A manufacturing method for adjusting the heat treatment deformation of a similar magnetic sensor

Abstract

The present invention relates to the field of heat treatment deformation technology, and in particular to a manufacturing method for adjusting the heat treatment deformation of a similar magnetic inductor. The inductor is classified into size-symmetrical inductors and size-asymmetrical inductors by symmetry. For size-symmetrical inductors, different inductors use magnetic inductors of different thicknesses to compensate for deformation. Inductors with small deformation use magnetic inductors with large thickness, and inductors with large deformation use magnetic inductors with small thickness. For size-asymmetrical inductors, the deformation is adjusted by the deflection of the installation position of the magnetic inductor. The induction deformation decreases when the inductor is biased toward a thick area, and increases when the induction deformation increases when the inductor is biased toward a thin area. A controllable deformation area can be obtained by continuously adjusting the thickness and deflection. At the same time, the stability is good, and the manufacturing requirements for the inductor are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment deformation, in particular to a manufacturing method for adjusting the heat treatment deformation amount of a similar magnetic conductive inductor. Background Art

[0002] Induction hardening is one of the main process methods to improve the wear resistance and fatigue life of parts. Since the surface hardness after induction hardening is very high, the subsequent machining tool loss is large. Therefore, the process requirements for induction quenching, in addition to surface hardness, hardened layer depth, martensitic structure grade, etc., also require small deformation and consistent deformation rules to reduce or eliminate fine processing.

[0003] The dimensional deformation during heat treatment is the result of the combined effects of multiple factors such as thermal stress and structural stress. Compared with technical parameters such as machining dimensions and hardened layer depth, it is more difficult to adjust through process parameters. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem of inconsistent deformation of existing similar magnetic inductors, the present invention provides a manufacturing method for adjusting the heat treatment deformation of similar magnetic inductors. By classifying the symmetry of the inductors, they are divided into size-symmetrical inductors and size-asymmetrical inductors. For size-symmetrical inductors, different inductors use magnetic inductors of different thicknesses to compensate for deformation. Inductors with small deformation use magnetic inductors with large thickness, and inductors with large deformation use magnetic inductors with small thickness. For size-asymmetrical inductors, the deformation is adjusted by the deflection of the installation position of the magnetic inductor. The induction deformation becomes smaller in the area with thicker dimensions, and becomes larger in the area with thinner dimensions. By continuously adjusting the thickness and deflection, a controllable deformation area can be obtained. At the same time, the stability is good, and the manufacturing requirements for the inductor are reduced, which effectively solves the above problems.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A manufacturing method for adjusting the heat treatment deformation of a similar magnetic conductive inductor, firstly determining the symmetry of the inductor, and then dividing the inductor into two categories according to the symmetry, namely, a symmetrical inductor and an asymmetrical inductor.

[0007] When the induction element is a symmetrical induction element, different inductors use magnetic conductors of different thicknesses to compensate for deformation;

[0008] When the induction element is an induction element with asymmetric size, the deformation amount is adjusted by the deflection amount of the installation position of the magnetic conductor.

[0009] Specifically, when different sensors use magnetic conductors of different thicknesses to compensate for deformation, the sensor with a small deformation amount uses a magnetic conductor with a large thickness, and the sensor with a large deformation amount uses a magnetic conductor with a small thickness.

[0010] Specifically, when the deformation amount is adjusted by the deflection amount of the installation position of the magnetic conductor, the induced deformation amount becomes smaller when it is biased toward the thick area, and the induced deformation amount becomes larger when it is biased toward the thin area.

[0011] The beneficial effects of the present invention are as follows: the present invention provides a manufacturing method for adjusting the heat treatment deformation of the same type of magnetic inductor. By classifying the symmetry of the inductor, it is divided into size-symmetrical inductors and size-asymmetric inductors. For size-symmetrical inductors, different inductors use magnetic inductors of different thicknesses to compensate for deformation. Inductors with small deformation use magnetic inductors with large thickness, and inductors with large deformation use magnetic inductors with small thickness. For size-asymmetric inductors, the deformation is adjusted by the deflection of the installation position of the magnetic inductor. The induction deformation becomes smaller in the area with thicker dimensions, and becomes larger in the area with thinner dimensions. By continuously adjusting the thickness and deflection, a controllable deformation area can be obtained. At the same time, the stability is good, and the manufacturing requirements for the inductor are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of a method for adjusting the size deformation of a magnetic conductor of a size-symmetrical induction component of the present invention;

[0014] Figure 2 It is a schematic diagram of a method for adjusting the size of a magnetic conductor whose size does not correspond to an induction element of the present invention;

[0015] Figure 3 is the part diagram of the present invention and the induction hardening area (shaded area);

[0016] Figure 4 It is a schematic diagram of the present invention in which the magnetic conductor is adjusted to the right side.

[0017] In the figure, 1. Copper ring sensor; 2. Magnetic conductor; 3. Workpiece (sensing part); 4. Insulating plate. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] A manufacturing method for adjusting the heat treatment deformation of a similar magnetic conductive inductor, firstly determining the symmetry of the inductor, and then dividing the inductor into two categories according to the symmetry, namely, a symmetrical inductor and an asymmetrical inductor.

[0020] When the induction element is a symmetrical induction element, different inductors use magnetic conductors of different thicknesses to compensate for deformation;

[0021] When the induction element is an induction element with asymmetric size, the deformation amount is adjusted by the deflection amount of the installation position of the magnetic conductor.

[0022] Specifically, when different sensors use magnetic conductors of different thicknesses to compensate for deformation, the sensor with a small deformation amount uses a magnetic conductor with a large thickness, and the sensor with a large deformation amount uses a magnetic conductor with a small thickness.

[0023] Specifically, when the deformation is adjusted by the deflection of the installation position of the magnetizer, the induced deformation becomes smaller when it is biased towards the thick area, and the induced deformation becomes larger when it is biased towards the thin area. Principle: The deformation is smaller in the area with large size.

[0024] Embodiment 1:

[0025] Material grade: 605M36, material standard BS 970-3;

[0026] Hardened area: See the shaded area in the figure below;

[0027] Induction hardening method: scanning induction hardening.

[0028] Batch induction hardening. There are two sensors of the same type, numbered 1# sensor and 2# sensor. The arc surface induction hardening size detection data shows that the average size of the products R23 produced by the two sensors differs by about 0.008mm. The comparison data is shown in Table 1.

[0029] Table 1 Dimensional comparison of 1# inductor and 2# inductor after induction hardening (mm)

[0030]

[0031] The size of the 1# sensor after heat treatment is 23.012-23.039mm, with an average value of 23.022mm.

[0032] The size of the 2# sensor after heat treatment is 22.997-23.030mm, with an average of 23.014mm. Some of the sizes exceed the lower limit by 0.002mm.

[0033] By deflecting the installation position of the magnetizer, the magnetizer is biased to the right side where the workpiece is thicker. Figure 4 , the depth of the hardened layer in the area with small thickness on the left side can be reduced, and the depth of the hardened layer in the area with large thickness on the right side can be increased, thereby reducing the deformation and narrowing the deformation difference between the 1# and 2# inductors. The dimensions of the 2# inductor magnet after deflection are shown in Table 2.

[0034] Table 2 Dimensions of the magnetizer of the 2# inductor after tilting (mm)

[0035]

[0036] The magnetic conductor of the 2# sensor is tilted, and the size after heat treatment is 23.011-23.038mm, with an average value of 23.021mm, which is comparable to the value of the 1# sensor.

[0037] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for manufacturing a similar magnetic inductor to adjust the amount of heat treatment deformation, characterized in that: First, determine the symmetry of the sensor. According to the symmetry, the sensor can be divided into two categories: symmetrical sensor and asymmetrical sensor. When the induction parts are symmetrical in size, different inductors use magnetic conductors of different thicknesses to compensate for deformation. Inductors with small deformation use magnetic conductors with large thickness, and inductors with large deformation use magnetic conductors with small thickness. When the induction piece is asymmetric in size, the deformation is adjusted by the deflection of the installation position of the magnetic conductor. When it is biased towards a thick area, the induction deformation becomes smaller, and when it is biased towards a thin area, the induction deformation becomes larger.

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