无缝管加热温度控制

无缝管是滚动金属坯料，无缝管通过模具绘制成截面减小的加工方法，主要用于冷加工，金属放入密封容器中，压力施加到一端，由此金属挤出机以预定的处理方法在挤出的预定处理方法中形成相同的形状和尺寸。以这种方式，当生产有色金属钢板多。

铸锭加热

热处理方法

In the case of smelting strict control, there may be delamination defects in seamless pipe, which controls the tube to improve the plasticity and toughness, and improve the cleanliness of the steel, while reducing the harmful impurities. To reduce osteoporosis center segregation and center on the need to increase the proportion of equiaxed slab, only to take reasonable cooling system to be able to avoid cracks inside the slab, billet or rolling off the assembly line for coarse blanks to take the slow cooling process, reducing internal stress, the only way to ensure that the organization billets and finished pipe, and mechanical properties meet technical standards.

Curve by measuring a thermoplastic seamless steel pipes to select the best heating temperature, but also sufficient to note holding time, which will reduce the plastic deformation resistance and toughness increase and decrease the speed of the roll, because the roll piercing process and the key parameter is the speed of the roll from low to high, and when the lower roll speed of the tube is easy to form a cavity, when the high speed of the roll is very easy to form a layered defects, if you want to eliminate and capillary tube defects layered, seamless steel pipe should be reduced speed to start the roll layered appeared less critical roll speed.