火焰切割（氧气燃料切割） - 切割钢的方法

火焰切割（也称为氧燃料切削），它是使用从氧气燃料气体燃烧的热量，将钢材或硬质金属切割到所需的面板或型材。它可以将钢厚度从1毫米降至1200毫米。在大多数情况下，它用于切割钢板厚度超过20毫米，因为氧气燃料切割通常会带来大容差。对于20毫米以下的钢，更好地使用激光切割或水射流等其他切割方法。（为了获得高精度。）

另一方面，随着氧气燃料切割技术的发展如今，具有适当的氧气燃料气体混合物和良好的温度控制，我们也可以获得高精度的火焰切割（质量火焰切割）。特别是随着CNC火焰切割技术集成，已广泛用于钢零件制造工艺。

What is Flame Cutting or Oxy Fuel cutting

Flame cutting (oxy fuel cutting or oxy acetylene cutting), as it’s name, with oxy fuel gas burning through a cutting torch, makes a flame and with the flame heat to cut steels. It is an oldest way in hot steel cutting activities. The cutting torch is designed to provide Oxygen fuel gas for to burn the iron oxide, in this way to guarantee the stable of the temperature and get better cutting performances.

Why flame cut steel used much in cutting steels

防火钢是一种用于切割钢的旧且非常普通的切割钢技术。众所周知，金属制造需要切割，加热和焊接钢。有许多技术用于塑形钢，火焰切割钢是这些技术之一，现在有硬件开发现在您可以获得质量的火焰切割钢部件。它需要使用燃料气和氧气从钢板切割形状。由于各种原因，这种技术正在获得广泛的流行度。

以下是一些原因和优势：

•降低成本和降低投资（火焰切割机比激光切割或水刀机更便宜。即使有氧气燃料切割左轮手枪，您也可以做切割。）
•The only way to cut steel with big thickness（切割厚钢）。
•与其他技术相比，它相对实惠。
•它可以通过大型金属表面积切割。这个厚度范围从1毫米到1000 millimeters.
•此过程是便携式的。它可以在不同的位置使用，除了物理研讨会。
•CNC flame cutting technology integrated

缺点

•切割件更大的变换（因为热熔将制造更大的切割材料）
•运营商应具有高度技能和经验（以获得更好的精度尺寸，避免更热的转换）

防火钢板（氧气燃料切割）工艺工作如何？

Ever asked yourself the above question? If yes, you are at the right place. The flame cutting steel plate process is thermo-chemical. This process requires intense heat commonly referred to pure oxygen. This oxygen fuel can be found in bulk systems and cylinders. Non pure oxygen reduces the cutting speed of steel. Consequently, pure oxygen fuel can mix with impurities through leaks, bad hoses and improper connections. Pure oxygen fuel should be carefully used or it risks serious injuries.

Cutting materials types

The flame cutting steel process can be use for numerous purposes, provided the oxide formed has a low melting point when compared to the material being cut. This is the reason the oxy fuel cutting process cannot be used with other materials. A perfect example is aluminum.

Flame Cutting (oxy fuel cutting) Types

Flame cutting types mainly divided in torch cutting and CNC flame cutting (machine flame cutting table).

火焰割炬切割

Flame torch also called fire gun. With different gas, the torch has different structural. Most used is Oxygen-Acetylene gas torch, acetylene pressure at 0.01 to 0.12 Mpa, Oxygen pressure 0.50 to 1.0 Mpa. Two different gas burned in it’s own channel and mixed together in oxy fuel cutting torch, the flame could be adjusted manually. This type of oxygen cutting mainly used to re-cutting to remove the defects from the steel billet cutting or steel straightening.

CNC火焰切割钢

CNC火焰切割由CNC切割机加工，即使用CNC技术驱动火焰切割台和切割炬，切割钢板，钢板和其他金属材料。CNC火焰切割设备集成了机器，表，电和火炬。因此，它包括三个大部分：CNC控制系统，火焰切割系统和驱动系统。

CNC防火钢优势是它可以切割大厚钢板，较低的成本，但缺点也与普通的火焰切割也是如此。这是大转型，精度较低，切割速度较长，需要很长时间用于预热，穿孔缓慢，并且对所有汽车操作都很难。所以它的应用限于碳钢，厚厚的钢板切割。对于20毫米以下的薄钢板切割，它几乎替代激光切割，或等离子体切割技术。

How can the flame cutting performances could be enhanced?

There are two factors which influence the performance of the flame cutting process, namely the nozzle selection and the fuel type. These two factors can increase or reduce both the labor cost and the cutting speed. In addition to this, the oxy fuel jet and the gas used influence the cutting period used to cut through a material. In most cases, oxygen fuel is mixed with other fuel gas such as propane, methane; acetylene, propylene and MAPP to reach achieve the ignition temperature. The flame cutting steel temperature must below the material’s melting point. Afterwards, pure oxy fuel is passed through the preheated area to kick off the flame cutting process.

所选择的点火气体取决于该过程是否机械化或手动处理，材料类型和处理的工作。如果不产生所需的热量，或者如果超过您的设定预算，则气体不适合使用。

钢板的火焰切割厚度范围

这是人们在询问钢板或钢板的火焰切割过程时常见的问题之一。如前所述，当工业化在高峰时，这一过程可以追溯到回路。据证明，这一过程可切割高达100英寸的材料。显而易见，此过程简化了材料切割任务。

必须强烈预热所有薄材料以增强切削速度。另外，预热过程改善了切削过程。对于所有厚材料，该预热过程保持恒定。

The point is, The thickness of the steel being cut depends on the amount of oxy fuel being delivered during the cutting process. The fuel gas and pure oxygen can be adjusted to deliver smooth cut surface, depending on a person’s needs.

切割温度

通常，预热过程需要加热1600-1800度F之间的材料。
Secondly, pure oxygen is passed through the heated area to facilitate burning or oxidization. This is the reason a person can achieve an excellent final cut surface. It can be a sharp slag-free lower edge, sharp top edge or a flat cut surface.

如何获得高精度的质量防火钢板？

有许多因素控制火焰切割过程，以获得高精度的质量防火钢板或零件。我们将注意到一些因素：

•仔细研究和理解工作过程。如果您发现此过程困难或压力，建议聘请专业服务提供商。

•选择完美的提示，以实现所需的剪辑。有许多人可以用来达到预期的结果。选择简单的技术使您可以轻松实现所需的结果。

• Choosing the correct oxy fuel cutting pressure. People have different needs. Choosing the correct oxygen pressure ensures you achieve your desired quality cut.

•认真对待预热过程。有些人轻轻地采取这个过程。预热过程确定整个火焰切割过程是否是成功的。

•使用正确的切割速度来在设定时间框架内实现所需的目标。

毫无疑问，它可以帮助人们以口袋友好的价格将各种材料切成不同的形状。我们将注意到，并非每个人都达到高质量或所需的精密火焰切割部件，但至少在上面的笔记中，至少您不会获得失败的剪辑。

Octal providing steel cutting services for different steel materials with different thickness, to cut to the steel panels or profiles needed. If you have this requirement, just let us know.