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CPC
B21B27/025
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B21
Mechanical metalworking
B21B
ROLLING OF METAL
B21B27/00
Rolls, roll alloys or roll fabrication Lubricating, cooling or heating rolls while in use
Current Industry
B21B27/025
Skew rolls
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Patents Grants
last 30 patents
Information
Patent Grant
Corrugated skew rolling preparation method of magnesium alloy bar w...
Patent number
12,109,598
Issue date
Oct 8, 2024
Taiyuan University of Technology
Jianglin Liu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for preparing ultrafine-grained superalloy bar
Patent number
11,420,241
Issue date
Aug 23, 2022
NORTHWESTERN POLYTECHNICAL UNIVERSITY
Dong Liu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for producing seamless metal pipe
Patent number
10,232,418
Issue date
Mar 19, 2019
Nippon Steel & Sumitomo Metal Corporation
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Piercing-rolling method and piercing-rolling apparatus for seamless...
Patent number
7,578,157
Issue date
Aug 25, 2009
Sumitomo Metal Industries, Ltd.
Tomio Yamakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Process for manufacturing a seamless tube
Patent number
7,536,888
Issue date
May 26, 2009
Sumitomo Metal Industries, Ltd.
Tomio Yamakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PREPARING ULTRAFINE-GRAINED SUPERALLOY BAR
Publication number
20200276624
Publication date
Sep 3, 2020
Northwestern Polytechnical University
Dong LIU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
WIRE OUTLET NOZZLE ARRANGEMENT
Publication number
20190214893
Publication date
Jul 11, 2019
Aumann Espelkamp GmbH
Wolfgang Lüttge
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for Producing High-Alloy Seamless Steel Pipe
Publication number
20110023570
Publication date
Feb 3, 2011
Sumitomo Metal Industries, Ltd.
Kenichi Saitou
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for Producing Seamless Pipe
Publication number
20110023569
Publication date
Feb 3, 2011
Sumitomo Metal Industries, Ltd.
Takateru Inage
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Process for manufacturing a seamless tube
Publication number
20090064748
Publication date
Mar 12, 2009
Tomio Yamakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Piercing-rolling method and piercing-rolling apparatus for seamless...
Publication number
20080289388
Publication date
Nov 27, 2008
Tomio Yamakawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...