ALUMINIUM MATERIAL KONSTRUKSI KAPAL

Aluminium oksidaDari Wikipedia Indonesia, ensiklopedia bebas berbahasa Indonesia.

Sel satuan dari corundum

Aluminium oksida adalah sebuah senyawa kimia dari aluminium dan oksigen, dengan rumus kimia Al2O3. Nama mineralnya adalah alumina, dan dalam bidang pertambangan, keramik dan teknik material senyawa ini lebih banyak disebut dengan nama alumina.

Sifat-sifatAluminium oksida adalah insulator (penghambat) panas dan listrik yang baik. Umumnya Al2O3 terdapat dalam bentuk kristalin yang disebut corundum atau α-aluminum oksida. Al2O3 dipakai sebagai bahan abrasif dan sebagai komponen dalam alat pemotong, karena sifat kekerasannya.

Aluminium oksida berperan penting dalam ketahanan logam aluminium terhadap perkaratan dengan udara. Logam aluminium sebenarnya amat mudah bereaksi dengan oksigen di udara. Aluminium bereaksi dengan oksigen membentuk aluminium oksida, yang terbentuk sebagai lapisan tipis yang dengan cepat menutupi permukaan aluminium. Lapisan ini melindungi logam aluminium dari oksidasi lebih lanjut. Ketebalan lapisan ini dapat ditingkatkan melalui proses anodisasi. Beberapa alloy (paduan logam), seperti perunggu aluminium, memanfaatkan sifat ini dengan menambahkan aluminium pada alloy untuk meningkatkan ketahanan terhadap korosi.

Al2O3 yang dihasilkan melalui anodisasi bersifat amorf, namun beberapa proses oksidasi seperti plasma electrolytic oxydation menghasilkan sebagian besar Al2O3 dalam bentuk kristalin, yang meningkatkan kekerasannya.

Proses fabrikasiSecara alami, aluminium oksida terdapat dalam bentuk kristal corundum. Batu mulia rubi dan sapphire tersusun atas corundum dengan warna-warna khas yang disebabkan kadar ketidakmurnian dalam struktur corundum.

Aluminium oksida, atau alumina, merupakan komponen utama dalam bauksit bijih aluminium yang utama. Pabrik alumina terbesar di dunia adalah Alcoa, Alcan, dan Rusal. Perusahaan yang memiliki spesialisasi dalam produksi dari aluminium oksida dan aluminium hidroksida misalnya adalah Alcan dan Almatis. Bijih bauksit terdiri dari Al2O3, Fe2O3, and SiO2 yang tidak murni. Campuran ini dimurnikan terlebih dahulu melalui Proses Bayer:

Al2O3 + 3H2O + 2NaOH + panas → 2NaAl(OH)4

Fe2O3 tidak larut dalam basa yang dihasilkan, sehingga bisa dipisahkan melalui penyaringan. SiO2 larut dalam bentuk silikat Si(OH)6

2-. Ketika cairan yang dihasilkan didinginkan, terjadi endapan Al(OH)3, sedangkan silikat masih larut dalam cairan tersebut. Al(OH)3 yang dihasilkan kemudian dipanaskan

2Al(OH)3 + panas → Al2O3 + 3H2O

Al2O3 yang terbentuk adalah alumina.

Pada 1961, perusahaan General Electric mengembangkan Lucalox, alumina transparan yang digunakan dalam lampu natrium. Pada Agustus 2006, ilmuwan Amerika Serikat yang bekerja untuk 3M berhasil mengembangkan teknik untuk membuat alloy dari aluminium oksida dan unsur-unsur lantanida, untuk memproduksi kaca yang kuat, yang disebut alumina transparan.

PenggunaanSetiap tahunnya, 65 juta ton alumina digunakan, lebih dari 90%-nya digunakan dalam produksi logam aluminium. Aluminium hidroksida digunakan dalam pembuatan bahan kimia pengelolaan air seperti aluminium sulfat, polialuminium klorida, dan natrium aluminat. Berton-ton alumina juga digunakan dalam pembuatan zeolit, pelapisan pigmen titania dan pemadam api.

Aluminium oksida memiliki kekerasan 9 dalam skala Mohr. Hal ini menyebabkannya banyak digunakan sebagai abrasif untuk menggantikan intan yang jauh lebih mahal. Beberapa jenis ampelas, dan pembersih CD/DVD juga menggunakan aluminium oksida.

The RK FRAMEWORKS® ALUMINUM LUMBER® system consists of extruded aluminum beams in different sizes and shapes joined with a variety of connectors. Doors and panels can be added. Feet, wheels, end caps and t-slot covers complete the design.

Here are a few of the advantages that have been designed into Rose+Krieger beams and connectors.     LOAD TRANSMISSIONSecure, flush-fitting, positive-grip connectors create optimum conditions for transmitting loads.

DYNAMIC LOAD ABSORPTIONRose+Krieger offers a dynamic load connector which flexes to absorb dynamic loads caused by vibration, and/or temperature changes. The exclusive RK dynamic load bolt has a tapered neck which flexes at the beam joints, absorbing vibration. This reduces mechanical stresses to occur only in the extrusion t-slots.

RIGID DESIGNNo drilling required to install connectors. Beams are not weakened by drilling or milling to install connectors. Beams are not weakened by drilling or milling to install connectors, as is required with other extrusion systems.

TWIST FREEForged RK Hidden Bracket connectors, combined with RK's exclusive self-aligning t-slots, lock beams together in a tight, twist-free connection.

FAST ASSEMBLYMost connectors require no machining and special assembly tools.

PORTABLEDesigns can be disassembled and reassembled as needed.

LIGHTWEIGTHInternal hollows extruded into the RK Beams reduce weight without sacrificing strength.

 

CLEAN CONNECTIONRK Hidden Bracket Connectors provide an invisible, right angle connection. RK hidden brackets do not interfere with the installation of accessories.

ADD-ON CAPABILITYHundreds of inexpensive t-slot connectors and accesspories allow easy addition of parts, beams, fittings, etc. to existing frames.

DUST PROTECTIONOptional plastic snap-in t-slot strips seal beam t-slots against dust.

PRE-FINISHED SURFACEAnodized beam surface is corrosion-resistant, and scratch free. No additional surface finishingis required.

CHIP COLLECTIONChip collection grooves are designed into RK beams, so there is no clogging during connector installation.

ENVIRONMENTALLY FRIENDLYComponents can be reused or aluminum can be recycled.

 

ALUMUNIUM PROFILE 15MM

15 mm Profiles 

15 x 40 15 x 60 15 x 80 15 x 120

   

Profile 15 x 40

 Tensile

Strength 245 N/mm2

Surface 421 mm2

lx 0.8 cm4

ly 6.6 cm4

lt 7.4 cm4

Wx 1.3 cm3

Wy 3.3 cm3

Weight 1137 g/m

 

 

 

detail x(slot geometry 30)

Uses 30 mm t-slot connectors for T-slots, Use Version 2 connectors for extrusion ends.

Free cutting and assembly. 

Part Number Code Number Finish Length

  4385000 Clear 3 Meters cut to spec.

BEA.1540 4385001 Clear 3 Meter Bar

 

Connection 2 short flange brackets

Required qty. per connection

Code Number

Flange Bracket

Slot Geometry

2 pieces 4386704 15 302 pieces 4386705 15 40

 

 

Profile 15 x 60

 Tensile

Strength 245 N/mm2

Surface 619 mm2

lx 1.2 cm4

ly 21.0 cm4

lt 22.2 cm4

Wx 1.9 cm3

Wy 7.0 cm3

Weight 1670 g/m

 

 

 

 

detail x(slot geometry 30)

       

Uses 30 mm t-slot connectors, Version 2 design for flange bracketsFree cutting and assembly.

 Part Number Code Number Finish Length CAD

  4345000 Clear 3 Meters cut to spec.  BEA.1560 4345001 Clear 3 Meter Bar

 

Connection 2 short flange brackets

Required qty. per connection

Code Number

Flange Bracket

Slot Geometry Connection

2 pieces 4386704 15 30 long2 pieces 4386705 15 40 long

Profile 15 x 80

 Tensile

Strength 245 N/mm2

Surface 823 mm2

lx 1.7 cm4

ly 47.8 cm4

lt 49.5 cm4

Wx 2.5 cm3

Wy 11.9 cm3

Weight 2220 g/m

 

 

 

detail x(slot geometry 30)

     

Uses 30 mm t-slot connectors, Version 2 design for flange brackets.

Free cutting and assembly. 

Part Number Code Number Finish Length CAD

  4355000 Clear 3 Meters cut to spec.  BEA.1580 4355001 Clear 3 Meter Bar

 

Connection 2 short flange brackets

Required qty. per connection

Code Number

Flange Bracket

Slot Geometry Connection

2 pieces 4386704 15 30 long2 pieces 4386705 15 40 long

Profile 15 x 120

 Tensile

Strength 245 N/mm2

Surface 1213 mm2

lx 2.4 cm4

ly 154.9 cm4

lt 157.3 cm4

Wx 3.6 cm3

Wy 25.8 cm3

Weight 3270 g/m

 

 

 

detail x(slot geometry 30)

   

Uses 30 mm t-slot connectors, Version 2 design for flange brackets

Free cutting and assembly. 

Part Number Code Number Finish Length CAD

  4365000 Clear 3 Meters cut to spec.  BEA.1520 4365001 Clear 3 Meter Bar  

 

Connection 2 short flange brackets

Required qty. per connection

Code Number

Flange Bracket

Slot Geometry Connection

2 pieces 4386704 15 30 long2 pieces 4386705 15 40 long

 

Profile 15 x 160

 Tensile

Strength 245 N/mm2

Surface 1602 mm2

lx 3.1 cm4

ly 359.0 cm4

lt 362.1 cm4

Wx 4.8 cm3

Wy 44.9 cm3

Weight 4320 g/m

 

 

 

detail x(slot geometry 30)

 

Uses 30 mm t-slot connectors, Version 2 design for flange brackets.

Free cutting and assembly. 

Part Number Code Number Finish Length CAD

  4375000 Clear 3 Meters cut to spec.  BEA.1560 4375001 Clear 3 Meter Bar

 

Connection 2 short flange brackets

Required qty. per connection

Code Number

Flange Bracket

Slot Geometry Connection

2 pieces 4386704 15 30 long2 pieces 4386705 15 40 long

 

ALUMUNIUM PROFILE 30MM

30 mm Profiles 

F -30x30 F-30x60 F-30x80 F30x100

F30x120 F30x160 F-2G 30x30 F-3G 30x30

F-G 30x30 F-GG 30x30 F-R 30 KL 30x30

KLD 30x30 KLE 30x30 KLW 30x15 KLW 30x30

ALUMINIUM PROFILE 40MM

40 mm Profiles 

F-40x40-L F-40x80 F-40x80-L F-40x120

F -40x160 F-2G 40x40 F-3G 40x40 F-G 40x40

F-GG 40x40 F-GG 40x80 KL-40x40 KLD-40x40

KLE-40x40 KLW-40x15 KLW-40x30 KLW-40x45

KLW-40x60 KLW-40x90 S-40x40 S-40x80

S-R 40 W-40x30 W-40x45 W40x60

     

W-40x90  

ALUMINIUM PROFILE 50MM

50 mm Profiles 

F-50x50 F-50x50-L F-50x100 F-50x200

FG-50x50 FGG-50x50 F-2G 50x50 F-3G 50x50

ALUMINIUM PROFILE 60MM

60 mm Profiles 

F-60x60 F-60x60-1 F-60x60-L F60x120

F-G 60x60 F-GG 60x60 F-2G 60x60 F-3G 60x60

     S-60x60 II    

ALUMINIUM PROFILE 80MM

80 mm Profiles 

F-80x80 F-80x80-2 F-80x80-2L F80x80-L

F-80x120 F-3G 80x120-A F-80x160 F-80x160-L

F-G 80x80 F-GG 80x80 F-2G 80x80 S-80x80

ALUMINIUM PROFILE 100MM

100 mm Profiles 

     

F100x100  

ALUMINIUM PROFILE 120MM

120 mm Profiles 

 

ALUMINIUM SPECIAL PROFILE

Specialty Profiles 

Pillar Profile SP 50x50 Special Profile 2x40 Special Profile 3x40 Special Profile 8x40

Special Profile 15x40 Special Profile 15x60 Special Profile 15x120 Special Profile 15x160

   

Special Profile STP-30 Special Profile STP-40  

ALUMINIUM HEAVY DUTY PROFILE

Heavy Duty Profiles       

D-80x80 D-80x160 D-80x240 D-160x160

       

   

D-160x240 D-160x320

SUMBER : WWW.ROSE-KREIGER.COM

Chongqing Meifan Metal Material Co., Ltd

  

aluminium sheet/plate

[1xxx-8xxx] [China]

Posted Date: October 24, 2007

Free Member  |  Rate this company

 

View more picturesDescriptionNow this is a part of our aluminium sheet/plate exporting catalogue as following:

1) Heat treatment non-reinforced plate & sheet: Alloy: 1xxx, 3xxx, 8xxx series; Temper: O, F, H111, H112, H12, H14, H16, H18, H19, H22, H24, H26 Thickness(mm): 0.2-150; Width(mm): 500-2400; Length(mm): 500-10000 Adopt standard: YS/T91 GB/T3880 GJB1541 GJB2662 ASTM Alloy: 5xxx, series; Temper: O, F, H111, H112, H12, H14, H16, H18, H19, H32, H34, H36, H38, H321 Thickness(mm): 0.2-150; Width(mm): 500-2400; Length(mm): 500-10000 Adopt standard: YS/T91 GB/T3880 GJB1541 GJB2662 ASTM

2) Heat treatment reinforced plate & sheet (pre-stretched plate): Alloy: 2xxx, 6xxx, 7xxx series; Temper: O, F, H111, H112, T3, T4, T6, T7; Thickness(mm): 0.5-200; Width(mm): 1000-2500; Length(mm): 2000-10000 Adopt standard: GB/T3880 GJB1541 GJB2662 ASTM Alloy: 2xxx, 6xxx, 7xxx series; Temper: T351, T451, T651, T851

Thickness(mm): 0.5-200; Width(mm): 1000-2500; Length(mm): 2000-10000 Adopt standard: GJB1741 Q/SWA10204

3) Brazed sheet: Alloy: LQ1, LQ2, LQ3; Temper: O, H32; Thickness(mm): 0.5-2.0; Width(mm): 1000-1800; Length(mm): 2000-10000 Adopt standard: YS/T69

4) Tread plate: Alloy: 1xxx, 3xxx, 5xxx series; Temper: O, H22, H24, H26; Thickness(mm): Bottom thick 1.0~4.0; Width(mm): 1000-1600; Length(mm): 2000-10000 Adopt standard: GB/T3618 Q/EL432

5) Curtain sheet: Alloy: 1xxx, 3xxxx series & 5005, 5052; Temper: O, H14, H24; Thickness(mm): 1.5-4.0; Width(mm): 914-2200; Length(mm): 1500-5500 Adopt standard: YS/T429.1 EL/X282

If you have interest with our products, please contact me directly. Once I've receive your specific requirement, I'll response as soon as possible in order get further communication with you like technical detail, price, payment etc.

Thank you and expect our success business.

younglee-meifan at hotmail dot com

Other Information

Location:  China Minimum Order:   

Price for Minimum Order:   

  (This price is only for minimum order, for large quantities, please contact)

Sample Available:  No 

Related Categories: Non-ferrous Metal, Non-ferrous Metal ProductsRelated Keywords: aluminium, sheet, plate

This company is registered as a free member and is not verified or authenticated by TradeKey.com. Click here to know more about Goldkey and Silverkey membership.

Contact Information

Contact Person:  Mr. Young Lee (Accounting)Company:  Chongqing Meifan Metal Material Co., Ltd

Address:  No.5,30/F,No.27 YuZhou Road, Shiqiaopu District, Chong, China, China

Zip/Postal:  400039Telephone:  86-23-68629028

Fax:  86-23-68629785Mobile:  86-13628399083

   

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