JPS6142676Y2 - - Google Patents
Info
- Publication number
- JPS6142676Y2 JPS6142676Y2 JP5138882U JP5138882U JPS6142676Y2 JP S6142676 Y2 JPS6142676 Y2 JP S6142676Y2 JP 5138882 U JP5138882 U JP 5138882U JP 5138882 U JP5138882 U JP 5138882U JP S6142676 Y2 JPS6142676 Y2 JP S6142676Y2
- Authority
- JP
- Japan
- Prior art keywords
- ladle
- molten metal
- metal
- base
- ceramic
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000010953 base metal Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000005488 sandblasting Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
本考案はアルミニウム合金、マグネシウム合金
等の溶湯を給湯する為に使用されるラドル、ひし
やく等の器具に関するものである。
例えば金属溶湯用ラドルは、一般に第１図、第
２図に示す形状であり、材質は鉄又はSUS金属で
鋳造又はプレス成形により製造される。ラドル本
体１は器状で、上部に注ぎ口２及び、本体１に一
体に形成されたブラケツト３の先端に設けられた
支持部４を有している。従来このラドルを使用す
る際は、使用開始前に水ガラス、ジルコン、展着
剤等よりなる表面コーテイング剤を、ラドル内外
面にはけ塗り等によつてコーテイングし、ラドル
が溶損して孔が明き使用できなくなる迄使用して
いた。この場合、ラドルの耐用日数は通常７〜10
日間であつた。又別の使用法として、使用開始直
前及び毎週始めにはけ塗り等により上記コーテイ
ング剤をコーテイングして使用していた。この場
合のラドルの耐用日数は30〜40日間であつた。
このように従来頻繁にコーテイング作業を行な
つているのにもかかわらず、ラドルの耐用期間は
極めて短く、早期にラドルを交換しなければなら
なくなることから、特に全自動運転されているダ
イカストマシンにおいてはラドル交換の為にマシ
ン全体を停止させなければならず、生産性の重大
な低下につながるばかりでなく、ラドル交換やは
け塗り作業を頻繁に行なわなければならないこと
から作業能率が低下する不具合を生じていた。又
ラドルにコーテイング剤をはけ塗り等により人為
的にコーテイングするだけであつたため、衝撃や
温度変化等により簡単に剥離してしまい、剥離部
分よりラドルを形成する鉄が金属溶湯中に溶け込
んで、その金属の材質低下を引き起こし、重大な
材質トラブルとなる危険もあつた。
本考案は上記従来の問題点に鑑み、金属溶湯用
器具の溶損を大幅に低減し、耐用期間を延長して
コストダウンを実現すると共に、器具を形成する
金属が溶湯に溶け込んで材質を悪化させることの
ない金属溶湯用器具を提供することを目的として
いる。
（実施例）
次に一実施例として、鋳鉄又はプレス（SUS、
鉄）製の金属溶湯用ラドルに本考案を採用した場
合について説明する。まずサンドブラスト工程に
より、川砂又は比較的大型の研摩材を圧縮空気に
よつて特にラドルの本体１内面及び注ぎ口２に吹
き付け、ラドルの母材の残留応力を除去し、ピー
ニング効果により応力の集中を緩和し、疲れ強さ
を向上させて圧縮応力を付与するとともに、母材
表面を活性化すると同時に清浄粗面化する。次に
プラズマ溶射工程により、Ni，Ni−Cr合金、Ni
−Al合金、各種自溶合金又はMo等をラドルのサ
ンドブラスト工程により処理された母材表面に溶
射し、下地層を形成する。下地層金属は素地金属
との接触をよくし、一部に拡散層を作り、表面の
凹凸によつてくさび効果をあげる。このため剥
離・き裂現象が少なくなり、密着性及び耐食性も
向上する。下地層の厚さは、好ましくは80〜150
μである。次に仕上セラミツク溶射工程により、
酸化アルミニウム、酸化ケイ素、酸化クロム等の
セラミツク材料をラドルの下地層上に溶射してセ
ラミツク層を形成する。セラミツク層はアルミニ
ウム、マグネシウム、亜鉛等よりなる合金溶湯に
対する遮断的被膜を母材上に形成し、ラドルの耐
溶損、耐熱、耐蝕特性を向上させる。溶射膜厚は
好ましくは50〜150μである。
以上各工程を経て本考案による金属溶湯用ラド
ルは形成されるが、以下従来例との比較に基づい
て本考案の効果を明確にする。比較に用いた金属
溶湯用器具は、ダイカストマシン給湯用ラドルで
あり、ラドルの母材の材質は鋳鉄（FC−20）、溶
湯材質はアルミニウム合金（ADC−12）であ
る。従来例によるラドルと本考案によるラドルと
の耐用期間の比較を表１に示す。なお従来例にお
けるコーテイング剤の組成は水ガラス30％、ジル
コン15％、展着剤15％、水40％である。
The present invention relates to tools such as ladles and diamonds used for supplying molten metal such as aluminum alloys and magnesium alloys. For example, a ladle for molten metal generally has the shape shown in FIGS. 1 and 2, and is made of iron or SUS metal by casting or press molding. The ladle main body 1 is vessel-shaped and has a spout 2 at the top and a support part 4 provided at the tip of a bracket 3 integrally formed with the main body 1. Conventionally, when using this ladle, a surface coating agent made of water glass, zircon, a spreading agent, etc. is applied by brushing to the inner and outer surfaces of the ladle before use to prevent the ladle from melting and causing holes. I used it until it became unusable. In this case, the lifespan of the ladle is usually 7 to 10
It was hot for days. Another method of use is to apply the above-mentioned coating agent by brushing or the like just before starting use and at the beginning of every week. The useful life of the ladle in this case was 30 to 40 days. Despite the frequent coating work that has been done in the past, the lifespan of the ladle is extremely short and the ladle must be replaced at an early stage, especially in die-casting machines that operate fully automatically. This is a problem where the entire machine has to be stopped to replace the ladle, which not only leads to a significant drop in productivity, but also reduces work efficiency as the ladle has to be replaced and brushing work done frequently. was occurring. In addition, since the ladle was only artificially coated with a coating agent by brushing, etc., it easily peeled off due to impact or temperature changes, and the iron forming the ladle melted into the molten metal from the peeled part. There was also the risk that this would cause a deterioration in the quality of the metal, leading to serious material problems. In view of the above-mentioned conventional problems, this invention significantly reduces the corrosion damage of molten metal equipment, extends its service life and reduces costs, and at the same time, the metal forming the equipment melts into the molten metal and deteriorates the material quality. The purpose of the present invention is to provide a device for molten metal that does not cause molten metal. (Example) Next, as an example, cast iron or press (SUS,
A case in which the present invention is applied to a ladle for molten metal (iron) will be explained. First, in the sandblasting process, river sand or a relatively large abrasive material is blown onto the inner surface of the ladle body 1 and the spout 2 using compressed air to remove residual stress in the ladle base material and reduce stress concentration through the peening effect. It relaxes, improves fatigue strength, imparts compressive stress, and at the same time activates the surface of the base material and cleans and roughens it. Next, Ni, Ni-Cr alloy, Ni
- Al alloy, various self-fluxing alloys, Mo, etc. are thermally sprayed onto the surface of the base material treated by the ladle sandblasting process to form a base layer. The base layer metal makes good contact with the base metal, creates a diffusion layer in some parts, and creates a wedge effect due to the unevenness of the surface. Therefore, peeling and cracking phenomena are reduced, and adhesion and corrosion resistance are also improved. The thickness of the base layer is preferably 80 to 150
μ. Next, through the finishing ceramic spraying process,
A ceramic layer is formed by spraying a ceramic material such as aluminum oxide, silicon oxide, or chromium oxide onto the underlying layer of the ladle. The ceramic layer forms a barrier film on the base material against molten alloys made of aluminum, magnesium, zinc, etc., and improves the ladle's resistance to melting damage, heat, and corrosion. The sprayed film thickness is preferably 50 to 150μ. The ladle for molten metal according to the present invention is formed through each of the above steps, and the effects of the present invention will be clarified below based on a comparison with a conventional example. The molten metal tool used for comparison was a die-casting machine hot water supply ladle, the base material of the ladle was cast iron (FC-20), and the molten metal material was aluminum alloy (ADC-12). Table 1 shows a comparison of the service life of the conventional ladle and the ladle of the present invention. The composition of the coating agent in the conventional example is 30% water glass, 15% zircon, 15% spreading agent, and 40% water.
【表】
表１で明らかなように、本考案による溶射ラド
ルは従来品と比較して、初回コーテイングのみの
場合より10倍強、毎週コーテイングの場合より２
倍弱耐用期間が延び、又コーテイング処理時間及
び取換時間の無駄を防止できることが判明した。
（考案の効果）
少なくとも金属溶湯の接触する部分にサンドブ
ラスト工程を施した母材表面を有し、当該母材表
面にプラズマ溶射工程による金属下地層を形成
し、下地層の表面にセラミツク溶射工程によるセ
ラミツク層を形成したので、次の効果が期待でき
る。
(a) 溶損が低減し、耐用時間が大幅に長くなる。
従つて金属溶湯用器具に必要なコストの低減が
図れるようになる。
(b) コーテイング処理時間及び取替え時間に費す
無駄が無くなるため、作業能率が向上する。
(c) セラミツク層が強固に固着するので、容易に
剥離することがなくなる。従つて、セラミツク
層自体や母材金属が金属溶湯中に溶け込んで溶
湯の品質を悪化させる不具合を抑制できるよう
になる。[Table] As is clear from Table 1, compared to the conventional product, the thermal spray ladle according to the present invention is 10 times more effective than the case of initial coating only, and 2 times more than the case of weekly coating.
It has been found that the service life is extended by a factor of two, and that wasted coating processing time and replacement time can be prevented. (Effect of the invention) At least the part that comes in contact with the molten metal has a base metal surface that has been subjected to a sandblasting process, a metal base layer is formed on the base metal surface by a plasma spray process, and a ceramic base layer is formed on the surface of the base metal by a ceramic spray process. Since the ceramic layer is formed, the following effects can be expected. (a) Erosion loss is reduced and service life is significantly extended.
Therefore, it is possible to reduce the cost required for equipment for molten metal. (b) Work efficiency is improved because there is no waste in coating processing time and replacement time. (c) Since the ceramic layer is firmly fixed, it will not peel off easily. Therefore, it becomes possible to suppress the problem of the ceramic layer itself or the base metal melting into the molten metal and deteriorating the quality of the molten metal.
第１図は金属溶湯用ラドルの平面図、第２図は
第１図の−断面図である。１……ラドル本
体、２……注ぎ口。
FIG. 1 is a plan view of a ladle for molten metal, and FIG. 2 is a cross-sectional view taken from FIG. 1... Ladle body, 2... Spout.
Claims (1)
ラスト工程を施した母材表面を有し、当該母材表
面にプラズマ溶射工程による金属下地層を形成
し、下地層の表面にセラミツク溶射工程によるセ
ラミツク層を形成したことを特徴とする金属溶湯
用器具。 It has a base material surface that has been subjected to a sandblasting process on at least the part that comes into contact with the molten metal, a metal base layer is formed on the base metal surface by a plasma spray process, and a ceramic layer is formed on the surface of the base layer by a ceramic spray process. An appliance for molten metal characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5138882U JPS58157259U (en) | 1982-04-08 | 1982-04-08 | Equipment for molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5138882U JPS58157259U (en) | 1982-04-08 | 1982-04-08 | Equipment for molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58157259U JPS58157259U (en) | 1983-10-20 |
| JPS6142676Y2 true JPS6142676Y2 (en) | 1986-12-03 |
Family
ID=30062106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5138882U Granted JPS58157259U (en) | 1982-04-08 | 1982-04-08 | Equipment for molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157259U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7232007B2 (en) * | 2018-09-27 | 2023-03-02 | 東京窯業株式会社 | Member for molten metal and manufacturing method thereof |
-
1982
- 1982-04-08 JP JP5138882U patent/JPS58157259U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58157259U (en) | 1983-10-20 |
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