Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR ROLLING METALLIC PIPE
Document Type and Number:
Japanese Patent JP2001232404
Kind Code:
A
Abstract:

To provide a rolling method for a metallic pipe by which biting ability is improved and also the generation of fin flaws is prevented in sizing rolling with a sizing machine such as a sizer.

A slip inhibitor in which a granular body is dispersed in a water solution containing a water-swelling clay mineral is supplied between the grooved rolls of at least the 1st stand of the sizing machine and a material to be rolled and also rolling is performed by controlling the ellipticity of the 1st stand to 0.90-0.94. The content of the water-swelling clay mineral is 0.1-10 mass% of the slip inhibitor. The granular body is a mixture of one or more kinds among metal, metallic compound and silicide and the content of the granular body is defined as 10-50 mass% of the slip inhibitor. It is preferable that the particle size of the granular body is 1-300 μm.


Inventors:
Okui, Tatsuya
Shimoda, Kazumune
Application Number:
JP2000000046022
Publication Date:
August 28, 2001
Filing Date:
February 23, 2000
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO METAL IND LTD
International Classes:
B21B19/10; B21B17/14; B21B25/04; C09K3/14; (IPC1-7): B21B19/10; B21B17/14; B21B25/04; C09K3/14