JPH07164448A - Aluminum alloy mold - Google Patents
Aluminum alloy moldInfo
- Publication number
- JPH07164448A JPH07164448A JP31714993A JP31714993A JPH07164448A JP H07164448 A JPH07164448 A JP H07164448A JP 31714993 A JP31714993 A JP 31714993A JP 31714993 A JP31714993 A JP 31714993A JP H07164448 A JPH07164448 A JP H07164448A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- alumite coating
- hard alumite
- aluminum alloy
- thickness
- 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.)
- Withdrawn
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金型の表面の凹凸及び
色調の差を目視で観察することにより金型の摩耗の程度
を容易に判定するアルミニウム合金製金型に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum alloy mold for easily determining the degree of wear of the mold by visually observing the unevenness of the surface of the mold and the difference in color tone.
【０００２】[0002]
【従来の技術】従来、トランスファーモールド成形等に
用いられる合成樹脂成形用金型としては、アルミニウム
合金からなる金型面に硬質アルマイト被膜を形成したア
ルミニウム合金製金型が知られており、一例として、特
公昭５９−３５７７０号公報に示されているようなアル
ミニウム合金製金型がある。このアルミニウム合金製金
型は、金型面に交直重畳法または直流定電流法により約
２００μｍ以下の膜厚の硬質アルマイトを施したもので
ある。このアルミニウム合金製金型は、従来の鋼製の金
型と比べて放熱性が向上し、金型の冷却を待つことなく
型離れが良好となり、迅速かつ連続してショットを行う
ことが可能となる等の効果がある。2. Description of the Related Art Conventionally, as a synthetic resin molding die used for transfer molding or the like, an aluminum alloy die in which a hard alumite coating is formed on an aluminum alloy die surface has been known. There is an aluminum alloy mold as disclosed in Japanese Examined Patent Publication No. 59-35770. In this aluminum alloy mold, hard alumite having a film thickness of about 200 μm or less is applied to the mold surface by the alternating direct superposition method or the direct current constant current method. This aluminum alloy mold has improved heat dissipation compared to conventional steel molds, good mold release without waiting for the mold to cool, and quick and continuous shots are possible. There is an effect such as.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来のアル
ミニウム合金製金型では許容摩耗量は約３０μｍとされ
ているが、この硬質アルマイトの摩耗量が許容摩耗量以
内であるか否かの判定は膜厚が厚いために目視では不可
能であるから、断面を顕微鏡で測定するか、または、渦
電流等を用いた膜厚計を用いて測定するかしなければな
らず、簡単に金型の摩耗の程度を知ることができないと
いう欠点があった。By the way, although the allowable wear amount is about 30 μm in the conventional aluminum alloy mold, it is determined whether or not the wear amount of this hard alumite is within the allowable wear amount. Since the film thickness is too thick to be visually observed, it is necessary to measure the cross section with a microscope or with a film thickness meter using eddy current etc. There was a drawback that the degree of wear could not be known.
【０００４】本発明は上記の事情に鑑みてなされたもの
であって、目視により容易に金型の摩耗の程度を判定す
ることができるアルミニウム合金製金型を提供すること
にある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an aluminum alloy mold capable of easily judging the degree of wear of the mold by visual observation.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明は次の様なアルミニウム合金製金型を採用し
た。すなわち、請求項１記載のアルミニウム合金製金型
は、アルミニウム合金からなる金型本体の少なくとも被
成形物に接する金型面に一部が開口された硬質アルマイ
ト被膜が形成され、該アルマイト被膜の下方の前記金型
本体内に該金型面に沿う酸化層が形成され、前記硬質ア
ルマイト被膜の厚みを、この金型の許容摩耗量以上とし
たことを特徴としている。In order to solve the above problems, the present invention employs the following aluminum alloy mold. That is, the aluminum alloy mold according to claim 1 is formed with a hard alumite coating partly opened on the mold surface of the mold body made of aluminum alloy, which is in contact with at least the object to be molded, and below the alumite coating. An oxide layer is formed along the surface of the mold in the mold body, and the thickness of the hard alumite coating is equal to or greater than the allowable wear amount of the mold.
【０００６】また、請求項２記載のアルミニウム合金製
金型は、アルミニウム合金からなる金型本体の少なくと
も被成形物に接する金型面に一部が開口された硬質アル
マイト被膜が形成され、該アルマイト被膜の下方の前記
金型本体内に該金型面に沿う酸化層が形成され、前記硬
質アルマイト被膜の厚みと酸化層の厚みとの和を、この
金型の許容摩耗量以上としたことを特徴としている。Further, in the aluminum alloy mold according to the second aspect of the present invention, a hard alumite coating having a partial opening is formed on at least the mold surface of the mold body made of the aluminum alloy, which is in contact with the object to be molded. An oxide layer along the mold surface is formed in the mold body below the coating, and the sum of the thickness of the hard alumite coating and the thickness of the oxide layer is equal to or more than the allowable wear amount of this mold. It has a feature.
【０００７】[0007]
【作用】本発明のアルミニウム合金製金型では、若干金
属光沢を有する白色のアルミニウム合金からなる金型本
体の表面に、一部が開口され若干金属光沢を有する黄白
色の硬質アルマイト被膜が形成され、前記金型本体内に
若干金属光沢を有する黄白色の酸化層が形成されること
により、前記開口近傍では露出する金型面と硬質アルマ
イト被膜との間に凹凸が発生する。In the aluminum alloy mold of the present invention, a yellow-white hard alumite coating partly opened and having a slight metallic luster is formed on the surface of the main body of a white aluminum alloy having a slight metallic luster. By forming a yellowish-white oxide layer having a slight metallic luster in the mold body, unevenness occurs between the exposed mold surface and the hard alumite coating in the vicinity of the opening.
【０００８】該金型を繰り返し用いて成形すると、ま
ず、硬質アルマイト被膜が摩耗し厚みが減少するので、
この凹凸の差が徐々に狭まり、硬質アルマイト被膜が消
失した場合において凹凸の差が無くなる。該硬質アルマ
イト被膜または該硬質アルマイト被膜と酸化層との和が
約２０μｍ程度より薄くなると下地の金型本体の影響が
現われ、徐々に濃い黄白色から淡い黄白色へと変化す
る。この色調の変化を観察することにより摩耗した硬質
アルマイト被膜または酸化層のおおよその厚みがわか
る。さらに摩耗が進み酸化層が消失した場合において白
色のアルミニウム合金からなる金型面のみとなる。これ
より、露出する金型面と硬質アルマイト被膜との凹凸の
程度及び露出する金型面と硬質アルマイト被膜または酸
化層との色調の差により、この金型のおおよその摩耗量
がわかる。When the mold is repeatedly used, first, the hard alumite coating is worn and the thickness is reduced.
This unevenness difference gradually narrows, and when the hard alumite coating disappears, the unevenness difference disappears. When the hard alumite coating or the sum of the hard alumite coating and the oxide layer becomes thinner than about 20 μm, the influence of the underlying die body appears, and the color gradually changes from dark yellow white to pale yellow white. By observing this change in color tone, the approximate thickness of the worn hard alumite coating or oxide layer can be seen. When the wear further progresses and the oxide layer disappears, only the mold surface made of a white aluminum alloy is left. From this, the approximate amount of wear of this mold can be known from the degree of unevenness between the exposed mold surface and the hard alumite coating and the difference in color tone between the exposed mold surface and the hard alumite coating or oxide layer.
【０００９】本発明の請求項１記載のアルミニウム合金
製金型では、前記硬質アルマイト被膜の厚みを、この金
型の許容摩耗量以上としたことにより、露出する金型面
と硬質アルマイト被膜の凹凸の差及び該硬質アルマイト
被膜の色調の濃淡により硬質アルマイト被膜の摩耗の程
度を判定し、該硬質アルマイト被膜が消失した場合に許
容摩耗量に達したと判定する。In the aluminum alloy mold according to claim 1 of the present invention, the thickness of the hard alumite coating is set to be equal to or more than the allowable wear amount of the mold, so that the exposed mold surface and the rough surface of the hard alumite coating are uneven. And the degree of color tone of the hard alumite coating, the degree of wear of the hard alumite coating is judged, and when the hard alumite coating disappears, it is judged that the allowable wear amount has been reached.
【００１０】また、請求項２記載のアルミニウム合金製
金型では、前記硬質アルマイト被膜の厚みと酸化層の厚
みとの和を、この金型の許容摩耗量以上としたことによ
り、露出する金型面と硬質アルマイト被膜の凹凸の差及
び該硬質アルマイト被膜の色調の濃淡により硬質アルマ
イト被膜の摩耗の程度を判定し、さらに摩耗が進んで酸
化層が消失した場合に許容摩耗量に達したと判定する。According to the second aspect of the present invention, there is provided an aluminum alloy mold which is exposed when the sum of the thickness of the hard alumite coating and the thickness of the oxide layer is equal to or more than the allowable wear amount of the mold. Determine the degree of wear of the hard alumite coating by the difference in the unevenness of the surface and the hard alumite coating and the shade of the color of the hard alumite coating, and determine that the allowable wear amount has been reached when the wear progresses and the oxide layer disappears. To do.
【００１１】[0011]
【実施例】以下、本発明のアルミニウム合金製金型の各
実施例について、図面に基づき説明する。 （実施例１）図１は本発明の実施例１のアルミニウム合
金製金型の断面図である。この金型１は、アルミニウム
合金からなる金型本体２の少なくとも被成形物に接する
金型面２ａに、一部に開口部３ａが形成された硬質アル
マイト被膜３が形成され、該アルマイト被膜３の下方の
前記金型本体２内に該金型面２ａに沿う酸化層４が形成
され、硬質アルマイト被膜３の厚みはｔA、酸化層４の
厚みはｔBとされている。この金型１の許容摩耗量δは
３０μｍであり、硬質アルマイト被膜３の厚みｔAに等
しい（δ＝ｔA＝３０μｍ）。Embodiments of the aluminum alloy mold of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a sectional view of an aluminum alloy mold of Embodiment 1 of the present invention. In this mold 1, a hard alumite coating 3 having an opening 3a in a part thereof is formed on at least a mold surface 2a of a mold body 2 made of an aluminum alloy, which is in contact with an object to be molded. An oxide layer 4 is formed in the lower mold body 2 along the mold surface 2a. The hard alumite coating 3 has a thickness tA and the oxide layer 4 has a thickness tB. The allowable wear amount δ of the mold 1 is 30 μm, which is equal to the thickness tA of the hard alumite coating 3 (δ = tA = 30 μm).
【００１２】次に、この金型１の許容摩耗量δと、硬質
アルマイト被膜３の厚みｔA及び酸化層４の厚みｔBとの
関係について説明する。例えば、硬質アルマイト被膜３
の厚みｔAを３０μｍ、酸化層４の厚みｔBを２０μｍと
すると、まず、黄白色の硬質アルマイト被膜３が摩耗し
厚みが減少するので、この凹凸の差が徐々に狭まる。さ
らに摩耗して、硬質アルマイト被膜３の厚みｔAと酸化
層４の厚みｔBとの和が約２０μｍ程度より小さくなる
と（厚みｔAが１０μｍ以下）下地の金型本体２の影響
が現われ、硬質アルマイト被膜３は徐々に濃い黄白色か
ら淡い黄白色へと変化する。さらに摩耗して硬質アルマ
イト被膜３が消失すると凹凸の差が無くなる。Next, the relationship between the allowable wear amount δ of the mold 1 and the thickness tA of the hard alumite coating 3 and the thickness tB of the oxide layer 4 will be described. For example, hard alumite coating 3
If the thickness tA is 30 μm and the thickness tB of the oxide layer 4 is 20 μm, the yellow-white hard alumite coating 3 is first worn and the thickness is reduced, so that the difference between the irregularities is gradually narrowed. When it further wears and the sum of the thickness tA of the hard alumite coating 3 and the thickness tB of the oxide layer 4 becomes smaller than about 20 μm (thickness tA is 10 μm or less), the influence of the underlying mold body 2 appears, and the hard alumite coating 3 gradually changes from dark yellowish white to pale yellowish white. Further, when the hard alumite coating 3 disappears due to abrasion, the difference in unevenness disappears.
【００１３】この金型１では、露出する金型面２ａと硬
質アルマイト被膜３の凹凸の差及び硬質アルマイト被膜
３の色調の濃淡により硬質アルマイト被膜３の摩耗の程
度を判定し、該硬質アルマイト被膜３が消失した場合に
許容摩耗量δに達したと判定する。In this mold 1, the degree of wear of the hard alumite coating 3 is judged by the difference in the unevenness between the exposed mold surface 2a and the hard alumite coating 3 and the shade of the color of the hard alumite coating 3, and the hard alumite coating 3 is judged. When 3 has disappeared, it is determined that the allowable wear amount δ has been reached.
【００１４】以上説明した様に、この金型１によれば、
アルミニウム合金からなる金型本体２の少なくとも被成
形物に接する金型面２ａに、一部に開口部３ａが形成さ
れた硬質アルマイト被膜３が形成され、該アルマイト被
膜３の下方の前記金型本体２内に該金型面２ａに沿う酸
化層４が形成され、この金型１の許容摩耗量δは３０μ
ｍで硬質アルマイト被膜３の厚みｔAに等しいとしたの
で、露出する金型面２ａと硬質アルマイト被膜３の凹凸
の差及び該硬質アルマイト被膜３の色調の濃淡により硬
質アルマイト被膜３の摩耗の程度を判定することがで
き、該硬質アルマイト被膜３が消失した場合に許容摩耗
量に達したと判定することができる。以上により、目視
により容易に金型１の摩耗の程度を判定することができ
る。As described above, according to the mold 1,
A hard alumite coating 3 having an opening 3a in a part thereof is formed on at least a mold surface 2a of a mold body 2 made of an aluminum alloy, which is in contact with an object to be molded, and the mold body below the alumite coating 3 is formed. An oxide layer 4 is formed in the mold 2 along the mold surface 2a, and the allowable wear amount δ of the mold 1 is 30 μm.
Since the thickness is equal to the thickness tA of the hard alumite coating 3 in m, the degree of wear of the hard alumite coating 3 depends on the difference in the unevenness between the exposed mold surface 2a and the hard alumite coating 3 and the shade of the color tone of the hard alumite coating 3. It can be determined, and when the hard alumite coating 3 disappears, it can be determined that the allowable wear amount has been reached. As described above, the degree of wear of the mold 1 can be easily determined visually.
【００１５】（実施例２）図２は本発明の実施例２のア
ルミニウム合金製金型の断面図である。この金型１１の
構成要素は、上記実施例１の金型１と同様であり、硬質
アルマイト被膜３の厚みｔAと酸化層４の厚みｔBが異な
る。この金型１１の許容摩耗量δは３０μｍであり、硬
質アルマイト被膜３の厚みｔAと酸化層４の厚みｔBとの
和に等しい（δ＝ｔA＋ｔB＝３０μｍ）。(Embodiment 2) FIG. 2 is a sectional view of an aluminum alloy mold of Embodiment 2 of the present invention. The constituent elements of this mold 11 are the same as those of the mold 1 of Example 1 described above, but the thickness tA of the hard alumite coating 3 and the thickness tB of the oxide layer 4 are different. The allowable wear amount δ of the mold 11 is 30 μm, which is equal to the sum of the thickness tA of the hard alumite coating 3 and the thickness tB of the oxide layer 4 (δ = tA + tB = 30 μm).
【００１６】次に、この金型１１の許容摩耗量δと、硬
質アルマイト被膜３の厚みｔA及び酸化層４の厚みｔBと
の関係について説明する。例えば、硬質アルマイト被膜
３の厚みｔAを１８μｍ、酸化層４の厚みｔBを１２μｍ
とすると、これらの和は３０μｍとなる。この金型で
は、まず、黄白色の硬質アルマイト被膜３が摩耗し厚み
が減少するので、この凹凸の差が徐々に狭まる。さらに
摩耗して、硬質アルマイト被膜３の厚みｔAと酸化層４
の厚みｔBとの和が約２０μｍ程度より小さくなると
（厚みｔAが８μｍ以下）下地の金型本体２の影響が現
われ、硬質アルマイト被膜３は徐々に濃い黄白色から淡
い黄白色へと変化する。この硬質アルマイト被膜３が消
失すると凹凸の差が無くなる。さらに金型面２ａと酸化
層４双方の摩耗が同時に進行し、酸化層４が消失した場
合において金型本体２のみとなる。Next, the relationship between the allowable wear amount δ of the mold 11 and the thickness tA of the hard alumite coating 3 and the thickness tB of the oxide layer 4 will be described. For example, the thickness tA of the hard alumite coating 3 is 18 μm and the thickness tB of the oxide layer 4 is 12 μm.
Then, the sum of these becomes 30 μm. In this mold, first, the yellow-white hard alumite coating 3 is worn and its thickness is reduced, so that the difference between the irregularities is gradually narrowed. Further abrasion, the thickness tA of the hard alumite coating 3 and the oxide layer 4
When the sum of the thickness and the thickness tB is less than about 20 μm (thickness tA is 8 μm or less), the effect of the underlying mold body 2 appears, and the hard alumite coating 3 gradually changes from dark yellow white to pale yellow white. When the hard alumite coating 3 disappears, there is no difference in unevenness. Further, when the mold surface 2a and the oxide layer 4 both wear at the same time and the oxide layer 4 disappears, only the mold body 2 is left.
【００１７】この金型１１では、露出する金型面２ａと
硬質アルマイト被膜３の凹凸の差及び色調の濃淡により
硬質アルマイト被膜３の摩耗の程度を判定し、酸化層４
が消失した場合に許容摩耗量δに達したと判定する。In this mold 11, the degree of wear of the hard alumite coating 3 is determined by the difference in the unevenness between the exposed mold surface 2a and the hard alumite coating 3 and the tone of the color, and the oxide layer 4 is then judged.
It is determined that the allowable wear amount δ has been reached when is disappeared.
【００１８】以上説明した様に、この金型１１によれ
ば、アルミニウム合金からなる金型本体２の少なくとも
被成形物に接する金型面２ａに、一部に開口部３ａが形
成された硬質アルマイト被膜３が形成され、該アルマイ
ト被膜３の下方の前記金型本体２内に該金型面２ａに沿
う酸化層４が形成され、この金型１１の許容摩耗量δは
３０μｍで硬質アルマイト被膜３の厚みｔAと酸化層４
の厚みｔBとの和に等しいとしたので、露出する金型面
２ａと硬質アルマイト被膜３の凹凸の差及び該硬質アル
マイト被膜３の色調の濃淡により硬質アルマイト被膜３
の摩耗の程度を判定することができ、酸化層４が消失し
た場合に許容摩耗量に達したと判定することができる。
以上により、目視により容易に金型１１の摩耗の程度を
判定することができる。As described above, according to the mold 11, the hard alumite in which the opening 3a is partially formed on the mold surface 2a of the mold body 2 made of an aluminum alloy, which is in contact with at least the object to be molded. A coating 3 is formed, and an oxide layer 4 is formed along the mold surface 2a in the mold body 2 below the alumite coating 3. The allowable wear amount δ of the mold 11 is 30 μm and the hard alumite coating 3 is formed. Thickness tA and oxide layer 4
Is equal to the sum of the thickness tB of the hard alumite coating 3 and the unevenness of the exposed mold surface 2a and the hard alumite coating 3 and the color tone of the hard alumite coating 3
It is possible to determine the degree of wear of the above, and it is possible to determine that the allowable wear amount has been reached when the oxide layer 4 disappears.
As described above, the degree of wear of the mold 11 can be easily determined visually.
【００１９】[0019]
【発明の効果】以上説明した様に、本発明の請求項１記
載のアルミニウム合金製金型によれば、アルミニウム合
金からなる金型本体の少なくとも被成形物に接する金型
面に一部が開口された硬質アルマイト被膜が形成され、
該アルマイト被膜の下方の前記金型本体内に該金型面に
沿う酸化層が形成され、前記硬質アルマイト被膜の厚み
を、この金型の許容摩耗量以上としたので、露出する金
型面と硬質アルマイト被膜の凹凸の差及び該硬質アルマ
イト被膜の色調の濃淡により硬質アルマイト被膜の摩耗
の程度を判定することができ、該硬質アルマイト被膜が
消失した場合に許容摩耗量に達したと判定することがで
きる。As described above, according to the aluminum alloy mold of the first aspect of the present invention, at least a part of the mold body of the aluminum alloy, which is in contact with the object to be molded, has an opening. Hard alumite coating is formed,
An oxide layer along the mold surface is formed in the mold body below the alumite coating, and the thickness of the hard alumite coating is equal to or greater than the allowable wear amount of the mold, so that the exposed mold surface It is possible to determine the degree of wear of the hard alumite coating by the difference in the unevenness of the hard alumite coating and the shade of the color of the hard alumite coating, and determine that the allowable wear amount has been reached when the hard alumite coating disappears. You can
【００２０】また、請求項２記載のアルミニウム合金製
金型によれば、アルミニウム合金からなる金型本体の少
なくとも被成形物に接する金型面に一部が開口された硬
質アルマイト被膜が形成され、該アルマイト被膜の下方
の前記金型本体内に該金型面に沿う酸化層が形成され、
前記硬質アルマイト被膜の厚みと酸化層の厚みとの和
を、この金型の許容摩耗量以上としたので、露出する金
型面と硬質アルマイト被膜の凹凸の差及び該硬質アルマ
イト被膜の色調の濃淡により硬質アルマイト被膜の摩耗
の程度を判定することができ、酸化層が消失した場合に
許容摩耗量に達したと判定することができる。以上によ
り、目視により容易に摩耗の程度を判定することができ
るアルミニウム合金製金型を提供することができる。Further, according to the aluminum alloy mold of the second aspect, a hard alumite coating having a part opened is formed on at least the mold surface of the mold body of the aluminum alloy which is in contact with the object to be molded, An oxide layer is formed along the mold surface in the mold body below the alumite coating,
Since the sum of the thickness of the hard alumite coating and the thickness of the oxide layer is equal to or more than the allowable wear amount of this mold, the difference in the unevenness between the exposed mold surface and the hard alumite coating and the shade of the color tone of the hard alumite coating. The degree of wear of the hard alumite coating can be determined by the method, and when the oxide layer disappears, it can be determined that the allowable wear amount has been reached. As described above, it is possible to provide a mold made of an aluminum alloy, the degree of wear of which can be easily determined visually.
【図１】本発明の実施例１のアルミニウム合金製金型を
示す断面図である。FIG. 1 is a cross-sectional view showing an aluminum alloy mold of Example 1 of the present invention.
【図２】本発明の実施例２のアルミニウム合金製金型を
示す断面図である。FIG. 2 is a sectional view showing an aluminum alloy mold of Example 2 of the present invention.
１，１１ アルミニウム合金製金型 ２ 金型本体 ２ａ 金型面 ３ アルマイト被膜 ３ａ 開口部 ４ 酸化層 ｔA 硬質アルマイト被膜の厚み ｔB 酸化層の厚み δ 許容摩耗量 1,11 Aluminum alloy mold 2 Mold body 2a Mold surface 3 Alumite coating 3a Opening 4 Oxide layer tA Hard alumite coating thickness tB Oxide layer thickness δ Allowable wear amount
Claims (2)
なくとも被成形物に接する金型面に一部が開口された硬
質アルマイト被膜が形成され、該アルマイト被膜の下方
の前記金型本体内に該金型面に沿う酸化層が形成され、 前記硬質アルマイト被膜の厚みを、この金型の許容摩耗
量以上としたことを特徴とするアルミニウム合金製金
型。1. A hard alumite coating having an opening at least on a mold surface in contact with an object to be molded of a mold main body made of an aluminum alloy is formed, and the mold is provided in the mold main body below the alumite coating. An aluminum alloy mold, wherein an oxide layer is formed along the mold surface, and the thickness of the hard alumite coating is set to be equal to or more than the allowable wear amount of this mold.
なくとも被成形物に接する金型面に一部が開口された硬
質アルマイト被膜が形成され、該アルマイト被膜の下方
の前記金型本体内に該金型面に沿う酸化層が形成され、 前記硬質アルマイト被膜の厚みと酸化層の厚みとの和
を、この金型の許容摩耗量以上としたことを特徴とする
アルミニウム合金製金型。2. A hard alumite coating partly opened on a mold surface of the mold main body made of an aluminum alloy, which is in contact with at least an object to be molded, and the mold main body below the alumite coating in the mold main body. An aluminum alloy mold, wherein an oxide layer is formed along the mold surface, and the sum of the thickness of the hard alumite coating and the thickness of the oxide layer is equal to or more than the allowable wear amount of this mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31714993A JPH07164448A (en) | 1993-12-16 | 1993-12-16 | Aluminum alloy mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31714993A JPH07164448A (en) | 1993-12-16 | 1993-12-16 | Aluminum alloy mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07164448A true JPH07164448A (en) | 1995-06-27 |
Family
ID=18084995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31714993A Withdrawn JPH07164448A (en) | 1993-12-16 | 1993-12-16 | Aluminum alloy mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07164448A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416072B1 (en) * | 1998-08-10 | 2002-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body frame for motorcycle and it fabrication method |
| US6859532B2 (en) | 1995-08-11 | 2005-02-22 | Fujitsu Limited | Adapter for portable telephone usable as mobile telephone in vehicle |
| JP2020012278A (en) * | 2018-07-17 | 2020-01-23 | ナブテスコ株式会社 | Door device and door device contact member |
-
1993
- 1993-12-16 JP JP31714993A patent/JPH07164448A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6859532B2 (en) | 1995-08-11 | 2005-02-22 | Fujitsu Limited | Adapter for portable telephone usable as mobile telephone in vehicle |
| US7206407B2 (en) | 1995-08-11 | 2007-04-17 | Fujitsu Limited | Adapter for portable telephone usable as mobile telephone in vehicle |
| US6416072B1 (en) * | 1998-08-10 | 2002-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body frame for motorcycle and it fabrication method |
| US6796030B2 (en) | 1998-08-10 | 2004-09-28 | Honda Giken Kogyo Kabushiki Kaisha | Method of fabricating a vehicle body frame for a motorcycle |
| JP2020012278A (en) * | 2018-07-17 | 2020-01-23 | ナブテスコ株式会社 | Door device and door device contact member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010306 |