主要用途:
镁合金牺牲阳极适用于地下及淡水中的输油、输气、供排水管线、地下电缆、化工、通讯、港湾、船舶、水库闸门等工程的防腐保护
■ 执行标准:
GB/T 17731-2004 ASTM B 843-1995
化学成份
| 牌号 | 化学成份（%） | |||||||
| 合金元素 | 杂质元素不大于 | |||||||
| Al | Zn | Mn | Mg | Fe | Cu | Ni | Si | |
| MGAZ1 | 5.3-6.7 | 2.5-3.5 | 0.15-0.6 | 余量 | 0.005 | 0.01 | 0.001 | 0.05 |
| MGAZ2 | 2.7-3.5 | 0.7-1.3 | 0.15-0.6 | 余量 | 0.005 | 0.01 | 0.001 | 0.05 |
| MGM | <0.05 | <0.03 | 1.2-2.0 | 余量 | 0.005 | 0.02 | 0.001 | 0.05 |
| MG | <0.02 | <0.03 | <0.01 | >99.9 | 0.005 | 0.004 | 0.001 | 0.01 |
| 性能种类 指标 | 开路电位 -V(SCE) |
工作电位 -V(SCE) |
实际电容量A·h/kg | 电流效率 % |
溶解状况 |
| 普通镁合金阳极 | ≥1.50 | ≥1.45 | ≥1200 | ≥55 | 腐蚀产物容易脱落,表面溶解均匀. |
| 镁锰合金阳极 | ≥1.70 | ≥1.6 | ≥880 | ≥40 | |
| 高负电位镁合金阳极 | ≥1.85 | ≥1.75 | ≥1000 | ≥50 |
型号 |
镁重kg | 规格(长×宽×高mm) | |
| MG-4 | 4±0.2 | 350×(75+85) ×80 | |
| MG-8 | 8±0.2 | 700×(75+85) ×80 | |
| MG-11 | 11±0.3 | 700×(90+100) ×90 | |
| MG-14 | 14±0.3 | 700×(100+110) ×105 | |
| MG-22 | 22±0.5 | 700×(130+150) ×125 |
镯式镁合金牺牲阳极
| MD-114 | 60 ×185×115×60 | 5.5 | |
| MD-59 | 260 ×230×160 ×80 | 7.0 | |
| MD-219 | 260 ×290×220×115 | 9.0 | |
| MD-273 | 260 ×344×274×140 | 11.0 | |
| MD-323 | 260 ×395×325×170 | 13.0 |
D型阳极规格
型号 |
重量Kg(ib) | 镁牺牲阳极mm(inch) | |||
| A | B | C | |||
| 9D2 | 4.082(9) | 69.9(23/4) | 549.3(215/8) | 76.2(3) | |
| 14D2 | 6.350(14) | 69.9(23/4) | 850.9(331/2) | 76.2(3) | |
| 20D2 | 9.072(20) | 69.9(23/4) | 1212.9(473/4) | 76.2(3) | |
| 9D3 | 4.082(9) | 88.9(31/2) | 352.4(137/8) | 95.3(3 3/4) | |
| 17D3 | 7.711(17) | 88.9(31/2) | 641.4(251/4) | 95.3(3 3/4) | |
| 32D5 | 14.515(32) | 139.7(51/2) | 504.8(197/8) | 146.1(5 3/4) | |
| 48D5 | 21.772(48) | 139.7(51/2) | 765.2(301/8) | 146.1(5 3/4) | |
| 60D4 | 27.216(60) | 114.3(41/2) | 114.3(41/2) | 1460.5(57 1/2) | |
S型阳极规格
型号 |
重量 | 阳极规格 英寸(豪米) | ||||
| A | B | C | D | |||
| 3S3 | 1.4(3) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 4.7(119.4) | |
| 5S3 | 2.3(5) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 7.7(195.6) | |
| 9S2 | 4.1(9) | 2 4/5(71.1) | 2(50.8) | 2(50.8) | 28(711.2) | |
| 9S3 | 4.1(9) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 13.6(345.4) | |
| 17S2 | 7.7(17) | 2 4/5(71.1) | 2(50.8) | 2(50.8) | 52.5(1333.5) | |
| 17S3 | 7.7(17) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 25.6(650.2) | |
| 17S4 | 7.7(17) | 4(101.6) | 3 1/5(81.3) | 4(101.6) | 18(457.2) | |
| 20S2 | 9.1(20) | 2 4/5(71.1) | 2(50.8) | 2(50.8) | 62(1574.8) | |
| 32S3 | 14.5(32) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 47(1193.8) | |
| 32S5 | 14.5(32) | 5(127.0) | 4 1/5(106.7) | 5(127.0) | 21.2(538.5) | |
| 40S3 | 18.1(40) | 3 4/5(96.5) | 3(76.2) | 3(76.2) | 60(1524.0) | |
| 48S5 | 21.8(48) | 5(127.0) | 4 1/5(106.7) | 5(127.0) | 31.5(800.1) | |
| 60S4 | 27.2(60) | 4(101.6) | 3 1/5(81.3) | 4(101.6) | 62(1574.8) | |
