JPH0957628A - Roughening treatment method by blasting - Google Patents
Roughening treatment method by blastingInfo
- Publication number
- JPH0957628A JPH0957628A JP22702995A JP22702995A JPH0957628A JP H0957628 A JPH0957628 A JP H0957628A JP 22702995 A JP22702995 A JP 22702995A JP 22702995 A JP22702995 A JP 22702995A JP H0957628 A JPH0957628 A JP H0957628A
- Authority
- JP
- Japan
- Prior art keywords
- blasting
- speed
- processed
- sec
- specific gravity
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ブラスト加工によ
り被処理品を粗面化する処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing method for roughening an object to be processed by blasting.
【０００２】[0002]
【従来の技術】従来、簡易に被処理品の表面を粗くする
ため、ブラスト加工は、塗装やコ−ティング等の前処理
あるいは溶射前の投錨効果を付与する前処理法として用
いられている。ブラスト加工条件には投射材のサイズ、
形状及び投射速度等があるが、投射材のサイズは、通
常、被処理品の処理目的に応じた粗面化の凹凸程度によ
り決まり、投射速度は、さらに被処理品の材質・形状を
勘案して５０〜９０ｍ／ｓｅｃが用いられていた。この
投射速度は従来より経験的な値として常用されている。
しかしながら、投射速度が速くなると、被処理品等との
衝突による破損のため投射材の寿命が短くなり、また、
ブラスト加工室内のライナ、搬送部品等の部材消耗が激
しくなっていた。このため、被処理品の粗面化処理のラ
ンニングコストがかさみ、業界では、投射材の寿命の延
長及び部材摩耗の低減が強く求めていた。とりわけ近年
では、被処理品の材質に硬度の高い特殊鋼材等が多用さ
れるようになり、さらに投射速度を高くする必要があ
り、業界では、益々、被処理品の粗面化処理のランニン
グコストの低減が求められている。2. Description of the Related Art Conventionally, blasting has been used as a pretreatment such as painting or coating, or as a pretreatment for imparting an anchoring effect before thermal spraying in order to easily roughen the surface of an article to be treated. Blasting conditions include size of shot material,
Although there are shapes and projection speeds, the size of the projection material is usually determined by the degree of unevenness of roughening according to the processing purpose of the object to be processed, and the projection speed further considers the material and shape of the object to be processed. 50 to 90 m / sec was used. This projection speed has been conventionally used as an empirical value.
However, if the projection speed becomes faster, the life of the projection material will be shortened due to damage due to collision with the processed object, etc.
The wear of members such as liners and transfer parts in the blasting chamber was increasing. For this reason, the running cost of the surface roughening treatment of the article to be treated is high, and the industry has strongly sought to extend the life of the projection material and reduce the wear of the members. Especially in recent years, special steel materials with high hardness are often used for the material of the object to be processed, and it is necessary to increase the projection speed.In the industry, the running cost of roughening treatment of the object to be processed is increasing. Is required to be reduced.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこれらの問題
に鑑みなされたものであり、投射材の寿命を大幅に延長
するとともにランニングコストを低減したブラスト加工
による粗面化処理方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of these problems, and provides a roughening treatment method by blasting which significantly extends the life of the shot material and reduces the running cost. With the goal.
【０００４】[0004]
【課題を解決するための手段】上記の目的を達成するた
めに本発明におけるブラスト加工による粗面化処理方法
は、比重１１〜２０からなる投射材を１０〜４０ｍ／ｓ
ｅｃの速度に加速する工程と、該加速した投射材を硬度
がＨＶ２５０以下の被処理品に衝突させることを特徴と
する。In order to achieve the above-mentioned object, a roughening treatment method by blasting in the present invention uses a projection material having a specific gravity of 11 to 20 m / s.
It is characterized in that the step of accelerating to a speed of ec and the accelerated shot material are made to collide with an object to be processed having a hardness of HV250 or less.
【０００５】本発明によれば、ブラスト加工による粗面
化処理方法において、比重１１〜２０からなる投射材を
１０〜４０ｍ／ｓｅｃの速度に加速したから、従来のよ
うな高速の投射材の加速必要はなく、投射材の比重を利
用して硬度がＨＶ２５０以下の被処理品の表面の粗面化
を効率よく達成できる。According to the present invention, in the roughening method by blasting, the projection material having a specific gravity of 11 to 20 is accelerated to a speed of 10 to 40 m / sec. There is no need to use the specific gravity of the shot material, and it is possible to efficiently achieve the roughening of the surface of the article to be processed having a hardness of HV250 or less.
【０００６】[0006]
【表１】 [Table 1]
【０００７】[0007]
【実施例１】以下本発明の実施例にもとづいて詳しく説
明する。表１は、投射材の粒径を０．３ｍｍに限定して
従来法と本発明の粗面化処理法を比較したものである。
被処理品の材質は、Ｓ４５Ｃで、硬さＨＢ１９０（ＨＶ
２００）であり、また、被処理品への投射角度は９０度
とした。表面あらさは１０点平均あらさとして表示し
た。従来法では常用されている比重が７．８の硬球を投
射材として用い、投射速度５０〜９０ｍ／ｓｅｃで１ｍ
2当たり１００Ｋｇの投射量の場合の表面の粗さであ
る。 本発明では比重が１１．６、１４．９、１５．
６、１６．８、１８．３の材料を投射材として用い、投
射速度１０〜４０ｍ／ｓｅｃで１ｍ当たり１００Ｋｇの
投射量の場合の表面の粗さである。この結果、従来法の
３１．３〜１７．０μｍの表面粗さにするために、本発
明では比重１１．６〜１８．３の投射材を１０〜４０ｍ
／ｓｅｃの投射速度で実現することができた。[Embodiment 1] A detailed description will be given below based on an embodiment of the present invention. Table 1 compares the conventional method and the roughening treatment method of the present invention with the grain size of the shot material limited to 0.3 mm.
The material to be processed is S45C and has hardness HB190 (HV190).
200), and the projection angle on the article to be processed was 90 degrees. Surface roughness was displayed as an average roughness of 10 points. In the conventional method, a hard ball having a specific gravity of 7.8, which is commonly used, is used as a projection material, and a projection speed of 50 to 90 m / sec is 1 m.
It is the surface roughness in the case of a projection amount of 100 Kg per 2 . In the present invention, the specific gravity is 11.6, 14.9, 15.
It is the surface roughness when the materials of 6, 16.8 and 18.3 are used as the projection material and the projection speed is 10 to 40 m / sec and the projection amount is 100 Kg per 1 m. As a result, in order to obtain the surface roughness of 31.3 to 17.0 μm of the conventional method, in the present invention, the projection material having a specific gravity of 11.6 to 18.3 is 10 to 40 m.
It was possible to achieve it with a projection speed of / sec.
【０００８】[0008]
【実施例２】Embodiment 2
【０００９】[0009]
【表２】 [Table 2]
【００１０】以下本発明を第２実施例にもとづいて詳し
く説明する。表２は、投射材の粒径を０．５ｍｍに限定
して従来法と本発明の粗面化処理法を比較したものであ
る。他の条件は実施例１と同様である。この結果、従来
法の５０．６〜２３．８μｍの表面粗さにするために、
本発明では比重１１．６〜１８．３の投射材を１０〜４
０ｍ／ｓｅｃの投射速度で実現することができた。The present invention will be described in detail below with reference to the second embodiment. Table 2 compares the conventional method and the roughening treatment method of the present invention with the grain size of the shot material limited to 0.5 mm. Other conditions are the same as in the first embodiment. As a result, in order to obtain the surface roughness of 50.6 to 23.8 μm of the conventional method,
In the present invention, a blast material having a specific gravity of 11.6 to 18.3 is set to 10 to 4
It could be realized at a projection speed of 0 m / sec.
【００１１】図１は、実施例１、２の結果を示すグラフ
である。このグラフにより、投射速度を低くしても表面
荒さは確保できることがわかる。FIG. 1 is a graph showing the results of Examples 1 and 2. From this graph, it can be seen that the surface roughness can be secured even if the projection speed is lowered.
【００１２】本発明に用いられる投射速度は、１０〜４
０ｍ／ｓｅｃである。部材消耗の観点からは、投射速度
は低い方がよい。しかし、粗面化処理のためには、被処
理品の材質により異なるが、ある程度の速度は必要であ
る。このため、投射速度は最低１０ｍ／ｓｅｃが必要で
ある。一方、４０ｍ／ｓｅｃを超える投射速度になる
と、投射材の寿命が短くなるという問題が生じ始める。The projection speed used in the present invention is 10 to 4
It is 0 m / sec. From the viewpoint of material consumption, the lower the projection speed is, the better. However, a certain speed is required for the roughening treatment, although it depends on the material of the article to be treated. Therefore, the projection speed needs to be at least 10 m / sec. On the other hand, when the projection speed exceeds 40 m / sec, the problem that the life of the projection material becomes short begins to occur.
【００１３】本発明に用いられる投射材の比重は、１１
〜２０である。少なくとも比重が１１を必要とするの
は、これより少ない場合は、衝突のエネルギが少なく被
処理品の表面を荒らすことが効率よくできない。また、
比重を２０より大きくした場合は、現状においては素材
の製造が困難であり製造コストが高くなるため用いられ
ない。The specific gravity of the shot material used in the present invention is 11
-20. If the specific gravity is at least 11, if the specific gravity is less than this, the energy of collision is small and it is not possible to efficiently roughen the surface of the object to be processed. Also,
If the specific gravity is larger than 20, it is difficult to manufacture the raw material at present and the manufacturing cost becomes high, so that it cannot be used.
【００１４】本発明に好適な投射材の材料には、例え
ば、炭化タングステンなどの炭化物、窒化物、ホウ化物
などやこれらを主成分とするサ−メット、その他ＷＣ、
Ｗ2Ｃ、ＷまたはＷ及び／またはＷ2Ｃを主成分とする高
比重の焼結合金があげられる。このうち、錆を生じやす
い成分を含むものは被処理品に悪影響を与えるため、好
ましくない。投射材が被処理品に食い込んだり突き刺さ
ったりした場合にそこから錆を生じることになる。Examples of the material of the shot material suitable for the present invention include carbides such as tungsten carbide, nitrides, borides, etc., cermets containing these as the main components, and other WC,
Examples thereof include high specific gravity sintered alloys containing W 2 C, W or W and / or W 2 C as a main component. Among these, those containing a component that easily causes rust are not preferable because they adversely affect the article to be treated. When the projectile material bites into or is pierced by the object to be processed, it causes rust.
【００１５】なお、本発明においてＨＶ２５０以下の材
料については、投射材の硬度の違いはあまり粗面化に影
響しないことが確かめられた。In the present invention, it has been confirmed that for materials having an HV of 250 or less, the difference in hardness of the shot material does not affect the roughening.
【００１６】本発明に用いられる被処理品の硬度は、Ｈ
Ｖ２５０以下であり、好ましくはＨＶ２００以下であ
る。この被処理品には、例えば、ステンレス（ＳＵＳ４
０３はＨＶ１９０）、アルミ（ＨＶ９５以下）黄銅板
（ＨＶ１３５）等がある。被処理品の硬度がＨＶ２５０
を越える場合には、従来法と同等の表面あらさの値を生
成することができず、表面あらさの値が低くなった。The hardness of the object to be treated used in the present invention is H
V250 or less, preferably HV200 or less. For example, stainless steel (SUS4
03 is HV190), aluminum (HV95 or less) brass plate (HV135), and the like. The hardness of the processed product is HV250
When it exceeds, the surface roughness value equivalent to that of the conventional method cannot be generated, and the surface roughness value becomes low.
【００１７】なお、本発明は、窒化処理材料又は浸炭処
理材料（例えば、ＳＮＣＭ浸炭窒化材ＨＶ８００、ＳＣ
Ｍ４２０はＨＶ７８０）等の疲れ強度の増加に用いるシ
ョットピ−ニングとは、その目的が異なっている。ショ
ットピ−ニングに用いられる材料は、通常ＨＶ７００よ
り大きいものが用いられており、これらの材料は表面を
荒らすことなく残留応力を被処理品に施す必要がある。In the present invention, the nitriding material or carburizing material (for example, SNCM carbonitriding material HV800, SC
The purpose of M420 is different from that of shot pinning used for increasing fatigue strength such as HV780). Materials used for shot pinning are generally larger than HV700, and it is necessary to apply residual stress to the object to be processed without roughening the surface of these materials.
【００１８】[0018]
【発明の効果】本発明によるブラスト加工による粗面化
処理方法は、ブラストによる投射材の寿命を大幅に延長
させ、加工のランニングコストを低減できる。このた
め、塗装や溶射の前処理のコストが削減できる等、業界
に与える影響は著大である。The surface roughening treatment method by blasting according to the present invention can significantly extend the life of the blasting material by blasting and reduce the running cost of processing. Therefore, the impact on the industry is significant such that the cost of pretreatment for coating and spraying can be reduced.
【図１】本発明の実施例１，２の結果を示すグラフであ
る。FIG. 1 is a graph showing the results of Examples 1 and 2 of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹田 仁 愛知県豊川市穂ノ原３−１新東工業株式会 社内 (72)発明者 大久保 昌和 神奈川県川崎市幸区塚越１−７東芝タンガ ロイ株式会社内 (72)発明者 貞広 孟史 神奈川県川崎市幸区塚越１−７東芝タンガ ロイ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hitoshi Takeda 3-1, Honohara, Toyokawa-shi, Aichi Shinto Kogyo Co., Ltd. (72) Inventor Masakazu Okubo 1-7 Tsukagoshi, Sachi-ku, Kawasaki-shi, Kanagawa Toshiba Tangaloy Co., Ltd. (72) Inventor Takeshi Sadahiro 1-7 Tsukagoshi, Sachi-ku, Kawasaki-shi, Kanagawa Toshiba Tungaloy Co., Ltd.
Claims (1)
〜４０ｍ／ｓｅｃの速度に加速する工程と、該加速した
投射材を硬度がＨＶ２５０以下の被処理品に衝突させる
ことを特徴とするブラスト加工による粗面化処理方法。1. A blast material having a specific gravity of 11 to 10
A roughening treatment method by blasting, which comprises accelerating to a speed of -40 m / sec and causing the accelerated shot material to collide with an object to be treated having a hardness of HV250 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22702995A JPH0957628A (en) | 1995-08-11 | 1995-08-11 | Roughening treatment method by blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22702995A JPH0957628A (en) | 1995-08-11 | 1995-08-11 | Roughening treatment method by blasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0957628A true JPH0957628A (en) | 1997-03-04 |
Family
ID=16854409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22702995A Pending JPH0957628A (en) | 1995-08-11 | 1995-08-11 | Roughening treatment method by blasting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0957628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013022719A (en) * | 2011-07-26 | 2013-02-04 | Osg Corp | Tool surface modifying method and tool |
-
1995
- 1995-08-11 JP JP22702995A patent/JPH0957628A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013022719A (en) * | 2011-07-26 | 2013-02-04 | Osg Corp | Tool surface modifying method and tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3730015B2 (en) | Surface treatment method for metal products | |
| EP1052065B1 (en) | "Centrifugal blasting apparatus" | |
| EP3054027B1 (en) | Method for enhancing adhesion of low-temperature ceramic coating | |
| JPH1029160A (en) | Shot-peening method for high hardness metal products and high hardness metal products | |
| EP0687739A1 (en) | Method of making surface-hardened metal shot | |
| JP4656473B2 (en) | Coated tool for hot working with excellent lubricant adhesion and wear resistance | |
| JPH0957628A (en) | Roughening treatment method by blasting | |
| JP2001065576A (en) | Bearing part material | |
| JPH06240303A (en) | Treatment of surface layer of alloy powder | |
| JP3227492B2 (en) | Spring shot peening method and spring product | |
| WO1990004044A1 (en) | Surface treatment of metals and alloys | |
| JPH08323626A (en) | Shot peening method and treated article | |
| JP2012139790A (en) | Method of shot peening superior in lifetime of shot material | |
| JPH0457672A (en) | Method and device for shot peening | |
| JPH10100069A (en) | Shot peening method and treated article | |
| JP3263799B2 (en) | Surface treatment method of valve lifter | |
| JP2003191166A (en) | Mold life improvement method and mold | |
| JP4926428B2 (en) | Method for producing sputtering target material | |
| EP0922786B1 (en) | Method for forming ceramic coated products | |
| JP2002371348A (en) | Method for improving fatigue characteristics of titanium alloy component, and titanium alloy component therewith | |
| JP2003211357A (en) | Method of improving life of gear and driving force transmitting component, gear and driving force transmitting component | |
| JP3465808B2 (en) | Projectile material | |
| JP3954739B2 (en) | Method for producing nitrogen-containing Cr coating | |
| JPH0413573A (en) | Surface finishing method for metal products | |
| JPH02190263A (en) | Shot peening method and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020621 |