JPH0625361B2 - Blast material - Google Patents
Blast materialInfo
- Publication number
- JPH0625361B2 JPH0625361B2 JP61120800A JP12080086A JPH0625361B2 JP H0625361 B2 JPH0625361 B2 JP H0625361B2 JP 61120800 A JP61120800 A JP 61120800A JP 12080086 A JP12080086 A JP 12080086A JP H0625361 B2 JPH0625361 B2 JP H0625361B2
- Authority
- JP
- Japan
- Prior art keywords
- iron
- zinc
- coating
- zinc alloy
- alloy layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は金属または非金属の物質表面の清浄化等を目
的とするショットブラストと、金属の表面を機械的に被
覆（めっき）する金属被覆すなわちメカニカルプレーテ
ィングのそれぞれに共用し得るブラスト粒に係り、特に
核の周囲の鉄−亜鉛合金層を介して亜鉛または亜鉛合金
層を被覆してなるブラスト用材料に関する。TECHNICAL FIELD The present invention relates to shot blast for the purpose of cleaning the surface of a metal or non-metal substance, and a metal coating or mechanical coating for mechanically coating (plating) the surface of a metal. The present invention relates to blast particles that can be commonly used for each plating, and more particularly to a blasting material obtained by coating a zinc or zinc alloy layer with an iron-zinc alloy layer around a core.
従来技術とその問題点 金属または非金属の物質表面の清浄、錆落し、研削、模
様つけ、表面硬化等の処理方法の一つとして、各種の粒
子を投射するショットブラスト法がある。このショット
ブラスト法で用いる投射粒子としては、スチールショッ
ト、ステンレスカットワイヤー、アルミナ粒等が知られ
ている。これらは被処理面に被膜を形成して耐食性等の
機能を付与するものではないため、防食を必要とする場
合はショットブラスト後めっき等の表面処理を要する。2. Description of the Related Art Conventional technology and its problems As one of treatment methods for cleaning, rusting, grinding, patterning, surface hardening a surface of a metal or non-metal substance, there is a shot blast method in which various particles are projected. As shot particles used in this shot blasting method, steel shots, stainless cut wires, alumina particles and the like are known. Since these do not form a film on the surface to be treated and impart functions such as corrosion resistance, surface treatment such as plating after shot blasting is required when corrosion protection is required.
一方、鉄や鋼等各種製品に耐食性等の機能を付与するた
めの金属被覆法の一つであるメカニカルプレーティング
法に用いる投射粒子としては、亜鉛合金粒（特開昭56
−93801）、鉄または鉄合金を核としその周囲に鉄−
亜鉛合金層を介して亜鉛または亜鉛合金層を有するブラ
スト材料（以下鉄−亜鉛ブラスト材料という）が知られ
ている（特公昭59-9312）。しかし、亜鉛合金粒の場
合、通常のブラストのみでは得られる被覆層（鉄−亜鉛
合金被膜）の密着性が劣る欠点がある。これに対し、
鉄−亜鉛ブラスト材料の場合は、極めて密着性に富む鉄
−亜鉛合金被膜が得られ、すぐれた耐食性を有する。し
かし、この鉄−亜鉛ブラスト材料は球状で周囲を亜鉛ま
たは亜鉛合金で被覆されているため、酸化スケール等を
除去する研掃力は前記被覆層が脆いため小さい。従っ
て、研掃に引続いてコーティングを施すのに長時間要
し、またその被処理物が鋼材の場合酸化スケールがコー
ティング被膜に取込まれ、耐食性評価時赤錆が発生しや
すい傾向を有している。すなわち、赤錆発生はブラスト
材料の研掃力が小さいことに原因がある。On the other hand, as projection particles used in a mechanical plating method, which is one of metal coating methods for imparting functions such as corrosion resistance to various products such as iron and steel, zinc alloy particles (Japanese Patent Laid-Open No.
-93801), iron or iron alloy as core and iron around it-
A blast material having a zinc or zinc alloy layer via a zinc alloy layer (hereinafter referred to as iron-zinc blast material) is known (Japanese Patent Publication No. 59-9312). However, in the case of zinc alloy particles, there is a drawback that the adhesion of the coating layer (iron-zinc alloy coating) obtained by ordinary blasting is inferior. In contrast,
In the case of iron-zinc blast material, an iron-zinc alloy coating film having extremely high adhesion can be obtained and has excellent corrosion resistance. However, since this iron-zinc blast material has a spherical shape and its periphery is coated with zinc or a zinc alloy, the scouring force for removing oxide scale and the like is small because the coating layer is brittle. Therefore, it takes a long time to apply the coating after the scouring, and when the object to be treated is a steel material, the oxide scale is taken into the coating film, which tends to cause red rust during the corrosion resistance evaluation. There is. That is, the occurrence of red rust is due to the small blasting and cleaning force of the blast material.
発明の目的 この発明は従来の前記ブラスト材料の欠点を解消するた
めになされたもので、密着性の良好なコーティング被膜
が得られ、しかも脱スケール効果の大きい鉄−亜鉛ブラ
スト材料を提供することを目的とするものである。An object of the present invention is to eliminate the drawbacks of the conventional blast materials, and to provide an iron-zinc blast material having a large descaling effect, which can provide a coating film with good adhesion. It is intended.
発明の構成 この発明に係るブラスト用材料は鉄、鉄合金または鋼の
円柱または角柱を核とし、この核の両端面を除く表面に
鉄−亜鉛合金層を有し、さらに前記鉄−亜鉛合金層の上
に亜鉛または亜鉛合金層を有することを特徴とするもの
である。Composition of the Invention The blasting material according to the present invention has a core of a column or prism of iron, iron alloy or steel, has an iron-zinc alloy layer on the surface excluding both end faces of the core, and further the iron-zinc alloy layer Is characterized by having a zinc or zinc alloy layer on it.
すなわち、この発明は前記鉄−亜鉛ブラスト材料を改良
したものであり、従来球状であった核を円柱または角柱
とするとともに、この核の両端面を除く表面に鉄−亜鉛
合金層を介して亜鉛または亜鉛合金層を形成したもので
ある。つまり、円柱または角柱の核の両端面を露出させ
ることによって、鉄−亜鉛ブラスト材料の弱点であった
研掃力の増大をはかり、被処理物の脱スケール効果およ
び鉄−亜鉛コーティング後の防食性を向上させたもので
ある。That is, the present invention is an improvement of the iron-zinc blast material, in which the conventionally spherical core is formed into a cylinder or a prism, and zinc is formed on the surface excluding both end faces of the core through an iron-zinc alloy layer. Alternatively, a zinc alloy layer is formed. In other words, by exposing both end faces of the core of a cylinder or prism, the weakening point of the iron-zinc blasting material was increased, and the descaling effect of the object to be treated and the corrosion resistance after iron-zinc coating were measured. Is improved.
第１図はこの発明に係る鉄−亜鉛ブラスト材料の一例を
示す斜視図で、(1)は鉄、鉄合金または鋼を素材とする
円柱状の核、(2)は鉄−亜鉛合金層、(3)は亜鉛または亜
鉛合金層を示す。すなわち、このブラスト材料は鉄、鉄
合金または鋼を素材とする円柱状の核(1)の両端面を除
く鉄−亜鉛合金層(2)を介して亜鉛または亜鉛合金層(3)
を被着してなる独立した粒子の集合体からなるものであ
る。FIG. 1 is a perspective view showing an example of an iron-zinc blast material according to the present invention, (1) is a cylindrical core made of iron, iron alloy or steel, (2) is an iron-zinc alloy layer, (3) indicates a zinc or zinc alloy layer. That is, this blast material is a zinc or zinc alloy layer (3) through the iron-zinc alloy layer (2) excluding both end faces of a cylindrical core (1) made of iron, iron alloy or steel.
It is composed of an aggregate of independent particles formed by coating.
この鉄−亜鉛ブラスト材料の製造方法としては、例えば
鋼線に溶融亜鉛めっきを施し、続いて合金化処理により
前記めっき層を鉄−亜鉛合金層とした後、所定の長さ
（鋼線直径と同等）に切断することにより得ることがで
きる。このようにして得られた鉄−亜鉛ブラスト材料
は、核の両端面すなわち被覆層のない部分が露出してい
るため、酸化スケール等を除去する研掃力が大きく、従
って酸化スケール等がコーティング被膜に取込まれるこ
とがないため、すぐれた耐食性が得られる。As a method for producing the iron-zinc blast material, for example, hot dip galvanizing is applied to a steel wire, and then the plating layer is formed into an iron-zinc alloy layer by an alloying treatment, and then a predetermined length (steel wire diameter and Equivalent). The iron-zinc blast material thus obtained has a large scouring power for removing oxide scale and the like, because both end faces of the nucleus, that is, the portion without the coating layer is exposed, and therefore oxide scale and the like have a coating film. Since it is not incorporated into the steel, excellent corrosion resistance can be obtained.
なお、核として角柱を用いる方が酸化スケール除去にす
ぐれた効果を示すが、円柱の方が製造し易い利点があ
る。It should be noted that the use of prisms as the core has a better effect in removing the oxide scale, but the column has the advantage of being easier to manufacture.
実施例１ 直径０．５ｍｍの鋼線に150g/m2溶融亜鉛めっきを施
し、続いて合金化処理により前記めっき層を鉄−亜鉛合
金層（Fe量15％）とし、素材鋼線の直径と同長に切断し
て得たブラスト材料を用い、インペラー式投射法により
投射スピード64ｍ/s，投射量54kg/minの条件にてSS41の
熱延鋼板（厚さ3 mm，黒皮つき）に10分間投射し脱スケ
ールと鉄−亜鉛合金被膜形成を行なった後、密着曲げ→
粘着テープテストによる密着性、塩水噴霧試験(100時
間)での赤錆発生状況を調査した結果を第１表に示す。Example 1 A steel wire having a diameter of 0.5 mm was subjected to hot dip galvanizing at 150 g / m 2 and then an alloying treatment was performed to form an iron-zinc alloy layer (Fe content: 15%), and the diameter of the raw steel wire was 10 pieces of SS41 hot-rolled steel sheet (thickness: 3 mm, with black skin) were used by the impeller-type projection method under the conditions of a projection speed of 64 m / s and a projection rate of 54 kg / min using the blast material obtained by cutting into the same length. After projecting for minutes to perform descaling and iron-zinc alloy film formation, contact bending →
Table 1 shows the results of an examination of the adhesiveness by the adhesive tape test and the red rust occurrence state in the salt spray test (100 hours).
なお第１表には、比較のためほぼ同一直径の鉄−亜鉛合
金粒およびFe核を有する鉄−亜鉛合金粒を用い同一条件
で投射した場合の結果を併せて示した。For comparison, Table 1 also shows the results of projections under the same conditions using iron-zinc alloy particles and iron-zinc alloy particles having Fe nuclei having almost the same diameter.
第１表より明らかなごとく、比較例の試験No.３の鉄−
亜鉛合金粒（球状）では脱スケールが満足されず、被膜
の密着性、耐食性ともに劣っている。また、同試験No.
２のFe核を有する鉄−亜鉛合金粒（球状）の場合は脱ス
ケール性は良好であるが、被膜中にスケールが一部取込
まれたり、被膜が薄いため耐食性がやや劣っている。As is clear from Table 1, the iron of the test No. 3 of the comparative example-
With zinc alloy particles (spherical), descaling is not satisfied, and the adhesion and corrosion resistance of the coating are poor. In addition, the same test No.
In the case of iron-zinc alloy particles (spherical) having 2 Fe nuclei, the descaling property is good, but the corrosion resistance is somewhat inferior because part of the scale is incorporated into the coating or the coating is thin.
これに対し、本発明例の試験No.１の鉄−亜鉛合金粒
（円柱核）は脱スケール性および被膜密着性ともにすぐ
れ、良好な耐食性を示した。On the other hand, the iron-zinc alloy particles (cylindrical nucleus) of Test No. 1 of the present invention example were excellent in both descaling property and coating adhesion and showed good corrosion resistance.
実施例２ 直径０．３mmの鋼線に100g/m2溶融Zn−Alめっきを施
し、続いて合金化処理により前記めっき層をFe（10%）
−Al(5%)−Zn合金にし、０．５mm長さに切断して得たブ
ラスト材料を用い、投射スピード60ｍ/S，投射量 100kg
/min，投射時間15分のブラスト条件でSS41の熱延鋼板
（厚さ 3mm，黒皮つき）を脱スケールと被覆処理した
後、水系クロメート処理をスプレーで行なった。しかる
後、実施例１の同様の密着性試験と乾湿繰返し試験（5%
NaCl水35℃に 1時間浸漬50℃乾燥 1時間，期間10日）を
行なった結果を第２表に示す。 Example 2 A steel wire having a diameter of 0.3 mm was subjected to 100 g / m 2 hot-dip Zn—Al plating, and then the alloy was subjected to an alloying treatment to form the plated layer with Fe (10%)
-Al (5%)-Zn alloy was used, and the blasting material obtained by cutting it to a length of 0.5 mm was used. Projection speed 60 m / S, projection amount 100 kg
After descaling and coating the SS41 hot-rolled steel sheet (thickness: 3 mm, with black skin) under blasting conditions of 15 min / min and a projection time of 15 minutes, water-based chromate treatment was performed by spraying. Thereafter, the same adhesion test and dry / wet repeated test (5%
Table 2 shows the results of immersion in NaCl water at 35 ° C for 1 hour and drying at 50 ° C for 1 hour, period 10 days).
なお第２表には、本発明粒と同径の実施例１の比較粒を
用いブラスト処理および同様のクロメート処理を行なっ
た場合の結果を併せて示す。Table 2 also shows the results when the blasting treatment and the similar chromate treatment were performed using the comparative grains of Example 1 having the same diameter as the grains of the present invention.
第２表から明らかなごとく、Fe−Zn−Al合金粒の場合も
良好な密着性、耐食性を示した。As is clear from Table 2, the Fe-Zn-Al alloy particles also showed good adhesion and corrosion resistance.
実施例３ 直径 1mmの鋼線に200g/m2溶融Zn−Al−Mn−Mgめっきを
施し、続いて合金化処理で前記めっき層をZn−Al（15
%）−Mn(0.3%)−Mg(0.5%)−Fe(12%)合金にし、 1mm長さ
に切断して得たブラスト材料を用い、投射スピード54ｍ
/S，投射量82kg/min，投射時間10分の条件でSS41の熱延
鋼板（厚さ３．２mm，黒皮つき）を脱スケールと被覆処
理した後、水系クロメート処理をロールコートした。次
に、リン酸亜鉛による塗装前処理を行ない、その後カチ
オン電着塗装（20μｍ膜厚）し、素地に達するカット疵
を入れ塩水噴霧→乾燥→湿潤の腐蝕促進サイクルテスト
を50サイクル施し、カットからの塗膜ふくれ幅および腐
蝕深さで評価した結果を、実施例１の比較粒を用いブラ
スト処理した素材に前記と同様の塗装を施した場合と比
較して第３表に示す。 Example 3 A steel wire with a diameter of 1 mm was subjected to 200 g / m 2 hot dip Zn—Al—Mn—Mg plating, and then the plating layer was Zn—Al (15
%)-Mn (0.3%)-Mg (0.5%)-Fe (12%) alloy, cut into 1mm length, and use the blast material.
After descaling and coating SS41 hot rolled steel sheet (thickness 3.2 mm, with black skin) under the conditions of / S, projection rate 82 kg / min, and projection time 10 minutes, roll coating with water-based chromate treatment was performed. Next, pretreatment with zinc phosphate is performed, then cationic electrodeposition coating (20 μm film thickness) is performed, cut flaws that reach the substrate are put, salt water spray → dry → wet corrosion acceleration cycle test is performed for 50 cycles, and then cut Table 3 shows the results of evaluation by the coating film blister width and the corrosion depth in comparison with the case of applying the same coating to the material blasted using the comparative particles of Example 1 as described above.
第３表より、本発明のブラスト粒による処理は塗装下地
としても良好であることがわかる。From Table 3, it can be seen that the treatment with the blast particles of the present invention is good as a coating base.
発明の効果 以上説明したごとく、この発明のブラスト用材料は鉄、
鉄合金または鋼の円柱または角柱を核とし、この核の両
端面を除く表面に鉄−亜鉛合金層を介して亜鉛または亜
鉛合金層を形成し、核の両端面を露出させたことによっ
て、研掃力の増大がはかられ、密着性の良好なコーティ
ング被膜が得られる効果を有し、極めて有用性に富むも
のである。 As described above, the blast material of the present invention is iron,
A cylinder or prism of iron alloy or steel is used as a nucleus, and zinc or a zinc alloy layer is formed on the surface excluding both end faces of this nucleus through an iron-zinc alloy layer, and both end faces of the nucleus are exposed. It has an effect of obtaining a coating film having good adhesion and an increased sweeping power, and is extremely useful.
第１図はこの発明に係る鉄−亜鉛ブラスト材料の一例を
示す斜視図である。 １……円柱状の核、２……鉄−亜鉛合金層、３……亜鉛
または亜鉛合金層。FIG. 1 is a perspective view showing an example of an iron-zinc blast material according to the present invention. 1 ... Cylindrical core, 2 ... Iron-zinc alloy layer, 3 ... Zinc or zinc alloy layer.
フロントページの続き (72)発明者 大森 茂 岡山県岡山市築港栄町７番地 同和鉄粉工 業株式会社内 (72)発明者 渡辺 正次 岡山県岡山市築港栄町７番地 同和鉄粉工 業株式会社内Front page continuation (72) Inventor Shigeru Omori 7 Tsukiko Sakae-cho, Okayama-shi, Okayama Dowa Iron & Powder Co., Ltd. Within
Claims (1)
とし、この核の両端面を除く表面に鉄−亜鉛合金層を有
し、さらに前記鉄−亜鉛合金層の上に亜鉛または亜鉛合
金層を有することを特徴とするブラスト用材料。1. A core or a prism of iron, an iron alloy or steel is used as a core, and an iron-zinc alloy layer is provided on the surface excluding both end faces of the core, and zinc or zinc is further provided on the iron-zinc alloy layer. A blasting material having an alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61120800A JPH0625361B2 (en) | 1986-05-26 | 1986-05-26 | Blast material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61120800A JPH0625361B2 (en) | 1986-05-26 | 1986-05-26 | Blast material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62278204A JPS62278204A (en) | 1987-12-03 |
| JPH0625361B2 true JPH0625361B2 (en) | 1994-04-06 |
Family
ID=14795308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61120800A Expired - Fee Related JPH0625361B2 (en) | 1986-05-26 | 1986-05-26 | Blast material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625361B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2818226B2 (en) * | 1989-11-22 | 1998-10-30 | 株式会社川邑研究所 | Method of forming solid lubricating film |
| CN110799305B (en) * | 2017-06-21 | 2022-08-26 | 新东工业株式会社 | Zinc-based alloy pellet and method for manufacturing the same |
| WO2018235902A1 (en) * | 2017-06-21 | 2018-12-27 | 新東工業株式会社 | Zinc-based alloy shot and method for producing same |
-
1986
- 1986-05-26 JP JP61120800A patent/JPH0625361B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62278204A (en) | 1987-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |