CN110794789A - Infiltration acceleration control system based on direct generation type atmosphere carburization - Google Patents
Infiltration acceleration control system based on direct generation type atmosphere carburization Download PDFInfo
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- 230000001133 acceleration Effects 0.000 title claims abstract description 12
- 230000008595 infiltration Effects 0.000 title claims description 15
- 238000001764 infiltration Methods 0.000 title claims description 15
- 238000005255 carburizing Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 30
- 239000010935 stainless steel Substances 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- 230000001939 inductive effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 5
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000003961 penetration enhancing agent Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32368—Quality control
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- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a permeation acceleration control system based on direct generation type atmosphere carburization, which comprises an upper computer system and a lower computer system, wherein the lower computer system comprises a single chip microcomputer, an inductive sensor, a needle valve stainless steel dropping device, a stainless steel ball valve, a pipeline, a liquid storage tank, an ultrasonic sensor, an air pressure controller, a tool and a carburizing furnace, a carrying table is arranged in the carburizing furnace, the needle valve stainless steel dropping device and the inductive sensor are arranged above the carrying table, the needle valve stainless steel dropping device is communicated with the liquid storage tank through the pipeline with the stainless steel ball valve, the ultrasonic sensor is arranged in the liquid storage tank, the liquid storage tank is communicated with the air pressure controller, and the single chip microcomputer is respectively and electrically connected with the inductive sensor, the stainless steel ball valve, the ultrasonic sensor and the ultrasonic sensor. The invention automatically controls the atmosphere carbon potential and the flux of the accelerant, and always maintains the optimal carbon potential, thereby ensuring the quality of carburized parts and reducing the energy consumption.
Description
Technical Field
The invention relates to a permeation acceleration control system, in particular to a permeation acceleration control system based on direct generation type atmosphere carburization
Background
With the continuous progress of industrial development, the service performance and quality requirements of parts are continuously improved; the surface hardness of the material can be increased by a surface modification method, so that the method is suitable for some special working environments, and the method for enhancing the surface hardness by a carburizing atmosphere is the most widely applied surface modification method; the existing carburizing process has the defects of long period, large deformation, non-ideal carburized layer structure, high energy consumption and the like, and the development of the carburizing technology is severely restricted; therefore, how to improve the carburizing efficiency and reduce the deformation becomes a hot spot in the research of manufacturing technology of carburized parts.
In general, in a multi-purpose furnace, a carburizing atmosphere is generated by directly introducing a hydrocarbon into the furnace, that is, a so-called direct atmosphere; compared with other atmosphere methods such as endothermic atmosphere prepared by a generator, the direct-generating atmosphere can save a large amount of energy; the raw material gas consumption of the carburizing method is only 1/4-1/5 of the generator type carburizing method, and the pipeline flow of the direct generation type atmosphere carburizing method is simple (the peripheral facilities are simple) and the operation is convenient.
At present, with the continuous and perfect development of heat treatment technology, the direct atmosphere carburizing method is a carburizing method which is simple to operate and low in energy consumption, and attracts people's attention at present; when the carburized layer is deep, the carburization time is long; as the carburization time increases, the resistance to plasticity of the steel decreases and the creep tendency of the workpiece increases; the austenite grain size grows along with the prolonging of the carburization heat preservation time, so that the deformation of the workpiece is increased; meanwhile, as the carburizing time is prolonged, the energy consumption caused by carburizing is increased, and the production cost is increased.
According to the problems, the invention provides a permeation acceleration control system based on direct atmosphere carburization, which can better solve the problems of low carburization efficiency, part deformation caused by increased carburization time, influence on fatigue strength of a carburized part and increase in energy consumption when a carburized layer is deeper.
Disclosure of Invention
The invention aims to: the utility model provides a control system oozes based on directly growing formula atmosphere carburization, this control system simple structure, convenient operation, and intelligent control carburization atmosphere's carbon potential and flow guarantee the carburization quality.
The technical scheme adopted by the invention is as follows: the utility model provides a control system oozes based on directly give birth to formula atmosphere carburization, is including the host computer system that is used for man-machine interaction operation control and the next computer system of executive instruction and feedback information, next computer system includes singlechip, inductive sensor, needle valve stainless steel drip ware, stainless steel ball valve, pipeline, liquid storage pot, ultrasonic sensor, air pressure controller, frock, carburizing furnace, be provided with the frock in the carburizing furnace, the top of this frock is provided with needle valve stainless steel drip ware and inductive sensor, needle valve stainless steel drip ware is through taking the pipeline and the liquid storage pot intercommunication of stainless steel ball valve, be provided with ultrasonic sensor in the liquid storage pot, liquid storage pot and air pressure controller intercommunication, the singlechip respectively with inductive sensor, stainless steel ball valve, ultrasonic sensor electric connection.
The working principle of the invention is as follows: the system consists of an upper computer system and a lower computer execution system connected with the upper computer system; the upper computer system transmits signals to an air supply system, a furnace temperature control system, a carbon potential control system and a penetration agent supply system in the lower computer execution system through presetting the process parameter values of the conventional mode and the penetration promotion mode, and modifies the process parameter values. The feed system of the energizer in the lower computer forms closed-loop control by the needle valve regulation and control and the feedback action of the inductive sensor and the upper computer, so that the dropping speed of the energizer can be automatically adjusted, and the aim of adjusting the flow of the carburizing atmosphere is fulfilled.
And furthermore, the lower computer system comprises four program modules, namely an air supply system, a furnace temperature control system, a carbon potential control system and a penetration enhancer supply system, each program module interacts with the upper computer system through a set communication protocol, executes according to the request of the upper computer system, generates a corresponding predefined response message according to the message, and outputs the predefined response message to the upper computer system.
Further, the upper computer system is provided with a conventional mode and an infiltration accelerating mode; the normal mode executes three program modules of an air supply system, a furnace temperature control system and a carbon potential control system, and the permeation accelerating mode is that a program module of a permeation accelerating agent supply system is added on the basis of the normal mode.
Furthermore, the feed system of the energizer agent jointly forms closed-loop control through needle valve regulation of a needle valve stainless steel instillator and feedback action of an inductive sensor and an upper computer system, and automatically adjusts the dropping speed of the energizer agent; the carbon potential of the atmosphere and the flow and speed of the carburizing agent are controlled, and the optimal carburizing technological parameters are effectively ensured.
Further, the ultrasonic sensor detects the storage capacity of the liquid storage tank and feeds back the storage information to the upper computer system; and the full-automatic control of the supply of the energizer is realized.
Furthermore, the inductive sensor detects the dropping speed of the liquid drops and feeds the dropping speed back to the upper computer system, the upper computer system compares the real-time speed with the process parameter value set by the process program, the atmosphere in the carbon furnace is prevented from changing too fast, the carburization quality is prevented from being reduced, and meanwhile, the waste of the carburization atmosphere can be reduced due to timely detection and feedback of the atmosphere in the carburization furnace.
Furthermore, the design idea of combining the control system and the carburizing process is to set 820 ℃ for a period of time of heat preservation before the strong carburizing period, so that the catalytic agent is decomposed, and the carbon black is prevented from being formed due to insufficient decomposition of the catalytic agent. High carbon potential is formed in a strong cementation period, higher concentration difference is generated, the carburization efficiency is improved, and after the diffusion period, along with the weakening of the surface carburization capacity, the carburization temperature and the carbon potential are reduced to reduce the carbon concentration in austenite, so that the precipitation quality of carbide is ensured. The fluctuation of the final carbon concentration gradient caused by the carbon potential deviation is avoided, and the stable transition of the carbon concentration gradient is realized. Meanwhile, because of the mutual relation between the carbon concentration gradient and the hardness gradient, the carbon concentration gradient which is relatively flat and slow can lead the hardness gradient of the permeable layer to change less, thus leading the surface of the permeable layer and the core to have relatively strong bonding capability and being beneficial to the promotion of the fatigue property and the wear resistance of the permeable layer. Secondly, the generation of non-martensite structures is reduced, and the phenomenon of surface hardness reduction is avoided, so that the surface performance of the infiltration layer is improved. The size variation of the common normal length and the cylindricity of the carburized gear is within the tolerance range, and the technical requirement of the subsequent gear processing technology on the deformation of the carburizing and quenching process is met.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the method realizes the accurate control of the influence of multiple parameters in the carburizing process, the important process indexes such as carbon potential, temperature, furnace pressure, the amount of the accelerant and the like meet the requirements of self-adaptation and self-regulation, the quality of the carburizing process is improved, the hardness value, the tissue performance and the deformation of the carburized product reach the technical requirements, and the energy consumption is further reduced. The invention has simple structure and convenient operation, and is suitable for a direct generation type atmosphere carburizing system.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a block diagram of the structure of the system for the delivery of a permeation enhancer of the present invention;
FIG. 2 is an overall control block diagram of the present invention;
FIG. 3 is a control block diagram of the system for the delivery of an agent for the induction of osmosis of the present invention;
labeled as: 1-an upper computer system, 2-a single chip microcomputer, 3-a carburizing furnace, 4-a tool, 5-a needle valve stainless steel dropping device, 6-an inductive sensor, 7-a liquid storage tank, 8-an ultrasonic sensor, 9-a stainless steel ball valve, 10-a pipeline and 11-an air pressure controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-3, a infiltration promotion control system based on direct generation type atmosphere carburization comprises an upper computer system 1 for man-machine interaction operation control and a lower computer system for executing instructions and feeding back information, wherein the lower computer system comprises a single chip microcomputer 2, an inductive sensor 6, a needle valve stainless steel drip chamber 5, a stainless steel ball valve 9, a pipeline 10, a liquid storage tank 7, an ultrasonic sensor 8, an air pressure controller 11, an object stage 4 and a carburizing furnace 3, the object stage 4 is arranged in the carburizing furnace 3, the needle valve stainless steel drip chamber 5 and the inductive sensor 6 are arranged above the object stage 4, the needle valve stainless steel drip chamber 5 is communicated with the liquid storage tank 7 through the pipeline 10 with the stainless steel ball valve 9, the ultrasonic sensor 8 is arranged in the liquid storage tank 7, the liquid storage tank 7 is communicated with the air pressure controller 11, the single chip microcomputer 2 is respectively communicated with the inductive sensor 6, The stainless steel ball valve 9, the ultrasonic sensor 8 and the ultrasonic sensor 8 are electrically connected.
The working principle of the invention is as follows: use 17CrNiMo6 as the experimental sample, on putting the experimental sample into objective table 4 in carburizing furnace 3, in host computer system 1, select the mode earlier, preset the conventional mode of experimental sample and the technological parameter of the mode of forcing to ooze, then transmit signal to four execution systems of next computer: the system comprises an air supply system, a furnace temperature control system, a carbon potential control system and a promoter supply system.
The switch of the gas supply electromagnetic valve is opened, gas is introduced into the liquid storage tank 7 through the one-way check valve, the size of liquid drops is controlled by the needle valve stainless steel dripper 5, the dripping speed of the liquid drops is monitored by the inductive sensor 6, and the liquid drops are fed back to the upper computer in time, the closed-loop control is characterized in that the amount of the atmosphere in the carburizing furnace 3 can be automatically controlled, the phenomenon that the atmosphere changes too fast to cause the carburizing quality to decline is avoided, and meanwhile, the waste of the carburizing atmosphere can be reduced due to the timely detection and feedback of the atmosphere in the carburizing furnace 3.
The atmosphere in the carburizing furnace 3 is detected by an oxygen probe in a carbon potential control system, and is sampled for multiple times by the singlechip 2, and the sampling is accurately measured, so that an accurate and stable data result is sent to an upper computer; comparing the real-time speed of the carburizing atmosphere in the furnace with the process parameter values set by the upper computer according to the process program, and keeping the dripping speed of liquid drops unchanged after the carbon potential atmosphere reaches the standard carbon potential; meanwhile, the ultrasonic sensor 8 monitors the storage amount of the energizer in the liquid storage tank 7 in real time and feeds back the storage amount to an upper computer, so that the supply of the energizer is controlled fully automatically.
The sample after the experiment is finished is tested for carburizing time, carburizing atmosphere dosage and carburizing quality and is compared with a common control system, so that a conclusion can be obtained; the control system is characterized in that the atmosphere carbon potential and the flux of the accelerant are automatically controlled, and the optimal carbon potential is always kept, so that the quality of carburized parts can be ensured, and the energy consumption is reduced; the control system has the advantages of simple structure, convenient operation, low energy consumption and good carburizing quality, and is suitable for a direct generation type atmosphere carburizing system.
Example 2
On the basis of the embodiment 1, the lower computer system comprises four program modules, namely an air supply system, a furnace temperature control system, a carbon potential control system and a promoter supply system, wherein each program module interacts with the upper computer system 1 through a set communication protocol, executes according to the request of the upper computer system 1, generates a corresponding predefined response message according to the message, and outputs the predefined response message to the upper computer system 1.
Example 3
On the basis of the embodiment 2, the upper computer system 1 is provided with a conventional mode and an infiltration promotion mode; the normal mode executes three program modules of an air supply system, a furnace temperature control system and a carbon potential control system, and the permeation accelerating mode is that a program module of a permeation accelerating agent supply system is added on the basis of the normal mode.
Example 4
On the basis of the embodiment 2, the energizer supply system forms closed-loop control by the needle valve regulation of the needle valve stainless steel instillator 5 and the feedback action of the inductive sensor 6 and the upper computer system 1 together, and automatically adjusts the dropping speed of the energizer; the carbon potential of the atmosphere and the flow and speed of the carburizing agent are controlled, and the optimal carburizing technological parameters are effectively ensured.
Example 5
On the basis of the embodiment 1, the ultrasonic sensor 8 detects the storage capacity of the liquid storage tank 7 and feeds back the storage information to the upper computer system 1; and the full-automatic control of the supply of the energizer is realized.
Example 6
On the basis of the embodiment 4, the inductive sensor 6 detects the dropping speed of the liquid drops and feeds the dropping speed back to the upper computer system 1, the upper computer system 1 compares the real-time speed with the technological parameter value set by the technological program, if the real-time speed is the same as the technological parameter value set by the technological program, the current situation is kept, and if the real-time speed is different from the technological parameter value set by the technological program, the air pressure of the pipeline 10 is changed through the air pressure controller 11, and the size of the liquid; the amount of the atmosphere in the carburizing furnace 3 can be automatically controlled, the phenomenon that the carburizing quality is reduced due to too fast atmosphere change is avoided, and meanwhile, the waste of the carburizing atmosphere can be reduced due to timely detection and feedback of the atmosphere in the carburizing furnace 3.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (6)
1. The utility model provides a control system oozes that urges based on directly born formula atmosphere carburization, includes host computer system (1) and the next computer system of executive instruction and feedback information that is used for man-machine interaction operation control, its characterized in that, next computer system includes singlechip (2), inductive sensor (6), needle valve stainless steel drip ware (5), stainless steel ball valve (9), pipeline (10), liquid storage pot (7), ultrasonic sensor (8), pneumatic controller (11), frock (4), carburizing furnace (3), be provided with objective table (4) in carburizing furnace (3), be provided with needle valve stainless steel drip ware (5) and inductive sensor (6) above this objective table (4), needle valve stainless steel drip ware (5) communicate with liquid storage pot (7) through pipeline (10) of taking stainless steel ball valve (9), be provided with ultrasonic sensor (8) in liquid storage pot (7), the liquid storage tank (7) is communicated with the air pressure controller (11), and the single chip microcomputer (2) is respectively connected with the inductive sensor (6), the stainless steel ball valve (9) and the ultrasonic sensor (8).
2. The system for controlling infiltration acceleration based on direct atmosphere carburization according to claim 1, characterized in that the lower computer system comprises four program modules of a gas supply system, a furnace temperature control system, a carbon potential control system and an infiltration acceleration agent supply system, each program module interacts with the upper computer system (1) through a set communication protocol, executes and generates a corresponding predefined response message according to the request of the upper computer system (1) and outputs the predefined response message to the upper computer system (1).
3. The system for controlling infiltration acceleration based on direct atmosphere carburization according to claim 2, characterized in that the upper computer system (1) is provided with a normal mode and an infiltration acceleration mode.
4. The system for controlling the catalytic infiltration based on the direct atmosphere carburization according to the claim 2, characterized in that the system for supplying the catalytic infiltration agent is controlled by a needle valve of a needle valve stainless steel instillator (5) and the feedback action of an inductive sensor (6) and an upper computer system (1) to form a closed-loop control, and the dropping speed of the catalytic infiltration agent is automatically adjusted.
5. The system for controlling infiltration acceleration based on direct atmosphere carburization of claim 1, characterized in that the ultrasonic sensor (8) detects the storage capacity of the liquid storage tank (7) and feeds back the storage information to the host computer system (1).
6. The system for controlling infiltration acceleration based on direct generation type atmosphere carburization according to claim 4, characterized in that the inductive sensor (6) detects the dropping speed of liquid drops and feeds back the dropping speed to the upper computer system (1), the upper computer system (1) compares the real-time speed with the process parameter value set by the process program, if the real-time speed is the same as the process parameter value, the current situation is kept, and if the real-time speed is different from the process parameter value, the dropping speed is changed by changing the air pressure of the pipeline (10) through the air pressure controller (11) and regulating the size of the liquid drops through the needle valve.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2748125A1 (en) * | 1976-10-28 | 1978-05-03 | Ishikawajima Harima Heavy Ind | VACUUM CARBON FURNACE |
| CN87102149A (en) * | 1987-03-17 | 1987-11-25 | 陕西省宝鸡叉车制造公司 | The control method of gas cementation sepage and fluid drip device |
| CN86108481A (en) * | 1986-12-11 | 1988-06-22 | 广州南洋电器厂 | A kind of direct generation type controllable atmosphere carburization technology |
| EP1225247A2 (en) * | 2001-01-19 | 2002-07-24 | Oriental Engineering Co., Ltd. | Carburizing method and carburizing apparatus |
| CN102063110A (en) * | 2010-12-03 | 2011-05-18 | 上海交通大学 | Control system of carbon intensity distribution of low-pressure carburized layer and control method thereof |
| JP2012007240A (en) * | 2011-07-19 | 2012-01-12 | Ihi Corp | Method and device for controlling quality of vacuum carburization, and vacuum carburizing furnace |
| CN202380069U (en) * | 2011-12-08 | 2012-08-15 | 北京机电研究所 | Accuracy control device of carburization gas delivering and exhausting system for vacuum and low-pressure carburization equipment |
| CN106200543A (en) * | 2016-08-17 | 2016-12-07 | 江苏丰东热技术股份有限公司 | A kind of carbon-potential control method of gas carburizing heating furnace |
| CN110042339A (en) * | 2019-06-05 | 2019-07-23 | 哈尔滨工程大学 | A kind of vacuum carburization method for the speedup that cools down |
-
2019
- 2019-11-18 CN CN201911128688.0A patent/CN110794789B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2748125A1 (en) * | 1976-10-28 | 1978-05-03 | Ishikawajima Harima Heavy Ind | VACUUM CARBON FURNACE |
| CN86108481A (en) * | 1986-12-11 | 1988-06-22 | 广州南洋电器厂 | A kind of direct generation type controllable atmosphere carburization technology |
| CN87102149A (en) * | 1987-03-17 | 1987-11-25 | 陕西省宝鸡叉车制造公司 | The control method of gas cementation sepage and fluid drip device |
| EP1225247A2 (en) * | 2001-01-19 | 2002-07-24 | Oriental Engineering Co., Ltd. | Carburizing method and carburizing apparatus |
| CN102063110A (en) * | 2010-12-03 | 2011-05-18 | 上海交通大学 | Control system of carbon intensity distribution of low-pressure carburized layer and control method thereof |
| JP2012007240A (en) * | 2011-07-19 | 2012-01-12 | Ihi Corp | Method and device for controlling quality of vacuum carburization, and vacuum carburizing furnace |
| CN202380069U (en) * | 2011-12-08 | 2012-08-15 | 北京机电研究所 | Accuracy control device of carburization gas delivering and exhausting system for vacuum and low-pressure carburization equipment |
| CN106200543A (en) * | 2016-08-17 | 2016-12-07 | 江苏丰东热技术股份有限公司 | A kind of carbon-potential control method of gas carburizing heating furnace |
| CN110042339A (en) * | 2019-06-05 | 2019-07-23 | 哈尔滨工程大学 | A kind of vacuum carburization method for the speedup that cools down |
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