WO2020067248A1 - Pièce moulée en céramique non magnétique à base de nitrure dotée, sur sa surface, d'une structure rugueuse, et procédé de fabrication associé - Google Patents

Pièce moulée en céramique non magnétique à base de nitrure dotée, sur sa surface, d'une structure rugueuse, et procédé de fabrication associé Download PDF

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WO2020067248A1
WO2020067248A1 PCT/JP2019/037771 JP2019037771W WO2020067248A1 WO 2020067248 A1 WO2020067248 A1 WO 2020067248A1 JP 2019037771 W JP2019037771 W JP 2019037771W WO 2020067248 A1 WO2020067248 A1 WO 2020067248A1
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molded body
ceramic molded
magnetic ceramic
carbide
laser
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PCT/JP2019/037771
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English (en)
Japanese (ja)
Inventor
清水　潔
雅彦 板倉
法寿 和田
孝之 宇野
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ダイセルポリマー株式会社
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Priority to JP2020501408A priority Critical patent/JP6928741B2/ja
Publication of WO2020067248A1 publication Critical patent/WO2020067248A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching

Definitions

  • the present invention relates to a carbide-based non-magnetic ceramics molded body having a surface roughened structure and a method for producing the same.
  • Non-magnetic ceramics are widely used in various molded products as daily necessities such as tableware, cups, vases, and engineering ceramics, and it is known to perform a process of forming irregularities on the surface according to the application to which they are applied.
  • JP-A-2002-308683 discloses a ceramic member having a concave-convex structure formed with an acidic etching solution.
  • Japanese Patent No. 6032903 describes an invention of a firing setter having a specific uneven structure (claims), and as a material of the firing setter, zirconia, alumina, magnesia, spinel, cordierite, etc. (Paragraph number 0013).
  • WO2011 / 121808 @ A1 includes a base made of metal or ceramic, an impregnated layer provided by forming a concave portion on the sliding side surface of the base, and an impregnated layer impregnated with the base.
  • Examples of the mechanical processing include laser processing and wire cut processing (paragraph number 0014), but there is no description of specific processing conditions, and in the examples, it is described that steel was wire cut. There is no specific description about ceramics.
  • Japanese Patent Application Laid-Open No. 2015-109966 discloses a method for manufacturing a medical device material in which a specific portion of a medical device material containing tetragonal zirconia is coated with calcium phosphate, and the specific portion is irradiated with an ultrashort pulse laser.
  • a method for manufacturing a medical device material comprising: a first step of forming irregularities on the surface by a step; and a second step of depositing or depositing calcium phosphate fine particles smaller than the period of the irregularities on the specific portion. (Claims).
  • Japanese Patent No. 6111102 discloses that a laser beam having a wavelength of 300 to 1500 nm is applied to a portion of a planar shape substantially identical to a circuit pattern on at least one surface of a ceramic substrate containing AlN or Al 2 O 3 as a main component.
  • An aluminum film is formed on a portion of the ceramic substrate having a planar shape substantially the same as the circuit pattern on at least one surface, and a copper plate is disposed on the aluminum film to have a temperature not lower than the eutectic point of aluminum and copper and not higher than 650 ° C.
  • a method of manufacturing a metal-ceramic bonding substrate, characterized by bonding a copper plate to a ceramic substrate via an aluminum film by heating at a temperature, is disclosed.
  • Japanese Patent Application Laid-Open No. 2003-171190 discloses that the surface of a substrate made of dense ceramic having a purity of 95% or more is formed with first rounded irregularities having a surface roughness Ra of 3 to 40 ⁇ m, and the first There is disclosed a ceramic member in which the surface of the unevenness is formed as a second rounded unevenness having a surface roughness Ra of 0.1 to 2.9 ⁇ m. It is shown that the second unevenness covers the entire surface of the first unevenness.
  • JP-A-2003-137677 and JP-A-2004-66299 disclose a technique for forming irregularities by laser processing the surface of a ceramic body.
  • Japanese Patent Nos. 5,774,246 and 5,701,414 disclose an invention in which a continuous wave laser is used to continuously irradiate a laser beam at an irradiation speed of 2,000 mm / sec or more to roughen the surface of a metal molded body. Discloses a method of manufacturing a composite molded article of a metal molded article and a resin molded article, but does not disclose ceramics.
  • One aspect of the present invention is to provide a non-magnetic ceramic molded body having a roughened structure on its surface and a method for producing the same.
  • the present invention in one embodiment thereof, is a non-magnetic ceramic molded body having a surface roughened structure,
  • the roughened structure has irregularities, and the cross-sectional shape in the thickness direction of the irregularities is a curved surface when observed by a scanning electron microscope photograph (200 times or more), and the curved surface of the convex portion has a length. Wrinkle-like projections formed along the direction, or the curved surface of the convex portion has a plurality of independent holes formed linearly along the length direction,
  • a non-magnetic ceramic molded body having a roughened structure on its surface wherein the non-magnetic ceramic molded body is a carbide-based non-magnetic ceramic molded body.
  • the present invention provides a method for producing such a nonmagnetic ceramic molded body.
  • the non-magnetic ceramic molded product according to the embodiment of the present invention has a roughened structure on the surface, and can be used as an intermediate for producing a composite molded product with another material. Therefore, in another aspect, the present invention is also directed to a method for producing such a composite molded article, and a composite molded article.
  • the surface of the originally hard and brittle carbide-based nonmagnetic ceramic molded body can be roughened without being separated into two or more by cracking.
  • the figure which shows the irradiation state of the laser beam of one Embodiment when implementing the 2nd manufacturing method by one example of this invention is a figure which shows the irradiation pattern of the laser beam when implementing the 2nd manufacturing method by one example of this invention, (a) is an irradiation pattern of the same direction, (b) is a bidirectional irradiation pattern.
  • (A) is an SEM photograph (magnification: 200) of the roughened structure portion (plan view) of the silicon carbide molded body of Example 1
  • (b) is a cross-sectional SEM photograph (magnification: 200) of (a) in the thickness direction. is there.
  • FIG. 3 is a perspective view of a carbide-based ceramics molded body manufactured in the example, and a perspective view for describing a test of bonding strength using a composite molded body of a carbide-based ceramics molded body and a resin molded body.
  • the non-magnetic ceramic molded body having a roughened structure on its surface contains a carbide-based non-magnetic ceramic.
  • the carbide-based non-magnetic ceramic molded body may be a molded body containing a carbide-based non-magnetic ceramic such as silicon carbide, titanium carbide, tungsten carbide, and boron carbide. Good.
  • the silicon carbide may be composed of a composite of silicon carbide and other non-magnetic ceramics, metals, and metalloids, as long as it is within a range satisfying a predetermined thermal shock temperature, in addition to being composed of silicon carbide alone.
  • the composite of silicon carbide and a metal may be a porous silicon carbide molded body in which a metal (for example, aluminum) or a metalloid (for example, silicon) is impregnated in the porous interior.
  • the content ratio of silicon carbide in the composite is 50% by mass or more in a preferred embodiment of the present invention, 60% by mass or more in another preferred embodiment of the present invention, and 70% by mass in another preferred embodiment of the present invention. % By mass or more.
  • the predetermined thermal shock temperature (JIS R1648: 2002) is in the range of 400 to 500 ° C. in one preferred embodiment of the present invention, and is in the range of 420 to 480 ° C. in another preferred embodiment of the present invention.
  • the non-magnetic ceramic molded body containing silicon carbide has a thickness of 0.5 mm or more in a preferred embodiment of the present invention, and has a thickness of 0.5 mm or more in another preferred embodiment of the present invention, in order to prevent cracking during processing. Is 1.0 mm or more.
  • the term “crack” in the present invention means that a part of the molded body is broken and divided into two or more, and does not include “crack”.
  • “cracking” also includes a case where it does not crack during processing by laser beam irradiation, but has a remarkably reduced strength and is divided into two or more during subsequent movement and processing.
  • the non-magnetic ceramic molded body having a roughened structure on its surface has a roughened structure having irregularities, and a scanning electron micrograph (200 times or more).
  • the cross-sectional shape in the thickness direction of the unevenness has a curved surface when observed by (1).
  • the cross-sectional shape of the unevenness in the thickness direction may include a partial circular shape or a partial elliptical shape.
  • the partial circular shape is a shape including a part of a circle such as a semicircular shape and a 1/3 circular shape.
  • the partial elliptical shape is a shape including a part of an ellipse such as a semi-elliptical shape and a 1/3 elliptical shape.
  • the non-magnetic ceramic molded body having a roughened structure on its surface according to the present invention may be one in which the irregularities are formed by alternately forming linear projections and linear depressions, and the projections have a curved surface. May be formed, or a plurality of independent holes in which a curved surface of the convex portion is linearly formed along the length direction.
  • the wrinkle-shaped protrusion is a portion slightly protruding outward from a surface having no wrinkle-shaped protrusion.
  • the wrinkle-like projection may be formed continuously in the length direction, for example, but may have a discontinuous portion.
  • the plurality of independent holes formed linearly has a form in which many independent holes are linearly arranged.
  • the wrinkle-like projections and / or the plurality of linearly formed independent holes have a width of 1 to 10 ⁇ m when the width of each of the linear protrusions and the linear recesses is 20 to 100 ⁇ m. May be something.
  • the surface (curved surface) of the convex portion is formed with a plurality of wrinkled protrusions and / or a plurality of independent holes formed linearly along the length direction and the surface area is increased, for example, non-magnetic ceramics
  • the joining area is increased and the joining strength is increased.
  • the recesses of the unevenness of the roughened structure are formed in an island shape and are formed by removing the recesses.
  • the convex portion has a plurality of independent holes in which wrinkle-like protrusions along the length direction and / or curved surfaces of the convex portions are linearly formed along the length direction. Is formed.
  • the wrinkle-shaped protrusion is a portion slightly protruding outward from a surface having no wrinkle-shaped protrusion.
  • the wrinkle-like projection may be formed continuously in the length direction, for example, but may have a discontinuous portion.
  • the plurality of independent holes formed linearly has a form in which many independent holes are linearly arranged.
  • the wrinkle-like projections and / or the plurality of linearly formed independent holes have a width of 1 to 10 ⁇ m when the width of each of the linear protrusions and the linear recesses is 20 to 100 ⁇ m. May be something.
  • a plurality of independent holes are formed on the surface (curved surface) of the convex portion along the length direction and / or a plurality of independent holes in which the curved surface of the convex portion is linearly formed along the length direction. If, for example, the non-magnetic ceramic molded body and another member (for example, a resin molded body) are joined together, it is considered that the joining area is increased and the joining strength is increased.
  • the surface roughness (Ra) of the unevenness is in a range of 2 to 100 ⁇ m in a preferred embodiment of the present invention, and another preferred embodiment of the present invention.
  • the thickness is in the range of 5 to 80 ⁇ m.
  • the height difference (Rz) between the convex portion and the concave portion of the unevenness is in the range of 10 to 200 ⁇ m in a preferred embodiment of the present invention.
  • the thickness is in the range of 20 to 150 ⁇ m, and in still another preferred embodiment of the present invention, the thickness is in the range of 20 to 100 ⁇ m.
  • Sa (arithmetic average height), Sz (maximum height), and Str (surface texture) of the roughened structure portion (irregularities).
  • Sz maximum height
  • Str surface texture of the roughened structure portion (irregularities). Aspect ratio) may be in the following range.
  • Sa (arithmetic mean height) is 2 to 100 ⁇ m in a preferred embodiment of the present invention, 5 to 80 ⁇ m in another preferred embodiment of the present invention, and 10 to 50 ⁇ m in still another preferred embodiment of the present invention. It is.
  • Sz (maximum height) is 10 to 300 ⁇ m in one preferred embodiment of the present invention, 20 to 200 ⁇ m in another preferred embodiment of the present invention, and 20 to 150 ⁇ m in still another preferred embodiment of the present invention. is there.
  • Sdr interface area development ratio
  • the surface roughness (Ra) of the projections of the irregularities is in the range of 1 to 10 ⁇ m in a preferred embodiment of the present invention, and is in the range of 1.5 to 8 ⁇ m in another preferred embodiment of the present invention. In still another preferred embodiment, the thickness is in the range of 2 to 8 ⁇ m.
  • the height difference (Rz) between the convex portion and the concave portion of the unevenness is in a range of 5 to 50 ⁇ m in a preferred embodiment of the present invention, and in a range of 8 to 40 ⁇ m in another preferred embodiment of the present invention.
  • the thickness is in the range of 10 to 30 ⁇ m.
  • Sa (arithmetic average height), Sz (maximum height), and Str (surface aspect ratio) of the roughened structure portion (irregularities) may be in the following ranges.
  • Sa (arithmetic mean height) is 1 to 10 ⁇ m in a preferred embodiment of the present invention, 1.5 to 8 ⁇ m in another preferred embodiment of the present invention, and 2 in still another preferred embodiment of the present invention. ⁇ 8 ⁇ m.
  • Sz (maximum height) is 8 to 40 ⁇ m in one preferred embodiment of the present invention, 10 to 30 ⁇ m in another preferred embodiment of the present invention, and 100 to 180 ⁇ m in still another preferred embodiment of the present invention. is there.
  • Sdr interface development area ratio
  • the non-magnetic ceramic molded body can be used as a carrier capable of holding a liquid, a powder, and the like on the roughened structure portion, and can be made of another material (a carbide-based non-magnetic material). It can also be used as a production intermediate for producing a composite molded body with a molded body made of a material excluding magnetic ceramics).
  • the non-magnetic ceramic molded body according to one embodiment of the present invention is characterized in that the surface of the carbide-based non-magnetic ceramic molded body is continuously irradiated with a laser beam at an irradiation speed of 5,000 mm / sec or more using a continuous wave laser. It can be manufactured by irradiation.
  • carbide-based nonmagnetic ceramic molded body used in the production method according to one embodiment of the present invention are not particularly limited, and are selected according to the application and adjusted as necessary. Is what is done.
  • carbide-based non-magnetic ceramic molded bodies include flat plates, round bars, square bars (bars with a polygonal cross section), tubes, cups, cubes, cuboids, spheres or partial spheres (such as hemispheres), and elliptical spheres
  • an existing nonmagnetic ceramic product can be used.
  • the existing carbide-based non-magnetic ceramics products include, in addition to those composed of only carbide-based non-magnetic ceramics, composites of carbide-based non-magnetic ceramics and other materials (metal, resin, rubber, glass, wood, etc.). It may be.
  • a continuous wave laser when used to continuously irradiate the surface of a carbide-based non-magnetic ceramic molded body with a laser beam at an irradiation speed of 5,000 mm / sec or more,
  • the laser beam can be continuously irradiated so that a plurality of lines composed of straight lines, curves, and combinations thereof are formed in different directions.
  • the laser beam when continuously irradiating the surface of the carbide-based nonmagnetic ceramic molded body with a continuous wave laser at an irradiation speed of 5,000 mm / sec or more, the laser beam is irradiated in the same direction.
  • continuously irradiate laser light so as to form a plurality of lines composed of straight lines, curves and combinations thereof in different directions, and form one straight line or one curved line by continuously irradiating laser light a plurality of times. can do.
  • the laser beam when continuously irradiating the surface of the carbide-based nonmagnetic ceramic molded body with a continuous wave laser at an irradiation speed of 5,000 mm / sec or more, the laser beam is irradiated in the same direction.
  • a laser beam is continuously irradiated so that a plurality of lines composed of straight lines, curves and combinations thereof are formed in different directions, and the plurality of straight lines or the plurality of curves are spaced at equal intervals or different intervals.
  • Laser light can be continuously applied so as to be formed.
  • the irradiation speed of the laser beam may be 5,000 mm / sec or more in order to roughen the carbide-based nonmagnetic ceramic molded body.
  • the irradiation speed is 5,000 to 20,000 mm / sec. Yes, in another preferred embodiment of the present invention, it is 5,000 to 10,000 mm / sec. If the irradiation speed of the laser beam is less than 5,000 mm / sec, it is difficult to form a roughened structure on the surface of the non-magnetic ceramic molded body.
  • the power of the laser is 50 to 4,000 W in a preferred embodiment of the present invention, 100 to 2,000 W in another preferred embodiment of the present invention, and 100 to 2,000 W in still another preferred embodiment of the present invention.
  • 5,000W Adjust the surface roughening state by decreasing the laser light output when the laser light irradiation speed is low within the above range and increasing it when the laser light irradiation speed is high within the above range. Can be.
  • the irradiation speed of the laser beam is 5,000 to 7,500 mm / sec.
  • the irradiation speed of the laser beam may be 7,500 to 10,000 mm / sec.
  • the spot diameter of the laser beam is 10 to 100 ⁇ m in one preferred embodiment of the present invention, and 10 to 75 ⁇ m in another preferred embodiment of the present invention.
  • the energy density at the time of laser beam irradiation is 3 to 1500 MW / cm 2 in a preferred embodiment of the present invention, and 5 to 700 MW / cm 2 in another preferred embodiment of the present invention.
  • the energy density at the time of laser beam irradiation is calculated by the following formula from the output (W) of the laser beam and the laser beam (spot area (cm 2 ) ( ⁇ ⁇ [spot diameter / 2] 2 ): laser beam output / spot area. Desired.
  • the number of repetitions (the number of passes) at the time of laser beam irradiation is 1 to 30 times in a preferred embodiment of the present invention, 3 to 25 times in another preferred embodiment of the present invention, and 5 in still another preferred embodiment of the present invention. ⁇ 20 times.
  • the number of repetitions at the time of laser light irradiation is the total number of times of irradiation for forming one line (groove) when laser light is irradiated linearly.
  • bidirectional irradiation and unidirectional irradiation can be selected.
  • bidirectional radiation irradiates a continuous wave laser from the first end to the second end of the line (groove) and then from the second end to the first end.
  • One-way irradiation is a method of repeating one-way continuous-wave laser irradiation from a first end to a second end.
  • the interval (line interval or pitch interval) between the intermediate positions of the widths of the adjacent irradiation lines (grooves formed by the adjacent irradiation) is set to 0.1 in a preferred embodiment of the present invention.
  • the line intervals may be the same or different.
  • the above-mentioned line Cross irradiation in which bidirectional irradiation or unidirectional irradiation is performed at intervals may be performed.
  • the wavelength of the laser beam is 300 to 1200 nm in one preferred embodiment of the present invention, and 500 to 1200 nm in another preferred embodiment of the present invention.
  • the defocusing distance when irradiating the laser beam is -5 to +5 mm in a preferred embodiment of the present invention, and -1 to +1 mm in another preferred embodiment of the present invention. In the embodiment, it is -0.5 to +0.1 mm.
  • laser irradiation may be performed with the set value kept constant, or laser irradiation may be performed while changing the defocusing distance. For example, at the time of laser irradiation, the defocus distance may be gradually reduced, or may be periodically increased or decreased.
  • a known continuous wave laser can be used, for example, a YVO4 laser, a fiber laser (preferably a single mode fiber laser), an excimer laser, a carbon dioxide laser, an ultraviolet laser, a YAG laser, a semiconductor laser, a glass laser, and ruby.
  • Lasers, He-Ne lasers, nitrogen lasers, chelate lasers, and dye lasers can be used.
  • a fiber laser is preferable, and a single mode fiber laser is particularly preferable, because the energy density is increased.
  • the second method for producing a carbide-based non-magnetic ceramic molded body having a roughened structure on the surface is different from the above-mentioned first method in the irradiation form of laser light. Others are the same.
  • a laser beam is applied to the surface of the carbide-based non-magnetic ceramic molded body at an irradiation speed of 5,000 mm / sec or more using a continuous wave laser in the same manner as in the first manufacturing method.
  • the irradiation is performed so that the irradiated part and the non-irradiated part of the laser light alternately occur.
  • the laser beam when irradiating a laser beam so as to form a straight line, a curve, or a combination of a straight line and a curve, the laser beam is irradiated so that a portion irradiated with the laser beam and a non-irradiated portion alternate.
  • Irradiation such that laser light irradiation parts and non-irradiation parts are generated alternately includes the embodiment of irradiation as shown in FIG. FIG.
  • a non-irradiated portion 12 of a laser beam having a length L2 is alternately generated between an irradiated portion 11 of a laser beam having a length L1 and an adjacent irradiated portion 11 of a laser beam having a length L1.
  • An irradiation state is shown so as to form a dotted line.
  • the dotted line also includes a chain line such as a one-dot chain line or a two-dot chain line.
  • the laser light irradiation part When irradiating a plurality of times, the laser light irradiation part may be the same, or the laser light irradiation part may be different (the laser light irradiation part is shifted), so that the whole non-magnetic ceramics molded body of the carbide system is formed. May be roughened.
  • the laser beam When the laser beam is irradiated multiple times with the same part irradiated, the laser beam is irradiated in a dotted line, but the laser light irradiated part is shifted, that is, the laser light is first irradiated to the part that was not irradiated with the laser light.
  • the number of repetitions can be 1 to 20 times.
  • the method of irradiating the laser beam is, for example, a method of irradiating the surface of the metal molded body 20 in one direction as shown in FIG. 2A, or a method of irradiating bidirectionally as shown by a dotted line in FIG.
  • the method can be used.
  • a method of irradiating the laser beam so that the dotted lines irradiate with each other may be used.
  • the interval b1 between the dotted lines after the irradiation can be adjusted according to the irradiation target area of the metal molded body or the like, but can be in the same range as the line interval in the first manufacturing method.
  • the length (L1) of the irradiated portion 11 of the laser beam is 0.05 mm or more in a preferred embodiment of the present invention in order to roughen the surface into a complicated porous structure, and is 0 in another preferred embodiment of the present invention. 0.1 to 10 mm, and in still another preferred embodiment of the present invention 0.3 to 7 mm.
  • the laser light irradiation step described above is a fiber laser apparatus in which a direct modulation type modulator for directly converting a drive current of a laser is connected to a laser power supply. Is used to adjust the duty ratio (duty ratio) to perform laser irradiation.
  • a pulse wave laser by pulse excitation is generally called a normal pulse.
  • a pulse wave laser can be produced even with continuous excitation, and a pulse width (pulse ON time) is made shorter than a normal pulse, and a Q switch pulse oscillation method for oscillating a laser having a higher peak power is used.
  • a pulse wave laser can be produced by a direct modulation method in which a pulse wave laser is generated by directly modulating a pulse wave laser.
  • the method of pulsing by operating the galvanomirror is a method of irradiating a laser beam oscillated from a laser oscillator via a galvanomirror by a combination of a galvanomirror and a galvanomirror, specifically, as follows. Can be implemented.
  • a gate signal is periodically output ON / OFF from a galvano controller, and the laser light oscillated by a laser oscillator is turned ON / OFF by the ON / OFF signal, thereby pulsating the laser light without changing the energy density of the laser light. be able to.
  • the laser light irradiation portions 11 and the non-laser light non-irradiation portions 12 between the adjacent laser light irradiation portions 11 are alternately formed, and are formed in a dotted line as a whole. Can be irradiated with laser light.
  • the method of pulsing by operating the galvanometer mirror is simple in operation because the duty ratio can be adjusted without changing the oscillation state of the laser light itself.
  • a method of pulsing by chopping, a method of pulsing by operating a galvanomirror, and a direct modulation method of directly modulating a driving current of a laser to generate a pulse wave laser may be used.
  • a fiber laser device in which a direct modulation type modulation device that directly converts the driving current of the laser is connected to a laser power supply the laser is continuously excited to generate a pulsed laser. May be produced.
  • the duty ratio is a ratio obtained from the ON time and the OFF time of the output of the laser light by the following equation.
  • Duty ratio (%) ON time / (ON time + OFF time) ⁇ 100 Since the duty ratio corresponds to L1 and L2 (that is, L1 / [L1 + L2]) shown in FIG. 1, the duty ratio can be selected, for example, from the range of 10 to 90%. By adjusting the duty ratio and irradiating the laser light, it is possible to irradiate in a dotted line as shown in FIG.
  • a method for producing a composite molded article of a carbide-based nonmagnetic ceramic molded article having a roughened structure and a resin molded article In the first step, the surface is formed by the above-described first production method or second production method. A non-magnetic ceramic molded body having a roughened structure is manufactured.
  • a portion including the roughened structure of the carbide-based nonmagnetic ceramics molded body having a roughened structure on the surface obtained in the first step is arranged in a mold to form the resin molded body.
  • Compression molding is performed in a state where the portion including the structure and the resin to be the resin molded body are in contact with each other.
  • the resin used in the second step includes thermoplastic elastomers in addition to thermoplastic resins and thermosetting resins.
  • the thermoplastic resin can be appropriately selected from known thermoplastic resins depending on the application.
  • copolymers containing styrene units such as polyamide resins (aliphatic polyamides and aromatic polyamides such as PA6 and PA66), polystyrene, ABS resins, AS resins, etc., polyethylene, copolymers containing ethylene units, polypropylene, propylene
  • Examples include copolymers containing units, other polyolefins, polyvinyl chloride, polyvinylidene chloride, polycarbonate resins, acrylic resins, methacrylic resins, polyester resins, polyacetal resins, and polyphenylene sulfide resins.
  • thermosetting resin can be appropriately selected from known thermosetting resins depending on the application. For example, urea resin, melamine resin, phenol resin, resorcinol resin, epoxy resin, polyurethane, and vinyl urethane can be mentioned.
  • a thermosetting resin a prepolymer form can be used, and a heat curing treatment can be performed in a later step.
  • thermoplastic elastomer can be appropriately selected from known thermoplastic elastomers depending on the application. For example, styrene elastomers, vinyl chloride elastomers, olefin elastomers, urethane elastomers, polyester elastomers, nitrile elastomers, and polyamide elastomers can be used.
  • a known fibrous filler can be blended with these thermoplastic resins, thermosetting resins, and thermoplastic elastomers.
  • Known fibrous fillers include carbon fibers, inorganic fibers, metal fibers, and organic fibers.
  • the carbon fibers are well-known, and PAN-based, pitch-based, rayon-based, and lignin-based carbon fibers can be used.
  • the inorganic fibers include glass fibers, basalt fibers, silica fibers, silica / alumina fibers, zirconia fibers, boron nitride fibers, and silicon nitride fibers.
  • the metal fibers include fibers made of stainless steel, aluminum, copper, and the like.
  • polyamide fibers whole aromatic polyamide fibers, semi-aromatic polyamide fibers in which one of diamine and dicarboxylic acid is an aromatic compound, aliphatic polyamide fibers), polyvinyl alcohol fibers, acrylic fibers, polyolefin fibers, Synthetic fiber such as polyoxymethylene fiber, polytetrafluoroethylene fiber, polyester fiber (including wholly aromatic polyester fiber), polyphenylene sulfide fiber, polyimide fiber, liquid crystal polyester fiber, natural fiber (cellulose fiber, etc.) and regenerated cellulose ( Rayon) fiber or the like can be used.
  • synthetic fiber such as polyoxymethylene fiber, polytetrafluoroethylene fiber, polyester fiber (including wholly aromatic polyester fiber), polyphenylene sulfide fiber, polyimide fiber, liquid crystal polyester fiber, natural fiber (cellulose fiber, etc.) and regenerated cellulose ( Rayon) fiber or the like can be used.
  • these fibrous fillers those having a fiber diameter in the range of 3 to 60 ⁇ m can be used. Among them, for example, open holes formed by roughening the bonding surface 12 of the metal molded body 10 are described. A fiber having a fiber diameter smaller than the opening diameter, such as 30, can be used. The fiber diameter is 5 to 30 ⁇ m in one preferred embodiment of the present invention, and 7 to 20 ⁇ m in another preferred embodiment of the present invention.
  • the blending amount of the fibrous filler with respect to 100 parts by mass of the thermoplastic resin, the thermosetting resin, or the thermoplastic elastomer is 5 to 250 parts by mass in a preferred embodiment of the present invention, and 25 to 200 parts in another preferred embodiment of the present invention. Parts by mass, in another preferred embodiment of the present invention, from 45 to 150 parts by mass.
  • the surface is formed by the first production method or the second production method.
  • a non-magnetic ceramic molded body having a roughened structure is manufactured.
  • the carbide-based nonmagnetic ceramic molded body and the rubber molded body obtained in the first step are integrated by applying a known molding method such as press molding or transfer molding.
  • a portion including a roughened structure of a carbide-based nonmagnetic ceramics molded body is arranged in a mold, and heating and heating are performed on the portion including the roughened structure. After the uncured rubber to be the rubber molded body is pressed in a pressurized state, it is taken out after cooling.
  • a portion including a roughened structure of a carbide-based non-magnetic ceramic molded body is arranged in a mold, and the uncured rubber is injection-molded in the mold, and thereafter, By heating and pressurizing, the part including the roughened structure of the carbide-based nonmagnetic ceramic molded body and the rubber molded body are integrated, and after cooling, they are taken out.
  • a step of secondary heating (secondary curing) in an oven or the like after removal from the mold can be added in order to mainly remove residual monomers.
  • the rubber of the rubber molded body used in this step is not particularly limited, and a known rubber can be used, but does not include a thermoplastic elastomer.
  • Known rubbers include ethylene-propylene copolymer (EPM), ethylene-propylene-diene terpolymer (EPDM), ethylene-octene copolymer (EOM), ethylene-butene copolymer (EBM), ethylene-octene terpolymer (EODM), Ethylene- ⁇ -olefin rubbers such as ethylene-butene terpolymer (EBDM); Ethylene / acrylic acid rubber (EAM), polychloroprene rubber (CR), acrylonitrile-butadiene rubber (NBR), hydrogenated NBR (HNBR), styrene-butadiene rubber (SBR), alkylated chlorosulfonated polyethylene (ACSM), epichlorohydrin (ECO), polybutadiene rubber (BR), natural rubber
  • the rubber may contain a curing agent according to the type of the rubber, if necessary.
  • various known rubber additives can be blended. Rubber additives include curing accelerators, anti-aging agents, silane coupling agents, reinforcing agents, flame retardants, ozone deterioration inhibitors, fillers, process oils, plasticizers, tackifiers, and processing aids. Can be used.
  • an adhesive layer can be interposed at the joint surface between the carbide-based non-magnetic ceramic molded article and the rubber molded article.
  • a carbide-based non-magnetic ceramic molded body is roughened using a continuous wave laser in the same manner as in the above method.
  • an adhesive adheresive solution
  • the adhesive may be press-fitted.
  • the adhesive is not particularly limited, and a known thermoplastic adhesive, thermosetting adhesive, rubber-based adhesive, or the like can be used.
  • the thermoplastic adhesive include polyvinyl acetate, polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, acrylic adhesive, polyethylene, chlorinated polyethylene, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene -Ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ionomer, chlorinated polypropylene, polystyrene, polyvinyl chloride, plastisol, vinyl chloride-vinyl acetate copolymer, polyvinyl ether, polyvinylpyrrolidone, polyamide, nylon, non-saturated Fixed polyesters and cellulose derivatives can be mentioned.
  • thermosetting adhesive examples include urea resin, melamine resin, phenol resin, resorcinol resin, epoxy resin, polyurethane, and vinyl urethane.
  • rubber adhesives include natural rubber, synthetic polyisoprene, polychloroprene, nitrile rubber, styrene-butadiene rubber, styrene-butadiene-vinylpyridine terpolymer, polyisobutylene-butyl rubber, polysulfide rubber, silicone RTV, Examples include chlorinated rubber, brominated rubber, kraft rubber, block copolymer, and liquid rubber.
  • a rubber molded body separately molded is bonded to the surface of the carbide-based nonmagnetic ceramic molded body on which the adhesive layer was formed in the previous step, or
  • the part including the surface of the carbide-based non-magnetic ceramic molded body with the agent layer formed was placed in the mold, and the surface of the carbide-based non-magnetic ceramic molded body was brought into contact with the uncured rubber to be the rubber molded body.
  • a step of integrating by heating and pressing in a state is performed. In the case of this step, a step of secondary heating (secondary curing) in an oven or the like after removal from the mold can be added to remove mainly residual monomers.
  • the roughened structure is formed by the first manufacturing method or the second manufacturing method.
  • the first manufacturing method or the second manufacturing method To produce a carbide-based non-magnetic ceramic molded article having the following.
  • the second step the roughened carbide-based non-magnetic ceramic molded body is placed in the mold such that the surface including the porous structure portion faces upward. Thereafter, the metal in a molten state is poured into a mold by, for example, a known die casting method, and then cooled.
  • the metal used is not limited as long as it has a melting point lower than the melting point of the carbide-based non-magnetic ceramic constituting the carbide-based non-magnetic ceramic molded body.
  • a metal according to the use of the composite molded body such as iron, aluminum, an aluminum alloy, gold, silver, platinum, copper, magnesium, titanium or an alloy thereof, and stainless steel.
  • the metal molded body is pressed against the adhesive layer of the carbide-based non-magnetic ceramic molded body having the adhesive layer to be bonded and integrated.
  • the adhesive layer is made of a thermoplastic resin-based adhesive
  • the adhesive layer can be adhered to the adhesive surface of the non-metal molded body in a state where the adhesive layer is softened by heating as necessary.
  • the adhesive layer is made of a thermosetting resin-based adhesive prepolymer, the prepolymer is heated and cured by being left in a heating atmosphere after bonding.
  • a monomer, an oligomer or a mixture thereof for forming a UV-curable resin layer is brought into contact with the portion including the roughened portion of the carbide-based non-magnetic ceramic molded body (monomer, oligomer or Contacting those mixtures).
  • a step of applying the monomer, the oligomer or the mixture thereof to a portion including the roughened portion of the carbide-based non-magnetic ceramic molded body can be performed.
  • brush coating, application using a doctor blade, roller application, casting, potting, and the like can be used alone or in combination.
  • the portion including the roughened portion of the carbide-based nonmagnetic ceramic molded body is surrounded by a mold, and the monomer, the oligomer or the mixture thereof is placed in the mold.
  • An injecting step can be performed.
  • the step of contacting the monomer, the oligomer or the mixture thereof includes the steps of: placing the carbide-based non-magnetic ceramic molded body in a mold with the roughened portion facing upward; Can be performed.
  • the monomer, oligomer or mixture thereof enters the porosity of the roughened portion of the carbide-based non-magnetic ceramic molded body.
  • the form in which the monomer, oligomer or mixture thereof enters the porosity is, for example, 50% or more of the whole pores in a preferred embodiment of the present invention, 70% or more in another preferred embodiment of the present invention, and still another preferred embodiment of the present invention. In one embodiment, 80% or more, and in still another preferred embodiment of the present invention, 90% or more of the pores contain the monomer, oligomer or mixture thereof, and the monomer, oligomer or mixture thereof enters the bottom of the pore.
  • the form includes a form in which a monomer, an oligomer, or a mixture thereof enters into a partway depth of the pore, and a form in which a form in which a monomer, an oligomer, or a mixture thereof enters only near the entrance of the hole.
  • Monomers, oligomers or mixtures thereof can be applied or injected as they are in liquid form (including low-viscosity gels) at room temperature or in the form of a solution dissolved in a solvent.
  • Solid (powder) forms can be heated. It can be applied or poured after being melted or dissolved in a solvent.
  • the monomer, oligomer or mixture thereof used in the step of contacting the monomer, oligomer or mixture thereof is selected from a radical polymerizable monomer and an oligomer of a radical polymerizable monomer, or is a cation polymerizable monomer and a cation of the monomer. It may be one selected from polymerizable monomer oligomers or a mixture of two or more selected from them.
  • radical polymerizable monomer As the radical polymerizable compound, a radical polymerizable group such as a (meth) acryloyl group, a (meth) acryloyloxy group, a (meth) acryloylamino group, a vinyl ether group, a vinylaryl group, and a vinyloxycarbonyl group is contained in one molecule. Compounds having at least one compound are exemplified.
  • Compounds having one or more (meth) acryloyl groups in one molecule include 1-buten-3-one, 1-penten-3-one, 1-hexen-3-one, 4-phenyl-1-butene- 3-one, 5-phenyl-1-penten-3-one and the like, and derivatives thereof.
  • Examples of the compound having at least one (meth) acryloyloxy group in one molecule include methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, and t-butyl (meth).
  • Compounds having one or more (meth) acryloylamino groups in one molecule include 4- (meth) acryloylmorpholine, N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide, N-methyl (Meth) acrylamide, N-ethyl (meth) acrylamide, N-propyl (meth) acrylamide, N-isopropyl (meth) acrylamide, N-butyl (meth) acrylamide, Nn-butoxymethyl (meth) acrylamide, N- Hexyl (meth) acrylamide, N-octyl (meth) acrylamide, and the like, and derivatives thereof are given.
  • Compounds having one or more vinyl ether groups in one molecule include, for example, 3,3-bis (vinyloxymethyl) oxetane, 2-hydroxyethyl vinyl ether, 3-hydroxypropyl vinyl ether, 2-hydroxypropyl vinyl ether, 2-hydroxy Isopropyl vinyl ether, 4-hydroxybutyl vinyl ether, 3-hydroxybutyl vinyl ether, 2-hydroxybutyl vinyl ether, 3-hydroxyisobutyl vinyl ether, 2-hydroxyisobutyl vinyl ether, 1-methyl-3-hydroxypropyl vinyl ether, 1-methyl-2-hydroxy Propyl vinyl ether, 1-hydroxymethylpropyl vinyl ether, 4-hydroxycyclohexyl vinyl ether, 1,6-hexanediol Novinyl ether, 1,4-cyclohexane dimethanol monovinyl ether, 1,3-cyclohexane dimethanol monovinyl ether, 1,2-cyclohexane dimethanol monovinyl ether, p-xylene glycol mono
  • Examples of the compound having one or more vinylaryl groups in one molecule include styrene, divinylbenzene, methoxystyrene, ethoxystyrene, hydroxystyrene, vinylnaphthalene, vinylanthracene, 4-vinylphenyl acetate, and (4-vinylphenyl) dihydroxyborane. , N- (4-vinylphenyl) maleimide, and derivatives thereof.
  • Compounds having one or more vinyloxycarbonyl groups in one molecule include isopropenyl formate, isopropenyl acetate, isopropenyl propionate, isopropenyl butyrate, isopropenyl isobutyrate, isopropenyl caproate, isopropenyl valerate, Isopropenyl valerate, isopropenyl lactate, vinyl acetate, vinyl propionate, vinyl butyrate, vinyl caproate, vinyl caprylate, vinyl laurate, vinyl myristate, vinyl palmitate, vinyl stearate, vinyl cyclohexanecarboxylate, pivalic acid Vinyl, vinyl octylate, vinyl monochloroacetate, divinyl adipate, vinyl acrylate, vinyl methacrylate, vinyl crotonate, vinyl sorbate, vinyl benzoate, vinyl cinnamate, and the like Body and the like.
  • cationic polymerizable monomer examples include compounds having one or more cationic polymerizable groups in one molecule other than an oxetanyl group such as an epoxy ring (oxiranyl group), a vinyl ether group, and a vinyl aryl group.
  • Compounds having one or more epoxy rings in one molecule include glycidyl methyl ether, bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, brominated bisphenol A diglycidyl ether, and brominated bisphenol F diglycidyl ether.
  • Polyglycidyl ethers of polyether polyols diglycidyl esters of aliphatic long-chain dibasic acids; monoglycidyl ethers of aliphatic higher alcohols; phenol, cresol, butylphenol or polyether alcohols obtained by adding alkylene oxide thereto Monoglycidyl ethers; and glycidyl esters of higher fatty acids.
  • Examples of the compound having one or more vinyl ether groups in one molecule and the compound having one or more vinyl aryl groups in one molecule include the same compounds as the compounds exemplified as the radical polymerizable compound.
  • Compounds having one or more oxetanyl groups in one molecule include trimethylene oxide, 3,3-bis (vinyloxymethyl) oxetane, 3-ethyl-3-hydroxymethyloxetane, 3-ethyl-3- (2-ethylhexyloxymethyl) oxetane, 3-ethyl-3- (hydroxymethyl) oxetane, 3-ethyl-3-[(phenoxy) methyl] oxetane, 3-ethyl-3- (hexyloxymethyl) oxetane, 3- Ethyl-3- (chloromethyl) oxetane, 3,3-bis (chloromethyl) oxetane, 1,4-bis [(3-ethyl-3-oxetanylmethoxy) methyl] benzene, bis ⁇ [1-ethyl (3- Oxetanyl)] methyl ⁇ ether, 4,4'-bis [
  • the oligomer of the radical polymerizable monomer and the cationic polymerizable monomer includes a monofunctional or polyfunctional (meth) acrylic oligomer.
  • a monofunctional or polyfunctional (meth) acrylic oligomer One type or a combination of two or more types can be used.
  • Monofunctional or polyfunctional (meth) acrylic oligomers include urethane (meth) acrylate oligomers, epoxy (meth) acrylate oligomers, polyether (meth) acrylate oligomers, and polyester (meth) acrylate oligomers.
  • Examples of the urethane (meth) acrylate oligomer include polycarbonate-based urethane (meth) acrylate, polyester-based urethane (meth) acrylate, polyether-based urethane (meth) acrylate, and caprolactone-based urethane (meth) acrylate.
  • the urethane (meth) acrylate oligomer can be obtained by reacting an isocyanate compound obtained by reacting a polyol with diisocyanate and a (meth) acrylate monomer having a hydroxyl group.
  • Examples of the polyol include a polycarbonate diol, a polyester polyol, a polyether polyol, and a polycaprolactone polyol.
  • the epoxy (meth) acrylate oligomer is obtained, for example, by an esterification reaction between an oxirane ring of a low molecular weight bisphenol type epoxy resin or a novolak epoxy resin and acrylic acid.
  • the polyether (meth) acrylate oligomer is obtained by obtaining a polyether oligomer having hydroxyl groups at both terminals by a dehydration condensation reaction of a polyol, and then esterifying the hydroxyl groups at both terminals with acrylic acid.
  • the polyester (meth) acrylate oligomer is obtained, for example, by obtaining a polyester oligomer having hydroxyl groups at both ends by condensation of a polycarboxylic acid and a polyol, and then esterifying the hydroxyl groups at both ends with acrylic acid.
  • the weight average molecular weight of the monofunctional or polyfunctional (meth) acrylic oligomer is 100,000 or less in a preferred embodiment of the present invention, and is 500 to 50,000 in another preferred embodiment of the present invention.
  • a photopolymerization initiator can be used with respect to 100 parts by mass of the monomers, oligomers or mixture thereof.
  • the monomer, oligomer or mixture thereof in contact with the portion including the roughened portion of the carbide-based non-magnetic ceramic molded body is cured by irradiating UV to cure the resin, and has a curable resin layer.
  • a composite molded article can be obtained.
  • a method of manufacturing a molded article A composite molded article of a carbide-based nonmagnetic ceramic molded article having a roughened structure uses, for example, a plurality of carbide-based nonmagnetic ceramic molded articles having a roughened structure having different shapes. It can be manufactured by joining and integrating through an adhesive layer formed on the joining surface.
  • the adhesive layer can be formed by, for example, applying an adhesive to a roughened structure portion of a carbide-based nonmagnetic ceramic molded body.
  • the adhesive the same adhesive as that used in the production of the other composite molded body described above can be used.
  • a composite molded body composed of a nonmagnetic ceramic molded body of a different type from a carbide-based nonmagnetic ceramic molded body can be manufactured in the same manner.
  • the surface of the ceramic molded body also has a roughened structure to form an adhesive layer, and then has an adhesive layer of a non-magnetic ceramic molded body of a different type from the surface of the carbide-based nonmagnetic ceramic molded body that has the adhesive layer
  • the composite molded body can be manufactured by joining and integrating the surfaces.
  • non-magnetic ceramics include oxides, nitrides, borides, and silicides.
  • methods for roughening the surface of different types of non-magnetic ceramic molded bodies the methods and conditions differ depending on the type of non-magnetic ceramics. For example, as in the present invention, a method of irradiating a laser beam, filing, blasting A method of roughening by processing, etching, or the like can be applied.
  • the thermal shock temperature is a temperature at which a heated test piece (4 ⁇ 35 ⁇ 3 mm in thickness) of a carbide-based nonmagnetic ceramic molded body is broken when immersed in water at 30 ° C. When the internal stress generated by the temperature difference between the inside and the surface when cooled rapidly exceeds the strength of the test piece, it is destroyed.
  • Ra (arithmetic mean roughness): Eleven 1.5 mm long lines are drawn on the surface of the roughened structure portion of the carbide-based non-magnetic ceramic molded body, and those Ra are measured by a one-shot 3D shape measuring instrument (Keyence Corporation). Manufactured).
  • Rz maximum height: 11 lines of 1.5 mm length are drawn on the surface of the roughened structure portion of the carbide-based non-magnetic ceramic molded body, and those Rz are measured by a one-shot 3D shape measuring machine (manufactured by Keyence Corporation). ).
  • Sa (arithmetic mean height): Sa in a range of 9 ⁇ 1.8 mm on the surface of the roughened structure portion of the carbide-based nonmagnetic ceramic molded body was measured by a one-shot 3D shape measuring instrument (manufactured by Keyence).
  • Sz (maximum height) Sz in the range of 9 ⁇ 1.8 mm of the surface of the roughened structure portion of the carbide-based nonmagnetic ceramic molded body was measured by a one-shot 3D shape measuring instrument (manufactured by Keyence).
  • Str (Aspect ratio of surface texture): Indicates the isotropic and anisotropy of the surface texture, and is shown in the range of 0 to 1. If Str is close to 0, it indicates that the surface is not direction-dependent, and if Str is close to 1, the surface does not depend on the direction. Str was measured by a one-shot 3D shape measuring machine (manufactured by Keyence).
  • Examples 1 to 3 Comparative Example 1
  • the surface of a nonmagnetic ceramic molded body (10 ⁇ 50 ⁇ 2 mm thick plate) of the type shown in Table 1 was continuously irradiated with laser light under the conditions shown in Table 1 using the continuous wave laser device described below. And roughened.
  • trade name SA701 Nippon Fine Ceramics Co., Ltd.
  • trade name SS501 Nippon Fine Ceramics Co., Ltd.
  • the bidirectional irradiation was performed as follows. Bidirectional irradiation: After irradiating continuous wave laser light linearly so that one groove is formed in one direction, continuous wave laser light is linearly irradiated in the opposite direction at an interval of 0.05 mm. Irradiation was repeated.
  • the 0.05 mm spacing for bidirectional irradiation is the distance between the intermediate positions of the width of adjacent grooves.
  • FIGS. 3 to 5 and 6 show SEM photographs of portions of the non-magnetic ceramic molded bodies of Examples 1 to 3 and Comparative Example 1 having a roughened structure.
  • Example 1 the bonding strength between the non-magnetic ceramic molded article and the resin molded article was measured.
  • Tensile test Using the composite molded article shown in FIG. 7, a tensile test was performed to evaluate the shear bonding strength (S1). Tensile test is based on ISO 19095, with the non-magnetic ceramic molded body 30 fixed at the end, and pulled in the X direction shown in FIG. 7 until the non-magnetic ceramic molded body 30 and the resin molded body 31 are broken. The maximum load until the joint surface was destroyed was measured. Table 1 shows the results. ⁇ Tensile test conditions> Testing machine: AUTOGRAPH AG-X plus (50kN) manufactured by Shimadzu Corporation Tensile speed: 10 mm / min Distance between grips: 50mm
  • the carbide-based non-magnetic ceramic molded body having a surface roughened structure of the present invention is used as an intermediate for producing a composite molded body of a carbide-based non-magnetic ceramic molded body and a resin, rubber, elastomer, metal, or the like. be able to.

Abstract

L'invention concerne une pièce moulée en céramique non magnétique à base de nitrure dotée, sur sa surface, d'une structure rugueuse, la structure rugueuse présentant des creux et des protubérances et, visualisée par prise de vue par microscope électronique (à un grossissement d'au moins 200x), la forme de la section transversale des creux et protubérances, dans la direction de l'épaisseur, est courbe, et la courbe des protubérances est une protubérance formée en plis dans la direction longitudinale, ou la courbe des protubérances a une pluralité de trous indépendants ménagés le long d'une ligne dans la direction longitudinale.
PCT/JP2019/037771 2018-09-27 2019-09-26 Pièce moulée en céramique non magnétique à base de nitrure dotée, sur sa surface, d'une structure rugueuse, et procédé de fabrication associé WO2020067248A1 (fr)

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JPH01317605A (ja) * 1988-06-15 1989-12-22 Kawasaki Steel Corp ロール表面の加工方法
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WO2018043637A1 (fr) * 2016-09-02 2018-03-08 ダイセルポリマー株式会社 Procédé de rugosification de surface de corps moulé métallique

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JP7100084B2 (ja) 2022-07-12
TW202041485A (zh) 2020-11-16

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