A kind of oxyhydrogen flame numerical control punching and cutting process

A cutting process and oxyhydrogen flame technology, which is applied in the field of oxyhydrogen flame CNC punching and cutting process, can solve problems such as harm to the health of operators, quality accidents, safety accidents, etc., so as to save repairing time, reduce process costs, and reduce losses Effect

Active Publication Date: 2016-01-06
SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing CNC flame drilling uses oxyacetylene flame as the cutting gas. Because acetylene is flammable and explosive, there are safety hazards in the process of production, transportation, storage and use, and it will cause serious environmental pollution and harm health of operators
[0003] In the process of the flame drilling process of the existing technology, the pressure parameters of the high-pressure cutting oxygen are all preset before the flame drilling, and the pressure during the drilling process is constant, often in thick plate drilling ( Such as: ≥ 40mm steel plate) before being pierced, due to the obstruction of oxygen flow, reverse pressure will be generated, and anti-slag will block and burn the cutting nozzle, causing tempering, and even safety accidents or quality accidents

Method used

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  • A kind of oxyhydrogen flame numerical control punching and cutting process
  • A kind of oxyhydrogen flame numerical control punching and cutting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment adopts the stepless continuous control and pressure regulation mode controlled by the PLC controller 1 and the electric pressure regulating valve 2, taking cutting a 50mm steel plate as an example.

[0020] like figure 1 As shown, the cutting gas uses the hydrogen-oxygen mixture produced by the electrolytic water generator 7, and the cutting gas is directly connected to the cutting nozzle 6 of the CNC flame machine tool through the bus bar 5.

[0021] The electric pressure regulating valve 2 is directly arranged at the bus bar 5 , and the electric pressure regulating valve 2 controls the pressure of the cutting gas by controlling the gas flow in the bus bar 5 .

[0022] The PLC controller 1 is directly connected to the electric pressure regulating valve 2, and the pre-program in the PLC controller is to control the electric pressure regulating valve 2 within 4 seconds, so that the pressure of the cutting gas in the bus bar 5 increases from 0.1MPa to 0.3M...

Embodiment 2

[0027] This embodiment adopts the step-by-step control and pressure regulation mode controlled by the time relay 3 and three solenoid valves 4, taking cutting a 70mm steel plate as an example.

[0028] like figure 2 As shown, the cutting gas uses the hydrogen-oxygen mixture produced by the electrolytic water generator 7, and the cutting gas is directly connected to the cutting nozzle 6 of the CNC flame machine tool through the bus bar 5.

[0029] The bus bar 5 is composed of three separate channels, each of which is connected to the cutting nozzle 6 of the CNC flame machine tool, and each separate channel is provided with a solenoid valve 4, and the three solenoid valves 4 are all connected to the time relay 3. Pass.

[0030] According to the steel plate thickness of 70mm, three gas pressure stages are set, which are 0.2MPa, 0.4MPa and 0.6MPa respectively. The time relay 3 controls the three solenoid valves 4 to open sequentially, and the time interval between each opening ...

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Abstract

The invention belongs to the technical field of metal flame cutting processing and provides an oxyhydrogen flame numerical control punching and cutting process. The oxyhydrogen flame numerical control punching and cutting process is characterized in that oxyhydrogen is adopted as cutting gas of a numerical control flame machine tool, the oxyhydrogen is delivered to a cutting torch (6) of the numerical control flame machine tool through a busbar (5), the pressure of the cutting gas is controlled to be in a range from 0.1MPa to 1.6MPa in a numerical control manner, and is gradually increased from low to high. The oxyhydrogen flame numerical control punching and cutting process adopts the oxyhydrogen and a gradually pressurizing mode to perform metal cutting, and solves the problem of serious pollution and potential safety hazards of the traditional process.

Description

technical field [0001] The invention belongs to the technical field of metal flame cutting processing, and relates to a hydrogen-oxygen flame numerical control punching and cutting process. Background technique [0002] The existing CNC flame drilling uses oxyacetylene flame as the cutting gas. Because acetylene is flammable and explosive, there are safety hazards in the process of production, transportation, storage and use, and it will cause serious environmental pollution and harm the health of the operator. [0003] In the process of the flame drilling process of the existing technology, the pressure parameters of the high-pressure cutting oxygen are all preset before the flame drilling, and the pressure during the drilling process is constant, often in thick plate drilling ( Such as: when ≥40mm steel plate) has not yet been pierced, due to the obstruction of oxygen flow, reverse pressure will be generated, and anti-slag will block and burn the cutting nozzle, causing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K7/00B23K7/10
Inventor 王彦东孙继洲张鹏涛
Owner SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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