CN103064041B - A kind of method of quick detection amorphous band magnetic property - Google Patents
A kind of method of quick detection amorphous band magnetic property Download PDFInfo
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- CN103064041B CN103064041B CN201210553438.3A CN201210553438A CN103064041B CN 103064041 B CN103064041 B CN 103064041B CN 201210553438 A CN201210553438 A CN 201210553438A CN 103064041 B CN103064041 B CN 103064041B
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Abstract
The present invention relates to a kind of method of quick detection amorphous band magnetic property.The method comprises: the amorphous band that peek segment length does not wait is as measurement sample; Then the thickness of each section of sample is measured; Secondly measure the resistance value of each section of sample, and calculate resistivity; And finally reach a conclusion according to the thickness of each section of sample and resistivity, thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.003u Ω/m≤ρ≤0.025u Ω/m, its iron-loss per unit weight Ps≤0.20W/kg, unit exciting power Ss≤0.4VA/kg.The present invention is by measuring thickness and the resistivity of amorphous band, the Dynamic magnetic property of amorphous band can be evaluated effectively, rapidly, provide monitoring means for stablizing, producing in batches high performance amorphous band, effectively reduce in production run because the instability of technique produces the probability of substandard products, waste product.
Description
Technical field
The present invention relates to the detection field of amorphous band magnetic property, particularly relate to a kind of method of quick detection amorphous band magnetic property.
Background technology
Fe-based amorphous soft magnetic material has excellent magnetic property, can be widely used in transformer core, electric machine iron core, saturable reactor and magnetic head etc.According to statistics, annual about 2,400 hundred million KWh of China's electrical network electric line loss, electric system is due to annual about 2,700 hundred million KWh of low the brought electric energy loss of efficiency.And adopting amorphous band to make the energy-conservation 60%-80% of transformer ratio silicon steel no-load transformer of iron core manufacture, the motor operational efficiency adopting amorphous band to make fixed (turning) sub-iron core can improve more than 15% than common electric machine.Fe-based amorphous soft magnetic material has huge energy-saving effect, and preparation process is polluted low, is considered to high-tech green energy conservation material.
The magnetic property detection technique of current amorphous band is comparatively ripe, the detection method of traditional amorphous thin ribbon magnetic property is, amorphous band is prepared into circular sample, be heat-treated to 300-420 DEG C in the heat-treatment furnace in vertical magnetic magnetic field after, be wound in coil and detect.Whole testing process is complicated, can not meet the demand of on-line checkingi assessment in amorphous band production run far away, and this is also one of the factor of amorphous band of restriction administration measure, high-quality.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, a kind of method of quick detection amorphous band magnetic property is provided.
For achieving the above object, the invention provides a kind of method of quick detection amorphous band magnetic property.The method comprises: the amorphous band that peek segment length does not wait is as measurement sample; Then the thickness of each section of sample is measured; Secondly measure the resistance value of each section of sample, and calculate resistivity; And finally reach a conclusion according to the thickness of each section of sample and resistivity, thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.003u Ω/m≤ρ≤0.025u Ω/m, its iron-loss per unit weight Ps≤0.20W/kg, unit exciting power Ss≤0.4VA/kg.
Preferably, described thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.01u Ω/m≤ρ≤0.02u Ω/m, its iron-loss per unit weight Ps≤0.18W/kg, unit exciting power Ss≤0.3VA/kg.
Preferably, described sample length selection range is 1-300m.
Preferably, the thickness of described sample is recorded by milscale.
Preferably, the resistance value of described sample is recorded by Estimate of Resistance for DC Low Resistance measuring instrument.
The present invention is by measuring thickness and the resistivity of amorphous band, the Dynamic magnetic property of amorphous band can be evaluated effectively, rapidly, provide monitoring means for stablizing, producing in batches high performance amorphous band, effectively reduce in production run because the instability of technique produces the probability of substandard products, waste product.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the quick detection amorphous band magnetic property according to the embodiment of the present invention;
Fig. 2 is according to embodiment of the present invention d=35 μm of amorphous band Ss, Ps change schematic diagram with ρ;
Fig. 3 is according to embodiment of the present invention d=25 μm of amorphous band Ss, Ps change schematic diagram with ρ; And
Fig. 4 is according to embodiment of the present invention d=15 μm of amorphous band Ss, Ps change schematic diagram with ρ.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the method flow diagram of the quick detection amorphous band magnetic property according to the embodiment of the present invention.
In step 101, the amorphous band that peek segment length does not wait as measurement sample, and by smooth the spreading out of measurement sample, ensures to choose corrugationless in the middle of sample, connects phenomenon.
In step 102, according to the measurement sample chosen in step 101, detect the thickness of each section of sample respectively with milscale.
In step 103, detect the resistance value of each section of sample respectively with Estimate of Resistance for DC Low Resistance measuring instrument, and calculate the resistivity of each section of sample.And
In step 104, thickness and resistivity according to detecting each section of sample are reached a conclusion.As shown in Figures 2 to 4, thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.003u Ω/m≤ρ≤0.025u Ω/m, its iron-loss per unit weight Ps≤0.20W/kg, unit exciting power Ss≤0.4VA/kg.In one embodiment, when thickness of amorphous strip d≤35 μm, electricalresistivityρ's size are 0.01u Ω/m≤ρ≤0.02u Ω/m, its iron-loss per unit weight Ps≤0.18W/kg, unit exciting power Ss≤0.3VA/kg.
Finally, further checking can be done with the heat treatment method of routine to the conclusion drawn, test its Specifeca tion speeification, as iron-loss per unit weight Ps and unit exciting power Ss.Object lesson is described as follows:
Example 1: get long 10m, wide is 170mm, and thickness is that the amorphous band of 29-30 μm makes sample, by sample drawout, ensures middle corrugationless, connects phenomenon, detect its resistance value, resistance value ρ=0.017u Ω/m with Estimate of Resistance for DC Low Resistance measuring instrument.Its iron-loss per unit weight Ps=0.156W/kg is detected, unit exciting power Ss=0.186VA/kg by the method for normative heat treatment.Testing result demonstrates the correctness of described conclusion.
Example 2: get long 10m, wide is 142mm, and thickness is that the amorphous band of 27-28 μm makes sample, by sample drawout, ensures middle corrugationless, connects phenomenon, detect its resistance value, electricalresistivityρ=0.0075u Ω/m with Estimate of Resistance for DC Low Resistance measuring instrument.Its iron-loss per unit weight Ps=0.146W/kg is detected, unit exciting power Ss=0.166VA/kg by the method for normative heat treatment.Testing result demonstrates the correctness of described conclusion.
Example 3: get long 10m, wide is 142mm, and thickness is that the amorphous band of 23-25 μm makes sample, by sample drawout, ensures middle corrugationless, connects phenomenon, detect its resistance value, resistance value ρ=0.0039u Ω/m with Estimate of Resistance for DC Low Resistance measuring instrument.Its iron-loss per unit weight Ps=0.192W/kg is detected, unit exciting power Ss=0.156VA/kg by the method for normative heat treatment.Testing result demonstrates the correctness of described conclusion.
Example 4: get long 10m, wide is 106mm, and thickness is that the amorphous band of 18-19 μm makes sample, by sample drawout, ensures middle corrugationless, connects phenomenon, detect its resistance value, resistance value ρ=0.013u Ω/m with Estimate of Resistance for DC Low Resistance measuring instrument.Its iron-loss per unit weight Ps=0.176W/kg is detected, unit exciting power Ss=0.169VA/kg by the method for normative heat treatment.Testing result demonstrates the correctness of described conclusion.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. detect a method for amorphous band magnetic property fast, comprising:
The amorphous band that peek segment length does not wait is as measurement sample;
Then the thickness of each section of sample is measured;
Secondly measure the resistance value of each section of sample, and calculate resistivity; And
Finally reach a conclusion according to the thickness of each section of sample and resistivity, thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.003 μ Ω m≤ρ≤0.025 μ Ω m, its iron-loss per unit weight Ps≤0.20W/kg, unit exciting power Ss≤0.4VA/kg.
2. method according to claim 1, is characterized in that, described thickness d≤35 μm, electricalresistivityρ's size are the amorphous band of 0.01 μ Ω m≤ρ≤0.02 μ Ω m, its iron-loss per unit weight Ps≤0.18W/kg, unit exciting power Ss≤0.3VA/kg.
3. method according to claim 1, is characterized in that, the length selection range of described sample is 1-300m.
4. method according to claim 1, is characterized in that, the thickness of described sample is recorded by milscale.
5. method according to claim 1, is characterized in that, the resistance value of described sample is recorded by Estimate of Resistance for DC Low Resistance measuring instrument.
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Effective date of registration: 20190428 Address after: 266232 No. 7 Xinyuan East Road, Lancun Town, Jimo City, Qingdao, Shandong Province Patentee after: Qingdao Yunlu Advanced Materials Technology Co., Ltd. Address before: 266232 West Industrial Park, Lancun Town, Jimo City, Qingdao City, Shandong Province Patentee before: Qingdao Yunlu Energy Technology Co., Ltd. |