SU1295198A1 - Method for checking curvature of rolled products - Google Patents
Method for checking curvature of rolled products Download PDFInfo
- Publication number
- SU1295198A1 SU1295198A1 SU853866715A SU3866715A SU1295198A1 SU 1295198 A1 SU1295198 A1 SU 1295198A1 SU 853866715 A SU853866715 A SU 853866715A SU 3866715 A SU3866715 A SU 3866715A SU 1295198 A1 SU1295198 A1 SU 1295198A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- curvature
- roller
- bend
- rolled
- section
- Prior art date
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- Length Measuring Devices By Optical Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Изобретение относитс к технике измерений, в частности к способу определни кривизны изгиба проката под роликом правильной машины. Целью изобретени вл етс повышение точности контрол , дл чего выбирают участок упругой деформации проката, примыкающий к ролику, определ ют на нем кривизну не менее чем в двух точках, а кривизну изгиба проката под роликом определ ют, исход из услови линейного изменени кривизны на длине участка упругой деформации . 1 ил. го со СП со СХ)The invention relates to a measurement technique, in particular, to a method for determining the curvature of a bend of a rolled product under a roller of a straightening machine. The aim of the invention is to improve the accuracy of control, for which choose the section of elastic deformation of the car adjacent to the roller, determine the curvature on it at least two points, and the curvature of the bend of the rolled under the roller is determined on the basis of a linear change in the curvature on the length of the section elastic deformation. 1 il. go with SP with SH)
Description
Изобретение относитс к технике измерений, а более конкретно к определению кривизны изгиба проката под роликами правильной машины.The invention relates to a measurement technique, and more specifically to the determination of the curvature of a bend of a rolled under the rollers of a straightening machine.
Цель изобретени - повышение точности контрол за счет определени кривизны на участке упругой деформации проката, примыкающей к ролику .The purpose of the invention is to improve the control accuracy by determining the curvature in the section of the elastic deformation of the car adjacent to the roller.
На чертеже показана схема, по сн юща предлагаемый способ.The drawing shows a diagram explaining the proposed method.
Способ осуществл ют следующим образом.The method is carried out as follows.
Выбирают участок упругой разгрузки проката, примыкающий к ролику на выходе из-под него, и на выбранном участке в разных точках провод т п измерений прогибов проката (п 2) с помощью линейки с базовой длиной. Дл каждого измерени , определ ют кривизну по известной формулеA section of the elastic unloading of rolled products adjacent to the roller at the outlet from under it is selected, and n measurements of the deflections of rolled products (n 2) are made at different points at a selected point using a ruler with a base length. For each measurement, the curvature is determined by the known formula
X.X.
Jk L2 Jk l2
(1)(one)
f:, 1 где L -.база (длина) линейки, мм; рассто ние от середины линейки до поверхности проката (прогиб проката), мм; пор дковый номер измерени (г 1, 2,,.,,п). После этого, исход из услови линейного изменени кривизны на . участке упругой деформации, определют кривизну изгиба проката по формуле« ., г.f :, 1 where L is the base (length) of the ruler, mm; the distance from the middle of the ruler to the surface of the car (the deflection of the product), mm; the order number of the measurement (r 1, 2 ,,., ,, n). After that, proceeding from the condition of linear change of curvature on. plot of elastic deformation, determine the curvature of the bend of rolled according to the formula ".,
(5Ё:х.) ),хр-(С.п.)(5Е: х.)), Хр- (С.п.)
X Н-Ч 1iiLjМL L I-,X N-H 1iiLjML L I-,
n.(i)-(cv n. (i) - (cv
f 1 .1 f 1 .1
-Д-E
X . - кривизна проката в точкеX. - rolled curvature at the point
i-ro измерени , мм; Ij - рассто ние от точки контакта проката с роликом до точки i-ro измерени кривизны на участке упругой деформации проката, мм. Формула (2) получена методом наименьших квадратов из уравнени пр мой X X |,+ al, наименее уклон ющейс от точек измерени (1, , х) в системе координат с вершиной в точке контакта ролика с прокатом. П р и м.е р„ При правке рельса Р65 на правильной машине провод т три замера прогибов на рассто ни х 1 100, lj,. 200 и 1 300 мм от точки контакта с роликом. База линейки L 200 IVIM, Получены прогибы f, 0,27, fj 0,19 и f 0,12 мм.i-ro measurements, mm; Ij is the distance from the point of contact of the rolling with the roller to the point i-ro of the curvature measurement on the section of the elastic deformation of the rolled metal, mm. Formula (2) was obtained by the least squares method from the direct X X |, + al equation, the least deviating from the measurement points (1, ..., x) in the coordinate system with the vertex at the point of contact of the roller with the hire. P & R: When the P65 rail is being straightened on the correct machine, three measurements of deflections at distances x 1 100, lj, are carried out. 200 and 1 300 mm from the point of contact with the roller. The base of the L 200 IVIM line, deflections f, 0.27, fj 0.19 and f 0.12 mm were obtained.
По формуле (1) определены кривизны в каждой точке измерени : х, 0,054, Х2 0,038 и Xj 0,024 м ,By the formula (1), the curvatures at each measurement point are determined: x, 0.054, X2 0.038 and Xj 0.024 m,
По формуле (2) опредеп ют кривиз- ну под роликом х 0,0687 м .According to the formula (2), the curvature under the roller x is 0.0687 m.
Дл сравнени провод т измерение прогиба проката известным способом - непосредственно под роликом, и получают fp 0,28 мм, х 0,056 м . Таким образом, получают повьшение точности контрол на 18,6%,For comparison, the measurement of the deflection of rolled products is carried out in a known manner, directly under the roller, and fp 0.28 mm, x 0.056 m is obtained. Thus, the control accuracy is increased by 18.6%,
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853866715A SU1295198A1 (en) | 1985-03-05 | 1985-03-05 | Method for checking curvature of rolled products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853866715A SU1295198A1 (en) | 1985-03-05 | 1985-03-05 | Method for checking curvature of rolled products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1295198A1 true SU1295198A1 (en) | 1987-03-07 |
Family
ID=21166822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853866715A SU1295198A1 (en) | 1985-03-05 | 1985-03-05 | Method for checking curvature of rolled products |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1295198A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2346773C2 (en) * | 2004-08-28 | 2009-02-20 | Смс Демаг Аг | Method for flattening of metal tape |
-
1985
- 1985-03-05 SU SU853866715A patent/SU1295198A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Слоним А.З., Сонин А.Л. Правка листового и сортового металла. - М.: Металлурги , 1981, с. 85-87. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2346773C2 (en) * | 2004-08-28 | 2009-02-20 | Смс Демаг Аг | Method for flattening of metal tape |
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