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　　容器板的熱切割往往可以造成熱變形，而在工業生產應用中，并不是完全杜絕這類變形影響，而是采取控制及預防措施降低因熱切割導致的變形影響。
Container plate thermal cutting, often can cause thermal deformation, and in industrial applications, the deformation is not completely put an end to this kind of influence, take control and prevention measures to reduce the influence of deformation caused by thermal cutting.
　　一、熱變形的控制
One, the control of the thermal deformation
　　在數控切割機實際切割過程中，由于對鋼板的不均勻的加熱和冷卻，材料內部應力的作用將使被切割的工件發生不同程度的彎曲或移位-即切割熱變形，具體表現是形狀扭曲和切割尺寸偏差。由于材料內部應力不可能平衡和完全消除，所以只能采取一些措施來設法減少熱變形。
In CNC cutting machine actual cutting process, due to the uneven heating and cooling for steel plate, the role of internal stress will make by cutting the workpiece in different degree of bending or shift - cutting the thermal deformation, specific performance is shape distortions and cutting size deviation. Materials due to the internal stress can't be balanced and fully eliminated, so can only take some measures to try to reduce the thermal deformation.
　　二、鋼板表面處理
Second, the plate surface treatment
　　通常鋼板從鋼鐵廠經過一系列的中間環節達到切割車間，在這段時間里，鋼板表面難免產生一沉氧化皮。在者，鋼板在軋制過程中也產生一層氧化皮附著在鋼板表面。這些氧化皮熔點高，不容易燃燒和溶化，增加了預熱時間，降低了切割速度，同時經過加熱，氧化皮四處飛濺，極易對數控切割機的割嘴造成堵塞，降低了割嘴的使用壽命，所以，在切割前，很有必要對鋼板表面進行除銹預處理。

Through a series of steel from the steel mills of the intermediate links to cutting workshop, during this time, inevitably produce a heavy steel plate surface scale. In person, also produced in the process of rolling steel plate in a layer of oxide skin adhere to the surface of steel plate. This oxide coating high melting point, it is not easy to burn and melted, increased the preheating time, reduces the cutting speed, at the same time after heating, scale splash around, easy to cause blockage to CNC cutting machine cutting nozzle, reduces the service life of the cutting nozzle, therefore, before cutting, it is necessary to pretreatment on steel plate surface derusting.
　　三、切割工件前的表面處理及方法
Three, cutting workpiece surface treatment before and methods
　　常用的方法是拋丸防銹，之后噴漆防銹，即將細小鐵砂用噴丸機噴向鋼板表面，靠鐵砂對鋼板的沖擊力除去氧化皮，再噴上阻燃，導電性好的防銹漆。
After the commonly used method is shot blasting rust, paint rust, the small iron ore to steel plate surface with shot blast machine spray, by the impact of the iron ore to steel plate to remove oxide skin, spray flame retardant, good electrical conductivity anticorrosive paint.
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