蒸汽管道

焊接应力,由于焊接和焊接成分而产生应力。

蒸汽管道

在焊接引起的焊接过程中产生的焊缝的形状和大小的变化。焊接过程的温度场不平坦,并且由于其局部塑性变形和不同组织的体积引起的是焊接应力和变形的根本原因。当焊接的消失不引起不均匀的温度场时,这种应力和变形的焊接碎片称为瞬态焊接应力和变形。焊接残余应力和变形消失后,应变和变形温度场。

Welding stresses is including thermal stress and residual stress.

Thermal welding refers to the shape and size of stress changes in the welding process, the internal temperature of the weldment due to the stress caused by the difference, and soldering heat stress generated during the welding process caused weldment weldment. Uniform temperature field in the welding process and a partial specific volume of the plastic deformation and the type of tissue is caused by it to produce weld root cause thermal stress and deformation. When a non-uniform temperature field welding caused not disappeared, the presence of transient weldment welding stress and deformation; disappear there after welding temperature field of welding residual stress and deformation.

Welding residual stresses are not yet members already beginning to bear loads and stresses on the member section exists in the component service process, and other work load caused by the stress suffered by the superposition to produce a secondary deformation and residual stress redistribution, not only will reduce the stiffness and stability of the structure and the joint action of temperature and media, but also seriously affect the fatigue strength of the structure, resistance to brittle fracture ability, the ability to stress corrosion cracking resistance and high temperature creep cracking.

相关的无缝管道:

Weled steel pipespecification, Standard and identification

焊接钢管(用焊接制造的钢管)是由扁平板(称为Skelp)制成的管状产品,形成,弯曲并制备用于焊接。

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