Aħbarijiet tal-Industrija

Likwidu manjetiku - forma oħra ta 'kalamita

2018-06-26
Huwa tip ta 'partiċella solida li hija magħmula minn partiċelli manjetiċi li d-daqs tal-partiċelli tagħhom huma d-daqs tan-nanometru (diversi għal diversi għexieren ta' nanometri). Jista 'jkun imxerred u sospiż b'mod uniformi f'likwidu tal-ġarr (fluwidu bażi flimkien ma' surfactant) bl-għajnuna ta 'surfactant. Taħlita kollojdali b'żewġ fażijiet, dan il-materjal mhux se jipproduċi separazzjoni solida-likwida anke taħt l-azzjoni tal-gravità, forza ċentrifugali u forza elettromanjetika. Huwa materjal tipiku tan-nanokompost. Kif muri f'Figura 12-1 u Figura 12-2. Manifatturi tal-kalamita qawwija ta 'Gpu manifatturi ta' kalamiti Dongguan

Manifatturi tal-kalamita qawwija ta 'Gpu manifatturi ta' kalamiti Dongguan
  As early as 200 years ago, people had realized the potential of magnetic liquids and tried to produce a stable ferromagnetic suspension, but it was not solved by NASA until the early 1960s. NSNA used a liquid The stable surfactant is prepared by a ball mill method. The colloid is mixed with the fuel and controlled by the permanent magnet to overcome the problem that the fuel cannot work normally in the state of weightlessness. In 1960, the United States succeeded in using magnetic liquids as sealing materials for spacesuits. In the case of magnetic fluids, it is a product that is completely developed to meet actual needs, particularly the needs of the aerospace industry, and has gradually expanded into military and civilian applications. Not only the United States, the former Soviet Union, the United Kingdom, Japan, France, Germany and other developed countries have paid great attention. Many famous big companies have also invested a lot of manpower and material resources for research. Develop and produce magnetic liquids and apply them to aerospace, electronics, telemetry, remote control, machinery, energy, chemical, metallurgy, instrumentation, environmental protection, printing, medical, and sanitation, and become reliable materials for solving complex process problems. At present, foreign magnetic fluid and magnetic fluid devices have been widely used in vacuum equipment, plasma chemical processing equipment, laser systems, damping systems, mineral processing equipment. It is estimated that the production value of magnetic fluid in Japan in 2000 was nearly 20 billion yen. Manifatturi tal-kalamita qawwija ta 'Gpu manifatturi ta' kalamiti Dongguan

Fl-istess ħin bħar-riċerka u l-iżvilupp, l-iskambji xjentifiċi u teknoloġiċi u l-kollaborazzjonijiet bejn il-pajjiżi żdiedu wkoll. Fl-1977, l-ewwel konferenza internazzjonali dwar fluwidi manjetiċi saret fl-Italja. Minn dakinhar, saru konferenzi internazzjonali kull tliet snin fid-dinja u disgħa saru miżmuma s'issa. Sessjoni.