The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2018
Filed:
Dec. 12, 2016
Fujico Co., Ltd., Kitakyushu-shi, Fukuoka, JP;
Kenji Kimura, Kitakyushu, JP;
Akio Sonoda, Kitakyushu, JP;
Hiroshi Yoshinaga, Kitakyushu, JP;
Hideaki Nagayoshi, Kitakyushu, JP;
FUJICO CO., LTD., Kitakyushu-shi, Fukuoka, JP;
Abstract
A method for manufacturing a mill roll including a preheating process for joining end portionstoof a roll barrel memberand/or shaft materials, and a friction pressure welding process strongly pressing and joining the shaft materialsto a core materialafter frictionally heating the joining end portionstoby rotating the shaft materialswhile pressing to the core material, and a manufacturing apparatus including first and second holding meansfor the roll barrel memberand the shaft materials, a rotating means rotating the shaft materials, a pressing meanspressing the core materialand the shaft materialsin an axial direction, and a preheating meanspreheating the joining end portionstoof the roll barrel memberand the shaft materials