WO2006013842A1 - 加工材及び表面保護シート並びに加工方法 - Google Patents
加工材及び表面保護シート並びに加工方法 Download PDFInfo
- Publication number
- WO2006013842A1 WO2006013842A1 PCT/JP2005/014090 JP2005014090W WO2006013842A1 WO 2006013842 A1 WO2006013842 A1 WO 2006013842A1 JP 2005014090 W JP2005014090 W JP 2005014090W WO 2006013842 A1 WO2006013842 A1 WO 2006013842A1
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- WO
- WIPO (PCT)
- Prior art keywords
- bending
- coefficient
- protective sheet
- surface protective
- thickness
- Prior art date
Links
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Classifications
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1471—Protective layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2804—Next to metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2878—Adhesive compositions including addition polymer from unsaturated monomer
- Y10T428/2891—Adhesive compositions including addition polymer from unsaturated monomer including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
Definitions
- the present invention when a metal plate or the like is punched and Z-shaped or bent, a processed material on which a surface protective sheet for protecting a metal surface is attached, a surface protective sheet and the processed material are used.
- the present invention relates to a machining and / or bending method.
- These surface protective sheets are mainly used in bending processing of metal plates and the like, and are intended to prevent scratches on the metal surface due to contact between the bending mold and the metal plate during processing.
- a punch press is used as a pre-process for the bending force
- the punched dew in the lower die (die) after punching rises as the upper die (punch) for punch press rises.
- the metal scraps rise on the surface of the metal plate or get into the space between the force plate and the die, and the metal plate surface ( In some cases, the upper surface or the lower surface was damaged, such as scratches (this phenomenon is abbreviated as a scumming phenomenon).
- the residue rising phenomenon is that the surface protective sheet is not cut, and the punched residue or the protective sheet itself climbs on the surface of the metal plate. Connected, especially noticeable.
- JP-A-52-50475, JP-A-2000-51966, JP-A-2004-1055, and JP-A-2004-17113 propose dies for the purpose of preventing residue-up. By using the dies proposed for these, the residue rise phenomenon can be reduced.
- the present invention has an object to propose an excellent surface protection sheet and a processing method in the case of bending that does not cause a residue raising phenomenon during punching, and that the substrate is not torn or bent. To do.
- the present invention provides a processed material in which a surface protection sheet is attached to a metal plate used for punching and bending, wherein the surface protection sheet is made of a support base material and has an adhesive layer on one side, and the surface protection sheet Is a work material characterized in that the coefficient (I) obtained from the following formula is 21.0 or less and the coefficient (II) is 4.0 or more.
- the surface protective sheet can suppress the residue rising phenomenon by satisfying the coefficient (I) of 21.0 or less and the coefficient (4.) of 4.0 or more.
- the coefficient (I) of 21.0 or less the coefficient (I) of 4.0 or more.
- FIG. 1 is a schematic explanatory view showing a configuration of a punching die for performing a punching process.
- FIG. 2 is an explanatory view showing the cause of residue rise in punching with a punching die.
- FIG. 3 is a schematic explanatory view showing a configuration of a bending die for performing a bending process.
- the punching process is continuously performed by overlapping a part of the first punching process (this is called follow-up or punching process).
- this is called follow-up or punching process.
- the surface protection sheet may not be completely cut off, resulting in frequent scraping. Occurs.
- a bending cage using a general bending die having a punch (male die, upper die) P2 and a die (female die, lower die) D2
- the workpiece W is placed on the die (die) D2 and the workpiece is bent by pressurizing the predetermined bending position with the upper die (punch) P2.
- the workpiece is folded by this pressurization.
- the bending force is applied to the bending groove from the shoulder (point A) of the die so that the force material slides, causing continuous bending (sliding) scratches in the longitudinal direction. Bending scratches caused product defects.
- bending bending has been used to prevent bending scratches by attaching a surface protection sheet to the force-carrying material.
- the work piece material, plate thickness, bending angle, and type of bending have been used. Since the bending force is applied with various pressures depending on the conditions such as the above, the surface protection sheet may be cut or the metal plate will be bent when the pressure is large.
- the surface protective sheet that can be used in the present invention must satisfy the coefficient obtained from the following formula.
- the “breaking elongation” and “breaking strength” of the surface protective sheet are defined as values measured by the method described later.
- the support base material used for the surface protection sheet used for the punching and bending force of the present invention satisfies both the above conditions (I) of 21.0 or less and the coefficient ( ⁇ ) of 4.0 or more. It must be fulfilled.
- I the above conditions
- ⁇ the coefficient
- the punching process which is the process before the bending force
- the surface protective sheet is thick, the residue rises. Therefore, in the case of a workpiece that has been punched into a workpiece and then bent into that workpiece, by providing both of the factors (1) and ( ⁇ ), the amount of residue during punching is increased. It is possible to prevent both scratches on the metal plate due to the phenomenon and bending scratches when bending.
- the support substrate used in the present invention is a polymer film made of a polymer, for example, a single film.
- Propylene polymers such as monopoly, block and random, ethylene polymers such as low density, high density and linear low density, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, poly It is formed by using one or more of an ester polymer composed of lactic acid and the like, an amide polymer composed of 6_nylon, 6, 6_nylon, 12-nylon and the like.
- the support substrate satisfying the above-mentioned coefficient (I) is preferably a stretched one.
- any filler may be added, cross-linking with an electron beam or the like, multi-layer extrusion or coating of the base material may be used to satisfy the above coefficient (I).
- a support substrate that is particularly preferably used, a biaxially stretched polyester film is preferred from the standpoint of preventing the phenomenon of dregling and bending workability.
- the supporting base material includes anti-blocking agents, lubricants, titanium oxide, organic and inorganic pigments for coloring purposes, and prevention of deterioration.
- anti-blocking agents such as antioxidants, ultraviolet absorbers, light stabilizers and antistatic agents can be blended.
- surface treatment such as corona treatment may be applied to the substrate surface for the purpose of improving the adhesion with the back surface treatment agent, the pressure sensitive adhesive and the undercoat.
- the thickness of the supporting substrate is generally from 0.020 to 0.200 mm, especially from 0.025 to 0.125 mm, but is not limited thereto.
- pressure-sensitive adhesive used for the surface protective sheet known rubber-based pressure-sensitive adhesives, acrylic pressure-sensitive adhesives, polyester-based pressure-sensitive adhesives, and polyurethane-based pressure-sensitive adhesives can be used.
- rubber-based pressure-sensitive adhesives and attalinole-based pressure-sensitive adhesives are preferable from the viewpoints of adhesion to metal plates, releasability, and cost.
- Examples of the rubber-based pressure-sensitive adhesive include natural rubber-based pressure-sensitive adhesives and synthetic rubber-based pressure-sensitive adhesives.
- Synthetic rubber adhesives include polybutadiene, polyisoprene, butyl rubber, polyisobutylene, styrene elastomers such as styrene butadiene styrene block copolymers, styrene 'ethylenebutylene' styrene block copolymers and styrene 'ethylenebutylene' random Styrene elastomers such as copolymers, ethylene propylene rubber, etc. are used as main components.
- acrylic pressure-sensitive adhesives include butyl (meth) acrylate, 2-ethylhexinole (meth) (2) Hydroxyl group-containing monomers, such as 2-hydroxyethyl (meth) acrylate, as a modifying monomer that is mainly composed of alkyl (meth) acrylate, such as acrylate.
- Copolymers of monomer mixtures containing other monomers such as carboxyl group-containing monomers such as (meth) acrylic acid, styrene monomers such as styrene, and butyl esters such as butyl acetate are used.
- the acrylic pressure-sensitive adhesive can be obtained by a conventional polymerization method such as a solution polymerization method, emulsion polymerization method or UV polymerization method.
- a crosslinking agent for example, a crosslinking agent, an adhesive agent, a softener, an olefin resin, a silicone polymer, a liquid acrylic copolymer, a phosphoric ester.
- Light stabilizers such as aging compounds, anti-aging agents, hindered amine light stabilizers, ultraviolet absorbers, and other fillers and pigments such as calcium oxide, magnesium oxide, calcium carbonate, silica, zinc oxide, titanium oxide, etc. It is possible to add various additives.
- the tackifier is effective for improving the adhesive strength, and the amount of the adhesive is as described above from the viewpoint of improving the adhesive strength while avoiding the occurrence of the adhesive residue problem due to the decrease in cohesive strength. 0 to 50 parts by weight per 100 parts by weight, especially 0 to 30 parts by weight, especially 0 to 10 parts by weight are preferred.
- Examples of the tackifier include petroleum resins such as aliphatic and aromatic, aliphatic / aromatic copolymer systems and alicyclic systems, coumarone indene resins, terpene resins, and terpene phenols.
- One or more known appropriate adhesives such as resins, polymerized rosin resins, (alkyl) phenol resins, xylene resins, or hydrogenated resins thereof can be used.
- the blending of the softener is usually effective for improving the adhesive strength.
- the softening agent for example, one or more of low molecular weight gen-based polymers, polyisobutylene, hydrogenated polyisoprene, hydrogenated polybutadiene and derivatives thereof can be used, and the blending amount thereof is appropriate. Although it may be set, it is particularly preferably 0 to 40 parts by weight, especially 0 to 20 parts by weight, especially 0 to 10 parts by weight per 100 parts by weight of the above-mentioned pressure-sensitive adhesive. If the blending amount is 40 parts by weight or more, the adhesive residue becomes remarkable when exposed to high temperatures outdoors.
- the thickness of the pressure-sensitive adhesive layer to be formed is appropriately determined in accordance with the adhesive strength and the like, and is generally 0.001 to 0.050 mm, especially 0.002 to 0.020 mm, especially 0.003 to 0. It is said that it is 010mm.
- Adhesive layer If necessary, a separator or the like can be temporarily attached and protected until it is put to practical use.
- the surface protective sheet is formed by, for example, a method of applying a solution of a pressure-sensitive adhesive composition or a hot melt to a substrate, or transferring a pressure-sensitive adhesive layer formed on a separator according to the method to a support substrate.
- a method of extrusion-coating the adhesive layer forming material on a supporting substrate, a method of co-extruding the substrate and the adhesive layer in two or multiple layers, a method of laminating the adhesive layer on the substrate, or a laminate This is performed in accordance with a known method for forming an adhesive sheet, such as a method of laminating two adhesive layers together with a layer, a method of laminating an adhesive layer and a supporting substrate forming material such as a film or a laminate layer in two or multiple layers, etc. Can do.
- the back surface treatment agent used for the release layer those made of a solvent-based or solvent-free silicone polymer or a long-chain alkyl polymer are generally used.
- a pyrol manufactured by Yushi Co., Ltd.
- Shin-Etsu Silicone manufactured by Shin-Etsu Chemical Co., Ltd.
- the release layer may be formed by a known coating method such as a coating method using a roll coater such as a gravure roll or a spraying method using spray or the like.
- Acrylic system consisting of 30 wt% 2-ethylhexyl acrylate (2EHA), 60 wt% ethyl acrylate (EA) 6 wt% methyl metaacrylate (MMA), 4 wt% 2-hydroxyethyl acrylate (HEA)
- Adhesive polystyrene equivalent weight average molecular weight: 600,000, ethyl acetate solution
- isocyanate cross-linking agent manufactured by Nippon Polyurethane, Coronate L
- Example 3 The surface protective sheet was applied in the same manner as in Example 1 except that the pressure-sensitive adhesive of Example 1 was coated and dried on a support substrate made of 0.038 mm thick biaxially stretched polyester film (Toray Industries, Lumilar S-10). Was made. [0041]
- Example 3 The surface protective sheet was applied in the same manner as in Example 1 except that the pressure-sensitive adhesive of Example 1 was coated and dried on a support substrate made of 0.038 mm thick biaxially stretched polyester film (Toray Industries, Lumilar S-10). Was made.
- a surface protective sheet was prepared in the same manner as in Example 1 except that the pressure-sensitive adhesive of Example 1 was coated and dried on a support base material made of a biaxially stretched polyester film (manufactured by Mitsubishi Plastics Co., Ltd.) having a thickness of 0.075 mm.
- Styrene / ethylene butylene / styrene block copolymer (Asahi Kasei Co., Ltd., Tuftec H106 2) 100 parts by weight of hydrogenated petroleum resin (Arakawa Chemical Co., Ltd., Alcon P-100) 30 parts by weight of rubber
- An adhesive toluene solution
- a support base material made of a biaxially stretched polypropylene film having a thickness of 0.060 mm so that the thickness of the pressure-sensitive adhesive after drying was 0.005 mm, thereby preparing a surface protective sheet.
- the surface protective sheet was applied in the same manner as in Example 1 except that the pressure-sensitive adhesive of Example 1 was coated and dried on a support substrate made of a 0.050 mm thick biaxially stretched polyester film (Toray Industries, Lumilar S-10). Was made.
- the surface protective sheet was applied in the same manner as in Example 1 except that the pressure-sensitive adhesive of Example 1 was coated and dried on a support base composed of a 0.038 mm-thick biaxially stretched polyester film (Lumilar X-20, manufactured by Toray Industries, Inc.). Was made.
- a low-density polyethylene (Petrocene 180, manufactured by Toso Co., Ltd.) was formed into a film at a die temperature of 160 ° C. by an inflation method to produce a support substrate having a thickness of 0.110 mm.
- the pressure-sensitive adhesive side of the supporting substrate was subjected to corona discharge treatment, and then the pressure-sensitive adhesive of Example 1 was applied at a pressure-sensitive adhesive thickness of 0.001 mm after drying.
- a low-density polyethylene (Petrocene 180, manufactured by Toso Co., Ltd.) was formed into a film at a die temperature of 160 ° C. by an inflation method to produce a support base having a thickness of 0.060 mm.
- the pressure-sensitive adhesive side of the supporting substrate was subjected to corona discharge treatment, and then the pressure-sensitive adhesive of Example 1 was applied at a pressure-sensitive adhesive thickness of 0.001 mm after drying.
- a blend consisting of 100 parts by weight of polychlorinated bur resin (average degree of polymerization 1100), 35 parts by weight of dioctyl phthalate and 2 parts by weight of Ba_Zn composite stabilizer was rolled by a calendar method to give a thickness of 0.120 mm.
- a soft salty vinyl resin film was obtained.
- the pressure-sensitive adhesive of Example 1 was applied at a thickness of 0.015 mm after drying.
- Polypropylene (manufactured by Sumitomo Chemical Co., Ltd., Nobrene PP AS171G) was formed by a T-die method at a die temperature of 250 ° C. to prepare a support base having a thickness of 040 mm. Next, the same procedure as in Example 4 was performed except that the pressure-sensitive adhesive of Example 4 was applied and dried so that the thickness after drying was 0.001 mm.
- the tensile test is performed according to JIS K7127 (1999). Samples were measured in the MD direction according to Specimen Type 2 described in JIS K7127, with a chuck interval of 50 mm, a specimen width of 10 mm, and a test speed of 300 mm / min. In addition, an Instron type tensile tester (manufactured by Shimadzu Corporation, Autograph) was used as the tester used for the measurement. The breaking strength and the elongation to be cut can be calculated from the strength and elongation when the surface protective sheet is cut.
- Example 1 Support substrate: biaxially stretched polyester film, thickness 0.100 mm, elongation 205%, breaking strength 360 N / 20 mm
- Support substrate biaxially stretched polyester film: thickness 0.038 mm, elongation 180%, breaking strength 150 N / 20 mm
- Support substrate biaxially stretched polyester film: thickness 0.075 mm, elongation 203%, breaking strength 272 N / 20 mm
- Support base material Biaxially stretched polypropylene film: Thickness 0.060mm, elongation 215%, shear strength 370N / 20mm
- Support base material Biaxially stretched polyester film: Thickness 0.050mm, elongation 232%, breaking strength 217N / 20mm
- Support substrate Biaxially stretched polyester film: Thickness 0.038mm, elongation 140%, breaking strength 136N / 20mm
- Support substrate Low density polyethylene film: Thickness 0.110mm, Elongation 310%, Breaking strength 45N / 20mm
- Supporting substrate Low density polyethylene film: Thickness 0.060mm, elongation 302%, breaking strength 28N / 20mm
- Supporting substrate Soft polychlorinated bule film: Thickness 0.120mm, Elongation 280%, Breaking strength 75N / 20mm
- Support substrate Polypropylene film: Thickness 0.040mm, Elongation 680%, Breaking strength 45N / 20mm
- the bending cab test was performed using a bending die as described above. When the bending force was applied, the surface protective sheet side was brought into contact with the die. At this time, the metal plate material SUS430_2B, A L5052 and SPCC, metal plate thickness 1. Omm and 1.5mm were used, and 90 degree bend was applied to each test material at two locations, 5 pieces each. The bending process conditions were changed, and bending scratches, film tears, and film peeling were confirmed. Each bending condition is as follows. (1) “Bending angle: 90 °” Punch angle: 88 °, Punch cutting edge R: 0.2 mm, Die V width: 10 mm, Die angle: 88 °, Die shoulder R: 0.5 mm, Metal plate thickness 1.0 mm, Metal plate Material SUS430
- Example 1 0.100 360 205 20.5 36.0 0.57 ⁇ O ⁇ Example 2 0.038 150 180 6.9 5.7 1.21 ⁇ O ⁇ Example 3 0.075 272 203 15.2 20.4 0.75 ⁇ ⁇ ⁇ Example 4 0.060 370 215 12.9 22.2 0.58 ⁇ O ⁇ Example 5 0.050 217 232 11.6 10.9 1.06 ⁇ O ⁇ Example 6 0.038 136 140 5.3 5.2 1.02 ⁇ O ⁇ Comparative example 1 0.110 45 310 34.1 5.0 6.82 X ⁇ X Comparative example 2 0.060 28 302 18.1 1.7 10.65 ⁇ XX Comparative example 3 0.120 75 280 33.6 9.0 3.73 X ⁇ X Comparative example 4 0.040 45 680 27.2 1.8 15.11 XXX Comparative example 5 ⁇ One-One ⁇ ⁇ XX
- reducing the coefficient (I) while keeping the thickness of the supporting base material constant means that the elongation at break of the surface protection sheet is reduced, which is caused by the upspin phenomenon caused by punching. This is desirable from the viewpoint of scratch prevention. Therefore, when the breaking elongation of the surface protective sheet is 0 (%), the coefficient (I) is “0”. Therefore, the range of the coefficient (I) is preferably in the range of 0 to 21.0.
- the bending process was evaluated by observing the presence or absence of bending scratches, film tearing and film peeling on the test material after bending, and bending cracking or film tearing or film peeling.
- One of these three parties is in good condition (circle), and the above three parties are in the same state. If it occurred, it was considered defective.
- the bending curve is bad when the coefficient ( ⁇ ) is 1.8 or less, and good when it is 4.0 (5.2) or more. is there. Therefore, the coefficient ( ⁇ ) is 4.0 or more.
- increasing the coefficient (II) while keeping the thickness of the supporting substrate constant means increasing the breaking strength of the surface protective sheet. Therefore, from the viewpoint of bending, it is desirable that the shear strength of the surface protection sheet is increased. By the way, even if the breaking strength is increased so that there is no correlation between the punching process and the breaking strength, the punching does not deteriorate. However, increasing the breaking strength leads to a thicker surface protection sheet. If the surface protection sheet is thick, it affects the accuracy of the engagement between the upper and lower molds during bending, which affects the bending accuracy.
- the upper limit of the coefficient (II) is up to 60 as a range that does not affect the bending accuracy. That is, the range of the coefficient ( ⁇ ⁇ ) is preferably 4.0 to 60.0.
- Such a bending curve that requires an acute angle bending requires a higher bending pressure than the 90 ° bending in the bending curve test, and the bending angle is 35 °, the punch angle and the die angle are 30 ° Others
- the coefficient (II) is preferably 5.3 or more.
- the coefficient (I) is 21.0 or less and the coefficient ( ⁇ ) is 4.0 or more. More desirably, it is desirable to have a range of ⁇ , ⁇ number ( ⁇ ) ⁇ 3.0 to 21.0, and ⁇ number (II) force 4.0 to 60.0. Furthermore, according to the test range, the coefficient (I) is in the range of 5.0 (5.3 to 21.0 (2 0.5) and the coefficient (II) is in the range of 5.0 (5.2) to 36.0. In addition, for a bending case that requires acute bending, the coefficient (II) should be in the range of 5.4 to 36.0. Is desirable.
- the coefficient (II I) obtained from the following formula is 1.5 or less as a material excellent in bending workability and punching workability. More desirably, the coefficient ( ⁇ ) is preferably 0.4 to 1.4. Furthermore, according to the test values, the coefficient ( ⁇ ) should be in the range of 0.5 (0.57) to: 1.3 (1.21).
- the present invention uses a processed material on which a surface protective sheet for protecting a metal surface is pasted, a surface protective sheet and the processed material when punching and / or bending a metal plate or the like. Provide a machining and / or bending method. According to the present invention, it is possible to provide an excellent surface protective sheet and a caulking method that do not cause substrate breakage or bending flaws during bending without the phenomenon of residue rising during punching.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Punching Or Piercing (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05768351T ATE447448T1 (de) | 2004-08-06 | 2005-08-02 | Werkstückmaterial, flächenschutz-flächengebilde und bearbeitungsverfahren |
DE602005017499T DE602005017499D1 (de) | 2004-08-06 | 2005-08-02 | Werkstückmaterial, flächenschutz-flächengebilde und bearbeitungsverfahren |
CN200580026725.7A CN1993193B (zh) | 2004-08-06 | 2005-08-02 | 加工材料、表面保护片材以及加工方法 |
EP05768351A EP1775041B1 (en) | 2004-08-06 | 2005-08-02 | Work subject material, surface protection sheet and method of working |
US11/572,522 US8263220B2 (en) | 2004-08-06 | 2005-08-02 | Work subject material, surface protection sheet and method of working |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004231486 | 2004-08-06 | ||
JP2004-231486 | 2004-08-06 | ||
JP2005-200763 | 2005-07-08 | ||
JP2005200763A JP4668709B2 (ja) | 2004-08-06 | 2005-07-08 | 加工材及び表面保護シート並びに加工方法 |
Publications (1)
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WO2006013842A1 true WO2006013842A1 (ja) | 2006-02-09 |
Family
ID=35787126
Family Applications (1)
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PCT/JP2005/014090 WO2006013842A1 (ja) | 2004-08-06 | 2005-08-02 | 加工材及び表面保護シート並びに加工方法 |
Country Status (9)
Country | Link |
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US (1) | US8263220B2 (ja) |
EP (1) | EP1775041B1 (ja) |
JP (1) | JP4668709B2 (ja) |
KR (1) | KR20070048182A (ja) |
CN (1) | CN1993193B (ja) |
AT (1) | ATE447448T1 (ja) |
DE (1) | DE602005017499D1 (ja) |
TW (1) | TW200611956A (ja) |
WO (1) | WO2006013842A1 (ja) |
Cited By (1)
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CN107267080A (zh) * | 2016-03-31 | 2017-10-20 | 日东电工株式会社 | 表面保护片 |
Families Citing this family (15)
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US20090123740A1 (en) * | 2005-06-27 | 2009-05-14 | Ikkou Hanaki | Surface Protection Sheet for Laser Material Processing |
JP2011116809A (ja) * | 2009-12-01 | 2011-06-16 | Nitto Denko Corp | 表面保護シート |
JP5586928B2 (ja) * | 2009-12-01 | 2014-09-10 | 日東電工株式会社 | 表面保護シート |
JP2011148943A (ja) * | 2010-01-25 | 2011-08-04 | Nitto Denko Corp | 保護シートおよびその利用 |
JP2011168751A (ja) * | 2010-02-22 | 2011-09-01 | Nitto Denko Corp | 表面保護フィルム |
JP2011178879A (ja) * | 2010-03-01 | 2011-09-15 | Nitto Denko Corp | 保護シートおよびその利用 |
TW201134911A (en) * | 2010-03-03 | 2011-10-16 | Nitto Denko Corp | Protective sheet and use thereof |
JP2011201983A (ja) * | 2010-03-25 | 2011-10-13 | Nitto Denko Corp | 表面保護シート用基材および表面保護シート |
GB201114438D0 (en) * | 2011-08-22 | 2011-10-05 | Airbus Operations Ltd | A method of manufacturing an elongate component |
CN102861801B (zh) * | 2012-09-21 | 2015-08-19 | 科瑞自动化技术(苏州)有限公司 | 不锈钢弹片喷砂后折弯机构 |
JP2015140373A (ja) * | 2014-01-28 | 2015-08-03 | フジコピアン株式会社 | 吸着フィルム |
JP2015140375A (ja) * | 2014-01-28 | 2015-08-03 | フジコピアン株式会社 | 吸着フィルム |
CN105690440A (zh) * | 2016-01-29 | 2016-06-22 | 郑建平 | 一种材料智能切割装置 |
CN105690439A (zh) * | 2016-01-29 | 2016-06-22 | 郑建平 | 一种防残连材料切割装置 |
EP3225669B1 (en) | 2016-03-31 | 2020-12-30 | Nitto Denko Corporation | Surface protection sheet |
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US20090123740A1 (en) * | 2005-06-27 | 2009-05-14 | Ikkou Hanaki | Surface Protection Sheet for Laser Material Processing |
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2005
- 2005-07-08 JP JP2005200763A patent/JP4668709B2/ja active Active
- 2005-08-02 WO PCT/JP2005/014090 patent/WO2006013842A1/ja active Application Filing
- 2005-08-02 AT AT05768351T patent/ATE447448T1/de not_active IP Right Cessation
- 2005-08-02 DE DE602005017499T patent/DE602005017499D1/de active Active
- 2005-08-02 EP EP05768351A patent/EP1775041B1/en active Active
- 2005-08-02 US US11/572,522 patent/US8263220B2/en active Active
- 2005-08-02 KR KR1020077002804A patent/KR20070048182A/ko not_active Application Discontinuation
- 2005-08-02 CN CN200580026725.7A patent/CN1993193B/zh active Active
- 2005-08-03 TW TW094126323A patent/TW200611956A/zh unknown
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JPH05239418A (ja) * | 1992-02-26 | 1993-09-17 | Sekisui Chem Co Ltd | 表面保護フィルム |
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CN107267080A (zh) * | 2016-03-31 | 2017-10-20 | 日东电工株式会社 | 表面保护片 |
CN107267080B (zh) * | 2016-03-31 | 2021-09-07 | 日东电工株式会社 | 表面保护片 |
Also Published As
Publication number | Publication date |
---|---|
DE602005017499D1 (de) | 2009-12-17 |
EP1775041A4 (en) | 2008-08-27 |
ATE447448T1 (de) | 2009-11-15 |
US8263220B2 (en) | 2012-09-11 |
EP1775041B1 (en) | 2009-11-04 |
TWI374174B (ja) | 2012-10-11 |
CN1993193B (zh) | 2013-07-10 |
KR20070048182A (ko) | 2007-05-08 |
JP4668709B2 (ja) | 2011-04-13 |
TW200611956A (en) | 2006-04-16 |
EP1775041A1 (en) | 2007-04-18 |
CN1993193A (zh) | 2007-07-04 |
US20080254249A1 (en) | 2008-10-16 |
JP2006069194A (ja) | 2006-03-16 |
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