镁与铝的6个优缺陷对比
Comparison of 6 advantages and disadvantages of magnesium and aluminum
优点
Advantage
1.溶化本钱只要铝的2／3
1. melting costs as long as 2 / 3 of aluminum.
2.压铸出产功率比铝高25％，金属模铸造比铝高300—500K，消失模铸造比铝高200％
2. The output power of die casting is 25% higher than that of aluminum, 300-500K higher than that of metal casting and 200% higher than that of aluminum by EPC.
3.镁铸件的外表质量和外观显着比铝好(由于模具的热载荷减小，可下降查看频率)
3. The appearance quality and appearance of magnesium castings are significantly better than that of aluminum castings (the viewing frequency can be decreased due to the reduction of thermal load on the die).
4.模具寿数是铝的2倍(或更多，依据模腔形状)
4. die life is 2 times that of aluminum (or more, depending on the shape of the die cavity).
5.镁脱棋斜角可很小(可取消随后的机加工)，并且外表成形好(由于镁的粘度低)
5. The diagonal angle of magnesium debarking can be very small (the subsequent machining can be cancelled), and the appearance is well formed (due to the low viscosity of magnesium).

缺点
shortcoming
1.和铝金属模铸造比较，镁压铸出产有较高的残余废料率(和铝压铸废料产出率比较)。
1. Compared with aluminum die casting, magnesium die casting produces higher residual reject rate (and aluminum die casting reject rate).
2.镁压铸的出产设备投资很高。和铝重力／低压／硝模等工艺比，镁压铸机很贵(由于需求较高的锁模力和充型射料速度)，当然它的出产率也是前者的4倍。
2. the investment equipment for magnesium die casting investment is very high. Compared with aluminum gravity / low pressure / nitrate mold process, magnesium die casting machine is very expensive (due to the higher clamping force and filling rate), of course, its yield is four times the former.
3.镁压铸需求较高的试模本钱和较长的试制时刻，而钢制部件(制作选用简略的焊接技能按图加工)或塑料部件(可选用低本钱原型工装)则简略得多。
3. Magnesium die casting requires a higher cost and a longer trial-production time, while steel parts (simple welding skills for drawing) or plastic parts (low-cost prototype tooling is optional) are much simpler.
4.和铝低压或金属模铸造比，镁压铸需求较高的模具本钱。由于压铸模大并杂乱，还要承受高锁模力(当然高出产率也可下降单件产品的本钱)。
4. and aluminum low pressure or metal mold casting ratio, magnesium die casting needs higher mold cost. Due to the large and messy die-casting mold, but also to withstand high locking force (of course, high yield can also reduce the cost of a single product).
5.镁压铸和铝压铸比较，其烧损率要高50K，也就是4％比2％(由于镁的较高的外表活性)。
5. The burning loss rate of magnesium die casting is 50 K higher than that of aluminum die casting, that is, 4% higher than 2% (due to the higher surface activity of magnesium).
6.镁压铸屑片的收回本钱．比铝高，枯燥的镁屑片不简单收回，湿润的就更不简单了，有必要十分当心，避免着火。
6. Magnesium die-casting chip recovery cost. higher than aluminum, dry magnesium chip is not easy to recover, wet is not easy, it is necessary to be very careful to avoid fire.
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