CN206185271U - Vacuum diffusion stove of brazing - Google Patents
Vacuum diffusion stove of brazing Download PDFInfo
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- CN206185271U CN206185271U CN201621243413.3U CN201621243413U CN206185271U CN 206185271 U CN206185271 U CN 206185271U CN 201621243413 U CN201621243413 U CN 201621243413U CN 206185271 U CN206185271 U CN 206185271U
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 38
- 238000005219 brazing Methods 0.000 title abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 89
- 230000006698 induction Effects 0.000 claims abstract description 31
- 238000005476 soldering Methods 0.000 claims description 44
- 230000005855 radiation Effects 0.000 claims description 26
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims description 13
- 239000011733 molybdenum Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000137 annealing Methods 0.000 abstract description 3
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 230000036760 body temperature Effects 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 229910052702 rhenium Inorganic materials 0.000 description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 globar Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- General Induction Heating (AREA)
Abstract
The utility model provides a vacuum diffusion stove of brazing belongs to the stove technical field that brazes. A vacuum diffusion stove of brazing, includes furnace body, vacuum pump, resistance electrode, induction coil, heating element, controller, power and insulating seal circle, inside and the vacuum pump connection of furnace body, the work piece is placed between the resistance electrode, induction coil centers on the work piece sets up, heating element sets up the inner wall of furnace body, heating element, resistance electrode and induction coil are connected with controller and power respectively in proper order, the furnace body seals through the insulating seal circle. Adopt the utility model discloses the stove of brazing adds thermal treatment, and the thermal conductivity is high, and the thermal diffusion is fast, can show to put forward the high pressure heater thermal velocity, improves hot conduction efficiency. Simultaneously, annealing / diffusion back, the performance index who is heated the work piece is higher.
Description
Technical field
The utility model belongs to soldering oven technical field, and in particular to a kind of diffusion in vacuum soldering oven.
Background technology
In method for welding, resistance brazing has that heating is rapid, production efficiency is high, heating is extremely concentrated, to hot shadow around
Small, process is simple is rung, the advantages of automating easily is realized；Induction brazing has that firing rate is fast, small to workpiece damage, joint mechanics
The advantages of excellent performance, welding of achievable complicated interface；And the major advantage of vacuum brazing is brazing quality high, can easy pricker
Weld those metals and alloy that soldering is difficult to other method.
In vacuum brazing, due in vacuum environment gas molecule seldom, workpiece temperature-rise period is mainly and relies on heating unit
The heat radiation of part, inside workpiece heat transfer and frock contact heat conductien realize, workpiece heat mode based on heat radiation, it is used plus
Thermal element mainly has molybdenum filament band, tungsten, nickel chromium triangle, ferrum-chromium-aluminum, globar, carborundum etc., but this method firing rate is slow, vacuum bar
Part does not have transmitting medium, intensification institute calorific requirement to only have by heat radiation realization, so operating efficiency is very low.
Chinese patent 03212485.6 discloses a kind of vacuum annealing furnace, 1400 DEG C of the vacuum furnace temperature of patent offer,
Vacuum 10-3Pa, with compact conformation, it is easy to operate with economize on electricity the features such as, but complex structure, firing rate are slow.Chinese patent
201220093108.6 disclose a kind of resistance sensing composite heating stove, by the flame-proof thermal insulation material of outer layer, stratie,
Heating vessel is constituted, wherein spiral helicine heating element heater ring heating vessel surrounding, when high frequency, intermediate frequency power supply is passed through, electricity
Resistance begins to warm up in itself, and intermediate frequency power supply is passed through resistance and forms induced-current, carries out sensing heating, the device efficiency of heating surface
Height, but heated perimeter is small, temperature is low, it is impossible to meet the heating needs of high temperature, big workpiece.
In order to further improve the efficiency of heating surface, occur in that both at home and abroad at present using heating sides such as workpiece preheating, high light radiations
The report of formula, but, workpiece pre-heating mean causes that workpiece is oxidizable, and high light radiation method it is small to workpiece heat scope, heating
Cost is too high.How to organically combine the advantage of resistance brazing, induction brazing, vacuum brazing, design a kind of rate of heat addition it is high, into
Diffusion in vacuum soldering heating means under the conditions of this low and high temperature are one of the problems in soldering field.
Utility model content
In view of this, technical problem to be solved in the utility model is to provide a kind of fast rate of heat addition, low cost, adds
Hot temperature diffusion in vacuum soldering oven high.
In order to solve the above technical problems, the technical scheme that the utility model is used is：
A kind of diffusion in vacuum soldering oven, including body of heater, vavuum pump, resistance electrode, induction coil, heating element heater, controller,
Power supply and insulated enclosure circle, the furnace interior are connected with vavuum pump, and the workpiece is placed between the resistance electrode, described
Around the workpiece setting, the heating element heater is arranged on the inwall of the body of heater, the heating element heater, resistance electricity to induction coil
Pole and induction coil are connected with controller and power supply respectively successively, and the body of heater is sealed by insulated enclosure circle.
Preferably, the resistance electrode is connected with low-tension supply, and the voltage of the low-tension supply is 5 ~ 20V.
Preferably, the resistance electrode is connected by annealed copper wire with the low-tension supply, and the annealed copper wire is arranged on closed
Bellows in, the bellows interior water flowing.
Preferably, the inside of the body of heater sets radiation shield, and it is 0.4 that the radiation shield is followed successively by 2 thickness degree from inside to outside
The molybdenum shield of millimeter, the heat resisting steel screen that 2 thickness degree are 0.7 millimeter and stainless steel screen that 1 thickness degree is 1.5 millimeters, interlamellar spacing is 2 ~ 4
Millimeter.
Preferably, infrared temperature sensor is set in the body of heater, and the infrared temperature sensor connects with the controller
Connect.
Compared with prior art, the beneficial effects of the utility model are as follows：
Resistance, sensing and vacuum brazing are dexterously organically incorporated into one by the utility model, fast with firing rate,
The efficiency of heating surface is high, the advantages of low cost and heating-up temperature high so that the accommodation of soldering oven is more extensive, and brazing quality is more
Height, brazing property is more excellent.Resistance electrode is arranged on the utility model the both sides of workpiece, while making workpiece be in the line of induction
In circle, and heating element heater is then arranged on the inwall of body of heater, so, various heating sides can be taken with diversification according to process requirements
Formula, according to the property of workpiece, makes multiple heating mode coordinate in order, is heated for workpiece more concentrate, and heats up more rationally, expands it
By heat rating, make its efficiency of heating surface higher.And, the mode of heating of diversification is caused between workpiece and heating element heater with more
Heat transfer form, improve workpiece firing rate.So multimode collaboration, can improve the efficiency of heating surface of workpiece, relatively single
The vacuum brazing of mode of heating, cost-effective 10 ~ 20%, shorten for 30 ~ 45% heat time.
The utility model soldering oven is first preheated workpiece in heating, workpiece is had a process for self adaptation,
Be conducive to improving brazing quality, then heating makes workpiece heat up, and completes soldering.Whole method for welding is by multiple heating mode
Coordinate in order, relative to the vacuum brazing of single heating mode, heat utilization efficiency is higher, and soldering is in hgher efficiency, better quality, greatly
Improve hysteresis quality of the workpiece temperature relative to furnace body temperature so that mode of heating more science.Furnace binding is changed in addition
Enter, heat-insulated and heat-insulating property is significantly improved, body of heater heats up faster, and temperature range is wider, can be in the range of 600 ~ 1800 DEG C
Work, the uniformity and stability of temperature is higher, and automatic control is stronger.Additionally, the mode of heating of diversification disclosure satisfy that big workpiece
Demand for heat, application field is more extensive.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1：A kind of structural representation of diffusion in vacuum soldering oven of the utility model；
Fig. 2：The structural representation of the utility model another kind diffusion in vacuum soldering oven；
Fig. 3：The structural representation of the utility model radiation shield；
Wherein, 1- bodies of heater, 2- heating element heaters, 3- resistance electrodes, 4- induction coils, 5- vavuum pumps, 6- controllers, 7- insulation
Sealing ring, 8- radiation shields, 9- infrared temperature sensors, 10- annealed copper wires, 11- bellowss, 12- workpiece.
Specific embodiment
In order to more fully understand the utility model, further fairly set out with reference to embodiment in of the present utility model
Hold, but protection content of the present utility model is not limited solely to the following examples.In the following description, a large amount of tools are given
The details of body is more thoroughly understood the utility model to provide.However, aobvious and easy to those skilled in the art
See, the utility model can be carried out without one or more of these details.
Refering to Fig. 1 ~ 3, the utility model provides a kind of diffusion in vacuum soldering oven, including body of heater 1, and heating is set in body of heater
Element 2, resistance electrode 3 and induction coil 4, furnace interior are connected with vavuum pump 5, and workpiece 12 is placed between resistance electrode, sense
Coil is answered around the workpiece setting, heating element heater is arranged on the inwall of the body of heater, heating element heater, resistance electrode and the line of induction
Circle is connected with controller 6 and power supply successively respectively, and the body of heater is sealed by insulated enclosure circle 7.
Wherein, heating element heater is high temperature molybdenum alloy in body of heater.
High temperature molybdenum alloy preferably comprises the component of following percentage by weight：Molybdenum 60 ~ 80%, tungsten 10 ~ 23%, niobium 5 ~ 11%, rhenium
1 ~ 6%, above-mentioned each component percentage by weight sum is 100%.It is highly preferred that the high temperature molybdenum alloy includes following percentage by weight
Component：Molybdenum 71%, tungsten 17%, niobium 8%, rhenium 4%, above-mentioned each component percentage by weight sum are 100%.
The utility model high temperature molybdenum alloy can work between 500 ~ 1800 DEG C of temperature.After testing, at this temperature,
The uniaxial tension test of high temperature molybdenum alloy is 1020 ~ 1350MPa, hardness（HV10）Be 230 ~ 245, yield strength be 1050 ~
1210MPa, elongation percentage is 16.3 ~ 24.5%, and testing result is shown in Table 1.
The high temperature molybdenum alloy of table 1 is constituted and performance
| Composition, performance | 1# | 2# | 3# | 4# | 5# |
| Molybdenum | 71 | 60 | 80 | 78 | 67 |
| Tungsten | 17 | 23 | 14 | 10 | 21 |
| Niobium | 8 | 11 | 5 | 10 | 7 |
| Rhenium | 4 | 6 | 1 | 2 | 5 |
| Uniaxial tension test/MPa | 1350 | 1062 | 1145 | 1230 | 1187 |
| Hardness/HV10 | 245 | 232 | 237 | 241 | 236 |
| Yield strength/MPa | 1210 | 1078 | 1113 | 1180 | 1135 |
| Elongation percentage/% | 24.5 | 18.6 | 20.5 | 22.3 | 17.8 |
Preferably, the spiral of heating element heater 2 is arranged on the inwall of the body of heater the utility model；
Body of heater is Double water-cooled body of heater, and workpiece is cooled down using water-cooling system.
Refering to Fig. 2 ~ 3, the inside of the body of heater sets radiation shield 8, and the radiation shield is followed successively by 2 thickness degree and is from inside to outside
0.4 millimeter of molybdenum shield 8-1, the heat resisting steel screen 8-2 that 2 thickness degree are 0.7 millimeter and the stainless steel screen 8- that 1 thickness degree is 1.5 millimeters
3, interlamellar spacing is 2 ~ 4 millimeters.The fixation of each interlayer and gap use and parting bead are riveted or welded on radiation shield.Radiation shield can subtract
Few stove body temperature makes temperature more concentrate to external radiation；And by the combination and optimization of material and spacing, can significantly increase
The heat-insulating property of body of heater, optimizes the use of material, cost-effective.
Refering to Fig. 2, infrared temperature sensor 9 can be set in body of heater, the infrared temperature sensor connects with the controller
Connect, so in brazing process, be capable of achieving automatically controlling for temperature so that the intensification control of workpiece is more reasonable.
The utility model additionally provides the polynary heating means of above-mentioned diffusion in vacuum soldering oven, using resistance heating, sensing
Heating and body of heater temperature control ternary mode of heating, the sensing heating are heated using induction coil, and the body of heater temperature control is used
Heating element heater is heated in body of heater.
Wherein, resistance heating is that resistance electrode is connected with low-tension supply, and the voltage of the low-tension supply is 5 ~ 20V, this
Sample and other mode of heatings are with the use of being more easily controlled.
Resistance electrode is preferably graphite material, and heat-resisting quantity is good, stable in properties.
Refering to Fig. 1 ~ 2, resistance electrode is connected by annealed copper wire 10 with the low-tension supply, and the annealed copper wire is arranged on closed
Bellows 11 in, the bellows interior water flowing.The excellent sealing of bellows was so both realized, while causing bellows again
Inside and outside pressure is easy to balance, and safety coefficient is higher.
Herein, the water is distilled water, and the active gas such as not oxygen-containing.
The polynary heating means of the utility model diffusion in vacuum soldering oven, comprise the following steps：
1）Workpiece is preheated using resistance heating, after preheating is finished, use feeling answers coil heats to be heated up；
Or, workpiece is preheated using intermediate frequency or radio-frequency induction coil, after preheating is finished, heated using resistance electrode
Heated up；
2）While the intensification, it is incubated using heating element heater in body of heater.
Specifically, a kind of polynary heating means of diffusion in vacuum soldering oven of the utility model, comprise the following steps：
Step S1：By workpiece setting between resistance electrode, and in induction coil；Vavuum pump is connected with body of heater,
The body of heater is vacuumized using vavuum pump, after the body of heater reaches the vacuum of requirement, furnace body temperature is set as work
0.85 ~ 0.90 times of temperature, begins to warm up；
Step S2：Workpiece is preheated using resistance electrode heat first, after preheating is finished, the electricity of resistance electrode is broken
Source, use feeling answers coil heats to be heated up；
Or, workpiece is preheated using induction coil first, after preheating is finished, the power supply of induction coil is broken, then make
Heated with resistance electrode and heated up；
It is incubated using heating element heater in stove while intensification, so as to realize that resistance, sensing, the polynary of body of heater temperature control add
Hot mode.
By heating means of the present utility model so that workpiece can be preheated in advance, it is unlikely to too urgent, the influence soldering that heats up
Quality；Preheating procedure activates workpiece, workpiece is in the state for being more beneficial for liter warm working；Then two kinds of mode of heatings are used
Parallel, not only cause that the firing rate of workpiece is improved, the temperature of workpiece substantially weakens relative to the hysteresis quality of furnace body temperature,
Also so that the heat-insulating property of body of heater is optimized, the utilization rate of heat is higher, and the processing environment stabilization of workpiece, quality is easier
To guarantee.
Method for welding of the present utility model, using vacuum heating apparatus, carries out soldering under vacuum conditions, improves solderer
While making efficiency, some artificial, uncontrollable factors are converted into the stable state controlled by equipment, the brazing product of acquisition
Intensity is high, flat appearance, brazing layer thickness and thermal stress distribution are uniform, and soldering environment is clean, dustless, anaerobic, reduces product
The probability of oxide and impurity is produced in surface and brazing layer；Product quality stabilization, is adapted to batch production.
Embodiment 1
Refering to Fig. 1 ~ 3, a kind of diffusion in vacuum soldering oven, including body of heater 1, heating element heater 2, resistance electrode 3 are set in body of heater
With induction coil 4, furnace interior is connected with vavuum pump 5, and workpiece 13 is placed between resistance electrode, and induction coil is around the work
Part is set, and heating element heater is arranged on the inwall of the body of heater, heating element heater, resistance electrode and induction coil respectively successively with control
Device 6 and power supply are connected, and the body of heater is sealed by insulated enclosure circle 7.Wherein, heating element heater is High-Temperature Mo conjunction in body of heater
Gold, high temperature molybdenum alloy is the 1# of table 1.Heating element heater spiral is arranged on the inwall of the body of heater.Resistance electrode passes through annealed copper wire
10 are connected with the low-tension supply, and the annealed copper wire is arranged in closed bellows 11, the bellows interior water flowing 12.Stove
The inside of body sets radiation shield 8, and the radiation shield is followed successively by the molybdenum shield 8-1 that 2 thickness degree are 0.4 millimeter, 2 thickness degree from inside to outside
It is 0.7 millimeter of heat resisting steel screen 8-2 and stainless steel screen 8-3 that 1 thickness degree is 1.5 millimeters, interlamellar spacing is 3 millimeters.
The polynary heating means of the diffusion in vacuum soldering oven described by the embodiment, comprise the following steps：
Step S1：By workpiece setting between resistance electrode, and in induction coil；Vavuum pump is connected with body of heater,
The body of heater is vacuumized using vavuum pump, after the body of heater reaches the vacuum of requirement, furnace body temperature is set as work
0.85 times of temperature, begins to warm up；
Step S2：Workpiece is preheated using resistance electrode heat first, after preheating is finished, the electricity of resistance electrode is broken
Source, heat temperature raising is carried out using induction coil, is incubated using heating element heater in stove while intensification；So as to realize resistance,
Sensing, the polynary mode of heating of body of heater temperature control.
Embodiment 2
Refering to Fig. 1 ~ 3, the structure of the diffusion in vacuum soldering oven described by the present embodiment, as different from Example 1：Body of heater
Interior heating element heater is high temperature molybdenum alloy, and high temperature molybdenum alloy is the 2# of table 1.
The inside of body of heater sets radiation shield 8, and the radiation shield is followed successively by the molybdenum shield that 2 thickness degree are 0.4 millimeter from inside to outside
8-1, the heat resisting steel screen 8-2 that 2 thickness degree are 0.7 millimeter and the stainless steel screen 8-3 that 1 thickness degree is 1.5 millimeters, interlamellar spacing is 2.5
Millimeter.
The polynary heating means of the present embodiment diffusion in vacuum soldering oven refer to embodiment 1.
Embodiment 3
Refering to Fig. 1 ~ 3, the structure of the diffusion in vacuum soldering oven described by the present embodiment, as different from Example 1：Body of heater
Interior heating element heater is high temperature molybdenum alloy, and high temperature molybdenum alloy is the 3# of table 1.
The inside of body of heater sets radiation shield 8, and the radiation shield is followed successively by the molybdenum shield that 2 thickness degree are 0.4 millimeter from inside to outside
8-1, the heat resisting steel screen 8-2 that 2 thickness degree are 0.7 millimeter and the stainless steel screen 8-3 that 1 thickness degree is 1.5 millimeters, interlamellar spacing are 2 millis
Rice.
The polynary heating means of the diffusion in vacuum soldering oven described by the embodiment, comprise the following steps：
Step S1：By workpiece setting between resistance electrode, and in induction coil；Vavuum pump is connected with body of heater,
The body of heater is vacuumized using vavuum pump, after the body of heater reaches the vacuum of requirement, furnace body temperature is set as work
0.90 times of temperature, begins to warm up；
Step S2：Workpiece is preheated using induction coil first, after preheating is finished, the power supply of induction coil is broken, then
Heated using resistance electrode and heated up；It is incubated using heating element heater in stove while intensification；So as to realize resistance, sense
Should, the polynary mode of heating of body of heater temperature control.
Embodiment 4
Refering to Fig. 1 ~ 3, the structure of the diffusion in vacuum soldering oven described by the present embodiment, as different from Example 1：Body of heater
Interior heating element heater is high temperature molybdenum alloy, and high temperature molybdenum alloy is the 4# of table 1.
The inside of body of heater sets radiation shield 8, and the radiation shield is followed successively by the molybdenum shield that 2 thickness degree are 0.4 millimeter from inside to outside
8-1, the heat resisting steel screen 8-2 that 2 thickness degree are 0.7 millimeter and the stainless steel screen 8-3 that 1 thickness degree is 1.5 millimeters, interlamellar spacing are 4 millis
Rice.
The polynary heating means of the present embodiment diffusion in vacuum soldering oven refer to embodiment 3.
Comparative example 1
Diffusion in vacuum soldering oven described by the comparative example, it is as different from Example 1：Heating unit is only set in body of heater
Part 2, heating element heater 2 is high temperature molybdenum alloy, and high temperature molybdenum alloy is the 1# of table 1；
Remaining structure is repeated no more with embodiment 1.
The heating means of the diffusion in vacuum soldering oven described by the embodiment, comprise the following steps：
By workpiece setting on soldering station, vavuum pump is connected with body of heater, is vacuumized the body of heater using vavuum pump,
After the body of heater reaches the vacuum of requirement, furnace body temperature is set as 0.90 times of operating temperature；Use heating element heater in stove
Heat temperature raising is carried out, soldering is completed.
Comparative example 2
Diffusion in vacuum soldering oven described by the comparative example, it is as different from Example 1：Heating unit is only set in body of heater
Part 2, heating element heater 2 is pure molybdenum；
Radiation shield 8 is set in body of heater, and the radiation shield is followed successively by molybdenum shield 8-1,2 that 2 thickness degree are 0.5 millimeter from inside to outside
Thickness degree is 0.5 millimeter of heat resisting steel screen 8-2 and stainless steel screen 8-3 that 1 thickness degree is 2 millimeters, and interlamellar spacing is 7 millimeters；
Remaining structure is repeated no more with embodiment 1.
The heating means of the diffusion in vacuum soldering oven described by the embodiment, with comparative example 1.
Comparative example 3
Diffusion in vacuum soldering oven described by the comparative example, it is as different from Example 1：Resistance electricity is only set in body of heater
Pole 3 and induction coil 4；
Remaining is repeated no more with embodiment 1.
The heating means of the diffusion in vacuum soldering oven described by the embodiment, comprise the following steps：
By workpiece setting on soldering station, vavuum pump is connected with body of heater, is vacuumized the body of heater using vavuum pump,
After the body of heater reaches the vacuum of requirement, furnace body temperature is set as 0.90 times of operating temperature；First use induction coil pair
Workpiece is preheated, and after preheating is finished, breaks the power supply of induction coil, is reused resistance electrode heating and is heated up, and completes pricker
Weldering.
Effect assessment
The utility model is using the heating means of embodiment 1 ~ 4 and comparative example 1 ~ 2 to silver solder, copper solder, nickel solder, aluminium
Solder, magnesium solder, tin alloy, titanium alloy and manganese alloy are heat-treated, and the thermal conductivity to each heat treatment process and thermal diffusion
Rate is counted, and the results are shown in Table 1 and table 2.
The data of the row of the utility model one are the average data of embodiment 1 ~ 4 in table 1 ~ 2.
The thermal conductivity of table 1（W/m.K）Statistics
The thermal diffusivity of table 2（mm2/s）Statistics
Be can see by table 1 ~ 2, heated using the utility model soldering oven, thermal conductivity is high, thermal diffusion is fast, energy
Firing rate is enough significantly improved, heat conduction efficiency is improved.Meanwhile, after annealing/diffusion, the performance indications of workpiece are higher.Compared to
Comparative example 1 ~ 3, polynary mode of heating effect is significant of the present utility model.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, this area
Other modifications or equivalent that those of ordinary skill is made to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, all should cover in the middle of right of the present utility model.
Claims (5)
1. a kind of diffusion in vacuum soldering oven, it is characterised in that：Including body of heater, vavuum pump, resistance electrode, induction coil, heating unit
Part, controller, power supply and insulated enclosure circle, the furnace interior are connected with vavuum pump, workpiece be placed on the resistance electrode it
Between, around the workpiece setting, the heating element heater is arranged on the inwall of the body of heater, the heating unit to the induction coil
Part, resistance electrode and induction coil are connected with controller and power supply respectively successively, and the body of heater is carried out close by insulated enclosure circle
Envelope.
2. diffusion in vacuum soldering oven as claimed in claim 1, it is characterised in that：The resistance electrode is connected with low-tension supply,
The voltage of the low-tension supply is 5 ~ 20V.
3. diffusion in vacuum soldering oven as claimed in claim 2, it is characterised in that：The resistance electrode by annealed copper wire with it is described
Low-tension supply is connected, and the annealed copper wire is arranged in closed bellows, the bellows interior water flowing.
4. diffusion in vacuum soldering oven as claimed in claim 1, it is characterised in that：The inside of the body of heater sets radiation shield, institute
State radiation shield and be followed successively by the molybdenum shield, the heat resisting steel screen that 2 thickness degree are 0.7 millimeter and 1 layer that 2 thickness degree are 0.4 millimeter from inside to outside
Thickness is 1.5 millimeters of stainless steel screen, and interlamellar spacing is 2 ~ 4 millimeters.
5. diffusion in vacuum soldering oven as claimed in claim 1, it is characterised in that：Infrared temperature sensing is set in the body of heater
Device, the infrared temperature sensor is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243413.3U CN206185271U (en) | 2016-11-21 | 2016-11-21 | Vacuum diffusion stove of brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243413.3U CN206185271U (en) | 2016-11-21 | 2016-11-21 | Vacuum diffusion stove of brazing |
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| CN206185271U true CN206185271U (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621243413.3U Expired - Fee Related CN206185271U (en) | 2016-11-21 | 2016-11-21 | Vacuum diffusion stove of brazing |
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| Country | Link |
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| CN (1) | CN206185271U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326389A (en) * | 2018-02-09 | 2018-07-27 | 上海微行炉业有限公司 | Vacuum brazing furnace |
| CN108637030A (en) * | 2018-05-08 | 2018-10-12 | 安徽科技学院 | The liquid extrusion molding device of brittleness solder band |
| CN112620845A (en) * | 2020-11-18 | 2021-04-09 | 常州大谷液压器材有限公司 | SAE flange type joint vacuum brazing process and equipment |
-
2016
- 2016-11-21 CN CN201621243413.3U patent/CN206185271U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326389A (en) * | 2018-02-09 | 2018-07-27 | 上海微行炉业有限公司 | Vacuum brazing furnace |
| CN108326389B (en) * | 2018-02-09 | 2024-06-07 | 江苏微艾诺智能装备集团有限公司 | Vacuum brazing furnace |
| CN108637030A (en) * | 2018-05-08 | 2018-10-12 | 安徽科技学院 | The liquid extrusion molding device of brittleness solder band |
| CN108637030B (en) * | 2018-05-08 | 2024-03-12 | 安徽科技学院 | Liquid extrusion forming device for brittle solder strip |
| CN112620845A (en) * | 2020-11-18 | 2021-04-09 | 常州大谷液压器材有限公司 | SAE flange type joint vacuum brazing process and equipment |
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