demagnetization of a furnace cement

demagnetization of a furnace cement

Magnet Demagnetization Method - Magnets - MPCO

2019-5-31  The main operation of the high-temperature demagnetization method is to put the magnet into a high-temperature furnace for heating, and the magnetic force of the strong magnet is removed after the high-temperature treatment, but the structure of the object inside the magnet

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Demagnetization - an overview ScienceDirect Topics

The technique of chemical demagnetization was developed by Collinson (1965) for investigating the magnetization of red sediments. In this method specimens are immersed in hydrochloric acid for suitable lengths of time, after which they are washed and dried and their magnetization is remeasured.

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Demagnetization factor ‒ LQM ‐ EPFL

Demagnetization factors for ellipsoids Practically useful magnetic materials usually possess a spontaneous magnetization (ferromagnets) or give a large response to magnetic field. For the purpose of precise measurements, it is good to perform a careful analysis of the demagnetization factors, as in such circumstances, the sample shape contributes nontrivially to the effective field acting on the sample.

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Secondary magnetizations from the Clinton-type iron

2019-1-29  extensive demagnetization techniques. In addition, ... magnetizations were done in a Schonstedt furnace, ... calcitic cement, so acid concentrations were cho- sen at low levels until no further calcite dissolution became apparent, whereupon acid normality was increased gradually up to 10N. ...

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Remanence acquisition in a Roman-style gold furnace ...

2008-1-1  The demagnetization process reveals the presence of two components of magnetization as shown in Fig. 6. The low temperature component (smelting component) is due to the heating of the brick in the furnace and the high temperature one (fabrication component) corresponds to its

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Continuous and stepwise thermal demagnetization: are they ...

2009-6-1  The demagnetization data were fitted with a spline and digitized at a set of fixed T before being divided by M S (T). The renormalized curves are smooth without any high-T artefacts. The (T C, 550 °C) and (550 °C, T 0) pTRMs are nearly equal at T 0; pTRM equipartition occurs at a temperature slightly higher than 550 °C. TRM drops to a little over one-half its room-temperature intensity at 550 °C.

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High-alumina cembor cements for low-cement refractory ...

2012-6-8  The clinker for HAC Cembor-73 is made by briquette technology from commercially pure raw materials with a low impurity content. The firing operation is performed in a tunnel furnace. The clinker undergoes comminution in stages, with the crushed product obtained in

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Origin of hematite carrying a Late Paleozoic ...

1994-9-1  Stepwise thermal demagnetization was performed using a three-zone furnace constructed with Lindberg components and contained in three nested mu-metal shields. Remanent magnetization was measured with a threeaxis superconducting magnetometer manufactured by CTF Systems. The demagnetization data were plotted on orthogonal diagrams [31].

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A double-stage nuclear demagnetization refrigerator ...

1980-7-1  The first demagnetization stage of the apparatus contains 4.29 mol. (1.86 kg) of the Van Vleck paramagnet PrNi 5 in an initial field of 6 T. By demagnetization of this stage without additional thermal load, a minimum temperature of 0.19 mK (0.31 mK) was reached when starting from 10 mK (23 mK).

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Arrival and magnetization of carbonaceous chondrites in ...

2020-12-4  e Partial thermal remanent magnetization (pTRM) between 292 °C and room temperature (i, iii, v, vii) followed by demagnetization (ii, iv, vi, viii). All experiments conducted in an Ar atmosphere.

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Thermal, compositional, and compressional demagnetization ...

2015-11-1  Thermal, compositional, and compressional demagnetization of cementite Thermal, compositional, and compressional demagnetization of cementite Walker, David; Li, Jie; Kalkan, Bora; Clark, Simon M. 2015-11-01 00:00:00 The 1 bar Curie temperature, TC, at which cementite (anthropogenic form of the mineral cohenite, nominally Fe3C) abruptly loses ferromagnetism, is found

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High-alumina cembor cements for low-cement refractory ...

2012-6-8  High-alumina cement Cembor-70 was developed for the specific purpose of making second-generation refractory concretes with low and ultra-low cement contents. Table 1 shows the chemical and phase compositions and main properties of cement Cembor-70. In contrast to cement Cembor-73, alteration of the chemical composition of Cembor-70 and rapid firing of the clinker in a rotary furnace

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Palaeomagnetic and rock magnetic study of Lower Devonian ...

2014-11-27  In both laboratories, a non-magnetic furnace, MMTD80, made by Magnetic Measurements (UK) was used for thermal demagnetization. Possible mineralogical changes were monitored by measurements of magnetic susceptibility (Km) at room temperature after each step of thermal demagnetization. Anisotropy of magnetic susceptibility (AMS) was measured for ...

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High pressure magnetic transition in pyrrhotite and impact ...

2003-7-5  Using neutron diffraction under pressure at room temperature, we observed that pyrrhotite undergoes a ferrimagnetic to paramagnetic transition at about 2.8 GPa. Complete demagnetization

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Arrival and magnetization of carbonaceous chondrites in ...

2020-12-4  Thermal demagnetization and pTRM acquisition experiments were conducted using a CO 2 laser 37,38,39,40 in conjunction with a new controlled atmosphere chamber (e.g. Argon or Nitrogen) and ...

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Remagnetization and folding in the frontal Montana Rocky ...

AF demagnetization of the SR sites revealed two vectors, a likely viscous present-day field component and the characteristic remanent magnetization (ChRM). The present-day field component was eliminated by 8–15 mT, and the characteristic remanent magnetization in the samples was nearly completely eliminated by 90–130 mT ( Fig. 3 ).

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Vertical adhesive cement agitator

2013-9-16  Vertical adhesive cement agitator. Vertical adhesive cement agitator. Product description: This machine was suitable for producing rubber thick liquid. The weight ratio of plastic and organic solvent is 1: 2- 1: 20. The vertical adhesive cement agitator was composed of engine base、staving、stirring paddle 、transmission and cooling equipment.

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A 自旋马达之加速度特性

2014-10-21  accelerated cement 速凝水泥 accelerated gum 速成胶 acceleration 自旋马达之加速度特性 acceleration factor 加速因数 ... Acheson furnace 艾其逊炉(制碳化矽用电弧炉) Acheson process 艾其逊法(用电弧炉制碳化矽) acicular cast iron 针状铸体

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四川合一电气科技有限公司_百科技术_冶金工业网

2021-5-17  Main materials: corundum materials, imported cement, etc Scope of application: various types of furnaces used in steelmaking and foundry enterprises Main function: apply it on the inside and outside of the induction coil, protect the induction coil, avoid burning the induction coil when the steel goes through the furnace, and support the coil at the same time.

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A自旋马达之加速度特性.pdf - max文档投稿赚钱

2017-3-24  A自旋马达之加速度特性.pdf,【A 】 acceleration 自旋马达之加速度特性 a-grain 高铝颗粒 acceleration factor 加速因数 abbe refractometer 阿贝折射计 acceleration tube 加速管 abbertite 黑沥青 acceleration voltage 加速电压 ablation 耗损 accelerator 催速 ...

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Thermal, compositional, and compressional demagnetization ...

2015-11-1  Thermal, compositional, and compressional demagnetization of cementite Thermal, compositional, and compressional demagnetization of cementite Walker, David; Li, Jie; Kalkan, Bora; Clark, Simon M. 2015-11-01 00:00:00 The 1 bar Curie temperature, TC, at which cementite (anthropogenic form of the mineral cohenite, nominally Fe3C) abruptly loses ferromagnetism, is found

Read More
Remanence stability and magnetic fabric development in ...

Test samples of W3006 magnetite in a matrix of high‐temperature cement were created to test the thermal stability of thermoremanent magnetization (TRM). A TRM was given to the test samples in a field of 100 μ T at 600°C and was subsequently subjected to stepwise thermal demagnetization in

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Remagnetization and folding in the frontal Montana Rocky ...

AF demagnetization of the SR sites revealed two vectors, a likely viscous present-day field component and the characteristic remanent magnetization (ChRM). The present-day field component was eliminated by 8–15 mT, and the characteristic remanent magnetization in the samples was nearly completely eliminated by 90–130 mT ( Fig. 3 ).

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A LabVIEW software for Thellier paleointensity ...

2016-3-16  The electric furnace of TSpin, operated by a thermocontroller CHINO KP1000, performs thermal demagnetization and pTRM acquisition depending on whether the solenoid coil is turned on or off. To replicate the same thermal history for demagnetization and pTRM acquisition, the furnace was heated up to a target temperature before inserting a specimen.

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Journal of Physics: Conference Series, Volume 1325, 2019 ...

The blast furnace iron-making is a complicated physical and chemical reaction and heat exchange process in a closed shaft furnace. The blast furnace's operator must judge the condition of the furnace in time and accurately, and then take the adjustment measures based on the condition to ensure that the blast furnace is running smoothly.

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TERMINAL MARKINGS AND INTERNAL WIRING

2009-11-19  Magnetizing winding (for initial and maintenance magnetization and demagnetization of permanent magnetic fields)–E1, E2, E3, E4, etc. (NOTE–E1, E3, or other odd-numbered terminals should be attached to the positive terminal of the magnetizing power supply for magnetization and to the negative terminal for demagnetization.)

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Vertical adhesive cement agitator

2013-9-16  Vertical adhesive cement agitator. Vertical adhesive cement agitator. Product description: This machine was suitable for producing rubber thick liquid. The weight ratio of plastic and organic solvent is 1: 2- 1: 20. The vertical adhesive cement agitator was composed of engine base、staving、stirring paddle 、transmission and cooling equipment.

Read More
四川合一电气科技有限公司_百科技术_冶金工业网

2021-5-17  Main materials: corundum materials, imported cement, etc Scope of application: various types of furnaces used in steelmaking and foundry enterprises Main function: apply it on the inside and outside of the induction coil, protect the induction coil, avoid burning the induction coil when the steel goes through the furnace, and support the coil at the same time.

Read More
A 自旋马达之加速度特性

2014-10-21  accelerated cement 速凝水泥 accelerated gum 速成胶 acceleration 自旋马达之加速度特性 acceleration factor 加速因数 ... Acheson furnace 艾其逊炉(制碳化矽用电弧炉) Acheson process 艾其逊法(用电弧炉制碳化矽) acicular cast iron 针状铸体

Read More