RU96107089A - METHOD FOR MANUFACTURING STEEP BENT ELBOWS - Google Patents

METHOD FOR MANUFACTURING STEEP BENT ELBOWS

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Publication number
RU96107089A
RU96107089A RU96107089/02A RU96107089A RU96107089A RU 96107089 A RU96107089 A RU 96107089A RU 96107089/02 A RU96107089/02 A RU 96107089/02A RU 96107089 A RU96107089 A RU 96107089A RU 96107089 A RU96107089 A RU 96107089A
Authority
RU
Russia
Prior art keywords
section
horn
manufacturing
shaped core
midline
Prior art date
Application number
RU96107089/02A
Other languages
Russian (ru)
Other versions
RU2096113C1 (en
Inventor
В.В. Гедеонов
А.В. Милосердов
К.Л. Тассов
Original Assignee
Товарищество с ограниченной ответственностью "Научно-производственное предприятие "ТОР М"
Filing date
Publication date
Application filed by Товарищество с ограниченной ответственностью "Научно-производственное предприятие "ТОР М" filed Critical Товарищество с ограниченной ответственностью "Научно-производственное предприятие "ТОР М"
Priority to RU96107089A priority Critical patent/RU2096113C1/en
Priority claimed from RU96107089A external-priority patent/RU2096113C1/en
Application granted granted Critical
Publication of RU2096113C1 publication Critical patent/RU2096113C1/en
Publication of RU96107089A publication Critical patent/RU96107089A/en

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Claims (1)

Способ изготовления крутоизогнутых отводов путем силового проталкивания нагретой трубной заготовки по рогообразному сердечнику с переменным поперечным сечением, отличающийся тем, что максимальное деформирование осуществляют в начальном сечении формообразующего участка, а в дальнейшем деформирование производят с переменной скоростью, которую выбирают из соотношения
Figure 00000001

где t=4l/3lо-l4/3l 4 о ,
и соответственно
v - скорость деформации в текущем сечении формообразующего участка, l/мм;
v0 - скорость деформации в начальном сечении формообразующего участка, l/мм;
k - коэффициент пропорциональности;
D - внутренний диаметр отвода, мм;
d - наружный диаметр заготовки, мм;
S - толщина стенки заготовки и отвода, мм;
l - текущая длина средней линии рогообразного сердечника, мм;
l0 - длина средней линии рогообразного сердечника, мм.A method of manufacturing steeply bent bends by force pushing a heated tube billet through a horn-shaped core with a variable cross section, characterized in that the maximum deformation is carried out in the initial section of the forming section, and then the deformation is carried out at a variable speed, which is selected from the ratio
Figure 00000001

where t = 4l / 3l o -l 4 / 3l 4 about ,
and correspondingly
v is the strain rate in the current section of the forming section, l / mm;
v 0 - strain rate in the initial section of the forming section, l / mm;
k is the coefficient of proportionality;
D is the inner diameter of the tap, mm;
d is the outer diameter of the workpiece, mm;
S is the wall thickness of the workpiece and branch, mm;
l is the current length of the midline of the horn-shaped core, mm;
l 0 - the length of the midline of the horn-shaped core, mm
RU96107089A 1996-04-10 1996-04-10 Method of making sharply bent branch pipes RU2096113C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96107089A RU2096113C1 (en) 1996-04-10 1996-04-10 Method of making sharply bent branch pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96107089A RU2096113C1 (en) 1996-04-10 1996-04-10 Method of making sharply bent branch pipes

Publications (2)

Publication Number Publication Date
RU2096113C1 RU2096113C1 (en) 1997-11-20
RU96107089A true RU96107089A (en) 1998-03-10

Family

ID=20179246

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96107089A RU2096113C1 (en) 1996-04-10 1996-04-10 Method of making sharply bent branch pipes

Country Status (1)

Country Link
RU (1) RU2096113C1 (en)

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