Technical principle
1. New discovery: A new method of memory magnetic field weak magnetic planning
In the mid-1980s, the company's scientists began to study the "memory magnetic field phenomenon." In the process of exploring the changing states of "magnetic domains" and "electron spin magnetic moments" of microscopic substances formed by quantum many-body effect in ferromagnetic materials, it is found that the "vector" of electron spin magnetic moments in the micro arranged magnetic domains in natural ferromagnetic materials is in a disordered state. Under the condition of human intervention, there is the law of changing movement. Applying a moving magnetic field to a ferromagnetic material can change the number of magnetic domains and the electron spin magnetic moment vector, so that it has a moderate low-order magnetic energy product, thus forming a "memory magnetic field".
This discovery is of great significance, not only creates a new microphysical principle of "space magnetic field vector synthesis", but also lays the theoretical foundation of a new branch of magnetism "memory magnetic field". According to this discovery, the company's scientists invented a new "magnetic memory weak magnetic nondestructive testing technology", which can distinguish the physical characteristics of materials in the state of memory magnetic field weak magnetic testing technology, subvert the traditional strong magnetic testing technology, in the field of ferromagnetic materials nondestructive testing, in the international leading level.
Principle of weak magnetic detection technology of steel wire rope
Wire rope intelligent monitoring expert system
2. New invention: memory magnetic field weak magnetic sensing new technology
The magnetic energy product established along the wire rope axial direction is equal, uniform and continuous distribution; The magnetic energy product in any volume element should also be equal and uniform.
The magnetic field line density is the same, the magnetic flux is equal, and the given memory magnetic field is formed.
The memory magnetic field will not disappear with the exit of the external magnetic field, as long as there is no violent mechanical vibration or high temperature and other conditions, it will exist for a long time.
Technical features: wide distance, non-contact detection; Continuous and uninterrupted collection of magnetic energy potential difference information; The damage such as broken wire, wear, rust and fatigue are quantitatively analyzed.
3. New creation: wire rope intelligent testing equipment
● The defects such as broken wire, wear, rust and fatigue produced by the wire rope can form a "memory symbol".
● The magnetic field lines can only be arranged along irregular low-energy paths in the degraded volume elements. With the change of magnetic flux density, the distribution of magnetic energy product appears uneven, and the distribution of magnetic energy potential of each volume element is different.
● The more serious the disintegration degree, the more prominent the magnetic energy potential difference.
● By calibrating the characteristic information of the magnetic energy potential of the normal volume element memory of the wire rope and comparing it with the extracted defect volume element information, the difference of magnetic energy potential caused by the degeneration of the load material can be effectively identified.
● By analyzing the quantitative relationship between the physical field variable information and the corresponding mechanical load performance, the technical goal of wire rope quantitative detection can be realized.
4. Six major innovations and two major breakthroughs
1. Theoretical innovation: The creation of a new principle of "space magnetic field vector synthesis"
2. Method innovation: Discovery of a new method of "magnetic memory planning" (invention patent)
3. Technological innovation: Invention of "weak magnetic sensor" new technology (invention patent)
4. Material innovation: Invention of amorphous soft magnetic alloy thin strip new material (invention patent)
5. Algorithm innovation: Non-destructive evaluation method of steel wire rope load performance (invention patent)
6. Product innovation: Invented steel wire rope weak magnetic detection series products (invention patent)）
Breakthrough 1: Breakthrough from qualitative detection to quantitative detection;
Breakthrough 2: Machine intelligence detection replaces manual detection.
