US 9,999,919 B2 · Method for operating continuous casting machine

Abstract

A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine, the method comprising: withdrawing a slab from a mold while vertically oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of φ according to a value of b so that the following formula (1) satisfies r(0)=0: r(t)=(S/2){sin(ωt+φ)+b cos 2(ωt+φ)+b} (1) where r(t): displacement of the mold (mm), S: vibration stroke of the mold S (mm), ω: angular velocity (=2πf) (rad/s), f: oscillation frequency of the mold (Hz), t: time(s), φ: initial phase (°), and b: non-sine coefficient (0<b≤0.25).

Claims2

Dependent claims

A method for operating a continuous casting machine where a slab is withdrawn from a mold for continuous casting while the mold is oscillated in a vertical direction, the method comprising:

oscillating the mold so as to satisfy the following formula (2) with an oscillation waveform represented by the following formula (1):
[
Math
.
⁢
1
]
r
⁡
(
t
)
=
(
S
/
2
)
⁢
{
sin
⁡
(
ω
⁢
⁢
t
+
φ
)
+
b
⁢
⁢
cos
⁢
⁢
2
⁢
(
ω
⁢
⁢
t
+
φ
)
+
b
}
(
1
)
φ
=
±
tan
-
1
⁢
{
1
2
⁢
(
1
+
16
⁢
b
2
)
-
1
}
(
2
)
wherein r(t) is displacement of the mold (mm),
S is an oscillation stroke of the mold (mm),
ω is angular velocity (=2πf) (rad/s),
f is oscillation frequency of the mold (Hz),
t is time(s),
φ is the initial phase (rad), and
b is a non-sine coefficient (0<b≤0.25).

82 more elements

Dependencies are inferred from the claim text.

Method for operating continuous casting machine

Life of this patent

Method for operating continuous casting machine

Life of this patent

Abstract

Claims2