JPH03274281A - Method for screwing and treating magnesium alloy - Google Patents
Method for screwing and treating magnesium alloyInfo
- Publication number
- JPH03274281A JPH03274281A JP7525490A JP7525490A JPH03274281A JP H03274281 A JPH03274281 A JP H03274281A JP 7525490 A JP7525490 A JP 7525490A JP 7525490 A JP7525490 A JP 7525490A JP H03274281 A JPH03274281 A JP H03274281A
- Authority
- JP
- Japan
- Prior art keywords
- magnesium alloy
- screwing
- chromate treatment
- screwed part
- chromating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 10
- 238000009713 electroplating Methods 0.000 claims abstract description 8
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000004532 chromating Methods 0.000 abstract 3
- 238000003754 machining Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はマグネシウム合金のねじ穴加工処理方法に関し
、特にマグネシウム合金製品に加工するねじ穴の表面処
理に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for machining screw holes in magnesium alloys, and particularly to surface treatment of screw holes to be machined in magnesium alloy products.
マグネシウム合金は腐食され易いので、ねじ穴加工後に
防錆及び電気的特性向上のための所定の電気めっきを施
している。第２図は従来のマグネシウム合金のねし穴加
工処理方法を示す断面図であり、マグネシウム合金１に
ねじ穴２が加工された後、電気めつき３が施された状態
を示している。Magnesium alloys are easily corroded, so after the screw holes are machined, they are electroplated to prevent rust and improve electrical properties. FIG. 2 is a cross-sectional view showing a conventional method for processing a magnesium alloy with a tapped hole, and shows a state in which a screw hole 2 is formed in a magnesium alloy 1 and then electroplating 3 is applied.
上述した従来のマグネシウム合金のねじ穴加工処理方法
は、電気めっき工程において、めっき電解条件が悪いた
めに、マグネシウム合金に加工されたねし穴の中はめっ
きが付きに＜＜、めっき厚不足の部分が生じ、残留した
めつき液等によって腐食されるという欠点がある。The above-mentioned conventional method for machining threaded holes in magnesium alloys does not allow the plating to adhere to the inside of the threaded holes in the magnesium alloy due to poor plating electrolytic conditions during the electroplating process. This has the disadvantage that it is corroded by the remaining staining liquid and the like.
本発明のマグネシウム合金のねじ穴加工処理方法は、所
定の電気めっきを施して後ねじ穴加工を行いその後クロ
メート処理を施すことを特徴とする。The method for processing threaded holes in a magnesium alloy according to the present invention is characterized in that a predetermined electroplating process is performed, the threaded holes are processed, and then a chromate treatment is performed.
次に図面を参照して本発明を説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一？マグネシウム合金ねじ穴加工処理
方法を示す断面図である。同図において、マグネシウム
合金１に所定の電気めっき３を施した快、ねじ穴２を加
工する。ねじ穴２を加工することによってマグネシウム
合金１の素地が露出するので、この部分の防錆処理とし
てクロメート処理４を施す、このクロメート処理工程に
おいて、電気めっき３の部分もクロメート処理液に浸さ
れるが、クロメート処理は、極めて短時間に完了するの
で、処理液に侵されることはなく、ねじ穴２の部分のみ
にクロメート処理４がなされ、マグネシウム合金１が腐
食されるのを防止することができる。Is Figure 1 part of the invention? FIG. 3 is a cross-sectional view showing a method for machining a magnesium alloy screw hole. In the figure, a screw hole 2 is machined on a magnesium alloy 1 which has been subjected to a predetermined electroplating 3. By machining the screw hole 2, the base material of the magnesium alloy 1 is exposed, so a chromate treatment 4 is applied to this part as a rust prevention treatment.In this chromate treatment process, the electroplated part 3 is also immersed in the chromate treatment solution. However, since the chromate treatment is completed in an extremely short time, the chromate treatment 4 is performed only on the screw hole 2 without being attacked by the treatment solution, and the magnesium alloy 1 can be prevented from being corroded. .
以上説明したように本発明のマグネシウム合金のねじ穴
加工処理方法によれば、マグネシウム合金に所定の電気
めっきを施して後、ねじ穴を加工を行い、その後クロメ
ート処理を施すことによって、ぬし大部分でめっき厚不
足に起因する腐食が発生するのを防止することができる
という効果がある。As explained above, according to the method for processing threaded holes in a magnesium alloy of the present invention, after applying a predetermined electroplating to the magnesium alloy, processing the threaded holes, and then applying chromate treatment, the screw holes can be machined to size. This has the effect of preventing corrosion caused by insufficient plating thickness in some areas.
工処理方法を示す断面図、第２図は従来のマグネシウム
合金のわじ穴加工処理方法を示す断面図である。FIG. 2 is a cross-sectional view showing a conventional method for drilling holes in magnesium alloys.
１・・・マグネシウム合金、２・・・ねじ穴、３・・・
電気めっき、４・・・クロメート処理。1... Magnesium alloy, 2... Screw hole, 3...
Electroplating, 4...Chromate treatment.
Claims (1)
ロメート処理を施すことを特徴とするマグネシウム合金
のねじ穴加工処理方法。A method for processing threaded holes in a magnesium alloy, which comprises processing a threaded hole after a predetermined electroplating process, and then subjecting it to chromate treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7525490A JPH03274281A (en) | 1990-03-22 | 1990-03-22 | Method for screwing and treating magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7525490A JPH03274281A (en) | 1990-03-22 | 1990-03-22 | Method for screwing and treating magnesium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03274281A true JPH03274281A (en) | 1991-12-05 |
Family
ID=13570899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7525490A Pending JPH03274281A (en) | 1990-03-22 | 1990-03-22 | Method for screwing and treating magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03274281A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008093335A (en) * | 2006-10-16 | 2008-04-24 | Bridgestone Sports Co Ltd | Metallic golf club head |
-
1990
- 1990-03-22 JP JP7525490A patent/JPH03274281A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008093335A (en) * | 2006-10-16 | 2008-04-24 | Bridgestone Sports Co Ltd | Metallic golf club head |
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