CN209326323U - A kind of continuous atmosphere sintering furnace of high-speed rail brake block - Google Patents
A kind of continuous atmosphere sintering furnace of high-speed rail brake block Download PDFInfo
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- CN209326323U CN209326323U CN201821878282.5U CN201821878282U CN209326323U CN 209326323 U CN209326323 U CN 209326323U CN 201821878282 U CN201821878282 U CN 201821878282U CN 209326323 U CN209326323 U CN 209326323U
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Abstract
The utility model provides a kind of continuous atmosphere sintering furnace of high-speed rail brake block, including furnace body, furnace interior is provided through transfer passage, feed zone is successively arranged along conveying direction in the transfer passage, disbonded ragion, sintering zone, cooling zone, discharge zone, totally five warm area units, disbonded ragion includes degumming heating zone, degumming flat-temperature zone, sintering zone includes sintering heating zone, it is sintered flat-temperature zone, the degumming heating zone, degumming flat-temperature zone, it is sintered heating zone, it is sintered in flat-temperature zone and electrical induction coil is set, it is heated by electrical induction coil to brake block is sintered.Multistage electric induction load coil is arranged in furnace body and carries out heating or constant temperature processing for the utility model, since induction heating belongs to non-contacting heating method, the only heat production inside heated object, therefore continuous, quick heating can not only be realized, the temperature also avoided between adjacent warm area influences each other, and improves temperature control accuracy and sintering quality.
Description
Technical field
The utility model relates to a kind of continuous atmosphere sintering furnaces of high-speed rail brake block, belong to bullet train friction block manufacturing technology
Field.
Background technique
Currently, copper based powder metallurgy material friction block mostly uses well formula sintering furnace to be sintered, sample passes through cold moudling
It is placed in furnace afterwards, mechanical pressurization is carried out again to sample during the sintering process.Its deficiency is: by the limitation of single furnace piece installing amount,
Production efficiency is low；Exist when being sintered multiple groups sample and repeat heating temperature-fall period, heat utilization rate is low；Different batches of product quality is steady
Qualitative difference；Mechanical pressurization mode is difficult to ensure the uniform force of sample each section, and sample interior Density inhomogeneity is easy to produce office
Portion's defect.
Chinese utility model patent CN103394691 discloses a kind of continuous degreasing, sintering, hot forging or/and process for quenching
And its device, the all-in-one oven at least have sequentially connected feed zone, degreasing section, sintering stage, are located at the all-in-one oven discharge end
Cooling section, the prior art can realize the continuous production of friction block.
Sintering stage in the technology is the constant section of a temperature, and the sintering temperature provided in embodiment is 1150
DEG C namely product 1150 DEG C of temperature is just directly born when entering sintering stage from degreasing section, heating rate is too fast, is easy to cause sample
Product expand the defects of cracking, warpage, deformation, influence dimensional accuracy, are not able to satisfy powder metallurgy friction block sintering process
It is required that.
Patent CN206281334 has made improvement to this, is arranged along conveying direction in the intracorporal transfer passage of furnace
Several warm area units, the independent temperature control device of setting in each warm area unit.Preset temperature may be implemented by this device
It is risen or fallen along conveying direction in step or constant trend, to realize the heating, cooling of sample and the burning of constant temperature
Knot technique.
But the temperature control system existing defects of the warm area unit in the technology, the temperature control device provided include heater strip and
The thermocouple being electrically connected with heater strip.Heater strip belongs to convection current and radiant heating to the heating of sample, heats the required time
The temperature of longer and adjacent warm area unit can affect one another.The existing heating method determines the temperature in its production process
Degree is very difficult to accurately control.Under normal conditions, need to be accurately controlled in ± 5 DEG C of predetermined temperature when being sintered brake block, and it is right
For the heat radiations heating method such as heater strip/thermocouple, it is virtually impossible to accomplish, temperature condition low so as to cause production efficiency is not
The problems such as stablizing.
Utility model content
To improve friction block production efficiency, energy consumption and cost are reduced, the utility model provides a kind of high-speed rail brake
The continuous atmosphere sintering furnace of piece.
The technical solution of the utility model is as follows:
A kind of continuous atmosphere sintering furnace of high-speed rail brake block, including furnace body, furnace interior is provided through transfer passage, described
It is successively arranged feed zone, disbonded ragion, sintering zone, cooling zone, discharge zone along conveying direction in transfer passage, totally five warm area lists
Member, disbonded ragion include degumming heating zone, degumming flat-temperature zone, and sintering zone includes sintering heating zone, sintering flat-temperature zone, the degumming liter
Electrical induction coil is arranged in flat-temperature zone in warm area, degumming flat-temperature zone, sintering heating zone, sintering, by electrical induction coil
It is heated to brake block is sintered.
Further, the temperature of the degumming heating zone is increased along its conveying direction, the temperature edge of the degumming flat-temperature zone
Its conveying direction is constant.
Further, the temperature of the sintering heating zone is increased along its conveying direction, the temperature of the sintering flat-temperature zone
Degree is constant along its conveying direction, and the temperature of the cooling zone is reduced along its conveying direction.
Further, the electrical induction coil is connected or in parallel or series-parallel connection by multiple subcoils；It is preferred that
Ground is separated between adjacent wires with heat-barrier material in electrical induction coil；Preferably, multistage cooling water is arranged in the cooling zone
Circulator.
Further, the continuous atmosphere sintering furnace of high-speed rail brake block further includes conveyer belt, and the conveyer belt is along described defeated
It send channel mobile, brake block conveying will be sintered and successively pass through feed zone, disbonded ragion, sintering zone, cooling zone and discharge zone, it is described
Conveyer belt is made of high-temperature insulation material.
Further, the conveyer belt is made of refractory ceramics.
Since the utility model carries out heat temperature raising and sintering, inductance to brake block is sintered using electrical induction coil
The principle of heating for answering heating coil is the electromagnetic induction phenomenon based on faraday's discovery, i.e. the electric current of alternation generates sense in the conductor
Answer electric current, so as to cause conductor (being sintered brake block) fever, when be sintered brake sheet resistance it is bigger when, be sintered brake block hair
Heat is faster, and heating is rapider.
It is to be sintered brake block to generate heat self rather than radiate fever due to using electrical induction coil heats,
Compared with resistance wire/thermocouple heating method, what the temperature that the utility model can be reduced between different warm areas interfered with each other
Phenomenon is conducive to the accurate control of temperature, to guarantee the sintering quality for being sintered brake block.In order to further prevent not equality of temperature
Temperature caused by heat radiation between area interferes with each other controls inaccurate problem, the utility model further use non-conductor,
The material of high temperature resistant degree conductivity of heat difference makes conveyer belt, avoids electrical induction coil while heating is sintered brake block,
Conveyer belt (if it is conductor) also generates heat, and the fever of conveyer belt leads to temperature " interfering with each other " between different warm areas, and more excellent
Poor material of conducting heat is selected, the temperature for being sintered brake block is also avoided to dissipate because of heat transfer.
Further, the continuous atmosphere sintering furnace of high-speed rail brake block further includes conveyer belt deviation correcting device, driving device, leads
To wheel, electrical control gear and atmosphere control device；The driving device is placed in the lower section of feed zone, and the directive wheel is placed in out
Expect the lower section of area end, the conveyer belt deviation correcting device is set to the conveyer belt of the inlet of feed zone and the exit of discharge zone
Two sides；The atmosphere control device is set to the two sides of feed zone.
Further, the continuous atmosphere sintering furnace of high-speed rail brake block further includes a temperature control system, the temperature control system
Comprising temperature monitoring device, data processing equipment and fading unit, the fading unit, temperature monitoring
Device is connect with the data processing equipment signal, and the temperature monitoring device is sintered disc surface temperature for monitoring,
The monitoring result is compared by the data processing equipment with temperature range value is prestored, and controls input work according to comparison result
The real-time power that rate regulating device is inputted to the electrical induction coil.Hereby it is achieved that the closed loop intelligence of each warm area temperature
Control, the accurate control of each warm area temperature of strong guarantee provide efficient guarantee to be sintered out good brake block.Temperature monitoring dress
Set the infrared thermometer of preferably contactless temperature-measuring.
Further, the entrance of the furnace body is provided with access hatch, and the outlet of furnace body is provided with out port strobe, entrance lock
The folding period of door and out port strobe is consistent.
Further, the continuous atmosphere sintering furnace of high-speed rail brake block further includes image identification system, described image identification
System includes image acquiring device and image memory device on the furnace body, described image acquisition device to schedule between
It is sintered brake block shooting image in the furnace body transfer passage, and the image of shooting is transmitted to described image and there is dress
It is stored in setting.
Since the utility model is using electrical induction coil heats, the temperature of gas will not mistake in each warm area
The temperature of height, furnace body inside and outside wall will not be especially high, thus the image acquiring devices (or temperature monitoring device) such as camera are arranged
It is easier to setting.Such as it a high-definition glass form, the image that camera is installed on the form can be obtained on furnace body
Device, and interval shooting is sintered the image of brake block according to set time, for staff transfer image carry out it is relevant
Observation and research, do not need uninterruptedly to observe for 24 hours.
Further, described image identifying system further includes image processing apparatus and alarm, described image acquisition device
Be spaced to schedule to be sintered in the furnace body transfer passage brake block shooting image, and be sent to described image processing
Device compares the image of shooting by described image processing unit and the standard picture prestored carries out color difference and compares, as color difference is more than
Pre-stored threshold values, then described image processing unit controls the alarm and issues alarm.
During being sintered, color can constantly change brake block, can obtain the appearance of taupe under normal circumstances,
It will appear the appearance of grey black under abnormal conditions.For this purpose, being compared by setting image acquiring device and warning device and color difference
Image processing apparatus etc., can contribute to that staff is helped to quickly understand the product situation being sintered in furnace body.
The utility model additionally provides the high-speed rail brake block sintering method realized according to above-mentioned continuous atmosphere sintering furnace, described
Method are as follows: brake-pad friction block sample is placed on the transmission conveyer belt of continuous atmosphere sintering furnace, drive of the sample in driving device
Successively pass through feed zone, disbonded ragion, sintering zone, cooling zone, discharge zone under dynamic, realizes sintering process, sample tapping temperature < 70
℃。
Further, the operating rate of continuous fritting furnace conveyer belt is 20-80mm/min, degumming flat-temperature zone in the method
Temperature is set as 300-550 DEG C, and sintering flat-temperature zone temperature is set as 780-1050 DEG C, and degumming soaking time is 30-120min, and sintering is protected
The warm time is 5-130min.
The above-mentioned technical proposal of the utility model has the beneficial effect that:
In above scheme, the continuous atmosphere sintering furnace of high-speed rail brake block provided by the utility model, compared with prior art, tool
It has the advantage that
(1) multiple working procedures such as the degumming, sintering, cooling of powder metallurgy friction block, continuity are realized on the same device
Operation improves production efficiency, reduces energy consumption；Labor intensity is reduced, process flow is shortened, reduces human cost；Improve production
The quality stability of product；Reduce the type and quantity of equipment, reduce industrial land, reduce equipment operation and maintenance at
This.
(2) the utility model be arranged in furnace body multistage electric induction load coil carry out heating or constant temperature processing, electricity
Induction heating is the heating controller produced based on electromagnetic inductive heating principle.Electromagnetic induction heating is found from faraday
Electromagnetic induction phenomenon, i.e. the electric current of alternation generates induced current in the conductor, so as to cause conductor temp.-elevating.Due to induction heating
Belong to non-contacting heating method, the only heat production in product, therefore can not only realize continuous, quick heating, it is thus also avoided that
Temperature between adjacent warm area influences (heat radiation mutually string area), improves the reliability of production efficiency and thermal regulation.
The utility model further changes the prior art that traditional foraminous conveyer is usually metal mesh belt, by conveyer belt be set as non-conductor,
It does not conduct heat and is made with material resistant to high temperature, further prevent different warm area temperature from interfering with each other, be sintered brake block bottom
The non-uniform problems of temperature such as face temperature is too low, so that the accurate control of the area sintering furnace Nei Ge temperature is realized, to produce high quality
Brake block strong production guarantee is provided.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the 1 continuous atmosphere sintering furnace of high-speed rail brake block of embodiment.
Fig. 2 is the arrangement schematic diagram of heating coil in embodiment 2.
Fig. 3 is the structural schematic diagram of subcoil in embodiment 2.
[main element symbol description]
1. furnace body, 2. transfer passages, 3. racks, 4. conveyer belts, 5. driving devices, 6. feed zones, 7. disbonded ragions, 8. sintering
Area, 9. cooling zones, 10. discharge zones, 11. directive wheels, 12. atmosphere control devices, 13. access hatch, 14. go out port strobe, 15. temperature
Device is controlled, 16. heating coils, 17. subcoils, 18. are sintered part, and 701. degumming heating zones, 702. degumming flat-temperature zones, 801. burn
Tie heating zone, 802. sintering flat-temperature zones.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
Embodiment 1
It is logical through conveying is equipped with inside furnace body 1 as shown in Figure 1, the continuous atmosphere sintering furnace of high-speed rail brake block, including furnace body 1
Road 2, the installation of furnace body 1 is again in rack 3.
Rack 3 is equipped with conveyer belt 4 and drives the driving device 5 of conveyer belt 4, is provided with several that in transfer passage 2
The warm area unit of this connection is provided with the temperature control device 1 for being independently arranged temperature in each warm area unit, and temperature control device 15 is for controlling
Make the temperature of the warm area unit corresponding to it；Several warm area units being connected to each other along its conveying direction be followed successively by feed zone 6,
Disbonded ragion 7, sintering zone 8 and cooling zone 9, discharge zone 10；It also include subelement in some warm area units, disbonded ragion 7 includes degumming
Heating zone 701, degumming flat-temperature zone 702, sintering zone 8 include sintering heating zone 801, sintering flat-temperature zone 802.
In the present embodiment, the temperature of degumming heating zone 701 is increased along its conveying direction, the temperature of degumming flat-temperature zone 702
It is constant along its conveying direction.
Likewise, the temperature of sintering heating zone 801 is increased along its conveying direction, the temperature for being sintered flat-temperature zone 802 is defeated along its
Send direction constant
Multistage inductance is arranged in flat-temperature zone 802 in degumming heating zone 701, degumming flat-temperature zone 702, sintering heating zone 801, sintering
Heating coil 16 is answered, electrical induction coil 16 is connected by multiple subcoils or in parallel or series-parallel connection；Electrical induction
It is separated in coil 16 between adjacent wires with heat-barrier material, prevents in coil caused by heating effect of current mutual shadow between conducting wire
It rings；Multistage cooling water circulating device is arranged in cooling zone.
Driving device 5 is placed in the lower section of the feed zone 6, and directive wheel 11 is placed under the end of the discharge zone 10
Side, conveyer belt deviation correcting device (not shown) are respectively arranged at the defeated of the inlet of feed zone 6 and the exit of discharge zone 10
Send the two sides of band 4.Driving device 5 can adjust according to demand the speed of service of conveyer belt 4, to control the heating and heat preservation of sample
Duration.
Wherein conveyer belt 4 is made of isolation material resistant to high temperature；Preferably, the conveyer belt uses refractory ceramics system
At.When preventing electrical induction coil 16 from working, heat effect is generated to conveyer belt 4 and different warm area temperature is caused to interfere with each other
The problem of.General isolation material has the characteristics that conductivity of heat is poor, and the worse conveyer belt 4 of conductivity of heat connects to brake block bottom is sintered
The influence of contacting surface temperature is also less, and helping, which makes to be sintered brake block internal temperature, keeps uniformity.
Atmosphere control device 12 is placed in the two sides of feed zone 6 in furnace body 1, and atmosphere control device 12 is for controlling transfer passage
Atmosphere in 2, electrical control gear (not shown) are used to control the electrical operation of entire sintering furnace.
The entrance of furnace body 1 is provided with access hatch 13, and the outlet of furnace body 1 is provided with out port strobe 14,13 He of access hatch
The default folding period of port strobe 14, the folding period of access hatch 13 and out port strobe 14 are consistent out.
The continuous atmosphere sintering furnace provided through this embodiment, may be implemented following effect:
The serialization sintering for realizing powder metallurgy friction block, improves production efficiency；It solves in multiple batches of sintering process repeatedly
Thermal energy caused by heating cooling wastes, and improves energy utilization rate；The consuming for solving multiple shove charge, unloading labour during furnace, drop
Low human cost；The consistency for guaranteeing different batches of product working condition, improves product quality stability.
Embodiment 2
As shown in Figure 2 and Figure 3, degumming heating zone 701, degumming flat-temperature zone 702, sintering heating zone 801, sintering flat-temperature zone 802
Interior setting multistage electrical induction coil 16, electrical induction coil 16 is connected by multiple subcoils 17 or parallel connection or series-parallel
It is formed by connecting.
The present embodiment provides specific heating method, the heating method to product is intermediate frequency (or high frequency) induction heating,
Principle is that the inside for the conductor material being heated is made to generate electric current using the method for electromagnetic induction, is reached by these energy being vortexed
To heating purpose.
Feature is: 1. the heating method does not require external heat source, but using by heated work pieces itself as heat source；2. this
A method does not require workpiece to contact with the energy i.e. induction coil yet；3. coil can be fabricated to not according to heating target difference
Same shape；4. different heat penetrations can be selected according to frequency, accurate part is obtained according to coil Coupling Design and is added
Heat and very high power density.
When using this method, medium is only capable of conducting sub-fraction heat by way of convection current or radiation, if by product
It is placed in dedicated heat-insulated load bearing component, such as ceramic boat, fire resisting boat, can further weaken heat conduction.It specifically includes:
Product is placed in fire resisting boat successively by feed zone, disbonded ragion, sintering zone, cooling zone, discharge zone, realizes sintering
Process.
In sintering heating zone, multistage induction coil is improved step by step by conveying direction frequency, and product passes through transmission conveyer belt warp
It crosses the region and realizes stepped heating.
Embodiment 3
The present embodiment on the basis of embodiment 1, provides the sintering method of high-speed rail brake block.
Specific operating method are as follows: brake-pad friction block sample is placed on the transmission conveyer belt 4 of continuous atmosphere sintering furnace,
Friction block sample is under the driving of driving device 5 successively by feed zone 6, disbonded ragion 7, sintering zone 8 and cooling zone 9, discharge zone
10, realize sintering process, 70 DEG C of sample tapping temperature <.
The design parameter of sintering process controls are as follows: the operating rate for adjusting continuous fritting furnace conveyer belt 4 is 20-80mm/
Min, 702 temperature of degumming flat-temperature zone are set as 300-550 DEG C, and sintering 802 temperature of flat-temperature zone is set as 780-1050 DEG C, corresponds
Degumming soaking time be 30-120min, the sintered heat insulating time be 5-130min.
Embodiment 4
The present embodiment 4 be on the basis of embodiment 1, make the degumming heating zone, degumming flat-temperature zone, sintering heating zone,
One temperature control systems of connection such as setting electrical induction coil 16, the temperature control system in flat-temperature zone is sintered to fill comprising temperature monitoring
It sets, data processing equipment and fading unit, the fading unit, temperature monitoring device and the data
The connection of processing unit signal, the temperature monitoring device are sintered disc surface temperature for monitoring, the data processing dress
It sets and is compared the monitoring result with temperature range value is prestored, and fading unit is controlled to institute according to comparison result
State the real-time power of electrical induction coil input.Preferably, temperature monitoring device is infrared thermometer.
Hereby it is achieved that the closed loop intelligent control of each warm area temperature, the accurate control of each warm area temperature of strong guarantee, to burn
It bears good brake block and provides and efficiently guarantee.Alternating current in electrical induction coil 16 is input to by closed-loop control adjusting
Power, the temperature that can make to be sintered brake block realizes that temperature adjusts fast and accurately.
Embodiment 5
The present embodiment 5 is that image identification system, described image is further arranged on the basis of embodiment 1 or embodiment 4
Identifying system includes image acquiring device, the image processing apparatus outside furnace body, image memory device on furnace body
And alarm.
Wherein, image acquiring device can be high definition (high magnification numbe) camera, at set time intervals to furnace
It is sintered brake block in body transfer passage and carries out shooting image, and the image of shooting is transmitted to image deposits and deposit in a device
Storage is got up, and person for deliberation, which browses, to be checked.Meanwhile image processing apparatus can also transfer the image of these storages, by itself and research
The standard picture that personnel or staff prestore is compared, and such as comparing both discoveries color difference is more than pre-stored threshold values range, then controls
Alarm processed issues warning note and occurs bad sintered products in furnace body to prompt staff.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of continuous atmosphere sintering furnace of high-speed rail brake block, including furnace body, furnace interior are provided through transfer passage, feature
It is, is successively arranged feed zone, disbonded ragion, sintering zone, cooling zone, discharge zone along conveying direction in the transfer passage, totally five
A warm area unit, disbonded ragion include degumming heating zone, degumming flat-temperature zone, and sintering zone includes sintering heating zone, sintering flat-temperature zone, institute
It states degumming heating zone, degumming flat-temperature zone, sintering heating zone, be sintered setting electrical induction coil in flat-temperature zone, by electric induction
Heating coil is heated to brake block is sintered.
2. the continuous atmosphere sintering furnace of high-speed rail brake block as described in claim 1, which is characterized in that the temperature of the degumming heating zone
Degree is increased along its conveying direction, and the temperature of the degumming flat-temperature zone is constant along its conveying direction.
3. the continuous atmosphere sintering furnace of high-speed rail brake block as described in claim 1, which is characterized in that the temperature of the sintering heating zone
Degree is increased along its conveying direction, and the temperature of the sintering flat-temperature zone is constant along its conveying direction, and the temperature of the cooling zone is along it
Conveying direction reduces.
4. the continuous atmosphere sintering furnace of high-speed rail brake block as described in any one of claims 1 to 3, which is characterized in that the inductance
Heating coil is answered to be connected by multiple subcoils or in parallel or series-parallel connection；In electrical induction coil between adjacent wires with
Heat-barrier material separates；Multistage cooling water circulating device is arranged in the cooling zone.
5. the continuous atmosphere sintering furnace of high-speed rail brake block as claimed in claim 4, which is characterized in that the high-speed rail brake block is continuous
Atmosphere sintering furnace further includes conveyer belt, and the conveyer belt is moved along the transfer passage, will be sintered brake block conveying and successively passes through
Feed zone, disbonded ragion, sintering zone, cooling zone and discharge zone are crossed, the conveyer belt is made of high-temperature insulation material.
6. the continuous atmosphere sintering furnace of high-speed rail brake block as claimed in claim 5, which is characterized in that the conveyer belt uses resistance to height
Warm ceramics are made.
7. such as the continuous atmosphere sintering furnace of high-speed rail brake block described in claim 5 or 6, which is characterized in that the high-speed rail brake block
Continuous atmosphere sintering furnace further includes conveyer belt deviation correcting device, driving device, directive wheel, electrical control gear and control climate dress
It sets；The driving device is placed in the lower section of feed zone, and the directive wheel is placed in the lower section of discharge zone end, the conveyer belt correction
Device is set to the two sides of the conveyer belt of the inlet of feed zone and the exit of discharge zone；The atmosphere control device is set to
The two sides of feed zone.
8. the continuous atmosphere sintering furnace of high-speed rail brake block as described in claim 1, which is characterized in that the high-speed rail brake block is continuous
Atmosphere sintering furnace further includes a temperature control system, and the temperature control system includes temperature monitoring device, data processing equipment and input
PCU Power Conditioning Unit, the fading unit, temperature monitoring device are connect with the data processing equipment signal, described
Temperature monitoring device is sintered disc surface temperature for monitoring, and the data processing equipment is by the monitoring result and prestores temperature
Degree value range is compared, and controls what fading unit was inputted to the electrical induction coil according to comparison result
Real-time power.
9. the continuous atmosphere sintering furnace of high-speed rail brake block as described in claim 1, which is characterized in that the high-speed rail brake block is continuous
Atmosphere sintering furnace further includes image identification system, and described image identifying system includes the image acquiring device and figure on furnace body
As storage device, described image acquisition device is spaced claps to being sintered brake block in the furnace body transfer passage to schedule
Image is taken the photograph, and the image of shooting is transmitted to described image deposits and store in a device.
10. the continuous atmosphere sintering furnace of high-speed rail brake block as claimed in claim 9, which is characterized in that described image identifying system
It further include image processing apparatus and alarm, described image acquisition device is spaced to schedule to the furnace body transfer passage
It is inside sintered brake block shooting image, and is sent to described image processing unit, shooting is compared by described image processing unit
Image carries out color difference with the standard picture prestored and compares, and if color difference is more than pre-stored threshold values, then described image processing unit controls institute
It states alarm and issues alarm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109489414A (en) * | 2018-11-15 | 2019-03-19 | 北京科技大学 | A kind of continuous atmosphere sintering furnace of high-speed rail brake block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109489414A (en) * | 2018-11-15 | 2019-03-19 | 北京科技大学 | A kind of continuous atmosphere sintering furnace of high-speed rail brake block |
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| GR01 | Patent grant |