WO2003004733A1 - Systeme de gestion d'installation de peinture - Google Patents
Systeme de gestion d'installation de peinture Download PDFInfo
- Publication number
- WO2003004733A1 WO2003004733A1 PCT/JP2002/006340 JP0206340W WO03004733A1 WO 2003004733 A1 WO2003004733 A1 WO 2003004733A1 JP 0206340 W JP0206340 W JP 0206340W WO 03004733 A1 WO03004733 A1 WO 03004733A1
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- WO
- WIPO (PCT)
- Prior art keywords
- data
- coating
- facility
- local
- coating equipment
- Prior art date
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Classifications
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
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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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45013—Spraying, coating, painting
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50062—Measure deviation of workpiece under working conditions, machine correction
Definitions
- the present invention relates to a coating equipment management system for controlling and monitoring a coating equipment located in a remote place using a computer, and in particular, paints data of paints and coating conditions in a number of domestic and overseas automobile production lines by using a communication line.
- a coating equipment management system for controlling and monitoring via a computer Related to a coating equipment management system for controlling and monitoring via a computer. Background art
- the entire body of the vehicle is immersed in an electrodeposition tank containing the electrodeposition paint, and the paint is deposited on the surface of the car body by applying voltage.
- an electrodeposition coating film Since the electrodeposition coating process uses a large amount of paint, equipment for automatic painting and automatic paint replenishment has been introduced. In addition, since a very large number of items need to be managed, a control system for managing the coating equipment based on the measurement data obtained in the coating process is generally introduced.
- FIG. 6 is a block diagram showing a configuration of a general electrodeposition coating facility.
- the electrodeposition coating equipment consists of an electrodeposition tank (602), a first recovery rinsing tank (604), a second recovery rinsing tank (605), and a water rinsing tank (6). 06) and a pure water washing tank (607).
- the automobile body (613) is suspended and transported by the carrier (612), and the electrodeposition tank (10 to 300 tons) filled with the electrodeposition paint. 6 02), and apply a voltage of 250 to 300 V from the rectifier (601) to the electrode plate (603) using the entire vehicle body as an electrode to deposit a coating film on the surface of the automobile pod. . Thereafter, the automobile body is washed in the first and second recovery rinsing tanks (604, 605), the fourth rinsing tank (606), and the pure water rinsing tank (607).
- the washing liquid used in the washing process in the first and second recovery washing tanks (604, 605) uses the filtrate obtained by filtering the paint under pressure using a UF (Ultra Filtration) membrane. .
- the filtrate is once stored in a filtrate tank (611) and supplied to each washing tank by a pump (not shown). The pigment components remaining after filtration are returned to the sub tank (610).
- the paint flowing from the electrodeposition tank (602) to the sub tank (610) is generated on the coating liquid level of the electrodeposition tank (602) because the sub tank (610) is installed with a liquid level difference. Removes foam and prevents foam from sticking to the car body (613).
- the paint from the first and second recovery tanks (604, 605), the microfiltration device (608), and the UF module (609) is returned to the electrodeposition tank (602) via the sub tank (610). .
- the automobile body is baked and dried at 150 to 200 ° C for 10 to 90 minutes by a drying facility to obtain an undercoat film.
- the electrodeposition paint used in the electrodeposition coating process uses an amine-added epoxy resin as a base resin, a block isocyanate curing agent, other additives, and an acid of a neutralizing agent in water from the viewpoint of corrosion resistance.
- Cationic electrodeposition paints composed of a dispersed emulsion, and a pigment paste in which a coloring pigment, a fireproof pigment, and other pigments are dispersed with a dispersing resin are used.
- the control items related to the electrodeposition coating equipment include the coating voltage of the rectifier (601), the current flowing during electrodeposition coating, the liquid level of the coating liquid in the electrodeposition tank (602), Flow velocity, liquid level difference from sub tank (610), current value flowing through each electrode plate (603), solids concentration in first and second recovered liquids, differential pressure at fill, and pure water washing process Washing pressure (nozzle water pressure), nozzle condition, differential pressure of the microfiltration device (608) at the filter, replacement frequency of the filter, permeation amount of the UF module (609), module
- the coating conditions (voltage, bath temperature, energizing time, etc. in electrodeposition coating) suitable for the state of the paint in order to maintain a good finished state .
- the paint used is sampled at a frequency of 1 to 3 times / week, and the paint properties such as pH, conductivity, acid concentration, film thickness, etc. are grasped by analytical tests. It is necessary to determine the amount and timing of the addition of neutralizing agents, water, organic solvents, etc., adjust the coating conditions, and adjust the amount by adding makeup paint.
- the paint used is sampled and transported to the line management department by car, rail, air or sea, and the paint received is analyzed at the line management department.
- the data on the coating conditions related to the coating equipment and coating properties will be filled out by a person in charge of the local factory on a check sheet and transmitted to the line management department technician by fax.
- the technician in the line management department considers the analysis data and the data on the coating conditions sent from the local factory, discusses it with the local staff using a telephone, etc., and gives instructions regarding the coating equipment.
- the present invention is not limited to electrodeposition coating, and it is necessary to timely control the state of paint and coating equipment used in coating lines at automobile production bases scattered in remote locations, especially overseas.
- the purpose is to provide a computer-controlled coating equipment management system that can be grasped and managed.
- a coating equipment management system for controlling and monitoring coating equipment in a production line, comprising: a rolling facility provided in a production line in a plurality of regions; A base facility for receiving data centrally from the facility, wherein the local facility includes a sensor installed in the coating facility, a data collection device for receiving a signal from the sensor, and a control device for controlling the coating facility. And a local communication device, the base facility includes a server device and a central analysis device, and the local communication device includes a data communication device including a measurement data received from the data collection device.
- the server device transmits the measurement data received from the local communication device to the central analysis device,
- the optimization data of the coating equipment obtained by the analysis of the measurement data by the central analysis device is transmitted to the oral communication device via a communication network, and the local communication device is received from the server device. It is possible to provide a coating equipment management system that converts the optimization data into a control code and transmits the control code to the control device.
- the coating equipment may be an electrodeposition coating equipment.
- the data transmitted by the local communication device via the communication network includes the measurement data received from the data collection device, a measurement item, a measurement date, and a coating facility. May be included.
- the optimization data transmitted by the server device via the communication network is set corresponding to the measurement item in case that the measurement data received from the local communication device is out of a specific range. It can include the optimization items and their set values.
- a coating facility management base facility for controlling and monitoring a coating facility in a production line, which is centralized from a mouth facility provided in the production line in a plurality of regions.
- a base facility that receives measurement data based on an output signal of a sensor installed in the painting facility of the oral facility via a communication network, and a central analysis device. And transmitting the measurement data received from the local communication device to the central analysis device, and optimizing the coating equipment of the local facility obtained by analyzing the measurement data by the central analysis device.
- a coating facility management base facility configured to transmit data to a local communication device via a communication network can be provided.
- a local facility for coating equipment management for controlling and monitoring coating equipment in a production line wherein the local facility has a coating equipment in a plurality of areas.
- a base facility that receives data from the plurality of local facilities in a concentrated manner, analyzes the data, and transmits appropriate data of the coating facility to the local facilities via a communication network.
- the local facility includes a sensor installed in the coating facility, a data collection device for receiving a signal from the sensor, a control device for controlling the coating facility, and a roulette communication.
- the local communication device transmits data including the measurement data received from the data collection device to a base facility via a communication network, and It is possible to provide a local facility for coating equipment management configured to convert the optimization data received from the equipment into a control code and transmit the control code to the control device.
- the coating equipment management base facility, or the coating equipment management local facility the optimization data includes the optimization items corresponding to the measurement items of the measurement data and their settings.
- the measurement items include paint properties and And / or a coating process item, wherein the paint properties include at least one selected from the group consisting of paint pH value, conductivity, solids concentration, ash concentration, acid concentration, and bath temperature.
- the coating process items are: rectifier coating voltage, coating current value, electrode plate current value, energization time, coating liquid level in the electrodeposition tank, flow rate, liquid level difference with sub tank, recovered liquid Process solids concentration, filter differential pressure, water washing pressure in water washing process, nozzle condition, UF module permeation amount in microfiltration process, frequency of backwashing, emulsion replenishment volume, paste replenishment volume, set number of coating equipment, And at least one selected from the group consisting of drying oven temperature.
- FIG. 1 is a block diagram showing a configuration of a coating equipment management system according to the present invention.
- FIG. 2 is a flowchart showing a process relating to the oral communication device.
- FIG. 3 is a flowchart showing processing relating to the server device.
- Fig. 4 is a table showing measurement data of multiple local facilities recorded in the database.
- Figure 5 is a table showing the time series data of a specific oral facility recorded in the database.
- FIG. 6 is a block diagram showing a configuration of the electrodeposition coating equipment. Detailed description of the invention
- FIG. 1 is a block diagram showing a configuration of a coating equipment management system according to the present invention.
- the coating equipment management system according to the present invention includes an oral facility provided in a manufacturing line in a plurality of regions, and a base facility which receives data from the plurality of local facilities in a concentrated manner. ing.
- the local facility includes a sensor (102), a data collection device (103), a control device (104), an input device (105) provided in an electrodeposition coating facility (101).
- a display device (106) and a local communication device (110) are provided.
- the base facility It has a server device (130).
- the data collection device (103) receives a signal from the sensor (102) installed in the coating equipment (101), converts the signal into digital data, and temporarily records it in a built-in recording unit (not shown). Send to the local communication device (110) at the timing.
- the local communication device (110) includes a processing unit (111), a recording unit (112), a device interface unit (113), a communication unit (114), a data bus (115), and an input device (105).
- Receiving necessary data and instructions from the server receiving the measurement data from the data collection device (104), converting the received data into data, and transmitting the data to the server device (130).
- Data exchange within the local communication device (110) is performed via the data bus (115).
- the operation status of the local communication device (110), the data input to the local communication device (110) by the line manager of the oral facility A, and the measurement data received from the data collection device (103) are displayed on the display device (106). ).
- the server device (130) of the base facility includes a processing unit (131), a recording unit, a communication unit (not shown), and a database (132), like the local communication device (110).
- the server device (130) is installed in the line management department at a remote location from the local facility A of the automobile manufacturing line where the electrodeposition coating equipment (101) and the oral communication device (110) are installed.
- the same coating equipment and local communication equipment are installed in local facility B as in local facility A, and the server device (130) communicates with multiple local facilities via a communication line (120). Transmission and reception.
- the communication line (120) is constituted by a public communication line or a dedicated communication line.
- FIG. 2 is a flowchart showing a process related to the local communication device (110).
- the processing performed by the processing unit (111) of the local communication device (110) will be described with reference to FIGS.
- step 201 the measurement conditions (measurement time, number of measurements, etc.) of the data collection device (103) input from the input device (105) are recorded in the recording unit (112), and the necessary measurement conditions are stored in the data storage unit. Send to measuring device (104).
- step 202 the processing unit (111) uses an internal timer (not shown). Monitor the time to determine whether the set measurement start time has been reached. If it is determined that the measurement start time has come, the process proceeds to step 203. If it is determined that the current time is not the measurement start time, the process proceeds to step 205 to check whether an e-mail has been received.
- the data collection device (103) is instructed to start measurement.
- the data collection device (103) performs measurement using the sensor installed in the electrodeposition coating equipment, and transmits the measurement data converted to digital data to the local communication device (110).
- the measurement data includes pH, conductivity, solid content, bath temperature, ash, acid content, etc. for electrodeposition paints.For electrodeposition coating equipment, the rectifier's coating voltage, current flowing during coating, The liquid level of the coating liquid in the electrodeposition tank, the flow velocity, the liquid level difference from the sub tank, the current value flowing through the electrode
- the oral communication device (110) records the received data in the recording unit (112) in association with the information on the date and time when the measurement data was received.
- step 205 an e-mail server (shown in the figure) connected to the communication line is accessed via the communication unit (115) to check for new mail from a server device (130) described later. If no, go to step 206.
- step 210 the sender address included in the mail header of the received mail is set in advance as the mail address of the server device (130). It is determined whether or not the address is the address. If it is determined that it is not the mail address of the server device (130), the process proceeds to step 211, a warning is displayed on the display device (106), and then the process proceeds to step 206. If it is determined that the mail address is the mail address of the server device (130), the process proceeds to step 212. In step 212, if the received mail is encrypted, the mail is decrypted and converted to an unencrypted text.
- step 213 the decrypted mail body is decrypted and data for controlling the device is extracted.
- the mail from the server device (130) records the control items for controlling the equipment of the coating equipment and the corresponding numerical values.
- a decoding method for example, it is possible to use a method in which a mail text which is a text sentence is searched using a control item designated in advance and a corresponding numerical value is obtained.
- step 214 a control code for each control device (104) to be controlled is generated and transmitted using the control items and numerical values obtained in step 213. Then, the process proceeds to step 206.
- the control device (104) changes the process conditions of the electrodeposition coating equipment, and the electrodeposition coating process is maintained in a normal state.
- step 206 it is determined whether data to be transmitted remains in the recording unit (112). If it is determined that there is no transmission data, the process returns to step 202. When it is determined that there is transmission data, the measurement data is read from the recording unit (112) to prepare for transmission.
- step 207 the measurement date and time, the measurement items, and the measurement data read from the recording unit (112) are converted into text data, and information for specifying a local facility and a painting line is added.
- step 208 the text data obtained in step 207 is encrypted.
- step 209 in order to send the encrypted data file to the server device (130), a mail header containing a destination mail address and a sender address is added, and the e-mail server is accessed to access the SMTP. Sent by protocol.
- step 216 it is determined whether or not there is a stop instruction. If it is determined that there is no stop instruction, the process returns to step 202. If it is determined that the stop instruction has been issued, the process is stopped and terminated. As described above, the processing unit (111) repeats the cycles of steps 202, 205, and 206 until the measurement starts, and when the e-mail is received from the server device (130), the processing unit (111) repeats steps 205, 210 to Perform steps 215 and 206. Then, when the measurement start time comes, steps 203 and 204 are repeated, and the transmission of the control code to the control device (104) is prioritized. At 205, it is checked once whether there is an e-mail of the server device (130), and if no e-mail has been received, the processing of step 206 and thereafter is performed.
- the necessary measurement items are automatically measured by the data collection device.
- the person in charge it is also possible for the person in charge to input the measured data from the input device (105).
- some data is collected by automatic measurement, and the other data is input to the input device (105), and the person in charge instructs the transmission from the input device (105).
- processing of sending an e-mail For example, of the measurement data shown in Figs. 4 and 5, data on the painting process, such as the amount of emulsion replenishment, the amount of paste replenishment, the number of units set, the coating voltage, and the current value, were collected by the sensor (102) installed in the coating equipment (101).
- paint staff characteristics such as paint solids, ash, acid concentration, pH, conductivity, etc. are measured by the person in charge, expatriates, etc. and input from the input device (105) By sending an e-mail, it is possible to send the measurement data to the line management department.
- FIG. 3 is a flowchart showing processing relating to the server device (130).
- the processing performed by the processing unit (131) of the server device (130) will be described with reference to FIGS.
- step 301 the mail server is accessed at a preset timing to judge whether an e-mail from the local communication device (110) has arrived. If it is determined that the mail has arrived, the process proceeds to step 302. If it is determined that the mail has not arrived, the reception of the mail is repeated until the next timing.
- step 302 the mail address of the sender is obtained from the mail header of the received mail obtained from the mail server, and is registered in the database in advance. Judge whether there is a match among the email addresses of multiple local facilities. If it is determined that there is no match, a warning is displayed on the display device (step 303), and the process returns to step 301. If it is determined that there is a match, the process proceeds to step 304.
- step 304 a reply mail notifying that the mail has been received is transmitted to the mail address of the sender obtained in step 302.
- step 305 if the received mail is encrypted, it is decrypted and converted to a non-encrypted text sentence.
- step 310 the received data is decoded to detect the measurement item, the measurement data, and the measurement date and time.
- the decoding method as described in step 2 13 regarding the oral communication device (1 10), a method of searching the text body of the text using the control items and obtaining the corresponding numerical value Can be used.
- step 307 the measurement item, measurement data, and measurement time detected in step 306 are registered in the database (132).
- the database In the database, the mail address of the oral facility, the painting line, the measurement items, etc. are registered in advance, and the data such as the measurement date and the date and time of the measurement are registered from the data received by e-mail.
- Figures 4 and 5 show examples of data registered in the database.
- Fig. 4 shows the measured data of multiple oral facilities recorded in the database. The data in the columns with data numbers 2 and 3 are different paint lanes at the same site of China A. It is an overnight measurement for in.
- Figure 5 shows measurement data for a specific local facility in chronological order.
- step 308 the measurement data of the local facility corresponding to the e-mail address of the sender identified in step 302 is read from the database, and the fluctuation of each item is analyzed. If it is determined that there is a possibility of deviation, appropriate data will be determined. For example, it is possible to determine whether the latest data for each item is out of the specified normal range, or to analyze the fluctuation tendency of each item during the specified period, and to deviate from the normal range in the near future. It is determined whether or not there is. As a result of these determinations, if it is determined that a particular measurement item is outside or may deviate from the normal range, the optimization items and set values corresponding to that measurement item will be applied. Determined as normalized data.
- the determination of the appropriateness data can be made automatically using a database that records the degree of deviation and the appropriateness data in advance. It is also possible for a technician to determine the appropriate data and to check the results automatically using a database.
- step 309 the optimization data (optimization items and set values) determined in step 308 is converted into text data, and information specifying the oral facility and the painting line is added.
- step 310 encryption processing is performed on the text data converted in step 309.
- step 311 the mail address of the sender specified in step 302 is added as a mail header to the data decoded in step 309, and the data is transmitted as an e-mail according to the SMTP protocol.
- step 312 it is determined whether or not there is a stop instruction. If it is determined that there is a stop instruction, the process ends.If it is determined that there is no instruction, the process is recorded in the database in step 301.
- FIG. 5 showing an example of the measurement data.
- the data in the columns of data numbers 1 and 2 in Fig. 5 show the results of the following control of the coating equipment at the site in China A by this system.
- the paint solids concentration of data No. 1 measured on April 6 exceeded the upper limit of 24%.
- the device shall determine the calibration data to be sent to the oral communication device in order to return the measurements to the normal range.
- the paint solids concentration is one of the most important items to be adjusted to be within a specific range.
- paint is replenished according to the number of vehicles passing.
- the number of set units is recorded in the database as an optimization item when the paint solids concentration deviates from the specified range, and the number of set units is correlated with the degree of deviation of the paint solids concentration.
- the server device can search the database and determine the appropriate data.
- the set number and 40 as the optimization items and their values are determined as the optimization data, and transmitted to the local communication device installed at the remote location A.
- the local communication device at the remote location A that received the optimization data converted the optimization data into the control code of the device to be controlled and transmitted it to the device to be controlled.
- the coating conditions of the coating equipment were changed, and in the next data of data No. 2 measured on April 7, the set number became the set value (40 units) and the paint solid content was 22%. It can be seen that the value has returned to the normal range.
- the coating equipment management system which concerns on this invention, it becomes possible to centrally and automatically monitor and control the coating equipment of the oral facilities scattered in Japan or all over the world. Also, without having to transport paint samples from the local facility to the line management department, the technician at the management site can grasp the status of the painting process and painting conditions at the oral facility in a timely manner, It is possible to efficiently give instructions necessary for managing the painting process to expatriates and others.
- a coating equipment management system for controlling and monitoring a coating equipment located in a remote place using a computer.
- paint equipment that controls and monitors data on paint and coating conditions on a large number of automobile manufacturing lines and parts manufacturing lines in Japan and overseas via communication lines, enabling efficient coating process management and cost reduction.
- a management system is provided.
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- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Human Computer Interaction (AREA)
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- Electrochemistry (AREA)
- Coating Apparatus (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
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Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/344,495 US6977012B2 (en) | 2001-07-02 | 2002-06-25 | Painting facility management system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2001/200707 | 2001-07-02 | ||
JP2001200707A JP4641672B2 (ja) | 2001-07-02 | 2001-07-02 | 塗装設備管理システム |
Publications (1)
Publication Number | Publication Date |
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WO2003004733A1 true WO2003004733A1 (fr) | 2003-01-16 |
Family
ID=19037785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/006340 WO2003004733A1 (fr) | 2001-07-02 | 2002-06-25 | Systeme de gestion d'installation de peinture |
Country Status (5)
Country | Link |
---|---|
US (1) | US6977012B2 (ja) |
JP (1) | JP4641672B2 (ja) |
CN (1) | CN100360718C (ja) |
MY (1) | MY131741A (ja) |
WO (1) | WO2003004733A1 (ja) |
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WO2004079057A1 (en) * | 2003-03-04 | 2004-09-16 | Valspar Sourcing Inc. | Electrocoat management system |
US7413643B2 (en) | 2003-03-04 | 2008-08-19 | Volsper Sourcing, Inc. | Treating an electrocoat system with a biosurfactant |
US8541194B2 (en) | 2003-03-04 | 2013-09-24 | Valspar Sourcing, Inc. | Detecting micro-organisms in an electrocoating process |
US10425246B2 (en) | 2011-07-27 | 2019-09-24 | Lg Electronics Inc. | Laundry machine and online system including the same |
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WO2006052812A1 (en) * | 2004-11-05 | 2006-05-18 | E. I. Du Pont De Nemours And Company | Computer implemented system for management of vehicle painting operation |
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Also Published As
Publication number | Publication date |
---|---|
JP2003013289A (ja) | 2003-01-15 |
US20030177978A1 (en) | 2003-09-25 |
US6977012B2 (en) | 2005-12-20 |
JP4641672B2 (ja) | 2011-03-02 |
CN100360718C (zh) | 2008-01-09 |
CN1462322A (zh) | 2003-12-17 |
MY131741A (en) | 2007-08-30 |
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