SU722616A1 - Rolled stock production method - Google Patents

Rolled stock production method Download PDF

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Publication number
SU722616A1
SU722616A1 SU782565958A SU2565958A SU722616A1 SU 722616 A1 SU722616 A1 SU 722616A1 SU 782565958 A SU782565958 A SU 782565958A SU 2565958 A SU2565958 A SU 2565958A SU 722616 A1 SU722616 A1 SU 722616A1
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SU
USSR - Soviet Union
Prior art keywords
rolls
roll
carried out
profiles
separation
Prior art date
Application number
SU782565958A
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Russian (ru)
Inventor
Юлиан Михайлович Чуманов
Григорий Митрофанович Шульгин
Юрий Петрович Ляшенко
Вячеслав Фуатович Губайдулин
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Донецкий Ордена Трудового Красного Знамени Политехнический Институт
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Priority to SU782565958A priority Critical patent/SU722616A1/en
Application granted granted Critical
Publication of SU722616A1 publication Critical patent/SU722616A1/en

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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
    • B21B1/0815—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 from flat-rolled products, e.g. by longitudinal shearing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Description

(54) СПОСОБ ПРОИЗВОДСТВА ПРОКАТА(54) METHOD OF MANUFACTURING ROLLS

в предчистовом пропуске производ т, не выпуска  конец раската из валков. Такой способ формировани  недоката целесообразно примен ть при последовательном расположении клетей стана и последующем разделении во второй клети. В случае реверсивной прокатки в одной клети после формировани  недоката развод т валки и выпускают его на заднюю сторону стана.in the pre-production pass, the roll out of rolls is not released. This method of forming the under-rolled is advisable to use with the sequential arrangement of the mill stands and the subsequent separation in the second stand. In the case of reversible rolling in one stand after forming the under-rolled, rolls are made and released to the back side of the mill.

Разделение раската производ т двум  способами:The separation of the roll is made in two ways:

в чистовой калибр задают недокат, при -/том передн   его часть остаетс  неразделенной на длине 100 мм, соответствующей длине участка с толщиной перемычки 8мм;in the finishing gauge, the undershot is set, at - / tom the front part remains unseparated at a length of 100 mm, corresponding to the length of the section with a jumper thickness of 8 mm;

раскат из предчистового калибра с толщиной перемычки 3 мм задают в чистовой калибр . После прохождени  переднего конца ,|,г|инон ШОмм валки.свод т, производ  раз„меление профилей. Этот способ целесообразпо примен ть при наличии в клети скоростных нажимных винтов.Peal from pre-caliber with a jumper thickness of 3 mm is set in the finishing caliber. After passing through the front end, |, g | inon SHOWM roll, the arbor is produced, the profiles are divided. This method is advisable to apply when there are high-speed pressure screws in the cage.

Оптимальным значением длины неразделенной части  вл етс  норма обрези дл  данного типоразмера профил  и марки стали. В св зи с тем, что это значение очень сложно выдержать при формировании недоката и при разделении, предлагаетс  интервал 0,5 --1,5 длины обрези.The optimal length of the undivided part is the cut rate for a given frame size and steel grade. Due to the fact that this value is very difficult to withstand during the formation of the under-rolled and during the separation, a range of 0.5-1.5 cut length is proposed.

Если величина неразделенной части будет меньше 0,5 длины обрези, то может произойти разделение на этом участке за счет вли ни  внешних зон. При значении большем 1,5 длины обрези приходитс  или увеличивать обрезь или удал ть перемычки после обрезани  конца, например, газокислородными резаками. И то, и другое  вл етс  экономически нецелесообразным.If the value of the undivided part is less than 0.5 of the length of the cut, then separation in this area may occur due to the influence of the external zones. With a value greater than 1.5, the length of the trim must either increase the trim or remove the jumpers after trimming the end, for example, with oxy-fuel cutters. Both are economically impractical.

Claims (5)

Формула изобретени Invention Formula . Способ производства проката, преимущественно на реверсивном стане, включающий прокатку профилей в многоручьевых калибрах и их разделение, отличающийс  тем, что, с целью улучшени  качества профилей путем устранени  серповидности и скручивани  отдельных профилей, по меньшей мере один из концов раската на длине равной 0,5-1,5 (преимущественно 0,8-0,9) длины концевой обрези оставл ют неразделенным , а окончательное разделение производ т вне валков.. The method of producing rolled metal, mainly on a reversing mill, including rolling profiles in multi-grooved calibers and separating them, characterized in that, in order to improve the quality of the profiles by eliminating crescent and twisting individual profiles, at least one of the ends of the roll is 0.5 in length -1.5 (predominantly 0.8-0.9) lengths of the end trim are left undivided, and the final separation is performed outside the rolls. 2.Способ по п. 1, отличающийс  тем, что реверс перед чистовым пропуском осуществл ют при наличии конца раската в валках.2. A method according to claim 1, characterized in that the reverse before the finishing pass is carried out in the presence of a roll end in the rolls. 3.Способ по п. 1 отличающийс  тем, что перед чистовым пропуском формируют недокат и выдают его из валков после их разведени .3. The method according to claim 1, characterized in that prior to the finishing pass, a non-rolling is formed and passed out of the rolls after their dilution. 4.Способ по п. 1, отличающийс  тем, что разделение осуществл ют после прохождени  переднего конца раската путем сведени  валков.4. A method according to claim 1, characterized in that the separation is carried out after passing the front end of the roll by converting the rolls. 5.Способ по п. 1 отличающийс  тем, что окончательное разделение производ т путем отрезани  неразделенной части раската.5. A method according to claim 1, characterized in that the final separation is carried out by cutting off the undivided part of the roll. Источники информации, прин тые во внимание при экспертизе 1. Авторское свидетельство СССР по за вке № 2494401/02, кл. В 21 В 1/02, 1977.Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2494401/02, cl. B 21 B 1/02, 1977.
SU782565958A 1978-01-25 1978-01-25 Rolled stock production method SU722616A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782565958A SU722616A1 (en) 1978-01-25 1978-01-25 Rolled stock production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782565958A SU722616A1 (en) 1978-01-25 1978-01-25 Rolled stock production method

Publications (1)

Publication Number Publication Date
SU722616A1 true SU722616A1 (en) 1980-04-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU782565958A SU722616A1 (en) 1978-01-25 1978-01-25 Rolled stock production method

Country Status (1)

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SU (1) SU722616A1 (en)

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