Machining process of bi-metal piece and bi-metal piece machined through machining process

Abstract

The invention discloses a machining process of a bi-metal piece and the bi-metal piece machined through the machining process. The bi-metal piece is included. The step of laser stamp-marking on the bi-metal piece is included. The stamping step is further included before the laser stamp-marking step. In the stamping step, the bi-metal piece is stamped through a male die and a female die into a spherical surface. The bi-metal piece obtained through the machining process of the bi-metal piece comprises a body. A laser stamp mark is arranged on the surface of the body, and the elasticity recoverytime of the bi-metal piece can be kept constant after the bi-metal piece is cooled after being subjected to multiple times of temperature distortion. The invention further aims at providing an adjusting method of fusing currents of the bi-metal piece. When the fusing currents need to be increased, the laser stamp mark is added to the concave surface of the body, and when the fusing currents need to be reduced, the laser stamp mark is added to the convex surface of the body. The fusing currents of the product can be increased or reduced by adjusting the position of the laser stamp mark, and thefusing currents of the product meet the set requirements.

Description

technical field [0001] The invention relates to a bimetal sheet processing technology and the processed bimetal sheet. Background technique [0002] The bimetal sheet is also called a thermal bimetal sheet. Since the thermal expansion coefficients of each component layer are different, when the temperature changes, the deformation of the active layer is greater than that of the passive layer, so that the whole bimetal sheet will bend to the side of the passive layer. , then the curvature of the composite material changes to produce deformation. Among them, the higher expansion coefficient is called the active layer; the lower expansion coefficient is called the passive layer. However, with the expansion of bimetallic application fields and the advancement of combination technology, three-layer, four-layer, and five-layer bimetals have appeared in modern times. In fact, any combined material that changes shape depending on temperature changes is still customarily called a t...

AI Technical Summary

Problems solved by technology

[0003] The problem with the traditional bimetal is that, after repeated heat deformation and cold elastic recovery, the cold elastic recovery time of the bimetal will become more and more unstable, and even appear to be unable to recover elastically when cooled. situation, it is necessary to improve

[0004] In addition, once the traditional bimetal strip is processed, its fusing current has been determined and cannot be adjusted. However, in practical applications, it often occurs that the fusing current of the processed bimetal strip is greater than or less than the set current.

In the past, such products could only be treated as waste products.

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