产品说明： MPT系列准离子弧焊机--历史性的突破MPT系列准离子弧制管专用焊机，让您的焊管生产线轻松提速50%以上，保证焊缝质量的同时大大节约生产成本！省时、省电、省氩气、省磨头！ MPT系列准离子弧焊机采用全球首创电弧电磁强化收缩技术，具有普通氩弧及等离子弧所不具备的焊接性能及操作方便性，在电弧压力、电弧刚性、轴向的指向性、熔透性及熔池的流动性等方面都有显著提高，适用于所有氩焊及部分等离子弧工艺
High frequency pulsed argon arc welding machine
Highest level of argon arc welding! Specially designed for high quality welds!
MPT series of TIG welding machine, so that your welded pipe production line easily increased by more than 50%, to ensure the quality of welding seam while greatly saving production costs! Save time, save electricity, save argon and save the grinding head!
MPT series of TIG welding machine using the world's first arc electromagnetic enhancement technology with arc contraction, plasma arc and ordinary argon do not have welding performance and convenient operation, has improved significantly in the arc pressure, arc rigidity, axial directivity and permeability, the molten pool fluidity, suitable for welding occasion it is required in all parts of argon arc welding and plasma arc process.
1) when small current welding, arc rigidity is strong, axial direction is good, small current arc reliable (5A arc), minimum welding ultra-thin workpiece (0.15mm)
2) when the high current welding is done, the electromagnetic contraction is strengthened, and the fluidity and penetration of the weld pool are strengthened. It has the characteristic of plasma arc welding, which can achieve the effect of plasma welding.
3) characteristics and advantages of arc electromagnetic enhanced contraction technology:
A, the effect of plasma arc can be reduced by using ordinary argon welding torch, and the welding cost and labor intensity can be reduced.
B, with bead shrinkage effect, can avoid common argon welding in high current welding seam edge scaling.
C, the production efficiency increases by arc ion enhanced electromagnetic quasi contraction of the formation of quasi ion arc, high stiffness, strong penetration, weld quality and stability, greatly improving the production speed (using the MPT-4000 welder machine welding solid material thickness 1.5mm, 441 can reach more than 3 meters per minute, after welding the flaring flanging bending cracking
D, with high frequency vibration on the molten pool, increasing the fluidity of the weld pool, can greatly improve the crack resistance and mechanical properties of the weld.
E, reduced stomatal sensitivity of weld porosity (commonly known as the needle and trachoma) is a typical TIG welding process of welding defects. The existence of porosity will not only lead to stress concentration, but also reduce the corrosion resistance and fatigue life of welded joints, and affect the reliability of welded components. The quasi ionic welding can effectively improve the fluidity of the bath, and the larger arc force will exert mechanical impact on the molten pool, which will be beneficial to the escape of the porosity and the porosity of the weld seam. It can effectively reduce or even eliminate the porosity of welding seam, ensure the appearance of weld formation, and improve the quality of welding seam
F,The weld zone , weld microstructure of conventional TIG welding is dominated by coarse dendrites; quasi ion to weld grain zonal distribution of fine equiaxed non dendrite, and the weld central equiaxed dendrite alternate distribution of grain refinement because of quasi electromagnetic stirring enhanced ion compressed arc weld pool liquidity, reduce the coarse columnar grains in the weld may appear, at the same time, the quasi ion arc energy intensive, in the premise of welding parts are welded, the welding heat input is lower than that of conventional DC TIG welding, directly affect the weld cooling rate and residence time in high temperature beta above the phase transition and heat input, thus the effects of grain size, to get a better joint performance.
G, a comprehensive performance comparison of tensile properties of welded joints. The results show that compared with the conventional TIG welding, welding joint tensile strength of quasi ion is almost the same as the parent material, but the elongation and contraction rate increased by more than 30% and 90%, the joint increased plasticity.
主要技术参数(Main technical parameters)