WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1980000804) CASINGS AND PRESSED PARTS UTILIZED FOR THE EXTRUSION OF ARTICLES,PARTICULARLY PIPES,AND MANUFACTURING PROCESS OF SUCH CASINGS AND PRESSED PARTS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000804    International Application No.:    PCT/EP1979/000084
Publication Date: 01.05.1980 International Filing Date: 26.10.1979
IPC:
B22F 3/12 (2006.01), B22F 3/20 (2006.01)
Applicants:
Inventors:
Priority Data:
2846658 26.10.1978 DE
Title (EN) CASINGS AND PRESSED PARTS UTILIZED FOR THE EXTRUSION OF ARTICLES,PARTICULARLY PIPES,AND MANUFACTURING PROCESS OF SUCH CASINGS AND PRESSED PARTS
(FR) BOITIERS ET PIECES EMBOUTIES SERVANT A L"EXTRUSION D"OBJETS EN PARTICULIER DE TUBES, ET PROCEDE DE FABRICATION DE TELS BOITIERS ET PIECES EMBOUTIES
Abstract: front page image
(EN)A casing for isostatically pressed parts, such pressed parts used for the extrusion of metallic objects, in particular metal pipes of stainless steel. The outer and inner envelopes (2, 4) of the casing (1) are comprised of a thin metal sheet; the outer envelope at least has, along its periphery, substantially uniform resistance characteristics in the axial direction and it consists of, particularly, a spiral welded pipe. It is provided, preferably, at least on the front part of the casing an intermediary piece which is made of one or several parts; this piece is obtained from ductile material or from a material obtained by the compression of a powder. It is also provided a process for producing such casings and pressed pieces and a method for extrusion of pipes as well as the pipes obtained by such method.
(FR)Boitier pour des pieces embouties comprimees isostatiquement, ainsi que pieces embouties qui servent a l"extrusion d"objets metalliques, en particulier de tubes metalliques en acier inoxydable. Les enveloppes exterieure et interieure (2, 4) du boitier (1) sont composees d"une tole a paroi mince; l"enveloppe exterieure au moins presente, le long de sa circonference, des proprietes de resistance a peu pres uniformes dans la direction axiale et elle consiste, en particulier, en un tube soude en spirale. Il est prevu, de preference, au moins a la partie frontale du boitier, une piece intercalaire qui est faite en une ou plusieurs parties; cette piece etant obtenue a partir d"une matiere ductile ou a partir d"une matiere issue de la compression d"une poudre. L"invention concerne egalement un procede, de fabrication de ces boitiers et de ces pieces embouties et un procece d"extrusion des tubes ainsi que les tubes obtenus par ce procede.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)