SU1482740A1 - Method of producing bimetallic stock - Google Patents

Method of producing bimetallic stock Download PDF

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Publication number
SU1482740A1
SU1482740A1 SU874290534A SU4290534A SU1482740A1 SU 1482740 A1 SU1482740 A1 SU 1482740A1 SU 874290534 A SU874290534 A SU 874290534A SU 4290534 A SU4290534 A SU 4290534A SU 1482740 A1 SU1482740 A1 SU 1482740A1
Authority
SU
USSR - Soviet Union
Prior art keywords
thickness
bimetal
sublayer
deformation
layers
Prior art date
Application number
SU874290534A
Other languages
Russian (ru)
Inventor
Виктор Александрович Луценко
Анатолий Иванович Беседин
Юрий Викторович Коровин
Николай Макарович Хорошилов
Владимир Михайлович Остапенко
Валентин Федорович Мусикевич
Леонид Александрович Бородин
Original Assignee
Коммунарский горно-металлургический институт
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 Коммунарский горно-металлургический институт filed Critical Коммунарский горно-металлургический институт
Priority to SU874290534A priority Critical patent/SU1482740A1/en
Application granted granted Critical
Publication of SU1482740A1 publication Critical patent/SU1482740A1/en

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Abstract

The invention relates to rolling production, in particular to the production of bimetal. The purpose of the invention is to improve the quality of the bimetal by better joining the layers and thereby reducing the metal consumption. In the method of bimetal production, which includes manufacturing the blanks of the main and cladding layers, placing an intermediate sublayer between them, welding the packages, heating and rolling them, preliminarily determining the thickness of the intermediate sublayer with a strain non-uniformity factor of 1. The method ensures bimetal with maximum continuity and strength layer bonding and reduces the metal consumption by 1-1.5%. 1 tab.

Description

The invention relates to rolling production, in particular to the production of bimetal.
The aim of the invention is to improve the quality of the bimetal by better joining the layers and thereby reducing the metal consumption. The method includes making blanks of the main and cladding layers, placing an intermediate sublayer between them, welding the packages, heating and rolling them, preliminary determining the thickness of the intermediate sublayer from the experimental dependence of the K coefficient of non-uniformity of deformation
TO
In H / h
In Hn / hn
where H and h is the thickness of the package before and
after deformation; H p and h n - the thickness of the sublayer before and
after deformation,
on the thickness of the intermediate sublayer with a value of the coefficient of non-uniformity of deformation, equal to 1.
The magnitude of the non-uniformity coefficient is due to the extrusion of the components of the bimetallic package during deformation. When the value of the coefficient of non-uniformity of deformation, more
-U 00 N3 3
u
1, predominant stretching of the package relative to the intermediate sublayer is observed, which leads to the appearance of shifts in the contact zone, disruption of the formed bonds, destruction of the sublayer and, as a result, to a decrease in the quality of the connection of the layers and an increase in the metal consumption.
Kami main and cladding layers placed intermediate underlayer of nickel foil with a thickness of 90 and 480 microns. The bags were welded around the perimeter, heated, and rolled on a 2800 mill to a thickness of 20 microns. Then the peals were cut around the perimeter, heated and rolled on the mill 2800
When the value of the coefficient is unequal 10 to a thickness of 20 μm. Then, the rolls were cut along the perimeter, the sheets were separated, shears were tested and the connection integrity was determined by ultrasonic testing. The table shows examples of the implementation of the method by the boundary values, above and below the boundary values, and by the prototype.
The dimension of deformation, less than 1, shows the predominant stretching of the sublayer relative to the bag, which leads to the appearance of shifts in the contact zone, the disruption of the resulting bondage - 15 s, the thickening of the sublayer and, as a result, the quality of the joints and the metal consumption to decrease.
With the value of the coefficient of non-uniformity of the Deformation equal to 1, the same stretching of the package and the sublayer is observed, which ensures the absence of shifts in the contact zone and obtaining a high-quality connection of the layers.
The method is as follows.
Example. The models were made and rolled - packages with a nickel sublayer thickness from 50 to 500 microns. After measuring the thickness of the nickel sublayer after rolling by the method of least squares, the dependence of the coefficient K of non-uniformity of deformation was obtained
25
thirty
TO
In H / h
ln Hn / h,
- package thickness before and
after deformation; - the thickness of the intermediate sublayer before and after deformation;
intermediate nickel
TO
one
17T50T 0, OOT9882H + 0.0000035HJ
If K 1, the thickness of the nickel intermediate sublayer was determined:
H „90 microns and H„ and 480 microns.
In the workshop of two-layer steel, blanks of the main layer of STZ steel with dimensions of 100 x 1200 x x 2000 mm and blanks of cladding layer of steel 12X18H10T with dimensions of 32 x 1060 x 1830 mm were manufactured. Between stock
Thus, a preliminary determination of the thickness of the intermediate sublayer from the experimental dependence of the K coefficient of non-uniformity of deformation on the thickness of the intermediate sublayer with a value of non-uniformity of deformation equal to 1 provides a bimetal with maximum continuity and bond strength of the layers and reduces the metal consumption by 1-1.5 %

Claims (1)

  1. Invention Formula
    A method of producing a bimetal, including preparing the surfaces of the base and cladding layers, laying the intermediate layer between them, assembling and welding the bag, heating and rolling, characterized in that, in order to improve the quality of the bimetal by better joining the layers and thereby reducing the metal consumption, are the necessary thickness of the intermediate layer
    514827406
    when the coefficient of non-uniformity is de-where H and h is the thickness of the package before and
    formation equal to one, and the layer op-after deformation, mm;
    is determined by dependency. H „and htt - the thickness of the intermediate
    to l.n H / h if before and after the defor ln Hn / hn matzka, mm.
SU874290534A 1987-07-27 1987-07-27 Method of producing bimetallic stock SU1482740A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874290534A SU1482740A1 (en) 1987-07-27 1987-07-27 Method of producing bimetallic stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874290534A SU1482740A1 (en) 1987-07-27 1987-07-27 Method of producing bimetallic stock

Publications (1)

Publication Number Publication Date
SU1482740A1 true SU1482740A1 (en) 1989-05-30

Family

ID=21321847

Family Applications (1)

Application Number Title Priority Date Filing Date
SU874290534A SU1482740A1 (en) 1987-07-27 1987-07-27 Method of producing bimetallic stock

Country Status (1)

Country Link
SU (1) SU1482740A1 (en)

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