JP2774405B2 - Thermal spray material containing metal powder - Google Patents
Thermal spray material containing metal powderInfo
- Publication number
- JP2774405B2 JP2774405B2 JP3326203A JP32620391A JP2774405B2 JP 2774405 B2 JP2774405 B2 JP 2774405B2 JP 3326203 A JP3326203 A JP 3326203A JP 32620391 A JP32620391 A JP 32620391A JP 2774405 B2 JP2774405 B2 JP 2774405B2
- Authority
- JP
- Japan
- Prior art keywords
- chromium
- weight
- alumina
- silicate
- metal
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00577—Coating or impregnation materials applied by spraying
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Coating By Spraying Or Casting (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、工業窯炉の耐火ライニ
ングの形成あるいは補修用として用いられる金属粉含有
溶射材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal powder-containing thermal spray material used for forming or repairing a refractory lining of an industrial kiln.
【０００２】[0002]
【従来の技術】近年、工業窯炉の耐火ライニングの形成
あるいはその補修にＬＰＧ−酸素、灯油−酸素及びコー
クス粉−酸素炎等による火炎あるいはプラズマ等による
高温，高速の火炎中を耐火粉末を飛行させて溶融し、窯
炉の内壁に吹付ける溶射法が利用されるようになった。2. Description of the Related Art In recent years, refractory powder has been flown in a high-temperature, high-speed flame such as a flame of LPG-oxygen, kerosene-oxygen and coke powder-oxygen flame, or a plasma or the like for forming or repairing a refractory lining of an industrial kiln. Then, a thermal spraying method of melting and spraying the inner wall of the kiln has come to be used.
【０００３】この中、アルミナ系溶射材を溶射する方法
として、バーナーを移動させて溶射材を一層ずつ重ね溶
射して厚みを増していく方法が採られている。ところ
が、このアルミナ系の中性系材料は、いずれも溶射体形
成時に層と層が剥離し易く、その結果、層と層が大きく
離れた層状の大きな空隙を生じ易く、溶射体の耐食性，
熱間強度，接着性に劣り、満足できる溶射体を得ること
ができない。[0003] Among these, as a method of spraying an alumina-based sprayed material, a method is employed in which a burner is moved and the sprayed material is sprayed one by one to increase the thickness. However, this alumina-based neutral material is apt to peel off layers and layers when forming a sprayed body, and as a result, it is easy to form large gaps in the form of layers where the layers are largely separated from each other.
It is inferior in hot strength and adhesiveness, and a satisfactory sprayed body cannot be obtained.
【０００４】このアルミナ系溶射材の欠点を解消するた
めに、特開平１−２６４９７６号公報に開示されている
アルミナ−ＭｇＯ・Ａｌ2 Ｏ3 系スピネル系、特公昭６
０−３５３１１号公報に開示されているアルミナ−クロ
ム系等が使用されるようになったが、これらの欠点をす
べて解消するには至っていない。In order to solve the drawbacks of the alumina-based thermal spraying material, an alumina-MgO.Al 2 O 3 -based spinel disclosed in Japanese Patent Application Laid-Open No. 1-264976 is disclosed.
Alumina-chromium and the like disclosed in Japanese Patent Publication No. 0-35311 have been used, but none of these disadvantages has been solved.
【０００５】とくに、前記の特公昭６０−３５３１１号
公報に開示されているＡｌ2 Ｏ3 とＣｒ2 Ｏ3 を組合せ
た溶射材は、Ｃｒ2 Ｏ3 質原料として、クロム鉄鉱，マ
グクロクリンカーを使用しているため、溶射体の耐食性
の向上には効果があるが、Ｃｒ2 Ｏ3 質原料の融点が高
いことにより、添加したＣｒ2 Ｏ3 は充分にＡｌ2 Ｏ3
と接触して固溶する効率が低いため熱間強度の向上には
寄与しない。[0005] In particular, the thermal spray material combining Al 2 O 3 and Cr 2 O 3 disclosed in the above-mentioned Japanese Patent Publication No. 60-35311 discloses a chromite ore and a magcroclinker as a Cr 2 O 3 raw material. The use of Cr 2 O 3 is effective in improving the corrosion resistance of the thermal sprayed body, but the added Cr 2 O 3 is sufficiently Al 2 O 3 because the melting point of the Cr 2 O 3 raw material is high.
Does not contribute to the improvement of hot strength because of low efficiency of solid solution when contacted.
【０００６】さらに、溶射材に金属シリコンのような金
属粉を添加することによって溶融性を上げることも特公
昭４３−１６０１号公報，特公昭４９−４６３６４号公
報等によって公知であるが、アルミナ系の中性系材料の
溶射体の積層間の空隙の形成防止には効果はない。Further, it is also known from Japanese Patent Publication Nos. 43-1601 and 49-46364 to increase the meltability by adding a metal powder such as metallic silicon to the sprayed material. It is not effective in preventing the formation of voids between the laminated thermal spray bodies of the neutral material.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、充分
な耐食性，熱間強度，接着性を有し、製鋼用転炉や取鍋
のライニングに適用しても充分な耐用性を有するアルミ
ナ系溶射材を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an alumina having sufficient corrosion resistance, hot strength and adhesiveness, and having sufficient durability even when applied to a converter for steelmaking and a lining of a ladle. An object of the present invention is to provide a system thermal spray material.
【０００８】[0008]
【課題を解決するための手段】本発明の金属含有溶射材
は、アルミナを１０重量％以上と、ＭｇＯ・Ａｌ 2 Ｏ 3 系
スピネルとクロム質原料とマグネシアの中の何れか１種
または２種以上とからなる耐火材料に、リン酸塩と珪酸
塩中の何れか１種または両方を０．１〜５重量％と、金
属クロムまたはクロム成分を含有する合金をクロム成分
として１〜１０重量％を添加したことを特徴とする。SUMMARY OF THE INVENTION The metal-containing thermal spray material of the present invention is provided.
Is based on MgO.Al 2 O 3 with alumina at 10% by weight or more.
Any one of spinel, chromic raw material and magnesia
Or a refractory material consisting of two or more phosphates and silica
0.1 to 5% by weight of one or both of the salt and gold
Chromium component or alloy containing chromium component
1 to 10% by weight .
【０００９】リン酸塩はたとえば、リン酸アルミニウ
ム，リン酸ナトリウム等が使用でき、珪酸塩は珪酸ソー
ダ，珪酸カリウム等の珪酸アルカリ金属塩等で粒度が
０．５ｍｍ以下のものを使用する。As the phosphate, for example, aluminum phosphate, sodium phosphate or the like can be used. As the silicate, use is made of an alkali metal silicate such as sodium silicate or potassium silicate having a particle size of 0.5 mm or less.
【００１０】金属クロムとしては、粒度が０．５ｍｍ以
下の金属クロム単味あるいはクロムの含有量が１重量％
以上のＦｅ−Ｃｒ系，Ｓｉ−Ｃｒ系等のクロムを含有す
る合金が使用できる。The metal chromium may be a single metal chromium having a particle size of 0.5 mm or less or a chromium content of 1% by weight.
Alloys containing chromium, such as the above-mentioned Fe-Cr-based and Si-Cr-based, can be used.
【００１１】[0011]
【作用】本発明は、アルミナを１０重量％以上配合し、
ＭｇＯ・Ａｌ2 Ｏ3 系スピネル、クロム質原料、マグネ
シアから選ばれる１種以上からなる耐火材料に、リン酸
塩及び珪酸塩から選ばれる１種以上を適量添加すること
により、上記溶射体組織の欠点である層状の大きな空隙
の形成をなくし、また接着性も同時に改良でき、更に金
属クロム及びクロム成分を含有する合金から選ばれる１
種以上を適量添加することにより、その酸化熱を利用
し、溶射体組織を強化して耐食性，熱間強度を大幅に向
上することができる。According to the present invention, at least 10% by weight of alumina is blended.
By adding an appropriate amount of at least one selected from phosphates and silicates to a refractory material comprising at least one selected from MgO.Al 2 O 3 spinel, chromic raw material, and magnesia, The formation of large voids in the form of layers, which is a disadvantage, can be eliminated, and the adhesiveness can be improved at the same time.
By adding an appropriate amount of the seed or more, the heat of oxidation can be utilized to strengthen the structure of the sprayed body, thereby greatly improving the corrosion resistance and hot strength.
【００１２】アルミナが１０重量％未満の配合である
と、溶融性が悪く、リン酸塩、珪酸塩、クロム等の添加
によっても層状の空隙の形成を防止することはできな
い。If the alumina content is less than 10% by weight, the meltability is poor, and the formation of layered voids cannot be prevented even by the addition of phosphates, silicates, chromium and the like.
【００１３】アルミナを１０重量％以上配合し、ＭｇＯ
・Ａｌ2 Ｏ3 系スピネル、クロム質原料、マグネシアか
ら選ばれる１種以上からなる耐火材料は、溶射体形成時
に層と層が剥離し易く、その結果、層と層が大きく離れ
た層状の大きな空隙を生じ易いが、その原因はいずれの
系も融点が高い材料同士の組合せであり、最も融点の低
い材料（アルミナ）でも２０５０℃あるため、材料の融
点が高く、固化し易いために、１層の融着性が悪く、層
と層が剥離し易くなるためと考えられる。そこで、材料
の融点を下げて１層の融着性を改善すれば、層状の大き
な空隙をなくすことができ、更に施工面との融着性、す
なわち、接着性も向上できる。リン酸塩及び珪酸塩は、
アルミナの融点を下げる材料として非常に効果がある。[0013] More than 10% by weight of alumina
· Al 2 O 3 spinel, chromium feedstock refractory material comprising one or more selected from magnesia, easily layer to layer during thermal spraying formation is peeled off, as a result, the size of the layered the layer and the layer far away Voids are likely to be formed, but the cause is a combination of materials having a high melting point in any system, and the material having the lowest melting point (alumina) has a temperature of 2050 ° C., so that the material has a high melting point and is easily solidified. This is considered to be because the layer has poor fusion property and the layers are easily separated from each other. Therefore, by lowering the melting point of the material and improving the fusibility of a single layer, it is possible to eliminate large layered voids and further improve the fusibility with the construction surface, that is, the adhesion. Phosphates and silicates are
It is very effective as a material for lowering the melting point of alumina.
【００１４】一般に中性系，塩基性系材料の融点を下げ
る材料は、リン酸塩及び珪酸塩以外にもシリカ，酸化鉄
等があるが、低融化の効果はリン酸塩及び珪酸塩よりも
弱く、従って、添加量も０．１〜５重量％では不充分で
あり、それ以上の添加量が必要となる。シリカ，酸化鉄
を５重量％以上添加した場合、溶射体の組織，接着性は
向上するが、リン酸塩及び珪酸塩よりも弱く、しかも耐
食性は低下する欠点がある。リン酸塩及び珪酸塩の場合
は、溶射フレームを通過中に材料と反応して低融化さ
せ、施工面に付着した後、溶射体を形成させている途
中、あるいは形成後にある程度蒸発すると考えられる。
そのために、リン酸塩及び珪酸塩は、材料の低融化を生
じさせるが、耐食性の低下がシリカ，酸化鉄等に比較し
て極めて小さいと考えられる。In general, the materials for lowering the melting point of neutral and basic materials include silica and iron oxide in addition to phosphates and silicates. The effect of lowering the melting point is lower than that of phosphates and silicates. It is weak, and therefore, the addition amount of 0.1 to 5% by weight is insufficient, so that an additional amount is required. When silica or iron oxide is added in an amount of 5% by weight or more, the structure and adhesiveness of the sprayed material are improved, but they are weaker than phosphates and silicates, and have the disadvantage that corrosion resistance is reduced. In the case of phosphates and silicates, it is considered that they react with the material while passing through the thermal spraying frame to lower the melting point, adhere to the construction surface, evaporate to some extent during the formation of the thermal spray, or to some extent after the formation.
For this reason, phosphates and silicates cause low melting of the material, but it is considered that the decrease in corrosion resistance is extremely small as compared with silica, iron oxide and the like.
【００１５】金属クロムはクロム質原料と異なり、酸化
する際に発熱するため、溶射体の溶融性を高める効果が
あり、そのために、Ｃｒが酸化されて生じたＣｒ2Ｏ3は
充分にＡｌ2Ｏ3へ固溶する効率が高い。さらに、Ｃｒが
酸化されて生じたＣｒ2Ｏ3が溶鋼，スラグに濡れにくい
ために、耐食性を向上させ、Ａｌ2Ｏ3と完全固溶してＡ
ｌ2Ｏ3の融点を上げ、熱間強度及び耐食性も向上する。Since chromium metal generates heat when oxidized, unlike chromium-based raw materials, it has the effect of improving the meltability of the sprayed body. Therefore, Cr 2 O 3 generated by oxidizing Cr is sufficiently reduced to Al 2. High efficiency of solid solution in O 3 . Further, Cr 2 O 3 generated by oxidization of Cr is hardly wetted by molten steel and slag, so that the corrosion resistance is improved, and a solid solution with Al 2 O 3 forms a solid solution.
Raises the melting point of l 2 O 3 and also improves hot strength and corrosion resistance.
【００１６】リン酸塩及び珪酸塩との併合配合は、互い
に効果の併殺が生じるように思われるが、実際にはお互
いにそれぞれの効果は複合され発揮される。すなわち、
リン酸塩及び珪酸塩によるアルミナの融点低下が先に生
じ、その後に金属クロム及びクロム成分を含有する合金
によるアルミナの融点上昇の効果が生じているものと思
われる。Ｃｒ2 Ｏ3 がＡｌ2 Ｏ3 に固溶する方がリン酸
塩及び珪酸塩がアルミナを低融化するよりも時間がかか
る結果、これらの効果が複合化するものと考えられる。Although it seems that the combined blending with a phosphate and a silicate causes a mutual suppression of the effects, the respective effects are actually combined with each other and exerted. That is,
It is considered that the melting point of alumina is lowered first by the phosphate and the silicate, and then the effect of raising the melting point of the alumina by the alloy containing chromium metal and the chromium component is generated. It is considered that it takes more time for Cr 2 O 3 to be dissolved in Al 2 O 3 than for phosphate and silicate to lower the melting point of alumina, so that these effects are compounded.
【００１７】本発明に使用するリン酸塩，珪酸塩の配合
割合が０．１重量％未満では材料の低融化の効果が小さ
く、層状の大きな空隙をなくす効果及び接着性向上の効
果がなく、５重量％超では材料の低融化の効果が大きす
ぎ溶射中に施工面より垂れて落ちてしまい、付着歩留り
が低下し、また耐食性も低下する。When the mixing ratio of the phosphate and silicate used in the present invention is less than 0.1% by weight, the effect of lowering the melting of the material is small, and the effect of eliminating large laminar voids and the effect of improving adhesion are not obtained. If it exceeds 5% by weight, the effect of lowering the melting of the material is too large, and the material falls down from the construction surface during thermal spraying, so that the adhesion yield decreases and the corrosion resistance also decreases.
【００１８】粒度は０．５ｍｍ超では溶融性の低下が大
きく、リン酸塩，珪酸塩の材料の低融化の効果が下がる
ため、０．５ｍｍ以下である必要がある。If the particle size is more than 0.5 mm, the meltability is greatly reduced, and the effect of lowering the melting of the phosphate and silicate materials is reduced, so that the particle size needs to be 0.5 mm or less.
【００１９】また、本発明の金属含有溶射材に添加する
金属クロムまたはクロム成分を含有する合金をクロム成
分として１〜１０重量％とする。１重量％未満では酸化
されてＣｒ2Ｏ3となり、Ａｌ2Ｏ3へ固溶する際の固溶す
るＣｒ2Ｏ3の割合が少なくなり溶射体を強化する効果が
低くなる。一方、１０重量％超添加しても溶射体の強化
する効果は下がることはないが、金属クロム及びクロム
成分を含有する合金は高価であるため、配合割合が多く
なればそれだけでコストが大きくなる。従って、１〜１
０重量％の範囲で充分な効果が得られるため、１０重量
％超添加する必要はない。粒度は０．５ｍｍ以下であ
る。０．５ｍｍ超では溶融性の低下が大きく、金属クロ
ム，クロム成分を含有する合金の効果が下がるため、
０．５ｍｍ以下である必要がある。Further, an alloy containing a metal chromium or a chromium component is added to the metal-containing spraying material of the present invention the chromium formed
The content is 1 to 10% by weight. If it is less than 1% by weight, it is oxidized to Cr 2 O 3 , and the proportion of Cr 2 O 3 which forms a solid solution in Al 2 O 3 decreases, and the effect of strengthening the sprayed body decreases. On the other hand, the effect of strengthening the thermal sprayed body does not decrease even if it is added in an amount exceeding 10% by weight, but the metal chromium and the alloy containing the chromium component are expensive. . Therefore, 1-1
Since sufficient effects can be obtained in the range of 0% by weight, it is not necessary to add more than 10% by weight. The particle size is 0.5 mm or less. If it exceeds 0.5 mm, the melting property is greatly reduced, and the effect of the metal chromium and the alloy containing the chromium component is reduced.
It needs to be 0.5 mm or less.
【００２０】[0020]
【実施例】本発明の実施例を比較例と共に表１，２に示
す。Examples Examples of the present invention are shown in Tables 1 and 2 together with comparative examples.
【００２１】表に示す溶射材の粒度はいずれも３００μ
ｍ以下であり、プロパン−酸素の火炎を熱源として、溶
射バーナーから３００ｍｍ離れたマグクロレンガに対し
て溶射したものの付着性，耐食性、それに接着性を調べ
たものである。The particle size of each of the sprayed materials shown in the table is 300 μm.
m, and the adhesion, corrosion resistance, and adhesion of a material sprayed onto a magcrobrick 300 mm away from the spraying burner using a propane-oxygen flame as a heat source were examined.
【００２２】材料はバインダーを添加して造粒等の操作
を行う必要はなく、単純に乾式混合するだけで充分であ
る。It is not necessary to add a binder and perform an operation such as granulation, and simple dry mixing is sufficient.
【００２３】表１にアルミナ−Ａｌ2 Ｏ3 ・ＭｇＯ系ス
ピネル系の耐火材料を示す。Table 1 shows alumina-Al 2 O 3 .MgO spinel refractory materials.
【００２４】[0024]
【表１】 リン酸塩又は珪酸塩を０．１〜５重量％添加し、金属ク
ロム又はクロム成分を含有する合金を１〜１０重量％添
加した本発明の実施例１〜５では、層状の大きな空隙が
なく、耐食性，熱間強度，付着性，接着性のいずれにお
いても優れている。[Table 1] In Examples 1 to 5 of the present invention in which phosphate or silicate was added in an amount of 0.1 to 5% by weight and metal chromium or an alloy containing a chromium component was added in an amount of 1 to 10% by weight, there was no large layered void. , Corrosion resistance, hot strength, adhesion, and adhesion.
【００２５】しかしながら、比較例１〜１３を見ても明
らかな通り、リン酸塩又は珪酸塩、金属クロム又はクロ
ム成分を含有する合金のいずれも添加されていない場合
は、層状の大きな空隙が生じ、耐食性，熱間強度，接着
性に劣っていることが判る。リン酸塩又は珪酸塩を添加
し、金属クロム又はクロム成分を含有する合金を添加し
ていない場合は、層状の大きな空隙がなく、接着性は良
好であるが、耐食性，熱間強度は劣っている。However, as is apparent from Comparative Examples 1 to 13, when none of phosphate or silicate, metal chromium, or an alloy containing a chromium component is added, large layered voids are formed. It can be seen that they are inferior in corrosion resistance, hot strength and adhesiveness. When phosphate or silicate is added and metal chromium or an alloy containing a chromium component is not added, there are no large layered voids and the adhesion is good, but the corrosion resistance and hot strength are poor. I have.
【００２６】リン酸塩又は珪酸塩を添加せず、金属クロ
ム又はクロム成分を含有する合金を添加している場合
は、層状の大きな空隙が生じ、耐食性，熱間強度，接着
性に劣っていることがわかる。リン酸塩又は珪酸塩を添
加しても０．１重量％未満では添加効果がないため、層
状の大きな空隙が生じ、耐食性，熱間強度，接着性に劣
っており、５重量％超では、層状の大きな空隙は生じて
いないが、低融化の効果が大きくなり過ぎて、耐食性，
熱間強度が劣っている。リン酸塩又は珪酸塩を添加し、
金属クロム又はクロム成分を含有する合金を添加しても
１重量％未満では層状の大きな空隙は生じず、接着性は
良好であるが耐食性，熱間強度が劣っている。なお、ア
ルミナが１０重量％未満ではリン酸塩又は珪酸塩を０．
１〜５重量％添加し、金属クロム又はクロム成分を含有
する合金を１〜１０重量％添加しても溶融性が低すぎる
ため、層状の大きな空隙が生じ、耐食性，熱間強度，接
着性に劣っている。When a chromium metal or an alloy containing a chromium component is added without adding a phosphate or a silicate, large layered voids are formed, and the corrosion resistance, hot strength and adhesiveness are poor. You can see that. Even if phosphate or silicate is added, if it is less than 0.1% by weight, there is no effect of addition, so large laminar voids are generated, and the corrosion resistance, hot strength and adhesiveness are inferior. Although there are no large laminar voids, the effect of low melting becomes too large,
Poor hot strength. Add phosphate or silicate,
Even if a metal chromium or an alloy containing a chromium component is added, if it is less than 1% by weight, large laminar voids are not formed and the adhesion is good, but the corrosion resistance and the hot strength are inferior. If the alumina content is less than 10% by weight, phosphate or silicate is added in an amount of 0.1%.
Even if 1 to 5% by weight is added and 1 to 10% by weight of metal chromium or an alloy containing a chromium component is added, the meltability is too low, so that large laminar voids are generated and the corrosion resistance, hot strength, and adhesion are reduced. Inferior.
【００２７】以下、表２にＡｌ2 Ｏ3 −Ｃｒ2 Ｏ3 系の
場合を示した。Table 2 shows the case of the Al 2 O 3 —Cr 2 O 3 system.
【００２８】[0028]
【表２】 この場合も、表１に示すアルミナ−Ａｌ2 Ｏ3 ・ＭｇＯ
系スピネル系の耐火材料と同様に、比較例と比較して、
層状の大きな空隙がなく、耐食性，熱間強度，付着性，
接着性いずれにおいても優れていることが分かる。[Table 2] Also in this case, the alumina-Al 2 O 3 .MgO shown in Table 1 was used.
Like the spinel-based refractory material, compared to the comparative example,
There are no large layered voids, corrosion resistance, hot strength, adhesion,
It can be seen that the adhesiveness is excellent.
【００２９】[0029]
【発明の効果】本発明による火炎溶射材によって、以下
の効果を奏することができる。The following effects can be obtained by the flame sprayed material according to the present invention.
【００３０】（１）格別従来の溶射条件を変更すること
なく、付着性，接着性，熱間強度，組織が向上した溶射
体を形成できる。(1) A sprayed body having improved adhesion, adhesion, hot strength and structure can be formed without changing the conventional spraying conditions.
【００３１】（２）ライニングの形成，補修効果を上げ
ることができ、工業窯炉の稼動率向上，補修工数の低減
等に貢献する効果は極めて大きい。(2) The effect of forming and repairing the lining can be enhanced, and the effect of contributing to the improvement of the operation rate of the industrial kiln and the reduction of the repair man-hour is extremely large.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 倉田 浩輔 福岡県北九州市戸畑区飛幡町１番１号 新日本製鐵株式会社 八幡製鐵所内 (72)発明者 松尾 三郎 福岡県北九州市戸畑区飛幡町１番１号 新日本製鐵株式会社 八幡製鐵所内 (56)参考文献 特開 昭57−126964（ＪＰ，Ａ) 特開 平１−264976（ＪＰ，Ａ) 特開 昭56−88882（ＪＰ，Ａ) 特開 昭59−16976（ＪＰ，Ａ) 特開 平２−97657（ＪＰ，Ａ) 特開 平４−305068（ＪＰ，Ａ) 特開 平５−39557（ＪＰ，Ａ) 特公 昭60−35311（ＪＰ，Ｂ２) 特公 昭49−46364（ＪＰ，Ｂ１) 特公 昭43−1601（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.6，ＤＢ名) C23C 4/00 - 6/00 C04B 35/66──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kosuke Kurata 1-1, Hibata-cho, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Inside Yawata Works (72) Inventor Saburo Matsuo Hibata, Tobata-ku, Kitakyushu-shi, Fukuoka No. 1-1, Nippon Steel Corporation Yawata Works (56) References JP-A-57-126964 (JP, A) JP-A-1-264976 (JP, A) JP-A-56-88882 (JP) JP-A-59-16976 (JP, A) JP-A-2-97657 (JP, A) JP-A-4-305068 (JP, A) JP-A-5-39557 (JP, A) 60-35311 (JP, B2) JP 49-46364 (JP, B1) JP 43-1601 (JP, B1) (58) Fields investigated (Int. Cl. 6 , DB name) C23C 4/00 -6/00 C04B 35/66
Claims (1)
Ａｌ 2 Ｏ 3 系スピネルとクロム質原料とマグネシアの中の
何れか１種または２種以上とからなる耐火材料に、リン
酸塩と珪酸塩中の何れか１種または両方を０．１〜５重
量％と、金属クロムまたはクロム成分を含有する合金を
クロム成分として１〜１０重量％を添加してなる金属含
有溶射材。And 1. A alumina 10 wt% or more, MgO ·
Al 2 O 3 spinel, chromium raw material and magnesia
Phosphorus is added to the refractory material consisting of one or more
0.1 to 5 layers of one or both of acid salt and silicate
% And the alloy containing chromium metal or chromium component
A metal-containing thermal spray material obtained by adding 1 to 10% by weight as a chromium component .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3326203A JP2774405B2 (en) | 1991-12-10 | 1991-12-10 | Thermal spray material containing metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3326203A JP2774405B2 (en) | 1991-12-10 | 1991-12-10 | Thermal spray material containing metal powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05163561A JPH05163561A (en) | 1993-06-29 |
| JP2774405B2 true JP2774405B2 (en) | 1998-07-09 |
Family
ID=18185160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3326203A Expired - Fee Related JP2774405B2 (en) | 1991-12-10 | 1991-12-10 | Thermal spray material containing metal powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2774405B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529116C (en) * | 2002-12-26 | 2009-08-19 | 新日本制铁株式会社 | Alloyed-molten-zinc-plated steel sheet with excellent processability and high strength and process for producing the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035311B2 (en) * | 1981-01-28 | 1985-08-14 | 新日本製鐵株式会社 | thermal spray material |
| JPH01264976A (en) * | 1988-04-13 | 1989-10-23 | Nippon Steel Corp | Flame spraying material |
-
1991
- 1991-12-10 JP JP3326203A patent/JP2774405B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05163561A (en) | 1993-06-29 |
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