JPH0647713B2 - Method for producing Ti / B composite thermal spray material and Ti / B composite thermal spray material - Google Patents
Method for producing Ti / B composite thermal spray material and Ti / B composite thermal spray materialInfo
- Publication number
- JPH0647713B2 JPH0647713B2 JP2298656A JP29865690A JPH0647713B2 JP H0647713 B2 JPH0647713 B2 JP H0647713B2 JP 2298656 A JP2298656 A JP 2298656A JP 29865690 A JP29865690 A JP 29865690A JP H0647713 B2 JPH0647713 B2 JP H0647713B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- powders
- casing
- thermal spray
- spray material
- 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
- 239000000463 material Substances 0.000 title claims description 34
- 239000007921 spray Substances 0.000 title claims description 26
- 239000002131 composite material Substances 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000843 powder Substances 0.000 claims description 112
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 238000007751 thermal spraying Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 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
- 239000006185 dispersion Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、例えばプラズマ溶射、ガス溶射等に用いられ
る溶射材であってＴｉ粉末がＢ粉末で被覆されてなる粉
粒状のＴｉ・Ｂ複合溶射材を製造する方法、及びそれに
よって製造されたＴｉ・Ｂ複合溶射材に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a thermal spray material used for plasma spraying, gas spraying, etc., which is a granular Ti / B composite in which Ti powder is coated with B powder. The present invention relates to a method for producing a thermal spray material and a Ti / B composite thermal spray material produced thereby.
（従来の技術） 複数種類例えば２種類の粉末を溶射材として用る場合に
おいて、大径の粉末の表面に小径の粉末を付着させて大
径粉末を小径粉末で被覆し粉粒状としたものを用いるこ
とは知られている。そしてこのような粉粒状の複合溶射
材の製造方法としては、例えば特公昭６１−１９５８３
号公報、特開昭６３−１６９３７１号公報に記載の方法
が知られている。特公昭６１−１９５８３号公報記載の
方法は、小径粉末を大径粉末表面にまぶす等した後、両
粉末の界面で固溶が生じる温度に加熱するものであり、
特開昭６３−１６９３７１号公報記載の方法は、大径粉
末と小径粉末とポリビニルアルコール等の造粒用バイン
ダ物質とを併せて混合した後、加熱してバインダ物質を
蒸発除去させるものである。(Prior Art) When a plurality of types, for example, two types of powders are used as a thermal spraying material, a small diameter powder is adhered to the surface of a large diameter powder, and the large diameter powder is coated with a small diameter powder to form a powder. It is known to be used. As a method for producing such a powder-composite thermal spray material, for example, Japanese Patent Publication No. 61-19583.
The methods described in JP-A No. 63-169371 and JP-A No. 63-169371 are known. In the method described in Japanese Patent Publication No. 61-19583, a small-diameter powder is sprinkled on the surface of a large-diameter powder, and then heated to a temperature at which a solid solution is formed at the interface between the two powders.
The method described in Japanese Patent Application Laid-Open No. 63-169371 is to mix large-diameter powder, small-diameter powder and a binder material for granulation such as polyvinyl alcohol together and then heat to remove the binder material by evaporation.
（発明が解決しようとする問題点） しかし特公昭６１−１９５８３号公報記載の方法では、
まぶし具合によっては溶射材中における大径粉末及び小
径粉末の分散が均質にはならない恐れがあった。大径粉
末及び小径粉末の分散が均質ではない溶射材を用いる
と、溶射によって得られた皮膜の物性が場所によって異
なってくるという問題が生じる。また特開昭６３−１６
９３７１号公報記載の方法では、バインダ物質を用いる
ため面倒であり、しかも大径粉末への小径粉末の付着強
度が不十分となりやすかった。また両方法では、混合し
た後、加熱するという２段階で行なっているため、製造
効率が悪く、しかも一方が不十分に行なわれやすかっ
た。(Problems to be Solved by the Invention) However, in the method disclosed in Japanese Patent Publication No. 61-19583.
There is a possibility that the large-diameter powder and the small-diameter powder may not be dispersed homogeneously in the thermal spray material depending on the condition of the dusting. If a thermal spray material in which the large-diameter powder and the small-diameter powder are not homogeneously dispersed is used, there arises a problem that the physical properties of the coating obtained by thermal spraying vary depending on the location. In addition, JP-A-63-16
In the method described in Japanese Patent No. 9371, since a binder substance is used, it is troublesome and the adhesion strength of the small diameter powder to the large diameter powder tends to be insufficient. Further, in both methods, since the two steps of heating after mixing are performed, the production efficiency is poor, and one of them is apt to be insufficiently performed.
一方、金属ホウ化物の一種であるＴｉＢ2は、高融点
で、電気伝導性を有し、硬く、耐酸化性に優れているた
め、耐摩耗性材料、電極材料、耐食材料、耐熱材料等と
して利用しようとする要望が強かった。そこでＴｉ粉末
及びＢ粉末を混合して上記のような複合溶射材として用
いることを考えた。On the other hand, TiB 2 , which is a kind of metal boride, has a high melting point, electrical conductivity, is hard, and is excellent in oxidation resistance. Therefore, it is used as an abrasion resistant material, an electrode material, a corrosion resistant material, a heat resistant material, etc. There was a strong desire to use it. Therefore, it was considered to mix Ti powder and B powder and use them as a composite thermal spray material as described above.
本発明は、以上のようなことに鑑みてなされたものであ
り、Ｔｉ粉末がＢ粉末で被覆されてなる粉粒状のＴｉ・
Ｂ複合溶射材であってＴｉ粉末とＢ粉末とが均質に分散
したものを、容易かつ確実に製造することのできる方法
を提供するとともに、溶射に用いた場合に、ＴｉＢ2を
含有し物性がどの場所でも同質である皮膜を生成させる
ことのできるＴｉ・Ｂ複合溶射材を提供することを目的
とする。The present invention has been made in view of the above-mentioned circumstances, and is a granular Ti powder formed by coating Ti powder with B powder.
Provided is a method for easily and reliably producing a B composite thermal spraying material in which Ti powder and B powder are uniformly dispersed, and when used for thermal spraying, it contains TiB 2 and has physical properties It is an object of the present invention to provide a Ti / B composite thermal spray material capable of forming a coating of the same quality in any place.
（問題点を解決するための手段） 本発明のＴｉ・Ｂ複合溶射材の製造方法は、円筒状ケー
シング内に投入したＴｉ粉末及びＢ粉末を、回転するケ
ーシングの遠心力によってケーシング内周面に押付けて
ケーシング内周面に両粉末からなる層を形成し、ケーシ
ング内でケーシングに対して相対回転する掻取り片及び
圧縮片によって、上記層から両粉末を掻取って攪拌させ
るとともに両粉末をケーシング内周面との間で圧縮して
両粉末同志を熱溶着させるようにしたことを特徴とする
ものである。(Means for Solving Problems) In the method for producing a Ti / B composite thermal spray material of the present invention, Ti powder and B powder put in a cylindrical casing are applied to the inner peripheral surface of the casing by centrifugal force of a rotating casing. A layer consisting of both powders is formed by pressing on the inner peripheral surface of the casing, and both powders are scraped from the above layers by a scraping piece and a compression piece that rotate relative to the casing in the casing to stir and mix both powders with the casing. It is characterized in that both powders are compressed by thermal compression with the inner peripheral surface so that both powders are heat-welded together.
また本発明のＴｉ・Ｂ複合溶射材は、Ｔｉ粉末表面に多
数のＢ粉末が熱溶着されてＴｉ粉末がＢ粉末で被覆され
粉粒状となっており、Ｔｉ粉末とＢ粉末とが均質に分散
されていることを特徴とするものである。Further, in the Ti / B composite thermal spraying material of the present invention, a large number of B powders are heat-welded on the surface of the Ti powder, and the Ti powder is covered with the B powder to form a granular form, and the Ti powder and the B powder are uniformly dispersed. It is characterized by being.
（作用） 本発明のＴｉ・Ｂ複合溶射材の製造方法においては、Ｔ
ｉ粉末及びＢ粉末の攪拌と、両粉末の熱溶着とが同時に
行なわれる。(Operation) In the method for producing the Ti / B composite thermal spray material of the present invention, T
The i powder and the B powder are stirred and the two powders are heat-welded at the same time.
（実施例） 以下、本発明の実施例を図に基づいて説明する。第１図
は本発明の方法によって製造されたＴｉ・Ｂ複合溶射材
の一粒子の断面を示す写真、第２図は第１図を模式的に
示す図である。３１はＴｉ粉末、３２はＢ粉末であり、
Ｔｉ粉末３１の表面には多数のＢ粉末３２が溶着されて
おり、Ｔｉ粉末３１はＢ粉末３２により被覆されてい
る。Ｂ粉末３２はＴｉ粉末３１表面の凹部にまで入り込
んで溶着されている。Ｔｉ粉末３１としては例えば３８
〜４４μｍの粒径のものを、またＢ粉末３２としては例
えば平均粒径が０．８μｍのものを用いている。(Example) Hereinafter, the Example of this invention is described based on drawing. FIG. 1 is a photograph showing a cross section of one particle of the Ti / B composite thermal spray material produced by the method of the present invention, and FIG. 2 is a diagram schematically showing FIG. 31 is Ti powder, 32 is B powder,
A large number of B powders 32 are welded to the surface of the Ti powder 31, and the Ti powder 31 is covered with the B powder 32. The B powder 32 penetrates into the concave portion on the surface of the Ti powder 31 and is welded. As the Ti powder 31, for example, 38
The B powder 32 has an average particle size of 0.8 μm.
上記のようなＴｉ・Ｂ複合溶射材は第３図に示すような
混合装置を用いて製造する。第４図は第３図のIV−IV断
面矢視図である。これらの図において、４は底が塞がれ
た円筒状ケーシングであり、ケーシング４内に処理室３
となっている。ケーシング４は、その中央下側にて垂直
な回転軸２を介して駆動装置５に支持されており、駆動
装置５により水平面内にて回転するようになっている。
処理室３にはケーシング４と同心にて回転する圧縮片９
ａ及び掻取り片９ｂが設けられている。圧縮片９ａ及び
掻取り片９ｂは回転軸８ａの上端から水平方向に延びた
支持棒８ｂの先端に設けられており、両片９ａ、９ｂと
もケーシング４の内周面４ａに近接している。回転軸８
ａは中空である回転軸２内に回転軸２と同芯に設けられ
て駆動装置５に連結されており、両片９ａ、９ｂ、回転
軸８ａ、及び支持棒８ｂは駆動装置５に支持されてい
る。回転軸８ａの上端部８ｃは円錐状に上方に突出して
いる。駆動装置５は電動モータ５ａ、変速機５ｂを備え
ており、基台１上に設置されている。The Ti / B composite thermal spray material as described above is manufactured using a mixing apparatus as shown in FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. In these drawings, reference numeral 4 denotes a cylindrical casing having a closed bottom.
Has become. The casing 4 is supported by the drive device 5 via the vertical rotation shaft 2 on the lower side of the center thereof, and is rotated in the horizontal plane by the drive device 5.
The processing chamber 3 has a compression piece 9 that rotates concentrically with the casing 4.
a and a scraping piece 9b are provided. The compression piece 9a and the scraping piece 9b are provided at the tip of a support rod 8b extending horizontally from the upper end of the rotary shaft 8a, and both the pieces 9a and 9b are close to the inner peripheral surface 4a of the casing 4. Rotating shaft 8
a is provided in the hollow rotary shaft 2 concentrically with the rotary shaft 2 and connected to the drive device 5, and both pieces 9a, 9b, the rotary shaft 8a, and the support rod 8b are supported by the drive device 5. ing. The upper end 8c of the rotary shaft 8a projects upward in a conical shape. The drive device 5 includes an electric motor 5a and a transmission 5b, and is installed on the base 1.
圧縮片９ａ及び掻取り片９ｂはここでは３個ずつがそれ
ぞれ等間隔に配設されており、圧縮片９ａは掻取り片９
ｂのケーシング４の回転方向Ｒ（第４図）とは反対側に
掻取り片９ｂに近接して配置されている。圧縮片９ａに
は、ケーシング４の内周面４ａに対向し且つ内周面４ａ
に向かって凸の横断面円弧状の作用面９１が形成されて
いる。なお作用面９１に、ケーシング４の回転方向Ｒ側
ほど幅狭で浅くなる溝（図示せず）を設けてもよい。掻
取り片９ｂは、先端が尖るよう且つケーシング４の回転
方向Ｒ側に凸となるよう湾曲した横断面形状を有するよ
うに形成されている。即ち掻取り片９ｂには尖端９２、
内周面４ａに対向する作用面９３、作用面９３の背面側
の作用面９４が形成されている。Here, three compression pieces 9a and three scraping pieces 9b are arranged at equal intervals.
The casing 4 is located on the side opposite to the rotation direction R (FIG. 4) of the casing 4 and close to the scraping piece 9b. The compression piece 9a includes an inner peripheral surface 4a facing the inner peripheral surface 4a of the casing 4.
A working surface 91 having a circular arc cross-section that is convex toward is formed. In addition, a groove (not shown) may be provided on the operation surface 91 so as to become narrower and shallower toward the rotation direction R side of the casing 4. The scraping piece 9b is formed to have a cross-sectional shape with a sharp tip and a convex shape in the rotation direction R side of the casing 4. That is, the scraping piece 9b has a tip 92,
An action surface 93 facing the inner peripheral surface 4a and an action surface 94 on the back side of the action surface 93 are formed.
ケーシング４は基台１の両側の支柱１ａに支持された円
筒状のカバー７により包囲されており、カバー７は取外
し自在の蓋７ａにより上から塞がれている。カバー７の
下部には回転軸２との間に吸気口１３が形成され、蓋７
ａには排気パイプ１０が設けられており、回転軸２と共
に回転するファン１２により、空気が吸気口１３からケ
ーシング４とカバー７との間を通って排気パイプ１０か
ら排出されるようになっている。The casing 4 is surrounded by a cylindrical cover 7 supported by columns 1a on both sides of the base 1, and the cover 7 is closed from above by a removable lid 7a. An intake port 13 is formed below the cover 7 between the cover 7 and the rotary shaft 2, and
An exhaust pipe 10 is provided at a, and air is exhausted from the exhaust pipe 10 through an intake port 13 between the casing 4 and the cover 7 by a fan 12 that rotates together with the rotating shaft 2. There is.
蓋７ａの中央には処理室３に連通するパイプ１４が垂直
に貫通して設けられており、パイプ１４の下側開口は円
錐状部８ｃ上に位置している。パイプ１４には、Ｔｉ粉
末及びＢ粉末を一定量秤量して供給するためのフィーダ
１９と、パイプ１４に供給された両粉末の流れを良くす
るために適量の空気や不活性ガス等の搬送用ガスを送風
する送風機１８が連結されている。A pipe 14 communicating with the processing chamber 3 is vertically provided at the center of the lid 7a, and a lower opening of the pipe 14 is located on the conical portion 8c. The pipe 14 has a feeder 19 for measuring and supplying a fixed amount of Ti powder and B powder, and a carrier 19 for conveying an appropriate amount of air, an inert gas or the like to improve the flow of both powders supplied to the pipe 14. The blower 18 which blows gas is connected.
カバー７の周壁にはジャケット２５が形成されており、
また回転軸８ａ、支持体８ｂ、圧縮片９ａ、及び掻取り
片９ｂ内には通路２７が連通して形成されており、ジャ
ケット２５及び通路２７にはタンク２６内の加熱用又は
冷却用の媒体が流されるよう構成されている。通路２７
はロータリージョイント２４を介してタンク２６に連結
されている。A jacket 25 is formed on the peripheral wall of the cover 7,
A passage 27 is formed in communication with the rotary shaft 8a, the support 8b, the compression piece 9a, and the scraping piece 9b, and the jacket 25 and the passage 27 are provided with a medium for heating or cooling in the tank 26. Is designed to be washed away. Passage 27
Is connected to a tank 26 via a rotary joint 24.
上記混合装置によるＴｉ・Ｂ複合溶射材の製造は次のよ
うに行なわれる。Ｔｉ粉末３１及びＢ粉末３２は、フィ
ーダ１９にて一定量坪量されてパイプ１４（経路６）を
通って処理室３に供給される。例えば１モルのＴｉ粉末
３１に対して２モルのＢ粉末３２の割合で坪量される。
処理室３に供給された両粉末３１、３２は、駆動装置５
によってＲ方向（第４図）に高速で回転するケーシング
４の内周面４ａに、遠心力によって押付けられ、内周面
４ａには両粉末３１、３２からなる層が形成される。こ
のとき処理室３に供給される両粉末３１、３２は、パイ
プ１４の下側開口から円錐状部８ｃ上に落下し、円錐状
部８ｃの先端に衝突して周囲に略均等に分散されるた
め、内周面４ａに形成される層は略均一な厚さとなる。The Ti / B composite thermal spray material is manufactured by the above mixing apparatus as follows. The Ti powder 31 and the B powder 32 are supplied to the processing chamber 3 through the pipe 14 (path 6) after having a fixed basis weight by the feeder 19. For example, the basis weight is 1 mole of Ti powder 31 and 2 moles of B powder 32.
Both powders 31 and 32 supplied to the processing chamber 3 are driven by the drive unit 5.
By the centrifugal force, the inner peripheral surface 4a of the casing 4 rotating at a high speed in the R direction (Fig. 4) is pressed by a centrifugal force, and a layer composed of both powders 31 and 32 is formed on the inner peripheral surface 4a. At this time, both powders 31 and 32 supplied to the processing chamber 3 drop onto the conical portion 8c from the lower opening of the pipe 14, collide with the tip of the conical portion 8c, and are dispersed substantially evenly around the periphery. Therefore, the layer formed on the inner peripheral surface 4a has a substantially uniform thickness.
圧縮片９ａ及び掻取り片９ｂは駆動装置５によってケー
シング４の回転速度より少し遅い速度でＲ方向に回転さ
れ、内周面４ａに形成された両粉末３１、３２からなる
層から両粉末３１、３２が掻取り片９ｂによって掻取ら
れ、攪拌されるとともに、両粉末３１、３２は圧縮片９
ａによって内周面４ａとの間に圧縮される。即ち掻取り
片９ｂによる掻取りによって両粉末３１、３２の攪拌は
促進され、圧縮片９ａによる圧縮によって摩擦熱が生じ
て両粉末３１、３２は熱溶着され且つ粉粒状に造粒され
る。しかも両分圧３１、３２の攪拌と熱溶着とが、一装
置内で同時に行なわれる。内周面４ａに形成される層は
略均一な厚さとなっているから、圧縮片９ａ及び掻取り
片９ｂによる作用はどの箇所においても略均等に行なわ
れる。なおケーシング４、及び圧縮片９ａ、掻取り片９
ｂの回転速度は、混合するＴｉ粉末３１及びＢ粉末３２
の量、粒径等に応じて変速機５ｂにより設定する。また
装置稼動中には、装置を適切な温度に保べく、ジャケッ
ト２５及び通路２７にタンク２６から加熱用又は冷却用
の媒体を適宜流す。The compression piece 9a and the scraping piece 9b are rotated in the R direction by the driving device 5 at a speed slightly lower than the rotation speed of the casing 4, and the powder 31 and the powder 31 are formed on the inner peripheral surface 4a. 32 is scraped off by the scraping piece 9b and stirred, and both powders 31 and 32 are compressed by the compression piece 9b.
It is compressed between the inner peripheral surface 4a and a. That is, the scraping by the scraping piece 9b promotes the agitation of both powders 31, 32, and the compression by the compressing piece 9a generates frictional heat, whereby the powders 31, 32 are heat-welded and granulated into powder particles. Moreover, both partial pressures 31 and 32 are agitated and heat welded simultaneously in one device. Since the layer formed on the inner peripheral surface 4a has a substantially uniform thickness, the action of the compression piece 9a and the scraping piece 9b is performed substantially uniformly at any position. The casing 4, the compression piece 9a, and the scraping piece 9
The rotation speed of b is the Ti powder 31 and the B powder 32 to be mixed.
Is set by the transmission 5b according to the amount, particle size, etc. Further, during the operation of the apparatus, a heating or cooling medium is appropriately flowed from the tank 26 to the jacket 25 and the passage 27 in order to keep the apparatus at an appropriate temperature.
なお両粉末３１、３２を処理室３に供給する際に、必要
であれば送風機１８から搬送用ガスをパイプ１４に送風
する。またケーシング４と、圧縮片９ａ及び掻取り片９
ｂとの回転方向は逆にしてもよい。When supplying both powders 31 and 32 to the processing chamber 3, a blower 18 blows a carrier gas to the pipe 14 if necessary. In addition, the casing 4, the compression piece 9a and the scraping piece 9
The direction of rotation with respect to b may be reversed.
以上のようにして第１図及び第２図に示すような粉粒状
のＴｉ・Ｂ複合溶射材が得られる。上記方法によれば、
両粉末３１、３２の攪拌と熱溶着とが、一装置内で同時
に行なわれるので、Ｔｉ粉末３１表面に多くのＢ粉末３
２が十分に接触することとなり、Ｔｉ・Ｂ複合溶射材中
におけるＴｉ粉末３１とＢ粉末３２の分散は均質なもの
となる。しかも混合した後に加熱するという２段階では
なく、１段階で行なわれるので、容易であり、製造効率
も良好となる。そして上記方法で得られたＴｉ・Ｂ複合
溶射材は、溶射材中におけるＴｉ粉末３１とＢ粉末３２
の分散が均質であるので、溶射に用いた場合に、ＴｉＢ
2を含有し物性がどの場所でも同質である皮膜を生成さ
せることができる。As described above, the powdery granular Ti / B composite thermal spray material as shown in FIGS. 1 and 2 is obtained. According to the above method,
Since both powders 31 and 32 are agitated and heat-welded simultaneously in one apparatus, a large amount of B powder 3 is formed on the surface of the Ti powder 31.
Thus, the Ti powder 31 and the B powder 32 are uniformly dispersed in the Ti / B composite thermal spray material. Moreover, since the heating is performed in one step rather than in two steps of mixing and then heating, it is easy and the manufacturing efficiency is good. Then, the Ti / B composite thermal spray material obtained by the above-mentioned method has a Ti powder 31 and a B powder 32 in the thermal spray material.
Is homogeneous, so when used for thermal spraying, TiB
It is possible to form a film containing 2 and having the same physical properties everywhere.
（発明の効果） 以上のように本発明のＴｉ・Ｂ複合溶射材の製造方法に
よれば、円筒状ケーシング４内に投入したＴｉ粉末３１
及びＢ粉末３２を、回転するケーシング４の遠心力によ
って内周面４ａに押付けて内周面４ａに両粉末３１、３
２からなる層を形成し、ケーシング４内でケーシング４
に対して相対回転する掻取り片９ｂ及び圧縮片９ａによ
って、上記層から両粉末３１、３２を掻取って攪拌させ
るとともに両粉末３１、３２を内周面４ａとの間で圧縮
して両粉末３１、３２同志を熱溶着させるようにしたの
で、Ｔｉ粉末３１とＢ粉末３２の分散が均質であるＴｉ
・Ｂ複合溶射材を、容易に、しかも製造効率良く得るこ
とができる。(Effects of the Invention) As described above, according to the method for manufacturing a Ti / B composite thermal spray material of the present invention, the Ti powder 31 charged into the cylindrical casing 4 is used.
And the B powder 32 are pressed against the inner peripheral surface 4a by the centrifugal force of the rotating casing 4, and both powders 31, 3 are attached to the inner peripheral surface 4a.
A layer consisting of 2 and forming a casing 4 inside the casing 4.
By the scraping piece 9b and the compressing piece 9a that rotate relative to each other, both powders 31 and 32 are scraped from the above layer and stirred, and both powders 31 and 32 are compressed between the inner peripheral surface 4a and both powders 31 and 32. Since 31 and 32 are heat-welded to each other, Ti powder 31 and B powder 32 have a uniform dispersion.
-B composite thermal spray material can be easily obtained with high production efficiency.
また本発明のＴｉ・Ｂ複合溶射材によれば、Ｔｉ粉末３
１表面に多数のＢ粉末３２が熱溶着されてＴｉ粉末３１
がＢ粉末３２で被覆され粉粒状となっており、Ｔｉ粉末
３１とＢ粉末３２とが均質に分散されているので、溶射
に用いた場合に、ＴｉＢ2を含有し物性がどの場所でも
同質である皮膜を生成させることができる。Further, according to the Ti / B composite thermal spray material of the present invention, Ti powder 3
A number of B powders 32 are heat-welded on one surface to form Ti powder 31.
Is coated with B powder 32 to form a powdery granule, and Ti powder 31 and B powder 32 are uniformly dispersed. Therefore, when used for thermal spraying, TiB 2 is contained and the physical properties are the same at any place. A film can be produced.
（別の実施例） 圧縮片９ａや掻取り片９ｂは、ケーシング４の内周面４
ａに接触しない範囲で、流体圧やスプリング等で内周面
４ａ側に付勢してもよい。これによれば圧縮、掻取りを
強力に行なうことができる。(Other Embodiments) The compression piece 9a and the scraping piece 9b are provided on the inner peripheral surface 4 of the casing 4.
The pressure may be applied to the inner peripheral surface 4a side by fluid pressure, a spring, or the like within a range that does not contact a. According to this, compression and scraping can be performed strongly.
また圧縮片９ａや掻取り片９ｂは３個に限るものではな
く、形状、材質等も機能を損なわない範囲で変更しても
よい。Further, the number of the compression pieces 9a and the scraping pieces 9b is not limited to three, and the shape, material, etc. may be changed within a range that does not impair the function.
第１図は本発明のＴｉ・Ｂ複合溶射材の製造方法によっ
て製造されたＴｉ・Ｂ複合溶射材の一粒子の断面を示す
写真、第２図は第１図を模式的に示す図、第３図は本発
明の製造方法の実施に用いられる混合装置を示す縦断面
略図、第４図は第３図のIV−IV断面矢視図である。４…
ケーシング、４ａ…内周面、９ａ…圧縮片、９ｂ…掻取
り片、３１…Ｔｉ粉末、３２…Ｂ粉末FIG. 1 is a photograph showing a cross section of one particle of a Ti / B composite thermal spray material produced by the method for producing a Ti / B composite thermal spray material of the present invention, and FIG. 2 is a diagram schematically showing FIG. FIG. 3 is a schematic vertical sectional view showing a mixing apparatus used for carrying out the manufacturing method of the present invention, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. 4 ...
Casing, 4a ... Inner peripheral surface, 9a ... Compressed piece, 9b ... Scraping piece, 31 ... Ti powder, 32 ... B powder
Claims (2)
Ｔｉ粉末をＢ粉末で被覆してなる粉粒状のＴｉ・Ｂ複合
溶射材を製造する方法であって、円筒状ケーシング内に
投入したＴｉ粉末及びＢ粉末を、回転するケーシングの
遠心力によってケーシング内周面に押付けてケーシング
内周面に両粉末からなる層を形成し、ケーシング内でケ
ーシングに対して相対回転する掻取り片及び圧縮片によ
って、上記層から両粉末を掻取って攪拌させるとともに
両粉末をケーシング内周面との間で圧縮して両粉末同志
を熱溶着させるようにしたことを特徴とするＴｉ・Ｂ複
合溶射材の製造方法。1. A method for producing a powdery granular Ti / B composite thermal spray material, which comprises depositing a large number of B powders on the surface of Ti powders and coating the Ti powders with the B powders, which is introduced into a cylindrical casing. The Ti powder and the B powder are pressed against the inner peripheral surface of the casing by the centrifugal force of the rotating casing to form a layer made of both powders on the inner peripheral surface of the casing, and a scraping piece that rotates relative to the casing in the casing and Both powders are scraped from the above layer by a compression piece and stirred, and both powders are compressed between the powder and the inner peripheral surface of the casing so that both powders are thermally welded to each other. Method of manufacturing wood.
てＴｉ粉末がＢ粉末で被覆され粉粒状となっており、Ｔ
ｉ粉末とＢ粉末とが均質に分散されていることを特徴と
するＴｉ・Ｂ複合溶射材。2. A large number of B powders are heat-welded on the surface of the Ti powders, and the Ti powders are covered with the B powders to form powder particles.
A Ti / B composite thermal spray material characterized in that i powder and B powder are uniformly dispersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2298656A JPH0647713B2 (en) | 1990-11-02 | 1990-11-02 | Method for producing Ti / B composite thermal spray material and Ti / B composite thermal spray material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2298656A JPH0647713B2 (en) | 1990-11-02 | 1990-11-02 | Method for producing Ti / B composite thermal spray material and Ti / B composite thermal spray material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04173948A JPH04173948A (en) | 1992-06-22 |
| JPH0647713B2 true JPH0647713B2 (en) | 1994-06-22 |
Family
ID=17862561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2298656A Expired - Fee Related JPH0647713B2 (en) | 1990-11-02 | 1990-11-02 | Method for producing Ti / B composite thermal spray material and Ti / B composite thermal spray material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647713B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015077016A1 (en) * | 2013-11-25 | 2015-05-28 | United Technologies Corporation | Method of manufacturing a hybrid cylindral structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011058071A (en) * | 2009-09-11 | 2011-03-24 | Sony Corp | Composite particulate preparing apparatus and method |
-
1990
- 1990-11-02 JP JP2298656A patent/JPH0647713B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015077016A1 (en) * | 2013-11-25 | 2015-05-28 | United Technologies Corporation | Method of manufacturing a hybrid cylindral structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04173948A (en) | 1992-06-22 |
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