KR970073775A

KR970073775A - Metal pipe manufacturing method

Info

Publication number: KR970073775A
Application number: KR1019970045370A
Authority: KR
Inventors: 조청조
Original assignee: 조청조
Priority date: 1997-09-01
Filing date: 1997-09-01
Publication date: 1997-12-10

Abstract

본 발명의 교정공정에서 소요되는 가산치의 파이프를 절감할 수 있도록 절단공정에 앞서 교정작업을 하고 절단작업을 수행함으로써 교정작업에서 소비되는 파이프의 소비량을 절감하고 특히, 교정공정과 절단공정을 동시에 수행함으로써 공정의 단순화 및 생산성효율을 극대화할 수 있는 금속 파이프 제조방법에 관한 것으로, 금속의 원자재인 판재의 평면을 고르게 하는 작업을 하고 롤링가공에 의한 금속판 양측을 절곡성형(Forming)하는 성형공정과, 차차로 곡률을 크게해서 관축에 직각방향의 단면을 원으로 접근시키는 방법을 취하여 다음 공정에서 이음매선을 따라 용접(Welding)한 다음 용접부절삭 가공하는 접합공정과, 이를 급냉(수냉)시키고, 이를 측정하는 정형공정과, 교정기에 의한 파이프의 휨을 교정하는 교정공정과, 톱이나 지석 또는 팁(Tip)으로 용도에 맞게 절단하는 절단공정으로 이루어지기 때문에, 종래의 교정작업에서 소요되는 가산치의 여분의 파이프를 낭비하지 않아 원가절감은 물론, 생산라인의 설치면적의 축소 및 특히, 공정의 단순화로 인한 생산성효율을 극대화 할 수 있는 유용한 발명이다.In order to reduce the pipe of the addition value required in the calibration process of the present invention, the calibration work is performed before the cutting process and the cutting operation is performed to reduce the consumption of pipes consumed in the calibration work, and in particular, the calibration process and the cutting process are performed simultaneously. The present invention relates to a method of manufacturing a metal pipe that can simplify the process and maximize productivity efficiency. The method includes forming a flat surface of a plate, which is a raw material of metal, and forming a metal plate by rolling. Gradually increase the curvature to approach the cross section in the direction perpendicular to the tube axis in a circle, then weld along the seam line in the next step, then the welding process of cutting the weld, and then quenched (water cooled) and measured Shaping process, straightening process to correct pipe bending by straightener, saw, grindstone or tip Because it is a cutting process that cuts according to the use, it does not waste extra pipe of the additional value required in the conventional calibration work, and reduces the cost, as well as the reduction of the installation area of the production line and, in particular, the simplification of the process. It is a useful invention that can maximize productivity efficiency.

Description

Metal pipe manufacturing method

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

제 2도는 본 발명에 따른 금속 파이프 제조방법의 공정순서도.2 is a process flowchart of a metal pipe manufacturing method according to the present invention.

Claims

The process of leveling the plane of sheet metal, which is a raw material of metal, and forming both sides of the metal plate by rolling process, and the method of approaching the cross section in the direction perpendicular to the tube axis in a circle by increasing the curvature gradually. In the next process, the joining process is welded along the seam line and then welded, the quenching process is performed by quenching (water cooling) and measuring it, the calibration process of correcting the bending of the pipe by a straightener, saw or Metal pipe manufacturing method comprising a cutting step of cutting to fit the grindstone or tip (Tip).

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