JPH03274903A - Manufacture of waveguide - Google Patents

Abstract

PURPOSE:To improve mold releasing ability by reducing a coefficient of friction when removing the electrodeposit such as copper of Ni with required thickness for coating by plating non-electrolytic Ni to Al alloy in a required shape and blowing conductive coating to core metal including tetrafluoride ethylene in fine holes. CONSTITUTION:The permanent core metal is used while defattering and acid- cleaning the Al alloy, subjecting the non-electrolytic Ni plating and including the tetrafluoride ethylene into fine holes. The conductive coating 3 is applied onto a non-electrolytic Ni plating layer 2, which includes Teflon in the Al alloy and Cu or Ni electric plating 4 is applied. Then, the mold of the plating layer 4 is released. Therefore, a waveguide 5 is obtained. Since the tetrafluoride ethylene is included in the file holes, the wearing resistance of the core metal is improved. On the other hand, the film thickness of the non-electrolytic Ni plating is made uniform and the reproducibility of an original shape is made satisfactory. By including the tetrafluoride ethylene, not only the wearing resistance of Ni is improved but also the coefficient of friction is reduced and the mold can be easily released. Further, the manufacture cost of this waveguide is reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention uses an aluminum alloy as a core metal, electrodeposit copper or nickel, and then removes only the copper or nickel deposits to form a waveguide. This is about the manufacturing method.

[Conventional technology]

Conventional methods for manufacturing waveguides include spraying passivated or conductive paint onto stainless steel.

The core metal is an aluminum alloy that has been electrolessly nickel plated and sprayed with conductive paint. After applying steel or nickel to the core metal, the steel or nickel deposits are removed to create a waveguide in the desired shape. I was getting .

[Problem to be solved by the invention]

Conventional methods of spraying conductive paint on stainless steel and methods of manufacturing waveguides using passivated materials as core metals are as follows:
The heavy core metal significantly hindered waveguide manufacturing efficiency. Furthermore, it takes a great deal of time to process the core metal into the required shape, which increases the cost of the core metal.

Also, how to manufacture a waveguide whose core metal is an aluminum alloy plated with electroless nickel.

Because the adhesive strength between the releasable conductive paint applied to the electroless nickel plating and the electroless nickel plating is excellent, it has been difficult to remove the metal electrodeposit of copper or nickel.

For this reason, there was a drawback that the aluminum core metal plated with electroless nickel was rapidly worn out. It also had the disadvantage of poor corrosion resistance.

This invention was made to improve these conventional problems.
When removing copper or nickel metal electrodeposit with force,
The aim is to reduce frictional resistance and improve mold releasability.

[Means to solve the problem]

As shown in FIG. 1, the method for manufacturing a waveguide according to the present invention involves applying electroless nickel plating to an aluminum alloy having a desired shape, and applying tetrafluoroethylene to the core metal having micropores impregnated with the desired thickness. It has been discovered that a waveguide can be obtained by spraying a conductive paint and removing a desired thickness of copper or nickel deposits on the conductive paint.

[Effect]

Tetrafluoride ethylene impregnated into the micropores of an electroless nickel film applied to aluminum can provide anti-corrosion properties to aluminum, which is the base material of the core metal, and also improve the microporosity of the electroless nickel film. Tetrafluoroethylene impregnated into the holes reduces the coefficient of friction.

The mold releasability between the core metal and copper or nickel plating electrodeposit was improved.

〔Example〕

Examples of the waveguide manufacturing method will be described in detail below.

The permanent core metal for manufacturing the waveguide is made of aluminum alloy that is degreased and pickled as shown in Figure 1.

After electroless nickel plating, the micropores are impregnated with tetrafluoroethylene.

When manufacturing the waveguide t'', as shown in FIG.

Conductive paint (3) is completely applied to the electroless nickel plating layer (2) impregnated with aluminum and alloy (1) and Teflon.

By forming a copper or nickel electroplating (4) and releasing the copper or nickel electroplating layer (4),
The waveguide (5) is manufactured.

〔Effect of the invention〕

As described above, the present invention can be expected to produce the following effects by using a permanent core metal in which an aluminum alloy is electrolessly nickel-plated and then impregnated with tetrafluoroethylene.

The aluminum alloy core is electroless nickel plated, and its micropores are impregnated with tetrafluoroethylene, which can be expected to improve the corrosion resistance of the permanent core.

Furthermore, electroless nickel plating has excellent uniformity of plating film thickness and excellent reproducibility of the original.

In addition, by impregnating the micropores of electroless nickel plating with tetrafluoroethylene, it has the advantage of reducing the coefficient of friction in addition to the wear resistance of electroless nickel. It is expected to be effective in reducing waveguide manufacturing costs by making it easier to release the mold when separating the thickness.

[Brief explanation of drawings]

Figure 1 is a manufacturing process diagram of aluminum alloy permanent core metal for waveguide manufacturing, Figure 2 is a diagram showing the permanent core metal and waveguide for waveguide manufacturing, and (1) is an aluminum alloy permanent core metal manufacturing process diagram. (2) is an electroless nickel plating layer impregnated with tetrafluoroethylene forming the core metal film, (3) is a conductive coating applied to the core metal, (4) is copper or Electrodeposited layer obtained by electroplating of nickel. (5) shows the waveguide after demolding.

Claims (1)

[Claims] Electroless nickel plating is applied to an aluminum alloy of the desired shape, and a conductive paint of the required thickness is sprayed onto a core metal whose micropores in the electroless nickel are impregnated with tetrafluoroethylene, and then conductive paint is applied to the conductive paint. A method for manufacturing a waveguide, in which a waveguide is obtained by plating copper or nickel to a desired thickness and then removing copper or nickel deposits to a desired thickness from the core metal.