JPS59107701A - Setting method of draft in dull rolling - Google Patents

Setting method of draft in dull rolling

Info

Publication number
JPS59107701A
JPS59107701A JP21602882A JP21602882A JPS59107701A JP S59107701 A JPS59107701 A JP S59107701A JP 21602882 A JP21602882 A JP 21602882A JP 21602882 A JP21602882 A JP 21602882A JP S59107701 A JPS59107701 A JP S59107701A
Authority
JP
Japan
Prior art keywords
calculated
draft
face pressure
rolling
average
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
Application number
JP21602882A
Other languages
Japanese (ja)
Inventor
Toshinaga Nakanishi
Kazuhiro Hirohata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP21602882A priority Critical patent/JPS59107701A/en
Publication of JPS59107701A publication Critical patent/JPS59107701A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/14—Roughness

Abstract

PURPOSE:To attain the target value in the surface roughness of a material to be rolled in dull rolling wherein the prescribed surface roughness is transferred on said material by determining the average face pressure for a target transfer rate under a specified tension and setting the draft at which said face pressure is attained then rolling the material at the set draft. CONSTITUTION:Initial values of front and rear tensions, coefft. (u) of friction, the radius R of roll, the thickness (h) on the outlet side, transfer rate alpha, etc. are set. An average face pressure Pm is calculated by the equation ( I ) that holds under a specified tension. A draft (r) is adequately determined and average deformation resistance (km) is calculated by the equations (II, III). A calculated rolling load Pc is calculated by the equations (II, IV). A calculated average face pressure Pmc is calculated by using Pc. The draft (r) is changed and calculated until the error between Pm and Pmc attains a specified value or below, and the final draft (r) is determined. Conditions are settable extremely more quickly than by the estimated test pressure in the prior art and the method is efficient and economical.
JP21602882A 1982-12-09 1982-12-09 Setting method of draft in dull rolling Pending JPS59107701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21602882A JPS59107701A (en) 1982-12-09 1982-12-09 Setting method of draft in dull rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21602882A JPS59107701A (en) 1982-12-09 1982-12-09 Setting method of draft in dull rolling

Publications (1)

Publication Number Publication Date
JPS59107701A true JPS59107701A (en) 1984-06-22

Family

ID=16682160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21602882A Pending JPS59107701A (en) 1982-12-09 1982-12-09 Setting method of draft in dull rolling

Country Status (1)

Country Link
JP (1) JPS59107701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238528A (en) * 1988-07-29 1990-02-07 Kawasaki Steel Corp Manufacture of grain-oriented silicon steel sheet
JP2010274277A (en) * 2009-05-27 2010-12-09 Nippon Steel Corp Cold rolling method using dull work roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238528A (en) * 1988-07-29 1990-02-07 Kawasaki Steel Corp Manufacture of grain-oriented silicon steel sheet
JP2010274277A (en) * 2009-05-27 2010-12-09 Nippon Steel Corp Cold rolling method using dull work roll

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