Nozzle cover gas cutting crater and gas cutting torch

Provided are a nozzle cover to improve heat emission characteristics by increasing a surface area of the outer circumferential surface, a gas cutting crater using the nozzle cover, and a gas cutting torch. The cover (A) has a hole (1) into which a nozzle (10) emitting cutting oxygen is inserted, and...

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Bibliographic Details
Main Authors SASA HIROKI, NOMURA TOMOHIRO, KASHIMATA KAZUYA
Format Patent
LanguageEnglish
Korean
Published 02.10.2019
Subjects
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Summary:Provided are a nozzle cover to improve heat emission characteristics by increasing a surface area of the outer circumferential surface, a gas cutting crater using the nozzle cover, and a gas cutting torch. The cover (A) has a hole (1) into which a nozzle (10) emitting cutting oxygen is inserted, and has an uneven unit (5) having a plurality of uneven portions on the outer circumferential surface thereof. The crater (B) is formed by inserting the nozzle (10) having a cutting oxygen injection hole arranged in the center thereof and a preheating gas injection groove arranged to surround the cutting oxygen injection hole into the hole (1) formed in the cover (A). The torch (C) has the cover (A) comprising a male screw unit (7) arranged in an end portion of the outer circumferential surface, and is formed by coupling the cover (A) to a female screw unit (24) arranged in an end portion of a torch body (20). 외주면의 표면적을 증대시킴으로써 방열성을 향상시킨 노즐 커버, 이 노즐 커버를 이용한 가스 절단 화구, 및 가스 절단 토치를 제공한다. 커버(A)는 내부에 절단 산소를 분출하는 노즐(10)을 삽입하는 구멍(1)을 가지며, 외주면에 복수의 요철로 이루어진 요철부(5)를 가진다. 화구(B)는 중앙에 배치된 절단 산소 분사 구멍 및 상기 절단 산소 분사 구멍을 둘러싸고 배치된 예열 가스 분사 홈을 가지는 노즐(10)을 커버(A)의 내부에 형성된 구멍(1)에 삽입하여 구성한다. 토치(C)는 외주면의 단부에 배치된 수나사부(7)를 가지는 커버(A)를 가지고, 해당 커버(A)를 토치 본체(20)의 단부에 배치된 암나사부(24)에 체결하여 구성한다.
Bibliography:Application Number: KR20180033626