METHOD FOR CUTTING ELASTIC BODY

• Main Author: MATSUNAGA TAKANOBU
• Format: Patent
• Language: English; Japanese
• Published: 07.09.2017
• Subjects: DEVICES OR ARRANGEMENTS RELATED TO TYRES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TESTING; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a method for cutting the surface of an elastic body formed into a curved surface and a region in the vicinity of the surface.SOLUTION: The method for cutting an elastic body comprises: (1) a preparation step of preparing the elastic body having at least a part of the surface formed into a curved surface from an elastic material having a glass transition temperature Tg lower than the room temperature; (2) a molding step of molding the surface formed in the curved surface of the elastic body into a flat surface; (3) a cooling step of cooling the elastic body after the molding to a temperature lower than the temperature Tg; and (4) a cutting step of cutting the cooled elastic body to a depth of 1 μm or more and 500 μm or less from the surface. In the preparation step, the elastic body having at least a part of the surface formed into a developable surface is preferably prepared.SELECTED DRAWING: Figure 1 【課題】曲面に形成された弾性体の表面及び表面近傍領域を切削する方法の提供。【解決手段】この弾性体の切削方法は、（１）室温より低いガラス転移温度Ｔｇを有する弾性材料から、その表面の少なくとも一部が曲面に形成されている弾性体が準備される準備工程、（２）この弾性体の曲面に形成された表面が、平面に成形される成形工程、（３）この成形後の弾性体が、上記温度Ｔｇより低い温度に冷却される冷却工程及び（４）この冷却された弾性体の表面から１μｍ以上５００μｍ以下の深さで切削される切削工程を含んでいる。好ましくは、準備工程において、その表面の少なくとも一部が可展面に形成された弾性体が準備される。【選択図】図１