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 Company Profile and History |
Copper and Copper Alloy Products |
Magnesium Alloy Products |
Research and Development |
Introducing our facilities |
Contact us |
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Ring/Plate
Copper and Brass Rings Alminum Rings Stainless steel Rings Plate Copper and Brass Rings
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| Using a 1000ton forging press and rolling mills, hot-forged rings are manufactured. Large-diameter seamless rings 1500mm in outside diameter at maximum can be produced. |
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| ฃCopper Ring |
Example of Use
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| ฃCopper Ring:Motor Rotor |
TypesEChemical compositioni%j
| Types | Alloy No. | Chemical composition | ||||
| Cu | Pb | Fe | Sn | Zn | ||
| Oxygen-free copper | C1020 | 99.96 | | | | | | | | |
| Tough pitch copper | C1100 | 99.90 | | | | | | | | |
| Free-cutting brass | C3604 | 57.0` 61.0 |
1.8` 37 |
0.50 | Fe+Sn 1.2 |
rem. |
| Forging brass | C3712 | 58.0` 62.0 |
0.25` 1.2 |
Fe{Sn 0.8 | rem. | |
| Naval brass | C4622 | 61.0` 64.0 |
0.30 | 0.20 | 0.7` 1.5 |
rem. |
Manufacturing process
1,000ton forging press จ@ring rolling mill@จ@lathe@จ@inspection@จ@shipping
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| @ฃ1000ton forging press |
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| @ฃRing rolling mill |
Integrated production to finish-machining !
Cutting of copper, brass, aluminum, titanium, stainless steel, and heat-resistant steel is possible.
In-house finish-machning using NC lathes and machining centers.
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| ฃMachined product |
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Aluminum Rings
| Gonda's alminum rings provide the stable microstructure because they are
manufactured by hot forging and ring rolling as well mill rolling. |
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| ฃAluminum Rings |
Example of Use
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| ฃAluminumRing:Connecting Parts for Aluminum Tank |
TypesECemical composition(%)
| Types | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
| 5083 | 0.40 less |
0.40 less |
0.10 less |
0.4 ` less |
0.4 ` 4.9 |
0.05 ` 0.25 |
0.25 less |
0.15 less |
rem. |
| 5052 | 0.25 less |
0.40 less |
0.10 less |
0.10 less |
2.2 ` 2.8 |
0.15 ` 0.35 |
0.10 less |
\ | rem. |
| 6061 | 0.40 ` 0.80 |
0.7 less |
0.15 ` 0.40 |
0.15 less |
0.8 ` 1.2 |
0.04 ` 0.35 |
0.25 less |
0.15 less |
rem. |
| Size(mm): | Between 700mm and 300mm in outside diameter. However, the size varies slightly in accord with wall thickness. Contact our expert staff for the detail. |
| Features: | Gonda's rings are free of any strain after finishing because rings undergo hot forging and ring-mill processing. |
Manufacturing process
1,000ton forging press จ ring rolling mill จ lathe จ inspection จ shipping
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Stainless steel Rings
| Seamless stainless steel rings are available by hot forging. Ask our expert
staff for manufacturing retainer rings with stringent inside diameter tolerances. |
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| @ฃStainless steel Rings |
Example of Use
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| @ฃMotor roto |
MaterialEChemical compositioni%j
| types | Cu | Si | Mn | P | S | Hi | Cr | Mr | V | Ti | Al | B |
| SUS304 | 0.08 or less |
1.00 or less |
2.00 or less |
0.045 or less |
0.030 or less |
8.00 ` 10.50 |
18.00 ` 20.00 |
\ | \ | \ | \ | \ |
| SUS303 | 0.15 or less |
1.00 or less |
2.00 or less |
0.20 or less |
0.15 or less |
8.00 ` 10.00 |
17.00 ` 19.00 |
\ | \ | \ | \ | \ |
| SUH660 | 0.08 or less |
1.00 or less |
2.00 or less |
0.040 or less |
0.030 or less |
24.00 `27.00 |
13.50 `16.00 |
1.00 ` 1.50 |
0.10 ` 0.50 |
1.90 ` 2.35 |
0.35 or less |
0.001 ` 0.010 |
Range of sizes
up to 450mm in outside diameter
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Plate
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| @ฃCircular@Plate |
| Without
obtaining approval of Gonda Metal Industry Co., Ltd. beforehand, users have no
right to copy, distribute or reprint all or any part of the information, image
or the contents of this website. Moreover, please contact to the Administration Division (E-mail: :webmaster@gondametal.co.jp) for the link to this site beforehand. Copyright(C) 2008 Gonda Metal Industry Co., Ltd. All Rights Reserved. |
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