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                                        氣壓試驗臺工作原理

                                        2016-12-02 0
                                        氣壓試驗臺工作原理
                                        設備主要使用標準工業氮氣瓶組為動力源,通過調壓閥減壓到設定壓力值后輸出。通過電磁閥啟閉來控制各測試回路的通斷,在卸壓管路上可以通過調節計量閥門的節流口來改變卸壓速率,同時在卸壓終端設置排氣消音裝置。
                                        (2)系統原理圖(如圖1所示)
                                        圖1(氣壓系統原理圖)
                                        (3)加壓模式
                                        試件內腔壓力從零以V1恒定速率連續加壓,直到測試壓力值,然后進行保壓。耐壓強度保壓試驗時間Δτ任意設定。(如圖2所示)

                                        圖2(加壓模式)


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