Rare earth spheroidizing agent series products
One. The brand and chemical composition of yttrium-based rare earth spheroidizing agent for FD series wind turbine are shown in Table 1:
Table 1
| trademark |
chemical composition / % |
Scope of application |
||||||
|
REO* |
Mg |
Ca |
Ba |
Bi/Sb |
Si |
Fe |
||
|
FD-1 |
2.0-2.5 |
6.5-7.5 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin |
QT400-18L QT350-22L |
|
FD-2 |
1.5-2.0 |
6.0-7.0 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin | |
|
FD-3 |
0.5-1.5 |
6.0-7.0 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin | |
|
FD-4 |
2.0-2.5 |
6.5-7.5 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin |
QT 700-2A |
|
FD-5 |
1.5-2.0 |
6.0-7.0 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin | |
|
FD-6 |
0.5-1.5 |
6.0-7.0 |
≤3 | ≤3 |
0.1-0.5 |
44-48 |
margin | |
two. The grades and chemical composition of yttrium-based rare earth spheroidizing agent for DY series thick section castings are shown in Table 2:
Table 2
| trademark |
chemical composition / % |
Scope of application | ||||||
|
REO* |
Mg |
Ca |
Ba |
Bi/Sb |
Si |
Fe |
||
|
DY-1 |
6.0-8.0 |
7.0-9.0 |
≤2 |
≤5 |
≤0.5 |
41-45 |
margin |
Cupola molten iron with high impurity content |
|
DY-2 |
3.5-5.0 |
7.0-9.0 |
≤2 |
≤3 |
≤0.5 |
42-46 |
margin |
Cupola molten iron for ferrite parts |
|
DY-3 |
3.5-5.0 |
7.0-9.0 |
≤2 |
≤3 |
≤0.5 |
42-46 |
margin |
Pearlite parts cupola molten iron |
|
DY-4 |
3.0-4.0 |
6.0-8.0 |
≤2 |
≤3 |
≤0.5 |
42-46 |
margin |
Ferrite parts electric furnace molten iron |
|
DY-5 |
3.5-4.5 |
6.0-8.0 |
≤3 |
≤3 |
≤0.5 |
42-46 |
margin |
Pearlite parts electric furnace molten iron |
|
DY-6 |
2.0-3.0 |
6.0-8.0 |
≤3 |
≤3 |
≤0.5 |
44-48 |
margin |
Low impurity content of ferrite parts, electric furnace molten iron |
|
DY-7 |
2.0-3.0 |
6.0-8.0 |
≤3 |
≤3 |
≤0.5 |
44-48 |
margin |
Low impurity content of pearlite parts, electric furnace molten iron |
|
DY-8 |
0.5-1.5 |
6.0-8.0 |
≤3 |
≤3 |
≤0.5 |
44-48 |
margin |
As-cast high toughness ductile iron and high purity molten iron |
three. The brand and chemical composition of the yttrium-based composite rare earth spheroidizing agent for ZY series medium-sized castings are shown in Table 3:
table 3
| trademark |
chemical composition / % |
Scope of application | ||||||
|
REO* |
Mg |
Ca |
Ba |
Bi/Sb |
Si |
Fe |
||
|
ZY-1 |
5.5-6.5 |
8.0-10 |
≤3 |
≤2 |
≤0.5 |
41-45 |
margin |
Cupola hot metal with high impurity content |
|
ZY-2 |
4.5-5.5 |
7.0-9.0 |
≤3 |
≤2 |
≤0.5 |
41-45 |
margin |
Ferritic Cupola Hot Metal |
|
ZY-3 |
4.5-5.5 |
7.0-9.0 |
≤3 |
≤2 |
≤0.5 |
41-45 |
margin |
Pearlitic Cupola Hot Metal |
|
ZY-4 |
2.5-3.5 |
6.0-8.0 |
≤3 |
≤2 |
≤0.5 |
42-46 |
margin |
Ferrite electric furnace hot metal |
|
ZY-5 |
2.5-3.5 |
6.0-8.0 |
≤3 |
≤2 |
≤0.5 |
42-46 |
margin |
Pearlite electric furnace hot metal |
|
ZY-6 |
1.0-2.0 |
6.0-8.0 |
≤3 |
≤2 |
≤0.5 |
44-48 |
margin |
Low ferrite impurity molten iron in electric furnace |
|
ZY-7 |
1.5-2.5 |
6.0-8.0 |
≤3 |
≤3 |
≤0.5 |
44-48 |
margin |
Low pearlite impurity molten iron in electric furnace |
four. The brand and chemical composition of TZ series of high-quality special nodulizers for medium and small castings are shown in Table 4:
Table 4
| trademark |
chemical composition / % |
|||||
|
REO* |
Mg |
Ca |
Si |
other |
Fe |
|
|
TZ-1 |
0.5-1.5 |
6.0-<7.0 |
1.5-3.0 |
44-48 |
Right amount | margin |
|
TZ-2 |
0.5-1.5 |
7.0-8.0 |
1.5-3.0 |
44-48 |
Right amount | margin |
|
TZ-3 |
1.0-3.0 |
6.5-<7.5 |
1.5-3.0 |
44-48 |
Right amount | margin |
|
TZ-4 |
1.0-3.0 |
7.5-8.5 |
1.5-3.0 |
44-48 |
Right amount | margin |
Fives. The grades and chemical composition of QY series light rare earth spheroidizing agent are shown in Table 5:
table 5
| trademark |
chemical composition / % |
Scope of application | |||||
|
RE0 |
Mg |
Sb/Bi/Ba |
Ca |
Si |
Fe |
||
|
QY-H |
0.3-0.6 |
6.0-7.0 |
Right amount |
1.5-2.5 |
42-47 |
margin | Low impurity electric furnace molten iron |
|
QY-1 |
1.0-3.0 |
5.5-6.5 |
Right amount |
1.0-2.0 |
42-46 |
margin |
Low ferrite impurity molten iron in electric furnace |
|
QY-2 |
1.0-3.0 |
5.5-6.5 |
Right amount |
1.0-2.0 |
42-46 |
margin | Low pearlite impurity molten iron in electric furnace |
|
QY-3 |
1.0-3.0 |
5.5-6.5 |
Right amount |
1.0-2.0 |
42-46 |
margin | Mixed matrix impurity low electric furnace molten iron |
|
QY-4 |
3.5-5.5 |
6.5-7.5 |
Right amount |
1.0-2.0 |
41-45 |
margin | Ferrite electric furnace molten iron |
|
QY-5 |
3.5-5.5 |
6.5-7.5 |
Right amount |
1.0-2.0 |
41-45 |
margin | Pearlite electric furnace molten iron |
|
QY-6 |
3.5-5.5 |
6.5-7.5 |
Right amount |
1.0-2.0 |
41-45 |
margin | Mixed matrix electric furnace molten iron |
six. The particle size range of the product is 5mm～25mm, 5mm～30mm, 8mm～40mm, 10mm～45mm.
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