Roller quenching flow zone control device for metal plate strips

Patent metadata

Field	Value
Publication number	US-12018342-B2
Application number	US-201917276781-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Oct 19, 2018
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

Heat treatment equipment for metal plate strips, and a roller quenching flow zone control device for metal plate strips. The device includes a middle water diversion ring sleeve and edge water diversion ring sleeves; the middle water diversion ring sleeve is installed at the middle processing groove in a slit nozzle rear spiral roller and a high-density nozzle rear spiral roller in a high-pressure cooling section of a roller quenching machine; and the edge water diversion ring sleeves are installed at the processing grooves in ¼ and ¾ positions in the width direction of the slit nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine. This can effectively realize uniform distribution of cooling water on the surface of the plate strip, reduce the phenomenon of local non-uniform cooling caused by siltation of cooling water.

First claim

The invention claimed is:

1. A roller quenching flow zone control device for metal plate strips, wherein a metal plate strip enters a slit nozzle, a slit nozzle rear spiral roller, a high-density nozzle and a high-density nozzle rear spiral roller in a high-pressure cooling section of a roller quenching machine in sequence; the control device comprises a middle water diversion ring sleeve and edge water diversion ring sleeves; the middle water diversion ring sleeve is installed at a middle processing groove in the slit nozzle rear spiral roller and the high-density nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine; and the edge water diversion ring sleeves are installed at edge processing grooves in ¼ and ¾ positions in a width direction of the slit nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine;
wherein the middle water diversion ring sleeve comprises an upper left semicircular water diversion ring sleeve, a lower left semicircular water diversion ring sleeve, an upper right semicircular water diversion ring sleeve and a lower right semicircular water diversion ring sleeve, and inner diameters of the four semicircular water diversion ring sleeves are equal to an outer diameter of the middle processing groove; outer diameters of the four semicircular water diversion ring sleeves are equal and smaller than an outer diameter of the spiral roller in the high-pressure cooling section of the roller quenching machine by 5 mm-10 mm, spiral drainage grooves are designed in outer surfaces of the semicircular water diversion ring sleeves, a rotation direction of the spiral drainage grooves in the outer surfaces of the upper left semicircular water diversion ring sleeve and a rotation direction of the spiral drainage grooves in the outer surfaces of the lower left semicircular water diversion ring sleeve are equal to a rotation direction of the drainage groove in a left connected spiral roller, and a rotation direction of the spiral drainage grooves in the outer surfaces of the upper right semicircular water diversion ring sleeve and a rotation direction of the spiral drainage grooves in the outer surfaces of the lower right semicircular water diversion ring sleeve are equal to a rotation of the drainage groove in a right connected spiral roller; and the four semicircular water diversion ring sleeves are tightly connected and fixed according to distribution positions to form the entire middle water diversion ring sleeve;
each edge water diversion ring sleeve comprises an upper semicircular water diversion ring sleeve and a lower semicircular water diversion ring sleeve, and inner diameters of two semicircular water diversion ring sleeves are equal to outer diameters of the edge processing grooves and outer diameters of the two semicircular water diversion ring sleeves are equal and smaller than the outer diameter of the spiral roller in the high-pressure cooling section of the roller quenching machine by 5 mm-10 mm, spiral drainage grooves are designed in the outer surfaces of the semicircular water diversion ring sleeves, and a rotation direction of the spiral drainage grooves in the outer surfaces of each edge water diversion ring sleeve is equal to a rotation of the drainage groove of the spiral roller connected therewith.

2. The roller quenching flow zone control device for metal plate strips according to claim 1 , wherein the spiral drainage grooves have depths of 6 mm-8 mm and widths of 20 mm-30 mm.

3. The roller quenching flow zone control device for metal plate strips according to claim 1 , wherein the middle water diversion ring sleeve also comprises two connecting plates, bolt fixing holes are formed in the connecting plates and correspond to bolt counterbores in the outer surfaces of the joints of the upper left and right semicircular water diversion ring sleeves and the lower left and right semicircular water diversion ring sleeves, and connecting plate mounting grooves are formed in the joints of the upper left and right semicircular water diversion ring sleeves and the lower left and right semicircular water diversion ring sleeves and have the same dimension as the connecting plates.

4. The roller quenching flow zone control device for metal plate strips according to claim 1 , wherein each edge water diversion ring sleeve also comprises two connecting plates, bolt fixing holes are formed in the connecting plates and correspond to the bolt counterbores in the outer surface of a joint of the upper semicircular water diversion ring sleeve and the lower semicircular water diversion ring sleeve, and connecting plate mounting grooves are formed in the joint of the upper semicircular water diversion ring sleeve and the lower semicircular water diversion ring sleeve and have the same dimension as the connecting plates.

5. The roller quenching flow zone control device for metal plate strips according to claim 1 , wherein no edge water diversion ring sleeve is installed in the ¼ and ¾ positions in the width direction of the high-density nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine.

Assignees

• Univ Northeastern

Inventors

• Fu Tianliang
• Deng Xiangtao
• Wang Guodong
• Zhang Zhifu
• Liu Guanghao
• Zheng Mingjun
• Song Guozhi
• Cui Wei
• Song Min
• Jia Zhiwei

Classifications

• C21D11/00

  Process control or regulation for heat treatments · CPC title

• C21D9/52

  for wires; for strips {; for rods of unlimited length} · CPC title

• C21D9/46

  for sheet metals · CPC title

• C21D1/667 Primary

  for spray quenching · CPC title