JPH041076B2 - - Google Patents

Info

Publication number
JPH041076B2
JPH041076B2 JP60045560A JP4556085A JPH041076B2 JP H041076 B2 JPH041076 B2 JP H041076B2 JP 60045560 A JP60045560 A JP 60045560A JP 4556085 A JP4556085 A JP 4556085A JP H041076 B2 JPH041076 B2 JP H041076B2
Authority
JP
Japan
Prior art keywords
coating layer
tie bar
stainless steel
base material
bar base
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.)
Expired - Lifetime
Application number
JP60045560A
Other languages
Japanese (ja)
Other versions
JPS61204382A (en
Inventor
Shuji Kobayashi
Akio Futaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissei Plastic Industrial Co Ltd
Original Assignee
Nissei Plastic Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissei Plastic Industrial Co Ltd filed Critical Nissei Plastic Industrial Co Ltd
Priority to JP4556085A priority Critical patent/JPS61204382A/en
Publication of JPS61204382A publication Critical patent/JPS61204382A/en
Publication of JPH041076B2 publication Critical patent/JPH041076B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1761Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は圧縮成形、射出成形或はダイキヤス
トなどの成形機の型開閉装置に用いられているタ
イバーに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tie bar used in a mold opening/closing device of a molding machine for compression molding, injection molding, die casting, or the like.

[従来の技術] 一般に成形機の型開閉装置に用いられているタ
イバーは、構造用合金鋼や工具鋼などの特殊鋼を
用い、表面硬度を増すために、熱処理を施したの
ち、表面に工業用クロム鍍金を施している。
[Prior art] Tie bars that are generally used in mold opening and closing devices of molding machines are made of special steel such as structural alloy steel or tool steel, and are heat treated to increase surface hardness. It is chrome plated.

[発明が解決しようとする問題点] タイバーには使用する機械によりさまざまなサ
イズのものがあり、小さいもので直径5cm、長さ
1m位、大きいものになると直径50cm、長さ10m
に達するものがある。このようなタイバーの表面
硬度を増すために、熱処理や鍍金を施すのは技術
的、作業的にきわめて困難であり、設備的にも大
規模なものが要求され、それによつて得られるタ
イバーは極めて高価なものとなる。
[Problem to be solved by the invention] Tie bars come in various sizes depending on the machine used.The small ones are about 5 cm in diameter and 1 m in length, and the larger ones are 50 cm in diameter and 10 m in length.
There are things that reach . Applying heat treatment or plating to increase the surface hardness of such tie bars is extremely technically and operationally difficult, and requires large-scale equipment, and the tie bars obtained by this process are extremely difficult to apply. It becomes expensive.

[問題点を解決する為の手段] この発明は上記事情から考えられたものであつ
て、その目的とするところは、製品表面の硬度を
増すための高周波焼入、炎焼入、浸炭、窒化等の
物理的、化学的熱処理や工業用クロム鍍金等を施
すことなく、耐摩耗性、防錆性などに優れたタイ
バーを提供することにある。
[Means for Solving the Problems] This invention was conceived in view of the above circumstances, and its purpose is to improve the hardness of the product surface by induction hardening, flame hardening, carburizing, and nitriding. The object of the present invention is to provide a tie bar that has excellent wear resistance and rust prevention properties without undergoing any physical or chemical heat treatment or industrial chromium plating.

上記目的によるこの発明は、丸鋼棒からなるタ
イバー母材のガイド部を、他の部分よりも小径に
形成して所要の凹所に形成し、その凹所を含めて
タイバー母材の表面をステンレス被膜層により被
覆するとともに、凹所にセラミツクを溶射して、
ガイド部をステンレス被膜層とその上のセラミツ
ク被膜層とから構成してなり、セラミツクとして
は、酸化アルミニウム、酸化クロム、酸化チタ
ン、酸化ジルコニウム等の金属酸化物を主成分と
するものが用いられる。
According to the above-mentioned object, the guide portion of the tie bar base material made of a round steel bar is formed to have a smaller diameter than other parts and is formed in a required recess, and the surface of the tie bar base material including the recess is formed. In addition to coating with a stainless steel coating layer, ceramic is sprayed into the recesses,
The guide portion is composed of a stainless steel coating layer and a ceramic coating layer thereon, and the ceramic used is one whose main component is a metal oxide such as aluminum oxide, chromium oxide, titanium oxide, or zirconium oxide.

[作用] 上記タイバーでは、型開閉装置にて生ずる荷重
を靭性に優れたタイバー母材が受け、タイバー上
を移動する可動板による摩耗には耐摩耗性に優れ
たセラミツク被膜層で対処し、錆に対しては耐食
性に優れたステンレス被膜層とセラミツク被膜層
とが対処する。
[Function] In the above tie bar, the tie bar base material, which has excellent toughness, takes the load generated by the mold opening/closing device, and the wear caused by the movable plate that moves on the tie bar is counteracted by the ceramic coating layer, which has excellent wear resistance, and prevents rust. The stainless steel coating layer and the ceramic coating layer have excellent corrosion resistance.

更にこの発明を図示の例により詳細に説明す
る。
Further, the present invention will be explained in detail using illustrated examples.

[実施例] タイバー母材1は、調質された構造用合金鋼に
よる丸棒鋼を素材とし、両端に連結用のネジ部
2,2を有する。また中間のガイド部は、他の部
分よりも小径に形成されて、所要の凹所となつて
いる。
[Example] The tie bar base material 1 is made of a round bar steel made of tempered structural alloy steel, and has threaded portions 2, 2 for connection at both ends. Further, the intermediate guide portion is formed to have a smaller diameter than the other portions, and has a required recess.

このようなタイバー母材1の表面には、上記凹
所を含めてステンレス被膜層3が施してあり、ま
た凹所のステンレス被膜層3の上にはセラミツク
被膜層4が施されている。したがつて、上記凹所
は両被覆層の厚さに等しい深さにて設けられてい
る。
A stainless steel coating layer 3 is applied to the surface of the tie bar base material 1 including the recesses, and a ceramic coating layer 4 is applied to the stainless steel coating layer 3 in the recesses. The recess is therefore provided at a depth equal to the thickness of both covering layers.

上記被覆層及び被膜層の厚さは、タイバーの大
きさや使用状況に応じて適宜選択されるが、形成
技術やタイバー母材の強度、剥離、更には経済性
などを考慮して、そこに形成される各層の厚み
は、ステンレス被膜層3にあつては片肉厚0.1mm
以上0.4mm未満、セラミツク被膜層4は片肉厚0.1
mm以上0.5mm未満の範囲が好適である。
The thickness of the above-mentioned coating layer and coating layer is selected appropriately depending on the size of the tie bar and usage conditions, but the thickness of the coating layer and the coating layer are selected appropriately depending on the size of the tie bar and usage conditions. The thickness of each layer is 0.1mm for stainless steel coating layer 3.
0.4mm or more, ceramic coating layer 4 has one side thickness of 0.1mm
A range of not less than mm and less than 0.5 mm is suitable.

またステンレス被膜層3は、タイバー母材1の
両端面、ネジ部、ネジ首部及び固定盤、可動盤と
の当接端面を除くすべての外周表面にプラズマ溶
射にて施され、セラミツク被膜層4は、ガイド部
に当る図示の可動盤のストローク範囲Aに設けら
れ、ステンレス被膜層3の外表面にプラズマ溶射
にて施されている。
In addition, the stainless steel coating layer 3 is applied by plasma spraying to all outer peripheral surfaces of the tie bar base material 1 except for both end surfaces, threaded portions, screw necks, and end surfaces in contact with the fixed platen and the movable platen, and the ceramic coating layer 4 is , is provided in the stroke range A of the illustrated movable plate which corresponds to the guide portion, and is applied to the outer surface of the stainless steel coating layer 3 by plasma spraying.

ステンレス被膜層3及びセラミツク被膜層4は
溶射直後は規定寸法に仕上代を加味した寸法に仕
上げられており溶射後研削仕上げにて最終寸法に
仕上げられる。
Immediately after thermal spraying, the stainless steel coating layer 3 and the ceramic coating layer 4 are finished to the prescribed dimensions plus a finishing allowance, and are finished to the final dimensions by grinding after thermal spraying.

第2図はタイバーを組込んだ射出成形機の型開
閉装置を示すもので、タイバー11,11は機台
12上に設けた一対の固定盤13,13にわたり
取付けられ、そのタイバー11,11に型締シリ
ンダ14のラム15と連結した可動盤16が挿通
してある。
Fig. 2 shows a mold opening/closing device of an injection molding machine incorporating tie bars. A movable platen 16 connected to the ram 15 of the mold clamping cylinder 14 is inserted therethrough.

このような構造では、型締時に生ずる強大な力
を上記タイバー母材1が受けることになり、また
可動盤16の往復摺動による摩耗には上記セラミ
ツク被膜層4が対処し、防錆はセラミツク被膜層
4とステンレス被膜層3とが対処する。
In such a structure, the tie bar base material 1 is subjected to the enormous force generated during mold clamping, and the ceramic coating layer 4 counteracts the wear caused by the reciprocating sliding of the movable platen 16, and the ceramic coating layer 4 prevents rust. Coating layer 4 and stainless steel coating layer 3 take care of this.

なお、各膜層の形成はプラズマ溶射に依らずガ
ス溶射などであつてもよい。
Note that the formation of each film layer does not depend on plasma spraying, but may also be performed by gas spraying or the like.

[発明の効果] この発明は上述のように、タイバー母材のガイ
ド部をステンレス被膜層とその上のセラミツク被
膜層とから構成してなることから、熱処理や鍍金
などによつて表面硬度を増す場合よりも、タイバ
ー母材の表面処理が容易で、大規模な設備をも必
要とせず、製造コストの低減を図ることができ
る。
[Effects of the Invention] As described above, in this invention, since the guide portion of the tie bar base material is composed of a stainless steel coating layer and a ceramic coating layer thereon, the surface hardness can be increased by heat treatment, plating, etc. The surface treatment of the tie bar base material is easier than in the case of conventional methods, and large-scale equipment is not required, making it possible to reduce manufacturing costs.

またタイバー母材が長尺、大径になるほど技術
やコストの面にて難点が生ずる熱処理や鍍金と異
なつて、タイバー母材の大きさに左右されず、被
膜層も厚肉に施すことができ、対摩耗性及び耐食
性に優れたタイバーを容易にそして安価に得るこ
とができる。
Also, unlike heat treatment and plating, which become more difficult in terms of technology and cost as the tie bar base material becomes longer and larger in diameter, it is possible to apply a thick coating layer without being affected by the size of the tie bar base material. , a tie bar with excellent wear resistance and corrosion resistance can be obtained easily and inexpensively.

更にまたタイバー母材とセラミツク被膜層との
間に介在したステンレス被膜層によつて、タイバ
ー母材金属とセラミツク被膜層との接着力が高め
られるため、セラミツク被膜層が剥離し難く、長
期間にわたり耐摩耗性や耐食性を保つなどの特長
を有する。
Furthermore, the stainless steel coating layer interposed between the tie bar base metal and the ceramic coating layer increases the adhesion between the tie bar base metal and the ceramic coating layer, making it difficult for the ceramic coating layer to peel off and lasting for a long time. It has features such as maintaining wear resistance and corrosion resistance.

【図面の簡単な説明】[Brief explanation of drawings]

図面はこの発明に係る型開閉装置用タイバーを
例示するもので、第1図はタイバーの要部縦断正
面図、第2図は型開閉装置の略示正面図である。 1……タイバー母材、2……ネジ部、3……ス
テンレス被膜層、4……セラミツク被膜層、11
……タイバー、13……固定盤、16……可動
盤。
The drawings illustrate a tie bar for a mold opening/closing device according to the present invention, and FIG. 1 is a vertical sectional front view of the main part of the tie bar, and FIG. 2 is a schematic front view of the mold opening/closing device. DESCRIPTION OF SYMBOLS 1... Tie bar base material, 2... Threaded part, 3... Stainless steel coating layer, 4... Ceramic coating layer, 11
...Tie bar, 13...Fixed plate, 16...Movable plate.

Claims (1)

【特許請求の範囲】[Claims] 1 丸鋼棒からなるタイバー母材のガイド部を、
他の部分よりも小径に形成して所要の凹所に形成
し、その凹所を含めてタイバー母材の表面をステ
ンレス被膜層により被覆するとともに、凹所にセ
ラミツクを溶射して、ガイド部をステンレス被膜
層とその上のセラミツク被膜層とから構成してな
ることを特徴とする型開閉装置用タイバー。
1. The guide part of the tie bar base material made of round steel bar is
The guide part is formed to have a smaller diameter than other parts, and is formed in the required recess, and the surface of the tie bar base material including the recess is coated with a stainless steel coating layer, and ceramic is thermally sprayed in the recess. A tie bar for a mold opening/closing device comprising a stainless steel coating layer and a ceramic coating layer thereon.
JP4556085A 1985-03-07 1985-03-07 Tie-bar for mold opening and shutting device Granted JPS61204382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4556085A JPS61204382A (en) 1985-03-07 1985-03-07 Tie-bar for mold opening and shutting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4556085A JPS61204382A (en) 1985-03-07 1985-03-07 Tie-bar for mold opening and shutting device

Publications (2)

Publication Number Publication Date
JPS61204382A JPS61204382A (en) 1986-09-10
JPH041076B2 true JPH041076B2 (en) 1992-01-09

Family

ID=12722740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4556085A Granted JPS61204382A (en) 1985-03-07 1985-03-07 Tie-bar for mold opening and shutting device

Country Status (1)

Country Link
JP (1) JPS61204382A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI129386B (en) * 2016-02-12 2022-01-31 Wd Racing Oy Vulcanisation apparatus for vehicle tyres

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887273A (en) * 1981-11-18 1983-05-25 Hitachi Ltd Parts having ceramic coated layer and their production
JPS59153506A (en) * 1983-02-19 1984-09-01 Kawasaki Steel Corp Manufacture of guide shoe used for manufacturing seamless pipe excellent in wear-and-seizure-resistant properties

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887273A (en) * 1981-11-18 1983-05-25 Hitachi Ltd Parts having ceramic coated layer and their production
JPS59153506A (en) * 1983-02-19 1984-09-01 Kawasaki Steel Corp Manufacture of guide shoe used for manufacturing seamless pipe excellent in wear-and-seizure-resistant properties

Also Published As

Publication number Publication date
JPS61204382A (en) 1986-09-10

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