kind classification blanking device | |
| CN201971892U (en) | Pumping hole for uniformly pumping gas from vacuum film coating machine and joint thereof | |
| CN104419909A (en) | Film-coated furnace tube | |
| CN208155077U (en) | Air-distribution device | |
| CN102477545B (en) | Gas inlet device and plasma chemical vapor deposition apparatus therewith | |
| CN220280139U (en) | Granule material compounding device and compounding system | |
| CN212856140U (en) | Grinding air duct device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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.521 Haitong Road, Cixi City, Ningbo City, Zhejiang Province Patentee before: NINGBO HIPER VACUUM TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder |