CN201799608U - Sintering pressing machine of high-frequency insert bush of wire-drawing die - Google Patents
Sintering pressing machine of high-frequency insert bush of wire-drawing die Download PDFInfo
- Publication number
- CN201799608U CN201799608U CN2010205494857U CN201020549485U CN201799608U CN 201799608 U CN201799608 U CN 201799608U CN 2010205494857 U CN2010205494857 U CN 2010205494857U CN 201020549485 U CN201020549485 U CN 201020549485U CN 201799608 U CN201799608 U CN 201799608U
- Authority
- CN
- China
- Prior art keywords
- drawing die
- sintering
- induction coil
- temperature
- wire
- 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
A sintering pressing machine of a high-frequency insert bush of a wire-drawing die comprises a pressing machine frame and a pressing head fixed at the top of the pressing machine frame; a hydraulic cylinder is installed at the bottom of the pressing machine frame; an induction coil is installed on the output shaft of the hydraulic cylinder; a wire-drawing die is installed in the induction coil; the induction coil is connected with a high-frequency induction power supply; and a temperature-measuring element is installed at one side of the induction coil and is connected with an electric control case. The sintering pressing machine uses a high-frequency heating die and is combined with a special program temperature control meter, so that the temperature of die is controllable in the whole sintering process and the heating power is controlled by the temperature control meter so as to be adjustable continuously.
Description
Technical field
The utility model belongs to wire drawing die edge cover production field, specifically relates to a kind of sintering press that uses in wire drawing die edge cover is produced.
Background technology
Wire drawing die is meant the mould of various draw metal lines, and all there is the hole of individual definite shape at the center of all wire drawing dies, circle, side, anise or other special shape.Size decreases when metal is hauled and passes nib, even shape all changes.Diamond die base and mould steel bushing are inlayed asymmetric, and the carbide alloy steel bushing skewness of sintering or the space is arranged all causes producing the U-shaped slight crack easily in drawing wire rod process.
The production technology of wire drawing die edge cover comprises several processing steps such as pressing mold, withdrawing pattern, turning.And pressing mold is just inlayed cover, is by selecting the fusing point core rod at high temperature sintering compacting higher than interior metal powder for use.Core rod is fixedly supported on punching block cover inside.In the production of wire drawing die edge cover, three kinds of modes are arranged generally.
1, the most original method is to use flame method, and alloy powder and die core of wire-drawing die are pressed in the stainless steel ring set, and it is red to adopt oxy arc that ring set is burnt, and exerts pressure when waiting alloyed powder semi-molten state again.Make tight must the combining of die core of wire-drawing die and stainless steel ring cover.
2, use the electric furnace sintering.Alloy powder and die core of wire-drawing die are pressed in the stainless steel ring set, are sintered to take out after the temperature and suppress again.
3, use the resistance sintering process, alloy powder and die core of wire-drawing die are pressed in the stainless steel ring set, adopt the electrical resistance sintering press, the a plurality of wire-drawing dies of flat benefit, feed low-voltage, high-current at the ring set two ends, make ring set that the resistance heating of self be arranged, exert pressure again when waiting alloyed powder semi-molten state.Make tight must the combining of die core of wire-drawing die and stainless steel ring cover.
The shortcoming that above-mentioned several method exists:
1) temperature and pressure is all uncontrolled in electric furnace process and the flame method sintering pressing process, and core rod is burnt in the too high meeting of temperature, and product sintered density and temperature spread are very big.
2) resistance-type sintering press generally is disposable a plurality of sintering that carry out, and the mould individual difference of sintering is very big simultaneously, and causing simultaneously, the temperature and the pressure of each mould of sintering also have very big-difference.Before sintering, must also have slight damage to fragility core rods such as rough diamonds earlier to the core rod pressurization.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the shortcoming of original sintering edge cover method, but makes pressure and the sintering temperature of wire-drawing die in edge cover process be state of a control, in order to guarantee product quality one to property.
For achieving the above object, the utility model is by the following technical solutions:
The pressure head that the utility model comprises press frame and is fixed on the press frame top, and the bottom at described press frame is provided with hydraulic cylinder, on the output shaft of hydraulic cylinder induction coil is set, wire drawing die is set in induction coil, described induction coil is connected with high frequency induction power supply; And the side at described induction coil is provided with temperature element, and temperature element is connected with electric cabinet.
On described electric cabinet, be provided with temp controlled meter.
Described electric cabinet also is connected with manual pressure regulating valve with Pressure gauge.
Described press frame is three beams, four rod structures.
Adopt the utility model of technique scheme, have following technical characterictic.
(1) adopt the high-frequency heating mould, the program temp controlled meter of supporting specialty, temperature is in controlled in whole sintering process to make mould, and the power of heating is adjustable continuously by temp controlled meter control.
(2) linkage of pressure and temperature, in the heat-agglomerating process, the temperature of conversion press can preestablish, mould can heat earlier, automatically pressurization after the temperature of arrival sintering, pressure is consistent the sintering temperature of mould and pressure by high accuracy pressure regulator valve pressure control.
Because the utility model possesses above-mentioned feature, make the utility model in carrying out wire drawing die edge cover process, reduce result's unstability to greatest extent, so following advantage is arranged.
1, because what adopt is high-frequency heating, and supporting temperature feedback system constitutes the precise dose control mode, and the temperature of the mould of each edge cover is consistent, and 700 degree temperature control errors are positive and negative 2 degree in the middle of this method sintering process.Other sintering method then has very big error, flame method accident temperature, and for naked eyes are seen, error is about 100 degree.Temperature error is little during the electric furnace sintering, and amount of cooling water is uncontrolled when taking out sintering, and general error is about 80 degree (estimation).About about 10 of resistance-type each edge cover of when cover edge, and point for measuring temperature has only one, because what difference of the height error of each mould, powder causes the temperature spread of each mould bigger, general error is about 30 degree (estimation).Because the difference of this sintering temperature causes the inconsistent of button die quality.Percent defective is difficult to control in the good range.
2, be a mould owing to use high frequency edge cover sintering press to inlay cover at every turn, pressure is controlled by high-precision pressure regulator valve, can guarantee the pressure unanimity of bearing behind each mould sintering, thereby guarantee the uniformity of the density behind the powder sintering, to the parcel of core rod with support and also can be consistent.And use the pressure control mode of flame edge cover and electric furnace edge cover mode generally is to use jack, and pressure is workman's experience, does not have uniformity.Resistance-type sintering press is owing to be a plurality of sintering, and the pressure that each mould bears is also inconsistent.
3, because this technology uses is high-frequency induction heating, wire-drawing die autonomous induction high frequency magnetic field heating during heating, other thermal technology's losses seldom, integral sintered efficient is very high, single to 700 degree sintering time need not 1 minute.Integral sintered power is about 5 kilowatts, and power consumption is low, is fit to most of environment productions, has promotional value.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a vertical view of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, the pressure head 2 that the utility model comprises press frame 1 and is fixed on press frame 1 top, and hydraulic cylinder 5 is set in the bottom of press frame 1, induction coil 10 is set on the output shaft of hydraulic cylinder 5, wire drawing die 9 is set in induction coil 10, and induction coil 10 is connected with high frequency induction power supply 7.
In eddy-current heating, also need to be provided with a series of temperature control and voltage-controlled measure.The utility model is provided with temperature element 8 in a side of induction coil 10, and temperature element 8 is input to the temperature value that collects in the electric cabinet 4, and electric cabinet 4 compares the temperature value that collects with setting value, and regulates and control according to result relatively.In addition, can on electric cabinet 4, be provided with temp controlled meter 3, show current temperature
In addition, electric cabinet 4 can also be connected with manual pressure regulating valve 11 with Pressure gauge 6, is used for the monitoring of pressure.
Need to prove that press frame 1 adopts three beams, four rod structures in the utility model, this structure operates steadily, depth of parallelism height; High frequency electric source eddy-current heating workpiece, thermal efficiency height, and supporting temperature feedback system formation precise dose control mode, its temperature control error is positive and negative 2 degree; Hydraulic cylinder 5 in the hydraulic system adopts micro pump to boost, and is furnished with high accuracy pressure regulator valve pressure control simultaneously, makes the cooperation of pressure and temperature reach the coordination perfection.
Claims (4)
1. a wire drawing die high frequency edge overlaps the sintering press, the pressure head (2) that it comprises press frame (1) and is fixed on press frame (1) top, and hydraulic cylinder (5) is set in the bottom of described press frame (1), it is characterized in that: induction coil (10) is set on the output shaft of hydraulic cylinder (5), wire drawing die (9) is set in induction coil (10), and described induction coil (10) is connected with high frequency induction power supply (7); And the side at described induction coil (10) is provided with temperature element (8), and temperature element (8) is connected with electric cabinet (4).
2. wire drawing die high frequency edge cover sintering press according to claim 1 is characterized in that: be provided with temp controlled meter (3) on described electric cabinet (4).
3. wire drawing die high frequency edge cover sintering press according to claim 2, it is characterized in that: described electric cabinet (4) also is connected with manual pressure regulating valve (11) with Pressure gauge (6).
4. wire drawing die high frequency edge cover sintering press according to claim 1, it is characterized in that: described press frame (1) is three beams, four rod structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205494857U CN201799608U (en) | 2010-09-30 | 2010-09-30 | Sintering pressing machine of high-frequency insert bush of wire-drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205494857U CN201799608U (en) | 2010-09-30 | 2010-09-30 | Sintering pressing machine of high-frequency insert bush of wire-drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799608U true CN201799608U (en) | 2011-04-20 |
Family
ID=43869127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205494857U Expired - Fee Related CN201799608U (en) | 2010-09-30 | 2010-09-30 | Sintering pressing machine of high-frequency insert bush of wire-drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708002A (en) * | 2015-04-09 | 2015-06-17 | 北京迪蒙吉意超硬材料技术有限公司 | Metal powder pre-pressing device and method for polycrystalline diamond wire-drawing die bushing |
| CN105646001A (en) * | 2016-03-18 | 2016-06-08 | 东北大学 | Ceramic wafer high pressure heat treatment device |
-
2010
- 2010-09-30 CN CN2010205494857U patent/CN201799608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708002A (en) * | 2015-04-09 | 2015-06-17 | 北京迪蒙吉意超硬材料技术有限公司 | Metal powder pre-pressing device and method for polycrystalline diamond wire-drawing die bushing |
| CN105646001A (en) * | 2016-03-18 | 2016-06-08 | 东北大学 | Ceramic wafer high pressure heat treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102909535B (en) | Method for rolling and forging bearing ring once | |
| CN104707931A (en) | Manufacturing method for large high-temperature alloy disk-type die forging parts | |
| CN107866569A (en) | A kind of method that fine copper tool-electrode is prepared based on selective laser smelting technology | |
| CN201799608U (en) | Sintering pressing machine of high-frequency insert bush of wire-drawing die | |
| CN103447530A (en) | Method for preparing pure titanium miniature parts on basis of multi-physical-field activated sintering | |
| CN206089442U (en) | Curved graphite jig of 3D curved surface glass heat | |
| CN104907472A (en) | Forging forming method for high temperature alloy frame-shaped piece | |
| CN102248355A (en) | Thermal charging device for superaudio induction wire-drawing die | |
| CN102205385B (en) | Method for die-forging forging piece by adopting single-arm hoisting ring for petroleum drilling | |
| CN205999272U (en) | A kind of graphite hot bending die | |
| CN103374677A (en) | High-density tungsten alloy forming device | |
| CN206204145U (en) | A kind of hot bending die of three sheet metal formings | |
| CN208131818U (en) | A kind of stamping die of adjustable sheet metal part flatness | |
| CN102728744A (en) | Forming method of car rear cover elbow and positioning fixture special for welding | |
| CN208787443U (en) | Heat pressing forming device is used in a kind of processing of metal casting | |
| CN208643883U (en) | Carrier bar pin shaft assemble mechanism | |
| CN207872889U (en) | A kind of waveform aluminum alloy outer cover mold | |
| CN205270600U (en) | Novel stamping die | |
| CN204097515U (en) | A kind of Fe-based amorphous iron core vacuum annealing device | |
| CN203282590U (en) | Heating devices for hot-press graphite die | |
| CN110238618A (en) | One kind is for continuous casting lead and yellow-collation copper bar material disk circle continuous production technology method | |
| CN104259304A (en) | Aero-engine netty part press-forming clamp and method | |
| CN206662066U (en) | The fast quick change product structure of diel | |
| CN204998029U (en) | Electronic screw press mould | |
| CN103008655B (en) | A kind of powder metallurgy die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130930 |