METAL PRESS FIT CONNECTORS STEEL

Brand	Owner (click to sort)	Address	Description
PERMALOK	PERMALOK CORPORATION	472 Paul Avenue St. Louis MO 63135	metal press-fit connectors for steel pipe;PERMANENT LOCK;
PERMALOK	Argent, Michael E.	7800 South Rockhill Road St. Louis MO 63123	metal press-fit connectors for steel pipe;PERMANENT LOCK;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method and device for manufacturing UOE steel pipes, wherein, when an opening width of the U-can obtained by U-ing press is larger than the die-diameter in an O-press of later step, while said opening is narrowed from the front end by the closing rolls disposed before said O-press and/or at least at the entrance portion of the O-press to be smaller than the die-diameter of said O-press, the U-can is simultaneously conveyed into the O-press, and then, after charging into the O-press, undergoes O-ing press to yield an O-can. The device is preferably configured to have the closing rolls disposed in a roll stand and consisted of multiple pairs, to have a mechanism to prevent the U-can from moving upward during narrowing the opening width, and to have the function of conveying the U-can. Thus, UOE steel pipes for high-strength application corresponding to X80 grade can be efficiently manufactured.