JPS551549A - Method and apparatus for measuring coefficient of rriction - Google Patents
Method and apparatus for measuring coefficient of rrictionInfo
- Publication number
- JPS551549A JPS551549A JP7456178A JP7456178A JPS551549A JP S551549 A JPS551549 A JP S551549A JP 7456178 A JP7456178 A JP 7456178A JP 7456178 A JP7456178 A JP 7456178A JP S551549 A JPS551549 A JP S551549A
- Authority
- JP
- Japan
- Prior art keywords
- outlet
- rolls
- steel material
- thickness
- inlet
- 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.)
- Pending
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To enable the coefficients of friction between the steel material under rolling and rolling rolls to be readily obtained by measuring the inlet thickness of the steel material, the peripheral speeds of the rolls and the outlet thickness of the steel material and inputting these measured values to operators.
CONSTITUTION: The inlet thickness t0 of a steel material, roll peripheral speed VR, outlet thickness t and outlet speed V are normally measured by the inlet thickness gauge 1, revolution number meter 2, outlet thickness gauge 3 and outlet speedometer 4 installed respectively to the inlet of rolling rolls R, rolls R and the outlet of the rolls R. These measured values are inputted to operators 5, 6, 7, 8, by which the forward slip area Sf and backward slip area Sb on the projection plane from the direction perpendicular to the axis are obtained from the operator 6 and the projection contact area SR from the horizontal direction is obtained from the operator 7, thence the coefficient of friction μ is obtained according to formula 1 from the operator 8. In this way, the coefficients of friction may be normally obtained with ease during rolling.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7456178A JPS551549A (en) | 1978-06-20 | 1978-06-20 | Method and apparatus for measuring coefficient of rriction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7456178A JPS551549A (en) | 1978-06-20 | 1978-06-20 | Method and apparatus for measuring coefficient of rriction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS551549A true JPS551549A (en) | 1980-01-08 |
Family
ID=13550752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7456178A Pending JPS551549A (en) | 1978-06-20 | 1978-06-20 | Method and apparatus for measuring coefficient of rriction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS551549A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5954948A (en) * | 1982-09-22 | 1984-03-29 | Daido Kagaku Kogyo Kk | Instrument for testing performance of lubricant for plastic processing |
| RU2538673C1 (en) * | 2013-07-29 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Method of assessment of force and friction coefficient during cold metal forming and device for its implementation |
-
1978
- 1978-06-20 JP JP7456178A patent/JPS551549A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5954948A (en) * | 1982-09-22 | 1984-03-29 | Daido Kagaku Kogyo Kk | Instrument for testing performance of lubricant for plastic processing |
| JPH0439035B2 (en) * | 1982-09-22 | 1992-06-26 | ||
| RU2538673C1 (en) * | 2013-07-29 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Method of assessment of force and friction coefficient during cold metal forming and device for its implementation |
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