JP2010071445A - Workpiece treating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece treating apparatus capable of suppressing a temperature drop in a container body when opening a container lid following a workpiece removing/feeding member, and keeping constant the temperature drop in the container body. <P>SOLUTION: The workpiece treating apparatus for heating and pressurizing a workpiece W held inside includes a pressure vessel 11 comprising a vessel body 21 and vessel lid 22 for opening/closing the vessel body 21, and holding the workpiece W inside; an external heater 12 attached to the outer peripheral surface of the vessel body 21 to heat the inside of the pressure vessel 11; and an auxiliary heater 17 heating the inside of the container body 21 to maintain the temperature in the container body 21 when opening the container lid 22 following the removing/feeding member of the workpiece W. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a work processing apparatus that heats and pressurizes a work housed therein.

Conventionally, as this type of pressure vessel (work processing apparatus), one having a vessel, a lid that closes the vessel, and an electric heater that surrounds the vessel and heats the solvent stored in the vessel is known. (See Patent Document 1).
In this pressure vessel, the corrosion resistance test (acceleration test) of the test piece against the solvent is performed by immersing the test piece (work) in a solvent heated to a test temperature by an electric heater for a certain period of time. Then, after the test is completed, the container is opened and the test piece is taken out. Then, a new test piece is immersed to close the container, the solvent is heated again to the test temperature, and the next corrosion resistance test is performed. ing.
JP-A-5-256369

By the way, when performing such an accelerated corrosion test, the test time is shortened (accelerated) by exposing the test piece to a heated and pressurized gaseous solvent (internal atmosphere) rather than a heated solvent. be able to.
In such a case, since the test piece is exchanged with the lid open, the hot internal atmosphere escapes to the outside and the cold external air enters the container according to the opening time. For this reason, the temperature in the container is lowered, and the temperature drop varies depending on the replacement time and the outside air temperature, and the test conditions are not constant. In addition, there is a problem that it takes time to heat the inside of the container again to obtain test conditions, resulting in a long test time.

  The present invention provides a workpiece processing apparatus that can suppress a temperature drop in a container body and keep a temperature drop in the container body constant when the container lid is opened along with a workpiece discharger. Is the issue.

  The work processing apparatus of the present invention is a work processing apparatus that heats and pressurizes a work housed therein, and includes a container main body and a container lid that opens and closes the container main body, and a processing container that houses the work inside. And external heating means attached to the outer surface of the container main body for heating the inside of the processing container, and the container main body is heated to maintain the temperature in the container main body when the container lid is opened with the workpiece discharger. And an auxiliary heating means.

  Moreover, it is preferable that a processing container is a pressure vessel.

  According to these configurations, even when outside air enters the container body when the container lid is opened due to the workpiece material removal material, the inside of the container body is heated by the auxiliary heating means. Can be suppressed. Moreover, the temperature in the container main body at the time of opening can be maintained constant.

  In this case, the container lid further includes a lid opening / closing means for opening and closing between a closed position for closing the container body and an open position for raising the container body just above the container body to open the container body. It is preferable to be disposed on the lower surface of the container lid.

  Similarly, it is preferable that the auxiliary heating means is disposed at the bottom of the container body.

  According to these structures, the temperature fall in a container main body can be efficiently suppressed with little heat amount by heating the inside of a container main body from the direct upper part or bottom part of a container main body.

  In this case, it is preferable that the auxiliary heating means is composed of a lamp heater, and further includes a protector that protects the auxiliary heating means from the pressure in the processing container and transmits infrared rays.

  According to this structure, the inside of a container main body can be efficiently heated using the directivity of a heat ray. The protector can protect the auxiliary heating means from the pressure during processing. In addition, the plate-shaped thing which has fixed intensity | strength is preferable, and a protector does not ask | require whether it is transparent, if infrared rays (far infrared rays) are permeate | transmitted.

  In this case, it is preferable that the container lid has a work setting portion for setting a work on the lower surface.

  According to this configuration, when the workpiece is removed, the workpiece can be taken out from the container body as the container lid is opened, and the workpiece can be put into the container body as the container lid is closed. That is, the work can be easily taken in and out of the container body.

  In this case, it is preferable that the test chemical solution is introduced into the processing container and the test chemical solution is heated and pressurized to a saturated vapor pressure state, and the workpiece is exposed to the atmosphere of the test chemical solution to perform an accelerated corrosion resistance test of the workpiece. .

  According to this configuration, when the accelerated corrosion resistance test of the workpiece is continuously performed, it is possible to prevent the temperature of the container body from decreasing when the workpiece is discharged. In addition, this can improve the repeatability in the accelerated test and can shorten the test time of the accelerated test as a whole.

  In this case, it is preferable to further include a control means for controlling the external heating means based on a control table relating to a test temperature and a test time including supply and removal of materials to the processing container.

  According to this configuration, temperature control including temperature rise at the start of the test and temperature drop at the end of the test can be performed with high accuracy, and the repeatability of the corrosion resistance test can be improved.

  Hereinafter, a workpiece corrosion resistance test apparatus to which a workpiece processing apparatus of the present invention is applied will be described with reference to the accompanying drawings. This corrosion resistance test equipment performs a corrosion resistance test on a perforated work piece whose surface has been coated. The liquid that comes into contact with the work when it is incorporated into the equipment as a part is used as a test chemical solution. An accelerated test is performed by exposing a work for a certain period of time to a chemical atmosphere heated to a saturated vapor pressure state. Here, the work and the structure around the work will be described first.

  As shown in FIG. 1, a plurality of workpieces W are placed on a workpiece holder 2, and a nonwoven fabric 3 impregnated with a test chemical solution is vertically directed, and the whole is housed in a workpiece case 4 and is subjected to a corrosion resistance test. Introduced into the apparatus 1. The workpiece W, which is a test piece, is a metal square plate having a plurality of small holes, and is subjected to metal plating. The corrosion resistance test using a test chemical solution mainly tests the resistance against peeling and cracking of the metal plating.

  The work holder 2 is formed in a lattice frame shape with high thermal conductivity aluminum or the like, and each work W is supported by a support protrusion 5 projecting inwardly in each frame. Is held in. That is, the plurality of works W are set in a matrix on the upper surface of the work holder 2. The nonwoven fabric 3 is made into a set of two sheets according to the planar shape of the work holder 2 and is disposed so as to sandwich the work holder 2 from above and below. In this case, the nonwoven fabric 3 is introduced in a state in which a predetermined amount of the test chemical solution has been soaked in advance. The work case 4 is a rectangular case made of aluminum or the like, and is filled with a chemical solution atmosphere in which the test chemical solution is heated to a saturated vapor pressure state. In addition, the site | part which attaches the nonwoven fabric 3 to the work holder 2 may be provided, and the work case 4 may be omitted.

  As shown in FIGS. 2 and 3, the corrosion resistance test apparatus 1 wraps a container main body 21 and a metal pressure container (processing container) 11 including a container lid 22 that opens and closes the container main body 21 and the container main body 21 from the outside. An external heater (external heating means) 12 provided in this manner, a heat insulating material (not shown) that covers the outside of the external heater 12, and a lid opening / closing mechanism (lid opening / closing means) 13 that opens and closes the container lid 22. . In addition, the corrosion resistance test apparatus 1 includes an auxiliary heater (auxiliary heating means) 17 that heats the inside of the container body 21 to maintain the temperature in the container body 21 when the container lid 22 is opened along with the material to be discharged from the work W, And a control device (control means) 15 for controlling the external heater 12, the lid opening / closing mechanism 13 and the auxiliary heater 17. Although details will be described later, in the corrosion resistance test apparatus 1, the interior of the container body 21 is heated by the auxiliary heater 17 when the container lid 22 is opened when the workpiece W is supplied and removed.

  The pressure vessel 11 is a legally small pressure vessel. A ring-shaped seal member 23 is interposed between the vessel main body 21 and the vessel lid 22, and is provided on the upper portion of the vessel main body 21. Thus, the container lid 22 that closes the container body 21 is firmly closed. The container body 21 is formed in a substantially cylindrical shape with a bottom using a thick metal material, and the upper part is formed in a flange shape. And the above-mentioned lock metal fitting is built in this flange-shaped upper part. The lower part of the container main body 21 with the container lid 22 attached is a container chamber 24 into which the work W accommodated in the work case 4 is put. Further, the atmosphere release device 16 having a valve for releasing pressure communicates with the container chamber 24. The container lid 22 is inserted deeply into the container main body 21, and the sealing member 23 is attached to the lower portion of the insertion sealing portion 25.

  The container lid 22 is formed of a thick metal material, and a lid body 31 that covers the opening end of the container body 21 and a sealing lid portion that is deeply inserted into the insertion sealing portion 25 of the container body 21 from the opening end. 32. The lid body 31 has a flange-like shape corresponding to the upper part of the flange shape of the container body 21 and is in close contact with the upper surface of the container body 21 in a flange-like manner when closed. The sealing lid portion 32 has an outer peripheral surface formed in a complementary shape to the fitting sealing portion 25, and on the flat bottom surface, an auxiliary heater 17, a protector 34 that protects the auxiliary heater 17, A case set portion 33 for detachably mounting the work case 4 is provided. Although not shown in detail, the case setting portion 33 has a pair of locking claws, for example, and is configured to be able to set the work case 4 horizontally. When the container lid 22 is closed, the outer peripheral surface of the sealing lid portion 32 is in close contact with the sealing member 23, so that the inside of the container body 21 is hermetically sealed and the work case 4 is sealed in the container chamber of the container body 21. 24.

  The lid opening / closing mechanism 13 includes an elevating mechanism 18 such as a link or a lead screw connected to the upper end of the container lid 22, and a motor 19 that drives the elevating mechanism 18. When opening the container lid 22, the control device 15 drives the air release device 16 described above to lower the pressure inside the container chamber 24 to atmospheric pressure, and then drives the motor 19 to raise the container lid 22, and the container body 21. Is released. Further, the container body 21 is closed in the reverse procedure. The rising end position of the container lid 22 by the lid opening / closing mechanism 13 is a position immediately above the container main body 21 where the work W (work case 4) attached to the container lid 22 is sufficiently pulled up from the opening end of the container main body 21. In this state, the work case 4 is attached to and detached from the container lid 22.

  The external heater 12 includes an upper heater 41, a lower heater 42, and a bottom heater 43 configured by a mantle heater or a rubber heater, and heats the entire pressure vessel 11. In this case, a control table regarding the test temperature and the test time including the temperature rise at the start of the test and the temperature drop at the end of the test is prepared in the control device 15. The heater 12 is controlled. Thereby, a container chamber is heated up to predetermined temperature and the inside of the work case 4 is heated. When the inside of the work case 4 is heated, the test chemical liquid soaked in the nonwoven fabric 3 becomes a saturated vapor pressure state and changes to a chemical liquid atmosphere. Then, the chemical atmosphere reacts with the heated workpiece W.

  The auxiliary heater 17 is composed of a lamp-type heater and is attached to the lower surface of the sealing lid portion 32, and heats the inside of the container body 21 by radiating infrared rays from the heating element. Moreover, the auxiliary heater 17 is airtightly protected from the pressure in the container main body 21 during the test by a protector 34 made of a plate material that transmits infrared rays (far infrared rays) such as a glass material or a silicon material. Note that halogen, xenon, carbon, or the like can be used for the heating element (lamp). Further, the auxiliary heater 17 may be further disposed at the bottom of the container body 21 or may be disposed only at the bottom of the container body 21 (see the phantom line in FIG. 2). Even in such a case, the protector 34 is airtightly protected as described above.

  The auxiliary heater 17 is linked to the lid opening / closing mechanism 13 via the control device 15, and when the workpiece W is removed, the container lid 22 moves to the raised end position and the container body 21 is completely opened. Immediately after that, the auxiliary heater 17 is driven to heat the inside of the container main body 21. In addition, the work W is set (supplied) to the container lid 22, and the auxiliary heater 17 is stopped immediately before the lid opening / closing mechanism 13 closes (lowers) the container lid 22.

  The auxiliary heater 17 may be driven immediately before the container lid 22 is opened by the lid opening / closing mechanism 13. In such a case, by raising the temperature in the container main body 21, it is possible to further suppress the temperature drop in the container main body 21 when the container lid 22 is opened.

  According to the above configuration, the inside of the container main body 21 can be heated while the container lid 22 is opened and the workpiece W is exchanged. Therefore, the temperature drop in the container body 21 can be suppressed, and the temperature drop in the container body 21 can be made constant.

It is a disassembled perspective view of the work case which accommodated the workpiece | work. It is sectional drawing at the time of the container lid obstruction | occlusion of a corrosion resistance test apparatus. It is sectional drawing at the time of the container lid open | release of a corrosion resistance test apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Corrosion resistance test apparatus 11 ... Pressure vessel (processing container) 12 ... External heater 13 ... Lid opening / closing mechanism 15 ... Control device 17 ... Auxiliary heater 21 ... Container main body 22 ... Container lid 33 ... Work set part 34 ... Protector W ... Workpiece

Claims (8)

A work processing apparatus for heating and pressurizing a work housed therein,
A container main body and a container lid for opening and closing the container main body, and a processing container for accommodating the workpiece therein,
An external heating means attached to the outer surface of the container body for heating the inside of the processing container;
An auxiliary heating means for heating the inside of the container main body to maintain the temperature in the container main body when the container lid is opened along with the material discharging material.   The work processing apparatus according to claim 1, wherein the processing container is a pressure container. A lid opening / closing means for opening and closing the container lid between a closed position for closing the container body and an open position for raising the container lid just above the container body to open the container body;
The work processing apparatus according to claim 1, wherein the auxiliary heating unit is disposed on a lower surface of the container lid.   The work processing apparatus according to claim 1, wherein the auxiliary heating unit is disposed at a bottom portion of the container main body. The auxiliary heating means is composed of a lamp heater,
The work processing apparatus according to claim 1, further comprising a protector that protects the auxiliary heating unit from pressure in the processing container and transmits infrared rays.   The work processing apparatus according to claim 1, wherein the container lid has a work setting unit for setting the work on a lower surface.   The test chemical solution is introduced into the processing container, and the test chemical solution is heated and pressurized to a saturated vapor pressure state, and the workpiece is exposed to the atmosphere of the test chemical solution to perform an accelerated corrosion resistance test of the workpiece. The work processing apparatus according to claim 2, wherein the work processing apparatus is characterized in that:   8. The apparatus according to claim 7, further comprising control means for controlling the external heating means based on a control table relating to a test temperature and a test time including supply and removal of the work to the processing container. The workpiece processing apparatus described.

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