DE1068436B - Process for the production of raw material for bumper by continuously casting pipe sections - Google Patents

Description

Applicant:

Ironworks Society

Maximilianshütte A.-G.,

Sulzbach-Rosenberg Hut

Dipl.-Ing. Karl Sdiilcher and Hanns-Η. Weber,

Sulzbach-Rosenberg Hut,
have been named as inventors

likewise continuously following the above process or also separately or independently thereof take place.

Pat κ ν TANSP η ociiE.

1. Process for the production of raw material for bumper bars by continuously casting pipe sections, which are deformed after leaving the mold, characterized in that the Strand is so constricted in certain, regular intervals in cross section that this Constriction makes a later dishing of the pipe sections unnecessary.

2. The method according to claim 1, characterized in that the pipe string sections obtained be divided in the middle with both ends constricted, so that two equal sections of the desired shape and length.

Considered publications:
German patent application ρ 38724 VI / 31 c D (published October 25, 1951);

German patent specifications No. 472 054, 750 301.

1 sheet of drawings

Claims (1)

GERMAN The present invention relates to a method for producing raw material for bumper benches Continuous casting of pipe sections. According to the prior art, it is known to deform strands after exiting the casting mold, before they are cut to length. According to the invention, the strand is at certain regular intervals constricted in cross-section so that this constriction causes later dishing of the pipe sections unnecessary. This constriction of the sections takes place in the sense of the invention already during the exit of the pipe string from the casting device or immediately thereafter by means of appropriately arranged Die rings take place continuously. In the embodiment of the invention, the constriction is double the length of the desired end sections performed. Accordingly, constricted double lengths are obtained at both ends. These are in turn divided in the middle according to the invention, so that therefrom two end pieces in the ao desired shape and length are omitted. The advantage of the invention is that, apart from the advantage of the continuous mode of operation, the necessary separation process is coupled with the necessary constriction work, which otherwise on the special upsetting or drawing-in press used for this purpose in a separate operation and again Heating must be made. The drawing explains the above process, for example. The pipe string α exiting the continuous casting plant is constricted by the two-part or multi-part ring matrices f, which in turn can be moved or pressure-controlled in a manner known per se in the direction of the arrow. The constriction can take place as required by the later impact process (in the corresponding impact bench) up to the complete closure of the ring cross-section. It takes place continuously in twice the length of the desired tailpipe sleeve. This double length b is separated from the pipe string by the device c in a likewise continuous process. The pipe sleeve thus obtained, constricted at both ends, is then divided by the separating device d into the two end pipe sleeves e of the same length. This latter operation can be methods of manufacture of raw material for bumper benches by continuous casting of pipe sections