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精密无缝钢管冷加工硬化处理带来的作用

来源:http://www.jnxxjm.com

【 发布于:2019-03-27 14:37:09 】


精细无缝钢管资料的强度和硬度增加,塑性变形再结晶温度,但塑性和韧性降落。也被称为冷作硬化。缘由是,精细无缝钢管的塑性变形过程中,晶粒滑移,呈现位错缠结,细长,破碎和纤维化的粮食,内部精细无缝钢管产生的剩余应力。度与加工和外表层的加工和硬化层深度来表示通常比淬火硬度。

The strength and hardness of fine seamless steel tube increase, and the recrystallization temperature of plastic deformation decreases, but the plasticity and toughness decreases. Also known as cold hardening. The reason is that in the plastic deformation process of fine seamless steel tube, grain slips, dislocation entanglement, slender, broken and fibrous grain, and residual stress produced by fine seamless steel tube. The degree of hardness is usually expressed by the degree of hardening and the depth of the hardening layer on the surface.

冷作硬化是一种与过程办法增强精细无缝钢管、合金的方式(冷加工后,强度明显进步腐朽或合金后),然后是冷冲压工艺办法可能的前提下,有利于构成和不锈钢管的加工,合金金、不合适经过热处置强化。

Cold work hardening is a way to strengthen fine seamless steel pipe and alloy with process method (after cold working, the strength of seamless steel pipe is obviously improved, decayed or alloy), and then cold stamping process method is possible, which is conducive to the formation and processing of stainless steel pipe, alloy gold, not suitable for heat treatment and strengthening.

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冷拔后,滚动和喷丸处置,能够显著进步外表强度精细无缝钢管资料,零件和部件。该局部应力,常常超越资料屈从极限的部分应力的某些局部,塑性变形惹起的,由于加工硬化限制继续塑性变形的开展,能够进步零部件的平安度。精细无缝钢管零件在冲压,塑性变形强化的陪同下,转移到四周的非硬化的局部的变形。经过这样重复交替过冷冲压变形有平均截面。

After cold drawing, rolling and shot peening treatment can significantly improve the appearance strength of fine seamless steel pipe information, parts and components. The local stress often surpasses some parts of the stress that the data yield to the limit. Plastic deformation is caused by plastic deformation. Due to the limitation of work hardening, the development of plastic deformation can improve the safety of parts. Accompanied by stamping and plastic deformation strengthening, fine seamless steel tube parts are transferred to non-hardening local deformation around them. After such repeated alternating supercooling stamping deformation, there is an average cross section.

精细无缝钢管冷加工硬化的能够进步低碳钢的切削性能,切削易别离。但工作的精细无缝钢管进一步加工艰难的硬化。如冷拔钢丝,由于加工硬化进一步能耗高的画,以至被毁坏,因此要经过中间退火消弭加工硬化,然后绘制。当切削硬脆工件的外表层,和增加切割速度的切削力,刀具磨损等。

The cold working hardening of fine seamless steel tube can improve the cutting performance of low carbon steel, and the cutting is easy to separate. But the work of fine seamless steel tube further processing difficult hardening. For example, cold-drawn steel wire, due to the further high energy consumption of work hardening, and even destroyed, so it has to be annealed in the middle to eliminate work hardening, and then draw. When cutting the surface of hard and brittle workpiece, and increase the cutting speed of cutting force, tool wear and so on.



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