WO1987001627A1 - Assemblage de moule - Google Patents

Assemblage de moule Download PDF

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Publication number
WO1987001627A1
WO1987001627A1 PCT/JP1986/000457 JP8600457W WO8701627A1 WO 1987001627 A1 WO1987001627 A1 WO 1987001627A1 JP 8600457 W JP8600457 W JP 8600457W WO 8701627 A1 WO8701627 A1 WO 8701627A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold assembly
assembly according
mold
molding
hydraulic material
Prior art date
Application number
PCT/JP1986/000457
Other languages
English (en)
Inventor
Etsuo Sakai
Asaaki Nishioka
Kiyosi Watanabe
Iwao Mino
Original Assignee
Denki Kagaku Kogyo Kabushiki Kaisha
Densit A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP60199578A external-priority patent/JPS6261736A/ja
Priority claimed from JP60203108A external-priority patent/JPS6264430A/ja
Priority claimed from JP60244080A external-priority patent/JPS62104712A/ja
Priority claimed from JP1270786A external-priority patent/JPS62170302A/ja
Priority claimed from JP61014831A external-priority patent/JPH0729345B2/ja
Application filed by Denki Kagaku Kogyo Kabushiki Kaisha, Densit A/S filed Critical Denki Kagaku Kogyo Kabushiki Kaisha
Publication of WO1987001627A1 publication Critical patent/WO1987001627A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/01—Selection of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2821/00—Use of unspecified rubbers as mould material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2863/00—Use of EP, i.e. epoxy resins or derivatives thereof as mould material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/02—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/06—Concrete

Definitions

  • the present invention relates generally to a mold
  • Conventional molds or mold assemblies are made of cast irons, steels, zinc base alloys, aluminum or various
  • a principal object of this invention is to provide a mold assembly which can be fabricated at room temperature by a simple operation within a short fabrication time and which is high in compressive strength and excellent in durability.
  • Another object of this invention is to provide a mold assembly made of a material which is free of bleeding or other material separation problems and excellent in profiling property.
  • a further object of this invention is to provide a mold assembly which can be produced at a low cost and can mold a molded article having a complicated contour and yet with a good finished surface.
  • Another object of this invention is to provide a mold assembly which can press-mold a metallic material only by fabricating a male mold.
  • a still further object of this invention is to provide a mold assembly which can press-mold a metallic material only by fabricating a male mold.
  • Another object of this invention is to provide a mold assembly suited for molding a resin material.
  • Another object of this invention is to provide a
  • Yet a further object of this invention is to provide
  • Another object of this invention is to provide a mold assembly having a molding face covered by a plated layer
  • a mold assembly for molding an article comprises a male mold and a female mold
  • At least one of said male and female molds being made of a
  • FIGs. 1 (a) to (d) are flow diagrams showing, in section, a process wherein a male mold of the invention is used in combination of a female mold constituted of a fluid.
  • Fig.2 is a diagrammatical sectional view showing a mold assembly of the invention, wherein a rubber-like elastomer ° 'is used as the female mold.
  • Fig. 3 is a diagrammatical sectional view showing another mold assembly embodying the invention, wherein a metal mold is used as the female mold.
  • Fig. 4 is a diagrammatical sectional view showing 5 another mold assembly embodying the invention, the mold assembly being particularly suited for the reaction injection molding method.
  • Figs. 5 and 6 are diagrammatical sectional views showing mold assemblies provided with attachment means for the convenience of combining the same with molding machines. DESCRIPTION OF THE INVENTION:
  • the mold assembly of the invention for molding an article includes male and female molds, optionally combined with one or more blank holders, as desired.
  • either one or both of the male and/or female molds are- made of a hydraulic material composition having high strength.
  • Either one or both of the molding faces of male and/or female molds are made.of a substance other than the hydraulic material composition.
  • Either one of the male or female mold may be, of course, made of a substance other than the hydraulic material composition in its entirety.
  • at least a portion of the other mold should be made of the hydraulic material composition.
  • both of the male and female molds are made of the hydraulic material composition
  • at least one of the molding faces of male and female molds should be made of a substance other than the hydraulic material composition.
  • the blank holder may also be made of the hydraulic material composition.
  • the main ingredient may preferably have a compressive
  • the water content of the composition is as small
  • present invention include various kinds of cements, mineral
  • cements are examples of cements
  • blended cements such as silica-
  • the invention have the analytical values of X-ray
  • the materials having hydraulic activities include
  • material generally has an average particle size of from 10
  • cements include a variety of cements; calcium hydroxide; calcium oxide; quick lime; calcium sulfoaluminate minerals; a variety of inorganic and organic alkalline salts, such as carbonates, bicarbonates, hydroxides, silicofluorides and sodium, lithium and potassium salts of gluconic acid and citric acid; and calcium sulfates, i.e. anhydride, hemihydrate and di alloye of calcium sulfate. Any one of the aforementioned activators may be used singly or two or more of them may be used in combination.
  • any one or more of these activators may be added in an amount which varies depending on the required properties ajid the specific kind or combination of the activator used, and it is desireous that not more than 100 parts by weight, preferably not more than 60 parts by weight, of an activator is admixed with 100 parts by weight of the material having hydraulic activity.
  • the particularly preferred material is not more than 100 parts by weight, preferably not more than 60 parts by weight, of an activator is admixed with 100 parts by weight of the material having hydraulic activity.
  • blast furnace slag having hydraulic activity
  • composition by the addition the substance releasing Ca(0H) 2 upon
  • composition used in the invention may be added with, in addition to the hydraulic material, an additive,
  • Preferable expan-sive additives are ettringite type
  • examples of preferable 1 0 are more than 10 microns.
  • examples of preferable 1 0 are more than 10 microns.
  • rapid hardening agents are calcium alu inate system materials, such as alumina cements or combinations of alumina cements with calcium sulfate, the one sold under the Trade Name of "Denka ES” from Denki Kagaku Kogyo K.K., and the one sold under the Trade Name of "Jet Cement” from Onoda Cement Co., Ltd.
  • Examples of effective mixing additives for exhibiting high strength are calcium sulfate system materials, such as the one sold under the Trade Name of "Denka ⁇ -IOGO” from Denki Kagaku Kogyo K.K. and the one sold under the Trade Name "Asano Super Mix” from Nippon Cement Co., Ltd.
  • accelerators are chlorides such as calcium chloride, thiocyanates, nitrites, chromates and nitrates.
  • retarders are saccharides; soluble dextrin; organic
  • acids and salts thereof such as gluconic.acid; and inorganic salts such as fluorides.
  • the ageing operation includes high temperature ageing effected at about 50°C to 250 ⁇ C or includes high temperature and high pressure ageing effected at about 50 ⁇ C to 250°C in order to obviate continuation of reaction extending over too long ageing period and thereby to improve the stability of the aged mass. It is also possible to compensate the contraction by the use of an expansive cement, to
  • the ultra-fine particle used in the invention may be any ultra-fine particle used in the invention.
  • the size of the ultra-fine particle ranges not more than 3 ⁇ m ,
  • particles are silica dust or silicious dust obtained as the
  • inventions include calcium carbonate, silica gel, opalic silica, fly ash, blast furnace slag, titanium oxide and aluminium oxide.
  • Ca 3 Si0 s may be pulverized in a ultra-fine particle form
  • furnace slag prepared by pulvering them by the combined use of
  • ultra-fine opalic silica, fly ash or blast furnace slag is mixed with not more than 75 parts by weight- of ultra-fine silica fume particle to use as the ultra-fine particle component
  • the ultra-fine particle is used preferably in an
  • the strength of the hardened composition may be lowered below the satisfactory level
  • the fluidity of the kneaded composition may
  • the water reducing agent used in the invention is a
  • water reducing agent which may be preferably used in the composition of the
  • inventions include those mainly composed of salts of condensation product of naphthalenesulfonic acid and
  • alkylnaphthalenesulfonic acid and formaldehyde.
  • formaldehyde Preferably
  • the water reducing agent is sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite
  • a water reducing agent is combined with 1 4
  • composition which has a fluidity high enough for molding by
  • material + ultra-fine particle is not more than 25$.
  • the water content should be as small
  • the water content is not always limited to
  • composition of the Invention may be any organic compound having the molding process.
  • the composition of the Invention may be any organic compound having the molding process.
  • the composition of the Invention may be any organic compound having the molding process.
  • cement concrete compositions including the extrusion molding
  • composition of the invention is added
  • the usable aggregates being river sand, mountain
  • An aggegate may generally be used in an amount such
  • Materials affording other functions may be contained in the composition.
  • a so-called solid lubricant such as molybdenum
  • a material for affording special functions such as
  • thermal conductivity or electrical conductivity may also be used.
  • vacuum debubbling may be effected during the
  • Ageing _of the molded mass may be effected by any
  • methods including ageing at room temperature, ageing with.
  • the mold assembly 10 includes a male mold 11, a female mold 12 and a blank holder 13.
  • the female mold 12 shown in Fig. 1(a) is constituted of a fluid
  • the female mold 12' shown in Fig. 2 is constituted of a rubber-like elastic material, such as a urethane rubber in its entirety.
  • the male molds 11 are made of a cement composition having high strength.
  • Figs. 1(a) to (d) a, process for press-molding a metal plate 15 by means of the mold assembly 10 will be described.
  • the molding process using the mold assembly 10 shown in Fig. 2 is similar to the process shown by Figs. 1(a) to (d), and will not be described repeatedly.
  • Fig. 1(b) as the male mold 11 is pushed into the female 12 while holding the marginal portion of the metal, plate 15 by the blank holder 13,- a fluid pressure is applied on the metal plate 15 so that the metal plate 15 is press-molded. Then, the male mold 11 is pulled off together with the blank holder 13 as shown in Fig. 1(c), and the blank holder is raised as shown in Fig.
  • the surface i.e. the molding face
  • the of the male mold 11 may be covered by a metal layer, a layer of
  • a resin such as an epoxy resin or an epoxy resin composition containing metal particles, or a layer of a ceramic material,
  • Such alumina such as alumina, alu ina-titania, magnesia or spinel.
  • alumina such as alumina, alu ina-titania, magnesia or spinel.
  • covering layer may be deposited by a plating, flame spraying,
  • mold assembly 30 comprises a male mold 31, a female mold 32 and
  • the male mold 31 is made of a cement
  • composition having high strength and has a mol -frame 31a and
  • the female mold 32 is made of a
  • metallic material for example, cast iron, steel or stainless
  • ferrous metal such as aluminum, and may be shaped to have a
  • the blank holder 33 is made of a cement composition having high strength.
  • the female mold 32 is made of a
  • a molding face 32a made of a metallic material may be provided
  • the surface layer may be formed
  • metal plate such as an iron plate, a steel plate, various alloy plates, such as a stainless steel plate, and non-ferrous metal plates, may be easily molded by press molding. It is
  • the male mold 31 and the blank holder are generally preferred that the male mold 31 and the blank holder
  • the female mold 32 is made of a metallic material, in order
  • male and female molds are high in hardness.
  • the product has a
  • mold assembly 40 contains a male mold 41 and a female mold 42,
  • both of the male and female molds 41 and 42 are made of a
  • the male mold 41 and the female mold 42 have, respectively, metal plating layers 41a
  • the mold assembly 40 of this embodiment is particu-
  • RIM molding
  • the reactants having a low molecular weight, a low viscosity
  • resins but also other resins, such as nylon, epoxy resins and polyester resins, and for molding polymer composite materials made of, for example, an urethane resin and an epoxy resin, or an urethane resin and a polyester, resin.
  • a material for a mold assembly used in such RIM process iron, aluminum, zinc alloys and nickel have been predominantly used in the prior art.
  • the material for a mold ase bly used in the RIM process is selected in consideration of the durability, resistance to abrasion and cost, and an important factor for the selecsion of the aterail therefor is that it has high thermal conductivity and forms a good skin layer * Since the RIM process is suited for producing small numbers of various articles each having different shape and dimensions, it provides a particular advantage of reduction of operation time if the process for preparing a mold assembly for use in the RIM process can be simplified. Since the mold assembly 40 of the invention is made of a cement composition, the time required for the preparation of the mold assembly is about a week which is remarkably shorter than the time required for the preparation of the conventional mold assembly costing 12 to 22 weeks. As shown in Fig. 4, a liquid high molecular weight resinous mixture is injected under high pressure into a sealingly closed cavity of the mold assembly 40 and is molded therein. The molded article 43 may be used as it is or may be
  • a releasing agent may be used to prevent the molded article from adhering to the mold faces, when a urethane resin
  • releasing agents may be used, the examples being silicone resin
  • cement composition may be covered with metal plating layers 41a and 42a which are then subjected to mirror finishing, when an
  • a non-electrolysis plating method may be adopted.
  • a non-electrolysis plating method may be adopted.
  • oily materials such as a releasing agent
  • a rinsing agent such as acetone
  • a salt of platinum group element such as a salt of palladium
  • salts of platinum group elements which may be used for this purpose include salts of Pd, Ru, Rh, Os, Ir and Pt, the representative example being palladium chloride.
  • the condition for forming such a skin membrane provided with catalytic activity is not critical, and the skin membrane may be formed by allowing the surface of the mold matrix to contact with a solution containing any of the aforementioned salts at room temperature for 1 to 5 minutes.
  • concentration of the water-soluble salt of platinum group element, such as palladium chloride, is not critical, and generally used is a solution containing 0.001 mol/ ⁇ to 0.002
  • an acid such as hydrochloric acid, may be mixed in an amount of about 1X10 ⁇ 3 mol/ ⁇ .
  • the plating layer may be made of
  • metal or an alloy such as a nickel alloy or a cobalt alloy, or
  • a composite plating composition composed of a metal and a
  • a plating bath used and the thickness of the plating layer to be deposited are not critical for the practice of the invention.
  • copper plating may be deposited at room temperature
  • nickel plating may be deposited at a temperature of from 70 to 100 C C.
  • a skin membrane of a platinum group element, such as palladium, providing catalytic activity is formed to be ready for the subsequent non-electrolysis plating only by dipping the mold in a solution of a salt of palladium group element, such as palladium chloride, without the need of etching by a solution of chromic acid-sulfuric acid and without the need of dipping into an acidic solution of stannous chloride containing stannous chloride and hydrochloric*acid used conventionally as a catalyst reducing agent for palladium chloride.
  • a salt of palladium group element such as palladium chloride
  • stannous chloride is used as a catalyst reducing agent to reduce a salt of platinum group element, such as a salt of palladium, to deposite the platinum group element, such as palladium.
  • the surface layer formed by the non-electrolysis plating may be applied with a further coating through an electrolysis plating method, or the hydraulic material composition is rendered to be conductive, and then applied with an electrolysis plating layer.
  • plating method is made of, for example, nickel, chromium, zinc,
  • a plating layer may be ground by water sanding paper to have mirror finish.
  • a preferable water sanding paper is # 200 paper
  • a particularly excellent plating layer may be formed
  • a dense hydraulic material compoisiton contains, for example,
  • agent an aggregate and water; or comprises a hydraulic
  • high polymer (hereinafter referred simply to as "high polymer”) and water.
  • volume percentage of voids or pores (hereinafter referred to as voids or pores).
  • the porosity of the dense hydraulic material is not more than 10$ for the composition containing a
  • the hydraulic material include carboxymethyl cellulose, hydroxyethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, hydroxybutylmethyl cellulose, polyethyleneoxide, copoly ers of acrylamide and acrylic acid, polyacrylamide, copolymers of styrene and maleic anhydride, and polyvinyl alcohol.
  • the high polymer is used in an amount of not more than 30 vt%, based on the weight of the hydraulic material, prferably in an amount of 3 to 20 wt$.
  • Such a hydraulic material composition having a small porosity has high strength and high surface hardness with the surface excellent in smoothness, and thus can be plated with a metal plating layer of good condition, namely a smooth metal plating layer is formed even when the plating layer is thin. Moreover, the adhesive strength between the metal plating layer and the dense hydraulic material composition- is high.
  • Further embodiments of the mold assembly of the invention are denoted by 50 and 60 in Figs. 5 and 6.
  • the mold assembly 50 comprises a male mold 51, a female mold 52 and a blank holder 53. All of the members 51, 52 and 53 are made
  • the female mold 52 and the blank holder 53 are mounted to frames 52b and 53b, and a surface layer 52c is formed on the molding face of the female mold 52.
  • the mold assembly 60 shown in Fig. 6 has a
  • the mold 60 has
  • the mold assemblies 50 and 60 are provided with
  • assemblies 50 and 60 can be mounted to the molding machines A
  • the mounting face of the mold should be machined precisely to have accurate dimensions. If the mounting face is of inaccurate dimensions and shape, the
  • shaping operations is three or four times as long as the time
  • the mounting face can be completed within a time that is not
  • the material for the fitting member is the free-cutting property. Although the-definition of the free-cutting property has not been established, the hardness of the material becomes the lower, the better free-cutting property has the material. It is
  • a material used for such purpose has a Rockwell
  • a first method for the provision of such a fitting member comprises the step of placing a backing layer made of a binder selected from resins, calcium sulfates, cements and
  • a second method is to dispose a machinable metal plate such as a iron plate,
  • a third method is to form a backing layer by flame spraying
  • the fitting member for engaging with a cement base material is used as the binder in the first method, the fitting member for engaging with a cement base material is used as the binder in the first method, the fitting member for engaging with a cement base material is used as the binder in the first method, the fitting member for engaging with a cement base material is used as the binder in the first method, the fitting member for engaging with a cement base material is used as the binder in the first method, the fitting member for engaging with a
  • molding machine is preferably placed at a time point after the
  • main body of the mold has been cast and before water has not
  • fitting member are then aged as an integral mass.
  • a binder other than the cement base material it is used, it is
  • the material for forming the fitting member is
  • Nails, anchors or the like members may be embedded in the face
  • stud bolts or deformed steel bars may be fixed, for example by welding, onto the
  • a layer may be formed by flame spraying method wherein the
  • molten metal or resin is injected onto .the roughened surface.
  • a plated layer may
  • the thickness of the fitting member for engaging with a molding machine is thin, generally
  • the mold assembly of the invention may be used as a
  • a synthetic resin i.e. a fiber reinforced plastic material
  • SMC sheet molding compound
  • BMC bulk molding compound
  • SMC and BMC methods are advantageous since an article having excellent surface condition or property may be prepared within .
  • the mold assembly of the invention may be effectively used in these molding methods.
  • Thermo-setting resins such as unsaturated polyester
  • typical fibers being fiber glass processed to be hydrophobic.
  • main ingredients means a pre-mix of fibers and a synthetic resin before being subjected to a molding process, and includes,
  • the mold assembly of the invention may also be used
  • mold assembly of the invention has a relatively low thermal
  • the blow-molding -process may also be well suited for use in the injection molding process, the blow-molding -process and the vacuum molding - process.
  • a mold assembly 10 having the construction as shown in Fig. 1 was prepared and, used in this Example.
  • composition was aged at 20°C for one day, and at 50°C in air
  • Ultra-fine Particle Silica fume (produced and sold by Japan Metals & Chemicals Co., Ltd.) having an average
  • Fiber Steel fibers cut ⁇ by the chatter cutting (produced
  • a metal plate 15 was placed on the thus prepared male
  • a part for a motorcycle was molded using a mold assembly having a construction as denoted by 30 in Fig. 3.
  • Example 1 A female mold 32 was fabricated from cast iron
  • the aforementioned mold assembly 30 was mounted on a
  • a mold assembly for use in the RIM method was
  • Both of the main bodies of the male and female molds 41 and 42 were made of the composition as set forth in Table 1.
  • a polyurethane was used as a resinous material to
  • the mold was prepared for molding an oil tank for an autocycle, and had the dimensions of
  • the fitting member 54 was machined until the top face of the fitting member had a dimensional accuracy ranging within 3/100 mm relative to the face of the press.
  • a fitting member made of a cement-silica system material was used. (Available from Denki Kagaku Kogyo K.K. under the Trade 6 hrs.
  • a fitting member made of a resin-wood system material was used. (Available from Kokusai Chemical Company, Limited under the 2 hrs.
  • a fitting member made of a calcium sulfate-resin system material was used. (A press material available from Fuji Gypsum Company, 3 hrs. Limited.)
  • a cement base composition having high strength was used for casting each of the main body of the mold assemblies , the cement base composition being composed of 80 parts by weight of white Portland cement (available from Chichibu Cement Co . , Ltd . ) , 20 parts by weight of a silica flour (available from Japan Metals & Chemicals Co. , Ltd. ) ,
  • the cement base composition was kneaded in a vacuum type Omni-mixer and cast by a vacuum- casting method. The cast products were allowed to stand at 20°C for one day, and then aged at 50°C by steam for one day to
  • Each of the mold assemblies 50 made of the cement base composition and fitted with respective fitting members was mounted on a "600pp-123 Press" available from Kawasaki Yucoh Company Limited, and 0.8 mm thick steel plates were successively pressed at a P-pressure of 350 tons and at a C-pressure of 80 tons.
  • Each of the mold assemblies had not been deformed or otherwise damaged to be capable of continuing a further molding, even after 50 shots operations.
  • Example 5 A mold assembly made of a cement base composition and having a construction same as the mold assembly denoted by
  • the mold assembly had the dimensions of 1000X600X400 mm.
  • An iron plate (Initail Thickness Just after Installation: 25 mm) similar to that denoted by 64 in Fig. 6 was assembled in each of the male and female molds 61 and 62 which were made of the same cement base composition and aged under the same ageing conditions as in Example 4.
  • the iron plate 64 was milled by about 5 mm to attain a dimemsional accuracy of 3/100 mm relative to the press face of a molding machine.
  • a fitting member made of an iron plate was used. 1.5 hrs.
  • the plated layers were firmly adhering to the
  • Solution B 0.25g of palladium chloride and 2.5 mfi of hydrochloric acid were dissolved in water to obtain 1 ⁇ of Solution A.
  • compositions set forth in Table 5 were kneaded in a mixer, and a test specimen having the dimensions of 2 X5 cm was molded under reduced pressure develped by suction from each of the compositions. After the lapse of one day, each test specimen was aged at 20°C in pure water for 7 days. After the completion of ageing, the test specimen was dried at 105°C to obtain a hardened speciemen which was weighed in air and the weight (A) thereof was recorded as the constant weight. Thereafter, each test specimen was immersed in boiled water to fill all pores thereof with water, and the weight of the speci ⁇ men impregnated with water was weighed in water to learn the weight in water (B) and then weighed in air to learn the weight
  • a hardened matrix was produced from each admixture similar to Example 7, and the hardened matrix
  • the plated metal was nickel, and the used non-electrolysis plating solution was prepared by diluting a solution commercially sold under the Trade Name of "Kanigen Blue Shumer” in the standard dilution ratio (catalogue ratio).
  • the non-electrolysis plating was conducted at 70°C for 3 hours.
  • each matrix or test piece was rinsed
  • the solutions used for pre-treatment are as follows.
  • Solution A lOg of stannous chloride and 40 m ⁇ of hydrochloric
  • Solution B 0.25g of palladium chloride and 2.5 m of hydro ⁇
  • chloric acid are diluted with water to have a volume of l ⁇ . . '
  • Solution C The standard solution of a commercially available palladium chloride base pre-treating solution
  • Solution D The standard solution of a commercially available
  • colloidal pre-treating solution containing stannous chloride and palladium chloride, produced and sold by
  • Solution E The standard solution of a commercially available
  • Alumina Cement No. 1" was mixed with 8 parts by weight of a
  • a 2 mm thick sheet made of the aforementioned mixture was discharged from the rollers, and pressed at 120°C and at
  • the thus obtained matrix had a
  • Example 8 with plated layers similarly as in Example 8 except that the pre-treating solutions set forth in Table 7 were used.
  • the pre-treating solutions set forth in Table 7 were used.
  • Test pieces made of the hardened matrix were treated with
  • non-electrolysis plating bath in a non-electrolysis plating bath to be plated with copper.
  • Nickel was plated over the molding face of the female mold through a non-electrolysis plating method.
  • composition was 1,750 kgf/cm 2 . 51
  • composition (part by weight):
  • the material for SMC comprised
  • the mold assembly was heated by hot air to 150°C, and the material for
  • a mold assembly made of a cement base composition having high strength was fabricated using the following composition.
  • composition (part by weight) :

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Assemblage de moule pour le moulage d'un article. L'assemblage de moule se compose d'au moins un moule mâle et un moule femelle. Au moins un moule parmi les moules mâles et femelles consiste en une composition présentant une résistance élevée et contenant un matériau hydraulique en tant qu'ingrédient principal. Une face de moulage d'au moins un moule parmi les moules mâles et femelles se compose d'une substance autre que le matériau hydraulique.
PCT/JP1986/000457 1985-09-11 1986-09-10 Assemblage de moule WO1987001627A1 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP60199578A JPS6261736A (ja) 1985-09-11 1985-09-11 高強度セメントプレス成形型
JP60/199578 1985-09-11
JP60/203108 1985-09-13
JP60203108A JPS6264430A (ja) 1985-09-13 1985-09-13 金属板の加工方法
JP60244080A JPS62104712A (ja) 1985-11-01 1985-11-01 成形用型
JP60/244080 1985-11-01
JP61/012707 1986-01-23
JP1270786A JPS62170302A (ja) 1986-01-23 1986-01-23 高強度セメント製成形型
JP61/014831 1986-01-28
JP61014831A JPH0729345B2 (ja) 1986-01-28 1986-01-28 高分子樹脂成形用セメント製成形型

Publications (1)

Publication Number Publication Date
WO1987001627A1 true WO1987001627A1 (fr) 1987-03-26

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Application Number Title Priority Date Filing Date
PCT/JP1986/000457 WO1987001627A1 (fr) 1985-09-11 1986-09-10 Assemblage de moule

Country Status (3)

Country Link
EP (1) EP0237575A1 (fr)
AU (1) AU6337086A (fr)
WO (1) WO1987001627A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359601A1 (fr) * 1988-08-02 1990-03-21 Chausson Ingenierie Procédé pour la fabrication d'outils de formage, notamment d'emboutissage,de détourage et autres, de pièces en tôle métallique
FR2642341A1 (fr) * 1989-01-30 1990-08-03 N Proizv Ob Tulatschermet Outil pour l'emboutissage d'une tole
FR2660236A1 (fr) * 1990-04-02 1991-10-04 Seva Moule pour le moulage de pieces en matiere plastique, et son procede de fabrication.
EP0642903A2 (fr) * 1993-09-07 1995-03-15 Motorola, Inc. Méthode et dispositif pour produire des pièces moulées
AT402905B (de) * 1994-05-20 1997-09-25 Steyr Daimler Puch Ag Verfahren zum herstellen von leichten und steifen verbundteilen und nach diesem verfahren hergestellte teile
EP2072205A1 (fr) * 2007-12-17 2009-06-24 Rovalma SA Procédé pour la fabrication de pièces à demande mécanique élevée et en particulier des outils à partir de céramique ou polymères de faible coût
WO2017149148A1 (fr) * 2016-03-03 2017-09-08 Kmb Keramischer Modell- Und Formenbau Gmbh Outil de façonnage et/ou de moulage primaire
EP2774738B1 (fr) * 2013-03-04 2017-09-13 FRIMO Group GmbH Procédé de fabrication d'un composant en fibres composites avec surface structurée et composant ainsi obtenue

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Publication number Priority date Publication date Assignee Title
DE578397C (de) * 1932-06-11 1933-06-13 Ambi Budd Presswerk G M B H Gesenk zum Pressen von Blech oder anderen tafelfoermigen Werkstoffen
GB404998A (en) * 1932-06-21 1934-01-22 Douglas Anderson Improvements in machines for working metal by bending, drawing and similar operations
US3034465A (en) * 1958-11-28 1962-05-15 Gen Motors Corp Die
US3179725A (en) * 1960-10-07 1965-04-20 North American Aviation Inc Method for making a die
US3195341A (en) * 1961-11-20 1965-07-20 Nat Lead Co Die apparatus
US3276239A (en) * 1964-04-06 1966-10-04 Kaufmann Tool And Engineering Press brake die retainer
GB1084625A (en) * 1966-02-16 1967-09-27 Ford Motor Co Method of making a set of die facings for metal pressing operations
US3763542A (en) * 1970-12-18 1973-10-09 Budd Co Short run production tool
US3769824A (en) * 1972-06-14 1973-11-06 Armco Steel Corp Deep drawing method
US3823303A (en) * 1972-08-28 1974-07-09 Northrop Corp Ceramic die press system
US4097286A (en) * 1976-03-25 1978-06-27 Western Electric Company, Inc. Method of depositing a metal on a surface
WO1982001674A1 (fr) * 1980-11-19 1982-05-27 Andersen Arne Outil de mise en forme d'articles

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE578397C (de) * 1932-06-11 1933-06-13 Ambi Budd Presswerk G M B H Gesenk zum Pressen von Blech oder anderen tafelfoermigen Werkstoffen
GB404998A (en) * 1932-06-21 1934-01-22 Douglas Anderson Improvements in machines for working metal by bending, drawing and similar operations
US3034465A (en) * 1958-11-28 1962-05-15 Gen Motors Corp Die
US3179725A (en) * 1960-10-07 1965-04-20 North American Aviation Inc Method for making a die
US3195341A (en) * 1961-11-20 1965-07-20 Nat Lead Co Die apparatus
US3276239A (en) * 1964-04-06 1966-10-04 Kaufmann Tool And Engineering Press brake die retainer
GB1084625A (en) * 1966-02-16 1967-09-27 Ford Motor Co Method of making a set of die facings for metal pressing operations
US3763542A (en) * 1970-12-18 1973-10-09 Budd Co Short run production tool
US3769824A (en) * 1972-06-14 1973-11-06 Armco Steel Corp Deep drawing method
US3823303A (en) * 1972-08-28 1974-07-09 Northrop Corp Ceramic die press system
US4097286A (en) * 1976-03-25 1978-06-27 Western Electric Company, Inc. Method of depositing a metal on a surface
WO1982001674A1 (fr) * 1980-11-19 1982-05-27 Andersen Arne Outil de mise en forme d'articles

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* Cited by examiner, † Cited by third party
Title
Machinery, Volume 102, No. 2617, 9 January 1963, (Machinery Publishing Co. Ltd., Burgess Hill, GB), "Stretch Forming on a Concrete Die", see page 103 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359601A1 (fr) * 1988-08-02 1990-03-21 Chausson Ingenierie Procédé pour la fabrication d'outils de formage, notamment d'emboutissage,de détourage et autres, de pièces en tôle métallique
FR2640168A2 (fr) * 1988-08-02 1990-06-15 Chausson Usines Sa Procede pour la fabrication d'outils a base de beton de resine pour le formage, notamment d'emboutissage, de detourage et autres, de pieces en tole metallique
FR2642341A1 (fr) * 1989-01-30 1990-08-03 N Proizv Ob Tulatschermet Outil pour l'emboutissage d'une tole
FR2660236A1 (fr) * 1990-04-02 1991-10-04 Seva Moule pour le moulage de pieces en matiere plastique, et son procede de fabrication.
EP0451042A1 (fr) * 1990-04-02 1991-10-09 SEVA, société dite, Moule pour le moulage de pièces en matière plastique, et son procédé de fabrication
EP0642903A3 (fr) * 1993-09-07 1995-12-13 Motorola Inc Méthode et dispositif pour produire des pièces moulées.
EP0642903A2 (fr) * 1993-09-07 1995-03-15 Motorola, Inc. Méthode et dispositif pour produire des pièces moulées
AT402905B (de) * 1994-05-20 1997-09-25 Steyr Daimler Puch Ag Verfahren zum herstellen von leichten und steifen verbundteilen und nach diesem verfahren hergestellte teile
EP2072205A1 (fr) * 2007-12-17 2009-06-24 Rovalma SA Procédé pour la fabrication de pièces à demande mécanique élevée et en particulier des outils à partir de céramique ou polymères de faible coût
WO2009077524A2 (fr) * 2007-12-17 2009-06-25 Rovalma, S.A. Procédé de production de pièces hautement sollicitées mécaniquement et particulièrement d'outils à partir de céramiques ou polymères peu coûteux, tels que le béton, par coulée en moule de la forme désirée, puis revêtement d'une couche métallique ou de céramique aux propriétés élevées
WO2009077524A3 (fr) * 2007-12-17 2009-08-20 Rovalma Sa Procédé de production de pièces hautement sollicitées mécaniquement et particulièrement d'outils à partir de céramiques ou polymères peu coûteux, tels que le béton, par coulée en moule de la forme désirée, puis revêtement d'une couche métallique ou de céramique aux propriétés élevées
US8283026B2 (en) 2007-12-17 2012-10-09 Rovalma, S.A. Method for producing highly mechanically demanded pieces and specially tools from low cost ceramics or polymers
US20130183463A1 (en) * 2007-12-17 2013-07-18 Rovalma, S.A. Method for producing highly mechanically demanded pieces and specially tools from low cost ceramics or polymers
EP2774738B1 (fr) * 2013-03-04 2017-09-13 FRIMO Group GmbH Procédé de fabrication d'un composant en fibres composites avec surface structurée et composant ainsi obtenue
WO2017149148A1 (fr) * 2016-03-03 2017-09-08 Kmb Keramischer Modell- Und Formenbau Gmbh Outil de façonnage et/ou de moulage primaire

Also Published As

Publication number Publication date
EP0237575A1 (fr) 1987-09-23
AU6337086A (en) 1987-04-07

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