KR950000283A - Preheating control device of gas cutting machine - Google Patents

Preheating control device of gas cutting machine Download PDF

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Publication number
KR950000283A
KR950000283A KR1019930011532A KR930011532A KR950000283A KR 950000283 A KR950000283 A KR 950000283A KR 1019930011532 A KR1019930011532 A KR 1019930011532A KR 930011532 A KR930011532 A KR 930011532A KR 950000283 A KR950000283 A KR 950000283A
Authority
KR
South Korea
Prior art keywords
cutting
preheating time
preheating
gas
control device
Prior art date
Application number
KR1019930011532A
Other languages
Korean (ko)
Other versions
KR950007547B1 (en
Inventor
신윤섭
장세엽
이상진
김재곤
Original Assignee
석진철
대우중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 석진철, 대우중공업 주식회사 filed Critical 석진철
Priority to KR1019930011532A priority Critical patent/KR950007547B1/en
Priority to US08/265,341 priority patent/US5470047A/en
Priority to JP6164682A priority patent/JPH07244018A/en
Publication of KR950000283A publication Critical patent/KR950000283A/en
Application granted granted Critical
Publication of KR950007547B1 publication Critical patent/KR950007547B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

본 발명은 피절단재를 절단하는 가스절단기의 예열시간 제어장치에 관한 것으로, 이는 작업자가 미리 예열시간을 판넬 내부의 타이머에 설정하여 예열시간을 조정하는 방식으로 절단하고자 하는 피절단재의 두께에 따라서 이전의 실험에 의하여 적정 예열시간을 구한 후 절단할때마다 적정 예열시간을 타이머에 설정해야 하는 불편이 있고, 더우기 사용가스의 압력 및 유량이 변동되었을 시에는 적정 예열시간이 틀려지게 되므로 작업자가 항시 감시해야 하는 종래기술의 문제점을 해소하고자 하는 것이다.The present invention relates to a preheating time control device for a gas cutting machine for cutting a cutting material, which is set by the operator in advance by setting the preheating time to a timer inside the panel and adjusting the preheating time according to the thickness of the cutting material to be cut. It is inconvenient to set the proper preheating time in the timer every time after cutting the proper preheating time according to the previous experiment. Moreover, when the pressure and the flow rate of the used gas are changed, the proper preheating time is changed. It is to solve the problems of the prior art to be monitored.

이에 따른 본 발명은 절단팁과 피절단재 간에 전압을 인가하고, 이 피절단재에 화염을 가열하는 정도에 따라 피절단재의 온도상승에 비례한 전압변화를 검출하여 절단팁의 종류에 따라 입력설정된 기준치에 도달하면 예열완료 시점을 종료함과 동시 절단공정으로 자동실행하는 가스절단기의 예열시간 제어장치를 제공하므로서 별도의 센서 부착없이도 예열상태를 모니터링할 수 있고, 피절단재의 두께에 따라 예열완료 시간의 자동 결정으로 작업상에 편리함을 줄 수가 있는 동시 정확한 예열시간 제어에 의해 가스의 소비량을 줄일수 있는 효과를 제공한다.Accordingly, the present invention applies a voltage between the cutting tip and the cutting material, detects a voltage change proportional to the temperature rise of the cutting material according to the degree of heating the flame to the cutting material, and sets the input according to the type of the cutting tip. When the standard value is reached, the preheating time control is completed and the preheating time control device of the gas cutting machine which is automatically executed by the cutting process can be monitored, so that the preheating state can be monitored without attaching a sensor. The automatic determination of the gas provides the effect of reducing gas consumption through simultaneous precise preheating control, which can be convenient for operation.

Description

가스절단기의 예열 제어장치Preheating control device of gas cutting machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

토치와 모재로 이루어지며, 상기 토치와 모재에 전원을 인가하는 수단과, 상기 토치와 모재사이의 전압변위를 측정하는 수단을 구비한 가스절단기에 있어서, 토치와 모재사이의 절압변위(△V)를 입력받아 미리 설정된 예열완료 기준전압 변위파형과 비교하고, 비교결과 상기 입력 전압변위의 단위시간당 증가속도가 상기 예열완료 기준전압변위의 증가속도와 대략 일치할때 예열완료 신호를 제어부에 전달하는 것을 특징으로 하는 가스절단기의 예열 제어장치.Comprising a torch and a base material, the gas cutting machine having a means for applying power to the torch and the base material, and a means for measuring the voltage displacement between the torch and the base material, the pressure reduction displacement (ΔV) between the torch and the base material Receiving a signal and comparing it with a preset preheating reference voltage displacement waveform, and comparing the preheating completion signal to a controller when the rate of increase of the input voltage displacement coincides with the increase rate of the preheating reference voltage displacement. Preheating control device of the gas cutting machine characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930011532A 1993-06-23 1993-06-23 Pre heating device of gas torch KR950007547B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019930011532A KR950007547B1 (en) 1993-06-23 1993-06-23 Pre heating device of gas torch
US08/265,341 US5470047A (en) 1993-06-23 1994-06-23 Electrical flame sensor for use in a gas cutting apparatus
JP6164682A JPH07244018A (en) 1993-06-23 1994-06-23 Flame sensor for gas cutting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930011532A KR950007547B1 (en) 1993-06-23 1993-06-23 Pre heating device of gas torch

Publications (2)

Publication Number Publication Date
KR950000283A true KR950000283A (en) 1995-01-03
KR950007547B1 KR950007547B1 (en) 1995-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930011532A KR950007547B1 (en) 1993-06-23 1993-06-23 Pre heating device of gas torch

Country Status (1)

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KR (1) KR950007547B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069590B1 (en) 2000-02-17 2006-06-27 Microsoft Corporation System and method for protecting data streams in hardware components

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Publication number Publication date
KR950007547B1 (en) 1995-07-12

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