JPH05112885A - Titanium coating film remover for high-speed tool steel - Google Patents

Titanium coating film remover for high-speed tool steel

Info

Publication number
JPH05112885A
JPH05112885A JP3230983A JP23098391A JPH05112885A JP H05112885 A JPH05112885 A JP H05112885A JP 3230983 A JP3230983 A JP 3230983A JP 23098391 A JP23098391 A JP 23098391A JP H05112885 A JPH05112885 A JP H05112885A
Authority
JP
Japan
Prior art keywords
titanium
coating film
weight
alkali salt
removal
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
Application number
JP3230983A
Other languages
Japanese (ja)
Other versions
JP2597931B2 (en
Inventor
Takakazu Takano
孝和 高野
Toyokazu Okada
豊和 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nachi Fujikoshi Corp
Original Assignee
Nachi Fujikoshi Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nachi Fujikoshi Corp filed Critical Nachi Fujikoshi Corp
Priority to JP3230983A priority Critical patent/JP2597931B2/en
Publication of JPH05112885A publication Critical patent/JPH05112885A/en
Application granted granted Critical
Publication of JP2597931B2 publication Critical patent/JP2597931B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19Iron or steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE:To easily remove a coating film of a titanium compd. such as titanium nitride on the worked body of high-speed tool steel without deteriorating the hardness or other surface quality of the steel and to enable recoating. CONSTITUTION:This titanium coating film remover is a mixed aq. soln. contg., by weight, 1-20% alkali salt of polyphosphoric acid, 1-10% one or more kinds of hydroxycarbonate type alkali salts of org. acids, 2-15% alkali salt of ethylenediamineacetic acid, 0.1-5% alkali hydroxide, 0.05-0.5% alkali salt of thioglycolic acid and 3-7% hydrogen peroxide.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、高速度工具鋼の加工物
に被覆されたチタン、窒化チタン、炭化チタン等のチタ
ン化合物のコーティング被膜(以下、チタンコーティン
グ被膜という)を素材の硬度等の表面品質を劣化させる
ことなく除去を容易にし、しかも再コーティングを可能
ならしめることを目的としたコーティング被膜の化学的
除去剤に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a coating film of titanium compound such as titanium, titanium nitride and titanium carbide (hereinafter referred to as titanium coating film) which is coated on a work of high speed tool steel to obtain the hardness of the material. The present invention relates to a chemical remover for a coating film for the purpose of facilitating removal without deteriorating surface quality and enabling recoating.

【0002】[0002]

【従来技術】高速度工具鋼に窒化チタン等の硬質コーテ
ィング被膜を施した加工物は、耐摩耗品として切削工具
を始めとして、種々の分野でその使用が盛んになってい
るが、摩耗が進行したときはこの摩耗部分に所要の再整
形を加えて使用されることが普通である。これは主とし
て研削加工によってなされる。しかしながら、チタンコ
ーティング被覆を施した加工物の場合、チタン化合物の
難削性のために、研削加工では新品と同じ形状を得るこ
とが困難である。さらに、窒化チタン等のコーティング
被覆膜をめっきの剥離のように化学的処理方法で除去す
ると、タングステン、モリブデン等の化合物の溶出に代
表されるように硬度の低下等の表面性状の劣化を伴うと
いう理由から、化学的処理方法を行うことは殆どなされ
ていない。例えば、既存のチタンの化学処理液のほとん
どが酸化被膜除去、光沢化処理剤(特開昭60-207725
号、特開昭62-167895号、特開平1-272785号参照)であ
り、高速度工具鋼素地の肌荒れが激しい。また鉄素地用
と称するものにおいても、除去処理時間が長くかかり、
しかも高速度工具鋼の表面組成成分の溶出があり、硬度
低下等に起因する品質低下が避けられない。そこで、主
として研削加工によって被膜の除去がなされているのが
実情である。
2. Description of the Related Art Workpieces made of high-speed tool steel coated with a hard coating such as titanium nitride are widely used in various fields such as cutting tools as wear-resistant products, but wear progresses. When this happens, it is usual to use the worn part with the required reshaping. This is mainly done by grinding. However, in the case of a workpiece coated with titanium coating, it is difficult to obtain the same shape as a new product by grinding because of the difficulty of cutting the titanium compound. Furthermore, when a coating film such as titanium nitride is removed by a chemical treatment method such as peeling of plating, the surface property is deteriorated such as hardness decrease as represented by elution of compounds such as tungsten and molybdenum. For that reason, chemical treatment methods are rarely used. For example, most of the existing titanium chemical treatment liquids are oxide film removal and gloss treatment agents (JP-A-60-207725).
Nos. 62-167895 and 1-272785), and the roughening of the high-speed tool steel substrate is severe. In addition, even for what is called an iron substrate, the removal processing time is long,
Moreover, the surface composition components of the high-speed tool steel are leached out, and the quality deterioration due to the hardness decrease is unavoidable. Therefore, the fact is that the coating is mainly removed by grinding.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、チタン
コーティング被膜を施した加工物に研削加工を行って
も、上述のように、チタン化合物の難削性が原因して研
削が十分になされず、新品と同じ形状を得ることは困難
である。しかも、研削加工は部分的にしか実施できない
のであり、加工物の再コーティングは新品時に施したコ
ーティング被膜上に再コーティングする他はない。この
ため、再コーティング加工を行っても高い密着度が得ら
れず、高速度工具鋼加工物の性能低下を招いている。さ
らに、上記のように研削加工に代表される機械加工以外
にめっきの剥離のように、チタンコーティング被膜が化
学的処理方法で除去されることは稀である。
However, even if a workpiece coated with a titanium coating film is ground, as described above, due to the difficult-to-cut property of the titanium compound, the grinding is not sufficient and a new product is obtained. It is difficult to get the same shape as. Moreover, since the grinding process can only be partially carried out, the recoating of the work piece is nothing but the recoating on the coating film applied at the time of new product. For this reason, even if re-coating is performed, a high degree of adhesion cannot be obtained, resulting in deterioration of the performance of the high speed tool steel workpiece. Further, the titanium coating film is rarely removed by a chemical treatment method such as plating peeling other than the machining represented by the grinding as described above.

【0004】また、チタンコーティング被膜の除去に当
たって、研削加工を行っても作業性が悪く、また、コー
ティング被膜全面を除去するには新品を製作するのと同
程度の多くの工数をかけなければならず、寸法、形状の
再現性も不十分である。現在行なわれている部分的除去
方法では、除去されなかったチタンコーティング被膜が
再生品の性能低下の要因となっている。
Further, in removing the titanium coating film, the workability is poor even if grinding is performed, and in order to remove the entire surface of the coating film, it is necessary to take as many man-hours as the production of a new product. In addition, the reproducibility of dimensions and shape is insufficient. In the currently practiced partial removal method, the titanium coating film that is not removed causes the performance of the recycled product to deteriorate.

【0005】[0005]

【課題を解決するための手段】本発明は、高速度工具鋼
の表面性状の劣化を引起こすことなく、チタンコーティ
ング被膜の除去を可能ならしめ、再コーティングに必要
な清浄な素地面を得るチタンコーティング被膜の除去剤
を得ることを目的としてなされたチタンコーティング被
膜の除去剤に関する。本発明に係る除去剤は高速度工具
鋼のチタン、窒化チタン、炭化チタン等のチタン化合物
のコーティング被膜を重合リン酸アルカリ塩、ヒドロキ
シ・カルボネート系有機酸アルカリ塩、エチレン・ジア
ミン・酢酸アルカリ塩、水酸化アルカリ、チオグリコー
ル酸アルカリ塩、過酸化水素を含有する混合水溶液に浸
漬することにより高速度工具鋼のチタンコーティング被
膜の除去剤を可能としたものである。
SUMMARY OF THE INVENTION The present invention allows titanium coatings to be removed without degrading the surface texture of high speed tool steels, resulting in a clean ground for recoating. The present invention relates to a titanium coating film removing agent for the purpose of obtaining a coating film removing agent. The remover according to the present invention is a high-speed tool steel such as titanium, titanium nitride, and a coating film of a titanium compound such as titanium carbide, which is polymerized with an alkali salt of phosphoric acid, a hydroxy carbonate organic acid alkali salt, ethylene diamine acetic acid alkali salt, By immersing in a mixed aqueous solution containing alkali hydroxide, thioglycolic acid alkali salt, and hydrogen peroxide, a removal agent for the titanium coating film of high speed tool steel is made possible.

【0006】さらに、上記の混合水溶液に10〜40°
Cの温度範囲で、浸漬することにより加工物の高速度工
具鋼の素地を劣化させることなくチタンコーティング被
膜を除去できるのである。この混合液に含まれる重合リ
ン酸アルカリ塩は、ピロリン酸、トリポリ・リン酸、テ
トラポリ・リン酸のアルカリ塩を示し、ヒドロキシ・カ
ルボネート系有機酸アルカリ塩は、具体的にはグルコン
酸、グリコール酸、クエン酸等のアルカリ塩がある。
Further, the mixed aqueous solution described above has a temperature of 10 to 40 °.
By dipping in the temperature range of C, the titanium coating can be removed without degrading the high speed tool steel substrate of the workpiece. The polymerized phosphoric acid alkali salt contained in this mixed solution is an alkali salt of pyrophosphoric acid, tripolyphosphoric acid, or tetrapolyphosphoric acid, and the hydroxy carbonate organic acid alkali salt is specifically gluconic acid or glycolic acid. , There are alkali salts such as citric acid.

【0007】また、重合リン酸アルカリ塩は、タングス
テン、モリブデン等のまたはこれらの化合物の溶出を抑
制するのに効果があるが、その濃度が1重量%以下で
は、その効果が弱く、長時間浸漬で溶出が顕著であり、
20%以上になると重合リン酸アルカリ塩の完全な溶解
が得られられず、除去速度が遅くなる。そこで、水溶液
中の重合リン酸アルカリ塩を1〜20重量%に限定し
た。
Further, the polymerized alkali phosphate is effective in suppressing the elution of tungsten, molybdenum, etc. or these compounds, but when the concentration is 1% by weight or less, the effect is weak and soaking for a long time. The elution is remarkable at
If it is 20% or more, complete dissolution of the polymerized alkali phosphate cannot be obtained, and the removal rate becomes slow. Therefore, the polymerized alkali phosphate salt in the aqueous solution is limited to 1 to 20% by weight.

【0008】ヒドロキシ・カルボネート系有機酸アルカ
リ塩は、チタンコーティング被膜の除去速度に効果があ
るが、1重量%以下では、除去が完全ではなく水酸化チ
タンの沈着が発生し、素地が白化することがある。10
重量%以上になると素地組成成分の溶出が認められる。
そこで、ヒドロキシ・カルボネート系有機アルカリ塩の
1種以上を1〜10重量%に限定した。
The hydroxy carbonate organic acid alkali salt has an effect on the removal rate of the titanium coating film, but if it is less than 1% by weight, the removal is not complete, and titanium hydroxide deposits to cause whitening of the substrate. There is. 10
Elution of the base composition component is observed when the content is more than weight%.
Therefore, the amount of one or more hydroxy carbonate organic alkali salts is limited to 1 to 10% by weight.

【0009】エチレン・ジアミン・酢酸アルカリ塩は、
除去速度促進に効果があるが、その濃度が2重量%以下
では、その効果が弱く、15重量%以上になると素地の
肌荒れがみられる。そこで、エチレン・ジアミン・酢酸
アルカリ塩を2〜15%に限定した。
Ethylene / diamine / acetic acid alkali salt is
Although it is effective in accelerating the removal rate, when the concentration is 2% by weight or less, the effect is weak, and when it is 15% by weight or more, rough skin of the substrate is observed. Therefore, the ethylene / diamine / acetic acid alkali salt is limited to 2 to 15%.

【0010】水酸化アルカリは過酸化水素を還元剤とし
て作用させる効果があるが、その濃度が0.1重量%以
下では、除去速度が遅く、5重量%以上になるとまた除
去速度がおそくなる。それに素地が黒く変色してくる。
そこで、水酸化アルカリを0.1〜5重量%に限定し
た。
Alkali hydroxide has an effect of causing hydrogen peroxide to act as a reducing agent, but when the concentration thereof is 0.1% by weight or less, the removal rate is slow, and when it is 5% by weight or more, the removal rate becomes slow again. Moreover, the substrate becomes discolored black.
Therefore, the alkali hydroxide is limited to 0.1 to 5% by weight.

【0011】チオグリコール酸アルカリ塩は、素地の除
錆効果とエチレン・ジアミン・酢酸アルカリ塩との相互
作用により除去速度を促進する効果がある。その濃度
は、0.05〜0.5重量%において有効である。そこ
で、チオグリコール酸アルカリ塩を0.05〜0.5重
量%に限定した。
The thioglycolic acid alkali salt has an effect of rust removal of the substrate and an effect of promoting the removal rate by the interaction with the ethylene / diamine / acetic acid alkali salt. The concentration is effective at 0.05 to 0.5% by weight. Therefore, the thioglycolic acid alkali salt is limited to 0.05 to 0.5% by weight.

【0012】過酸化水素は、アルカリ溶液中でIV族元素
のチタンと過酸化物を形成し、過酸化水素の濃度が3重
量%以下では、除去速度が遅過ぎ、7重量%以上では、
安定した除去速度が得られず、過酸化水素の分解反応に
よる熱で処理溶液の温度上昇とともに素地の肌荒れが激
しくなる。そこで、過酸化水素を3〜7%に限定した。
Hydrogen peroxide forms a peroxide with titanium of Group IV element in an alkaline solution. When the concentration of hydrogen peroxide is 3% by weight or less, the removal rate is too slow, and when it is 7% by weight or more,
A stable removal rate cannot be obtained, and the heat of the decomposition reaction of hydrogen peroxide causes the temperature of the treatment solution to rise and the surface of the substrate to become rough. Therefore, hydrogen peroxide is limited to 3 to 7%.

【0013】なお、安定したチタンコーティング被膜の
除去速度を得るための処理温度は、10〜40℃の範囲
であり、処理温度が低いほど除去速度が遅く、温度が高
いほど素地の表面性状が悪くなる。また、除去速度は油
分付着等の清浄度の程度にもよるが、1〜2時間/0.
001mmの範囲である。
The treatment temperature for obtaining a stable removal rate of the titanium coating film is in the range of 10 to 40 ° C. The lower the treatment temperature, the slower the removal rate, and the higher the temperature, the poorer the surface properties of the substrate. Become. Further, the removal rate depends on the degree of cleanliness such as oil adhesion, but it is 1-2 hours / 0.
The range is 001 mm.

【0014】[0014]

【実施例】本発明に関する除去剤の組成の実施例を示す
と次のようである。 .主剤 :水酸化カリウム 15g/l .酸化還元剤 :過酸化水素 10〜20
% .イオン封止剤:グルコン酸Na 50g イオン封止剤:EDTA・4Na 30g/l .腐食防止剤 :チオグリコール酸Na 1g/l .分解抑制剤 :トリポリリン酸Na 50g/l .反応起動剤 :シュウ酸NH4 5g/l 除去剤の性状 :無色・液状─アルカリ性(PH 12.9) 比重(1.095)[20℃]
EXAMPLE An example of the composition of the removing agent according to the present invention is shown below. . Main agent: potassium hydroxide 15 g / l. Redox agent: hydrogen peroxide 10-20
%. Ion sealant: Na gluconate 50 g Ion sealant: EDTA.4Na 30 g / l. Corrosion inhibitor: Na thioglycolate 1 g / l. Degradation inhibitor: Na tripolyphosphate 50 g / l. Reaction initiator: NH 4 oxalate 5 g / l Properties of remover: Colorless / liquid-alkaline (PH 12.9) Specific gravity (1.095) [20 ° C]

【0015】窒化チタンコーティングが施された直径6
mmの高速度鋼製ドリルを試料として次のような条件で
窒化チタンの除去を行った。 1)処理条件 濃度:原液 外観・性状:無色,液状(アルカリ性,PH12.9) 比重:1.095(20℃) 温度:10℃〜40℃ 時間:12時間以内 2)処理槽 耐熱性プラスチック槽 3)ランニング 10dm2 /l以下 本発明剤100V%+過酸化水素水20V% ガスが発生した場合、直ちに過酸化水素を添加した(1
回の添加量10V%以下) 除膜後、充分水洗し防水処理を行った。
Diameter 6 with titanium nitride coating
Using a mm high-speed steel drill as a sample, titanium nitride was removed under the following conditions. 1) Treatment conditions Concentration: Stock solution Appearance / property: Colorless, liquid (alkaline, PH12.9) Specific gravity: 1.095 (20 ° C) Temperature: 10 ° C-40 ° C Time: Within 12 hours 2) Treatment tank Heat-resistant plastic tank 3) Running 10 dm 2 / l or less Inventive agent 100 V% + hydrogen peroxide water 20 V% When gas was generated, hydrogen peroxide was immediately added (1
After the film removal, the film was thoroughly washed with water and waterproofed.

【0016】(1)結果 .発明によれば、処理液がドリル性能に及ぼす影響は
表1に示すようになった。また、コーティグ除膜後の表
面硬度を調べたところ、試料5個平均値でみると、ベー
ス硬度がHV(100g)955であり、除膜後の表面
硬度は同じく952であり、除膜剤による表面硬度の影
響は認められなかった。
(1) Results. According to the invention, Table 1 shows the influence of the treatment liquid on the drill performance. Further, when the surface hardness after coating removal was examined, the average value of the five samples showed that the base hardness was HV (100 g) 955, and the surface hardness after removal was 952, which was determined by the film removal agent. No effect of surface hardness was observed.

【0017】[0017]

【表1】 [Table 1]

【0018】.TiN除膜時のドリルの切削性能試験
を下記により行った。 切削条件 使用ドリル:G.SD φ6.0mm 被削剤 :SNC 8.36(HB 262 〜288) 20mm 切削速度 :V=18.8/min(1000r/min) 送り量 :f =0.1mm/r(100mm/min) 切削油剤 :水溶性エマルジョン 除膜後の切削性能は、図1に示す通りあった。
.. A cutting performance test of the drill at the time of removing the TiN film was conducted as follows. Cutting conditions Drill used: G.SD φ6.0 mm Work material: SNC 8.36 (HB 262 to 288) 20 mm Cutting speed: V = 18.8 / min (1000 r / min) Feed rate: f = 0.1 mm / r (100 mm / min ) Cutting fluid: water-soluble emulsion The cutting performance after film removal was as shown in FIG.

【0019】[0019]

【図1】[Figure 1]

【0020】.TiN除膜後、再コーティングしたド
リルの切削性能試験を行ったところ、図2に示す通りの
結果を得た。 切削条件 使用ドリル:G.SD φ6.0mm 被削剤 :SNC 8.36(HB 262 〜288) 20mm 切削速度 :V=37.7/min(2000r/min) 送り量 :f=0.1mm/r(100mm/min) 切削油剤 :水溶性エマルジョン これによれば、除膜剤による切削性能の影響は認められ
なかった。
[0020]. After removing the TiN film, a cutting performance test was performed on the recoated drill, and the results shown in FIG. 2 were obtained. Cutting conditions Drill used: G.SD φ6.0mm Working material: SNC 8.36 (HB 262 ~ 288) 20mm Cutting speed: V = 37.7 / min (2000r / min) Feed rate: f = 0.1mm / r (100mm / min ) Cutting oil: water-soluble emulsion According to this, the influence of the film removing agent on the cutting performance was not recognized.

【0021】[0021]

【図2】[Fig. 2]

【0022】本発明に係るチタンコーティング被膜の除
去剤の他の実施例を表2及び表3に示す。
Other examples of the titanium coating film removing agent according to the present invention are shown in Tables 2 and 3.

【0023】[0023]

【表2】 [Table 2]

【0024】[0024]

【表3】 [Table 3]

【0025】[0025]

【発明の効果】本発明に係るTi除去剤は上記のような
組成を有し、浸漬処理をするのみで、チタンコーティン
グ被膜を除去できるので、処理が極めて簡単に行うこと
が可能となった。しかも本発明に係るチタンコーティン
グ被膜の化学的除去液は表面性状を劣化することなく有
効に作用するので、工具としての性能が損なわれること
がなく、新品と同等以上の性能を発揮するのである。さ
らに、コーティング装置の治工具に付着したチタンコー
ティング被膜の除去にも応用可能であり、コーティング
装置の保守工数の削減を図ることできる。さらに、従来
の機械的除去方法に伴う粉塵の発生もなく、作業環境の
改善を図ることができた。
The Ti removing agent according to the present invention has the composition as described above, and the titanium coating film can be removed by only dipping, so that the treatment can be performed very easily. Moreover, the chemical removing liquid for the titanium coating film according to the present invention effectively acts without deteriorating the surface properties, so that the performance as a tool is not impaired and the performance equal to or better than that of a new product is exhibited. Further, it can be applied to the removal of the titanium coating film adhering to the jig of the coating apparatus, and the maintenance man-hours of the coating apparatus can be reduced. Furthermore, the generation of dust associated with the conventional mechanical removal method was eliminated, and the working environment could be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る除去剤による除膜時のものと未
処理のものとの切削性能の比較図である。
FIG. 1 is a comparison diagram of the cutting performance of a film removed by a removing agent according to the present invention and an untreated film.

【図2】この発明に係る除去剤による除膜後再コーティ
ングしたものと、未処理品、除膜前のものの切削性能の
比較図である。
FIG. 2 is a comparison diagram of the cutting performance of a product that has been recoated with a removing agent according to the present invention after film removal, an untreated product, and a product before film removal.

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成3年9月17日[Submission date] September 17, 1991

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0015[Correction target item name] 0015

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0015】窒化チタンコーティングが施された直径6
mmの高速度鋼製ドリルを試料として次のような条件で
窒化チタンの除去を行った。 1)処理条件 濃度:原液 外観・性状:無色,液状(アルカリ性,PH12.9) 比重:1.095(20℃) 温度:10℃〜40℃ 時間:12時間以内 2)処理槽 耐熱性プラスチック槽 3)ランニング 10dm/1以下 本発明剤100V%+過酸化水素水20V% ガスが発生した場合、直ちに過酸化水素を添加した(1
回の添加量10V%以下) 除膜後、充分水洗し防錆処理を行った。
Diameter 6 with titanium nitride coating
Using a mm high-speed steel drill as a sample, titanium nitride was removed under the following conditions. 1) Treatment conditions Concentration: Stock solution Appearance / property: Colorless, liquid (alkaline, PH12.9) Specific gravity: 1.095 (20 ° C) Temperature: 10 ° C-40 ° C Time: Within 12 hours 2) Treatment tank Heat-resistant plastic tank 3) when the running 10 dm 2/1 or less present invention agent 100 V% + hydrogen peroxide 20V% gas is generated and immediately adding hydrogen peroxide (1
After the film was removed, the film was thoroughly washed with water to prevent rust .

【手続補正2】[Procedure Amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0016[Correction target item name] 0016

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0016】(1)結果 .発明によれば、処理液がドリル性能に及ぼす影響は
表1に示すようになった。また、コーティグ除膜後の表
面硬度を調べたところ、試料5個平均値でみると、ベー
ス硬度がHV(100g)855であり、除膜後の表面
硬度は同じく852であり、除膜剤による表面硬度の影
響は認められなかった。
(1) Results. According to the invention, Table 1 shows the influence of the treatment liquid on the drill performance. Also, when the surface hardness after coating removal was examined, the average value of the five samples showed that the base hardness was HV (100 g) 855 , and the surface hardness after removal was 852 , which depended on the removal agent. No effect of surface hardness was observed.

【手続補正3】[Procedure 3]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0018[Correction target item name] 0018

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0018】.TiN除膜時のドリルの切削性能試験
を下記により行った。 切削条件 使用ドリル:G.SD φ6.0mm被削材 :SNC 836(HB262〜288)2
0mm 切削速度 :V=18.8/min(1000r/mi
n) 送り量 :f=0.1mm/r(100mm/mi
n) 切削油剤 :水溶性エマルジョン 除膜後の切削性能は、図1に示す通りであった。
.. A cutting performance test of the drill at the time of removing the TiN film was conducted as follows. Cutting conditions Drill used: G. SD φ6.0 mm Work Material : SNC 836 (HB262-288) 2
0 mm Cutting speed: V = 18.8 / min (1000r / mi
n) Feed rate: f = 0.1 mm / r (100 mm / mi
n) cutting fluid: Cutting performance after aqueous emulsion film removal was as shown in FIG.

【手続補正4】[Procedure amendment 4]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0020[Correction target item name] 0020

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0020】.TiN除膜後、再コーティングしたド
リルの切削性能試験を行ったところ、図2に示す通りの
結果を得た。 切削条件 使用ドリル:G.SD φ6.0mm被削材 :SNC 836(HB262〜288)2
0mm 切削速度 :V=37.7/min(2000r/mi
n) 送り量 :f=0.1mm/r(100mm/mi
n) 切削油剤 :水溶性エマルジョン これによれば、除去剤による切削性能の影響は認められ
なかった。
[0020]. After removing the TiN film, a cutting performance test was performed on the recoated drill, and the results shown in FIG. 2 were obtained. Cutting conditions Drill used: G. SD φ6.0 mm Work Material : SNC 836 (HB262-288) 2
0 mm Cutting speed: V = 37.7 / min (2000r / mi
n) Feed rate: f = 0.1 mm / r (100 mm / mi
n) Cutting oil: water-soluble emulsion According to this, the influence of the removing agent on the cutting performance was not recognized.

【手続補正5】[Procedure Amendment 5]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る除去剤による除膜時のものと
ーティングを施していない(無処理の)新品との切削性
能の比較図である。
[1] that when the film removal by removing agent according to the present invention and co
It is a comparison diagram of the cutting performance with a new (untreated) uncoated .

【図2】この発明に係る除去剤による除膜後再コーティ
ングしたものと、無処理品、除膜前のものの切削性能、
及び除膜後に除去液に長時間浸漬し、再コーティングし
たものの切削性能の比較図である。
FIG. 2 is a view showing the cutting performance of a product which is re-coated after film removal with a removing agent according to the present invention, an untreated product, and a product before film removal
Also, after removing the film, re-coat it by immersing it in the removing solution for a long time.
It is a comparative diagram of the cutting performance of the thing .

【手続補正6】[Procedure correction 6]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】表1[Name of items to be corrected] Table 1

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【表1】 [Table 1]

【手続補正7】[Procedure Amendment 7]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図1[Name of item to be corrected] Figure 1

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図1】 [Figure 1]

【手続補正8】[Procedure Amendment 8]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図2[Name of item to be corrected] Figure 2

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図2】 [Fig. 2]

Claims (1)

【特許請求範囲】 [The claims] 【請求項1】 重合リン酸アルカリ塩を1〜20重量
%、ヒドロキシ・カルボネート系有機酸アルカリ塩の1
種以上を1〜10重量%、エチレン・ジアミン・酢酸ア
ルカリ塩を2〜15重量%、水酸化アルカリを0.1〜
5重量%、チオグリコール酸アルカリ塩を0.05〜
0.5重量%、過酸化水素を3〜7重量%含有する混合
水溶液から構成されることを特徴とする高速度工具鋼の
チタン、窒化チタン、炭化チタン等のチタン化合物のコ
ーティング被膜の除去剤。
1. A polymerized phosphoric acid alkali salt of 1 to 20% by weight and a hydroxy carbonate organic acid alkali salt of 1% by weight.
1 to 10% by weight of seeds or more, 2 to 15% by weight of ethylene / diamine / acetic acid alkali salt, and 0.1 to 0.1% of alkali hydroxide.
5 wt%, thioglycolic acid alkali salt 0.05 ~
Removal agent for coating film of titanium compound such as titanium, titanium nitride and titanium carbide of high speed tool steel, characterized by being composed of a mixed aqueous solution containing 0.5% by weight and 3 to 7% by weight of hydrogen peroxide. ..
JP3230983A 1991-08-19 1991-08-19 Removal agent for titanium coating on high speed tool steel Expired - Lifetime JP2597931B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3230983A JP2597931B2 (en) 1991-08-19 1991-08-19 Removal agent for titanium coating on high speed tool steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3230983A JP2597931B2 (en) 1991-08-19 1991-08-19 Removal agent for titanium coating on high speed tool steel

Publications (2)

Publication Number Publication Date
JPH05112885A true JPH05112885A (en) 1993-05-07
JP2597931B2 JP2597931B2 (en) 1997-04-09

Family

ID=16916393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3230983A Expired - Lifetime JP2597931B2 (en) 1991-08-19 1991-08-19 Removal agent for titanium coating on high speed tool steel

Country Status (1)

Country Link
JP (1) JP2597931B2 (en)

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* Cited by examiner, † Cited by third party
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WO1999024642A1 (en) * 1997-11-10 1999-05-20 Balzers Hochvakuum Ag Method for separating layers from articles
JP2002517615A (en) * 1998-06-11 2002-06-18 ユナキス・トレーディング・アクチェンゲゼルシャフト Method for removing a hard material layer
JP2007519825A (en) * 2004-01-29 2007-07-19 オー・ツェー・エリコン・バルザース・アクチェンゲゼルシャフト Single chamber apparatus for performing film removal method and film removal method
CN101818360A (en) * 2010-03-16 2010-09-01 西安泰金工业电化学技术有限公司 Method for removing waste titanium anode coating
WO2011013766A1 (en) * 2009-07-31 2011-02-03 株式会社新菱 Method for removal of hard coating film in superhard material, and method for production of superhard material
JP2011127140A (en) * 2009-12-15 2011-06-30 Mitsubishi Gas Chemical Co Inc Surface treatment method for chromium-molybdenum steel
US7972653B2 (en) 2006-09-20 2011-07-05 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for removing amorphous carbon coatings with oxidizing molten salts and coated member regeneration method
CN103046052A (en) * 2012-12-27 2013-04-17 广东山之风环保科技有限公司 Environment-friendly decoating liquid for titanium-containing coatings and use method of environment-friendly decoating liquid
JP2014125640A (en) * 2012-12-25 2014-07-07 Sanwa Yuka Kogyo Kk Removal liquid for chromium-based hard film
JP2015030809A (en) * 2013-08-05 2015-02-16 三和油化工業株式会社 Etchant composition
CN106232875A (en) * 2014-02-04 2016-12-14 凯密特尔有限责任公司 For the method removing the base material being configured with organic coating
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167534A (en) * 1997-11-10 2009-07-30 Oerlikon Trading Ag Truebbach Method for separating layer from article, and solution therefor
WO1999024642A1 (en) * 1997-11-10 1999-05-20 Balzers Hochvakuum Ag Method for separating layers from articles
JP4824163B2 (en) * 1998-06-11 2011-11-30 エリコン・トレーディング・アクチェンゲゼルシャフト,トリュープバッハ Method for removing a hard material layer
JP2002517615A (en) * 1998-06-11 2002-06-18 ユナキス・トレーディング・アクチェンゲゼルシャフト Method for removing a hard material layer
JP2007519825A (en) * 2004-01-29 2007-07-19 オー・ツェー・エリコン・バルザース・アクチェンゲゼルシャフト Single chamber apparatus for performing film removal method and film removal method
JP4675908B2 (en) * 2004-01-29 2011-04-27 エリコン・トレーディング・アクチェンゲゼルシャフト,トリュープバッハ Single chamber apparatus for performing film removal method and film removal method
US7972653B2 (en) 2006-09-20 2011-07-05 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for removing amorphous carbon coatings with oxidizing molten salts and coated member regeneration method
WO2011013766A1 (en) * 2009-07-31 2011-02-03 株式会社新菱 Method for removal of hard coating film in superhard material, and method for production of superhard material
JP2011127140A (en) * 2009-12-15 2011-06-30 Mitsubishi Gas Chemical Co Inc Surface treatment method for chromium-molybdenum steel
CN101818360A (en) * 2010-03-16 2010-09-01 西安泰金工业电化学技术有限公司 Method for removing waste titanium anode coating
JP2014125640A (en) * 2012-12-25 2014-07-07 Sanwa Yuka Kogyo Kk Removal liquid for chromium-based hard film
CN103046052A (en) * 2012-12-27 2013-04-17 广东山之风环保科技有限公司 Environment-friendly decoating liquid for titanium-containing coatings and use method of environment-friendly decoating liquid
CN103046052B (en) * 2012-12-27 2016-01-20 广东山之风环保科技有限公司 The stripping liquid of environment-friendly type titanium-containing film and using method thereof
JP2015030809A (en) * 2013-08-05 2015-02-16 三和油化工業株式会社 Etchant composition
CN106232875A (en) * 2014-02-04 2016-12-14 凯密特尔有限责任公司 For the method removing the base material being configured with organic coating
WO2021210599A1 (en) * 2020-04-15 2021-10-21 花王株式会社 Method of cleaning substrate

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