SMALL METAL COMPONENT

• Main Authors: TAKAKUWA TOSHIHIRO, KATSUMATA YUICHI, MASUI KEIICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 28.08.2023
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a small metal component capable of reliably preventing surface treatment failure.SOLUTION: On a plane part 13 of a surface-treated small metal component, an uneven or tapered part is formed to prevent plane parts from adhering to each other in a surface treatment process. The uneven part can be any of a circumferential groove 20, a radial groove and a knurl, or a combination thereof. In the surface treatment process using a basket, even when the plane parts 13 are brought into close contact with each other, a slight gap is formed due to the uneven and tapered part, and surface treatment liquid enters, so that no surface treatment failure occurs.SELECTED DRAWING: Figure 3 【課題】表面処理不良を確実に防止できる小型金属部品を提供する。【解決手段】表面処理された小型金属部品の平面部１３に、表面処理工程における平面部同士の密着を防止する凹凸またはテーパを形成する。凹凸は、周方向の溝２０、半径方向の溝、ローレットの何れか、またはそれらの組み合わせとすることができる。バスケットを用いた表面処理工程において、平面部１３どうしが密着しても、凹凸やテーパにより僅かな隙間が形成され、表面処理液が進入するので、表面処理不良が発生しない。【選択図】図３