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Direct current wet-type electromagnet for valve

An electromagnet and wet-type technology, applied in the field of machinery, can solve the problems of reduced service life and use effect, high energy consumption and large iron loss, etc., achieve low thermal expansion coefficient, improve use performance, and reduce iron loss.

Inactive Publication Date: 2018-05-08
NINGBO YAOFENG HYDRAULIC ELECTRICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing iron cores are made of soft magnetic materials, which often have the problems of large iron loss and high energy consumption, and the wet electromagnet is immersed in oil for a long time, which is prone to rust problems, especially the iron core, which reduces the Service life and use effect

Method used

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  • Direct current wet-type electromagnet for valve

Examples

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Effect test

Embodiment 1

[0030]The electromagnet for a DC wet valve in this embodiment includes a coil, a guide sleeve, a fixed magnetic pole and an iron core. The iron core is made of a silicon steel sheet, and the silicon steel sheet includes a core, a transition layer, an auxiliary layer and an insulating and corrosion-resistant layer.

[0031] Wherein, the core is made of a silicon steel alloy comprising the following mass percentage components, 0.03%C, 3.5%Si, 1.1%Al, 0.3%Mn, 0.05%Cr, 0.5%Sn, 0.3%N, 0.06%Mo, 0.08% -0.16% Ga, 0.2-0.6% Ag, 0.005-0.01% Gd, the rest is iron and unavoidable impurities, N element is added in the form of ferrochromium nitride;

[0032] The transition layer is a silicon-steel alloy layer doped with 3.0% by mass of carbon fiber. The content of carbon fiber gradually increases from the interface between the core and the transition layer to the interface between the transition layer and the insulating and corrosion-resistant layer. The length of the carbon fiber is 0.1-0.8 ...

Embodiment 2

[0036] The electromagnet for a DC wet valve in this embodiment includes a coil, a guide sleeve, a fixed magnetic pole and an iron core. The iron core is made of a silicon steel sheet, and the silicon steel sheet includes a core, a transition layer, an auxiliary layer and an insulating and corrosion-resistant layer.

[0037] Wherein, the core is made of a silicon steel alloy comprising the following mass percentage components, 0.04%C, 4.3%Si, 1.7%Al, 0.4%Mn, 0.06%Cr, 0.7%Sn, 0.4%N, 0.07%Mo, 0.09% %Ga, 0.5%Ag, 0.007%Gd, the rest is iron and unavoidable impurities, and N element is added in the form of ferrochromium nitride;

[0038] The transition layer is a silicon-steel alloy layer doped with 4.0% by mass of carbon fiber. The content of carbon fiber gradually increases from the interface between the core and the transition layer to the interface between the transition layer and the insulating and corrosion-resistant layer. The length of the carbon fiber is 0.1-0.8 μm, the aspe...

Embodiment 3

[0042] The electromagnet for a DC wet valve in this embodiment includes a coil, a guide sleeve, a fixed magnetic pole and an iron core. The iron core is made of a silicon steel sheet, and the silicon steel sheet includes a core, a transition layer, an auxiliary layer and an insulating and corrosion-resistant layer.

[0043] Wherein, the core is made of a silicon steel alloy comprising the following mass percentage components, 0.04%C, 4.3%Si, 1.7%Al, 0.4%Mn, 0.06%Cr, 0.7%Sn, 0.4%N, 0.07%Mo, 0.09% %Ga, 0.5%Ag, 0.007%Gd, the rest is iron and unavoidable impurities, and N element is added in the form of ferrochromium nitride;

[0044] The transition layer is a silicon-steel alloy layer doped with 5.5% by mass of carbon fiber. The content of carbon fiber gradually increases from the interface between the core and the transition layer to the interface between the transition layer and the insulating and corrosion-resistant layer. The length of the carbon fiber is 0.1-0.8 μm, the aspe...

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Abstract

The invention relates to a direct current wet-type electromagnet for a valve, and belongs to the technical field of machinery. The direct current wet-type electromagnet for the valve comprises a coil,a guide sleeve, a fixed magnetic pole and an iron core. The iron core is made of silicon steel sheets, and each silicon steel sheet comprises a core part, a transition layer and an insulative corrosion-resistant layer. Each core part is made from silicon steel alloy prepared from, by mass, 0.03-0.05% of C, 3.5-5.5% of Si, 1.1-2.3% of Al, 0.3-0.5% of Mn, 0.05-0.07% of Cr, 0.5-0.8% of Sn, 0.3-0.5%of N, 0.06-0.08% of Mo, 0.08-0.16% of Ga, 0.2-0.6% of Ag, 0.005-0.01% of Gd and the balance iron and inevitable impurities. The direct current wet-type electromagnet for the valve has the advantages of being little in iron loss, resistant to corrosion and long in service life.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to an electromagnet for a DC wet valve. Background technique [0002] In the hydraulic equipment used in construction machinery and industrial machinery, solenoid valves are usually used to achieve electro-mechanical conversion, which has the advantages of large driving force, easy maintenance, and low cost. The driving part electromagnet in the solenoid valve is mainly divided into dry electromagnet and wet electromagnet. The wet electromagnet has gradually replaced the dry and wet electromagnet because of its high performance, long life and high reliability. The main advantages of the wet electromagnet are: (1) The oil in the inner cavity of the electromagnet has a damping effect, which makes the reversing and reset action of the slide valve stable, the hydraulic shock is small, and the commutation noise is small; (2) The oil in the inner cavity of the electromagnet (3) The lubric...

Claims

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Application Information

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IPC IPC(8): H01F1/147H01F1/22H01F7/08C09D167/00C09D103/04C09D5/08C09D5/25C09D7/61C09D7/63
CPCC08K2201/011C09D5/08C09D167/00H01F1/14783H01F1/22H01F7/081C08L3/04C08K5/098C08K5/09C08K3/34
Inventor 张峰
Owner NINGBO YAOFENG HYDRAULIC ELECTRICS
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