JPS58181454A - Production of thin metallic strip - Google Patents

Abstract

PURPOSE:To prevent the damage on the surface of a rotary roll and to obtain a thin metallic strip having the excellent surface characteristics by stripping the thin strip formed by ejecting molten metal onto the surface of the roll and cooling the molten metal to solidify after keeping the strip in contact with the roll until the roll rotates at a specified angle. CONSTITUTION:Molten metal 4 is ejected through a nozzle 3 onto the surface of a roll 1 under rotation. The thin strip 5 formed by cooling the molten metal to solidify is kept in contact with the surface of the roll 1 until the roll 1 rotates >=90 deg. from the point where the molten metal is ejected. The strip 5 is stripped from the surface of the roll 1 with a high pressure gas or a scraper 6 until the roll 1 rotates 270 deg.. The strip 5 having the excellent surface characteristics is obtained by the above-mentioned method without failure of the scraper 6 and the damage on the surface of the roll 1.

Description

[Detailed Description of the Invention] This relates to a method of producing a thin ribbon directly by melt knitting by melting and solidifying Si using gamma hot water. This prevents sunburn.

Conventionally, methods such as the single σ roll method, twin roll method, and disk method are known for producing amorphous @hard 4 and Fuso C2. , t+'e-Si-Al
It is also used in the 4 zone 1 of their lmtA construction materials.

As shown in Fig. 1, the one-a-ru method is to turn one f in the direction of the arrow.
Rearrange the crucible (2) with the nozzle (3) at the F end on top of the maple roll (1). The crucible (2)
Uchi no Hime IIIK Reiougi (4)? Roll i from nozzle (3)
Let it cool and solidify on the surface of l+, and directly connect the valley from I+41 to Sogen 4 zone (5)? The crucible and nozzle G2 are made of quartz, graphite, alumina, magnetite, perilla, or boron nitride depending on the melting field, and the shape of the nozzle opening is as follows: A type, elliptical type, slit type, porous type, etc. are used depending on the type.

This one-roll method is widely used because f7tII& is an intermediate die and a 4-layer roll with a thickness of several tens of microns can be made by a simple operation. In this method, in order to spread a good 4-zone, it is necessary to have extremely poor malleability between the m-water and the roll.
41-1 occurs, and the superficial 4-dog of the 4th zone is evil ItlL, and the c-roaring nature is 艉, and as shown in the 5J2 diagram, the 4-borrow (5) and the roll (11) are directly spread from t4-1. The shoulder length! becomes longer, and in some cases, the four bands wrap around the roll surface and pass through the 18th ejection point again.

As shown in Figure 1g3+a+, as shown in Figure 3+a+, spray pressurized gas in the direction of the arrow between the 1st and 4th bands (5), or
Or roll ill and ribbon 1 as shown in Figure 3(b) (2)
51 +1 with soufrei (6) and roll +11
Am 4*+51 from the surface. Generally, the molten metal spouting nozzle (3) is located at the center of the roll (1). A
- until the wheel rotates 900 revolutions, i.e.

Separation occurs from the bath m spouting point to the position where the rotation angle σ of the roll is 90''.However, in the case of a high bath/m!If, /9I is insufficiently removed and the pressurized gas is completely blown out. As a result, there was a drawback that the surface properties of the 4th band were poor.Also, when aming with a souffle bar, the 4th band is hazy, so the 4th band is loaded with the tip of the souffle bar (facing the roll). When it was created, the - was celebrated as a striped 1 on the 4-Wi side, which was extremely disadvantageous when Shiho Zhu Yi was required.

The present invention is based on this, and as a result of extensive research, cup-p combination B,
Fe-9i combination, Fe-8t-A1 combination l1 non-1
'+1! I'M4'f"'e1 Many catfishes roll on the surface of the roll, and are easily exposed to pressure gas, soufflever, etc. Due to the roll face up to 14?Hani 14 and lx and 4.
The tower will pass through the ejection point of the storage area again, and in the case of a total of 4 with a thickness of 40μ or more, the 4 bands in Table 4 of the roll will correspond to the rotation angle θ of the roll. When the rotation angle U becomes 9 tl' or more, the shoulder l+
I found out that fljA + vine has a fairly low torque, and as a result of history, I was able to prevent the no-field on the roll surface, and I was able to get 4 and 4 with a collapsed table 1. We have developed a method for splitting the 44 belts that can be rolled.

That is, 1 the present invention is as follows:
In K, he takes out A-san and makes him do ℃ cooling pictures 1, and then IJ from the bathtub! In the method of cutting the 7II44 belt,
The spouted and solidified 4-4 coat on the roll surface was brought into contact with the roll surface from the bathing point until the roll rotated more than 90 degrees, and the l''-4 band was rolled until it rotated 2700 degrees. It is characterized by being peeled off from the surface, and as shown in Figure 4, it is spouted onto the surface of the roll ti+ by rotating it in the direction of the arrow through the nozzle 3). .

The cooled and solidified 4-band (5) is tied to the surface of the roll (5) from the 4-metal spouting point until the roll il+ rotates at least 90°, and the rotation angle 0 of the roll (1) becomes at least 90°. until the roll 11) has rotated 270', i.e.
By the time the rotation angle θ of the roll il+ reaches 270°, the damage to the roll surface is reduced by peeling the roll with high pressure gas or souffle bar (6) from the surface of the roll (12). It didn't work, and I got a 4-year-old boy with a crushed surface.

Therefore, the 4 strips of jet solidified hot water were applied to the roll surface until the roll rotated 90 degrees or more, and were peeled off from the roll surface until the roll rotated 270 degrees. However, when d is less than 90°, the cooling of 41 tr is a non-light component, and not only does the surface roughness of the ribbon become low, but also the roll surface (easily molded). If θ becomes 270° or more, there is a risk that the peeled rays and rays of the crucible or crucibles will be damaged, and the 4th band that has been arrogant will not be wrapped. This is because space is limited when doing so.

Surface 1 In the present invention, an example in which a pressure gas or a souffle bar is used for the peeling 4 has been described, but the invention is not limited to this. If it is d, 4f', 4-,
ψ- until the roll is 9 oua upper 41T on the roll surface, and 2701 times the a-ru table thi
By further peeling, it is possible to improve the surface properties of the crushed four bands without using high-pressure gas or souffle bars.

In addition, in the present invention, in order to maintain the 4-coat in a position where the 4-coat is removed from the roll surface, the 4-coat is in contact with the surface of the roll (1) as shown in FIG. 5(a). Either spray gas from the gas nozzle (7) provided toward the band (5) or press the surface of the II band 1514f [7 -ra+81+=,,
c IJ a-le 11+) Table = i: Press or as shown in No. 512!3tC1 a-le Il+ 7
1@i: The 4, 5, and 5) which were flapped were passed to the ten ν Yon roller (9), and the 4 belt was pressed against the surface of the roll il+ by the belt σ, and the 4 belt was dripped. ? Alternatively, a souffle bar (6) may be provided as shown in the figure.

Hereinafter, the non-invention will be explained with reference to the examples. Practical Example 11
+ Copper roll E with outer diameter of 250 stitches, -〇, 5 over, length 1O
Outer diameter 2UJI to keep al+ slit-shaped nozzle at F end
11 quartz crucible is marked, and C〇-8i-
6υI is inserted into the heat exchanger, melted by high-frequency heat, and jetted out through the nozzle onto a steel roll spinning at a long distance of 280υrpm, cooling and solidifying it until the rotation angle of the roll is 180°. The four solidified bands were peeled off from the roll by installing a phosphor blue scraper directly on the side, and the thickness was 0.48 mm.
μ, d/41o, 2 songs? Manufactured. 10 4
The surface properties of the strip were excellent, and no ril spots occurred on the souffle bar, and no hot water was observed on the surface of the souffle bar.

For comparison, the 4th belt that was solidified in II? At the position where the rotation angle of the roll is 45°, the souffle bar @can
The tip of the souffle bar was damaged by full cutting after the bowl was started, and 4
The surface properties of the prefecture are At, <, fi<, and a-le μ
In s, the positive of Endenman+lJJ was Akira E's ``Runo ga Adidara J''.

g, mshi1(2) 斗1杢3υ01の-aAiD-)L'klnee 7 o
, sm, slit-shaped nozzle with a length of 20 threads, 44-
[An A lead crucible with an outer diameter of 70M? 1st fix, Cu-7%P combined wave in the transfer crucible? 5υOI was applied, and the nozzle was heated using high-frequency transmission heating to eject onto a steel harmonic roll rotating at a speed of 100υrpm, and the four solidified bands were cooled and solidified at the roll rotation angle. Using a steel scraper at 180° position C, one roll was taken from the A-ring to the A-can, and the four strips were rolled out at -20,5 J1. c, f) Ivy.

For comparison, when 4 strips were peeled off from the roll surface at a roll rotation angle of 45°, the 4 strips were superior, with 1 strip of clothing, 1 river, and 1 gyu-bushi. However, the surface of the roll had a minus mark in the circumferential direction. In addition, when I made SA attack on 4 □'4 from the roll surface at the 280° position of the roll rotation, the total of 4 was 1 envy frequency, A
I was concerned with the SV mouth heating coil, and although it was good, no fX error was observed.

Thus, according to the present invention, the soufflé bar? Damaged Shitari,
Roll table 1111i? 4 zones with a soaked surface texture are carried out without digging 1f, and especially the winding residue 1d is installed.

k'e-8i-A1 The structure of the long length of the temple is now 6 easy, and the tension applied to the 4 bands at the time of the 4 emperors does not directly act on the solidified part. 1) Young fruits are held by the force of 4 belts and 1 roll.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of the conventional single-roll method for applying double-layered skin, Fig. 2 is an explanatory diagram showing a situation in which four-striping is applied using the same roll & Fig. 3 (ta) (b) shows 4+ stages of peeling of 4 strips in S in the same piece roll method! I) is a sieve gas, (0) is an explanatory diagram showing four-band stripping using a souffle bar, and Figure 4 is an explanatory diagram showing an example of the wire manufacturing method of the present invention. 85
Figures ta), tbl, (C1 are the other -v1j?small explanatory diagrams-C of the present production method, respectively. 1. Roll 2. Crucible 3.
5 Him・＾Mizotai 6 Screver Fig. 1 Fig. 2
Figure 3 (al (b) Figure 4 Figure 5 (a) (b) (C)

Claims (1)

[Claims] In the method of forming a zone directly from the melt field by jetting high-grade melt onto the surface of a rotating 11 hard *m roll and letting it cool and solidify, the melt is jetted onto the roll surface and cooled and solidified. A method for manufacturing a 4-band belt, which is characterized by contacting the 4-band belt with the roll surface until the roll rotates 90 degrees or more from the bath spouting point, and peeling the 4-band cloth from the roll surface until the roll rotates 270 degrees.