球壓試驗按標準規定的條件，用一定質量的球壓試驗器在一定的溫度(125±2°c），一定的時間下壓入非金屬，非陶瓷材料的表面來檢驗電動工具結構材料耐熱性的試驗。
基本介紹
- 中文名：球壓試驗
- 外文名：ball-pressure test
- 學科：物理
- 性質：試驗
球壓試驗
ball-pressure test
試件放置於水平位置，以20N壓力壓5mm直徑鋼珠作用於試件表面。此測試應在加熱箱內進行，加熱箱溫度75°C ± 2°C。鋼珠作用1小時後測量壓痕直徑。壓痕直徑大於2mm則試驗失敗。
The surface of the part to be tested is placed in the horizontal position and a steel ball of 5 mm diameter is pressed against the surface with a force of 20 N. The test is performed in a heating cabinet at a temperature of 75°C ± 2°C
The ball is withdrawn after 1 h and the diameter of the impression made by the ball is measured. An impression greater than 2 mm in diameter constitutes a failure.
