SU1614892A1 - Method of producing and coiling quickly-hardened steel - Google Patents

Abstract

This invention relates to the continuous production of rapidly quenched flexible tapes and their winding into a roll. The goal is to improve the quality of the tape due to the reliability of its capture by a winding device. Before starting the process of fast-hardened tape, a polymer film is fed to the cooling surface and pressed, the end of which is fixed to the core of the winding device. A fast-tempered flexible tape is obtained by supplying liquid metal to the cooling surface, while the cooling tape falls under the film and, together with it, separates from the cooling surface of the drum and is wound into a roll. Before separating the tape, it is ensured that it adheres to the film by the thermoplasticity of the film or by the use of adhesives. 7 hp f-ly, 12 ill.

Description

This invention relates to the continuous production of rapidly quenched flexible tapes and. their coiling in roll.

The aim of the invention is to improve the quality of the tape due to the reliability of its capture by the winding device.

FIG. Figure 1 shows the operation of pressing the film to the cooling surface and attaching it to the core prior to the beginning of the movement of the cooling surface; in fig. 2 - the process of fabrication and winding into a roll of rapidly-hardened tape with the application of a polymer film on it; in fig. 3 is a section A-A in FIG. Ij in FIG. 4 is a section BB in FIG. 2; FIG. 5 - adhesion of the polymer film with a rapidly quenched-. tape with a polymer coating or a quick-drying adhesive that is worn between the film

.and lento th; in fig. 6 - use

plastic film tape adhesive tape; FIG. 7 is a sectional view B-B in FIG. 2.5 6- in FIG. 8 - the use of short strips of a polymer film with subsequent nG and% ™ ° polymer coating; in FIG. 9 is a cross-section of the FIG. eight;

 . °, G - D-Dnafig. eight; in fig. - section EE at

FIG. eight; in fig. 12 - LC section in FIG. eight.

The method is carried out as follows. .

 . A thermoplastic polymer film 4 is fed to the cooling surface I of the drum 2 from the coil 3, which is pressed to the surface I by the rollers 5 and 6. The end of the film 4 is fixed to the core 7 of the winding device by fixing 8. Permanent sec;

about

00

soh

le | This cooling surface 1 is set in motion and accelerated to a cKJQpocTH of 20-40 m / s, depending on the material and thickness of the resulting lazy. A thin layer of melt is cast on the surface 1 of the crucible 9, which hardens rapidly, turning into a ribbon 10 with a thickness of 0.02-0.04 mm and cooling down as it moves up to 100 ° C, after which 4 from the nozzle 11 it is separated from the cooling surface 1. At the same time, having reached the roller 5, lb1nta 10 falls under the polymer

1614892

the coating 16 and the polymer film 4 adhere to it, the feeding of the film 4 can be stopped; this allows the use of the film 4 of a relatively short length for starting the process. Further application of the polymer film is replaced by the application of a polymer coating, for which the very technology of ultrafast Q quenching has all the conditions.

The polymer coating can be applied by spraying polymer particles or by melting the tape 10 itself with a tape.

njjemcy 4. The temperature of the tape 10 in the data, 5 briquettes of thermoplastic polymer,

HQM location above the melting point of the film

K 4 (t T), as a result of film

Paddle also hardens on the way from roller 5 to roller 6 and adheres to tape 10.

After that, from under the roller 6, it is not the free tape 10 that flies out, but is fused with the film 4, which, carries the L (gt 10 behind itself to the core 7 of the winding device,

 In the event of a break in the tape 10, the roll process <RTI ID = 0.0> C1 | 4 </ RTI> continues, since 10 you are putting the broken pieces of tape into the tape that is irregularly supplied to the core 7, on the carrier surface of the polymeric film 4, to the floor. The film 4 itself is capable of withstanding considerable efforts, as well as stretching deformations and bends.

When using polymer p | lesh: and with poor thermal plastic properties between the film 4 | and the tape 10 serves the quick-drying adhesive agent 12 from the feeder 13, KloTopoe should provide adhesion of the Polymeric film 4 with the tape 10 to the Separation of the tape 10 from the cooling surface 1 (Fig. 5).

When using adhesive tape 14 (FIG. 6), it is sufficient to press the tape 14 with one roller 6. In FIG. 6 The example of separating the tape 10 from the cooling surface with a knife 15 is proved.

After the start of the manufacturing process and the winding of the tape into a roll, you can stop the flow of the polymer film with the tape 10 (Fig. 8), but before that you must begin to apply a polymer coating layer on the surface of the tape iftym, for example, pouring the tape onto the surface of the tape 16 from the feeder 13. As a tolt.kszh roller 6 post- # t tape 10 g, h; 1 l polymer

20

25

thirty

35

After winding the tape 10 into a roll, the polymer film can be removed from the tape roll, heating it and holding it at a temperature above the melting point of the polymer. It is advisable to use for this, as a rule, a heat treatment operation for thin ribbons, for example, annealing, i.e. directly during the heat treatment process, the polymer film is melted from a roll. Moreover, the annealing temperature is higher than the melting point of the polymers.

Claims (1)

1. A method of fabricating and winding into a roll of rapidly quenched tape, including moving the cooling surface, supplying it with a melt, forming a fast tape on the surface of the tape, separating the tape from it and winding it into a roll on the winding device, characterized in in order to improve the quality of the tape due to the reliability of its capture by a winding device, a polymer film is fixed on the core of the winding device, fed and pressed to the cooling surface before the melt is fed onto it, dissolved stsep- Leniye polymeric film tape and the separation tape from the cooling surface and its derivatives coiling t together with the plastic film, 40 50 her briquette thermoplastic polymer 0 five 0 five After winding the tape 10 into a roll, the polymer film can be removed from the tape roll, heating it and holding it at a temperature above the melting point of the polymer. It is advisable to use for this, as a rule, a heat treatment operation for thin ribbons, for example, annealing, i.e. directly during the heat treatment process, the polymer film is melted from a roll. Moreover, the annealing temperature is higher than the melting point of the polymers. The simplest way to implement the method is to use commercially available LT adhesive tape up to 95 mm wide and up to 200 m long with a tensile strength of 16 DaN-mm, that Si is 20 times greater than allowable tensile stresses for amorphous (fast quenched) tapes. . Invention Formula 1. A method of fabricating and winding into a roll of rapidly quenched tape, including moving the cooling surface, supplying it with a melt, forming a fast tape on the surface of the tape, separating the tape from it and winding it into a roll on the winding device, characterized in in order to improve the quality of the tape due to the reliability of its capture by a winding device, a polymer film is fixed on the core of the winding device, fed and pressed to the cooling surface before the melt is fed onto it, dissolved stsep- Leniye polymeric film tape and the separation tape from the cooling surface and its derivatives coiling t together with the plastic film, 40 50 1 2 FIG. 7J Yu S 1 FI.5 Fig 6 In In   VJ 1 I „IV- .. lAA - - LLPQ YU FIG. 7 Gd FIG. 9 HER Phage. eleven FIG. in AZ lf w / ft ff W 4 FIG. 12