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:
Feb. 04, 2014
Filed:
Jan. 20, 2010
Masaya Katsumata, Susono, JP;
Yasunori Hyogo, Izu, JP;
Masaya Katsumata, Susono, JP;
Yasunori Hyogo, Izu, JP;
Mitsubishi Aluminum Co., Ltd., Tokyo, JP;
Abstract
A heat exchanger tube comprising an Al alloy extruded tube, and a flux layer including Si powder, Zn-containing flux, and binder formed on an outer surface of the Al alloy extruded tube, wherein an amount of the Si powder applied on the Al alloy extruded tube is in a range of 1 g/mor more and 5 g/mor less, an amount of the Zn containing flux applied on the Al alloy extruded tube is in a range of 3 g/mor more and 20 g/mor less, and the Si powder has a particle diameter distribution such that 99% particle diameter is 5 μm or more and 20 μm or less, and an amount of coarse particle having a diameter of not smaller than 5 times (D) is less than 1 ppm by volume.