公开(公告)号：US20180265959A1

公开(公告)日：2018-09-20

申请号：US15918198

申请日：2018-03-12

Applicant: BWT LLC

Inventor： Craig Zimmerman ,  Jim Hedman ,  Nick Bugliarello-Wondrich ,  Jeff Hemmer

IPC: C23C8/70 ,  F16L9/02 ,  F16L57/06 ,  F16L58/04 ,  B01J20/04 ,  B01J20/08

CPC classification number: C23C8/70 ,  B01J20/043 ,  B01J20/08 ,  C01B32/20 ,  C01B32/956 ,  C01B32/991 ,  C01B35/023 ,  C01B35/066 ,  C23C8/00 ,  C23C8/02 ,  C23C8/06 ,  C23C8/08 ,  C23C8/68 ,  C23C8/80 ,  F16L9/02 ,  F16L57/06 ,  F16L58/04

Abstract: A process comprising: placing a boronizing powder composition in the interior of a metal pipe comprising a first end, a second end, an inside surface and an outside surface; heating the pipe in a vessel having an interior, to a temperature from 1400° F. to 1900° F., thereby forming spent boronizing reaction gases and a borided layer on the inside surface, wherein the vessel interior has an atmosphere that surrounds the outside surface of the metal pipe; and flowing the spent boronizing reaction gases into the atmosphere surrounding the outside surface of the pipe, thereby forming an oxygen-depleted atmosphere.

公开(公告)号：US11192792B2

公开(公告)日：2021-12-07

申请号：US15918045

申请日：2018-03-12

Applicant: BWT LLC

Inventor： Craig Zimmerman ,  Nick Bugliarello-Wondrich ,  Jeff Hemmer

IPC: C01B32/991 ,  C01B32/956 ,  C01B35/02 ,  C01B35/06 ,  F16L58/04 ,  C01F7/02 ,  C23C8/70 ,  F16L9/02 ,  C01B35/12 ,  C23C8/68 ,  C23C8/60

Abstract: A powder boronizing composition comprising: a. 0.5 to 4.5 wt % of a boron source selected from B4C, amorphous boron, calcium hexaboride, borax or mixtures thereof; b. 45.5 to 88.5 wt % of a diluent selected from SiC, alumina or mixtures thereof; c. 1.0 to 20.0 wt % of an activator selected from KBF4, ammonia chloride, cryolite or mixtures thereof; and d. 10.0 to 30.0 wt % of a sintering reduction agent selected from carbon black, graphite or mixtures thereof.

公开(公告)号：US20180265960A1

公开(公告)日：2018-09-20

申请号：US15918560

申请日：2018-03-12

Applicant: BWT LLC

Inventor： Craig Zimmerman ,  Jim Hedman ,  Jeff Hemmer

IPC: C23C8/80 ,  C23C8/70 ,  C21D9/08 ,  C21D8/10 ,  C21D1/18

CPC classification number: C23C8/80 ,  C21D1/18 ,  C21D1/42 ,  C21D8/105 ,  C21D9/08 ,  C21D9/085 ,  C21D2211/001 ,  C23C8/70 ,  E21B1/00 ,  E21B17/006 ,  F16L57/06 ,  Y02P10/253

Abstract: A process comprising: placing a boronizing powder composition in a metal pipe comprising a first end, a second end, an inside surface and an outside surface; heating the pipe to form a borided layer on the inside surface, and spent boronizing powder; removing the spent boronizing powder from the pipe, thereby forming an empty boronized pipe; heating the empty boronized pipe to above its austenitizing temperature, thereby forming an austenitized pipe; quenching the austenitized pipe, thereby forming a quenched pipe; tempering the quenched pipe, thereby forming a tempered pipe; and threading the tempered pipe.

公开(公告)号：US20180265364A1

公开(公告)日：2018-09-20

申请号：US15918045

申请日：2018-03-12

Applicant: BWT LLC

Inventor： Craig Zimmerman ,  Nick Bugliarello-Wondrich ,  Jeff Hemmer

IPC: C01B32/991 ,  C01B32/956 ,  C01B35/02 ,  C01B35/06 ,  C01B35/12 ,  C01F7/02 ,  C23C8/70 ,  F16L9/02 ,  F16L58/04

CPC classification number: C01B32/991 ,  C01B32/956 ,  C01B35/02 ,  C01B35/066 ,  C01B35/122 ,  C01F7/02 ,  C23C8/60 ,  C23C8/68 ,  C23C8/70 ,  F16L9/02 ,  F16L58/04

Abstract: A powder boronizing composition comprising: a. 0.5 to 4.5 wt % of a boron source selected from B4C, amorphous boron, calcium hexaboride, borax or mixtures thereof; b. 45.5 to 88.5 wt % of a diluent selected from SiC, alumina or mixtures thereof; c. 1.0 to 20.0 wt % of an activator selected from KBF4, ammonia chloride, cryolite or mixtures thereof; and d. 10.0 to 30.0 wt % of a sintering reduction agent selected from carbon black, graphite or mixtures thereof.