Tu Weiwei
5 Papers
2 Citations
Tu Weiwei is an academic researcher. The author has contributed to research in topics: Alloy & Ferrite (magnet). The author has an hindex of 1, co-authored 5 publications.
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Papers
Patent
Preparation method of core-shell soft magnetic composite
Lei Chenglong,Tu Weiwei,Tang Hongzhe,Shaolong Tang,Youwei Du +4 more
- 28 Sep 2018
TL;DR: In this article, a preparation method of a core-shell soft magnetic composite has been described, which includes the following steps of S1 preparing quantitative magnetic metal powder; S2 determining corresponding molar mass of a required metal element Mn or Ni, Fe and Zn according to a wrapping amount of the required Mn-Zn ferrite or Ni-Zns ferrite; S3 adding deionized water to the magnetic metal powders; S4 slowly dripping the metal salt solution of S2, stirring and dripping a precipitant at the same time, controlling pH at
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Patent
Method for preparing strontium ferrite from sludge obtained by stainless steel etching
Lei Chenglong,Tu Weiwei,Tang Hongzhe,Du Youwei +3 more
- 05 Jul 2019
TL;DR: In this article, a method for preparing strontium ferrite from sludge obtained by stainless steel etching is presented, which comprises the steps of preparing an etching dry material, preparing a pre-sintered material, adding additives, performing ball milling and pressing, and performing sintering.
Patent
Preparation method of spherical Fe-Ni alloy powder
Lei Chenglong,Tu Weiwei,Tang Hongzhe,Shaolong Tang,Youwei Du +4 more
- 25 Sep 2018
TL;DR: In this paper, the spherical Fe-Ni alloy powder is synthesized simply and effectively, the powder is compact in particle and free of pores and bulk inclusions, and Fe and Ni are uniformly distributed.
Patent
Preparation method of emulsion for coating high-temperature-resistant and flame-retardant glass fiber sleeve
Lei Chenglong,Tu Weiwei,Wu Yang,Tang Hongzhe +3 more
- 21 Jun 2019
TL;DR: In this paper, a preparation method of emulsion for coating a high-temperature resistant and flame-retardant glass fiber sleeve is presented, which comprises the following steps in sequence: S1, mixing tetrafunctional glycidyl amine epoxy resin and brominated epoxy resins in a forced mixer uniformly to obtain a mixed solution; S2, heating the mixed solution obtained in step S1 to 40-70 DEG C, adding the curing agent, the accelerator, the flexibilizer and polymethylsiloxane, performing mixing in
Patent
Manufacturing method of adhesive for moulding of dry-press anisotropic permanent magnetic ferrites
Lei Chenglong,Tu Weiwei,Tang Hongzhe +2 more
- 20 Aug 2019
TL;DR: In this paper, a manufacturing method of an adhesive for molding permanent magnetic ferrites, successively comprising the following steps: S1, mixing paraffin with the particle size being 5-25 mm and calcium stearate at the mass ratio of 1:1; S2, crushing the mixed materials in the Step 1 by using a low-temperature liquid nitrogen crushing method so as to obtaina mixed powder of 0.8-2.5 microns; and S3, uniformly mixing the mixed powder and hot ethanol at the minimum ratio of 2:1.