WO1999002326A1 - Method of producing a compression moulded product and moulding tool used in performing the method - Google Patents

Method of producing a compression moulded product and moulding tool used in performing the method Download PDF

Info

Publication number
WO1999002326A1
WO1999002326A1 PCT/SE1998/001330 SE9801330W WO9902326A1 WO 1999002326 A1 WO1999002326 A1 WO 1999002326A1 SE 9801330 W SE9801330 W SE 9801330W WO 9902326 A1 WO9902326 A1 WO 9902326A1
Authority
WO
WIPO (PCT)
Prior art keywords
mould halves
moulding tool
compression
film
γçö
Prior art date
Application number
PCT/SE1998/001330
Other languages
French (fr)
Inventor
Mårten BLIKSTAD
Frithjof Kronblad
Torbjörn Andersson
Original Assignee
Sonoform Ab
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
Application filed by Sonoform Ab filed Critical Sonoform Ab
Publication of WO1999002326A1 publication Critical patent/WO1999002326A1/en

Links

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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding

Definitions

  • the present invention relates to a method of producing a compression moulded product according to the precharacterising clause of claim 1 and a product produced according to the said method.
  • the invention also relates to a moulding tool for producing a compression moulded product according to the precharacterising clause of claim 9.
  • a method is produced of producing a compression moulded product as indicated by claim 1.
  • the said compression moulded product is produced as indicated in claim 7.
  • a moulding tool is produced for producing a compression moulded product as indicated in claim 9.
  • Preferred embodiments also have any or some of the characteristics indicated for each respective claim category in the subordinate claim.
  • the method, the compression moulded product produced by the method and the moulding tool for use in the method according to the present invention have several advantages. Among other things the compression moulding of the product and foliation thereof are performed in one stage. The need to use adhesive or the like for foliation of the product is also entirely eliminated.
  • Fig.1 shows the moulding tool in section according to the said embodiment.
  • Fig. 2 shows an example of a raw material before introduction into the moulding tool.
  • Fig. 3 shows welded decorative sheets incorporated into the raw material
  • Fig. 4 shows a diagram of the various stages in a method according to the present invention.
  • Fig. 5 and fig. 6 show an example of a compression moulded product according to the present invention and an area of application thereof.
  • the moulding tool shown in fig. 1 comprises a heatable female tool 2a, 2b, in which mould halves 3a, 3b are arranged.
  • the mould halves 3a, 3b are further heated through the female tool 2a, 2b.
  • At least one mould half 3a is movable between a first position and a second position, the mould halves being adapted in the first position to receive a raw material, which will be described in more detail in connection with fig. 2, and in the second position mainly to bear against the raw material.
  • the mould halves 3a, 3b are further formed with cavities 4a, 4b, which forming will be described in more detail later.
  • the moulding tool 1 has horizontal compression edges 5 in order to produce adequate venting. It also has force-applying elements adapted to press the mould halves against one another in order to produce compression of the raw material, which will be described in connection with fig. 2.
  • the force-applying element in this example comprises a press table 14a, 14b.
  • the moulding tool 1 is also formed with one or more control rulers 15, for example one ruler on the short side of the moulding tool and one on its long side.
  • the raw material shown in fig. 2 comprises a carrier 6 comprising sheets of a fibre material impregnated with a first thermosetting plastic material.
  • the carrier 6 is of sheet moulding compound (SMC).
  • a film pack comprising one or more sheets of film impregnated with a second thermosetting plastic, which in one embodiment may be epoxy, is also incorporated in the raw material.
  • the first and the second thermosetting plastic are the same plastic.
  • the film pack next to the carrier comprises a film pack of colorant film sheet 7 impregnated with the plastic.
  • the sheet of film 7 is of a brittle material.
  • a number of sheets of film 8a, 8b, 8c provided with a pattern, in this example 3 pieces forming a decor. This too is made of a brittle material and impregnated with the plastic. Naturally it is possible to conceive of other embodiments with another number of sheets for the decor. Using a plurality of sheets, however, produces a depth in the decor.
  • a sheet of film composed of a thin layer mainly of plastic and forming a wearing layer 9 is arranged furthest out from the carrier.
  • the sheets of film are welded together.
  • the decor sheets 8a, 8b, 8c are welded together along one of their longitudinal edges; the welding may be carried out, for example, at isolated points.
  • the remaining sheets in the film pack can also advantageously be included when welding. It is particularly advantageous, however, where more than one decor sheet is used, as in fig. 3, to weld these together. This is because slipping would lead to the decor becoming blurred.
  • the continuous line 10 marks the force which is applied to the mould halves 3a, 3b and the dashed line 11 marks the distance between the mould halves 3a, 3b.
  • the mould halves 3a, 3b are made to move in the opening direction to a first position, whereupon the raw material described in connection with fig. 2 is introduced.
  • the charging of the raw material into the moulding tool preferably occurs rapidly so that the relatively high tool temperature (e.g. 140-160°C) does not cause the sheets in the film pack to begin setting before they have been compressed.
  • the process is then initiated by the mould halves 3a, 3b being made to move in the closing direction to a second position. This is shown by the first downward sloping part of the dashed curve 11.
  • the carrier and the film pack are preheated by the moulding tool in order to make the plastic material in these viscous.
  • the preheating also serves to soften the sheets of the brittle material included in the pack.
  • a force is applied to the mould halves, in this example approximately 1000 kN, which will be seen from part 10a of the continuous curve 10.
  • the mould halves come somewhat closer together at the start of the preheating phase.
  • This preheating phase lasts approximately 15 sees and the distance between the mould halves is approximately 5-6 mm (at a height on the pack comprising the carrier and the film pack of approx. 5 mm).
  • a force is applied which is greater than the force applied in the preheating phase, in order to press the two mould halves 3 a, 3b against one another.
  • the force in this example is approximately 5400 kN.
  • the precompression lasts approximately 10-15 sees. Precompression causes the viscous carrier material to fill the cavities and setting is initiated, carrier and film pack thereby being chemically combined and residual vapours contained in the carrier and/or the film pack being vaporised.
  • the vapours formed are released in a venting phase in that the force applied is released and the mould halves brought somewhat apart. Because of the horizontal compression edges 5 of the moulding tool 1 adequate venting is produced with a significantly smaller gap between the mould halves than if the moulding tool were to have vertical compression edges. The venting phase lasts approximately 5 - 10 sees .
  • the finished product therefore comprises the compression moulded carrier and the film pack integrated therewith.
  • ejector valves are arranged with the mould halves in order to remove the product from the tool.
  • the moulding tool is adapted to be controlled by a control element, which controls the mould halves 3 a, 3b and the press table 14a, 14b so that the process described in connection with fig. 4 is performed.
  • the cavities formed in the mould halves are designed in order to prevent cracking in the brittle sheets as a result of exposure to excessively high tensile forces during compression.
  • an edging strip 12 has a film covering 12a and a carrier 12b.
  • the carrier part 12b in this design has two projecting parts 12c, 12d. These are adapted to be fitted on a rail 13 comprising a complementary part 13a to the two projecting parts 12c, 12d.
  • the rail 13 may be of a solid material, for example plastic, sheet metal or steel.
  • the strip 12 is fitted to the rail 13.
  • larger products, obtained by the method in the present invention are divided into strips after the products have been removed from the moulding tool. There may also be a requirement for the strips to be milled in a finishing stage in order to remove remaining burrs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The present invention relates to a method for producing a compression moulded product by means of a moulding tool (1) and the said moulding tool. The method is characterised in that both a carrier, comprising sheets of a fibre material impregnated with a first thermosetting plastic material, and a film pack comprising at least one sheet of film which includes a second thermosetting plastic material, which may be the same thermosetting plastic material as the first, are introduced into the moulding tool (1). The moulding tool (1) is then closed and preheats the carrier and the film pack in order to make the plastic material in these viscous. In the next stage a force is applied in order to prepress the mould halves (3a, 3b) of the moulding tool against one another, thereafter producing venting. A second force is then applied in order to again press the two mould halves against one another. Finally the moulding tool (1) is opened for removal of the product thereby produced, comprising the compression moulded carrier and the film pack integrated therewith.

Description

Method of producing a compression moulded product and moulding tool used in performing the method
The present invention relates to a method of producing a compression moulded product according to the precharacterising clause of claim 1 and a product produced according to the said method.
The invention also relates to a moulding tool for producing a compression moulded product according to the precharacterising clause of claim 9.
Producing compression moulded products by the compression moulding of thermosetting plastic material using moulding tools is already known.
According to one embodiment of the present invention a method is produced of producing a compression moulded product as indicated by claim 1. In addition, according to the embodiment the said compression moulded product is produced as indicated in claim 7.
Furthermore according to another embodiment of the present invention a moulding tool is produced for producing a compression moulded product as indicated in claim 9.
Preferred embodiments also have any or some of the characteristics indicated for each respective claim category in the subordinate claim.
The method, the compression moulded product produced by the method and the moulding tool for use in the method according to the present invention have several advantages. Among other things the compression moulding of the product and foliation thereof are performed in one stage. The need to use adhesive or the like for foliation of the product is also entirely eliminated.
The invention will be further explained below with the aid of an example of an embodiment of the method and the product thereby produced according to the invention, together with an embodiment of the moulding tool according to the present invention.
Fig.1 shows the moulding tool in section according to the said embodiment. Fig. 2 shows an example of a raw material before introduction into the moulding tool.
Fig. 3 shows welded decorative sheets incorporated into the raw material
Fig. 4 shows a diagram of the various stages in a method according to the present invention.
Fig. 5 and fig. 6 show an example of a compression moulded product according to the present invention and an area of application thereof.
The moulding tool shown in fig. 1 comprises a heatable female tool 2a, 2b, in which mould halves 3a, 3b are arranged. The mould halves 3a, 3b are further heated through the female tool 2a, 2b. At least one mould half 3a is movable between a first position and a second position, the mould halves being adapted in the first position to receive a raw material, which will be described in more detail in connection with fig. 2, and in the second position mainly to bear against the raw material. The mould halves 3a, 3b are further formed with cavities 4a, 4b, which forming will be described in more detail later.
In this example the moulding tool 1 has horizontal compression edges 5 in order to produce adequate venting. It also has force-applying elements adapted to press the mould halves against one another in order to produce compression of the raw material, which will be described in connection with fig. 2. The force-applying element in this example comprises a press table 14a, 14b. The moulding tool 1 is also formed with one or more control rulers 15, for example one ruler on the short side of the moulding tool and one on its long side.
The raw material shown in fig. 2 comprises a carrier 6 comprising sheets of a fibre material impregnated with a first thermosetting plastic material. As an example, the carrier 6 is of sheet moulding compound (SMC). A film pack comprising one or more sheets of film impregnated with a second thermosetting plastic, which in one embodiment may be epoxy, is also incorporated in the raw material. In another embodiment the first and the second thermosetting plastic are the same plastic. In the example in fig. 2 the film pack next to the carrier comprises a film pack of colorant film sheet 7 impregnated with the plastic. The sheet of film 7 is of a brittle material. Outside the colorant sheet of film are a number of sheets of film 8a, 8b, 8c provided with a pattern, in this example 3 pieces forming a decor. This too is made of a brittle material and impregnated with the plastic. Naturally it is possible to conceive of other embodiments with another number of sheets for the decor. Using a plurality of sheets, however, produces a depth in the decor. A sheet of film composed of a thin layer mainly of plastic and forming a wearing layer 9 is arranged furthest out from the carrier.
In order to prevent slipping between sheets of film contained in the film pack during compression, the sheets of film are welded together. In one example, shown in fig. 3, the decor sheets 8a, 8b, 8c are welded together along one of their longitudinal edges; the welding may be carried out, for example, at isolated points. Naturally the remaining sheets in the film pack can also advantageously be included when welding. It is particularly advantageous, however, where more than one decor sheet is used, as in fig. 3, to weld these together. This is because slipping would lead to the decor becoming blurred.
In the diagram of process stages shown in fig. 4 for producing a compression moulded product by means of the moulding tool 1 comprising the two mould halves 3 a, 3b, the continuous line 10 marks the force which is applied to the mould halves 3a, 3b and the dashed line 11 marks the distance between the mould halves 3a, 3b. Before the process commences , the mould halves 3a, 3b are made to move in the opening direction to a first position, whereupon the raw material described in connection with fig. 2 is introduced. The charging of the raw material into the moulding tool preferably occurs rapidly so that the relatively high tool temperature (e.g. 140-160°C) does not cause the sheets in the film pack to begin setting before they have been compressed. The process is then initiated by the mould halves 3a, 3b being made to move in the closing direction to a second position. This is shown by the first downward sloping part of the dashed curve 11.
Thereafter the carrier and the film pack are preheated by the moulding tool in order to make the plastic material in these viscous. The preheating also serves to soften the sheets of the brittle material included in the pack. During preheating a force is applied to the mould halves, in this example approximately 1000 kN, which will be seen from part 10a of the continuous curve 10. As can be seen from the dashed curve 11, during the same period the mould halves come somewhat closer together at the start of the preheating phase. This preheating phase lasts approximately 15 sees and the distance between the mould halves is approximately 5-6 mm (at a height on the pack comprising the carrier and the film pack of approx. 5 mm). In a precompression phase following the preheating phase, a force is applied which is greater than the force applied in the preheating phase, in order to press the two mould halves 3 a, 3b against one another. As is apparent from part 10b of the continuous curve 10, the force in this example is approximately 5400 kN. The precompression lasts approximately 10-15 sees. Precompression causes the viscous carrier material to fill the cavities and setting is initiated, carrier and film pack thereby being chemically combined and residual vapours contained in the carrier and/or the film pack being vaporised.
In order to avoid bubbles forming, the vapours formed are released in a venting phase in that the force applied is released and the mould halves brought somewhat apart. Because of the horizontal compression edges 5 of the moulding tool 1 adequate venting is produced with a significantly smaller gap between the mould halves than if the moulding tool were to have vertical compression edges. The venting phase lasts approximately 5 - 10 sees .
Thereafter in a compression phase force is again applied in order to press the mould halves against one another, In this example the force, marked by part 10c of the continuous curve 10, is the same as the force applied in precompression. This force is applied for approx. 100-120 sees. In the compression phase the cavities of the moulding tool are completely filled and the setting is completed.
Finally the moulding tool 1 is brought into the first position, which is marked by the dashed curve at approximately the 200 sees point, and the product thus produced can be released. The finished product therefore comprises the compression moulded carrier and the film pack integrated therewith. In one example ejector valves (not shown) are arranged with the mould halves in order to remove the product from the tool.
In one example the moulding tool is adapted to be controlled by a control element, which controls the mould halves 3 a, 3b and the press table 14a, 14b so that the process described in connection with fig. 4 is performed. In addition the cavities formed in the mould halves are designed in order to prevent cracking in the brittle sheets as a result of exposure to excessively high tensile forces during compression.
It is possible to imagine many spheres of application for compression moulded products integrated with a film layer described here. In one design, shown in figures 5 ad 6, the products are used as edging strips. In fig. 5 an edging strip 12 has a film covering 12a and a carrier 12b. The carrier part 12b in this design has two projecting parts 12c, 12d. These are adapted to be fitted on a rail 13 comprising a complementary part 13a to the two projecting parts 12c, 12d. The rail 13 may be of a solid material, for example plastic, sheet metal or steel. In fig. 6 the strip 12 is fitted to the rail 13. In one design larger products, obtained by the method in the present invention, are divided into strips after the products have been removed from the moulding tool. There may also be a requirement for the strips to be milled in a finishing stage in order to remove remaining burrs.
It will be obvious to the person skilled in the art that the invention is not confined to the embodiments described above but can rather undergo modifications within the framework of the idea of the invention defined in the following claims. It is possible, for example, to envisage a number of other spheres of application for film-coated products other than strips.

Claims

1. Method for producing a compression moulded product (12) by means of a moulding tool (1) comprising two mould halves (3 a, 3b), at least one of the mould halves (3 a) being adapted to be guided in an opening and a closing direction, characterised in that the method comprises the following stages: ΓÇö inducing the mould halves (3 a, 3b), which are furthermore designed with cavities, to move in the opening direction to a first position,
ΓÇö introducing on the one hand a carrier (6) comprising sheets of a fibre material impregnated with a first thermosetting plastic material and on the other a film pack (7, 8a, 8b, 8c, 9) comprising at least one sheet of film, which includes a second thermosetting plastic material, into the moulding tool,
ΓÇö inducing the mould halves (3 a, 3b) to move in the closing direction to a second position,
ΓÇö preheating the carrier and the film pack by means of the moulding tool (1) in order to make the plastic material in these viscous, ΓÇö applying a first force (10b) in order to press the two mould halves (3a, 3b) against one another so that the viscous carrier material fills the cavities (4a, 4b) of the moulding tool, so that setting is initiated, the carrier (6) and the film pack (7, 8a, 8b, 8c, 9) thereby being chemically combined, and so that residual vapours contained in the carrier and/or the film pack are vaporised, ΓÇö at least substantially reducing the first force, for venting of the vapours formed,
ΓÇö applying a second force (10c) in order to press the two mould halves against one another in order to completely fill the cavities of the moulding tool (1) and to complete the setting and
ΓÇö bringing the moulding tool (1) into the first position and removing of the product thus produced (12), comprising the compression moulded carrier (6) and the film pack (7, 8a, 8b, 8c 9) integrated therewith.
2. Method according to claim 1, characterised in that included in the film pack are at least one sheet of film (7) giving coloration to the film pack, at least one sheet of film (8a, 8b, 8c) provided with patterns and a sheet of film (9) which comprises a layer of essentially the second thermosetting plastic material, forming a wearing layer.
3. Method according to claim 2, characterised in that at least two of the sheets of film included in the film pack are welded together at at least one point before they are inserted into the moulding tool in order to avoid slipping between the sheets during compression.
4. Method according to any of the preceding claims, characterised in that during preheating a third force (10a) is applied in order to press the two mould halves against one another.
5. Compression moulded product, characterised in that it is produced by the method according to claim 1.
6. Compression moulded product according to claim 5, characterised in that the first and the second thermosetting plastic material are the same material.
7. Moulding tool (1) for producing a compression moulded product (12) by compression of a raw material (6, 7, 8a, 8b, 8c, 9), the raw material comprising sheets of a fibre material impregnated with a thermosetting plastic material, which moulding tool (1) comprises:
ΓÇö two mould halves (3a, 3b), of which at least one (3a) is movable between a first position and a second position, the mould halves being adapted to receive the raw material in the first position and essentially to bear against the raw material in the second position,
ΓÇö elements (2a, 2b) adapted to heat the mould halves,
ΓÇö means (14a, 14b) for producing the compression by means of a force adapted to press the mould halves against one another, characterised in that the mould halves (3a, 3b) are furthermore designed with cavities (4a, 4b), adapted to prevent the occurrence during compression of cracks in film, contained in the raw material, of at least one sheet of a brittle material impregnated with thermosetting plastic, and in that the moulding tool is further adapted to be controlled by the control element adapted to perform the following sequence: to guide the mould halves (3a, 3b) from their first position after introduction of the raw material to a second position in which the heating elements (2a, 2b) are adapted to function, to activate the means of compression (14a, 14b) in order from the second position to press the mould halves (3 a, 3b) further together, to move the mould halves apart for venting of vapours formed during compression, to again activate the means of compression (14a, 14b) and finally to move the mould halves to the first position for release of the compression moulded product (12). Moulding tool according to claim 7, characterised in that the tool (1) has horizontal compression edges (5) in order to produce adequate venting.
PCT/SE1998/001330 1997-07-09 1998-07-07 Method of producing a compression moulded product and moulding tool used in performing the method WO1999002326A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702644-7 1997-07-09
SE9702644A SE509775C2 (en) 1997-07-09 1997-07-09 Method for producing a molded product and molding tool used in the practice of the method

Publications (1)

Publication Number Publication Date
WO1999002326A1 true WO1999002326A1 (en) 1999-01-21

Family

ID=20407693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001330 WO1999002326A1 (en) 1997-07-09 1998-07-07 Method of producing a compression moulded product and moulding tool used in performing the method

Country Status (2)

Country Link
SE (1) SE509775C2 (en)
WO (1) WO1999002326A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867670A (en) * 1984-10-10 1989-09-19 Werzalit -Werke J.F. Werz Kg Apparatus for producing press shaped bodies
US5071603A (en) * 1987-12-14 1991-12-10 Kabushiki Kaisha Kobe Seiko Sho Method of controlling hydraulic press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867670A (en) * 1984-10-10 1989-09-19 Werzalit -Werke J.F. Werz Kg Apparatus for producing press shaped bodies
US5071603A (en) * 1987-12-14 1991-12-10 Kabushiki Kaisha Kobe Seiko Sho Method of controlling hydraulic press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP,A,61 287 711 (NISSAN MOTOR CO LTD) 18 December 1986. *

Also Published As

Publication number Publication date
SE9702644L (en) 1999-01-10
SE509775C2 (en) 1999-03-08
SE9702644D0 (en) 1997-07-09

Similar Documents

Publication Publication Date Title
EP1284182B1 (en) Method for forming parts with structural patterns on its surface
US20170072592A1 (en) System and method for manufacturing an article
EP1646492B1 (en) Internal fitting components of motor vehicle elements with a defined surface profile
WO2012085070A1 (en) Process for producing surface-finished lightweight components with high natural fibre content and integrated fastening elements
RU2001105932A (en) METHOD FOR PRODUCING A FORMABLE DOOR COVERING FROM A PLANE WOOD COMPOSITE MATERIAL, DOOR COVERING CREATED BY THIS METHOD, AND MANUFACTURED WITH THIS DOOR
CN101594983A (en) Be used for the method for continuous compression molding and effectively utilize the mould of material
JPH03262607A (en) Molding tool of composite part
DE102011012500B4 (en) Apparatus and method for producing a fiber composite workpiece
US6096251A (en) Method and apparatus for the manufacture of a multilayered object
EP1235679B1 (en) Method for producing components of interior fittings in motor vehicles and corresponding article
EP0363594B1 (en) Method and apparatus for making shaped parts or objects from thermoformable plastics using a deep-drawing technique
WO1999002326A1 (en) Method of producing a compression moulded product and moulding tool used in performing the method
EP1029648B1 (en) Method and blow moulding tool for the manufacture of blow moulded parts having a decorative layer
EP0705680B1 (en) Process for hotforming a plastic laminate sheet
EP2457706A2 (en) Device and method for producing flat laminated components
DE10247301A1 (en) Deep drawing of metal plates, for vehicle components, inserts a heated plate at annealing temperature between the upper and lower dies, to be pressed and the base embossed and be cooled within the press
DE3206905A1 (en) Process for producing reinforced components by means of a vacuum and substrate surfaces; autolaminate method
EP0881070B1 (en) Method for producing a deformably acrylic sheet having improved abrasion and scratch resistance, preferably for a sanitaryarticle produced by thermoforming
DE102012106936A1 (en) Integrated contact heating for thermoplastic bonded mats in the injection mold
DE102017206582A1 (en) Process for the production of components by extrusion
GB2250703A (en) Forming or cutting press tools
WO2008019957A1 (en) Three-dimensional light-emitting component and method for producing said component
EP3613550B1 (en) Method and device for producing a laminated moulded part
DD253787A1 (en) METHOD AND DEVICE FOR BENDING THE FORM OF FORMATABLE PROSTHESES
DE102017111916A1 (en) Method and device for producing a glass element

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase