KR880001360A

KR880001360A - Steel workpiece cutting nozzle with double heating ring

Info

Publication number: KR880001360A
Application number: KR870008213A
Authority: KR
Inventors: 아르누 미쉘; 퐁트노 빠뜨릭; 라스니에 디디에
Original assignee: 에릭 조르쥬 피코; 레르 리뀌드, 쏘시에떼 아노뉨 뿌르 레뛰드 에렉스 쁠로와따시옹 데프로세드 죠르쥬 끌로드
Priority date: 1986-07-30
Filing date: 1987-07-28
Publication date: 1988-04-23

Abstract

내용 없음No content

Description

Steel workpiece cutting nozzle with double heating ring

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본발명의 일실시예에 따른, 이중 가열링을 구비한 강공작물 절단노즐을 도시하는, 제3도의 선 Ⅰ-Ⅰ의 단면도.1 is a cross-sectional view taken along line I-I of FIG. 3, showing a steel workpiece cutting nozzle with a double heating ring, in accordance with an embodiment of the present invention.

제2도는 제1도 절단노즐의 분사기의 평면도.2 is a plan view of the injector of the first FIG.

Claims

With a double heating ring, ie an external oxidizing heating ring, and an internal carbonization heating ring surrounding the cutting jet, the center cutting passage for generating the cutting jet and two spaced intervals around the axis of the nozzle around the central cutting passage; In a steel workpiece cutting nozzle consisting of a group of passages, ie, outer passages generating an external oxidation heating ring, and inner passages generating an internal carbonization heating ring, the nozzles being joined at a transverse joining plane. It consists of two parts, each forming an injector unit and a cutting unit, and a plurality of passages are drilled therein, and a small amount of oxygen required for the inner heating ring from the oxygen-fuel mixture entangled in the outer passages. Double heating ring, characterized in that the means for providing communication between the outer passage and the inner passage is provided to supply to the inner passage Having steel workpiece cutting nozzle.

2. The injector of claim 1, wherein the injectors forming the internal heating ring are formed by an assembly of two units constituting a nozzle, the injectors being formed in a two unit transverse joining plane, wherein in the joining region, the injector unit has fuel A gas supply conduit is drilled, and an oxygen-fuel mixture supply groove is formed at the front side of the cutting unit, and this groove extends between the inner passage conduit and the outer passage conduit of the cutting unit. Steel workpiece cutting nozzles.

3. The steel workpiece cutting nozzle according to claim 2, wherein the groove extends radially between an end portion of the outer soil pipe and an end portion of the inner conduit opened to the short side of the cutting unit.

2. The double heating of claim 1, wherein an elliptical conduit is formed between an orifice positioned in the transverse joint plane in the outer passage conduit provided in the cutting unit and an inner passage conduit provided in the cutting unit. Steel workpiece cutting nozzle with ring.

5. The steel workpiece cutting nozzle according to any one of claims 1 to 4, wherein the inner and outer conduits provided in the cutting unit each have a cross-sectional reduction in proximity to the outlet orifices thereof.

※ Note: The disclosure is based on the initial application.