JP6996138B2 - Sintered body manufacturing method and sintered body manufacturing equipment - Google Patents

Description

The present invention relates to a method for manufacturing a sintered body and an apparatus for manufacturing a sintered body.

A sintered body such as a ceramic substrate can be obtained by firing, for example, an unsintered body called a green sheet. In recent years, a non-shrinkage firing method has been known as a kind of firing method for unsintered bodies (see, for example, Patent Document 1). The non-shrinkage firing method is a method in which an unsintered laminated plate in which an unsintered body layer and a restraining layer for restraining the unsintered body layer are laminated is subjected to a firing step. In this non-shrinkage firing method, in-plane shrinkage due to firing of the unsintered body layer is suppressed by the restraint layer, so that it is possible to manufacture a sintered body with improved dimensional accuracy. Here, in the non-shrinkage firing method, the restraining layer of the unsintered laminated board becomes an unnecessary unnecessary layer after the firing step. As a method for peeling off the unnecessary layer laminated on the sintered body in this way, for example, as disclosed in Patent Document 1, a method using a peeling liquid such as water and a brush body is known.

Japanese Unexamined Patent Publication No. 2004-253497

In a laminated board having a sintered body layer and an unnecessary layer as described above, when a brush body is used to peel off the unnecessary layer, the position of the laminated board shifts from a predetermined position due to the sliding contact of the brush body. , There was a risk that the peeling force of the unnecessary layer would become unstable.

The present invention has been made in view of such circumstances, and an object thereof is to manufacture a sintered body capable of stably peeling off an unnecessary layer in a laminated plate having a sintered body layer and an unnecessary layer. The present invention is to provide a method and an apparatus for producing a sintered body.

The method for manufacturing a sintered body that solves the above problems is a method for manufacturing a sintered body from a laminated plate having a sintered body layer and an unnecessary layer, and is in a state of being moistened with a release liquid. A peeling step of peeling the unnecessary layer from the sintered body layer by sliding the brush body against the unnecessary layer is provided, and in the peeling step, the laminated plate is provided with a holding plate that sucks one main surface of the laminated plate. The unnecessary layer provided on the other main surface side of the laminated plate is peeled off while holding the above.

According to this method, when the brush body is slidably contacted with the unnecessary layer of the laminated plate, the position of the laminated plate is stabilized by holding the brush body with the holding plate as described above, so that the sliding contact force of the brush body is unnecessary for the laminated plate. It can be stably obtained in layers.

In the method for producing a sintered body, it is preferable that the holding plate has an outer peripheral contact surface that contacts the entire outer peripheral edge of one main surface of the laminated plate.
According to this method, the sliding contact force of the brush body can be easily transmitted to the outer peripheral edge of the unnecessary layer of the laminated plate.

In the method for manufacturing a sintered body, it is preferable that the holding plate is located on the inner peripheral side of the outer peripheral contact surface and further has an inner peripheral contact surface that is in contact with one main surface of the laminated plate.

According to this method, the contact area between the holding plate and the laminated plate can be increased, so that the laminated plate can be held more stably. This makes it easier to transmit the sliding contact force of the brush body to the unnecessary layer of the laminated board.

In the method for manufacturing a sintered body, the holding plate has a non-contact surface that forms a flat surface continuous with the outer peripheral contact surface and is non-contact with the laminated plate, and the non-contact surface is the non-contact surface. It is preferable that it is arranged so as to surround the outer peripheral contact surface.

According to this method, deformation of the outer peripheral contact surface of the holding plate can be suppressed, so that the adhesion between the outer peripheral contact surface and the laminated plate can be improved. As a result, the suction force of the holding plate that sucks the laminated board is sufficiently exerted, and even if a relatively strong sliding contact force is applied to the unnecessary layer of the laminated board from the brush body, the misalignment of the laminated board is prevented. It becomes possible.

In the method for manufacturing a sintered body, the brush body is a roll brush driven by rotation, and it is preferable to move the holding plate and the roll brush relative to each other.
According to this method, for example, the peeling step can be efficiently performed, and the unnecessary layer peeled in the peeling step can be easily discharged.

In the method for manufacturing the sintered body, it is preferable to rotate the roll brush against the moving direction of the laminated board defined in the relative movement.
According to this method, the peeling force for peeling off the unnecessary layer of the laminated board can be further increased.

In the method for manufacturing a sintered body, the laminated board has unnecessary layers on both sides of the sintered body layer, and the peeling step is a first step of peeling one of the unnecessary layers and the other of the above. The brush body provided with the second step of peeling off the unnecessary layer, and the brush body used in the first step and the second step is the common roll brush, and in the relative movement of the first step and the second step. It is preferable that the defined moving directions of the laminated plates are the same as each other.

According to this method, it is easy to secure a space for carrying in the laminated board and carrying out the sintered body, and it is possible to reduce the size of the manufacturing equipment.
In the method for producing a sintered body, the material of the brush of the brush body is preferably a polyamide resin.

According to this method, the main surface of the sintered body layer of the laminated board is less likely to be scratched, and sufficient peeling force of the unnecessary layer can be obtained.
In the method for manufacturing a sintered body, the laminated board is obtained by firing the unsintered body layer of the unsintered laminated board in which the unsintered body layer and the restraining layer for restraining the unsintered body layer are laminated. It is preferable that the unnecessary layer of the laminated board is the restraining layer.

According to this method, a sintered body having high dimensional accuracy can be obtained.
In the method for producing a sintered body, the thickness of the laminated board may be 5 mm or less.
The thinner the laminated board, the more easily the laminated board is deformed or damaged. Even with such a thin laminated plate, by using a holding plate as in the above-mentioned method for manufacturing a sintered body, the laminated plate is protected and the sliding contact force from the brush body is applied to the unnecessary layer of the laminated plate. Can be fully communicated to.

One aspect of the sintered body manufacturing apparatus that solves the above problems is a sintered body manufacturing apparatus that manufactures a sintered body from a laminated plate having a sintered body layer and an unnecessary layer, and the sintered body layer. The peeling portion is provided with a peeling portion for peeling the unnecessary layer from, and the peeling portion includes a holding plate that sucks one main surface of the laminated plate to hold the laminated plate and the laminated plate held by the holding plate. It includes a stripping liquid supply unit provided on the other main surface side to supply the stripping liquid to the unnecessary layer, and a brush body that is slidably contacted with the unwanted layer to which the stripping liquid is supplied.

According to the present invention, it is possible to stably peel off the unnecessary layer in the laminated board having the sintered body layer and the unnecessary layer.

It is a schematic front view which shows the manufacturing apparatus of the sintered body in Embodiment. (A) is a plan view showing a holding plate, and (b) is a cross-sectional view taken along line 2b-2b of (a). It is a schematic front view which shows a part of the manufacturing apparatus of a sintered body. It is a schematic front view which shows a part of the manufacturing apparatus of a sintered body. It is a schematic front view which shows a part of the manufacturing apparatus of a sintered body. It is a schematic front view which shows a part of the manufacturing apparatus of a sintered body.

Hereinafter, a method for manufacturing a sintered body and an embodiment of a sintered body manufacturing apparatus will be described with reference to the drawings. In the drawings, for convenience of explanation, a part of the configuration may be exaggerated or simplified. In addition, the dimensional ratio of each part may differ from the actual one. First, a sintered body manufacturing apparatus will be described.

<Overview of sintered body manufacturing equipment>
As shown in FIG. 1, the sintered body manufacturing apparatus 11 in the present embodiment is an apparatus for manufacturing the sintered body S2 from the laminated plate S1. The laminated plate S1 has a sintered body layer SA and an unnecessary layer SB. The laminated plate S1 carried into the sintered body manufacturing apparatus 11 has unnecessary layers SB on both sides of the sintered body layer SA.

The sintered body manufacturing apparatus 11 includes a carry-in portion P1 of the laminated plate S1, a peeling portion P2 for peeling the unnecessary layer SB from the sintered body layer SA of the laminated plate S1, and a sintered body layer SA from which the unnecessary layer SB is peeled off. It is provided with a post-treatment section P3 for post-treating the main surface of the above, an inversion section P4 for inverting the laminated plate S1, and a carry-out section P5 for carrying out the sintered body S2.

The sintered body manufacturing apparatus 11 includes a holding plate 12 that attracts one main surface (lower surface in the present embodiment) of the laminated plate S1 to hold the laminated plate S1. The peeling portion P2 in the sintered body manufacturing apparatus 11 is supplied with a peeling liquid supply unit 13 for supplying the peeling liquid to the unnecessary layer SB provided on the other main surface side of the unnecessary layer SB of the laminated plate S1. It is provided with a brush body 14 that is slidably contacted with the unnecessary layer SB. The sintered body manufacturing apparatus 11 of the present embodiment further includes a moving mechanism 15 for relatively moving the holding plate 12 with respect to the brush body 14, and a reversing mechanism 16 for reversing the laminated plate S1 at the reversing portion P4. ..

<Holding plate>
As shown in FIGS. 2A and 2B, the holding plate 12 in the sintered body manufacturing apparatus 11 has a contact surface 17 that contacts one main surface of the laminated plate S1. The contact surface 17 of the holding plate 12 includes an outer peripheral contact surface 17a that contacts the entire outer peripheral edge of one main surface of the laminated plate S1 and an inner peripheral contact surface 17b that is located on the inner peripheral side of the outer peripheral contact surface 17a. have. The inner peripheral contact surface 17b is composed of a plurality of holding plates 12 separated from each other in the in-plane direction.

The holding plate 12 of the present embodiment has four inner peripheral contact surfaces 17b, but the inner peripheral contact surfaces 17b may be singular or may be plural other than four.
The holding plate 12 has an annular outer peripheral groove 18a that is continuous along the inner edge of the outer peripheral contact surface 17a. The holding plate 12 of the present embodiment is formed between adjacent inner peripheral contact surfaces 17b and has an inner concave groove 18b continuous with the outer peripheral concave groove 18a.

The holding plate 12 has a non-contact surface 19 which is a flat surface continuous with the outer peripheral contact surface 17a and which is not in contact with the laminated plate S1. The non-contact surface 19 is arranged so as to surround the outer peripheral contact surface 17a.

The holding plate 12 has a suction hole 20 that is on the inner peripheral side of the outer peripheral contact surface 17a and opens at a position that does not overlap with the inner peripheral contact surface 17b in a plan view. A suction device 21 is connected to the suction hole 20. As the suction device 21, a decompression pump or the like can be used. The suction holes 20 may be singular or plural.

With the laminated plate S1 placed on the holding plate 12 configured in this way, suction is performed through the suction hole 20 to reduce the pressure of the outer peripheral concave groove 18a and the inner concave groove 18b. One main surface is sucked. As a result, the laminated plate S1 can be maintained in close contact with the contact surface 17 of the holding plate 12.

The shape and dimensions of the outer peripheral contact surface 17a of the holding plate 12 can be changed according to the outer shape of the laminated plate S1. The width dimension of the outer peripheral contact surface 17a of the holding plate 12 is preferably 5 mm or more. That is, it is preferable that the main surface of the laminated plate S1 is in contact with the outer peripheral contact surface 17a of the holding plate 12 with a width of 5 mm or more from the outer edge. The shape and dimensions of the inner peripheral contact surface 17b of the holding plate 12 can also be changed. The area of the contact surface 17 of the holding plate 12 is preferably 60% or more, more preferably 70% or more, when the area of the main surface of the laminated plate S1 is 100%. By increasing the area of the contact surface 17 of the holding plate 12, the laminated plate S1 can be stably held.

The contact surface 17 of the holding plate 12 is preferably made of a material having high cushioning properties and high adhesion to the laminated plate S1. More specifically, the holding plate 12 of the present embodiment includes a plate base 12a and a pad portion 12b laminated on the plate base 12a. The suction hole 20 is formed through the plate substrate 12a. The pad portion 12b has the above-mentioned contact surface 17 and non-contact surface 19. The pad portion 12b is made of a material softer than the plate substrate 12a. The plate substrate 12a is preferably made of, for example, a metal material. The pad portion 12b is preferably composed of, for example, a rubber-based material or a resin-based material, more preferably composed of a foam having a closed-cell structure, and is composed of an ester-based polyurethane foam having a closed-cell structure. It is more preferable to be done. The hardness of the pad portion 12b is preferably A50 or more and A80 or less in A hardness (JIS K6253-3: 2012) measured by a type A durometer.

<Brush body>
The brush body 14 in the sintered body manufacturing apparatus 11 is a roll brush that is rotationally driven. A rotary drive unit 22 such as a motor is connected to the brush body 14. The brush body 14 is rotationally driven around a rotation axis extending along the plate surface of the laminated plate S1. The distance between the brush body 14 and the holding plate 12 can be adjusted by using a well-known screw mechanism, a position adjusting mechanism such as a fluid pressure cylinder, or the like.

The material of the brush of the brush body 14 is preferably a polyamide resin. The fibers of the brush may contain an abrasive. The bristles of the brush are preferably 10 mm or more and 30 mm or less. When the bristles of the brush are 10 mm or more, it is difficult for an excessive load to be applied to the sintered body layer SA, so that damage to the sintered body layer SA can be suppressed. When the bristles of the brush are 30 mm or less, the peeling force of the unnecessary layer SB can be increased. The wire diameter of the brush is preferably 0.1 mm or more and 0.5 mm or less. When the wire diameter of the brush is 0.1 mm or more, the peeling force of the unnecessary layer SB can be increased. When the wire diameter of the brush is 0.5 mm or less, it is difficult for an excessive load to be applied to the sintered body layer SA, so that damage to the sintered body layer SA can be suppressed.

<Release liquid supply unit>
The stripping liquid supply unit 13 in the sintered body manufacturing apparatus 11 sprays the stripping liquid toward the laminated plate S1 held on the holding plate 12. The release liquid supply unit 13 includes a nozzle for injecting the release liquid. The stripping liquid is not particularly limited as long as it is a liquid that can promote stripping of the unnecessary layer SB from the sintered body layer SA. As the stripping liquid, water is preferably used because it is easy to handle.

<Movement mechanism>
The moving mechanism 15 in the sintered body manufacturing apparatus 11 is configured to be able to reciprocate the holding plate 12 from the carrying-in portion P1 to the reversing portion P4. The moving mechanism 15 can be composed of, for example, a conveyor unit for transporting the holding plate 12 and a driving unit for moving the conveyor unit. The conveyor portion of the moving mechanism 15 includes a well-known chuck mechanism for positioning the holding plate 12 with respect to the conveyor portion.

<Reversal mechanism>
The reversing mechanism 16 in the sintered body manufacturing apparatus 11 is configured to hold, for example, both ends of the laminated plate S1, invert the front and back sides of the laminated plate S1, and then place the laminated plate S1 on the holding plate 12. More specifically, the reversing mechanism 16 includes a holding portion for holding the laminated plate S1, an elevating mechanism for raising and lowering the holding portion, and a rotating mechanism for rotating the holding portion so as to invert the laminated plate S1.

<Washing and drying>
The sintered body manufacturing apparatus 11 includes a post-treatment unit P3 provided with a cleaning liquid supply unit 23 that further supplies the cleaning liquid in a post-process of the peeling unit P2. The cleaning liquid supply unit 23 is arranged between the brush body 14 and the reversing mechanism 16 so as to supply the cleaning liquid to the moving path of the holding plate 12. The cleaning liquid supply unit 23 includes a nozzle for injecting the cleaning liquid. Water is preferably used as the cleaning liquid.

The post-treatment unit P3 of the sintered body manufacturing device 11 in the present embodiment is a drying device 24 that dries the main surface of the sintered body layer SA (sintered body S2) exposed by further peeling off the unnecessary layer SB. It is equipped with. The drying device 24 is arranged so as to dry the main surface of the sintered body layer SA washed away with the washing liquid. As the drying device 24, for example, a blower device that blows warm air onto the main surface of the sintered body layer SA can be used. The drying device 24 may be a heating device such as an infrared heater.

<Manufacturing method of sintered body>
Next, a method for manufacturing the sintered body will be described.
The method for manufacturing the sintered body is a method for manufacturing the sintered body S2 from the laminated plate S1. The laminated board S1 is obtained by firing the unsintered layer of the unsintered laminated board in which the unsintered body layer and the restraining layer that restrains the unsintered body layer are laminated. As the unsintered body layer, a well-known green sheet can be used. Examples of the green sheet include a green sheet for forming a multilayer ceramic substrate, a green sheet for forming a wavelength conversion member, and the like. The unsintered body layer may have a single-layer structure or a multi-layer structure. The unsintered layer (green sheet) contains, for example, glass powder and a binder.

The restraint layer is composed of a material that does not sinter at the firing temperature of the unsintered body layer. The restraint layer contains, for example, an inorganic powder and a binder. As the inorganic powder, for example, it is a powder of a metal oxide, and a powder of aluminum oxide can be preferably used.

The unsintered laminated board can be formed by crimping the unsintered body layer and the restraint layer. The firing step of firing the unsintered layer of the unsintered laminated plate may be performed in a state where the unsintered laminated plate is pressurized in the thickness direction, or may be performed without pressurization.

In the non-shrinkage firing method in which the unsintered laminated plate configured in this way is fired, the in-plane shrinkage accompanying the firing of the unsintered body layer is suppressed by the restraint layer, so that the sintered body with improved dimensional accuracy. It becomes possible to manufacture S2. The restraint layer of the unsintered laminated board becomes unnecessary after the unsintered body layer is fired. That is, the restraining layer of the unsintered laminated board is an unnecessary layer SB that is no longer needed in the laminated board S1 after the firing step. The laminated board S1 has a thickness of, for example, 5 mm or less. The thickness of the laminated board S1 is, for example, 0.5 mm or more.

The method for manufacturing the sintered body includes a peeling step of peeling the unnecessary layer SB from the sintered body layer SA by sliding the brush body 14 against the unnecessary layer SB in a state of being moistened with a stripping liquid. The peeling step of the present embodiment includes a first step of peeling off one unnecessary layer SB of the laminated board S1 and a second step of peeling off the other unnecessary layer SB of the laminated board S1.

As shown in FIG. 3, the first step of the peeling step is performed in a state where the laminated plate S1 is held by the holding plate 12 that sucks one main surface of the laminated plate S1. In the first step of the peeling step, the unnecessary layer SB provided on the other main surface side of the laminated plate S1 is peeled off. In this first step, the holding plate 12 is moved in the first moving direction D1 by the moving mechanism 15. As a result, the holding plate 12 and the roll brush (brush body 14) can be relatively moved. At this time, from the viewpoint of increasing the peeling force of the unnecessary layer SB, it is preferable to rotate the roll brush (brush body 14) against the first moving direction D1.

As shown in FIG. 4, in the method for producing a sintered body, a cleaning step and a drying step are performed after the first step of the peeling step. In the cleaning step, the main surface of the sintered body layer SA exposed by peeling off the unnecessary layer SB in the first step is cleaned with the cleaning liquid supplied from the cleaning liquid supply unit 23. In the drying step, the main surface of the sintered body layer SA washed with the washing liquid is dried. The cleaning step and the drying step can be performed by moving the holding plate 12 to the post-treatment section P3 in the above-mentioned sintered body manufacturing apparatus 11.

Next, the holding plate 12 is moved to the reversing portion P4 in the sintered body manufacturing apparatus 11. At this time, the other main surface (upper surface) of the laminated plate S1 is an exposed surface on which the sintered body layer SA is exposed.

Subsequently, as shown in FIG. 5, in the method for manufacturing a sintered body, an inversion step is performed in the inversion portion P4. In the inversion step, the laminate S1 is inverted by the inversion mechanism 16 so that the unnecessary layer SB of the laminate S1 is on the upper surface. The laminated plate S1 inverted in the inversion step is held by the holding plate 12. That is, in the laminated plate S1 after the inversion step, the main surface (lower surface) where the sintered body layer SA is exposed is sucked by the holding plate 12 to be held by the holding plate 12. Next, the holding plate 12 is moved in the second moving direction D2 opposite to the first moving direction D1.

Subsequently, as shown in FIG. 6, the second step of the peeling step is performed in the peeling portion P2 in the same manner as the first step of the peeling step. That is, in the first step and the second step of the peeling step, a common brush body 14 (roll brush) is used. Further, in the first step and the second step of the peeling step, the moving directions of the laminated plates S1 are the same first moving direction D1. In this embodiment, even after the second stage of the peeling step, the obtained sintered body S2 is carried out to the carry-out unit P5 after performing the washing step and the drying step.

The obtained sintered body S2 is subjected to post-processing such as surface polishing, if necessary. Examples of the sintered body S2 include a multilayer ceramic substrate, a wavelength conversion member that emits fluorescence having a wavelength different from that of the incident excitation light, and the like.

According to the embodiment described in detail above, the following effects are exhibited.
(1) The method for manufacturing a sintered body is a method for manufacturing a sintered body S2 from a laminated plate S1 having a sintered body layer SA and an unnecessary layer SB. The method for manufacturing the sintered body includes a peeling step of peeling the unnecessary layer SB from the sintered body layer SA of the laminated plate S1 by sliding the brush body 14 to the unnecessary layer SB in a state of being moistened with a peeling liquid. .. In the peeling step, the unnecessary layer SB provided on the other main surface side of the laminated plate S1 is peeled off while the laminated plate S1 is held by the holding plate 12 that sucks one main surface of the laminated plate S1.

According to this method, when the brush body 14 is slidably contacted with the unnecessary layer SB of the laminated plate S1, the position of the laminated plate S1 is stabilized by holding the brush body 14 with the holding plate 12 as described above, so that the brush body 14 is slid. The contact force can be stably transmitted to the unnecessary layer SB of the laminated plate S1. Therefore, the unnecessary layer SB in the laminated plate S1 having the sintered body layer SA and the unnecessary layer SB can be stably peeled off.

(2) In the method for manufacturing a sintered body, the holding plate 12 has an outer peripheral contact surface 17a that is in contact with the entire circumference of the outer peripheral edge on one main surface of the laminated plate S1. In this case, the sliding contact force of the brush body 14 can be easily transmitted to the outer peripheral edge of the unnecessary layer SB of the laminated plate S1. Therefore, the peeling force for peeling off the unnecessary layer SB of the laminated board S1 can be increased.

(3) In the method for manufacturing a sintered body, the holding plate 12 is located on the inner peripheral side of the outer peripheral contact surface 17a and further has an inner peripheral contact surface 17b that is in contact with one main surface of the laminated plate S1. There is. In this case, since the contact area between the holding plate 12 and the laminated plate S1 can be increased, the laminated plate S1 can be held more stably. This makes it easier to transmit the sliding contact force of the brush body 14 to the unnecessary layer SB of the laminated plate S1. Therefore, the peeling force for peeling off the unnecessary layer SB of the laminated board S1 can be further increased.

(4) In the method for manufacturing a sintered body, the holding plate 12 has a non-contact surface 19 which is a flat surface continuous with the outer peripheral contact surface 17a and which is not in contact with the laminated plate S1. The non-contact surface 19 of the holding plate 12 is arranged so as to surround the outer peripheral contact surface 17a.

In this case, since the deformation of the outer peripheral contact surface 17a of the holding plate 12 can be suppressed, the adhesion between the outer peripheral contact surface 17a and the laminated plate S1 can be improved. As a result, the suction force of the holding plate 12 that sucks the laminated plate S1 is sufficiently exerted, so that even if a relatively strong sliding contact force is applied from the brush body 14 to the unnecessary layer SB of the laminated plate S1, the laminated plate S1 It is possible to prevent the misalignment of. Therefore, the peeling force for peeling off the unnecessary layer SB of the laminated board S1 can be further increased.

(5) In the method for manufacturing a sintered body, the brush body 14 is a roll brush that is rotationally driven, and the holding plate 12 and the roll brush are relatively moved. In this case, the peeling step can be efficiently performed, and the unnecessary layer SB peeled off in the peeling step can be easily discharged. Therefore, the productivity of the sintered body S2 can be easily increased.

(6) In the method for manufacturing a sintered body, the roll brush is rotated against the moving direction (first moving direction D1) of the laminated plate S1 defined in the relative movement between the holding plate 12 and the roll brush. That is, in the present embodiment, the roll brush is rotated in the reverse direction with respect to the forward rotation in the moving direction of the laminated plate S1. In this case, the peeling force for peeling off the unnecessary layer SB of the laminated board S1 can be further increased. This makes it possible to reduce the size of the manufacturing equipment by reducing the number of brush bodies 14, for example. Further, for example, it is possible to increase the production efficiency of the sintered body S2.

(7) The laminated plate S1 has unnecessary layers SB on both sides of the sintered body layer SA. The peeling step in the method for manufacturing a sintered body includes a first step of peeling one unnecessary layer SB and a second step of peeling the other unnecessary layer SB. In the peeling step, the brush bodies 14 used in the first step and the second step are common roll brushes, and the moving directions of the laminated plates S1 defined in the relative movements of the first step and the second step are the same as each other. This is the movement direction (first movement direction D1).

In this case, it is easy to secure a space for carrying in the laminated plate S1 and carrying out the sintered body S2, and it is possible to reduce the size of the manufacturing equipment.
(8) In the method for producing a sintered body, the material of the brush of the brush body 14 is preferably a polyamide resin. In this case, the main surface of the sintered body layer SA of the laminated plate S1 is less likely to be scratched, and sufficient peeling force of the unnecessary layer SB can be obtained. Therefore, it is possible to improve the yield of the sintered body S2 and increase the production efficiency of the sintered body S2.

(9) The laminated board S1 is obtained by firing the unsintered layer of the unsintered laminated board in which the unsintered layer and the restraining layer for restraining the unsintered layer are laminated. The unnecessary layer SB of the laminated board S1 is a restraining layer. In this case, the sintered body S2 with high dimensional accuracy can be obtained.

(10) The thinner the laminated plate S1, the more easily the laminated plate S1 is deformed or damaged. Even with such a thin laminated plate S1, by using the holding plate 12 as in the above method for manufacturing a sintered body, the sliding contact force from the brush body 14 is laminated while protecting the laminated plate S1. It can be sufficiently transmitted to the unnecessary layer SB of the plate S1. Therefore, the method for producing the sintered body of the present embodiment can be suitably used as a method for producing the sintered body S2 from the laminated plate S1 having a thickness of 5 mm or less.

(11) The sintered body manufacturing apparatus 11 is an apparatus for manufacturing the sintered body S2 from the laminated plate S1 having the sintered body layer SA and the unnecessary layer SB. The sintered body manufacturing apparatus 11 includes a peeling portion P2 for peeling the unnecessary layer SB from the sintered body layer SA of the laminated plate S1. The peeling portion P2 is a holding plate 12 that sucks one main surface of the laminated plate S1 to hold the laminated plate S1 and an unnecessary layer provided on the other main surface side of the laminated plate S1 held by the holding plate 12. It includes a stripping liquid supply unit 13 that supplies the stripping liquid to the SB, and a brush body 14 that is slidably contacted with the unnecessary layer SB to which the stripping liquid is supplied.

According to this configuration, the same action and effect as those described in the above column (1) can be obtained.
(Change example)
The above embodiment may be modified as follows.

As the structure of the holding plate 12 used in the method for manufacturing the sintered body, for example, a structure having a contact surface only inside the outer peripheral edge of one main surface of the laminated plate S1 and a structure omitting the inner peripheral contact surface 17b. , A configuration in which the non-contact surface 19 surrounding the outer peripheral contact surface 17a is omitted may be adopted.

-In the method for producing a sintered body, at least one of the first step and the second step of the peeling step may be performed using a plurality of brush bodies.
In the method for manufacturing a sintered body, a roll brush is used as the brush body 14, but for example, a disk brush rotated about a rotation axis orthogonal to the plate surface of the laminated plate S1 may be used. In this case, by using a disk brush having an outer shape larger than the outer shape of the laminated plate S1, the peeling step can be performed without relatively moving the brush body and the laminated plate S1. It is also possible to change the brush body to a non-rotatable plate brush.

-In the method for manufacturing a sintered body, even if the brush body 14 (roll brush) is rotated (forward rotation) in the moving direction of the laminated plate S1 by a rotational drive in which the peripheral speed is faster than the moving speed of the laminated plate S1. good.

In the method for manufacturing a sintered body, the holding plate 12 (laminated plate S1) is moved in the first and second stages of the peeling step, but the holding plate 12 is not moved and the brush body 14 (roll brush) is moved. ) May be moved. Even in this case, the same effect as that described in the above column (5) can be obtained. When moving the brush body 14, the moving direction of the laminated plate S1 defined by the relative movement between the holding plate 12 (laminated plate S1) and the roll brush is opposite to the moving direction of the brush body 14.

-In the method for manufacturing a sintered body, a common brush body 14 is used in the first and second stages of the peeling process, but a brush body different from the brush body used in the first stage is used in the second stage. May be good. For example, by arranging the line for performing the first step of the peeling step and the line for performing the second step of the peeling step in series or in parallel, the first step and the second step of the peeling step can be performed. ..

In the method for manufacturing a sintered body, in the first step and the second step of the peeling step, the moving directions of the laminated plates S1 are the same first moving direction D1, but the second step is the first moving direction. It is also possible to move the laminated plate S1 in the second moving direction D2 opposite to D1. Further, in the second stage, when a brush body different from the first stage is used as described above, the laminated plate S1 is moved in a direction different from any of the first moving direction D1 and the second moving direction D2. You can also do it.

In the above method for manufacturing a sintered body, after the laminated plate S1 is held on the holding plate 12, the unnecessary layer SB of the laminated plate S1 is moistened with a release liquid, but the unnecessary layer SB of the laminated plate S1 is peeled off. The laminated plate S1 may be held by the holding plate 12 after being moistened with the liquid.

The laminated plate S1 has unnecessary layers SB on both sides of the sintered body layer SA, but may be a laminated plate having unnecessary layers SB on one side of the sintered body layer SA. That is, in the method for producing a sintered body, the second step of the inversion step and the peeling step may be omitted.

The unnecessary layer SB of the laminated board S1 is a restraining layer laminated on the unsintered laminated board, but the unnecessary layer SB is not limited to the restraining layer, and for example, the main layer SA of the sintered body layer SA is used in the sintering process. It may be an impurity layer precipitated on the surface.

The laminated board S1 has a quadrangular shape in a plan view, but may be changed to a laminated board having a polygonal shape other than the quadrangular shape, a circular shape, or the like.
-In the method for manufacturing the sintered body, at least one of the cleaning step using the cleaning liquid supply unit 23 and the drying step using the drying device 24 can be omitted. For example, the sintered body S2 can be washed in a post-process or naturally dried.

11 ... Sintered body manufacturing equipment, 12 ... Holding plate, 13 ... Release liquid supply unit, 14 ... Brush body, 17a ... Outer peripheral contact surface, 17b ... Inner peripheral contact surface, 19 ... Non-contact surface, D1 ... First movement Direction, P2 ... Peeling part, S1 ... Laminated plate, S2 ... Sintered body, SA ... Sintered body layer, SB ... Unnecessary layer.

Claims (11)

A method for manufacturing a sintered body, which is a method of manufacturing a sintered body from a laminated plate having a sintered body layer and an unnecessary layer.
A peeling step of peeling the unnecessary layer from the sintered body layer at the peeling portion by sliding the brush body against the unnecessary layer moistened with the peeling liquid .
It comprises a cleaning step of cleaning the main surface of the sintered body layer exposed by peeling the unnecessary layer in the peeling step in the post-treatment section .
In the peeling step, the unnecessary layer provided on the other main surface side of the laminated plate is peeled off while the laminated plate is held by the holding plate that sucks one main surface of the laminated plate .
A method for producing a sintered body, characterized in that the cleaning step is performed by moving the holding plate in a state of holding one main surface of the laminated plate from the peeling portion to the post-treatment portion . The method for producing a sintered body according to claim 1, wherein the holding plate has an outer peripheral contact surface that contacts the entire outer peripheral edge of one main surface of the laminated plate. The sintered body according to claim 2, wherein the holding plate is located on the inner peripheral side of the outer peripheral contact surface and further has an inner peripheral contact surface that contacts one main surface of the laminated plate. Manufacturing method. The holding plate is a flat surface continuous with the outer peripheral contact surface, and has a non-contact surface that is non-contact with the laminated plate.
The method for manufacturing a sintered body according to claim 2 or 3, wherein the non-contact surface is arranged so as to surround the outer peripheral contact surface. The brush body is a roll brush that is rotationally driven.
The method for producing a sintered body according to any one of claims 1 to 4, wherein the holding plate and the roll brush are relatively moved. The method for manufacturing a sintered body according to claim 5, wherein the roll brush is rotated against the moving direction of the laminated board defined in the relative movement. The laminated board has unnecessary layers on both sides of the sintered body layer, respectively.
The peeling step includes a first step of peeling one of the unnecessary layers and a second step of peeling the other unnecessary layer.
The brush bodies used in the first step and the second step are the common roll brushes, and the moving directions of the laminated plates defined in the relative movements of the first step and the second step are mutual. The method for producing a sintered body according to claim 5 or 6, wherein the sintered body has the same moving direction. The method for producing a sintered body according to any one of claims 1 to 7, wherein the brush material of the brush body is a polyamide-based resin. The laminated board is obtained by firing the unsintered laminated board of the unsintered laminated board in which the unsintered body layer and the restraining layer for restraining the unsintered body layer are laminated, and the laminated board is obtained. The method for producing a sintered body according to any one of claims 1 to 8, wherein the unnecessary layer is the restraint layer. The method for producing a sintered body according to any one of claims 1 to 9, wherein the thickness of the laminated board is 5 mm or less. A device for manufacturing a sintered body, which manufactures a sintered body from a laminated plate having a sintered body layer and an unnecessary layer.
A peeling portion for peeling the unnecessary layer from the sintered body layer ,
A post-treatment section for cleaning the main surface of the sintered body layer exposed by peeling off the unnecessary layer is provided.
The peeling portion includes a holding plate that attracts one main surface of the laminated plate to hold the laminated plate, and the unnecessary layer provided on the other main surface side of the laminated plate held by the holding plate. A stripping liquid supply unit that supplies the stripping liquid to the surface, and a brush body that is slidably contacted with the unnecessary layer to which the stripping liquid is supplied.
The manufacturing apparatus is a sintered body manufacturing apparatus comprising a moving mechanism for moving the holding plate from the peeling portion to the post-processing portion .

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