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1. 发明专利

DE4131382A1 Surface treated aluminium@ alloy sheet for motor car construction - used in making decorative coloured items, zinc phosphate layer having fine grained structure of uniform thickness 未知
公开(公告)号：DE4131382A1
公开(公告)日：1992-03-26
申请号：DE4131382
申请日：1991-09-20
申请人： KOBE STEEL LTD , MAZDA MOTOR
发明人： TOYOSE KIKURO , FUJIMOTO HIDEO , TSURUNO AKIHIRO , NAKATSUKASA MIKIO , MIYAZAKI NAOHARU
IPC分类号： C23C22/36 , C23C22/78 , C23F1/20
摘要： Two stage process is used for surface treatment of an Al/Mg alloy sheet (3.5-5% by wt. Mg) to improve properties on phosphating, and also ways of using this sheet in making motor car components. In the first stage the sheet is surface cleaned by washing in a weak alkali (e.g. Na phosphate) soln. so that the oxide layer is removed and the surface Mg content falls in the range 0.035-0.5%, then in the phosphating soln. the plate is subjected to the effects of a soln. which has a free fluoride content of 75-800 ppm. USE/ADVANTAGE - Gives fine crystalline Zn phosphate layer of uniform thickness and high corrosion resistance. The coated plate can take colouring and be made into decorative car parts, e.g. mud guards. In an example, an alloy sheet was dipped (for 2 mins.) in a weak alkali (pH 10.5) at 40 deg.C; then 2 mins. in a Ti colloid soln. (1.5 g/l) at room temp.; and finally phosphate dipped (2 mins.) in a Zn phosphate soln. at 42 deg.C. This gave a fine grained Zn phosphate plating on the alloy sheet. Corrosion testing over a long period in salt water spray and other tests in different environmental humidities and temps. in competition with commercially available alternatives showed expected improvement.

2. 发明专利

JPH04214835A ALUMINUM ALLOY SURFACE CONTROL BOARD FOR AUTOMOBILE PANEL AND ITS MANUFACTURE 失效
公开(公告)号：JPH04214835A
公开(公告)日：1992-08-05
申请号：JP4293391
申请日：1991-02-15
申请人： KOBE STEEL LTD , MAZDA MOTOR
发明人： TOYOSE KIKURO , FUJIMOTO HIDEO , TSURUNO AKIHIRO , NAKAMU MIKIRO , MIYAZAKI NAOHARU
IPC分类号： B62D25/02 , B62D29/00 , C22C21/06 , C23C22/12 , C23C22/36 , C23C22/78 , C23G1/22
摘要： PURPOSE:To offer an aluminum allay sheet material excellent in zinc phosphate treatability and corrosion resistance after coating. CONSTITUTION:In an aluminum allay sheet contg. 3.5 to 5wt.% Mg, by regulating the Mg/Al ratio in the surface area to the range of 0.035 to 0.5, an aluminum alloy surface control board for an automobile panel excellent in zinc phosphate treatability and corrosion resistance can be obtd. As for its manufacturing method, an aluminum allay sheet having the above componental compsn. is washed by using an alkaline aq. soln. to regulate the Mn/Al, in the surface area to the range of 0.035 to 0.5. Its zinc phosphate treatability is remarkable in the case of a zinc phosphate bath contg. 75 to 800ppm free fluorine. Zinc phosphate treatment is applied as the substrate of coating, and it is suitable as the material applied to an automobile panel material such as a hood, a fender or the like.

3. 发明专利

DE69119138D1 未知
公开(公告)号：DE69119138D1
公开(公告)日：1996-06-05
申请号：DE69119138
申请日：1991-02-26
申请人： NIPPON PAINT CO LTD , MAZDA MOTOR
发明人： NAKATSUKASA MIKIO , MIYAZAKI NAOHARU , YOSHIDA YUICHI
IPC分类号： C25D13/20 , C23C22/36
摘要： The present invention relates to a phosphating method and solution for forming on a metal surface a phosphate film, which are used for elevating coating finish and rust-preventive property when a product consisting essentially of steel and/or zinc-plated steel combined with an aluminum alloy is coated with cationic electrocoating. The method and solution comprise that said metal surface is brought, to form a coating film, in contact with an aqueous phosphate solution which satisfies the following conditions with respect to the six kinds of ions contained. A total concentration of a sodium ion and a potassium ion is in a range of 2.0 to 15.0 ( g/l ). A total concentration of a manganese ion and a nickel ion is in a range of 1.0 to 5.0 ( g/l ) . Concentration of a zinc ion is in a range of ( 1.6 - 0.02 T ) to ( 2.5 - 0.02 T ) ( g/l ). Concentration of a free F ion is in a range of 8.0 T to 20.0 T ( g/l ), ( here, T is temperature ( DEG C ) of a phosphating solution and in a range of 20 to 60 ). Contact of the metal surface with the phosphate solution is carried out with a combined process of dipping treatment subsequently followed by spraying treatment.

4. 发明专利

DE69119138T2 未知
公开(公告)号：DE69119138T2
公开(公告)日：1996-08-14
申请号：DE69119138
申请日：1991-02-26
申请人： NIPPON PAINT CO LTD , MAZDA MOTOR
发明人： NAKATSUKASA MIKIO , MIYAZAKI NAOHARU , YOSHIDA YUICHI
IPC分类号： C25D13/20 , C23C22/36
摘要： The present invention relates to a phosphating method and solution for forming on a metal surface a phosphate film, which are used for elevating coating finish and rust-preventive property when a product consisting essentially of steel and/or zinc-plated steel combined with an aluminum alloy is coated with cationic electrocoating. The method and solution comprise that said metal surface is brought, to form a coating film, in contact with an aqueous phosphate solution which satisfies the following conditions with respect to the six kinds of ions contained. A total concentration of a sodium ion and a potassium ion is in a range of 2.0 to 15.0 ( g/l ). A total concentration of a manganese ion and a nickel ion is in a range of 1.0 to 5.0 ( g/l ) . Concentration of a zinc ion is in a range of ( 1.6 - 0.02 T ) to ( 2.5 - 0.02 T ) ( g/l ). Concentration of a free F ion is in a range of 8.0 T to 20.0 T ( g/l ), ( here, T is temperature ( DEG C ) of a phosphating solution and in a range of 20 to 60 ). Contact of the metal surface with the phosphate solution is carried out with a combined process of dipping treatment subsequently followed by spraying treatment.

5. 发明专利

JPH09263644A RUBBER MEMBER AND ITS MOLDING 失效
公开(公告)号：JPH09263644A
公开(公告)日：1997-10-07
申请号：JP7774796
申请日：1996-03-29
申请人： MAZDA MOTOR
发明人： HARA MASAO , MIYAZAKI NAOHARU , TAKAHASHI TOSHITAKA
IPC分类号： C08J5/00 , B29D99/00 , B29K105/04 , B29K105/22 , C08J5/10 , B29D31/00
摘要： PROBLEM TO BE SOLVED: To obtain a rubber member controlled of oxidizing substances to prescribed values or less and capable of preventing the oxidation of metal pieces contained in coating films with rubber members and useful as the weather strip of an automobile, etc. SOLUTION: The contents of oxidizing substances contained in a rubber member brought into contact with a coating film containing metal pieces are controlled to prescribed values or less. The metal pieces are preferably aluminum pieces, and the oxidizing substance is preferably urea. The urea is preferably contained on the average in an amount of

6. 发明专利

JPH0931664A FORMATION OF CORROSION RESISTANT COATING FILM ON MAGNESIUM ALLOY MEMBER 失效
公开(公告)号：JPH0931664A
公开(公告)日：1997-02-04
申请号：JP18737495
申请日：1995-07-24
申请人： MAZDA MOTOR
发明人： MIYAZAKI NAOHARU
IPC分类号： B05D3/10 , B05D7/14 , B05D7/24 , C23C22/12
摘要： PROBLEM TO BE SOLVED: To provide a method for forming a corrosion resistant coating film by which superior corrosion resistance can be imparted to an Mg alloy member by an easy method. SOLUTION: An Mg alloy member contg. 4.0-10.5wt.% Al is subjected to zinc phosphate treatment with a zinc phosphate treating soln. contg. 0.5-2.0g/L Zn ions, 0.1-3.0g/L Mn ions, 5-40g/L phosphate ions and 0.05-3g/L fluoride ions derived from a fluorine compd. and then the member is coated with a silicone coating material made of silicone rubber.

7. 发明专利

JPH07204577A FORMATION OF HIGHLY CORROSION-RESISTANT COATING FILM ON MAGNESIUM ALLOY MATERIAL 失效
公开(公告)号：JPH07204577A
公开(公告)日：1995-08-08
申请号：JP398794
申请日：1994-01-19
申请人： MAZDA MOTOR , NIPPON PAINT CO LTD
发明人： YAMAMOTO YUKIO , FUJITA MAKOTO , MIYAZAKI NAOHARU , HIRAHARA SHOJI , MAKINO TAKU , KAWASAKI ISAO
IPC分类号： B05D3/10 , B05D7/14 , B05D7/24 , C22C23/00 , C23C22/00 , C23C22/18 , C23C22/24 , C23C28/00
摘要： PURPOSE:To form a coating film onto a magnesium alloy material which exhibits satisfactory corrosion resistance not only in the salt-spray test(SST) but also in the combined corrosion cycle test(CCT). CONSTITUTION:This magnesium alloy material contg.

8. 发明专利

JPH0924338A FORMATION OF HIGH CORROSION RESISTANT COATING FILM FOR MAGNESIUM ALLOY MATERIAL 失效
公开(公告)号：JPH0924338A
公开(公告)日：1997-01-28
申请号：JP17248795
申请日：1995-07-07
申请人： MAZDA MOTOR , NIPPON PAINT CO LTD
发明人： MIYAZAKI NAOHARU , YAMAMOTO YUKIO , SHINOMIYA MITSUO , BODA TAMOTSU , INABA HIROSHI , TERADA SADAO
IPC分类号： B05D3/10 , B05D7/14 , B05D7/24 , C22C23/02 , C23C22/12 , C23C22/18 , C23C22/36 , C25D13/20
摘要： PROBLEM TO BE SOLVED: To provide a magnesium alloy material formable by forging, by imparting excellent corrosion resistance to the magnesium alloy material. SOLUTION: This magnesium alloy material is composed of an alloy composition consisting of 4.0-10.5wt.% Al,

9. 发明专利

JPH0533154A CHEMICAL CONVERSION TREATMENT 失效
公开(公告)号：JPH0533154A
公开(公告)日：1993-02-09
申请号：JP21142491
申请日：1991-07-30
申请人： MAZDA MOTOR
发明人： MIYAZAKI NAOHARU
IPC分类号： B05D3/10 , B05D3/14 , C23C22/07 , C23C22/36 , C23C22/73 , C23C22/83 , C25D11/36
摘要： PURPOSE:To chemically covert steel and aluminum at the same time by uniformly depositing a crystal excellent in adhesion and corrosion resistance on the surface, ground part and edge of the aluminum under the conditions where the steel and aluminum are mixed almost in the same amt. as on the steel. CONSTITUTION:Test pieces 10a and 10b formed respectively from a steel sheet and aluminum sheet are suspended from a supporting rod 16 and dipped in a liq. tank 20 storing a zinc phosphate soln. 18 contg. fluorine for simultaneous chemical conversion treatment. The test pieces 10a and 10b are dipped in the soln., ordinary chemical conversion treatment is carried out for one minute, the electrolytic chemical conversion treatment is conducted for one minute with the test pieces 10a and 10b as the cathodes, and the upper limit of the current value is controlled to 3 A in this case.

10. 发明专利

JP2002224619A METHOD OF REPAIRING COATING FILM AND BASE MATERIAL HAVING COATING FILM OBTAINED BY METHOD OF REPAIRING COATING FILM 失效
公开(公告)号：JP2002224619A
公开(公告)日：2002-08-13
申请号：JP2001027344
申请日：2001-02-02
申请人： NIPPON PAINT CO LTD , MAZDA MOTOR
发明人： HAYASE TAMIKI , OBATA YUSAKU , MIYAZAKI NAOHARU , YONAIYAMA KOICHI
IPC分类号： B05D7/14 , B05D1/36
摘要： PROBLEM TO BE SOLVED: To provide a method of repairing a coating film, by which the time necessary for repair-coating a conventional coating film of an automobile is shortened, an excellent appearance smooth and free from cratering or pin hole is attained and which is suitably used particularly for minor repair when the defect of the coating film is relatively small. SOLUTION: In the method of repairing the coating film using a repair clear coating material having

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