CN108384978A - A kind of processing method of melting heating equipment and hard platinum for noble metal - Google Patents
A kind of processing method of melting heating equipment and hard platinum for noble metal Download PDFInfo
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- CN108384978A CN108384978A CN201810378181.XA CN201810378181A CN108384978A CN 108384978 A CN108384978 A CN 108384978A CN 201810378181 A CN201810378181 A CN 201810378181A CN 108384978 A CN108384978 A CN 108384978A
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- Prior art keywords
- heating
- melting
- cavity
- dish
- heating dish
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 165
- 238000002844 melting Methods 0.000 title claims abstract description 55
- 230000008018 melting Effects 0.000 title claims abstract description 55
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 25
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 25
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 15
- 229910052737 gold Inorganic materials 0.000 claims description 15
- 239000010931 gold Substances 0.000 claims description 15
- 238000000137 annealing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000010970 precious metal Substances 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910000923 precious metal alloy Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 241000557133 Hunnemannia fumariifolia Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910007948 ZrB2 Inorganic materials 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 description 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- NFYLSJDPENHSBT-UHFFFAOYSA-N chromium(3+);lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+3].[La+3] NFYLSJDPENHSBT-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910021343 molybdenum disilicide Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of processing methods of melting heating equipment and hard platinum for noble metal, a kind of melting heating equipment for noble metal, including heating cavity, controller outside heating cavity, heating dish in heating cavity, crucible set on heating dish upper surface, and in heating cavity and drive heating dish rotation rotating mechanism；Rotating mechanism includes motor, the worm screw being fixedly connected with the power output shaft of motor, the turbine being connect with worm screw, and the shaft for being fixedly arranged on heating dish lower face and being fixedly connected with turbine；Shaft is equipped with gag lever post；Travel switch is equipped in heating cavity at the rotary motion trace of the gag lever post；Heating dish temperature sensor is additionally provided in heating dish, heating dish, heating dish temperature sensor, motor and travel switch are electrically connected with the controller.This is used for the melting heating equipment of noble metal, simple in structure, easy to use, and especially precious metal raw material is heated highly uniform in crucible.
Description
Technical field
The present invention relates to a kind of melting heating equipment for noble metal more particularly to a kind of melting for the processing of hard platinum
The processing method for refining heating equipment and hard platinum.
Background technology
In the manufacturing process of jewellery, precious metal alloys can be all used substantially.The making of precious metal alloys is by various
Raw metal is fused together in melting heating equipment, and satisfactory alloy is then made.Existing melting heating equipment
Complicated, especially raw metal is in melting, using the whole mode of heating that heating element is located to cavity wall,
Since heating cavity is excessive, for being the noble metal heated on a small quantity every time, this traditional structure leads to higher heat
Loss in order to which entire cavity is heated evenly, and causes the smelting time of raw metal partially long, and the thermal energy used is more so that raw
Produce high expensive.
Invention content
In order to make up the defect of the above-mentioned prior art, the object of the present invention is to provide a kind of simple in structure, precious metal raw materials
The melting heating equipment being heated evenly.
In order to achieve the above objectives, the technical scheme is that：
A kind of melting heating equipment for noble metal, including heating cavity, the controller being set to outside heating cavity, are set to
Heating dish in heating cavity is set to the crucible of heating dish upper surface, and in heating cavity and drives the heating dish
The rotating mechanism of rotation；The rotating mechanism includes motor, the worm screw being fixedly connected with the power output shaft of motor, is connected with worm screw
The turbine connect, and the shaft that is fixedly arranged on the heating dish lower face and is fixedly connected with turbine；The shaft is equipped with gag lever post；
Travel switch is equipped in the heating cavity at the rotary motion trace of the gag lever post；It is additionally provided with heating dish in the heating dish
Temperature sensor, the heating dish, heating dish temperature sensor, motor and travel switch are electrically connected with the controller.
Further, in order to simplify structure, facilitate crucible to be mounted in heating dish and rotate therewith, and also to side
Just crucible is replaced, the lower face of the crucible, which is equipped with, fixes protrusion；The upper surface of the heating dish is equipped with and fixes protrusion matching
The card slot of conjunction.
Further, raw metal is aoxidized in melting process in order to prevent, and crucible is placed in an oxygen-free environment, institute
It includes rack and the seal chamber in rack to state heating cavity；The heating dish and the crucible are set to the seal chamber
It is interior；The heating cavity is additionally provided with the bleeding point and inflating port being connected to seal chamber；What inflating port poured is inert gas.
Further, other sundries enter in seal chamber in order to prevent, and filter plate is equipped at the inflating port.
Further, it is required in order to observe whether the vacuum degree in seal chamber meets melting in time, the heating
Cavity is equipped with the vacuum meter for detecting vacuum degree in the seal chamber.
Further, in order to observe the molten condition of raw metal in crucible in time, the heating cavity, which is equipped with, to be seen
Examine window.
Further, the opening and closing of heating dish is controlled for convenience, and the heating cavity is equipped with for being opened and closed the heating dish
Control switch.
Further, in order to detect the temperature in crucible in real time, the heating cavity, which is equipped with, to be detected in the crucible
The cavity temperature sensor of temperature.
Further, in order to simplify structure, ease of assembly, the seal chamber includes lower chamber, and be covered on it is described under
Upper cover above cavity；The downside of the upper cover outer end is equipped with seal convexity；The upper surface of the cavity of resorption body sidewall is equipped with and institute
State the matched seal groove of seal convexity.
Further, it when fastening upper cover, is fastened in order to ensure the sealing of upper cover and lower housing, the upper cover and lower chamber
Fastening at be equipped with the upper cover closure sensor that is electrically connected with controller.
The processing method of the hard platinum of the present invention, the hard platinum are formed using the component melting of following weight ratio：Platinum 95%；
Copper 0.8-1.2%；Palladium 1.3-1.7%；Lead 1.8-2.2% and indium 0.4-0.6%.
Further, when each melting processing, the total weight of each component is 300-500 grams, is set in melting above-mentioned heating
Standby middle heating melting, heating time are 3 minutes, and temperature is 1880 degree；After heating melting, in melting heating equipment at annealing
Reason, time are 1 minute, 1500 degree of temperature；The metal derby after annealing is taken out from melting heating equipment again, is placed in water cold
But, until gold bullion becomes normal color, drying is then taken out.
Further, it when heating melting in the melting heating equipment, completes to evacuate before being warming up to 1000 degree
Gas is re-filled with the step of argon gas；After temperature reaches 1100 degree, heating dish is primary with every 4-10 seconds reciprocally swinging, and swing angle is
180-330 degree reaches 1880 degree, and heating dish is primary with every 2-4 seconds reciprocally swinging, and swing angle is 30-120 degree；It is cold in water
But the metal derby after carries out six face punching presses with press device and beats, and metal derby is made to become square body.
Compared with prior art, melting heating equipment of the present invention, it is simple in structure, in particular for the earthenware of molten metal raw material
Crucible is set up directly on the upper surface of heating dish so that the heat of heating dish is quickly transferred to the bottom of crucible so that platinum etc. is expensive
Metal is preheated in advance, shortens heating time on the whole, when causing the thermal loss of entire heating cavity when reloading,
Crucible is also preferentially to be heated when heating again.Heating dish is rotated mechanism and drives rotation, and gag lever post is provided in shaft,
Travel switch is provided in heating cavity, when motor drives shaft rotation, the crucible set on heating dish upper surface is followed immediately
It rotates together, when gag lever post touches travel switch, after controller receives signal, controller controls motor and drives shaft reversed
It rotates, for the raw metal in crucible under effect of inertia, mixing is more uniform, is heated also more uniformly；Travel switch is generally set
Two, when travel switch uses adjustable mounting structure are set, is turned to adjust by adjusting the spacing between two travel switches
The counter-rotational frequency of axis.The platinum processed using the processing method of hard platinum of the invention, hardness reach 380 degree.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is a kind of stereogram of melting heating equipment specific embodiment for noble metal of the invention；
Fig. 2 is a kind of sectional view of melting heating equipment specific embodiment for noble metal of the invention；
Fig. 3 is a kind of control principle block diagram of melting heating equipment specific embodiment for noble metal of the invention；
Fig. 4 cuts for a kind of examining report for the platinum that the processing method specific embodiment of hard platinum is processed of the present invention
Figure.
Specific implementation mode
In order to more fully understand the present invention technology contents, with reference to specific embodiment to technical scheme of the present invention into
One step introduction and explanation, but not limited to this.
As shown in FIG. 1 to 3, a kind of melting heating equipment for noble metal, including heating cavity 10 are set to heating chamber
The controller S of body 10, the heating dish 20 being set in heating cavity 10 are set to the crucible 30 of 20 upper surface of heating dish, are set to heating
In cavity 10 and the rotating mechanism 40 of the rotation of heating dish 20 is driven to be set to heating cavity set on the observation window 50 of heating cavity 10
10 and for being opened and closed the control switch 60 of heating dish 20, and set on heating cavity 10 and it is used to detect the chamber of temperature in crucible 30
Interior temperature sensor 70.
Specifically, rotating mechanism 40 includes motor 41, the worm screw 42 being fixedly connected with the power output shaft of motor 41, with snail
The turbine 43 that bar 42 connects, and the shaft 44 that is fixedly arranged on 20 lower face of heating dish and is fixedly connected with turbine 43.Shaft 44 is set
There is gag lever post 45；It is located at the rotary motion trace of gag lever post 45 travel switch 46 there are two setting, and two rows in heating cavity 10
Cheng Kaiguan 46 is symmetrical arranged with shaft 44 for symmetrical centre.
Specifically, being equipped with heating dish temperature sensor (as shown in Figure 3) in heating dish 20.
Specifically, heating dish 20, heating dish temperature sensor, motor 41 and travel switch 46 are electrically connected with controller；
The driving circuit being electrically connected between controller and all parts can be searched using conventional driving circuit in Baidu.com
Rope is to many relevant driving circuits.
Specifically, controller S settings are in 10 outer surface of heating cavity, including control circuit (being set to inside) and control circuit
Human-computer interaction interface (being set to surface) together, display screen and indicator light, start button etc. may be used in human-computer interaction interface.
In other embodiments, human-computer interaction interface can also use touch-sensitive display, to increase the input function of some parameters, such as
Temperature and time etc..
Further, in other embodiments, the lower face of crucible 30, which is equipped with, fixes raised (not shown)；Heating dish
20 upper surface is equipped with and fixes the matched card slot (not shown) of protrusion.
Further, in other embodiments, heating cavity 10 includes rack 15 and the seal chamber 11 in rack 15；
Heating dish 20 and crucible 30 are set in seal chamber 11；Heating cavity 10 is additionally provided with the (pumping of bleeding point 12 being connected to seal chamber 11
Mouth 12 is connect with vacuum generator, will be evacuated in seal chamber 11) and inflating port 13 (inflating port 13 and nitrogen inlet device company
It is logical, after the completion of being vacuumized in chamber 11 to be sealed, inject nitrogen into seal chamber 11)；Filter plate 14 is equipped at inflating port 13.
Preferably, in other embodiments, heating cavity 10 is equipped with the vacuum meter for detecting vacuum degree in seal chamber 11
80。
More specifically, seal chamber 11 includes lower chamber (sinkage type structure as shown in Figure 2, using spherical shape, with to the greatest extent
Amount reduces the volume of seal chamber), and it is covered on the upper cover 16 above lower chamber；The downside of 16 outer end of upper cover is equipped with seal convexity
17；The upper surface of cavity of resorption body sidewall is equipped with is equipped with mounting hole with 17 matched seal groove of seal convexity, lower chamber centre, and
Equipped with bearing, for installing shaft 44.
Further, in other embodiments, it is equipped at the fastening of upper cover 16 and lower chamber and is electrically connected with controller
Upper cover closure sensor 90.
When the hard platinum of melting, each noble metal is prepared by following parts by weight：95% platinum, with copper 1%, palladium 0.5%, lead
2.0%, indium 0.5%；Proportioned all noble metals are all put into the crucible 30 of the present invention, then lid closes lid 16, when
After controller S receives the conjunction of 16 sealing cover of upper cover, operation vacuumizes on the touchscreen immediately, and the vacuum degree in chamber 11 to be sealed reaches
To after requirement, argon gas being poured in seal chamber 11, then opens heater switch, melt all noble metals, the time is 3 minutes, temperature
Degree is 1880 degree.
Due to needing 1800 degree of high temperature, heating dish to need the heating element using high temperature, such as Lanthanum Chromite fever
Disk, molybdenum disilicide heat-generating disc, zirconium dioxide heat-generating disc or zirconium diboride composite ceramic heating disk, and or graphite electric hot tray.
In other embodiments, a crucible cover is detachably suspended on (by a kind of clamp system in the inside of upper cover
It is fixed), in heating up process, crucible cover is in suspension status, to be heated to arrive, and when turning annealed condition, passes through upper cover
Handle is stirred in outer surface, and crucible cover is split out, and crucible cover automatically falls off to crucible that (under discrete state, the distance of the two exists
Between 30-100mm), metal derby can be taken out from heating dish by the crucible with crucible cover together, is carried out in cavity at this time
Annealing, is placed on heating dish, while also crucible cover is stuck in clamp system together with the stylish raw metal to be heated and crucible
On, wait for closing lid next time to operate (crucible cover is fallen on crucible).The crucible and crucible cover and metal derby put down, is placed on sealing
The other positions of chamber make it be kept for 1 minute in the state of 1500 degree by the buffer action of crucible cover.Preferred real
It applies in example, by two parts of upper cover point, and centre is equipped with partition board, seal chamber is divided into heating zone and annealed zone, when annealed zone
The annealing time of metal derby arrives, and can take out in advance, carries out cooling treatment in water.
The invention also discloses a kind of processing method of hard platinum, the hard platinum uses the component melting of following weight ratio
It forms：Platinum 95%；Copper 0.8-1.2%；Palladium 1.3-1.7%；Lead 1.8-2.2% and indium 0.4-0.6%.
Further, when each melting processing, the total weight of each component is 300-500 grams, is set in melting above-mentioned heating
Standby middle heating melting, heating time are 3 minutes, and temperature is 1880 degree；After heating melting, in melting heating equipment at annealing
Reason, time are 1 minute, 1500 degree of temperature；The metal derby after annealing is taken out from melting heating equipment again, is placed in water cold
But, until gold bullion becomes normal color, drying is then taken out.
Further, when heating melting in melting heating equipment, pumping air is completed before being warming up to 1000 degree and is filled again
The step of entering argon gas；After temperature reaches 1100 degree, heating dish is primary with every 4-10 seconds reciprocally swinging, swing angle 180-
330 degree, reach 1880 degree, heating dish is primary with every 2-4 seconds reciprocally swinging, and swing angle is 30-120 degree；After cooling down in water
Metal derby carry out six face punching presses with press device and beat, so that metal derby is become square body.
The explanation of processing method of the present invention is carried out by taking the procedure of processing of a specific product as an example：
1. first preparing each noble metal in proportion, the platinum if content is 95% need to match copper 1%, palladium 0.5%, lead 2.0%, indium
0.5%；
2. all noble metals prepared are all put into molten golden cup, and set die reversing machine (i.e. melting shown in Fig. 1-2 adds
Hot equipment) program, open the switch of argon gas (inflate) and oxygen (taking out air), then click plus hot molten gold key, progress
Melt metal derby；Production time is：3 minutes, 1880 degree of temperature；Each 300-500 grams or so of total weight；
3. the gold bullion melted is made annealing treatment, the production time is 1 minute, and 1500 degree of temperature all grills thoroughly gold bullion；
4. the gold bullion for having moved back fire is done fried water process (cooling down into the water), until metal derby becomes normal color, so
Drying is taken out afterwards；
5. the gold bullion for frying water carries out four sides punching press with hydraulic press and beats, gold bullion is set to become square, and stronger；
6. the gold bullion of square is depressed into the size that gold bar is specified by the thick pressuring line groove on the right side of line-pressing machine, then anneal
Processing；Gold bar can manufacture the hard gold ornaments of different styles according to product requirement.
Gold bar is by sending state's inspection detection, and the hardness that can measure platinum is 380 degree, and specific detection data please check described in Fig. 4
Survey report sectional drawing, data therein are respectively the testing result of the different location of same gold bar, and the hardness of common platinum is
HV140 degree or so.
In other embodiments, the scheme being carried out at the same time with annealing using heating, when such processing method can save
Between, and save the energy.(consolidated by a kind of clamp system that is, detachably suspended on a crucible cover in the inside of upper cover
It is fixed), in heating up process, crucible cover is in suspension status, to be heated to arrive, and when turning annealed condition, passes through upper exterior surface
Stir handle, crucible cover is split out, crucible cover automatically falls off to crucible that (under discrete state, the distance of the two is 30-
Between 100mm), metal derby can be taken out from heating dish by the crucible with crucible cover together, is annealed in cavity at this time
Processing, is placed on heating dish, while also crucible cover is stuck on clamp system together with the stylish raw metal to be heated and crucible, etc.
Wait for closing lid operation next time (crucible cover is fallen on crucible).The crucible and crucible cover and metal derby put down, is placed on seal chamber
Other positions make it be kept for 1 minute in the state of 1500 degree by the buffer action of crucible cover.In preferred embodiment
In, by two parts of upper cover point, and centre is equipped with partition board, seal chamber is divided into heating zone and annealed zone, when the metal of annealed zone
The annealing time of block arrives, and can take out in advance, carries out cooling treatment in water.
In summary：Melting heating equipment of the present invention, simple in structure, the crucible in particular for molten metal raw material is direct
It is arranged in the upper surface of heating dish so that the heat of heating dish is quickly transferred to the bottom of crucible so that the noble metals such as platinum carry
Before preheated, shorten heating time on the whole, when causing the thermal loss of entire heating cavity when reloading, crucible in
It is also preferentially to be heated when heating again.Heating dish is rotated mechanism and drives rotation, and gag lever post, heating chamber are provided in shaft
It is provided with travel switch in vivo, when motor drives shaft rotation, the crucible set on heating dish upper surface and then turns together immediately
Dynamic, when gag lever post touches travel switch, after controller receives signal, controller control motor drives shaft to rotate backward,
For raw metal in crucible under effect of inertia, mixing is more uniform, is heated also more uniformly；Travel switch generally setting two
It is a, it is anti-to adjust shaft by adjusting the spacing between two travel switches when travel switch uses adjustable mounting structure
To the frequency of rotation.
It is above-mentioned only with embodiment come the technology contents that further illustrate the present invention, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of melting heating equipment for noble metal, it is characterised in that：Including heating cavity, the control being set to outside heating cavity
Device processed, the heating dish being set in heating cavity are set to the crucible of heating dish upper surface, and in heating cavity and drive institute
State the rotating mechanism of heating dish rotation；The rotating mechanism includes motor, the worm screw being fixedly connected with the power output shaft of motor,
The turbine being connect with worm screw, and the shaft that is fixedly arranged on the heating dish lower face and is fixedly connected with turbine；The shaft is set
There is gag lever post；Travel switch is equipped in the heating cavity at the rotary motion trace of the gag lever post；In the heating dish also
Equipped with heating dish temperature sensor, the heating dish, heating dish temperature sensor, motor and travel switch and controller electricity
Property connection.
2. the melting heating equipment according to claim 1 for noble metal, it is characterised in that：The lower face of the crucible
It is raised equipped with fixing；The upper surface of the heating dish is equipped with and fixes the matched card slot of protrusion.
3. the melting heating equipment according to claim 1 for noble metal, it is characterised in that：The heating cavity includes
Rack and the seal chamber in rack；The heating dish and the crucible are set in the seal chamber；The heating cavity
It is additionally provided with the bleeding point and inflating port being connected to seal chamber.
4. the melting heating equipment according to claim 4 for noble metal, it is characterised in that：It is equipped at the inflating port
Filter plate.
5. the melting heating equipment according to claim 4 for noble metal, it is characterised in that：The heating cavity is equipped with
Vacuum meter for detecting vacuum degree in the seal chamber.
6. the melting heating equipment according to claim 4 for noble metal, it is characterised in that：The heating cavity is equipped with
Observation window；The heating cavity is equipped with the control for being opened and closed the heating dish and switchs；The heating cavity is equipped with described in detection
The cavity temperature sensor of temperature in crucible.
7. the melting heating equipment for noble metal according to claim 3, it is characterised in that：The seal chamber includes
Lower chamber, and it is covered on the upper cover above the lower chamber；The downside of the upper cover outer end is equipped with seal convexity；The cavity of resorption
The upper surface of body sidewall is equipped with and the matched seal groove of the seal convexity；At the fastening of the upper cover and lower chamber be equipped with
The upper cover closure sensor that controller is electrically connected.
8. the processing method of hard platinum, it is characterised in that：The hard platinum is formed using the component melting of following weight ratio：Platinum
95%；Copper 0.8-1.2%；Palladium 1.3-1.7%；Lead 1.8-2.2% and indium 0.4-0.6%.
9. processing method according to claim 8, it is characterised in that：When each melting processing, the total weight of each component is
300-500 grams, melting is heated in claim 1-7 any one of them melting heating equipments, heating time is 3 minutes, temperature
Degree is 1880 degree；It after heating melting, is made annealing treatment in melting heating equipment, the time is 1 minute, 1500 degree of temperature；Again will
Metal derby after annealing takes out from melting heating equipment, is placed in water cooling, until gold bullion becomes normal color, then takes out
Drying.
10. processing method according to claim 9, it is characterised in that：Melting is heated in the melting heating equipment
When, it completes to take out the step of air is re-filled with argon gas before being warming up to 1000 degree；After temperature reaches 1100 degree, heating dish is with every
Reciprocally swinging is primary within 4-10 seconds, and swing angle is 180-330 degree, reaches 1880 degree, heating dish is with every 2-4 seconds reciprocally swinging one
Secondary, swing angle is 30-120 degree；
Metal derby after cooling carries out six face punching presses with press device and beats in water, and metal derby is made to become square body.
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| CN201810378181.XA CN108384978B (en) | 2018-04-25 | 2018-04-25 | Smelting heating equipment for noble metal and processing method of hard platinum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378181.XA CN108384978B (en) | 2018-04-25 | 2018-04-25 | Smelting heating equipment for noble metal and processing method of hard platinum |
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| CN108384978B CN108384978B (en) | 2023-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609914A (en) * | 2019-02-27 | 2019-04-12 | 昆山国显光电有限公司 | A kind of crucible and its method for heating and controlling, evaporated device |
| CN110893371A (en) * | 2018-09-12 | 2020-03-20 | 台州鑫宇铜业股份有限公司 | Purification recovery plant of copper product |
| CN113883893A (en) * | 2021-11-09 | 2022-01-04 | 王长务 | Biomass crucible furnace and operation method thereof |
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| Publication number | Publication date |
|---|---|
| CN108384978B (en) | 2023-12-05 |
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