JPH02138454A - Production of thermally sprayed hard coating film - Google Patents
Production of thermally sprayed hard coating filmInfo
- Publication number
- JPH02138454A JPH02138454A JP28853388A JP28853388A JPH02138454A JP H02138454 A JPH02138454 A JP H02138454A JP 28853388 A JP28853388 A JP 28853388A JP 28853388 A JP28853388 A JP 28853388A JP H02138454 A JPH02138454 A JP H02138454A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- alloy
- thermally sprayed
- hard coating
- nitride
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000576 coating method Methods 0.000 title abstract description 12
- 239000011248 coating agent Substances 0.000 title abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 8
- 239000011195 cermet Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 15
- 230000035939 shock Effects 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 150000004767 nitrides Chemical class 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000007751 thermal spraying Methods 0.000 abstract description 5
- 229910052758 niobium Inorganic materials 0.000 abstract description 3
- 229910052715 tantalum Inorganic materials 0.000 abstract description 3
- 229910052719 titanium Inorganic materials 0.000 abstract description 3
- 229910052726 zirconium Inorganic materials 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract 4
- 239000012298 atmosphere Substances 0.000 description 9
- 238000007750 plasma spraying Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、硬質の溶射皮膜の製造方法に関し、特に耐熱
衝撃性に優れた硬質溶射皮膜の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing a hard thermal spray coating, and particularly to a method for producing a hard thermal spray coating with excellent thermal shock resistance.
〈従来の技術〉
各種構造部材の耐摩耗性、耐熱性、耐熱街掌性、耐食性
などを大きく向上させる方法として溶射皮膜を表面に設
ける゛方法が広く使用されるようになってきている。<Prior Art> As a method of greatly improving the abrasion resistance, heat resistance, heat resistance, corrosion resistance, etc. of various structural members, the method of providing a thermal spray coating on the surface has become widely used.
溶射方法としては、一般に大気中でプラズマ溶射する方
法（以下大気溶射法）と５０〜２５０Ｔｏｒｒの低圧不
活性ガス中でプラズマ溶射する方法（以下低圧プラズマ
溶射法）がある。Thermal spraying methods generally include a method of plasma spraying in the atmosphere (hereinafter referred to as atmospheric spraying method) and a method of plasma spraying in a low pressure inert gas of 50 to 250 Torr (hereinafter referred to as low pressure plasma spraying method).
また、前記大気溶射法には、■硬質な酸化物、炭化物、
或いは窒化物を主成分とする溶射材料を溶射被覆するも
の、■低融点材料を溶射被覆し、その後大気中で熱処理
するもの、■酸化物形成元素を含む材料を溶射被覆し、
その後大気中で熱処理するもの等がある。In addition, in the atmospheric spraying method, ■ hard oxides, carbides,
Alternatively, thermal spray coating with a thermal spray material containing nitride as the main component, ■ thermal spray coating with a low melting point material and then heat treatment in the atmosphere, ■ thermal spray coating with a material containing oxide-forming elements,
There are those that are then heat-treated in the atmosphere.
そして、前記■の低融点材料には、例えば、Ｎｉ、Ｃｒ
、５１．Ｂ、Ｆｅなどの自溶性合金があり、■の方法で
は、これを溶射被覆したあと熱処理を行って被覆層のみ
を溶かして緻密な皮膜を形成させようとするものである
。 なお、この場合の熱処理は、自溶性合金を溶かすこ
とを目的とするものであるから、必ずしも大気中で行う
必要はないが、この方がコスト上有利である。The low melting point material (①) includes, for example, Ni, Cr.
, 51. There are self-fusing alloys such as B and Fe, and in the method (2), they are thermally sprayed and then heat treated to melt only the coating layer and form a dense film. Note that since the heat treatment in this case is intended to melt the self-fluxing alloy, it is not necessarily necessary to perform it in the atmosphere, but this is more advantageous in terms of cost.
また、■の前記酸化物形成元素としてはＡ１が代表的で
あり、これを含む材料としては、例えば、Ｇｏ、Ｎｉ、
Ｃｒ、Ａｌ１ 、Ｙがある。 そして、これを溶射被覆
後、大気中で熱処理することによって、表面にＡｌ１
ｚｏｓを形成させて、耐摩耗性等を向上させようとする
ものである。Further, A1 is typical as the oxide-forming element (2), and materials containing this include, for example, Go, Ni,
There are Cr, Al1, and Y. After thermal spray coating, this is heat-treated in the atmosphere to coat the surface with Al1.
This is intended to improve wear resistance and the like by forming zos.
〈発明が解決しようとする課題〉
しかしながら、大気溶射法■の硬質な酸化物等を溶射被
覆するものについては、硬質な被膜が得られるが、物理
的に被覆したものであるから、溶射材粒子間の結合力が
弱く脆い、 従って、機械的もしくは熱的衝撃に弱いと
いう欠点がある。<Problems to be Solved by the Invention> However, although a hard coating can be obtained by spraying a hard oxide, etc. using atmospheric spraying method (■), since the coating is physically applied, the particles of the sprayed material The disadvantage is that the bond between the two is weak and brittle, making it susceptible to mechanical or thermal shock.
また、大気溶射法■については、用いる材料の融点が低
いため、高温では使用できないという欠点がある。 例
えば、前述したＮｉ、Ｏｒ。Furthermore, atmospheric spraying method (2) has the disadvantage that it cannot be used at high temperatures because the melting point of the material used is low. For example, the aforementioned Ni, Or.
Ｓｔ、Ｂ、Ｆｅ の融点は１１００℃前後であり、８
００℃以上になると急激に硬度が低下する。The melting points of St, B, and Fe are around 1100°C, and 8
When the temperature exceeds 00°C, the hardness decreases rapidly.
また、大気溶射法■の酸化物形成元素を含む材料を用い
たものについては、大気中で熱！Ａ埋を行った場合、酸
化反応が急速に起こるため、酸化物の形成は被覆層の表
層部に限られ、しかもこの時できた酸化層は非常に脆く
て熱的・機械的衝撃が加えられると脱落するという問題
がある。In addition, for those using materials containing oxide-forming elements in the atmospheric spraying method, heat can be removed in the atmosphere! When A-burying is performed, the oxidation reaction occurs rapidly, so oxide formation is limited to the surface layer of the coating layer, and the oxide layer formed at this time is extremely brittle and susceptible to thermal and mechanical shock. There is a problem with it falling off.
一方、低圧プラズマ溶射法は、低圧の不活性・ガスで行
うので気体抵抗が小さく、溶射材の被溶射体に衝撃する
速度が高くなり、緻密な被膜が得られる。 しかし、真
空室など装置が大がかりとなり、かつ大巾な硬度上昇に
はならないため、あまり好ましくない。On the other hand, low-pressure plasma spraying is performed using a low-pressure inert gas, so the gas resistance is low, the speed at which the spraying material impacts the object to be sprayed is high, and a dense coating can be obtained. However, this is not very preferable because it requires a large-scale device such as a vacuum chamber and does not result in a large increase in hardness.
本発明は、このような上述の問題を解決し、特に耐熱衝
撃性に優れた硬質溶射皮膜の製造方法を提供することを
目的とするものである。It is an object of the present invention to solve the above-mentioned problems and to provide a method for producing a hard thermal spray coating particularly excellent in thermal shock resistance.
く課題を解決するための手段〉
そこで、本発明は、窒化物形成元素を含む合金もしくは
その合金を２０％以上含むサーメット材料を溶射被覆し
た後に窒素雰囲気中で加熱処理したことを特徴とする硬
質溶射皮膜の製造方法を提供する。Means for Solving the Problems> Therefore, the present invention provides a hard material which is characterized by being thermally spray coated with an alloy containing a nitride-forming element or a cermet material containing 20% or more of the alloy, and then heat-treated in a nitrogen atmosphere. A method for producing a thermal spray coating is provided.
本発明では、窒化物形成元素を含む材料を溶射被覆した
後、Ｎ２ガス雰囲気中で熱処理することによって窒化物
が生成し、高硬度で衝撃に強い皮膜が得られる。In the present invention, nitrides are generated by thermally spraying a material containing a nitride-forming element and then heat-treating it in an N2 gas atmosphere, resulting in a highly hard and impact-resistant coating.
まず、本発明の根拠を下記の実験結果に基づいて説明す
る。First, the basis of the present invention will be explained based on the following experimental results.
用いた試験片は、１００ｍｍｘ８０ｍｍＸ１４ｍｍのス
テンレス鋼板であり、その表面には表１に示す成分組成
でもって各供試材を０．１ｍｍの厚みに溶射被覆した。The test piece used was a stainless steel plate measuring 100 mm x 80 mm x 14 mm, and its surface was thermally sprayed with each test material having the composition shown in Table 1 to a thickness of 0.1 mm.
被覆後、熱処理は高温雰囲気炉を用い、９００℃で４
時間保持した。After coating, heat treatment was performed at 900℃ for 4 hours using a high temperature atmosphere furnace.
Holds time.
熱衝撃試験は、大気中で行ない、１０００℃で２０分間
保持した後、水冷するという操作を繰り返して行い、皮
膜に割れまたは剥離が発生するまで継続した。The thermal shock test was conducted in the air, and the operation of holding at 1000° C. for 20 minutes and cooling with water was repeated until the film cracked or peeled off.
また、硬さはマイクログイッカース硬さ計を用い測定し
た。Further, the hardness was measured using a micro-Gwickers hardness meter.
この結果から以下のことがわかる。The following can be understood from this result.
Ｎｏ、１の大気溶射法では皮膜硬度はＨｖ４００であり
、Ｎｏ、２の低圧プラズマ法を用いてもＨｖ４５０であ
る。 また、Ｎｏ、３の大気中で熱処理を行なうとＨｖ
５００まで上昇するが熱衝撃性は低下する。The film hardness is Hv400 in the atmospheric spraying method of No. 1, and Hv450 even when the low-pressure plasma method of No. 2 is used. In addition, when heat treatment is performed in the atmosphere of No. 3, Hv
Although it increases to 500, the thermal shock resistance decreases.
Ｎｏ、４は窒化物を形成しやすい＾ぶを含有していない
ので、硬さの上昇はわずかである。Since No. 4 does not contain ^ which tends to form nitrides, the increase in hardness is slight.
Ｎｏ、５〜７は、八１の含有量を２％、５％、１３％と
増加させたものであり、Ａ１の含有量の増加とともに皮
膜硬度は上昇する。Nos. 5 to 7 have the content of 81 increased to 2%, 5%, and 13%, and the film hardness increases as the content of A1 increases.
Ｎｏ、８〜ｌＯは、Ｎｏ、７の成分組成の合金に酸化物
であるＺｒＯ，を混合し、合金の比率を１０．２０．３
０％と増加させたものである。 Ｎｏ、８の合金の比
率が１０％の時は皮膜硬度は非常に高いが耐熱衝撃性は
低い。 Ｎｏ、 ９の合金の比率が２０％の時は皮膜硬
度はＨｖ９５０で、耐熱衝撃性も優れている。 Ｎｏ
、１０の合金の比率を３０％にしたものではＨＶ９００
で耐熱′ａ撃性も十分にあるが、Ｎｏ、７の酸化物を含
まない皮膜と性能的にはかわらなくなってくる。For No. 8 to 1O, ZrO, which is an oxide, is mixed with the alloy having the composition of No. 7, and the ratio of the alloy is 10.20.3.
This is an increase of 0%. When the ratio of alloy No. 8 is 10%, the film hardness is very high, but the thermal shock resistance is low. When the ratio of alloy No. 9 is 20%, the film hardness is Hv950 and the thermal shock resistance is also excellent. No
, HV900 with 30% alloy ratio of 10
Although it has sufficient heat resistance and abrasion resistance, its performance is no different from No. 7, which does not contain oxides.
以上のことから、次のことがわかる。 すなわち、熱処
理は窒素雰囲気下で行なうのがよい。 熱処理を行なわ
ないと、表面を緻密な金属膜とすることができず、好ま
しくない。 また、溶射方法を低圧プラズマで行なって
もコストがかかる割には強度は高くならないため、−船
釣なプラズマ溶射法で行なう方法で十分である。 なお
、窒素雰囲気下で溶射を行なうと、窒化物が生成しやす
くなり、さらに高硬度で衝撃に強い被膜を得ることがで
きる。From the above, we understand the following. That is, the heat treatment is preferably performed under a nitrogen atmosphere. Without heat treatment, a dense metal film cannot be formed on the surface, which is not preferable. Further, even if the thermal spraying method is performed using low-pressure plasma, the strength will not be increased even though it is costly, so a method using a boat-based plasma spraying method is sufficient. Note that when thermal spraying is carried out in a nitrogen atmosphere, nitrides are more likely to be formed, and a coating that is even more hard and resistant to impact can be obtained.
また、窒素雰囲気下での加熱温度は、８００〜１１００
℃で行なうのが好ましい。 ８００℃未満では、窒化
物形成反応が緩慢で、１１００℃超では熱処理中に皮膜
が剥離する危険があるためである。In addition, the heating temperature under nitrogen atmosphere is 800 to 1100
Preferably, it is carried out at °C. This is because if the temperature is less than 800°C, the nitride formation reaction is slow, and if it exceeds 1100°C, there is a risk that the film will peel off during the heat treatment.
また、供試材成分としては、窒化物を形成しやすい元素
を含有しているのがよい。 この理由は、前述と同じで
ある。In addition, it is preferable that the test material components contain elements that are likely to form nitrides. The reason for this is the same as described above.
また、成分中に酸化物を含む（サーメット材料）場合は
、酸化物に対してＮｉ、Ｃｏ、Ｃｒ、ＹおよびＡλを含
有する合金比率は２０％以上とするのがよい。 また、
好ましくは３０％以上がよい。 合金比率が２０％未満
では熱衝撃性が低いためである。In addition, in the case where the components include oxides (cermet materials), the ratio of the alloy containing Ni, Co, Cr, Y, and Aλ to the oxides is preferably 20% or more. Also,
Preferably it is 30% or more. This is because thermal shock resistance is low when the alloy ratio is less than 20%.
また、酸化物は供試材成分中に含有されていてもいなく
ても、その効果はあまり変わらない。Moreover, the effect does not change much whether or not the oxide is contained in the components of the sample material.
なお、本実験では窒化物生成元素としてＡｎの効果を示
したが、本発明において窒化物生成元素であればいずれ
でもよく、例えはＡｆｌ以外にＴｉ、Ｎｂ、Ｔａ、Ｚｒ
、ｌＪｏ、Ｖ、Ｂ、Ｃｅ、Ｈｓ、Ｉｎ、Ｂｅ、Ｌｉ。Although this experiment showed the effect of An as a nitride-forming element, any nitride-forming element may be used in the present invention; for example, in addition to Afl, Ti, Nb, Ta, and Zr may be used.
, lJo, V, B, Ce, Hs, In, Be, Li.
Ｍｇ、 Ｍｎ 、 Ｓ ｉなどがある。 より好まし
くは表２に示すごと＜ 、Ｔｉ、Ｎｂ、Ｔａ、Ｚｒ、Ｓ
ｔを用いる。Examples include Mg, Mn, Si, etc. More preferably, as shown in Table 2, Ti, Nb, Ta, Zr, S
Use t.
また、窒化物生成元素を含む合金と混合する酸化物、炭
化物の例として本実験ではｚ「０２を示したが、高温で
安定な酸化物、炭化物であればいずれでもよく、例えば
ＺｒＯ，以外にＡｌ１２ｅｓ。In addition, in this experiment, Z'02 was shown as an example of an oxide or carbide to be mixed with an alloy containing a nitride-forming element, but any oxide or carbide that is stable at high temperatures may be used, for example, other than ZrO. Al12es.
Ｃｒ２Ｏ３，５１０２およびそれら酸化物の混合、さら
にはｆ；ｒ、ｃｔ、 Ｃｒ７Ｃ：３． Ｃｒ２３Ｃｅｌ
＋ ｗｃ、 ｗ２ｃ、ｓｉｃなどの炭化物を用いること
ができる。Cr2O3, 5102 and a mixture of these oxides, as well as f;r, ct, Cr7C:3. Cr23Cel
+ Carbides such as wc, w2c, and sic can be used.
なお、本発明に用いるこの他の供試材料としては、Ｎｉ
、Ｃｏ、ＣｒおよびＹ等を含むことができるｅ Ｎｉ
、Ｃｏは、耐熱材料として、Ｃｒは保護皮膜形成元素と
して、Ｙは保護皮膜補強維持機能を高める元素としてプ
ラズマ溶射に用いるのがよい。Note that other test materials used in the present invention include Ni
, Co, Cr and Y etc. e Ni
, Co as a heat-resistant material, Cr as a protective film-forming element, and Y as an element that enhances the function of reinforcing and maintaining the protective film in plasma spraying.
また、サーメット材料としては、Ｎｉ、Ｇｏ、Ｃｒ、Ｙ
と窒化物生成元素を含む合金と前述した酸化物、炭化物
とを混合あるいは焼結させた粉末を用いるのがよい。In addition, cermet materials include Ni, Go, Cr, Y
It is preferable to use a powder obtained by mixing or sintering an alloy containing a nitride-forming element and the above-mentioned oxide or carbide.
これらの硬質溶射皮膜は、連続熱処理ラインのハースロ
ール、ボイラーチューブやガスタービン翼などの高温部
材、転炉や溶銑予備処理設備のランス、サブランスある
いは高炉の羽口等について通用することができる。These hard thermal spray coatings can be used for hearth rolls in continuous heat treatment lines, high-temperature parts such as boiler tubes and gas turbine blades, lances and sub-lances in converter furnaces and hot metal pretreatment equipment, or tuyeres in blast furnaces.
〈実施例〉
以下、本発明を実施例に基づいて、さらに具体的に説明
する。<Examples> The present invention will now be described in more detail based on Examples.
（実施例１）
本発明の前述のＮｏ、 ７の供試材成分・組成および製
造方法に従って溶射皮膜付鋼板を自社の連続焼鈍ライン
のハースロールにて用い、ロール表面粗度の変化を調べ
た。(Example 1) A steel plate with a thermal spray coating was used in a hearth roll of our company's continuous annealing line according to the above-mentioned test material composition and manufacturing method of No. 7 of the present invention, and changes in roll surface roughness were investigated. .
本発明の供試材Ｎｏ、７は、５年間の使用の後も粗度は
Ｒａ３からＲａ２に低下したたりで、十分使用に耐えう
ることが分かった。The roughness of sample material No. 7 of the present invention decreased from Ra3 to Ra2 even after 5 years of use, and it was found that it was sufficiently durable for use.
（比較例１）
従来からある成分・組成および製造方法によって前述の
Ｎｏ、ｌの溶射皮膜付鋼板を製造し、実施例１と同様に
自社の連続焼鈍ラインのハースロールにて用い、ロール
表面粗度の変化を調べた。(Comparative Example 1) The above-mentioned No. 1 thermally sprayed steel sheets were manufactured using conventional ingredients, compositions, and manufacturing methods, and were used in the hearth roll of our company's continuous annealing line in the same manner as in Example 1, and the roll surface roughness was improved. We investigated the change in degree.
その結果、約２年間でロール表面粗度がＲａ３からＲａ
１に低下し、ロールスリップによる板の蛇行およびスリ
キズが発生していた。As a result, the roll surface roughness increased from Ra3 to Ra in about two years.
1, and meandering and scratches of the plate due to roll slip occurred.
〈発明の効果〉
本発明は、窒素雰囲気で熱処理をする簡単なプロセスの
追加によって耐熱衝撃性などの皮膜の本来の性質を損う
ことなく、皮膜の大巾な向上を計れるものであり、従来
の硬質酸化物や炭化物被覆による剥離の危険性もなく、
低圧プラズマ溶射法や、ＰＶＤ （真空蒸着法）、ＨＩ
Ｐ（熱間静水圧プレス法）などの大がかりな真空チャン
バーも必要ないものとした。<Effects of the Invention> The present invention is capable of greatly improving the film by adding a simple process of heat treatment in a nitrogen atmosphere without impairing the film's original properties such as thermal shock resistance. There is no risk of peeling due to hard oxide or carbide coatings.
Low-pressure plasma spraying, PVD (vacuum deposition), HI
A large-scale vacuum chamber such as P (hot isostatic pressing method) is not required.
また、この皮膜付鋼板を連続焼鈍ラインのハースロール
等に用いた場合、その表面粗度の減少が少ないことより
、修繕費コスト削減はもちろんのこと生産性および製品
品質上多大な効果が得られる。In addition, when this coated steel sheet is used in hearth rolls, etc. of continuous annealing lines, there is little reduction in surface roughness, which not only reduces repair costs but also greatly improves productivity and product quality. .
Claims (1)
０％以上含むサーメット材料を溶射被覆した後に窒素雰
囲気中で加熱処理したことを特徴とする硬質溶射皮膜の
製造方法。(1) An alloy containing a nitride-forming element or its alloy 2
1. A method for producing a hard thermal spray coating, characterized in that a cermet material containing 0% or more is thermally sprayed and then heat treated in a nitrogen atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288533A JPH0742564B2 (en) | 1988-11-15 | 1988-11-15 | Method for manufacturing hard spray coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288533A JPH0742564B2 (en) | 1988-11-15 | 1988-11-15 | Method for manufacturing hard spray coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02138454A true JPH02138454A (en) | 1990-05-28 |
| JPH0742564B2 JPH0742564B2 (en) | 1995-05-10 |
Family
ID=17731472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63288533A Expired - Fee Related JPH0742564B2 (en) | 1988-11-15 | 1988-11-15 | Method for manufacturing hard spray coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742564B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016513170A (en) * | 2013-01-24 | 2016-05-12 | ハー．ツェー．スタルク ゲゼルシャフト ミット ベシュレンクテル ハフツングＨ．Ｃ． Ｓｔａｒｃｋ ＧｍｂＨ | Method for producing thermal spraying powder containing chromium nitride |
-
1988
- 1988-11-15 JP JP63288533A patent/JPH0742564B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016513170A (en) * | 2013-01-24 | 2016-05-12 | ハー．ツェー．スタルク ゲゼルシャフト ミット ベシュレンクテル ハフツングＨ．Ｃ． Ｓｔａｒｃｋ ＧｍｂＨ | Method for producing thermal spraying powder containing chromium nitride |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0742564B2 (en) | 1995-05-10 |
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