Bimetal composite grounding nut

A composite grounding and bi-metal technology, applied in the field of nuts in the field of transportation, can solve the problems of lack of weldability, conductivity and corrosion resistance of nuts, to ensure neatness and stability, reduce consumption, high safety and The effect of service life

Inactive Publication Date: 2020-04-14
HUNAN FORHOME COMPOSITE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a bimetallic composite grounding nut to solve the technical problem that a single metal nut lacks excellent weldability, electrical conductivity, and corrosion resistance

Method used

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  • Bimetal composite grounding nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a bimetal composite ground nut, comprising the steps of:

[0042] 1) Select a 300×300×20mm stainless steel plate as the substrate 5, and a 300×300×30mm navy brass plate as the composite plate 4, respectively drill a positioning hole 6 and 8 in the four corners and the center of the opposite surface, with a diameter of 5mm, the depth is 3mm, such as figure 1 shown;

[0043] 2) Use an automatic abrasive belt grinder to remove the oxide layer and other impurities on one side to expose a clean contact surface;

[0044] 3) Use industrial alcohol to clean the surface respectively, and then blow dry;

[0045] 4) Insert the hexagonal diamond-shaped stainless steel column 7 with a diameter of 5mm and a length of 10mm into the base plate 5 and the composite plate 4 respectively, and place them on the platform 9;

[0046] 5) Place a fiberboard 3 with a thickness of 300×300×10mm on the composite board, place expanded ammonium nitrate explosives 2 evenly on t...

Embodiment 2

[0052] A method for preparing a bimetal composite ground nut, comprising the steps of:

[0053] 1) Select a 300×300×22mm aluminum alloy plate as the substrate 5, and a 300×300×28mm stainless steel plate as the composite plate 4, respectively punch a positioning hole 6 and 8 in the four corners and the center of the opposite surface, with a diameter of 5mm , the depth is 3mm, such as figure 1 shown;

[0054] 2) Use an automatic abrasive belt grinder to remove the oxide layer and other impurities on one side to expose a clean contact surface;

[0055] 3) Use industrial alcohol to clean the surface respectively, and then blow dry;

[0056] 4) Insert the hexagonal diamond-shaped stainless steel column 7 with a diameter of 5 mm and a length of 11 mm into the base plate 5 and the composite plate 4 respectively, and place them on the platform 9;

[0057] 5) Place a fiberboard 3 with a thickness of 300×300×10mm on the composite board, place expanded ammonium nitrate explosive 2 eve...

Embodiment 3

[0063] A method for preparing a bimetal composite ground nut, comprising the steps of:

[0064] 1) Select a 300×300×21mm aluminum alloy plate as the substrate 5, and a 300×300×25mm pure copper plate as the composite plate 4, respectively punch a positioning hole 6 and 8 in the four corners and the center of the opposite surface, with a diameter of 5mm , the depth is 3mm, such as figure 1 shown;

[0065] 2) Use an automatic abrasive belt grinder to remove the oxide layer and other impurities on one side to expose a clean contact surface;

[0066] 3) Use industrial alcohol to clean the surface respectively, and then blow dry;

[0067] 4) Insert the hexagonal diamond-shaped stainless steel column 7 with a diameter of 5 mm and a length of 12 mm into the base plate 5 and the composite plate 4 respectively, and place them on the platform 9;

[0068] 5) Place a fiberboard 3 with a thickness of 300×300×10mm on the composite board, place expanded ammonium nitrate explosive 2 evenly ...

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Abstract

The invention discloses a bimetal composite grounding nut and relates to a manufacturing technology of a transportation grounding nut. The method comprises the following steps that two metal plates are selected; positioning holes are punched in four corners and a center of opposite surfaces of the two metal plates for positioning; rust removal, oil removal and blow-drying are performed; then metalstand columns are inserted into the positioning holes; the two metal plates are isolated by a certain distance; and explosive cladding is performed through explosives, and then the bimetal compositegrounding nut is manufactured. Operation is easy, leftover materials are less, and the nut is capable of meeting requirements for weldability, electrical conductivity, corrosion resistance, high bonding strength and the like at the same time, is high in reliability and safety, is long in service life and is capable of being applied to multiple fields of ships, power distribution equipment, transport vehicles, airplanes and the like.

Description

technical field [0001] The invention relates to the technical field of nuts in the field of transportation, in particular to a bimetal composite ground nut and a preparation method thereof. Background technique [0002] In the fields of navigation, rail transit, power transmission and distribution, transportation of flammable and explosive materials, etc., the bottom of the grounding nut is welded together with the ship deck, metal floor, etc., and then connected by mounting screws and grounding wires to achieve good electrical conductivity and high strength. Therefore, the grounding material must not only have excellent strength, corrosion resistance and wear resistance, but also have good weldability, thermal conductivity, electrical conductivity and formability. In the prior art, conventional grounding nuts are usually made of a single metal material, and it is difficult to meet the requirements of weldability, electrical conductivity, corrosion resistance, and connection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/16
CPCH01R43/16
Inventor 曾智恒
Owner HUNAN FORHOME COMPOSITE MATERIALS CO LTD
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