US2171074A - Process for improving the texture of rolled products - Google Patents

Process for improving the texture of rolled products Download PDF

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Publication number
US2171074A
US2171074A US127280A US12728037A US2171074A US 2171074 A US2171074 A US 2171074A US 127280 A US127280 A US 127280A US 12728037 A US12728037 A US 12728037A US 2171074 A US2171074 A US 2171074A
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United States
Prior art keywords
ingot
protrusions
improving
texture
rolled products
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US127280A
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English (en)
Inventor
Bartscherer Franz
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Individual
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Individual
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Publication date
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Publication of US2171074A publication Critical patent/US2171074A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085—Rail sections

Definitions

  • the rolls may also be calibrated in such a manner that the local protrusions of .additional material are formed in an intermediate pass and then during the next pass such high pressure is exerted that these protrusions disappear and moreover the height of the section is reduced. It is, however, preferable to produce the protrusions in the puddle ingot as the ingot can easily be produced in correspondingly shaped chills, and the local protrusions can be arranged so that they disappear at a certain distance from one of the ends of the block, which, it evident, facilitates the feeding, as the rolls first grip the smooth'part of theingot and only thereafter work the protrusions.
  • the drawing shows, by way of example, a manner of carrying out the process in connection with the production of rails, and in which the displacement of the surface crystallites into a parallel position relatively to the surface takes place on the rail head and on the rail base surface.
  • Fig. 1 shows a puddle ingot a with the local protrusions 1) formed by additional material.
  • the ingot After the first pass the ingot has assumed the shape c indicated by dash lines, whereas the hatching shows the places at which the head and base surfaces are situated in the finished product and in which therefore the crystallites are arrangedparallel to the surface.
  • Figs. 2 to 13 show the appearance of the ingot after each additional pass, Fig. 13 showing the finished rail. In all these figures the position of the portions subsequently forming the head and base surfaces are indicated by shaded portions.
  • a method of producing rolled articles more particularly rails and shaped iron sections while improving their structure by disposing the surface crystallites at particular positions in the material being rolled in a position practically parallel to the surface, consisting in forming local protrusions of additional material on twoopposite sides of the ingot, the protrusions being so shaped and located that they disappear at such a distance from one end of the ingot as to facilitate the insertion of the ingot between the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US127280A 1936-02-27 1937-02-23 Process for improving the texture of rolled products Expired - Lifetime US2171074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE480901X 1936-02-27

Publications (1)

Publication Number Publication Date
US2171074A true US2171074A (en) 1939-08-29

Family

ID=6542596

Family Applications (1)

Application Number Title Priority Date Filing Date
US127280A Expired - Lifetime US2171074A (en) 1936-02-27 1937-02-23 Process for improving the texture of rolled products

Country Status (4)

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US (1) US2171074A (enrdf_load_stackoverflow)
BE (1) BE418484A (enrdf_load_stackoverflow)
FR (1) FR814994A (enrdf_load_stackoverflow)
GB (1) GB480901A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217126A1 (fr) * 2000-11-23 2002-06-26 Cogifer TF Voie ferrée pour véhicule guidé et appareil doté d'une telle voie ferrée
US20190382356A1 (en) * 2017-06-02 2019-12-19 Shenyang Research Institute Of Chemical Industry Co., Ltd. Vinylarene derivative and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217126A1 (fr) * 2000-11-23 2002-06-26 Cogifer TF Voie ferrée pour véhicule guidé et appareil doté d'une telle voie ferrée
US20190382356A1 (en) * 2017-06-02 2019-12-19 Shenyang Research Institute Of Chemical Industry Co., Ltd. Vinylarene derivative and application

Also Published As

Publication number Publication date
FR814994A (fr) 1937-07-03
BE418484A (enrdf_load_stackoverflow)
GB480901A (en) 1938-03-02

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