The magnesium is one of the most abundant light metallic elements of the reserves on the earth.Its proportion is lighter by 1/3 even than the aluminium, but its intensity , rigidity have higher than the steel and the aluminium.
The magnesium still has heat conductivity, resisting the electromagnetic shielding and shocking attenuation good characteristic, especially easy regeneration. The magnesium is praised as the green project material in 21st century. The magnesium is applied to such respects as the spaceflight , aviation , war products , automobile , motorcycle , electronic apparatus , electrical home appliances ,etc. extensively and its range of application is still in expanding constantly. Chinese magnesium resources are very abundant, the main producing area is in Shanxi , Henan , Ningxia , Inner Mongol and other places.
This company forms the magnesium spindle production base, monthly output kiloton by cooperating with large-scale enterprise of Shanxi. Magnesium spindle quality is steady, quality testing is strict and the content of metal magnesium reaches or exceeds 99. 9% . We can also offer the magnesium spindle of the metal magnesium of higher content according to the request of user .
Grow the magnesium spindle originally GB/T 3499-2003 Standard
1.Range This standard has stipulated that demand for the magnesium spindle, test method, examines rule, indicates, packs, transports, storage and contract content originally. This standard is suitable for silicon hot law and melts salt to be that thick magnesium that electrolysis produce refine after sublimating producing to catch the magnesium spindle originally. 2. The file of quoting regulatory The clause in the following files through quoting standard and becoming the standard clause.Every note date quote file, its all modification getting single or the revised edition is not apply to this standard afterwards. However, it can use the latest edition of these files to encourage. Every note date quote the file, its latest edition uses in this standard.
GB/T1250 limit number value expression method and method of judging
GB/T8170 number value repairs the rule of inviting
GB/T13748 (all parts) magnesium and chemical analytical method of magnesium alloy
YB/T025 packs and uses the steel band
3 demands 3. 1 trade mark and chemical composition Grow the magnesium spindle originally and is divided into 4 trade marks according to chemical composition: Mg9998, Mg9995, and Mg9980. Its chemical composition should accord with the regulation of form 1.
Chemical composition (the mark of quality) /%
Trade mark
Mg
Not smaller than
Impurity and element Not greater than
Fe
Si
Ni
Cu
Al
Mn
C1
Ti
Pb
Zn
Other individual impurity
Mg9998
99.98
0.002
0.003
0.0005
0.0005
0.004
0.002
0.002
0.001
0.001
-
0.005
Mg9995
99.95
0.003
0.01
0.001
0.002
0.01
0.01
0.003
-
-
0.01
0.005
Mg9990
99.90
0.04
0.02
0.001
0.004
0.02
0.03
0.005
-
-
-
0.01
Mg9980
99.80
0.05
0.03
0.002
0.02
0.05
0.05
0.005
-
-
-
0.05
Note 1: The content of magnesium (the mark of quality) is 100% minus difference of the listed impurity total in the form.
Note 2: Other elements refer to the element symbol listing in this gauge outfit, but has not stipulated the element of the content of number value of limit in this form.
Note 3: Number value is repaired and made an appointment to go on according to the regulation of GB/T8170. Expression and judging that goes on accord to the regulation of GB/T1250 of limit number value.
3. 2 surface quality 3. 2. 1 grows the magnesium spindle surface originally and should be leveled clean, is it remain solvent , insert dreg to have to allow, cold to separate , fly , shrink crackle , is it burn result and other defect that influence use to oxidize, but allow to have mark of repairing. 3. 2. 2 catch magnesium spindles is it pickle to need, water wash, anticorrosion such as being dry deal with originally. Do not allow the surface is it remains sour to have, does not allow having moisture to contract. 3. 3 specifications A weight of spindle form is to grow magnesium originally ： 7.5kg ± 0.5kg 3. 4 other require When the demanding party has special demands in growing chemical composition, surface quality, specification of the magnesium spindliest.., consulted and confirmed by both sides of supply and demand, and in the contract.
