CN2470032Y - General powder heating apparatus for powder matuallurgy warm-pressing technology - Google Patents
General powder heating apparatus for powder matuallurgy warm-pressing technology Download PDFInfo
- Publication number
- CN2470032Y CN2470032Y CN 01215266 CN01215266U CN2470032Y CN 2470032 Y CN2470032 Y CN 2470032Y CN 01215266 CN01215266 CN 01215266 CN 01215266 U CN01215266 U CN 01215266U CN 2470032 Y CN2470032 Y CN 2470032Y
- Authority
- CN
- China
- Prior art keywords
- heating furnace
- powder
- section
- temperature
- section heating
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model relates to a universal powder heating device in the powder metallurgy temperature pressure process, which is stack mounted by three heating furnaces that heat continually in divided sections. The surrounding of the outer wall of each heating furnace in each section is respectively provided with a heating wire that controls the temperature independently, and a heat gas pipe that is communicated with the heating furnaces in a first section and a second section. With a reasonable design and simple structure, the heating device raises the temperature fast, makes the temperature of the powder even and accurate, and can supply enough powder to meet the requirements of the industrial continuous working. The cost of the device occupies ten percent of that of the imported equipment, and is particularly applicable in middle and small powder metallurgy parts factories, thereby favorable for the popularization and application of the advanced temperature pressure process.
Description
The utility model relates to PM technique, specifically is meant the general powder heater of a kind of powder metallurgy warm-pressing technology.
Adopting warm-pressing technology to make high density high-performance iron-based powder metallurgy parts, is the advanced technology that suitability for industrialized production was succeeded in developing and be applied to the nineties.Because industrialized warm-pressing technology requires powder temperature evenly, accurately, mobile performance and apparent density are stable, meet the continuous industry production requirement for the powder ability, therefore provide a kind of powder heater that satisfies above-mentioned requirements, become the key that powder metallurgy warm-pressing technology realizes suitability for industrialized production.The producer that can produce this kind equipment at present in the world is very few, for example:
(1) EL-TEMP of U.S. NORTH AMERICA HOEGANAES company and CINCINATI machines corporation cooperative development
TMThe temperature and pressure heating system.This system is heated by resistive, and operating temperature range is a room temperature to 163 ℃, and the powder feeding ability is 2.3～9.1 kg/minute.
(2) TPP300 of American AB BOTT stove and accessory company
TMThe temperature and pressure heating system, this system is heated by resistive, and minimum is 0.9 kilogram of per minute for the powder ability, is 9 kilograms of per minutes to the maximum, and temperature control can be accurate to ± and 1.5 ℃.
(3) TOPS of U.S. GASBARRE PRODUCTS company
TMThe temperature and pressure heating system.This system also is a resistance heated, performance and above-mentioned both are similar.
(4) MICRO-MET of the common exploitation of U.S. NORTH AMERICA HOEGANAES company and U.S. microwave material company
TMThe temperature and pressure heating system adopts heating using microwave, the powder temperature homogeneous.The maximum powder supply rate is per hour 512 kilograms, and processing temperature is 140.5 ± 2.78 ℃.
(5) design of Sweden HOEGANAES AB company is by the heating system of hot oil of Sweden LINDEMETAL/TECHNIK company manufacturing, owing to be to utilize the deep fat of temperature stabilization to make thermal source, so temperature control is comparatively accurate, but that shortcoming is a volume is huge relatively, can not use flexibly.
Each tool pluses and minuses of powder firing equipment are in sum pressed the thermal source classification, and resistance heating device is compared with deep fat or microwave heating equipment, and volume is less, and temperature homogeneity and stable relative mistake some.Though the said equipment all can satisfy the warm-pressing technology industrial production requirement, its common shortcoming is to design complexity, and manufacturing cost is high relatively.The expensive powder firing equipment of purchase is implemented the temperature and pressure technology and is caused the temperature and pressure product too high, influences the temperature and pressure technology and applies.Research and develop a kind of P/C than higher, the warm-pressing technology powder heater that can accept extensively for medium and small powdered metal parts factory is the key that China applies this advanced technology of warm-pressing technology.
The purpose of this utility model is exactly in order to overcome the deficiencies in the prior art part, provide a kind of simple in structure, cost is lower, be suitable for face width, the general powder heater of powder metallurgy warm-pressing technology that performance reaches the like product international most advanced level, to advance the advanced technology extensive use.
The general powder heater of a kind of powder metallurgy warm-pressing technology, it comprises heating furnace and heat-insulation layer thereof, heating wire, temperature-controlling system, it is characterized in that it is to be formed by three heating furnace closed assemblies implementing the continuous heating of segmentation, first, second and third section heating furnace 1,7,15 offers thermocouple jack 4 respectively, heating wire 5,16 is housed around the outer wall, and being wrapped with heat- insulation layer 3,14, corresponding valve 9,11,12 is equipped with in each section outlet; First section heating furnace 1 Lower Half is provided with hot gas air inlet 19, second section heating furnace 7 first half is provided with hot gas gas outlet 18, and the one one end hot gas pipeline 6 that the other end communicates with second section heating furnace 7 bottom that communicates with first section heating furnace 1 top is housed in first and second section heating furnace heat-insulation layer 3.
The flue open form shape of first and second section heating furnace 1,7 of the general powder heater of a kind of powder metallurgy warm-pressing technology be horn mouth upwards, tapering is 25～35 ° truncated cone-shaped, the volumetric ratio of first and second section heating furnace 1,7 is 1:1.1～1.3.
The 3rd section heating furnace 13 of the general powder heater of a kind of powder metallurgy warm-pressing technology is the high-temperature-resisting silicon rubber flexible pipe, and its end and second section furnace outlet match, and the other end can be connected with press powder feeding boots.
The utility model is compared with existing powder firing equipment has following advantage:
1, this device is reasonable in design, simple in structure because this device divides three sections heating respectively, temperature control respectively, and be aided with the mobile thermal current of adjustable in pressure, programming rate is fast, powder temperature evenly, accurate.Operating temperature is adjustable between room temperature to 200 ℃, and accuracy can reach ± and 2.5 ℃, can satisfy the requirement of industrialization continuous operation up to 9 kg/minute for the powder amount, mobile, all satisfactory warm-pressing technology powder of apparent density promptly constantly are provided.
2, this device makes, installs, uses (comprising thermal source, temperature control system, hot gas heating system) all to adopt industrial current techique, operates easily and realizes.
3, this device performance/price comparison height, for example: performance reaches international like product level, and price only is 10% of a powder firing equipment price the most cheap on the present international market, is specially adapted to middle-size and small-size powdered metal parts factory.
4, help applying economical and effective powder warm compactingprocess advanced technology in developing country, particularly automobile industry development current to the increase in demand of high-performance powder metallurgy part applied the present invention and will have fabulous social benefit and economic benefit.
Fig. 1 is the general powder heater of a powder metallurgy warm-pressing technology structural representation.
By following embodiment and accompanying drawing thereof this device is further described:
As shown in Figure 1, this device is to be formed by three heating furnace closed assemblies of implementing the continuous heating of segmentation.First, second and third section heating furnace 1,7,15 offers thermocouple jack 4 respectively, heating wire 5,16 is housed and is wrapped with heat- insulation layer 3,14 around the outer wall, and corresponding valve 9,11,12 is equipped with in each section outlet.Wherein heating wire 5 can be siderochrome aluminium heating wire; Heating wire 16 can be the nickel chromium triangle heating wire.The heating wire power of first section heating furnace 1 is greater than second section, and the heating wire power of second section heating furnace 7 is greater than the 3rd section.First and second section heating furnace 1,7 is a rustless steel container, the flue shape is horn mouth upwards, tapering is 30 ° a truncated cone-shaped, wherein the bottom bore of first section heating furnace 1 be 250mm, highly for 395mm, the bottom bore of second section heating furnace 7 is 100mm, highly is 695mm.First section heating furnace 1 Lower Half is provided with hot gas air inlet 19, second section heating furnace 7 top is provided with hot gas gas outlet 18, one one end is housed in the heat-insulation layer 3 of first and second section heating furnace 1,7 communicates, the copper hot gas pipeline 6 that the other end communicates with second section heating furnace 7 bottom with first section heating furnace 1 top.For making each parts load and unload respectively, clean, hot gas pipeline 6 can segmentation, and available heat gas pipeline interface 8 interconnects during segmentation.The 3rd section heating furnace be can be anti-250 ℃ silicon rubber hose 15, its bore is that 50mm, length are 1000mm, heating wire 16 and soft heat-insulation layer 14 are equipped with in this flexible pipe outside, its end and second section heating furnace 7 outlet match, the other end can be connected with press powder feeding boots, and its volume is less than first and second section heating furnace.Heat-resistant hose 15 moves upper and lower, left and right flexibly, can directly receive flexible pipe outlet 13 in the powder feeding boots of press, also can receive on the powder feeding boots by a simple connector.2,10 is first and second section heating furnace furnace shell, and 17 is one, two section height of materials meter in the heating furnace, and 21 is the bell of first section heating furnace 1, and 20 is that first section heating-furnace covers the gas outlet that has switch.The heating wire of each section heating furnace all links to each other with its temperature control system respectively, and temperature control system and hygrosensor adopt E-type thermocouple, and adopts the industrial general temperature control technique.
This device operation principle is as follows:
The task of first section heating furnace 1 is to be rapidly heated to a little less than target temperature with the more high-power powder that makes, temperature is controlled at below the target temperature, in case excessive temperature influences the flowability of powder, preferably be controlled at following 20 ℃ of target temperature, for example, target temperature is 150 ℃, can open valve 9 when first section heating furnace 1 is heated to 130 ℃ of left and right sides with powder, and powder is flowed into second section heating furnace 7; And, continue Fast Heating at the new powder of valve-off 9 back addings.The task of second section heating furnace 7 is under the state of accurate temperature controlling, powder is heated to below the target temperature 3～5 ℃ again, to keep the good flowability of powder, be about to open when above-mentioned powder is heated to 145～147 ℃ of left and right sides valve 11, powder is flowed into the 3rd section heating furnace 15, and from valve-off 11 no longer after this.The task of the 3rd section heating furnace 15 be like clockwork powder temperature is heated to target temperature and remain on ± 2.5 ℃ scope in.
For making each section heating quicker, more even, accurate, this device with hot gas (can with nitrogen or other inert gas) as heat-conduction medium.Through being heated to target temperature or near the nitrogen or the air of target temperature, enter first section heating furnace by hot gas air inlet 19, and slowly flow from bottom to top, enter hot gas pipeline 6 by first section heating furnace top, and it is slowly mobile again by hot gas pipeline 6 hot gas to be delivered to second section heating furnace bottom from bottom to top.Being aided with the hot gas major advantage is to accelerate the heat transmission, and improves the accuracy and the uniformity of powder temperature.
For making device realize serialization production, the volumetric ratio of first and second section heating furnace 1,7 is 1: 1.1～1.3; The 3rd section heating furnace then is designed to one section heat-resistant hose, and its volume is less than first and second section heating furnace; First section heating furnace opened valve 9 after reaching desired temperature, and valve-off added new powder continuation heating for 9, the first sections again after powder entered second section heating furnace; Valve 11 between second section and the 3rd section is held open shape becomes a linker, so that powder is supplied press incessantly; Go round and begin again, realize the quantity-produced purpose.
Claims (4)
1, the general powder heater of a kind of powder metallurgy warm-pressing technology, it comprises heating furnace and heat-insulation layer thereof, heating wire, temperature-controlling system, it is characterized in that it is to be formed by three heating furnace closed assemblies implementing the continuous heating of segmentation, first, second and third section heating furnace (1), (7), (15) offer thermocouple jack (4) respectively, heating wire (5), (16) are housed and are wrapped with heat-insulation layer (3), (14) around the outer wall, corresponding valve (9), (11), (12) are equipped with in each section outlet; First section heating furnace 1 Lower Half is provided with hot gas air inlet (19), second section heating furnace (7) first half is provided with hot gas gas outlet (18), and the one one end hot gas pipeline (6) that the other end communicates with second section heating furnace (7) bottom that communicates with first section heating furnace (1) top is housed in first and second section heating furnace heat-insulation layer (3).
2, the general powder heater of a kind of powder metallurgy warm-pressing technology according to claim 1, the volumetric ratio that it is characterized in that first and second section heating furnace (1), (7) is 1:1.1～1.3.
3, the general powder heater of a kind of powder metallurgy warm-pressing technology according to claim 2, the flue shape that it is characterized in that first and second section heating furnace (1), (7) be horn mouth upwards, tapering is 25～35 ° truncated cone-shaped.
4, the general powder heater of a kind of powder metallurgy warm-pressing technology according to claim 1 is characterized in that the 3rd section heating furnace is the high-temperature-resisting silicon rubber pipe, and an end and second furnace outlet match, and the other end can be connected flexibly with press powder feeding boots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215266 CN2470032Y (en) | 2001-02-21 | 2001-02-21 | General powder heating apparatus for powder matuallurgy warm-pressing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01215266 CN2470032Y (en) | 2001-02-21 | 2001-02-21 | General powder heating apparatus for powder matuallurgy warm-pressing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470032Y true CN2470032Y (en) | 2002-01-09 |
Family
ID=33633871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01215266 Expired - Fee Related CN2470032Y (en) | 2001-02-21 | 2001-02-21 | General powder heating apparatus for powder matuallurgy warm-pressing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2470032Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522148A (en) * | 2014-10-20 | 2016-04-27 | 沙迪克株式会社 | Lamination molding apparatus |
-
2001
- 2001-02-21 CN CN 01215266 patent/CN2470032Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522148A (en) * | 2014-10-20 | 2016-04-27 | 沙迪克株式会社 | Lamination molding apparatus |
| US10046393B2 (en) | 2014-10-20 | 2018-08-14 | Sodick Co., Ltd. | Three dimensional printer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106830646A (en) | A kind of bend glass forming method of mobile terminal | |
| CN104526948A (en) | Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine | |
| CN2470032Y (en) | General powder heating apparatus for powder matuallurgy warm-pressing technology | |
| CN207922853U (en) | A kind of continuous vertical ceramic firing furnace group system | |
| CN1151006C (en) | Universal powder heating device and method for powder metallurgical warm-pressing technology | |
| CN204075219U (en) | A kind of degreasing plant of continuous sintering furnace | |
| CN204075220U (en) | A kind of sintering equipment of continuous sintering furnace | |
| CN102901347A (en) | Multipurpose microwave high-temperature pushed slab kiln | |
| CN102513946B (en) | Device for research on contact interface behavior of molten alloy dropping body and abrasive particle | |
| CN105861790A (en) | Electrothermal treatment device for helical rack | |
| CN107176783B (en) | Glass forming furnace | |
| CN207299918U (en) | Blank heating device in aluminium alloy semi-solid thixotropic forming | |
| CN206083783U (en) | Prepare temperature control system of half solid -state thick liquids heat preservation stove of aluminum alloy in succession | |
| CN216010430U (en) | Electromagnetic eddy current heating device for waste oil residues | |
| CN207062144U (en) | A kind of float flat glass glues the oxygen-enriched removal device of tin | |
| CN107914021A (en) | A kind of high pass quantity research prepares the device and method of refractory metal material sample | |
| CN206607156U (en) | A kind of pressure control device of mobile terminal bend glass shaping | |
| CN206607159U (en) | A kind of preheating device of mobile terminal bend glass shaping | |
| CN2738514Y (en) | Inductive distributing heater | |
| CN105798091A (en) | High-frequency heating and angle opening and closing integrated machine for large-specification angle iron for ultra-high-voltage iron tower | |
| CN206343622U (en) | A kind of sintering curing device for powder metallurgy | |
| CN2220049Y (en) | Quartz vibrator glass end-sealing sintering furnace | |
| CN205660138U (en) | Kirsite die casting machine | |
| CN205980743U (en) | Hot - pressing sintering machine | |
| CN213791670U (en) | Energy-saving tubular reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |