CN203426445U - Door plate interlayer branch air inlet device of metal powder injection molding vacuum degreasing sintering furnace - Google Patents
Door plate interlayer branch air inlet device of metal powder injection molding vacuum degreasing sintering furnace Download PDFInfo
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- CN203426445U CN203426445U CN201320529893.XU CN201320529893U CN203426445U CN 203426445 U CN203426445 U CN 203426445U CN 201320529893 U CN201320529893 U CN 201320529893U CN 203426445 U CN203426445 U CN 203426445U
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Abstract
The utility model relates to metal powder injection molding vacuum degreasing sintering furnaces, and discloses a door plate interlayer branch air inlet device of a metal powder injection molding vacuum degreasing sintering furnace. The door plate interlayer branch air inlet device comprises a material bin, a first door plate and a second door plate, wherein both the first door plate and the second door plate are arranged on the material bin. An interlayer air inlet channel is arranged between the first door plate and the second door plate and comprises interlayer main air inlet channels and interlayer branch air inlet channels. According to the door plate interlayer branch air inlet device, the interlayer main air inlet channels and the interlayer branch air inlet channels are arranged between the first door plate and the second door plate, each layer of interlayer main air inlet channel corresponds to one air inlet pipeline, each layer of interlayer branch air inlet channel corresponds to one layer of material plate, each row of directional airflow holes in the second door plate corresponds to one interlayer branch air inlet channel, airflow passing through each directional airflow hole can be ideally even, and therefore it can be ensured that the airflow passing through each layer of material plate is even.
Description
Technical field
The utility model relates to metal powder injection molded vacuum degreasing fritting furnace, has related in particular to a kind of metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct.
Background technology
Metal powder injection molded, it is the new technology that traditional powder metallurgical technique combines with plastic forming technology, it is the product of the multidisciplinary intersections such as collection plastic forming technology, polymer chemistry, powder metallurgy technology and Metal Material Science, utilize mould injectable to be shaped, manufacture fast the constitutional detail of high density, high accuracy, complicated shape, can rapidly and accurately design philosophy be changed into the goods with a fixed structure, functional characteristic, and can directly mass-produce part, be the once new change of manufacturing technology industry.Its injection mechanism be: by injector by the mixture of metal dust and binding agent with certain temperature, speed and pressure inject and are full of die cavity, through cooling shaping depanning, obtain the prefabricated component of definite shape, size, deviate from again the binding agent in prefabricated component and carry out sintering, can obtain having the product of certain mechanical performance.Its forming technology flow process is as follows: 1. metal dust and binding agent batch mixing, be 2. shaped, and 3. degreasing, 4. sintering, 5. post processing, 6. finished product.
Wherein, degreasing and sintering are the steps of most critical.Degreasing is the process that shaping base is removed contained binding agent in body before sintering.Degreasing process must guarantee that binding agent little by little discharges along the minim channel between particle from the different parts of briquet, and does not damage the high strength of shaping base.Sintering can make the degreasing blank of porous shrink densification becomes the goods with certain tissue and performance.
The inner primary structure of metal current powder injection forming vacuum degreasing fritting furnace body of heater is except calandria and heat-insulation layer, also be provided with an airtight hopper, hopper is provided with safety valve, and hopper is inner to communicate with degreasing pipeline, and hopper is outside to communicate with the gas ducting being arranged on body of heater.In skimming processes, calandria heating, vavuum pump group is constantly bled by degreasing pipeline, and gas ducting is constantly filled with protective gas, makes the inside and outside pressure reduction that forms of hopper, impels gas unidirectional to flow.Along with the rising of skimming temp, binding agent changes into gaseous state, by spreading and permeate through pore, arrives piece surface.Now crucial problem is that can binding agent be pulled away equably, guarantees that binding agent can not be deposited on part again.In original structure, as shown in Figure 1 to Figure 2, the gas outside hopper mainly enters hopper inside by crack between a door and its frame and the safety valve at hopper two ends, can not guarantee that air-flow can be equably by each layered material plate in hopper.Inhomogeneous air-flow can make binding agent still be deposited on part, inhomogeneous air-flow also can cause the temperature distributing disproportionation of hopper inside simultaneously, thereby the performance that the part in same hopper is obtained after sintering is different, parameters such as accessory size size, density height is inconsistent.
Summary of the invention
The utility model is for not guaranteeing in prior art that air-flow can be equably by each layered material plate in hopper, the different problem of performance that causes the part in same hopper to obtain after sintering, provide a kind of air inflow of each layer in hopper that can make more even, guarantee that air-flow can be equably by each layered material plate in hopper, thereby binding agent is removed on uniform and complete ground, reach the metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct of the performance that improves after part sintering and uniformity texts.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct, comprise hopper, also comprise the first door-plate and the second door-plate that are all arranged on hopper, between the first door-plate and the second door-plate, be provided with interlayer inlet channel, interlayer inlet channel comprises that the main inlet channel of interlayer and interlayer divide inlet channel.The setting of the first door-plate and the second door-plate makes hopper integral body remain a closed structure, thereby can when degreasing and sintering, guarantee that the binding agent of part in hopper or other impurity can not pollute heat-insulation layer, calandria and inboard wall of furnace body; And the first door-plate and the second door-plate are for sandwich establishment inlet channel, gas enters after the main inlet channel of interlayer, flow to again interlayer and divide inlet channel, the gas that can realize by windstream hole reaches evenly desirable, thereby guarantee by the air-flow of each layered material plate even, the binding agent of part is removed on uniform and complete ground, thereby acquisition performance is higher and the good part of uniformity.
As preferably, the first door-plate and/or the second door-plate are provided with interlayer air inlet duct, thereby the second door-plate and the laminating of the first door-plate form interlayer inlet channel.Direct sandwich establishment air inlet duct on the first door-plate and/or the second door-plate, the first door-plate and the second door-plate fit tightly.
As preferably, the main inlet channel of interlayer all divides inlet channel to communicate with interlayer.
As preferably, the second door-plate is provided with the uniform windstream hole of arranging, and interlayer divides inlet channel to communicate with hopper inside by windstream hole.Gas enters after the main inlet channel of interlayer, then flows to interlayer and divide inlet channel, and enters hopper inside by windstream hole, windstream hole guarantee gas by the mode of precognition by every layered material plate.
The utility model is provided with the main inlet channel of interlayer between the first door-plate being provided with and the second door-plate and interlayer divides inlet channel, and the corresponding admission line of the main inlet channel of each interlayer, each interlayer divides inlet channel corresponding one deck flitch, each on the second door-plate is ranked and divides inlet channel to the corresponding interlayer of airflow hole, gas first enters after the main inlet channel of interlayer by admission line under the control of mass flow controller, flow to again each interlayer and divide inlet channel, finally by crossing windstream hole uniformly by each layered material plate in hopper, guarantee in skimming processes and sintering process in hopper that the binding agent of part or other impurity can not pollute calandria, heat-insulation layer and inboard wall of furnace body, and can make to arrive evenly desirable by the air-flow in each windstream hole, thereby guarantee by the air-flow of each layered material plate even, reach the performance and the uniformity texts thereof that improve after part sintering, such as corresponding raisings of performance such as parts densities after sintering, accessory size size, the also corresponding raising of the density isoparametric uniformity of height.In column inside, be provided with through hole, admission line is communicated with the main inlet channel of interlayer by the through hole of column inside, column both can be used as the support column that supports hopper, can be used as again the passage that air inlet is used, guaranteed in the situation that original structure is substantially constant, still can meet the performance that realize to improve after part sintering and the designing requirement of uniformity texts thereof.
Accompanying drawing explanation
Fig. 1 is the flow direction that in prior art, crack between a door and its frame and the safety valve of gas by hopper two ends enters hopper inside.
Fig. 2 is the cut-away section front view of metal powder injection molded vacuum degreasing fritting furnace in prior art.
Fig. 3 is section left view of the present utility model.
Fig. 4 is the A portion enlarged drawing of Fig. 3.
Fig. 5 is the disassembly diagram of the first door-plate and the second door-plate.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-hopper wherein, the 2-the first door-plate, the 3-the second door-plate, the main inlet channel of 4-interlayer, 5-interlayer divides inlet channel, 6-windstream hole, 7-admission line, 8-through hole, 9-column, 10-air admission hole, 11-mass flow controller, 12-flitch, 13-body of heater, 14-safety valve, 15-heat-insulation layer, 16-calandria, 17-degreasing pipeline, the 18-the first valve, 19-trap, 20-vavuum pump.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct, as shown in Figures 3 to 5, comprise hopper 1, also comprise the first door-plate 2 and the second door-plate 3 that are all arranged on hopper 1, the first door- plate 2 and 3, the second door-plate are provided with interlayer inlet channel, and interlayer inlet channel comprises that the main inlet channel 4 of interlayer and interlayer divide inlet channel 5.The setting of the first door-plate 2 and the second door-plate 3 makes hopper 1 integral body remain a closed structure, thereby can when degreasing and sintering, guarantee that the binding agent of hopper 1 interior part or other impurity can not pollute heat-insulation layer 15, calandria 16 and body of heater 13 inwalls; And the first door-plate 2 and the second door-plate 3 are for sandwich establishment inlet channel, and the main inlet channel 4 of interlayer and interlayer divide inlet channel 5 cooperations can make the air inflow of each layer in hopper 1 more even.In the present embodiment, hopper 1 two ends are equipped with the first door-plate 2 and the second door-plate 3.In hopper 1, be provided with some flitch 12, flitch 12 is to insert in hopper 1 by the fluting on hopper 1 side plate.Flitch 12 both ends of the surface all with the second door-plate 3 laminating, thereby guarantee that gas 6 flows into hopper 1 when inner from windstream hole, only can pass through this layered material plate 12, and can not flow to other layers.Flitch 12 is for placing part.
In the present embodiment, interlayer air inlet duct is arranged on the first door-plate 2, thereby the second door-plate 3 and the first door-plate 2 laminatings form interlayer inlet channel.Directly on the first door-plate 2, slot, then coordinate formation passage with the second door-plate 3, this technique is comparatively simple, saves manufacturing process and manufacturing cost.The first door-plate 2 and the second door-plate 3 fit tightly, and the second door-plate 3 fits tightly in hopper 1 both ends of the surface, thereby can prevent from entering the main inlet channel 4 of interlayer and interlayer divides the gas of inlet channel 5 to run out of by admission line 7.
The main inlet channel 4 of interlayer all divides inlet channel 5 to communicate with interlayer.
The second door-plate 3 is provided with the uniform windstream hole 6 of arranging, and interlayer divides inlet channel 5 to communicate with hopper 1 inside by windstream hole 6.
Also comprise admission line 7, admission line 7 is connected with the main inlet channel 4 of interlayer.Admission line 7 is used as the passage that gas enters the main inlet channel 4 of interlayer.
Also comprise column 9, admission line 7 is provided with the column 9 of through hole 8 by inside and the air admission hole 10 being arranged on hopper 1 base plate communicates with the main inlet channel 4 of interlayer.The quantity of the main inlet channel 4 of interlayer is corresponding with the quantity of admission line 7, interlayer divides the quantity of inlet channel 5 corresponding with the number of plies of flitch 12, the second door-plate 3 is provided with some being ranked to airflow hole 6, often be ranked and be uniformly distributed to airflow hole 6, and be often ranked and divide inlet channel 5 corresponding to the position of airflow hole 6 with every interlayer.In the present embodiment, the main inlet channel 4 of interlayer of 3, first door-plate 2 of hopper 1 every one end and the second door-plate is two.In column 9 inside, be provided with through hole 8, admission line 7 is communicated with the main inlet channel 4 of interlayer by the air admission hole 10 on through hole 8, hopper 1 base plate, column 9 both can be used as the support column that supports hopper 1, can be used as again the passage that air inlet is used.
Admission line 7 is provided with valve.In the present embodiment, valve is mass flow controller 11.The gas flow that mass flow controller 11 can effectively guarantee to enter admission line 7 is identical, thereby after also guaranteeing that gas uniform distributes, from windstream hole, 6 is also basic identical through the gas flow of hopper 1 inner each layered material plate 12.
Arrow in figure is the flow direction of gas.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (4)
1. metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct, comprise hopper (1), it is characterized in that: also comprise the first door-plate (2) and the second door-plate (3) that are all arranged on hopper (1), between the first door-plate (2) and the second door-plate (3), be provided with interlayer inlet channel, interlayer inlet channel comprises that the main inlet channel of interlayer (4) and interlayer divide inlet channel (5).
2. metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer according to claim 1 branch inlet duct, it is characterized in that: the first door-plate (2) and/or the second door-plate (3) are provided with interlayer air inlet duct, the second door-plate (3) and the first door-plate (2) thus laminating forms interlayer inlet channel.
3. metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer according to claim 1 branch inlet duct, is characterized in that: the main inlet channel of interlayer (4) all divides inlet channel (5) to communicate with interlayer.
4. according to the metal powder injection molded vacuum degreasing fritting furnace door-plate interlayer branch inlet duct described in claim 1 or 2 or 3, it is characterized in that: the second door-plate (3) is provided with the uniform windstream hole (6) of arranging, interlayer divides inlet channel (5) to communicate with hopper (1) inside by windstream hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529893.XU CN203426445U (en) | 2013-08-28 | 2013-08-28 | Door plate interlayer branch air inlet device of metal powder injection molding vacuum degreasing sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529893.XU CN203426445U (en) | 2013-08-28 | 2013-08-28 | Door plate interlayer branch air inlet device of metal powder injection molding vacuum degreasing sintering furnace |
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| CN203426445U true CN203426445U (en) | 2014-02-12 |
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| CN201320529893.XU Expired - Lifetime CN203426445U (en) | 2013-08-28 | 2013-08-28 | Door plate interlayer branch air inlet device of metal powder injection molding vacuum degreasing sintering furnace |
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| CN (1) | CN203426445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941009A (en) * | 2017-10-27 | 2018-04-20 | 宁波恒普真空技术有限公司 | A kind of vacuum degreasing fritting furnace and method |
| CN113523284A (en) * | 2021-05-25 | 2021-10-22 | 宁波市鑫瑞鸿新材料科技有限公司 | Rapid thermal desorption sintering integrated forming metal feed and application method thereof |
| JP2022515207A (en) * | 2018-12-21 | 2022-02-17 | 寧波恒普真空科技股▲フン▼有限公司 | Vacuum degreasing sintering furnace and its usage |
-
2013
- 2013-08-28 CN CN201320529893.XU patent/CN203426445U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941009A (en) * | 2017-10-27 | 2018-04-20 | 宁波恒普真空技术有限公司 | A kind of vacuum degreasing fritting furnace and method |
| CN107941009B (en) * | 2017-10-27 | 2023-08-18 | 宁波恒普技术股份有限公司 | Vacuum degreasing sintering furnace and method |
| JP2022515207A (en) * | 2018-12-21 | 2022-02-17 | 寧波恒普真空科技股▲フン▼有限公司 | Vacuum degreasing sintering furnace and its usage |
| JP7144617B2 (en) | 2018-12-21 | 2022-09-29 | 寧波恒普真空科技股▲フン▼有限公司 | Vacuum degreasing sintering furnace and its usage |
| CN113523284A (en) * | 2021-05-25 | 2021-10-22 | 宁波市鑫瑞鸿新材料科技有限公司 | Rapid thermal desorption sintering integrated forming metal feed and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo, Zhejiang, 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. |
|
| CP03 | Change of name, title or address | ||
| 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 Technology Co.,Ltd. Address before: No.365, Xinxing 1st Road, Cixi hi tech Industrial Development Zone, Ningbo, Zhejiang, 315300 Patentee before: Ningbo Hengpu Vacuum Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |