Linear shape member and producing method therefor

Patent metadata

Field	Value
Publication number	US-10910133-B2
Application number	US-202016738731-A
Country	US
Kind code	B2
Filing date	Jan 9, 2020
Priority date	Jan 24, 2019
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A linear shape member is composed of a linear shape electrical insulating body comprising irregularities on a surface, and a plating layer coating the surface of the electrical insulating body. An average irregularities spacing Sm of the irregularities is not more than 20.0 μm.

First claim

What is claimed is:

1. A linear shape member, comprising:
a linear shape electrical insulating body comprising irregularities on a surface; and
a plating layer coating the surface of the electrical insulating body,
wherein an average irregularities spacing Sm of the irregularities is not more than 20.0 μm.

2. The linear shape member according to claim 1 , further comprising:
a linear shape conductor, with the electrical insulating body coating a periphery of that linear shape conductor, wherein the plating layer acts as a shield.

3. The linear shape member according to claim 1 , wherein a mean spacing of local peaks S of the irregularities is not more than 3.0 μm.

4. The linear shape member according to claim 1 , wherein the average irregularities spacing Sm includes an arithmetic mean value of spacings between projections and neighboring depressions in a surface roughness profile on the surface of the liner shape electrical insulating body.

5. The linear shape member according to claim 4 , wherein a mean spacing of local peaks S of the irregularities is not more than 3.0 μm, the mean spacing of local peaks S including a mean value of spacings between adjacent local asperity peaks of the projections and the neighboring depressions in the surface roughness profile.

6. The linear shape member according to claim 1 , wherein the average irregularities spacing Sm is obtained by sampling a part of a surface roughness profile by a reference length in a direction of a mean line of the surface roughness profile, by calculating, in a sampled part of the surface roughness profile, a sum of lengths of mean line elements of the mean line, each mean line element being in correspondence with one asperity and one valley adjacent to the one asperity, and an arithmetic mean value of spacings between asperities and neighboring valleys in the surface roughness profile.

7. The linear shape member according to claim 1 , wherein the linear shape electrical insulating body includes a fluoropolymer resin.

8. A method for producing a linear shape member, the method comprising:
performing a roughening treatment on a surface of a linear shape electrical insulating body; and
after the roughening treatment, performing a plating treatment on the surface of the electrical insulating body to form a plating layer thereon,
wherein the roughening treatment allows an average irregularities spacing Sm of the irregularities to be reduced to not more than 20.0 μm.

9. The linear shape member producing method according to claim 8 , wherein the roughening treatment is performed by a blasting treatment.

10. The linear shape member producing method according to claim 9 , wherein the blasting treatment includes a dry ice blasting treatment using dry ice particles as a blasting medium, and
wherein, the dry ice blasting treatment is performed under a temperature condition within a range of −80 degrees C. to a room temperature, while particle diameters of the dry ice particles are set in a range of 0.3 mm to 3 mm, and a distance from the surface of the electrical insulating body to a tip of a blasting nozzle for blasting the dry ice particles is set in a range of 0 cm to 10 cm.

11. The linear shape member producing method according to claim 10 , wherein the linear shape electrical insulating body comprises a fluoropolymer resin.

12. The linear shape member producing method according to claim 8 , wherein a mean spacing of local peaks S of the irregularities is not more than 3.0 μm the mean spacing of local peaks S including a mean value of spacings between adjacent local asperity peaks of the projections and the neighboring depressions in the surface roughness profile.

13. The linear shape member producing method according to claim 8 , wherein the roughening treatment is performed by dry ice particles as a blasting medium under a temperature condition within a range of −80 degrees C. to a room temperature with particle diameters of the dry ice particles are set in a range of 0.3 mm to 3 mm.

14. The linear shape member producing method according to claim 8 , wherein the average irregularities spacing Sm is obtained by sampling a part of a surface roughness profile by a reference length in a direction of a mean line of the surface roughness profile, by calculating, in a sampled part of the surface roughness profile, a sum of lengths of mean line elements of the mean line, each mean line element being in correspondence with one asperity and one valley adjacent to the one asperity, and an arithmetic mean value of spacings between asperities and neighboring valleys in the surface roughness profile.

15. A linear shape member, comprising:
a linear shape electrical insulating body; and
a plating layer coating a surface of the electrical insulating body,
wherein, within a region of a depth of up to 1 μm from the surface of the electrical insulating body, a degree of crystallization, Xc, represented by equation 1 below is not lower than 0.512 and not higher than 0.685, where Ic in the equation 1 denotes an absorption peak intensity of a crystalline component in a Fourier transform infrared absorption spectrum in the electrical insulating body, while Ia in the equation 1 denotes an absorption peak intensity of an amorphous component in the Fourier transform infrared absorption spectrum in the electrical insulating body

X
c

=

1
-

(

1
-

I
c

I
a

)

⁢

/

⁢
1.233

(

1
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I
c

I
a

)

.

[

Equation
⁢

⁢
1

]

Assignees

• Hitachi Metals Ltd

Inventors

• Suenaga Kazufumi
• Sagawa Hideyuki
• Sugiyama Takahiro

Classifications

• C23C18/1806

  by mechanical pretreatment, e.g. grinding, sanding · CPC title

• H01B11/06 Primary

  with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens · CPC title

• C23C18/1653

  Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating · CPC title

• H01B13/222

  by electro-plating · CPC title

• C23C18/285

  Sensitising or activating with tin based compound or composition · CPC title