A heat-sensitive iron-based amorphous alloy, its preparation method, and a magnetic temperature-controlled switch prepared from the alloy
An iron-based amorphous alloy, temperature-controlled switch technology, used in thermal switch parts, heating/cooling contact switches, magnetic objects, etc., can solve problems such as limiting magnetic temperature-controlled switches, and achieve Curie temperature controllable, The effect of excellent soft magnetic performance and low cost
Active Publication Date: 2020-06-05
CHINA UNIV OF MINING & TECH
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Problems solved by technology
However, it is difficult for ferrite soft magnetic materials to meet these performance requirements at the same time, which greatly limits the application of magnetic temperature control switches in sewage treatment, fire sprinklers, internal combustion engine cooling water systems, etc.
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Embodiment
[0026] This embodiment is a heat-sensitive iron-based amorphous alloy, a preparation method thereof, and a magnetic temperature control switch prepared from the alloy.
[0027] The atomic composition of the thermosensitive iron-based amorphous alloy of the present embodiment is Fe 63 Cr 5 Nb 4 Y 6 B 22 .
[0028] The preparation method of the heat-sensitive iron-based amorphous alloy comprises the following steps:
[0029] First, according to the nominal composition of the alloy, the atomic percentage of different elements of the alloy is converted into mass percentage, and the high-purity raw materials are weighed in proportion: Fe (99.99%), B (99.7%), Cr (99.99%), Nb (99.99%) ) and Y (above 99%) are reserved. will press Fe 63 Cr 5 Nb 4 Y 6 B 22 The raw materials with the proportion ratio are mixed and placed in the water-cooled copper crucible of the arc melting furnace, and the vacuum is lowered to less than 5×10 -5 Pa, then fill it with argon gas until the pres...
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Abstract
The invention discloses a thermosensitive fe-based amorphous alloy, a preparation method thereof and a magnetic temperature control switch prepared through the alloy. The atomic composition of the alloy is Fe68-xCrxNbyYzBm, wherein x is 0 to 9, y is 2 to 5, z is 3 to 10, m is 16 to 25, and y plus z plus m equals to 32. The preparation method comprises the steps of step I, preparation of a master ingot: converting atomic percent into mass percent, weighing raw materials, putting the raw materials into a high temperature furnace prepared in advance, and carrying out repeated smelting under the existing of a protective gas to prepare the master ingot; and step II, preparation of the thermosensitive fe-based amorphous alloy: taking the master ingot out of the high temperature furnace which iscooled to the room temperature, putting the master ingot into alcohol, cleaning the master ingot through ultrasonic waves, crushing the master ingot into blocks, and then, preparing the fe-based amorphous alloy through a copper mold casting method. According to thermosensitive fe-based amorphous alloy, the preparation method thereof and the magnetic temperature control switch prepared through thealloy, precision, performance stability, reliability, durability and energy conservation performance of the temperature control switch are greatly improved.
Description
technical field [0001] The invention relates to a method for preparing a heat-sensitive amorphous alloy, and also relates to an amorphous magnetic temperature control switch. Background technique [0002] The magnetic temperature control switch has excellent characteristics such as high temperature control accuracy, stable performance, reliability, durability and energy saving. Temperature limit, heat preservation, temperature monitoring of solar power generation systems, heat preservation of gas boilers and automatic blowers, cold start, hot start and water temperature control of automobiles, temperature compensation of electronic components, air supply switching of cold rooms and greenhouses, video recorders and recorders Moisture-proof, seedling box, nursery room, washing equipment, color video recorder, heat preservation of constant temperature room, building fire sprinkler, temperature control of internal combustion engine cooling water system, overheat (current) protec...
Claims
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IPC IPC(8): C22C45/02H01F1/153H01F1/16H01H37/58H01H37/72
CPCC22C33/003C22C45/02H01F1/15325H01F1/15341H01F1/16H01H37/58H01H37/72
Inventor 杨卫明刘海顺莫金勇张月陈哲王明梓
Owner CHINA UNIV OF MINING & TECH