JP2009022849A - Cutting flake of titanium material having titanium dioxide film formed on surface - Google Patents
Cutting flake of titanium material having titanium dioxide film formed on surface Download PDFInfo
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- JP2009022849A JP2009022849A JP2007186906A JP2007186906A JP2009022849A JP 2009022849 A JP2009022849 A JP 2009022849A JP 2007186906 A JP2007186906 A JP 2007186906A JP 2007186906 A JP2007186906 A JP 2007186906A JP 2009022849 A JP2009022849 A JP 2009022849A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000005520 cutting process Methods 0.000 title claims abstract description 56
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 title claims abstract description 34
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 25
- 239000010936 titanium Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000001699 photocatalysis Effects 0.000 claims abstract description 9
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 244000052616 bacterial pathogen Species 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011941 photocatalyst Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 239000010730 cutting oil Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
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- 229920005989 resin Polymers 0.000 description 2
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- 235000006886 Zingiber officinale Nutrition 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 235000008397 ginger Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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Abstract
Description
本発明はチタン材を切削することにより発生する切削片を利用し、この表面に二酸化チタン被膜を形成した切削片に関するものである。 The present invention relates to a cutting piece using a cutting piece generated by cutting a titanium material and having a titanium dioxide film formed on this surface.
二酸化チタンの粉末は光触媒として色々なところで利用されている。例えば、ガラス、セメント、壁紙、石こうボード、石材、プラスチックなどの表面に二酸化チタン含有塗膜を形成するならば、汚れが付着しても、太陽光が当ることで該汚れは分解される。又、空気中の汚れや雑菌を分解したり、水中の汚れや雑菌を分解する為にも光触媒効果が利用されている。 Titanium dioxide powder is used in various places as a photocatalyst. For example, if a titanium dioxide-containing coating film is formed on the surface of glass, cement, wallpaper, gypsum board, stone material, plastic, etc., even if dirt is attached, the dirt is decomposed by exposure to sunlight. The photocatalytic effect is also used for decomposing dirt and germs in the air and for decomposing dirt and germs in water.
二酸化チタンはそれ自体が光半導体であり、そのバンドギャップ以上のエネルギーを持つ光、例えば紫外線で照射されると伝導帯には電子が集積し、価電子帯には正孔が生じる。この集積電子及び正孔によって生じる電子移動に基づく酸化還元作用により大気中の有機物を分解し、殺菌効果を示すという光触媒活性が工業的に利用されている。 Titanium dioxide is an optical semiconductor itself, and when irradiated with light having energy greater than its band gap, such as ultraviolet rays, electrons accumulate in the conduction band and holes are generated in the valence band. The photocatalytic activity of decomposing organic substances in the atmosphere by an oxidation-reduction action based on the electron transfer generated by the accumulated electrons and holes and showing a bactericidal effect is industrially used.
ところで、二酸化チタン層を基材の表面に形成させる事はなかなか困難である。従来行われている方法は一つには純チタン板状体の表面を空気酸化または陽極酸化して二酸化チタン膜を形成することが出来る。しかし、この酸化方法が難しい割に良好な機能が得られにくい。又、基材表面に二酸化チタンを蒸着させたり、プラズマ溶射を行う方法も知られているが、何れもコストが高く、しかも基材の種類によって適用する事が出来ない。 By the way, it is quite difficult to form a titanium dioxide layer on the surface of a base material. One conventional method is to form a titanium dioxide film by subjecting the surface of a pure titanium plate to air oxidation or anodization. However, although this oxidation method is difficult, it is difficult to obtain a good function. Also known are methods of depositing titanium dioxide on the surface of the base material or performing plasma spraying, but they are all expensive and cannot be applied depending on the type of base material.
また、二酸化チタン粉末をバインダーと呼ばれる樹脂や接着剤を介して基材に接着する試みもなされているが、二酸化チタンの光触媒作用によりバインダーが酸化分解され、数カ月の後には基材から脱落してしまいといった問題が発生する。勿論、樹脂や接着剤などにて二酸化チタン表面を覆ってしまうことから、光触媒作用は必然的に低下する。 Attempts have also been made to bond titanium dioxide powder to the substrate through a resin called a binder or an adhesive, but the binder is oxidized and decomposed by the photocatalytic action of titanium dioxide, and after several months it falls off the substrate. The problem of end occurs. Of course, since the surface of titanium dioxide is covered with a resin or an adhesive, the photocatalytic action is inevitably lowered.
特開２００４−２６７９７７号に係る「水質浄化装置」は、閉鎖水域の水面に浮揚する水中ポンプにより水処理接触材層及び光触媒層を通して水を噴出する水質浄化装置であり、水中ポンプの吸水により、ため池内の水は水処理接触材層及び光触媒層を通って吸引されるため、水処理接触材層にて水中の汚濁物質が接触材に付着した微生物により分解され、そして光触媒層により、微生物で分解できなかった難分解性有機物が、光媒体の強力な酸化作用にて分解されるように成っている。 The “water purification device” according to Japanese Patent Application Laid-Open No. 2004-267777 is a water purification device that ejects water through a water treatment contact material layer and a photocatalyst layer by a submersible pump that floats on the surface of a closed water area. Since the water in the pond is sucked through the water treatment contact material layer and the photocatalyst layer, pollutants in the water are decomposed by the microorganisms adhering to the contact material in the water treatment contact material layer, and by the photocatalyst layer, The hard-to-decompose organic matter that could not be decomposed is decomposed by the strong oxidizing action of the optical medium.
特開２００６−１１０４７０号に係る「水質浄化剤」は、長期間に亘る安定した消臭・吸着能力を発現し得るのであり、又、観賞魚用水槽などの水槽、水族館、料理店や魚介類販売店などの生簀、堀、観賞池などの池又は金魚鉢における淡水中或いは海水中に投入するだけで、アオコなどの微細な藍藻（ランソウ）類や緑藻類更に珪藻や苔類又は細菌更に微生物に対する対策が極めて簡単に行えるのであり、従って、水を浄化して透明度を向上させることができる。
そこで、この水質浄化剤は、多孔質担体の表面部に、特定且つ特異な手段により、光触媒の被膜を形成・担持させた構造としている。
The “water purification agent” according to Japanese Patent Application Laid-Open No. 2006-110470 can express a stable deodorization / adsorption ability over a long period of time, and is also an aquarium such as an aquarium for aquarium fish, an aquarium, a restaurant, and a seafood. Just put it in fresh water or seawater in a pond such as a ginger, a moat, an ornamental pond, etc. or a fishbowl in a fishbowl. Therefore, it is possible to improve the transparency by purifying water.
Therefore, this water purification agent has a structure in which a photocatalyst film is formed and supported on the surface of the porous carrier by a specific and specific means.
このように、水質を浄化する為に光触媒効果が利用されている。勿論、水質浄化には昔から活性炭が利用され、該活性炭が備えている無数の微細孔に不純物が侵入して付着することで、水に含まれる不純物が取り除かれる。
このように、二酸化チタン粉末は光触媒作用として非常に効果があるが、上記のごとき問題がある。本発明が解決しようとする課題は製作が簡単で、コストが安くなるように、表面に二酸化チタン被膜を形成したチタン材の切削片を提供する。本発明はこのチタン材の切削片を用いて水中や空気中の汚れ及び不純物を除去する訳であるが、その具体的な適用分野は限定しないことにする。 Thus, although titanium dioxide powder is very effective as a photocatalytic action, there are problems as described above. The problem to be solved by the present invention is to provide a cut piece of titanium material having a titanium dioxide film formed on the surface so that the production is simple and the cost is low. Although the present invention removes dirt and impurities in water and air using the cut piece of titanium material, the specific application field is not limited.
本発明はチタン材の切削片を使用し、この表面に二酸化チタン被膜を形成するものである。該切削片は旋盤などの工作機械を用いてチタン材を切削することで作られ、これを不活性雰囲気内で加熱し、その後、冷却するならば、切削片の表面には二酸化チタン被膜が形成される。すなわち、光触媒特性を備えた切削片が得られる。ここで、上記切削片の形状、大きさなどは限定しないことにする。 The present invention uses a cut piece of titanium material and forms a titanium dioxide film on this surface. The cutting piece is made by cutting a titanium material using a machine tool such as a lathe, and if this is heated in an inert atmosphere and then cooled, a titanium dioxide film is formed on the surface of the cutting piece. Is done. That is, a cutting piece having photocatalytic properties can be obtained. Here, the shape and size of the cutting piece are not limited.
チタン材を切削して作られる切削片は、一般に異形断面の螺旋状となり、その表面は細かい凹凸形状を成している。そして、切削片の稜線は鋭利な鋸刃形状突起と成っているが、表面の細かい凹凸化により、二酸化チタン被膜の表面積は大きく、大気中及び水中に於ける紫外線や超音波を捕捉できる接触効率が向上する。従来の二酸化チタン被膜は、平滑な純チタンや他の基材表面に塗布・焼成などの方法が採られているが、剥離脱落する虞がある。 A cutting piece made by cutting a titanium material generally has a spiral shape with an irregular cross section, and the surface thereof has a fine uneven shape. The ridgeline of the cutting piece is a sharp saw blade-shaped protrusion, but the surface area of the titanium dioxide coating is large due to the fine surface irregularity, and the contact efficiency that can capture ultraviolet rays and ultrasonic waves in the air and water Will improve. Conventional titanium dioxide coatings have been applied to smooth pure titanium or other substrate surfaces such as coating and firing, but there is a risk of peeling off.
本発明の二酸化チタン被膜は母材であるチタン材表面を酸化して作られる為に強固で安定する。そして、切削片の表面に二酸化チタン被膜を形成する方法は、手軽でコスト的には非常に安くなる。すなわち、切削片は細くて薄いために、瞬時に加熱され、又冷却も短時間で行うことが出来ることから、製作コストは安くなり、材料である切削片そのものが特別に作らなくても安価に得られる。 The titanium dioxide coating of the present invention is strong and stable because it is formed by oxidizing the surface of a titanium material as a base material. And the method of forming a titanium dioxide film on the surface of the cutting piece is easy and very cheap in terms of cost. In other words, since the cutting piece is thin and thin, it can be heated instantaneously and can be cooled in a short time, so the manufacturing cost is low, and even if the cutting piece itself is not specially made, it is inexpensive. can get.
図１はチタン材の切削片１を表している具体例である。この切削片１は旋盤にて切削された切削片１であり、螺旋状を成している。螺旋の直径Ｄ及びピッチＰは切削されるチタン材の直径及びバイト（工具）の送り速度、切込み深さなどによって変化する。本発明では切削片１の直径ＤやピッチＰ、及び切削片の形状・太さ（厚さ、幅）に関しては限定しない。 FIG. 1 is a specific example showing a cut piece 1 of titanium material. The cutting piece 1 is a cutting piece 1 cut by a lathe and has a spiral shape. The diameter D and the pitch P of the helix vary depending on the diameter of the titanium material to be cut, the feed speed of the cutting tool (tool), the cutting depth, and the like. In the present invention, the diameter D and pitch P of the cutting piece 1 and the shape and thickness (thickness and width) of the cutting piece are not limited.
図２は図１のＡ部拡大図である。切削片１はほぼ一定断面を成してチタン材から削り出されるが、その表面２は細かい凹凸面３を呈し、稜線４は鋭利な鋸刃形状と成っている。従って、切削片１の実質的な表面積は見掛けの表面積に比べて非常に大きくなっている。本発明はチタン材を切削することにより発生する切削片１を用いてその表面２に二酸化チタン被膜を形成している。 FIG. 2 is an enlarged view of part A of FIG. The cutting piece 1 has a substantially constant cross section and is cut out from a titanium material. The surface 2 has a fine uneven surface 3 and the ridge line 4 has a sharp saw blade shape. Therefore, the substantial surface area of the cutting piece 1 is very large compared to the apparent surface area. In the present invention, a titanium dioxide film is formed on the surface 2 of a cutting piece 1 generated by cutting a titanium material.
図３は切削片１の断面拡大図を表している。同図の切削片１の断面は概略平行四辺形を成しているが、切削片１の表面には薄い二酸化チタン被膜５が形成している。この二酸化チタン被膜５は二酸化チタンの粉末を接着剤にて固着して形成するものではなく、切削片１の表面を酸化することで作られる被膜であり、後で剥離したり、脱落することはない。 FIG. 3 shows an enlarged cross-sectional view of the cutting piece 1. The cross section of the cutting piece 1 shown in FIG. 1 has a substantially parallelogram shape, but a thin titanium dioxide film 5 is formed on the surface of the cutting piece 1. This titanium dioxide film 5 is not formed by fixing titanium dioxide powder with an adhesive, but is a film formed by oxidizing the surface of the cutting piece 1 and can be peeled off or dropped off later. Absent.
ところで、本発明では、上記に二酸化チタン被膜５を形成する作業工程は特に限定しないが、１例を挙げると次の通りである。
（１）チタン材の切削
丸棒のチタン材を切削することで螺旋状に連続した切削片１が発生する。勿論、切削片１の形状は必ずしも長い螺旋状に限るものではない。そして、前記したように、切削片１の外径Ｄ、ピッチＰ、太さは自由である。
（２）洗浄工程
チタン材を切削する場合、一般には切削油が使用される。これは、工具であるバイトを冷却する為であり、又切削される切削片１とバイト間の摩擦を低減する為でもある。ここで、切削油にも色々あるが特に限定はせず、切削片１の表面２には使用する切削油が必然的に付着する為に、この切削油は洗い落とされる。勿論、切削油を用いないでチタン材を切削する場合には、この洗浄工程を省くこともある。
（３）不活性雰囲気内で加熱処理
洗浄された切削片１は不活性雰囲気内で加熱される。加熱温度は４５０℃以上とし、好ましくは６００℃以上がよい。螺旋状の細くて薄い切削片１は瞬時に加熱される為に、加熱に要する熱エネルギーは少なくて済む。
（４）冷却工程
加熱された切削片１は冷却されるが、この場合も、細くて薄い螺旋状の切削片１は短時間で冷却される。冷却されることで、酸素と結び付いて酸化され、切削片１の表面２は二酸化チタン５にて被覆される。すなわち、表面２には二酸化チタン被膜５が形成される。
By the way, in this invention, although the work process which forms the titanium dioxide film 5 in the above is not specifically limited, It will be as follows when an example is given.
(1) Cutting of titanium material By cutting the titanium material of the round bar, a spirally cut piece 1 is generated. Of course, the shape of the cutting piece 1 is not necessarily limited to a long spiral. And as above-mentioned, the outer diameter D, the pitch P, and thickness of the cutting piece 1 are free.
(2) Cleaning process When cutting titanium material, cutting oil is generally used. This is for cooling the cutting tool, which is a tool, and also for reducing friction between the cutting piece 1 to be cut and the cutting tool. Here, there are various types of cutting oil, but there is no particular limitation. Since the cutting oil to be used is necessarily attached to the surface 2 of the cutting piece 1, the cutting oil is washed away. Of course, when the titanium material is cut without using cutting oil, this cleaning step may be omitted.
(3) The cutting piece 1 subjected to the heat treatment and cleaning in the inert atmosphere is heated in the inert atmosphere. The heating temperature is 450 ° C. or higher, preferably 600 ° C. or higher. Since the spiral thin and thin cutting piece 1 is heated instantaneously, less heat energy is required for heating.
(4) Cooling process Although the heated cutting piece 1 is cooled, the thin and thin spiral cutting piece 1 is also cooled in a short time. By being cooled, it is combined with oxygen and oxidized, and the surface 2 of the cutting piece 1 is coated with titanium dioxide 5. That is, the titanium dioxide film 5 is formed on the surface 2.
図４は本発明の二酸化チタン被膜５を形成した切削片１（同図の■）と二酸化チタン被膜５を有さない切削片１（同図の◆）とのメチレンブルー透過率比較を表している。この比較テストでの条件は次の通りである。 FIG. 4 shows a methylene blue transmittance comparison between the cutting piece 1 (■ in the figure) on which the titanium dioxide film 5 of the present invention is formed and the cutting piece 1 without the titanium dioxide film 5 (♦ in the figure). . The conditions in this comparative test are as follows.
処理液量・・・・・・５０リットル
循環流量・・・・・・３１リットル／分
メチレンブルー濃度・０．５ｇ／５０リットル
ＵＶランプ照射・・・１５Ｗ
経過時間が３０分までは両者に大きな違いはないが、３０分を過ぎると二酸化チタン被膜５を形成した切削片１の場合は、光触媒の効果を発揮して透過率は向上する。１８０分を過ぎると約２０％の開きが生じる。同図から明らかなように、螺旋状のチタン製切削片１は、表面２には細かい凹凸面３が形成されており、そのままでも透過率を向上させる効果は備わっている。
Treatment liquid volume: 50 liters Circulation flow rate: 31 liters / minute Methylene blue concentration: 0.5 g / 50 liters UV lamp irradiation: 15 W
Although the elapsed time is not significantly different up to 30 minutes, in the case of the cut piece 1 on which the titanium dioxide film 5 is formed after 30 minutes, the effect of the photocatalyst is exhibited and the transmittance is improved. After 180 minutes, an opening of about 20% occurs. As is apparent from the figure, the spiral titanium cutting piece 1 has a fine uneven surface 3 formed on the surface 2 and has an effect of improving the transmittance even if it is left as it is.
図５は（財）北陸保健衛生研究所にて測定した殺菌（大腸菌群）の減少効果を示している。テスト条件は次の通りである。 FIG. 5 shows the effect of reducing sterilization (coliform bacteria) measured by the Hokuriku Health Institute. The test conditions are as follows.
処理液量・・・・・・３００リットル
循環流量・・・・・・３１リットル／分
ＵＶランプ照射・・・１５Ｗ
超音波照射
最初、１ミリリットルの水中に３００００個の大腸菌群が存在しているが、時間の経過と共に大腸菌群の個数は減少し、１８０分が経過すれば０〜２になる。すなわち、二酸化チタン被膜を形成した切削片１を配置して処理液を循環させることで、大腸菌群は死滅する。
Treatment liquid volume: 300 liters Circulation flow rate: 31 liters / minute UV lamp irradiation: 15 W
Ultrasound Irradiation Initially, there are 30000 coliforms in 1 milliliter of water, but the number of coliforms decreases with the passage of time and becomes 0-2 after 180 minutes. That is, the coliform group is killed by arranging the cutting piece 1 on which the titanium dioxide film is formed and circulating the treatment liquid.
１ 切削片
２ 表面
３ 凹凸面
４ 稜線
５ 二酸化チタン被膜
DESCRIPTION OF SYMBOLS 1 Cutting piece 2 Surface 3 Uneven surface 4 Ridge line 5 Titanium dioxide coating
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| Application Number | Priority Date | Filing Date | Title |
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| JP2007186906A JP5069963B2 (en) | 2007-07-18 | 2007-07-18 | Cutting piece of titanium material with titanium dioxide coating on the surface |
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| JP2007186906A JP5069963B2 (en) | 2007-07-18 | 2007-07-18 | Cutting piece of titanium material with titanium dioxide coating on the surface |
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| JP2009022849A true JP2009022849A (en) | 2009-02-05 |
| JP5069963B2 JP5069963B2 (en) | 2012-11-07 |
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| JP2007186906A Expired - Fee Related JP5069963B2 (en) | 2007-07-18 | 2007-07-18 | Cutting piece of titanium material with titanium dioxide coating on the surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010227838A (en) * | 2009-03-27 | 2010-10-14 | Onomori:Kk | Water purifying apparatus |
| JP5688588B1 (en) * | 2014-07-16 | 2015-03-25 | Ｐｐｓ株式会社 | Titanium oxide water purification body, method for producing the titanium oxide water purification body, and water purification method using the titanium oxide water purification body |
| JP5717264B1 (en) * | 2014-10-10 | 2015-05-13 | Ｐｐｓ株式会社 | Titanium oxide water purification body, method for producing the titanium oxide water purification body, and water purification method using the titanium oxide water purification body |
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| JPH059701A (en) * | 1991-07-04 | 1993-01-19 | Nkk Corp | Method for cutting titanium material |
| JPH11138385A (en) * | 1997-11-13 | 1999-05-25 | Enshu Ltd | Grinding method for titanium and magnesium by uncombustible gas |
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| JP2006007049A (en) * | 2004-06-23 | 2006-01-12 | Kikusui Forging Co-Op | Adsorbing/decomposing agent |
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| JPH059701A (en) * | 1991-07-04 | 1993-01-19 | Nkk Corp | Method for cutting titanium material |
| JPH11197988A (en) * | 1997-10-20 | 1999-07-27 | Enshu Ltd | Cutting method for metallic material and the like in noncombustible gas environment |
| JPH11138385A (en) * | 1997-11-13 | 1999-05-25 | Enshu Ltd | Grinding method for titanium and magnesium by uncombustible gas |
| JP2000199174A (en) * | 1999-01-11 | 2000-07-18 | Asahi Chem Ind Co Ltd | Metal yarn and yarn processed article |
| JP2002035600A (en) * | 2000-07-28 | 2002-02-05 | Toto Ltd | Photocatalyst member and manufacturing method therefor |
| JP2004195435A (en) * | 2002-12-20 | 2004-07-15 | Shinei:Kk | Water cleaning agent and method of cleaning water using the same |
| JP2004299998A (en) * | 2003-03-31 | 2004-10-28 | National Institute Of Advanced Industrial & Technology | Recycling method for titanium metal-containing waste, titanium oxide coating liquid and its preparation method, and titanium oxide member |
| JP2006007049A (en) * | 2004-06-23 | 2006-01-12 | Kikusui Forging Co-Op | Adsorbing/decomposing agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010227838A (en) * | 2009-03-27 | 2010-10-14 | Onomori:Kk | Water purifying apparatus |
| JP5688588B1 (en) * | 2014-07-16 | 2015-03-25 | Ｐｐｓ株式会社 | Titanium oxide water purification body, method for producing the titanium oxide water purification body, and water purification method using the titanium oxide water purification body |
| JP5717264B1 (en) * | 2014-10-10 | 2015-05-13 | Ｐｐｓ株式会社 | Titanium oxide water purification body, method for producing the titanium oxide water purification body, and water purification method using the titanium oxide water purification body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5069963B2 (en) | 2012-11-07 |
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