JPH02111634A - Plunger for glass formation - Google Patents
Plunger for glass formationInfo
- Publication number
- JPH02111634A JPH02111634A JP26259088A JP26259088A JPH02111634A JP H02111634 A JPH02111634 A JP H02111634A JP 26259088 A JP26259088 A JP 26259088A JP 26259088 A JP26259088 A JP 26259088A JP H02111634 A JPH02111634 A JP H02111634A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- alloy
- glass
- self
- cr3c2
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title abstract description 26
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 238000007496 glass forming Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 229910003470 tongbaite Inorganic materials 0.000 abstract description 4
- 229910000531 Co alloy Inorganic materials 0.000 abstract 3
- 239000002923 metal particle Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 229910018487 Ni—Cr Inorganic materials 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910001347 Stellite Inorganic materials 0.000 description 3
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004554 molding of glass Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
- C03B9/13—Blowing glass; Production of hollow glass articles in gob feeder machines
- C03B9/193—Blowing glass; Production of hollow glass articles in gob feeder machines in "press-and-blow" machines
- C03B9/1932—Details of such machines, e.g. plungers or plunger mechanisms for the press-and-blow machine, cooling of plungers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B9/00—Blowing glass; Production of hollow glass articles
- C03B9/30—Details of blowing glass; Use of materials for the moulds
- C03B9/48—Use of materials for the moulds
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はガラス壜をプレスブロー成形する際に用いられ
るガラス成形用プランジャーの改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a glass molding plunger used in press blow molding a glass bottle.
（従来の技術）
ガラス壜のプレスプロー成形用のプランジャーは高温の
溶融ガラスと直接接触してパリソンを成形する金型であ
るため、耐熱鋼製の母材の表面にＣｏ系の自溶性合金又
はＮ ｉ −Ｃｒ系の自溶性合金を０．５ｍｍ程度の厚
さに肉盛りして耐熱性や耐摩耗性を高める工夫がなされ
ている。（例えば、特開昭５４−１４６８１８号公報）
ところがＮｉ−Ｃｒ系の自溶性合金は耐酸化性が低いた
めにプランジャーの表面が酸化され、表面から剥離した
酸化スケールが成形されたガラス壜の内表面に付着し、
ガラス壜の内表面に微細な傷を付けてガラス壜の衝す強
度を低下させる原因となっていた。またＣｏ系の自溶性
合金はＮｉ −Ｃｒ系のものに比較して耐酸化性は優れ
ている反面、高温における強度が低いために成形中にガ
ラスによってプランジャーの表面が徐々に削り取られ、
削り取られた金属粉がガラス壜の内表面に付着して上記
したと同様にガラス壜の衝撃強度を低下させていた。(Prior art) A plunger for press-plow molding of glass bottles is a mold that forms a parison by directly contacting high-temperature molten glass. Alternatively, efforts have been made to increase heat resistance and abrasion resistance by building up Ni-Cr based self-fusing alloy to a thickness of about 0.5 mm. (For example, Japanese Patent Application Laid-Open No. 54-146818) However, because the Ni-Cr based self-fluxing alloy has low oxidation resistance, the surface of the plunger is oxidized, and the oxide scale peeled off from the surface of the molded glass bottle. adheres to the inner surface,
This caused fine scratches on the inner surface of the glass bottle, reducing the impact strength of the glass bottle. In addition, although Co-based self-fusing alloys have superior oxidation resistance compared to Ni-Cr-based alloys, their strength at high temperatures is low, so the surface of the plunger is gradually scraped off by glass during molding.
The scraped metal powder adhered to the inner surface of the glass bottle, reducing the impact strength of the glass bottle in the same manner as described above.
（発明が解決しようとする課題）
本発明はこのような従来の問題点を解決して、プランジ
ャーの表面から酸化スケールや金属粉が発生することを
防止し、これによって成形さ九たガラス壜の衝撃強度を
著しく向上させることができるガラス成形用プランジャ
ーを提供するためになされたものである。(Problems to be Solved by the Invention) The present invention solves these conventional problems, prevents oxide scale and metal powder from being generated from the surface of the plunger, and thereby improves the quality of molded glass bottles. This was made in order to provide a plunger for glass molding that can significantly improve the impact strength of the glass.
（課題を解決するための手段）
本発明は、Ｃｒ＊Ｃｚを１０〜９０（重量）％含有する
Ｃｏ系自溶性合金を、耐熱鋼製の母材の表面に肉盛りし
たことを特徴とするものである。(Means for Solving the Problems) The present invention is characterized in that a Co-based self-fluxing alloy containing 10 to 90% (by weight) of Cr*Cz is built up on the surface of a base material made of heat-resistant steel. It is something.
本発明において用いられるＣ ｒ ｉ Ｃｔは融点１８
９０°Ｃの耐熱性、耐酸化性、高温強度に優れた堅い薄
片状の物質であり、しかも従来からプランジャー表面の
肉盛りに使用されているＣｏ系自溶性合金に対する親和
性に優れている。Ｃｒ３Ｃ２は粉末の形でＣｏ系自溶性
合金の粉末に混入され、例えばＳＣＭ−２１のような耐
熱鋼製の母材の表面に肉盛りされる。Ｃｒ５Ｃｚはプラ
ンジャーの表面の耐熱性、高温強度を向上させるうえで
大きい効果を発渾するが、１０％未満では高温強度を向
上させる効果が不十分であり、また９０％を越えるとピ
ンホール等が増加してスムーズな表面が得られなくなる
ので１０〜９０％の範囲内とすることが必要である。C r i Ct used in the present invention has a melting point of 18
It is a hard, flaky material that has excellent heat resistance at 90°C, oxidation resistance, and high-temperature strength, and it also has excellent affinity for Co-based self-fluxing alloys, which have traditionally been used to build up the plunger surface. . Cr3C2 is mixed in powder form with a powder of a Co-based self-fluxing alloy, and is built up on the surface of a heat-resistant steel base material such as SCM-21. Cr5Cz has a great effect on improving the heat resistance and high-temperature strength of the plunger surface, but if it is less than 10%, the effect of improving high-temperature strength is insufficient, and if it exceeds 90%, pinholes etc. It is necessary to keep the amount within the range of 10 to 90% since this increases and makes it impossible to obtain a smooth surface.
またＣｏ系自溶性合金としては、ＣＯを３０％以上含有
するステライト６、ステライト２０などの各種の組成の
自溶性合金を用いることができる。このようなＣｏ系自
溶性合金とＣｒ５Ｃｔとの混合物は母材の表面にフレー
ム溶射、プラズマ溶射、ジェット溶射、爆発溶射等の溶
射法によって肉盛りされるが、このほかＨＩ Ｐ処理、
肉盛溶接等の方法で肉盛りしてもよい、肉盛り厚さは特
に限定されるものではないが、従来どおり０．５ｍｍｍ
前後とすれば十分である。Further, as the Co-based self-fusing alloy, self-fusing alloys having various compositions such as Stellite 6 and Stellite 20 containing 30% or more of CO can be used. Such a mixture of Co-based self-fluxing alloy and Cr5Ct is deposited on the surface of the base material by thermal spraying methods such as flame spraying, plasma spraying, jet spraying, and explosive spraying, but in addition to these, HIP treatment,
Overlaying may be done by a method such as overlay welding, and the overlay thickness is not particularly limited, but it is 0.5 mm as usual.
Before and after is enough.
（作用）
本発明においては以上に記したように耐熱性、耐酸化性
に優れたＣｏ系自溶性合金に硬度の大きいＣｒ：＋Ｃｚ
を１０〜９０％含有させたものを使用したので高温強度
を大幅に向上させることができ、高温のガラスによって
も酸化されたりプランジャーの表面が削られたりするこ
とがない。従って本発明のプランジャーを用いて成形さ
れたガラス壜は内表面が酸化スケールや金属粉によって
傷付けられることがなく、従来のプランジャーを用いて
成形されたガラス壜に比較して衝撃強度を２倍程度まで
向上させることが可能である。(Function) As described above, in the present invention, Cr:+Cz with high hardness is added to the Co-based self-fluxing alloy with excellent heat resistance and oxidation resistance.
Since a material containing 10 to 90% of is used, the high-temperature strength can be greatly improved, and the plunger surface will not be oxidized or scraped even by high-temperature glass. Therefore, the inner surface of the glass bottle molded using the plunger of the present invention is not damaged by oxide scale or metal powder, and the impact strength is 2 times higher than that of glass bottles molded using the conventional plunger. It is possible to improve the performance by about twice as much.
以下に本発明の効果を実施例のデータによって具体的に
示す。The effects of the present invention will be specifically illustrated below using data from examples.
（実施例）
実施例ｌ
Ｃｒ２６％（重１）、Ｗ５％、０１％、残部Ｃｏからな
るステライト６と呼ばれるＣｏ系自溶性合金わ）未８０
部と、ＣｒｚＣｚ扮未２０部とのｒｌＸ合吻をＳＣＭｌ
ｌ製の母材の表面にプラズマ溶射法により溶射し、厚さ
０．５ｍｍの肉盛り層を形成した。(Example) Example 1 Co-based self-fusing alloy called Stellite 6, consisting of 26% Cr (wt 1), 5% W, 01%, and the balance Co.
SCML
The material was thermally sprayed onto the surface of a base material made of L by a plasma spraying method to form a built-up layer with a thickness of 0.5 mm.
このプランジャーを用いて重堅１７０ｇｒ、内容盪３０
０ｃｃのガラス壜をブレスブロー成形した。成形された
ガラス壜中２０本をサンプリングし、その街↑を強度を
測定したところ、インチ−ポンドの単位でｌ最低１０．
２、最大１８．ｌ、平均１６．５の値が得られたこれは
従来のＮｉ−Ｃｒ系合金を溶射したプランジャーを用い
て成形されたガラス壜の衝撃強度が最低５，７、最大８
．７、平均７．７であったのに比較して、約２倍の値で
ある。Using this plunger, heavy hardness 170 gr, content 30
A 0cc glass bottle was breath blow molded. When we sampled 20 molded glass bottles and measured their strength, we found that the strength was at least 10.
2. Maximum 18. 1, an average value of 16.5 was obtained.This means that the impact strength of glass bottles formed using a plunger sprayed with a conventional Ni-Cr alloy is 5.7 at the lowest and 8 at the highest.
．． 7. This is about double the average value of 7.7.
またプランジャーを７００’Ｃの酸化雰囲気炉中で５時
間加熱し、その表面粗さの変化を測定したところ加熱前
が０．２μ、加熱後が０．４μ、硬度はＨｖ＝７８０で
あった。これに対して従来のＮｉ−Ｃｒ系自溶性合金を
用いたプランジャーとＣｒｚＣｚを含まないＣｏ系自溶
性合金を用いたプランジャーに対して同一条件のテスト
を行ったところ、次のとおりの結果となった。In addition, the plunger was heated in an oxidizing atmosphere furnace at 700'C for 5 hours, and the change in surface roughness was measured. It was 0.2μ before heating and 0.4μ after heating, and the hardness was Hv = 780. . On the other hand, when a plunger using a conventional Ni-Cr self-fusing alloy and a plunger using a Co-based self-fusing alloy that does not contain CrzCz were tested under the same conditions, the following results were obtained. It became.
実 施 例 加熱前０．２μ 加熱後０．４μ Ｉｌｖ
・７８ＯＮｉ −Ｃｒ 系
１．５μ １ｌｖ＝８２０Ｃｏ系
０．５ ａ Ｈｖ＝５００実施例２
Ｃｒ３３％、Ｗ１８％、Ｃ２，５％、残部ＣＯからなる
ステライ）２０と呼ばれるＣＯ系自冷性合金粉末７０部
にＣｒ５Ｃｚ粉末３０部を混入し、Ｓ Ｋ Ｄ −１１
５！の母材の表面にプラズマ溶射した。このプランジャ
ー杏用いて実施例１と同一条件でガラス壜のプレスプロ
ー成形を行ったところ、成形されたガラス壜の衝撃強度
は２０本中の最低が１２．１、最大が１７．８、平均が
１７．０であった。また実施例１と同様にプランジャー
の加熱テストを行ったところ、加熱前の表面粗さは０．
２μ、加熱後は０．４μであり、ＩＩｖ ＝８００であ
った。Example 0.2μ before heating 0.4μ after heating Ilv
・78ONi-Cr series
1.5μ 1lv=820Co system
0.5 a Hv=500 Example 2 30 parts of Cr5Cz powder was mixed into 70 parts of a CO-based self-cooling alloy powder called Stellai) 20 consisting of 33% Cr, 18% W, 2.5% C, and the balance CO. D-11
5! Plasma sprayed onto the surface of the base material. When press blow molding of glass bottles was performed using this plunger under the same conditions as in Example 1, the impact strength of the molded glass bottles was 12.1 for the lowest among 20 bottles, 17.8 for the highest, and 17.8 for the average. was 17.0. Further, when the plunger was subjected to a heating test in the same manner as in Example 1, the surface roughness before heating was 0.
2μ, 0.4μ after heating, and IIv =800.
（発明の効果）
本発明は以上に説明したとおり、Ｃｒ３Ｃ２をＣＯ系自
熔性合金に含有させることにより、耐酸化性を維持しつ
つＮｉ−Ｃｒ系のものと同様の硬慶を得ることに成功し
たものであって、ガラス成形中の酸化スケールの発生及
び削られた金属粉の発生を防止し、ガラス壜の衝撃強度
の向上に極めて大きい効果を発揮するものである。よっ
て本発明は従来の問題点を解決したガラス成形用プラン
ジャーとして、業界に寄与するところは極めて大きいも
のがある。(Effects of the Invention) As explained above, the present invention achieves the same hardness as Ni-Cr alloys while maintaining oxidation resistance by incorporating Cr3C2 into CO-based self-melting alloys. This was a success, and it is extremely effective in preventing the generation of oxide scale and scraped metal powder during glass molding, and improving the impact strength of glass bottles. Therefore, the present invention makes an extremely large contribution to the industry as a glass molding plunger that solves the conventional problems.
Claims (1)
自溶性合金を、耐熱鋼製の母材の表面に肉盛りしたこと
を特徴とするガラス成形用プランジャー。A plunger for glass forming, characterized in that a Co-based self-fusing alloy containing 10 to 90% (by weight) of Cr_3C_2 is built up on the surface of a base material made of heat-resistant steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26259088A JPH02111634A (en) | 1988-10-18 | 1988-10-18 | Plunger for glass formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26259088A JPH02111634A (en) | 1988-10-18 | 1988-10-18 | Plunger for glass formation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111634A true JPH02111634A (en) | 1990-04-24 |
| JPH05343B2 JPH05343B2 (en) | 1993-01-05 |
Family
ID=17377914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26259088A Granted JPH02111634A (en) | 1988-10-18 | 1988-10-18 | Plunger for glass formation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111634A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5120341A (en) * | 1990-02-20 | 1992-06-09 | Ishizuka Garasu Kabushiki Kaisha | Method for manufacturing a glass container having a large impact strength using permanent and non permanent coatings on the apparatus |
| JP2012532202A (en) * | 2009-06-30 | 2012-12-13 | ハンプレンコ プレシジョン エンジニアズ リミテッド | Coating composition |
-
1988
- 1988-10-18 JP JP26259088A patent/JPH02111634A/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| NEW GLASS TECHNOLOGY=1984 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5120341A (en) * | 1990-02-20 | 1992-06-09 | Ishizuka Garasu Kabushiki Kaisha | Method for manufacturing a glass container having a large impact strength using permanent and non permanent coatings on the apparatus |
| JP2012532202A (en) * | 2009-06-30 | 2012-12-13 | ハンプレンコ プレシジョン エンジニアズ リミテッド | Coating composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05343B2 (en) | 1993-01-05 |
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