鋅合金錠
- 產品規格：鋅合金2, 3, 4, 5, 7, 8, 12號料(中鋼鋁)
- 應用領域：鋅合金的主要增加元素有鋁、銅和鎂等。鋅合金按加工工藝可分為「形變鋅合金」與「鑄造鋅合金」兩類，鑄造鋅合金流動性和耐腐蝕性較好，適用于壓鑄儀表，汽車零件外殼等。
鋅合金錠是以純鋅為原料，依照國際標準或特殊要求添加其他元素，改善純鋅在鑄造性、化學性及物理性的不足而調配出來的合金。適用於鑄造並能使鑄件有好的表現。
International
Standard Compositions of Zinc Die-casting Alloys
壓鑄鋅合金國際標準成份
|
Designation
通用牌號 |
No.2(%)
|
No.3(%)
|
No.4(%)
|
No.5(%)
|
No.7(%)
|
ZA-8(%)
|
ZA-12(%)
|
ZA-27(%)
|
|
Aluminum (Al)
鋁
|
3.9-4.3
|
3.9-4.3
|
3.9-4.32
|
3.9-4.3
|
3.9-4.3
|
8.2-8.8
|
10.8-11.5
|
25.5-28.0
|
|
Magnesium(Mg)
鎂
|
0.025-0.05
|
0.025-0.05
|
0.025-0.05
|
0.03-0.06
|
0.010-0.02
|
0.020-0.030
|
0.020-0.030
|
0.012-0.020
|
|
Copper (Cu)
銅
|
2.6-2.9
|
0.10max
|
0.3-0.4max
|
0.75-1.25
|
0.10max
|
0.8-1.3
|
0.5-1.2
|
2.0-2.5
|
|
Lead (Pb)
鉛
|
0.004max
|
0.004max
|
0.004max
|
0.004max
|
0.002max
|
0.005max
|
0.005max
|
0.005max
|
|
Cadmium (Cd)
鎘
|
0.003max
|
0.003max
|
0.003max
|
0.003max
|
0.002max
|
0.005max
|
0.005max
|
0.005max
|
|
Tin (Sn)
鍚
|
0.002max
|
0.002max
|
0.002max
|
0.002max
|
0.001max
|
0.002max
|
0.002max
|
0.002max
|
|
Iron (Fe)
鐵
|
0.075max
|
0.075max
|
0.075max
|
0.075max
|
0.075max
|
0.065max
|
0.065max
|
0.072max
|
|
Nickel (Ni)
鎳
|
-
|
-
|
-
|
-
|
0.005-0.020
|
-
|
-
|
-
|
Physical
Properties of Zinc Alloys
鋅合金物理特性
|
Designation
通用牌號
|
No.2(%)
|
No.3(%)
|
No.4(%)
|
No.5(%)
|
No.7(%)
|
ZA-8(%)
|
ZA-12(%)
|
ZA-27(%)
|
|
Density(g/cm)
密度
|
6.6
|
6.6
|
6.6
|
6.6
|
6.6
|
6.3
|
6.0
|
5.0
|
|
Melting Range(C)
溶點
|
379-390
|
381-387
|
380-386
|
380-386
|
381-387
|
375-404
|
377-432
|
376-484
|
|
Electrical Conductivity
(%IACS) 電導率 |
25
|
27
|
26-27
|
26
|
27
|
27.7
|
28.3
|
29.7
|
|
Thermal Conductivity(100c,W/m.k)
熱傳導率 |
104.7
|
113
|
180.9-113.0
|
108.9
|
11.3
|
114.7
|
116.1
|
125.5
|
|
Coefficient of Thermal Expansion(20-100c,um/mm/c)
熬膨脹系數 |
27.8
|
27.4
|
27.4
|
27.4
|
27.4
|
23.3
|
24.2
|
26.0
|
|
Specific Heat(J/kg.k)
比熱
|
418.7
|
418.7
|
418.7
|
418.7
|
418.7
|
435.4
|
448.0
|
534.4
|
|
Die Shrinkage(mm/mm)
縮模率 |
0.006
|
0.006
|
0.007
|
0.006
|
0.006
|
0.007
|
0.0075
|
0.008
|
Mechanical
Properties of Zinc Alloys
鋅合金機械特性
|
Designation
通用牌號 |
No.2(%)
|
No.3(%)
|
No.4(%)
|
No.5(%)
|
No.7(%)
|
ZA-8(%)
|
ZA-12(%)
|
ZA-27(%)
|
|||
|
Meehanical Properties
機械特性
|
Die Cast
壓鑄 |
Die Cast
壓鑄 |
Die Cast
壓鑄 |
Die Cast
壓鑄 |
Die Cast
壓鑄 |
Die Cast
壓鑄 |
Sand Cast
壓鑄 |
Die Cast
壓鑄 |
Sand Cast
壓鑄 |
Die Cast
壓鑄 |
Sand Cast
壓鑄 |
|
Ultimate Tensile Strength(Mpa)
極限抗拉強度 |
359
|
283
|
317
|
331
|
283
|
372
|
248-276
|
400
|
276-317
|
421
|
400-440
|
|
Impact Strength(J)
沖擊應力 |
47
|
58
|
61
|
65
|
58
|
42
|
20
|
28
|
25
|
-
|
47
|
|
Elongation(%)
延伸系數 |
7
|
10
|
7
|
7
|
13
|
6-10
|
1-2
|
4-7
|
1-3
|
1-3
|
3-6
|
|
Hardness(HB)
布氏硬度 |
100
|
82
|
92
|
91
|
80
|
95-110
|
80-90
|
95-115
|
90-105
|
105-125
|
110-120
|
|
Shear Strength(MPa)
抗剪強度 |
317
|
214
|
214-262
|
262
|
262
|
275
|
-
|
275
|
-
|
296
|
255
|
|
Yield Strength(0.2%,MPa)
屈服強度 |
-
|
-
|
221-269
|
-
|
-
|
290
|
200
|
317
|
207
|
365
|
365
|
|
Fatigue Strength Rotary Bend
(5x10 cycle,MPa) 抗勞損強度 |
58.6
|
47.6
|
48-57
|
56.5
|
-
|
-
|
-
|
-
|
103.5
|
-
|
172.5
|
|
Compressive Strength
(0.1%m,MPa) 壓力屈服強度 |
641
|
414
|
414-600
|
600
|
600
|
252
|
199
|
252
|
199
|
269
|
227
|