JPH03257151A - Surface hardening treatment of titanium material and cemented carbide by paste method - Google Patents
Surface hardening treatment of titanium material and cemented carbide by paste methodInfo
- Publication number
- JPH03257151A JPH03257151A JP5732990A JP5732990A JPH03257151A JP H03257151 A JPH03257151 A JP H03257151A JP 5732990 A JP5732990 A JP 5732990A JP 5732990 A JP5732990 A JP 5732990A JP H03257151 A JPH03257151 A JP H03257151A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- borate
- paste
- treated
- superhard
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000010936 titanium Substances 0.000 title claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 10
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 10
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 239000000945 filler Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052796 boron Inorganic materials 0.000 abstract description 6
- 229910021538 borax Inorganic materials 0.000 abstract description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 5
- 235000010339 sodium tetraborate Nutrition 0.000 abstract description 5
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004606 Fillers/Extenders Substances 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 150000003863 ammonium salts Chemical class 0.000 abstract description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000292 calcium oxide Substances 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 13
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 238000005885 boration reaction Methods 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- WEQHQGJDZLDFID-UHFFFAOYSA-J thorium(iv) chloride Chemical compound Cl[Th](Cl)(Cl)Cl WEQHQGJDZLDFID-UHFFFAOYSA-J 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（イ） 産業上の利用分野
本発明ではチタン材とはチタン（Ｔ ｉ ）及びチタン
合金（Ｔｉ合金）を指す。本発明はチタン材及び超硬合
金の表面硬化処理法に関するものである。本発明により
得られた表面は極めて硬く、しかも耐摩耗性、耐食性、
高強度、軽量等を兼備している。従って耐摩耗性、耐食
性、高強度、軒昂等が要求されるあらゆる機械金属部品
、電気部品、治具、工具への利用が期待できる。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field In the present invention, titanium material refers to titanium (T i ) and titanium alloy (Ti alloy). The present invention relates to a surface hardening treatment method for titanium materials and cemented carbide. The surface obtained by the present invention is extremely hard, and has excellent wear resistance, corrosion resistance,
It has both high strength and light weight. Therefore, it can be expected to be used in all kinds of mechanical metal parts, electrical parts, jigs, and tools that require wear resistance, corrosion resistance, high strength, eave height, etc.
（ロ） 従来の技術
チタン材は高強度、低比重、耐食性等、鎧れた性質があ
る。しかし硬さは普通鋼の硬さ程度で、耐摩耗性を必要
とする箇所には用いないのが一般的である。一方ホウ化
物は極めて硬く耐摩耗性材料として優れている。チタン
材及び超硬合金の表面硬化処理法しては前者はＣＶＤ法
（化学的気相蒸着法） 、ＰＶＤ法（物理的気相蒸着法
）、プラズマ窒化法及びカス窒化法、後者はＣＶＤ法、
ＰＶＤ法等が知られている。しかし、これらの方法は特
殊でしかも高価な設備が必要である、あるいは処理操作
が煩雑である、という欠点があった。またホウ素を含む
溶融塩中に浸せき、あるいは粉末中に埋没させる表面硬
化処理方法もあるが、溶融塩の管理が煩雑、あるいは被
処理材の取り出しが極めて困Ｈ等の欠点があった。(b) Conventional technology Titanium materials have excellent properties such as high strength, low specific gravity, and corrosion resistance. However, its hardness is comparable to that of ordinary steel, and it is generally not used in areas that require wear resistance. On the other hand, borides are extremely hard and have excellent wear resistance. Surface hardening treatment methods for titanium materials and cemented carbide include CVD (chemical vapor deposition), PVD (physical vapor deposition), plasma nitriding and scum nitriding, and CVD (CVD) for the latter. ,
A PVD method and the like are known. However, these methods have drawbacks in that they require special and expensive equipment or require complicated processing operations. There is also a surface hardening treatment method in which the material is immersed in a molten salt containing boron or buried in powder, but these methods have drawbacks such as complicated management of the molten salt and extremely difficult removal of the material to be treated.
（ハ〉 発明が解決しようとする課題
本発明は以上の欠点を解決、あるいは改善するものであ
る。すなわち特殊で高価な設備及び管理が煩雑な溶融塩
を用いない、処理操作が極めて簡単で経済性に優れ、し
かも極めて硬い表面を得ることを目的とした。(C) Problems to be Solved by the Invention The present invention solves or improves the above-mentioned drawbacks.In other words, it does not use special and expensive equipment or molten salt that is complicated to manage, and the processing operation is extremely simple and economical. The aim was to obtain an extremely hard surface with excellent properties.
（ニ） 課題を解決するための手段
本発明は薬剤をペースト状にして被処理材に塗布した後
乾燥、加熱するペースト法を採用することにより、被処
理材表面に極めて硬い金属間化合物、あるいはホウ素を
含む拡散層を生成させることにより表面硬化させる方法
である。(d) Means for Solving the Problems The present invention employs a paste method in which a chemical is made into a paste and applied to the material to be treated, then dried and heated, thereby creating an extremely hard intermetallic compound or This is a method of surface hardening by creating a diffusion layer containing boron.
すなわち炭化ホウ素を４０〜８５重量％、ホウ酸塩２〜
４０重量％、促進剤１〜５６重量％、粘結剤１〜１５重
量％及び増量剤５６重量％以下よりなる混合物を溶剤で
ペースト状にして練り合わせ、チタン材及び超硬合金の
周囲あるいは表面に塗布した後、７５０℃〜１１００℃
の温度で加熱するペースト法を採用することにより良好
な結果を得ることができた。本発明は特殊な設備を必要
とせず、処理操作も極めて簡単である。That is, 40 to 85% by weight of boron carbide and 2 to 85% of boron carbide.
A mixture consisting of 40% by weight, 1 to 56% by weight of accelerator, 1 to 15% by weight of binder, and 56% by weight of extender is made into a paste with a solvent and kneaded to form a paste around or on the surface of titanium material and cemented carbide. After coating, 750℃~1100℃
Good results were obtained by employing a paste method in which the paste was heated at a temperature of . The present invention does not require special equipment and the processing operation is extremely simple.
本発明では薬剤は主成分として炭化ホウ素を用い、これ
と共にホウ素供給源、あるいはホウ化促進剤の作用があ
るホウ酸塩、促進剤、粘結剤及び増量剤の混合物からな
る。薬剤全体の４０〜８５重量％の炭化ホウ素、２〜４
０重量％のホウ酸塩、１〜５６重量％の促進剤、１〜１
５重量％のの粘結剤及び５６重量％以下の増量剤よりな
る薬剤を用いる。薬剤の混合の割り合いが前記の範囲を
外れた場合、高温度で被処理材から薬剤の溶出、脱落等
が生じて健全な硬質化合物は得１うれない、あるいは生
成した硬質化合物がはく離する等の問題がある。主成分
としては炭化ホウ素：４０〜８５０〜８５重量酸、ホウ
酸ナトリウム、ホウ酸カリウム、ホウ酸アンモニウム等
のホウ酸塩：２〜４０重量％の混合の場合極めて硬い表
面が得られた。In the present invention, the agent uses boron carbide as a main component, and together with this, it consists of a boron source or a mixture of borates acting as boration promoters, promoters, binders and fillers. 40-85% by weight of the total drug boron carbide, 2-4
0 wt% borate, 1-56 wt% accelerator, 1-1
A drug consisting of 5% by weight of binder and up to 56% by weight of filler is used. If the mixing ratio of the chemicals is out of the above range, the chemicals will elute or fall off from the treated material at high temperatures, making it impossible to obtain a healthy hard compound, or the generated hard compound may peel off. There is a problem. When the main components were boron carbide: 40-85% by weight, an acid, a borate such as sodium borate, potassium borate, ammonium borate, etc.: 2-40% by weight, an extremely hard surface was obtained.
促進剤としてはアンモニウム塩、アルカリ金属のハロゲ
ン化物、炭酸塩が有効である。Ammonium salts, alkali metal halides, and carbonates are effective as accelerators.
粘結剤には水酸化カルシウム、珪酸す１ヘリウム、酸化
カルシウム等が有効である。これらを添カロする目的は
ペースｌ−状薬剤を被処理材に塗布する、あるいは高温
度で処理する過程で薬剤が被処理材から開溝しないよう
に粘結性を付与するためである。しかし含有量が１５重
量％を越えると硬質化合物が生威し難く、１〜１５重量
％含有させるのが適当である。増量剤としては酸化アル
ミニウムに代表される化学的に安定な薬品である。Calcium hydroxide, helium silicate, calcium oxide, etc. are effective binders. The purpose of adding these substances is to impart caking properties so that the paste l-form chemicals are applied to the material to be treated or to prevent the chemicals from separating from the material to be treated during the process of processing at high temperatures. However, if the content exceeds 15% by weight, it is difficult for the hard compound to survive, so a content of 1 to 15% by weight is appropriate. The filler is a chemically stable chemical typified by aluminum oxide.
処理温度が高いほど硬質化合物は生威しやすいが、より
高温度処理では材質の劣化が生じて不適当である。本発
明は処理温度が７５０℃でも表面硬化ができる。しかし
、７５０’Ｃ未満では硬質化合物、あるいはホウ素を含
む拡散層の生成速度が極めて遅い。従って処理温度とし
ては７５０℃〜１１００℃が良好である。本発明は真空
または保護雰囲気中処理が困Ｈな場合には大気中処理も
可能である。この理由は本発明では薬剤成分の分解ガス
により被処理材周囲は保護性雰囲気となるからである。The higher the treatment temperature, the more likely the hard compound will survive, but higher temperature treatment is unsuitable because it causes deterioration of the material. The present invention allows surface hardening even at a treatment temperature of 750°C. However, below 750'C, the rate of formation of a hard compound or a diffusion layer containing boron is extremely slow. Therefore, a suitable treatment temperature is 750°C to 1100°C. In the present invention, when processing in a vacuum or a protective atmosphere is difficult, processing in the atmosphere is also possible. The reason for this is that in the present invention, a protective atmosphere is created around the material to be treated due to the decomposition gas of the drug component.
また硬質化合物の生成が微弱の場合でも生成したホウ素
拡散層の硬さは素地中心部よりも高い値である。Furthermore, even when the hard compound is only slightly generated, the hardness of the generated boron diffusion layer is higher than that of the center of the substrate.
（ホ〉 実施例
実施例１゜
炭化ホウ素：６５重量％、ホウ酸ナトリウム：２０重量
％、硼弗化ナトリウム：８．５重量％、塩化す［・リウ
ム＋塩化アンモニウム：２．５重量％、水酸化カルシウ
ム：４重量％を乳鉢にて混合し、エチルアルコールでペ
ースト状にした後、Ｔ板の周囲に３ｍｍ厚さに塗布、１
０１０’ｃで１８時間、大気中７ＪＤ熱を行った。その
結果、表面硬さはヌープ硬さ（試験荷重２０ｇ）：３５
００であり、平均厚さ８．９μｍの硬質化合物が表面に
生成した。(E) Examples Example 1 Boron carbide: 65% by weight, Sodium borate: 20% by weight, Sodium borofluoride: 8.5% by weight, Sourium chloride + ammonium chloride: 2.5% by weight, Calcium hydroxide: Mix 4% by weight in a mortar, make a paste with ethyl alcohol, and apply to a thickness of 3mm around the T plate.
7JD heat was carried out in air at 010'c for 18 hours. As a result, the surface hardness was Knoop hardness (test load 20g): 35
00, and a hard compound with an average thickness of 8.9 μm was formed on the surface.
実施例２゜
実施例１と同一条件でＴ ｉ −６Ａ ｌ−４Ｖ合金を
処理した結果、表面硬さはヌープ硬さ（試験荷重２０ｇ
）：３９５０であり、平均厚さ７．４μｍの硬質化合物
が表面に生成した。Example 2 As a result of treating Ti-6A l-4V alloy under the same conditions as Example 1, the surface hardness was Knoop hardness (test load 20g).
): 3950, and a hard compound with an average thickness of 7.4 μm was formed on the surface.
実施例３゜
実施例１と同一の薬剤、塗布方法により超硬合金を９５
０℃で１８時間、大気中加熱を行った。Example 3 Cemented carbide was coated with 95% of cemented carbide using the same chemicals and application method as in Example 1.
Heating was performed in air at 0° C. for 18 hours.
その結果、表面はビッカース硬さ（試験荷重３００ｇ）
：２０４５であり、硬質化合物の生成が確認された。As a result, the surface has Vickers hardness (test load 300g)
:2045, and formation of a hard compound was confirmed.
実施例４゜
実施例１と同一の薬剤、塗布方法によりＴ６Ａ＋−４Ｖ
合金を７５０°Ｃで１８時間、大気中加熱を行った。そ
の結果、表面はヌープ硬さ（試験荷重２０ｇ）：１０８
４であり、Ｘ線回折結果より表面に硬質化合物の生成が
確認された。Example 4゜T6A+-4V using the same drug and application method as Example 1
The alloy was heated in air at 750°C for 18 hours. As a result, the surface has a Knoop hardness (test load 20g): 108
4, and the formation of a hard compound on the surface was confirmed from the X-ray diffraction results.
実施例５゜
実施例１と同一の薬剤、塗布方法によりＴｉを８００℃
、１８時間大気中加熱を行った。その結果、表面はビッ
カース硬さ（試験荷重５０ｑ）：１３１４であり、Ｘ線
回折結果より表面に硬質化合物の生成が確認された。Example 5゜Ti was heated to 800°C using the same agent and application method as Example 1.
, Heating was performed in the air for 18 hours. As a result, the surface had a Vickers hardness (test load of 50q): 1314, and the formation of a hard compound on the surface was confirmed from the X-ray diffraction results.
実施例６゜
炭化ホウ素：８０重量％、ホウ酸ナトリウム：５重量％
、硼弗化す１〜リウム：８．５重量％、塩化すトリウム
＋塩化アンモニウム：２．５重量％、水酸化カルシウム
：４重量％、を乳鉢にて混合し、エチルアルコールでペ
ースト状にした後、Ｔ６Ａ＋−４Ｖ合金の表面に２ｍｍ
厚さに塗布、１ｏ ｏ ｏ ’ｃて１８時間、大気中加
熱をした結果、表面はビッカース硬さ（試験荷重５０に
ｌ）：２７５６であり、Ｘ線回折結果より表面に硬質化
合物の生成が確認された。Example 6 Boron carbide: 80% by weight, sodium borate: 5% by weight
, 1 to lithium borofluoride: 8.5% by weight, thorium chloride + ammonium chloride: 2.5% by weight, and calcium hydroxide: 4% by weight were mixed in a mortar and made into a paste with ethyl alcohol. , 2mm on the surface of T6A+-4V alloy
As a result of applying the coating to a thickness of 1°C and heating it in the air for 18 hours, the surface had a Vickers hardness (test load of 50 l): 2756, and the X-ray diffraction results showed that hard compounds were not formed on the surface. confirmed.
実施例７゜
炭化ホウ素：５００重丸、ホウ酸ナトリウム：８．３３
３重丸、硼弗化ナトリウム：５．７重量％、塩化ナトリ
ウム＋塩化アンモニウム：１．６７重量％、水酸化カル
シウム：２重量％、酸化アルミニウム：３２．３重量％
を乳鉢にて混合し、エチルアルコールでペースト状にし
た後、Ｔ６Ａ＋−４Ｖ合金の周囲に５ｍｍ厚さに塗布、
１０２０℃で１８時間、大気中加熱を行った。その結果
、表面はヌープ硬さ（試験荷重２０ｇ）：３０２５であ
り、平均厚さ６．３μｍの硬質化合物の生成が確認され
た。Example 7 Boron carbide: 500 juumaru, sodium borate: 8.33
Triple circle, sodium borofluoride: 5.7% by weight, sodium chloride + ammonium chloride: 1.67% by weight, calcium hydroxide: 2% by weight, aluminum oxide: 32.3% by weight
After mixing in a mortar and making a paste with ethyl alcohol, apply it to a thickness of 5 mm around the T6A+-4V alloy.
Heating was performed in air at 1020° C. for 18 hours. As a result, the surface had a Knoop hardness (test load of 20 g): 3025, and the formation of a hard compound with an average thickness of 6.3 μm was confirmed.
（二〉 発明の作用・効果
本発明は他の方法にない優れた作用・効果がある。それ
はチタン材及び超硬合金は超硬質の表面を得るためには
高価な設備と特殊な技術が必要である。しかし本発明で
は薬剤を塗布して加熱するだけで極めて簡単に、しかも
安価に超硬質の表面が得られることにある。本発明で得
られた表面は工業的要求を＠足する硬さを有し、耐摩耗
性、耐食性に優れ、これらを用いた各種部品、治具、工
具は著しく長寿命化する。(2) Functions and Effects of the Invention The present invention has excellent functions and effects not found in other methods.This is because titanium materials and cemented carbide require expensive equipment and special techniques to obtain a superhard surface. However, in the present invention, an ultra-hard surface can be obtained extremely easily and inexpensively by simply applying a chemical and heating it.The surface obtained by the present invention has a hard surface that meets industrial requirements. It has excellent wear resistance and corrosion resistance, and various parts, jigs, and tools using these materials have a significantly longer lifespan.
Claims (1)
量％、促進剤１〜５６重量％、粘結剤１〜１５重量％及
び増量剤５６重量％以下よりなる混合物を溶剤でペース
ト状にして練り合わせ、被処理材の周囲あるいは表面に
塗布した後、７５０℃〜１１００℃の温度で加熱をする
ことを特徴とするペースト法によるチタン材及び超硬合
金の表面硬化処理法。A mixture consisting of 40 to 85% by weight of boron carbide, 2 to 40% by weight of borate, 1 to 56% by weight of accelerator, 1 to 15% by weight of binder, and 56% by weight or less of filler is made into a paste with a solvent. A method for surface hardening titanium materials and cemented carbide using a paste method, which comprises kneading the material, applying it to the periphery or surface of the material to be treated, and then heating at a temperature of 750°C to 1100°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5732990A JPH03257151A (en) | 1990-03-08 | 1990-03-08 | Surface hardening treatment of titanium material and cemented carbide by paste method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5732990A JPH03257151A (en) | 1990-03-08 | 1990-03-08 | Surface hardening treatment of titanium material and cemented carbide by paste method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03257151A true JPH03257151A (en) | 1991-11-15 |
Family
ID=13052533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5732990A Pending JPH03257151A (en) | 1990-03-08 | 1990-03-08 | Surface hardening treatment of titanium material and cemented carbide by paste method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03257151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790543A (en) * | 1993-09-28 | 1995-04-04 | Showa Alum Corp | Surface hardening method of cemented carbide member |
| JP2006506525A (en) * | 2002-11-15 | 2006-02-23 | ユニバーシティ・オブ・ユタ・リサーチ・ファウンデーション | Integrated titanium boride coating on titanium surfaces and related methods |
| JP2016108608A (en) * | 2014-12-05 | 2016-06-20 | 株式会社シマノ | Titanium member |
| JP2021011603A (en) * | 2019-07-04 | 2021-02-04 | 学校法人 関西大学 | Machine component |
-
1990
- 1990-03-08 JP JP5732990A patent/JPH03257151A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790543A (en) * | 1993-09-28 | 1995-04-04 | Showa Alum Corp | Surface hardening method of cemented carbide member |
| JP2006506525A (en) * | 2002-11-15 | 2006-02-23 | ユニバーシティ・オブ・ユタ・リサーチ・ファウンデーション | Integrated titanium boride coating on titanium surfaces and related methods |
| JP2016108608A (en) * | 2014-12-05 | 2016-06-20 | 株式会社シマノ | Titanium member |
| JP2021011603A (en) * | 2019-07-04 | 2021-02-04 | 学校法人 関西大学 | Machine component |
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