US1849973A - Rolling tube - Google Patents

Rolling tube Download PDF

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Publication number
US1849973A
US1849973A US373040A US37304029A US1849973A US 1849973 A US1849973 A US 1849973A US 373040 A US373040 A US 373040A US 37304029 A US37304029 A US 37304029A US 1849973 A US1849973 A US 1849973A
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US
United States
Prior art keywords
rolls
finishing
pilgering
sizing
tube
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
Application number
US373040A
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English (en)
Inventor
Buchwald Reinhard
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Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1849973A publication Critical patent/US1849973A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills

Definitions

  • the purpose of the present invention is to provide a simple and practical device h means of which simultaneously with the rol ing of a tube and in the same heat the finishing and sizing operation can be carried out.
  • the finishing and sizing rolling mills for Vpilger-rolled tubes used up to the present time are rolling mills with special power drive arranged separately from the pilgerway, that is to say plants which will involve high initial cost and expensive operation as u well as a repeated heating of the tube, irredirectly spective of the large amount of space reuired for the erection of such plants.
  • the present invention consists in that the finishing and sizing rolls actuated by means of rolls are arranged on the pilger housing or in the rear thereof in such a manner, that they will act in longitudinal direction on the mandrel, producing at the same time and in the same heat a tube during the step-wise pilger-method, which will possess smooth interior and exterior surfaces.
  • Figure 1 is a diagrammatic side elevation of the', device for carrying' out the rolling process according to this invention
  • Figure 2 is a rear view.
  • Figures 3 and 4 show in vertical section and in plan a device according to the invention, in vhich the individual parts can be made out, an
  • Figure shows a modification of the arrangement according to Figure 1.
  • a denotes the pilgering rolls operatin m'well known manner and are the finishin or sizin rolls respectively which are free y rotatake and which Will operate as so-called idle rollers, that is to say they are not driven.
  • a represents the pilgered tube located upon a pilgeriug man- 878940, :mi in Germany me 2B, 1028.
  • the sizing and finishing rolls form a eircular closed pass.
  • the rolls are jour- ⁇ nalled in the ilger housing proper or in the rear thereof, ut at any rate rather close, so that the finishing and sizing operation takes 54 place simultaneously and in the same heat as the vpilgering process.
  • Said finishing and sizing operation is carried through in such a manner that the rolls will still operate or roll on the mandrel but the said operation may also be carried out outside of the latter.
  • one pair of rolls maybe A used for sizing and the other pair for the finishing operation.
  • the material advantage of the arrangement according to the present invention consists in that in contradistinction to known arrangements used up to the present high initial ⁇ costs as well as the re-heating furnace Will be dispensed with. Thus there will be u a considerable saving in money time and s ace and besides a superior product will be o tained.
  • tubes which comprises passing a hollow billet upon a mandrel bar between pilgering rolls and then between freely rotatable finishing and sizing rollers With a circular closed pass arranged near the pilgering rolls in such a manner, that the finishing and sizing rollers roll over the pilgering mandrel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US373040A 1928-06-26 1929-06-22 Rolling tube Expired - Lifetime US1849973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE314387X 1928-06-26

Publications (1)

Publication Number Publication Date
US1849973A true US1849973A (en) 1932-03-15

Family

ID=6145644

Family Applications (1)

Application Number Title Priority Date Filing Date
US373040A Expired - Lifetime US1849973A (en) 1928-06-26 1929-06-22 Rolling tube

Country Status (4)

Country Link
US (1) US1849973A (enrdf_load_stackoverflow)
BE (1) BE361842A (enrdf_load_stackoverflow)
FR (1) FR677239A (enrdf_load_stackoverflow)
GB (1) GB314387A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383895A (en) * 1965-08-11 1968-05-21 Hackethal Draht & Kabelwerk Ag Coilable waveguide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383895A (en) * 1965-08-11 1968-05-21 Hackethal Draht & Kabelwerk Ag Coilable waveguide

Also Published As

Publication number Publication date
GB314387A (en) 1930-06-19
BE361842A (enrdf_load_stackoverflow)
FR677239A (fr) 1930-03-05

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